阅读说明：本技术 一种用于斜坡区域内大截面框架柱施工工艺 (Construction process for large-section frame column in slope area ) 是由 李小鹏 柯麟质 李松 曾峥 王海棚 于 2021-09-24 设计创作，主要内容包括：本发明属于建筑施工领域,具体的说是一种用于斜坡区域内大截面框架柱施工工艺,该工艺包括以下步骤；S1：测量斜坡尺寸,根据斜坡尺寸计算混凝土牛腿的截面积、数量、间距和配筋数量；S2：根据S1计算后的数据,对工字钢、贝雷片、分配梁,进行强度、刚度计算,验算临时结构的扰度并按此调整支架的预拱度,解决了斜坡区域高大模板支架施工困难问题,解决了高回填地基沉降引起满堂支架竖向变形引起的质量、安全问题；大量的减少了支架用量,同时采用跨越式支架,支架地基不需要处理,也不需要硬化混凝土,也节约了碾压、换填设备费用和混凝土费用,支架高度的减小也大大的降低了高处坠落的安全风险,同时减少的支架搭设直接节约了工期。(The invention belongs to the field of building construction, and particularly relates to a construction process for a large-section frame column in a slope area, which comprises the following steps; s1: measuring the size of the slope, and calculating the sectional area, the number, the interval and the number of reinforcing bars of the concrete corbels according to the size of the slope; s2: according to the data calculated in S1, strength and rigidity calculation is carried out on the I-steel, the Bailey pieces and the distribution beam, the disturbance degree of the temporary structure is checked, and the pre-camber of the support is adjusted according to the disturbance degree, so that the problem of difficult construction of a high and large formwork support in a slope region is solved, and the quality and safety problems caused by vertical deformation of a full formwork support due to high backfill foundation settlement are solved; a large amount of support quantity that has reduced adopts leap type support simultaneously, and the support ground need not handle, also need not the hardened concrete, has also practiced thrift and has rolled, has traded fill-out equipment expense and concrete expense, and the reduction of support height has also great reduction the safety risk that the eminence falls, and the support that reduces simultaneously sets up directly has practiced thrift the time limit for a project.)

1. A construction process for a large-section frame column in a slope area is characterized by comprising the following steps of: the process comprises the following steps;

s1: measuring the size of the slope, and calculating the sectional area, the number, the interval and the number of reinforcing bars of the concrete corbels according to the size of the slope;

s2: according to the data calculated in S1, strength and rigidity calculation is carried out on the I-steel, the Bailey sheet and the distribution beam, the deflection of the temporary structure is checked, the pre-camber of the support is adjusted according to the deflection, and meanwhile, the integral stability calculation of the flexural member is carried out on the I-steel with larger span;

s3: according to the data calculated in S1 and S2, checking the bearing capacity and stability of the members such as the template, the main edge, the secondary edge, the upright rod and the like of the full formwork according to the traditional formwork calculation method, wherein the bearing capacity and stability are greater than the minimum specification and specification requirements;

s4: according to the data obtained by calculation in S1, S2 and S3, preparing I-steel, Bailey sheets, longitudinal bars, stirrups, beam plates and full framing corresponding to the data;

s5: arranging a bracket frame on the full support according to the calculation data, casting and molding the bracket frame into a concrete bracket, mounting I-shaped steel beams on the bracket, welding the I-shaped steel beams with steel plates or steel bars embedded in the bracket, and assembling a plurality of I-shaped steel beams;

s6: assembling bailey pieces on the ground, connecting two groups of bailey pieces into a whole by adopting a flower window, hoisting the bailey pieces to a concrete bracket, checking the installation positions of the bailey pieces, starting to lay an I-shaped steel distribution beam according with the standard, and fully paving bamboo boards after the I-shaped steel distribution beam is installed;

s7: after the bamboo strip plates are laid, installing full framing upright posts on the I-shaped steel distribution beam, and keeping safe longitudinal and transverse distances;

s8: the full hall upright post is calculated according to the beam slab height, selects suitable length to stagger the joint, lay the roof beam die block according to the roof beam bottom elevation, earlier ligature roof beam reinforcing bar, install the template again, reserve at the face and pass the material mouth, make things convenient for the transportation of support material, concrete is pour at last, accomplishes the pouring of frame.

2. The construction process for the large-section frame column in the slope area according to claim 1, wherein the construction process comprises the following steps: the concrete bracket is made of concrete with the same strength as the concrete of the full framing, and the top surface of the concrete bracket must be flat and embedded with a steel plate with the thickness of one centimeter.

