阅读说明：本技术 预制混凝土在冶金工程中的应用方法 (Application method of precast concrete in metallurgical engineering ) 是由 唐永基 周帅 唐剑 于 2021-07-29 设计创作，主要内容包括：本发明提出了一种预制混凝土在冶金工程中的应用方法,包括：根据施工图纸建立待施工建筑的模型；对待施工建筑的模型进行分解,根据地基的承载力大小确定连梁预留插筋的数量和长度,以及确定相邻的两段预制柱端部的预留插筋的数量和长度；根据确定的连梁预留插筋的数量和长度,以及两预制柱端部的预留插筋的数量和长度,对独立基础、连梁和预制柱进行预制。通过预制混凝土的方式进行施工,减少施工工序,极大缩短了土建施工周期；在进行预制件的安装时,利用大型机械节约人力材力,降低造价；采用质量可靠的预制混凝土施工,对结构的整体质量把控更加可靠,可极大避免因人文因素造成的结构质量问题；能够缩短周期,降低了施工过程中的安全隐患。(The invention provides an application method of precast concrete in metallurgical engineering, which comprises the following steps: establishing a model of a building to be constructed according to a construction drawing; decomposing a model of a building to be constructed, determining the number and the length of reserved dowels of the connecting beam according to the bearing capacity of a foundation, and determining the number and the length of reserved dowels at the end parts of two adjacent sections of prefabricated columns; and prefabricating the independent foundation, the connecting beam and the prefabricated columns according to the determined number and length of the reserved joint bars of the connecting beam and the determined number and length of the reserved joint bars at the end parts of the two prefabricated columns. Construction is carried out in a precast concrete mode, so that the construction procedures are reduced, and the civil construction period is greatly shortened; when the prefabricated member is installed, large machinery is utilized to save manpower and material force and reduce the manufacturing cost; the construction of precast concrete with reliable quality is adopted, the overall quality of the structure is controlled more reliably, and the problem of structure quality caused by human factors can be greatly avoided; the period can be shortened, and the potential safety hazard in the construction process is reduced.)

1. A method for applying precast concrete in metallurgical engineering is characterized by comprising the following steps:

step a: establishing a model of a building to be constructed according to a construction drawing;

step b: decomposing a model of a building to be constructed, determining the number and the length of reserved dowels of the connecting beam according to the bearing capacity of a foundation, and determining the number and the length of reserved dowels at the end parts of two adjacent sections of prefabricated columns;

step c: prefabricating the independent foundation, the connecting beam and the prefabricated columns according to the determined number and length of the reserved joint bars of the connecting beam and the determined number and length of the reserved joint bars at the end parts of the two prefabricated columns;

step d: and after the internal or upper structure of the foundation pit of the building to be constructed reaches a maintenance period, mounting the prefabricated independent foundation, the connecting beam and the prefabricated column at preset positions.

2. The method for applying precast concrete in metallurgical engineering according to claim 1, wherein in the step b, the bearing capacity a1 of the first predetermined foundation, the bearing capacity a2 of the second predetermined foundation, the bearing capacity A3 of the third predetermined foundation and the bearing capacity a4 of the fourth predetermined foundation are preset, and a1 < a2 < A3 < a 4; the length of a first preset connecting beam dowel is preset to be L1, the length of a second preset connecting beam dowel is preset to be L2, the length of a third preset connecting beam dowel is preset to be L3, the length of a fourth preset connecting beam dowel is preset to be L4, and L1 is more than L2 and more than L3 and more than L4; acquiring initial foundation bearing capacity A0 in a model of a building to be constructed, comparing the acquired initial foundation bearing capacity A0 with the bearing capacity of each preset foundation, and determining the length of a dowel of a connecting beam according to a comparison result:

when A0 is less than A1, selecting a first preset connecting beam dowel length L1 as the dowel length of the connecting beam during prefabrication;

when A1 is more than or equal to A0 and less than A2, selecting the length L2 of a second preset connecting beam dowel as the length of the dowel of the connecting beam during prefabrication;

when A2 is not less than A0 and is less than A3, selecting the length L3 of a third preset connecting beam dowel as the length of the dowel of the connecting beam during prefabrication;

and when A3 is more than or equal to A0 and less than A4, selecting the fourth preset connecting beam dowel length L4 as the dowel length of the connecting beam during prefabrication.

3. The application method of the precast concrete in the metallurgical engineering according to claim 2, characterized in that after the lengths of the dowels of the connecting beams are determined, an initial shear value B0 of the connecting beams is obtained in the model of the building to be constructed, and a first preset shear value B1, a second preset shear value B2, a third preset shear value B3 and a fourth preset shear value B4 are preset, and B1 < B2 < B3 < B4; the method is characterized in that the number of first preset connecting beam dowels is preset to be C1, the number of second preset connecting beam dowels is preset to be C2, the number of third preset connecting beam dowels is preset to be C3, the number of fourth preset connecting beam dowels is preset to be C4, and C1 is more than C2 and more than C3 and more than C4; setting the number of the dowel bars of the connecting beam according to the relation between the initial shear force value B0 and the preset shear force value:

when B0 is more than B1, selecting the number of first preset connecting beam dowels C1 as the number of dowels of the connecting beam;

when B1 is more than or equal to B0 and less than B2, selecting the number of second preset connecting beam dowels C2 as the number of dowels of the connecting beam;

when B2 is more than or equal to B0 and less than B3, selecting the number of third preset connecting beam dowels C3 as the number of dowels of the connecting beam;

and when B3 is not less than B0 is less than B4, selecting the fourth preset number C4 of connecting beam dowels as the number of dowels of the connecting beam.