3. The construction process for the large-section frame column in the slope area according to claim 2, wherein the construction process comprises the following steps: and the upper surface and the lower surface of the I-shaped steel beam are subjected to skip welding at an interval of one meter, and the length of a welding line is more than one meter at zero.

4. The construction process for the large-section frame column in the slope area according to claim 3, wherein the construction process comprises the following steps: the Bailey pieces are assembled to form the longitudinal beam, the Bailey pieces are connected with the Bailey pieces through ninety-centimeter standard flower stands, the Bailey pieces with the distance of forty-five centimeters are arranged at the position of the boundary beam and are connected through forty-five centimeter flower stands.

5. The construction process for the large-section frame column in the slope area according to claim 4, wherein the construction process comprises the following steps: the I-steel is bent ninety degrees through a steel bar with the diameter of twenty-five millimeters and welded with the Bailey sheet to form a stable framework.

6. The process of claim 5 for constructing a large-section frame column in a sloped area, wherein: the distribution beam and the Bailey sheet are connected and positioned in a U-shaped card mode, so that the Bailey sheet and the distribution beam form a whole.

7. The process of claim 6 for constructing a large-section frame column in a sloped area, wherein: the vertical transportation of the I-steel and the bailey sheets is carried out by a crane, the bailey sheets are assembled on the ground and then lifted to a specified position by the crane, and the lifting weight cannot exceed the specified weight of the crane.

8. The process of claim 7 for constructing a large-section frame column in a sloped area, wherein: bamboo slat face reserves and passes the material mouth, makes things convenient for the full hall of formula frame template, flitch, steel pipe allocation and transportation of bowl knot formula, and bailey piece adopts crane cooperation tower crane to demolish.

9. The process of claim 8 for constructing a large-section frame column in a sloped area, wherein: the Bailey sheet is rotationally fixed through a fastening device, and the fastening device comprises a rotating shaft (1), a rotating sleeve (2) and a first fastening piece (3); a limiting plate (4) is fixedly connected to the rotating shaft (1); the lower end of the rotating shaft (1) is provided with a force application head (5); two rotating sleeves (2) are rotatably sleeved on the rotating shaft (1) and the limiting plate (4); the lower end of the rotating sleeve (2) is detachably and fixedly connected with two holding sleeves (6) through a first fastener (3); a stress application groove (14) is formed in the holding sleeve (6) corresponding to the stress application head (5); a coil spring (13) is fixedly connected in the holding sleeve (6); the other end of the coil spring (13) is fixedly connected in the clamping groove (7); a limiting pin (8) is inserted in the clamping groove (7); a first threading hole (9) is formed in the rotating shaft (1); a stretching wire (10) is inserted in the first threading hole (9); the stretching thread (10) passes through the second threading hole (11) and is fixedly connected with a handle (12); the second threading hole (11) is formed in the holding sleeve (6); a nut groove (15) is formed in the rotating shaft (1); the lower end of the holding sleeve (6) is bonded with an anti-skid pad (16).

Technical Field

The invention relates to the field of building construction, in particular to a construction process for a large-section frame column in a slope area.

Background

The process refers to a method for processing raw materials and semi-finished products into finished products by users through various tools.

In engineering construction, the situation of erecting a support in a recently backfilled high backfill area is often encountered, the traditional method is to replace and fill a soft foundation, then carry out layered rolling, make foundation bearing capacity after rolling, and after the requirement is met, pour a concrete cushion layer and erect a full frame; if the foundation is backfill soil or a part with poor soil property, the template is installed from bottom to top according to the distance and the step pitch of the vertical rods to pour the concrete short retaining wall, and the ground is stepped so as to be convenient for erecting the support.

The traditional construction method is used for constructing a large-section frame in a slope area, and the risk of later-stage backfill settlement is very high due to layered backfill rolling, and the high-backfill area has low efficiency and safety because the backfill soil is high and the soil body has long-term natural settlement; therefore, a construction process for a large-section frame column in a slope area is provided for solving the problems.

Disclosure of Invention

In order to make up for the defects of the prior art and solve the problems that the risk of later-stage backfill settlement is very high due to the fact that a traditional construction method is used for constructing a large-section frame in a slope area, and the high backfill area has low efficiency and low safety due to the fact that the backfill height is high and the soil body naturally settles for a long time, the invention provides a construction process for a large-section frame column in the slope area.

The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to a construction process for a large-section frame column in a slope area, which comprises the following steps of;

s1: measuring the size of the slope, and calculating the sectional area, the number, the interval and the number of reinforcing bars of the concrete corbels according to the size of the slope;

s2: according to the data calculated in S1, strength and rigidity calculation is carried out on the I-steel, the Bailey sheet and the distribution beam, the deflection of the temporary structure is checked, the pre-camber of the support is adjusted according to the deflection, and meanwhile, the integral stability calculation of the flexural member is carried out on the I-steel with larger span;

s3: according to the data calculated in S1 and S2, checking the bearing capacity and stability of the members such as the template, the main edge, the secondary edge, the upright rod and the like of the full formwork according to the traditional formwork calculation method, wherein the bearing capacity and stability are greater than the minimum specification and specification requirements;

s4: according to the data obtained by calculation in S1, S2 and S3, preparing I-steel, Bailey sheets, longitudinal bars, stirrups, beam plates and full framing corresponding to the data;

s5: arranging a bracket frame on the full support according to the calculation data, casting and molding the bracket frame into a concrete bracket, mounting I-shaped steel beams on the bracket, welding the I-shaped steel beams with steel plates or steel bars embedded in the bracket, and assembling a plurality of I-shaped steel beams;

s6: assembling bailey pieces on the ground, connecting two groups of bailey pieces into a whole by adopting a flower window, hoisting the bailey pieces to a concrete bracket, checking the installation positions of the bailey pieces, starting to lay an I-shaped steel distribution beam according with the standard, and fully paving bamboo boards after the I-shaped steel distribution beam is installed;

s7: after the bamboo strip plates are laid, installing full framing upright posts on the I-shaped steel distribution beam, and keeping safe longitudinal and transverse distances;

s8: the full hall upright post is calculated according to the beam slab height, selects suitable length to stagger the joint, lay the roof beam die block according to the roof beam bottom elevation, earlier ligature roof beam reinforcing bar, install the template again, reserve at the face and pass the material mouth, make things convenient for the transportation of support material, concrete is pour at last, accomplishes the pouring of frame.

Preferably, the concrete bracket is made of concrete with the same strength as the concrete of the full framing, and the top surface of the concrete bracket is required to be flat and embedded with a steel plate with the thickness of one centimeter.

Preferably, the upper surface and the lower surface of the I-shaped steel beam are subjected to skip welding at an interval of one meter, and the length of a welding line is greater than one meter at zero.

Preferably, the Bailey pieces are assembled to form the longitudinal beam, the Bailey pieces are connected with the Bailey pieces through ninety-centimeter standard flower stands, the Bailey pieces with the distance of forty-five centimeters are arranged at the position of the edge beam and are connected through the forty-five centimeter flower stands.

Preferably, the I-steel is bent ninety degrees through a steel bar with the diameter of twenty-five millimeters and welded with the Bailey sheet to form a stable framework.

Preferably, the distribution beam and the bailey pieces are connected and positioned in a U-shaped card mode, so that the bailey pieces and the distribution beam are integrated.

Preferably, the I-steel and the bailey sheets are vertically transported by a crane, the bailey sheets are assembled on the ground and then lifted to a specified position by the crane, and the lifting weight does not exceed the specified weight of the crane.

Preferably, the bamboo slat board reserves the biography material mouth, makes things convenient for the full hall of formula frame template of bowl knot formula, flitch, steel pipe to transfer, and the bailey piece adopts crane cooperation tower crane to demolish.

Preferably, the Bailey pieces are rotationally fixed through a fastening device, and the fastening device comprises a rotating shaft, a rotating sleeve and a first fastening piece; a limiting plate is fixedly connected to the rotating shaft; the lower end of the rotating shaft is provided with a force application head; two rotating sleeves are rotatably sleeved on the rotating shaft and the limiting plate; the lower end of the rotating sleeve is detachably and fixedly connected with two holding sleeves through a first fastener; a stress application groove is formed in the holding sleeve corresponding to the stress application head; a coil spring is fixedly connected in the holding sleeve; the other end of the coil spring is fixedly connected in the clamping groove; a limiting pin is inserted in the clamping groove; the rotating shaft is provided with a first threading hole; a stretching wire is inserted into the first threading hole; the stretching wire penetrates through the second threading hole and is fixedly connected with a handle; the second threading hole is formed in the holding sleeve; the rotating shaft is provided with a nut groove; the lower end of the holding sleeve is bonded with an anti-slip pad.

The invention has the advantages that:

1. according to the invention, through the design of the construction process, the problem of difficult construction of the high and large formwork support in the slope region is solved, and the quality and safety problems caused by vertical deformation of the full formwork support due to high backfill foundation settlement are solved;

2. the invention greatly reduces the using amount of the support through the design of the construction process, simultaneously adopts the crossing type support, does not need to process the foundation of the support, does not need to harden the concrete, also saves the cost of rolling and replacing and filling equipment and the cost of the concrete, greatly reduces the safety risk of falling from a high place due to the reduction of the height of the support, and simultaneously directly saves the construction period due to the reduced support erection.