4. The application method of the precast concrete in metallurgical engineering according to claim 3, characterized in that after the lengths and the number of the dowels of the connecting beam are determined, the initial cross-sectional area P0 of the connecting beam is obtained in the model of the building to be constructed, and a first preset connecting beam cross-sectional area P1, a second preset connecting beam cross-sectional area P2, a third preset connecting beam cross-sectional area P3 and a fourth preset connecting beam cross-sectional area P4 are preset, and P1 < P2 < P3 < P4; a first preset connecting beam dowel number correction coefficient a1, a second preset connecting beam dowel number correction coefficient a2, a third preset connecting beam dowel number correction coefficient a3 and a fourth preset connecting beam dowel number correction coefficient a4 are preset, and a is more than 1 and more than a1 and more than a2 and more than a3 and more than a4 and less than 1.5; selecting a connecting beam dowel number correction coefficient according to the relation between the initial sectional area P0 of the connecting beam and the preset connecting beam sectional area so as to correct the selected ith preset connecting beam dowel number Ci, wherein i is 1,2,3, 4:

when P0 is less than P1, a first preset connecting beam dowel quantity correction coefficient a1 is selected to correct the quantity of the selected connecting beam dowel, and the quantity of the corrected connecting beam dowel is Ci a 1;

when P1 is not less than P0 and is less than P2, selecting a second preset connecting beam dowel number correction coefficient a2 to correct the number of the selected connecting beam dowels, wherein the number of the dowels of the corrected connecting beam is Ci a 2;

when P2 is not less than P0 and is less than P3, selecting a third preset connecting beam dowel number correction coefficient a3 to correct the number of the selected connecting beam dowels, wherein the number of the dowels of the corrected connecting beam is Ci a 3;

and when the P3 is not less than P0 and is less than P4, selecting a fourth preset connecting beam dowel number correction coefficient a4 to correct the number of the selected connecting beam dowels, wherein the number of the dowels of the corrected connecting beam is Ci a 4.

5. The application method of the precast concrete in the metallurgical engineering according to claim 4, characterized in that after the number of the joint bars of the connecting beam is corrected, the vertical beam difference Q of the joint bars before and after the correction of the number of the joint bars of the connecting beam is calculated, wherein Q is Ci ai-Ci, i is 1,2,3, 4; presetting a first preset dowel quantity difference Q1, a second preset dowel quantity difference Q2, a third preset dowel quantity difference Q3 and a fourth preset dowel quantity difference Q4, wherein Q1 is more than Q2 and more than Q3 and more than Q4; the method is characterized in that a first preset connecting beam dowel length correction coefficient b1, a second preset connecting beam dowel length correction coefficient b2, a third preset connecting beam dowel length correction coefficient b3 and a fourth preset connecting beam dowel length correction coefficient b4 are preset, 1 is more than b1 and more than b2 and more than b3 and more than b4 and more than 1.2, the connecting beam dowel length correction coefficient is selected according to the relation between the vertical dowel difference Q and each preset dowel number difference, the preset i-th preset connecting beam dowel length Li is corrected, and i is 1,2,3, 4:

when Q is less than Q1, selecting a first preset connecting beam dowel length correction coefficient b1 to correct the length of the dowel of the connecting beam, wherein the corrected length of the dowel of the connecting beam is Li x b 1;

when Q1 is not less than Q < Q2, selecting a second preset connecting beam dowel length correction coefficient b2 to correct the length of the dowel of the connecting beam, wherein the corrected length of the dowel of the connecting beam is Li b 2;

when Q2 is not less than Q < Q3, selecting a third preset connecting beam dowel length correction coefficient b3 to correct the length of the dowel of the connecting beam, wherein the corrected length of the dowel of the connecting beam is Li b 3;

and when Q3 is not less than Q < Q4, selecting a fourth preset connecting beam dowel length correction coefficient b4 to correct the length of the dowel of the connecting beam, wherein the corrected length of the dowel of the connecting beam is Li b 4.

6. The method for applying precast concrete in metallurgical engineering according to claim 2, wherein in the step b, a first preset precast column length F1, a second preset precast column length F2, a third preset precast column length F3 and a fourth preset precast column length F4 are preset, and F1 < F2 < F3 < F4; the number of the first preset precast column segments G1, the number of the second preset precast column segments G2, the number of the third preset precast column segments G3 and the number of the fourth preset precast column segments G4 are preset, G1 is more than 0 and more than G2 and more than G3 and more than G4, and G1-G4 are positive integers; acquiring the length G0 of the whole prefabricated column in a model of a building to be constructed, and setting the number of the prefabricated columns in sections according to the relationship between the length G0 of the whole prefabricated column and the length of each preset prefabricated column:

when G0 < G1, selecting a first preset precast column segment number G1 as the segment number of the precast column;

when G1 is not less than G0 is less than G2, selecting the second preset prefabricated column section number G2 as the section number of the prefabricated columns;

when G2 is not less than G0 is less than G3, selecting a third preset prefabricated column section number G3 as the section number of the prefabricated columns;

when G3 is not less than G0 is less than G4, selecting the fourth preset prefabricated column section number G4 as the section number of the prefabricated columns;

presetting a first preset prefabricated column end reserved joint bar length P1, a second preset prefabricated column end reserved joint bar length P2, a third preset prefabricated column end reserved joint bar length P3 and a fourth preset prefabricated column end reserved joint bar length P4, wherein P1 is more than P2 and more than P3 and more than P4;

when the i-th preset prefabricated column section number Gi is selected as the section number of the prefabricated columns, i is 1,2,3 and 4, and Gi is used as the section number of the prefabricated columns to section the prefabricated columns, the reserved inserted bar length of the end part of each section of the prefabricated columns is set according to the relation between the initial foundation bearing capacity A0 acquired in the model of the building to be constructed and the bearing capacity of each preset foundation:

when A0 is less than A1, selecting the reserved joint bar length P1 of the first preset precast column end as the reserved joint bar length of each section of precast column end;

when A1 is not less than A0 and is not more than A2, selecting the length P2 of the reserved joint bar at the end of the second preset precast column as the length of the reserved joint bar at the end of each section of precast column;

when A2 is not less than A0 and is not more than A3, selecting the length P3 of the reserved dowel at the end of the third preset prefabricated column as the length of the reserved dowel at the end of each section of prefabricated column;

and when A3 is more than or equal to A0 and less than A4, selecting the length P4 of the reserved dowel at the end of the fourth preset prefabricated column as the length of the reserved dowel at the end of each section of prefabricated column.

7. The application method of the precast concrete in metallurgical engineering according to claim 6, characterized in that the number of the reserved dowels of the first preset precast column, K1, K2, K3 and K4 are preset, and K1 < K2 < K3 < K4; the cross section area of a first preset prefabricated column is Y1, the cross section area of a second preset prefabricated column is Y2, the cross section area of a third preset prefabricated column is Y3, the cross section area of a fourth preset prefabricated column is Y4, Y1 is more than Y2, more than Y3 and more than Y4; acquiring an initial sectional area Y0 of the precast column from a model of a building to be constructed, and setting the number of reserved dowels of the precast column according to the relationship between the initial sectional area Y0 of the precast column and the sectional area of each preset precast column:

when Y0 is less than Y1, selecting the first preset prefabricated column section area Y1 as the number of reserved inserting ribs arranged at the end part of the prefabricated column;

when Y1 is not less than Y0 and is less than Y2, selecting the sectional area Y2 of the second preset prefabricated column as the number of reserved inserting ribs arranged at the end part of the prefabricated column;

when Y2 is not less than Y0 and is less than Y3, selecting the sectional area Y3 of the third preset prefabricated column as the number of reserved inserting ribs arranged at the end part of the prefabricated column;

and when Y3 is not less than Y0 is less than Y4, selecting the cross section area Y4 of the fourth preset prefabricated column as the number of reserved inserting ribs arranged at the end part of the prefabricated column.

8. The application method of the precast concrete in metallurgical engineering according to claim 1, wherein when an independent foundation is preset, sleeves corresponding to the reserved joint bars are arranged on the independent foundation according to the determined number and length of the reserved joint bars prefabricated on the connecting beam.

Technical Field

The invention relates to the technical field of building construction, in particular to an application method of precast concrete in metallurgical engineering.

Background

At present, in the existing newly-built metallurgical engineering industry, a cast-in-place concrete structure is adopted in the civil engineering construction stage, namely the traditional construction process flows of reinforcement bar binding, formwork supporting and concrete pouring. This method is more traditional, but has some disadvantages: 1. in the cast-in-place structure, a series of common quality problems, even quality defects, can be generated in the reinforcement engineering and the template engineering according to human factors, and influence is generated on the whole structure. 2. The construction period is long, and the direct cost of the engineering produced by the man-machine is large. 3. The influence of the environment is large, and particularly the construction progress is easily influenced in the construction stage in rainy season. 4. The cast-in-place structure needs to be subjected to the working procedures of 28-day maintenance and the like. 5. A large amount of wood is needed for temporary support, a large amount of scaffold templates can be consumed, and energy conservation and environmental protection are not facilitated. 6. For part of deep foundation pit projects and construction of a cast-in-place structure of a basement, unstable factors and dangerous sources are generated for a long construction period, different measures (such as well point precipitation) are needed due to different geological conditions, and the overall cost control is difficult to control.

Disclosure of Invention

In view of the above, the present invention provides a method for applying precast concrete in metallurgical engineering, which aims to solve the above problems.

In one aspect, the invention provides a method for applying precast concrete in metallurgical engineering, which comprises the following steps:

step a: establishing a model of a building to be constructed according to a construction drawing;

step b: decomposing a model of a building to be constructed, determining the number and the length of reserved dowels of the connecting beam according to the bearing capacity of a foundation, and determining the number and the length of reserved dowels at the end parts of two adjacent sections of prefabricated columns;

step c: prefabricating the independent foundation, the connecting beam and the prefabricated columns according to the determined number and length of the reserved joint bars of the connecting beam and the determined number and length of the reserved joint bars at the end parts of the two prefabricated columns;

step d: and after the internal or upper structure of the foundation pit of the building to be constructed reaches a maintenance period, mounting the prefabricated independent foundation, the connecting beam and the prefabricated column at preset positions.

Further, in the step b, the bearing capacity a1 of the first preset foundation, the bearing capacity a2 of the second preset foundation, the bearing capacity A3 of the third preset foundation and the bearing capacity a4 of the fourth preset foundation are preset, and a1 is more than a2 and more than A3 and more than a 4; the length of a first preset connecting beam dowel is preset to be L1, the length of a second preset connecting beam dowel is preset to be L2, the length of a third preset connecting beam dowel is preset to be L3, the length of a fourth preset connecting beam dowel is preset to be L4, and L1 is more than L2 and more than L3 and more than L4; acquiring initial foundation bearing capacity A0 in a model of a building to be constructed, comparing the acquired initial foundation bearing capacity A0 with the bearing capacity of each preset foundation, and determining the length of a dowel of a connecting beam according to a comparison result:

when A0 is less than A1, selecting a first preset connecting beam dowel length L1 as the dowel length of the connecting beam during prefabrication;

when A1 is more than or equal to A0 and less than A2, selecting the length L2 of a second preset connecting beam dowel as the length of the dowel of the connecting beam during prefabrication;

when A2 is not less than A0 and is less than A3, selecting the length L3 of a third preset connecting beam dowel as the length of the dowel of the connecting beam during prefabrication;

and when A3 is more than or equal to A0 and less than A4, selecting the fourth preset connecting beam dowel length L4 as the dowel length of the connecting beam during prefabrication.

Further, after the lengths of the dowel bars of the connecting beam are determined, an initial shear force value B0 of the connecting beam is obtained from a model of a building to be constructed, a first preset shear force value B1, a second preset shear force value B2, a third preset shear force value B3 and a fourth preset shear force value B4 are preset, and B1 is larger than B2 and smaller than B3 and smaller than B4; the method is characterized in that the number of first preset connecting beam dowels is preset to be C1, the number of second preset connecting beam dowels is preset to be C2, the number of third preset connecting beam dowels is preset to be C3, the number of fourth preset connecting beam dowels is preset to be C4, and C1 is more than C2 and more than C3 and more than C4; setting the number of the dowel bars of the connecting beam according to the relation between the initial shear force value B0 and the preset shear force value:

when B0 is more than B1, selecting the number of first preset connecting beam dowels C1 as the number of dowels of the connecting beam;

when B1 is more than or equal to B0 and less than B2, selecting the number of second preset connecting beam dowels C2 as the number of dowels of the connecting beam;

when B2 is more than or equal to B0 and less than B3, selecting the number of third preset connecting beam dowels C3 as the number of dowels of the connecting beam;

and when B3 is not less than B0 is less than B4, selecting the fourth preset number C4 of connecting beam dowels as the number of dowels of the connecting beam.

Further, after the lengths and the number of the dowels of the connecting beam are determined, the initial sectional area P0 of the connecting beam is obtained from a model of a building to be constructed, a first preset connecting beam sectional area P1, a second preset connecting beam sectional area P2, a third preset connecting beam sectional area P3 and a fourth preset connecting beam sectional area P4 are preset, and P1 is more than P2 and more than P3 and more than P4; a first preset connecting beam dowel number correction coefficient a1, a second preset connecting beam dowel number correction coefficient a2, a third preset connecting beam dowel number correction coefficient a3 and a fourth preset connecting beam dowel number correction coefficient a4 are preset, and a is more than 1 and more than a1 and more than a2 and more than a3 and more than a4 and less than 1.5; selecting a connecting beam dowel number correction coefficient according to the relation between the initial sectional area P0 of the connecting beam and the preset connecting beam sectional area so as to correct the selected ith preset connecting beam dowel number Ci, wherein i is 1,2,3, 4:

when P0 is less than P1, a first preset connecting beam dowel quantity correction coefficient a1 is selected to correct the quantity of the selected connecting beam dowel, and the quantity of the corrected connecting beam dowel is Ci a 1;

when P1 is not less than P0 and is less than P2, selecting a second preset connecting beam dowel number correction coefficient a2 to correct the number of the selected connecting beam dowels, wherein the number of the dowels of the corrected connecting beam is Ci a 2;

when P2 is not less than P0 and is less than P3, selecting a third preset connecting beam dowel number correction coefficient a3 to correct the number of the selected connecting beam dowels, wherein the number of the dowels of the corrected connecting beam is Ci a 3;

and when the P3 is not less than P0 and is less than P4, selecting a fourth preset connecting beam dowel number correction coefficient a4 to correct the number of the selected connecting beam dowels, wherein the number of the dowels of the corrected connecting beam is Ci a 4.

Further, after correcting the number of the inserted bars of the connecting beam, calculating a vertical beam difference Q of the inserted bars before and after correcting the number of the inserted bars of the connecting beam, wherein Q is Ci ai-Ci, and i is 1,2,3, 4; presetting a first preset dowel quantity difference Q1, a second preset dowel quantity difference Q2, a third preset dowel quantity difference Q3 and a fourth preset dowel quantity difference Q4, wherein Q1 is more than Q2 and more than Q3 and more than Q4; the method is characterized in that a first preset connecting beam dowel length correction coefficient b1, a second preset connecting beam dowel length correction coefficient b2, a third preset connecting beam dowel length correction coefficient b3 and a fourth preset connecting beam dowel length correction coefficient b4 are preset, 1 is more than b1 and more than b2 and more than b3 and more than b4 and more than 1.2, the connecting beam dowel length correction coefficient is selected according to the relation between the vertical dowel difference Q and each preset dowel number difference, the preset i-th preset connecting beam dowel length Li is corrected, and i is 1,2,3, 4:

when Q is less than Q1, selecting a first preset connecting beam dowel length correction coefficient b1 to correct the length of the dowel of the connecting beam, wherein the corrected length of the dowel of the connecting beam is Li x b 1;

when Q1 is not less than Q < Q2, selecting a second preset connecting beam dowel length correction coefficient b2 to correct the length of the dowel of the connecting beam, wherein the corrected length of the dowel of the connecting beam is Li b 2;

when Q2 is not less than Q < Q3, selecting a third preset connecting beam dowel length correction coefficient b3 to correct the length of the dowel of the connecting beam, wherein the corrected length of the dowel of the connecting beam is Li b 3;

and when Q3 is not less than Q < Q4, selecting a fourth preset connecting beam dowel length correction coefficient b4 to correct the length of the dowel of the connecting beam, wherein the corrected length of the dowel of the connecting beam is Li b 4.

Further, in the step b, a first preset precast column length F1, a second preset precast column length F2, a third preset precast column length F3 and a fourth preset precast column length F4 are preset, and F1 < F2 < F3 < F4; the number of the first preset precast column segments G1, the number of the second preset precast column segments G2, the number of the third preset precast column segments G3 and the number of the fourth preset precast column segments G4 are preset, G1 is more than 0 and more than G2 and more than G3 and more than G4, and G1-G4 are positive integers; acquiring the length G0 of the whole prefabricated column in a model of a building to be constructed, and setting the number of the prefabricated columns in sections according to the relationship between the length G0 of the whole prefabricated column and the length of each preset prefabricated column:

when G0 < G1, selecting a first preset precast column segment number G1 as the segment number of the precast column;

when G1 is not less than G0 is less than G2, selecting the second preset prefabricated column section number G2 as the section number of the prefabricated columns;

when G2 is not less than G0 is less than G3, selecting a third preset prefabricated column section number G3 as the section number of the prefabricated columns;

when G3 is not less than G0 is less than G4, selecting the fourth preset prefabricated column section number G4 as the section number of the prefabricated columns;

presetting a first preset prefabricated column end reserved joint bar length P1, a second preset prefabricated column end reserved joint bar length P2, a third preset prefabricated column end reserved joint bar length P3 and a fourth preset prefabricated column end reserved joint bar length P4, wherein P1 is more than P2 and more than P3 and more than P4;

when the i-th preset prefabricated column section number Gi is selected as the section number of the prefabricated columns, i is 1,2,3 and 4, and Gi is used as the section number of the prefabricated columns to section the prefabricated columns, the reserved inserted bar length of the end part of each section of the prefabricated columns is set according to the relation between the initial foundation bearing capacity A0 acquired in the model of the building to be constructed and the bearing capacity of each preset foundation:

when A0 is less than A1, selecting the reserved joint bar length P1 of the first preset precast column end as the reserved joint bar length of each section of precast column end;

when A1 is not less than A0 and is not more than A2, selecting the length P2 of the reserved joint bar at the end of the second preset precast column as the length of the reserved joint bar at the end of each section of precast column;

when A2 is not less than A0 and is not more than A3, selecting the length P3 of the reserved dowel at the end of the third preset prefabricated column as the length of the reserved dowel at the end of each section of prefabricated column;

and when A3 is more than or equal to A0 and less than A4, selecting the length P4 of the reserved dowel at the end of the fourth preset prefabricated column as the length of the reserved dowel at the end of each section of prefabricated column.

Further, presetting a first preset prefabricated column reserved joint bar number K1, a second preset prefabricated column reserved joint bar number K2, a third preset prefabricated column reserved joint bar number K3 and a fourth preset prefabricated column reserved joint bar number K4, wherein K1 is more than K2 and more than K3 and more than K4; the cross section area of a first preset prefabricated column is Y1, the cross section area of a second preset prefabricated column is Y2, the cross section area of a third preset prefabricated column is Y3, the cross section area of a fourth preset prefabricated column is Y4, Y1 is more than Y2, more than Y3 and more than Y4; acquiring an initial sectional area Y0 of the precast column from a model of a building to be constructed, and setting the number of reserved dowels of the precast column according to the relationship between the initial sectional area Y0 of the precast column and the sectional area of each preset precast column:

when Y0 is less than Y1, selecting the first preset prefabricated column section area Y1 as the number of reserved inserting ribs arranged at the end part of the prefabricated column;

when Y1 is not less than Y0 and is less than Y2, selecting the sectional area Y2 of the second preset prefabricated column as the number of reserved inserting ribs arranged at the end part of the prefabricated column;

when Y2 is not less than Y0 and is less than Y3, selecting the sectional area Y3 of the third preset prefabricated column as the number of reserved inserting ribs arranged at the end part of the prefabricated column;

and when Y3 is not less than Y0 is less than Y4, selecting the cross section area Y4 of the fourth preset prefabricated column as the number of reserved inserting ribs arranged at the end part of the prefabricated column.

And further, when an independent foundation is preset, according to the determined number and length of the reserved joint bars prefabricated on the connecting beam, sleeves corresponding to the reserved joint bars are arranged on the independent foundation.

Compared with the prior art, the invention has the beneficial effects that the construction is carried out in a precast concrete mode, so that the construction procedures are reduced, and the civil engineering construction period is greatly shortened; when the prefabricated member is installed, large machinery is utilized to save manpower and material force and reduce the manufacturing cost; the construction of precast concrete with reliable quality is adopted, the overall quality of the structure is controlled more reliably, and the problem of structure quality caused by human factors can be greatly avoided; the period can be shortened, and the potential safety hazard in the construction process is reduced.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:

fig. 1 is a flowchart of a method for applying precast concrete in metallurgical engineering according to an embodiment of the present invention.

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

Referring to fig. 1, the embodiment provides a method for applying precast concrete in metallurgical engineering, which includes the following steps:

step a: establishing a model of a building to be constructed according to a construction drawing;

step b: decomposing a model of a building to be constructed, determining the number and the length of reserved dowels of the connecting beam according to the bearing capacity of a foundation, and determining the number and the length of reserved dowels at the end parts of two adjacent sections of prefabricated columns;

step c: prefabricating the independent foundation, the connecting beam and the prefabricated columns according to the determined number and length of the reserved joint bars of the connecting beam and the determined number and length of the reserved joint bars at the end parts of the two prefabricated columns;

step d: and after the internal or upper structure of the foundation pit of the building to be constructed reaches a maintenance period, mounting the prefabricated independent foundation, the connecting beam and the prefabricated column at preset positions.

Specifically, in the embodiment, when the model of the building to be constructed is established, the model is established in Revit software, meanwhile, each structural component of the building to be constructed is integrally decomposed by Revit, and is respectively prefabricated on the premise of meeting use and design requirements, the prefabricated material needs to be strictly controlled in quality, and is assembled in the foundation pit or an upper structure when the maintenance period is reached.

Specifically, in the step b, the bearing capacity a1 of the first preset foundation, the bearing capacity a2 of the second preset foundation, the bearing capacity A3 of the third preset foundation and the bearing capacity a4 of the fourth preset foundation are preset, and a1 < a2 < A3 < a 4; the length of a first preset connecting beam dowel is preset to be L1, the length of a second preset connecting beam dowel is preset to be L2, the length of a third preset connecting beam dowel is preset to be L3, the length of a fourth preset connecting beam dowel is preset to be L4, and L1 is more than L2 and more than L3 and more than L4; acquiring initial foundation bearing capacity A0 in a model of a building to be constructed, comparing the acquired initial foundation bearing capacity A0 with the bearing capacity of each preset foundation, and determining the length of a dowel of a connecting beam according to a comparison result:

when A0 is less than A1, selecting a first preset connecting beam dowel length L1 as the dowel length of the connecting beam during prefabrication;

when A1 is more than or equal to A0 and less than A2, selecting the length L2 of a second preset connecting beam dowel as the length of the dowel of the connecting beam during prefabrication;

when A2 is not less than A0 and is less than A3, selecting the length L3 of a third preset connecting beam dowel as the length of the dowel of the connecting beam during prefabrication;

and when A3 is more than or equal to A0 and less than A4, selecting the fourth preset connecting beam dowel length L4 as the dowel length of the connecting beam during prefabrication.

Specifically, after the lengths of the dowel bars of the connecting beam are determined, an initial shear force value B0 of the connecting beam is obtained from a model of a building to be constructed, a first preset shear force value B1, a second preset shear force value B2, a third preset shear force value B3 and a fourth preset shear force value B4 are preset, and B1 is larger than B2 and smaller than B3 and smaller than B4; the method is characterized in that the number of first preset connecting beam dowels is preset to be C1, the number of second preset connecting beam dowels is preset to be C2, the number of third preset connecting beam dowels is preset to be C3, the number of fourth preset connecting beam dowels is preset to be C4, and C1 is more than C2 and more than C3 and more than C4; setting the number of the dowel bars of the connecting beam according to the relation between the initial shear force value B0 and the preset shear force value:

when B0 is more than B1, selecting the number of first preset connecting beam dowels C1 as the number of dowels of the connecting beam;

when B1 is more than or equal to B0 and less than B2, selecting the number of second preset connecting beam dowels C2 as the number of dowels of the connecting beam;

when B2 is more than or equal to B0 and less than B3, selecting the number of third preset connecting beam dowels C3 as the number of dowels of the connecting beam;

and when B3 is not less than B0 is less than B4, selecting the fourth preset number C4 of connecting beam dowels as the number of dowels of the connecting beam.

Specifically, after the lengths and the number of the dowels of the connecting beam are determined, the initial sectional area P0 of the connecting beam is obtained from a model of a building to be constructed, a first preset connecting beam sectional area P1, a second preset connecting beam sectional area P2, a third preset connecting beam sectional area P3 and a fourth preset connecting beam sectional area P4 are preset, and P1 is more than P2 and more than P3 and more than P4; a first preset connecting beam dowel number correction coefficient a1, a second preset connecting beam dowel number correction coefficient a2, a third preset connecting beam dowel number correction coefficient a3 and a fourth preset connecting beam dowel number correction coefficient a4 are preset, and a is more than 1 and more than a1 and more than a2 and more than a3 and more than a4 and less than 1.5; selecting a connecting beam dowel number correction coefficient according to the relation between the initial sectional area P0 of the connecting beam and the preset connecting beam sectional area so as to correct the selected ith preset connecting beam dowel number Ci, wherein i is 1,2,3, 4:

when P0 is less than P1, a first preset connecting beam dowel quantity correction coefficient a1 is selected to correct the quantity of the selected connecting beam dowel, and the quantity of the corrected connecting beam dowel is Ci a 1;

when P1 is not less than P0 and is less than P2, selecting a second preset connecting beam dowel number correction coefficient a2 to correct the number of the selected connecting beam dowels, wherein the number of the dowels of the corrected connecting beam is Ci a 2;

when P2 is not less than P0 and is less than P3, selecting a third preset connecting beam dowel number correction coefficient a3 to correct the number of the selected connecting beam dowels, wherein the number of the dowels of the corrected connecting beam is Ci a 3;

and when the P3 is not less than P0 and is less than P4, selecting a fourth preset connecting beam dowel number correction coefficient a4 to correct the number of the selected connecting beam dowels, wherein the number of the dowels of the corrected connecting beam is Ci a 4.

Specifically, after the number of the dowels of the connecting beam is corrected, calculating the vertical beam difference Q of the dowels before and after the correction of the number of the dowels of the connecting beam, wherein Q is Ci ai-Ci, and i is 1,2,3 and 4; presetting a first preset dowel quantity difference Q1, a second preset dowel quantity difference Q2, a third preset dowel quantity difference Q3 and a fourth preset dowel quantity difference Q4, wherein Q1 is more than Q2 and more than Q3 and more than Q4; the method is characterized in that a first preset connecting beam dowel length correction coefficient b1, a second preset connecting beam dowel length correction coefficient b2, a third preset connecting beam dowel length correction coefficient b3 and a fourth preset connecting beam dowel length correction coefficient b4 are preset, 1 is more than b1 and more than b2 and more than b3 and more than b4 and more than 1.2, the connecting beam dowel length correction coefficient is selected according to the relation between the vertical dowel difference Q and each preset dowel number difference, the preset i-th preset connecting beam dowel length Li is corrected, and i is 1,2,3, 4:

when Q is less than Q1, selecting a first preset connecting beam dowel length correction coefficient b1 to correct the length of the dowel of the connecting beam, wherein the corrected length of the dowel of the connecting beam is Li x b 1;

when Q1 is not less than Q < Q2, selecting a second preset connecting beam dowel length correction coefficient b2 to correct the length of the dowel of the connecting beam, wherein the corrected length of the dowel of the connecting beam is Li b 2;

when Q2 is not less than Q < Q3, selecting a third preset connecting beam dowel length correction coefficient b3 to correct the length of the dowel of the connecting beam, wherein the corrected length of the dowel of the connecting beam is Li b 3;

and when Q3 is not less than Q < Q4, selecting a fourth preset connecting beam dowel length correction coefficient b4 to correct the length of the dowel of the connecting beam, wherein the corrected length of the dowel of the connecting beam is Li b 4.

Specifically, in the step b, a first preset precast column length F1, a second preset precast column length F2, a third preset precast column length F3 and a fourth preset precast column length F4 are preset, and F1 < F2 < F3 < F4; the number of the first preset precast column segments G1, the number of the second preset precast column segments G2, the number of the third preset precast column segments G3 and the number of the fourth preset precast column segments G4 are preset, G1 is more than 0 and more than G2 and more than G3 and more than G4, and G1-G4 are positive integers; acquiring the length G0 of the whole prefabricated column in a model of a building to be constructed, and setting the number of the prefabricated columns in sections according to the relationship between the length G0 of the whole prefabricated column and the length of each preset prefabricated column:

when G0 < G1, selecting a first preset precast column segment number G1 as the segment number of the precast column;

when G1 is not less than G0 is less than G2, selecting the second preset prefabricated column section number G2 as the section number of the prefabricated columns;

when G2 is not less than G0 is less than G3, selecting a third preset prefabricated column section number G3 as the section number of the prefabricated columns;

when G3 is not less than G0 is less than G4, selecting the fourth preset prefabricated column section number G4 as the section number of the prefabricated columns;

presetting a first preset prefabricated column end reserved joint bar length P1, a second preset prefabricated column end reserved joint bar length P2, a third preset prefabricated column end reserved joint bar length P3 and a fourth preset prefabricated column end reserved joint bar length P4, wherein P1 is more than P2 and more than P3 and more than P4;

when the i-th preset prefabricated column section number Gi is selected as the section number of the prefabricated columns, i is 1,2,3 and 4, and Gi is used as the section number of the prefabricated columns to section the prefabricated columns, the reserved inserted bar length of the end part of each section of the prefabricated columns is set according to the relation between the initial foundation bearing capacity A0 acquired in the model of the building to be constructed and the bearing capacity of each preset foundation:

when A0 is less than A1, selecting the reserved joint bar length P1 of the first preset precast column end as the reserved joint bar length of each section of precast column end;

when A1 is not less than A0 and is not more than A2, selecting the length P2 of the reserved joint bar at the end of the second preset precast column as the length of the reserved joint bar at the end of each section of precast column;

when A2 is not less than A0 and is not more than A3, selecting the length P3 of the reserved dowel at the end of the third preset prefabricated column as the length of the reserved dowel at the end of each section of prefabricated column;

and when A3 is more than or equal to A0 and less than A4, selecting the length P4 of the reserved dowel at the end of the fourth preset prefabricated column as the length of the reserved dowel at the end of each section of prefabricated column.

Specifically, the number of reserved dowels of a first preset prefabricated column is K1, the number of reserved dowels of a second preset prefabricated column is K2, the number of reserved dowels of a third preset prefabricated column is K3, the number of reserved dowels of a fourth preset prefabricated column is K4, and K1 is more than K2 and more than K3 is more than K4; the cross section area of a first preset prefabricated column is Y1, the cross section area of a second preset prefabricated column is Y2, the cross section area of a third preset prefabricated column is Y3, the cross section area of a fourth preset prefabricated column is Y4, Y1 is more than Y2, more than Y3 and more than Y4; acquiring an initial sectional area Y0 of the precast column from a model of a building to be constructed, and setting the number of reserved dowels of the precast column according to the relationship between the initial sectional area Y0 of the precast column and the sectional area of each preset precast column:

when Y0 is less than Y1, selecting the first preset prefabricated column section area Y1 as the number of reserved inserting ribs arranged at the end part of the prefabricated column;

when Y1 is not less than Y0 and is less than Y2, selecting the sectional area Y2 of the second preset prefabricated column as the number of reserved inserting ribs arranged at the end part of the prefabricated column;

when Y2 is not less than Y0 and is less than Y3, selecting the sectional area Y3 of the third preset prefabricated column as the number of reserved inserting ribs arranged at the end part of the prefabricated column;

and when Y3 is not less than Y0 is less than Y4, selecting the cross section area Y4 of the fourth preset prefabricated column as the number of reserved inserting ribs arranged at the end part of the prefabricated column.

Particularly, when presetting the independent foundation, according to the quantity and the length of the prefabricated reservation dowel on the even roof beam of confirming, set up the sleeve pipe corresponding with reservation dowel on the independent foundation.

Specifically, the model of the embodiment may be constructed through one terminal, and when the preset data are established, the data may be processed in another terminal, and the data may be established and processed through another terminal, so as to output a processing result, and a constructor may perform prefabrication of each component in a factory according to the processing result of the data.

Specifically, the above embodiment may adopt a sleeve connection, the sleeve is reserved inside the independent foundation when prefabricating (at the connection part of the bearing platform and the connecting beam), the grouting hole is reserved at the corresponding position, the dowel is reserved at the corresponding position of the connecting beam, the dowel is connected with the sleeve when assembling, and grouting is dense, such a mode is suitable for the connection of the frame column and the foundation, the shear wall with a smaller cross section is connected with the column, or the underground beam with a smaller cross section is connected with the foundation, and other areas with small design shear requirements.

Particularly, the embodiment can also adopt a steel bar overlapping mode to connect, two prefabricated columns are connected, the dowel bars are reserved at the two ends of the column, the dowel bars are subjected to overlapping binding or welding or a sleeve connection mode, the main reinforcements of the column are encrypted by stirrups, then template supporting is carried out, and concrete is poured to form integral connection.

It can be seen that the embodiment reduces the construction procedures and greatly shortens the civil engineering construction period by adopting the precast concrete construction; the large-scale machinery is utilized to save manpower and material force and reduce the manufacturing cost; the construction of the precast concrete with reliable quality is adopted, the overall quality of the structure is controlled more reliably, and the problem of structural quality caused by human factors can be greatly avoided. The period is shortened, and the potential safety hazard in the construction process is reduced.

As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.

The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention is described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: modifications and equivalents may be made to the embodiments of the invention without departing from the spirit and scope of the invention, which is to be covered by the claims.