3. Through the design of the construction process, compared with the traditional construction process, the construction technology of the construction method has higher safety and more reliable quality, the cast and molded appearance of the concrete better meets the requirement of design specifications, and the requirements of structural safety and use functions are ensured; the construction method is simple and convenient to operate, easy to master and easy to ensure the construction quality.

4. According to the invention, through the design of the construction process, the support is overhead, the high backfill foundation and the slope backfill soil settlement below the support cannot influence the full support, the occurrence of major quality accidents such as beam and plate structure lower disturbance, section deformation and the like caused by support deformation caused by foundation settlement is avoided, the overhead crossing type support is adopted, the height of the support is lower, the operation is convenient, the formwork can be reinforced by workers, the problem of formwork installation can be checked, and the forming quality of a cast-in-place structure can be ensured.

5. According to the invention, through the design of the construction process, the material consumption is sharply reduced, the full framing is reduced by 70%, the material consumption is reduced, the manpower for building the bracket is reduced, the labor for building is reduced, the construction period is saved, the construction period is shortened, and the construction period claim caused by exceeding the construction period is avoided.

6. Through the design of the construction process, the support is low in height and convenient to operate, is beneficial to binding of reinforcing steel bars and reinforcing of a template by workers, ensures the molding quality of a cast-in-place structure, correspondingly reduces the cost for modifying and repairing concrete, and saves the cost.

7. According to the invention, through the design of the construction process, the labor cost is saved, the consumption of the bowl buckle frame material is reduced, the manpower for erecting the bracket is reduced, the corresponding labor cost is reduced, the consumption of the material is reduced in the construction process, the consumption of the steel pipe is reduced, and the carbon emission is reduced.

8. According to the invention, through the design of the construction process, the bracket is used as a fulcrum of the spanning type bracket, the height of the bracket is only 3m after the bracket is erected, and after the bamboo strip plate is fully paved on the working face, the operation is convenient for workers, the safety risk is reduced, and the steel plate net surrounding the bracket body is added for blocking, so that the construction can be closed, and the economic compensation and the casualties caused by potential safety hazards or accidents are reduced.

9. According to the invention, through the design of the construction process, after the bamboo strip plate is fully paved on the working face, the operation is convenient for workers, the efficiency is greatly improved by erecting the bracket and installing the subsequent template, the construction process flow is optimized, the construction speed is improved, the quality is guaranteed, the rework time is reduced, and the working efficiency is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

FIG. 1 is a schematic view of the process steps of the first embodiment;

FIG. 2 is a schematic sectional view of the first embodiment in front view;

FIG. 3 is a schematic top view of a cross-sectional structure according to a first embodiment;

FIG. 4 is a perspective view of a part of the first embodiment;

fig. 5 is a front view of the first embodiment.

In the figure: 1. a rotating shaft; 2. rotating the sleeve; 3. a first fastener; 4. a limiting plate; 5. a force application head; 6. gripping the sleeve; 7. a clamping groove; 8. a spacing pin; 9. a first threading hole; 10. stretching the wire; 11. a second threading hole; 12. a handle; 13. a coil spring; 14. a stress application groove; 15. a nut groove; 16. a non-slip mat.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example one

Referring to fig. 1-5, a construction process for a large-section frame column in a slope area includes the following steps;

s1: measuring the size of the slope, and calculating the sectional area, the number, the interval and the number of reinforcing bars of the concrete corbels according to the size of the slope;

s2: according to the data calculated in S1, strength and rigidity calculation is carried out on the I-steel, the Bailey sheet and the distribution beam, the deflection of the temporary structure is checked, the pre-camber of the support is adjusted according to the deflection, and meanwhile, the integral stability calculation of the flexural member is carried out on the I-steel with larger span;

s3: according to the data calculated in S1 and S2, checking the bearing capacity and stability of the members such as the template, the main edge, the secondary edge, the upright rod and the like of the full formwork according to the traditional formwork calculation method, wherein the bearing capacity and stability are greater than the minimum specification and specification requirements;

s4: according to the data obtained by calculation in S1, S2 and S3, preparing I-steel, Bailey sheets, longitudinal bars, stirrups, beam plates and full framing corresponding to the data;

s5: arranging a bracket frame on the full support according to the calculation data, casting and molding the bracket frame into a concrete bracket, mounting I-shaped steel beams on the bracket, welding the I-shaped steel beams with steel plates or steel bars embedded in the bracket, and assembling a plurality of I-shaped steel beams;

s6: assembling bailey pieces on the ground, connecting two groups of bailey pieces into a whole by adopting a flower window, hoisting the bailey pieces to a concrete bracket, checking the installation positions of the bailey pieces, starting to lay an I-shaped steel distribution beam according with the standard, and fully paving bamboo boards after the I-shaped steel distribution beam is installed;

s7: after the bamboo strip plates are laid, installing full framing upright posts on the I-shaped steel distribution beam, and keeping safe longitudinal and transverse distances;

s8: the full hall upright post is calculated according to the beam slab height, selects suitable length to stagger the joint, lay the roof beam die block according to the roof beam bottom elevation, earlier ligature roof beam reinforcing bar, install the template again, reserve at the face and pass the material mouth, make things convenient for the transportation of support material, concrete is pour at last, accomplishes the pouring of frame.

The concrete bracket is made of concrete with the same strength as the concrete of the full framing, and the top surface of the concrete bracket must be flat and embedded with a steel plate with the thickness of one centimeter.

And the upper surface and the lower surface of the I-shaped steel beam are subjected to skip welding at an interval of one meter, and the length of a welding line is more than one meter at zero.

The Bailey pieces are assembled to form the longitudinal beam, the Bailey pieces are connected with the Bailey pieces through ninety-centimeter standard flower stands, the Bailey pieces with the distance of forty-five centimeters are arranged at the position of the boundary beam and are connected through forty-five centimeter flower stands.

The I-steel is bent ninety degrees through a steel bar with the diameter of twenty-five millimeters and welded with the Bailey sheet to form a stable framework.

The distribution beam and the Bailey sheet are connected and positioned in a U-shaped card mode, so that the Bailey sheet and the distribution beam form a whole.

The vertical transportation of the I-steel and the bailey sheets is carried out by a crane, the bailey sheets are assembled on the ground and then lifted to a specified position by the crane, and the lifting weight cannot exceed the specified weight of the crane.

Bamboo slat face reserves and passes the material mouth, makes things convenient for the full hall of formula frame template, flitch, steel pipe allocation and transportation of bowl knot formula, and bailey piece adopts crane cooperation tower crane to demolish.

The Bailey sheet is rotationally fixed through a fastening device, and the fastening device comprises a rotating shaft 1, a rotating sleeve 2 and a first fastening piece 3; a limiting plate 4 is fixedly connected to the rotating shaft 1; the lower end of the rotating shaft 1 is provided with a force application head 5; two rotating sleeves 2 are rotatably sleeved on the rotating shaft 1 and the limiting plate 4; the lower end of the rotating sleeve 2 is detachably and fixedly connected with two holding sleeves 6 through a first fastener 3; a stress application groove 14 is formed in the holding sleeve 6 corresponding to the stress application head 5; a coil spring 13 is fixedly connected in the holding sleeve 6; the other end of the coil spring 13 is fixedly connected in the clamping groove 7; a limit pin 8 is inserted in the clamping groove 7; a first threading hole 9 is formed in the rotating shaft 1; a stretching wire 10 is inserted into the first threading hole 9; the stretching wire 10 passes through the second threading hole 11 and is fixedly connected with a handle 12; the second threading hole 11 is formed in the holding sleeve 6; the rotating shaft 1 is provided with a nut groove 15; the lower end of the holding sleeve 6 is bonded with an anti-skid pad 16; when the device works, two symmetrical rotating sleeves 2 are sleeved on a rotating shaft 1 through bolts, then a holding sleeve 6 is rotatably sleeved on the rotating shaft 1 through the bolts, then the rotating sleeves 2 are fixedly connected with the holding sleeve 6 through a first fastener 3, at the moment, a coil spring 13 fixedly connected in a clamping groove 7 is fixedly connected in the holding sleeve 6 and is fixed through a limiting pin 8, a tensile line 10 penetrates through a first threading hole 9 and is wound on the rotating shaft 1, the other end penetrates through a second threading hole 11 and is fixedly connected with a handle 12, then the other holding sleeve 6 is fixedly connected with the first holding sleeve 6 through the bolts, the final assembly is completed, when the device is used, the head of the bolt is inserted into a nut groove 15, the holding rotating sleeve 2 moves to the position of a threaded hole, at the moment, the handle 12 is held and is stretched, so that the rotating shaft 1 rotates to drive the bolt to rotate and be meshed with the threaded hole, when the stretching is not fixed, the external force applying rod and the force applying head 5 can be connected in a sleeved mode to rotate, and final thread fixing is completed.

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed.