Installation control system and installation construction method for cast-in-situ concrete hollow floor system combined plastic mold box

文档序号:1283668 发布日期:2020-08-28 浏览:8次 中文

阅读说明:本技术 一种现浇砼空心楼盖组合塑料模盒安装控制系统及安装施工方法 (Installation control system and installation construction method for cast-in-situ concrete hollow floor system combined plastic mold box ) 是由 盛峰 孙尚国 谭启水 刘文豪 胡柏 于 2020-06-05 设计创作,主要内容包括:本发明属于建筑技术领域,公开了一种现浇砼空心楼盖组合塑料模盒安装控制系统及安装施工方法,按照设计要求,现浇砼空心楼盖结构中梁、板模板;根据施工图安置预埋水、电、暖、管线;按照结构设计图,将底板钢筋放在横向或纵向肋梁上,现浇砼空心楼盖的下部底板钢筋;根据设定的抗浮点,按照工程图纸组装塑料模盒组装;塑料模盒摆放完成后,检查模盒有无破损、位移。本发明楼板支模速度加快,支模工期短,模板大部分整块拼装,割锯较少,周转次数增加,降低成本;密肋梁规格统一,钢筋加工制作安装速度较快;拆模时操作简便;同时本发明有效降低了自重及整体上部结构的自重,增加了基础承载的安全性和可靠性。(The invention belongs to the technical field of buildings, and discloses a control system and a construction method for installing a cast-in-situ concrete hollow floor system combined plastic mold box, wherein a center sill and a slab template of a cast-in-situ concrete hollow floor system structure are cast according to design requirements; arranging pre-buried water, electricity, heating and pipeline according to a construction drawing; according to the structural design drawing, the bottom plate reinforcing steel bars are placed on the transverse or longitudinal rib beams, and the lower bottom plate reinforcing steel bars of the concrete hollow floor are cast in situ; assembling the plastic mold box according to the set anti-floating point and the engineering drawing; and (4) after the plastic mold box is placed, checking whether the mold box is damaged or not and detecting displacement. The floor formwork supporting speed is accelerated, the formwork supporting construction period is short, most of the formwork is integrally assembled, cutting saws are few, the turnover frequency is increased, and the cost is reduced; the specification of the multi-ribbed beam is uniform, and the processing, manufacturing and mounting speed of the steel bars is high; the operation is simple and convenient when the mold is removed; meanwhile, the invention effectively reduces the dead weight and the dead weight of the whole upper structure, and increases the safety and the reliability of the basic bearing.)

1. A cast-in-place concrete hollow floor system combined plastic mold box installation and construction method is characterized in that the cast-in-place concrete hollow floor system combined plastic mold box installation and construction method comprises the following steps:

step one, according to the design requirement, the concrete hollow floor structure middle beam, the slab template of cast-in-place; arranging pre-buried water, electricity, heat and pipelines according to a construction drawing, coating a layer of epoxy resin glue solution on the surfaces of the water, electricity, heat and pipelines and the trunking, then carrying out closed embedding treatment on the trunking by adopting epoxy mortar, determining the positions and the number of reserved holes according to a design drawing so as to determine the trend of the pre-buried pipelines, and measuring and setting out the pre-buried pipelines and the reserved holes in a later subsection manner;

step two, according to the structural design drawing, placing the bottom plate reinforcing steel bars on the transverse or longitudinal rib beams, casting the bottom plate reinforcing steel bars on the concrete hollow floor in situ, binding the frame beams and the rib beam reinforcing steel bars on the bottom ribs of the rib beams, casting concrete ribs between the transverse or longitudinal rib beams in situ to form a cast-in-situ concrete upper plate on the module, forming a cast-in-situ concrete lower plate under the module, and casting the concrete in situ to adopt self-compaction casting for resisting floating points;

step three, assembling the plastic mold box according to the set anti-floating point and the engineering drawing, wherein a plurality of openings are formed in the upper parts of two opposite side surfaces of the plastic mold box, a movable inserting plate is inserted into each opening, a supporting edge extends outwards from the lower edge of each opening, the supporting edges are mutually assembled, and the assembled plastic mold box is fixed by using a thin iron wire bound with a reinforcing steel bar after the assembly is finished;

step four, checking whether the mold box is damaged or not and whether the mold box is displaced or not after the plastic mold box is placed; fixing main rib steel bars and side rib steel bars on a die box through steel wires, symmetrically installing anchoring assemblies on bottom dies around the hollow die box, binding upper cast-in-place plate steel bars, butting binding belts on the anchoring assemblies in pairs, binding and fastening, and vibrating cast-in-place plate concrete;

step five, building a construction access road, erecting a concrete pump pipe, and performing hidden project acceptance; and simultaneously pouring concrete into the ribbed beams, vibrating the ribbed beams and the box body by using the vibrating rods, curing the concrete and removing the template.

2. The method for installing and constructing a cast-in-place concrete hollow floor system composite plastic mold box as claimed in claim 1, wherein in the step one, the arch height of the beam and slab mold in the cast-in-place concrete hollow floor system structure is 2/1000-3/1000 of the span; and a hollow groove is formed in the mold cover, a supporting device is fixedly connected to the inner wall of the hollow groove, the supporting firmness of the template is checked, and the splicing is tight.

3. The method for installing and constructing a plastic mold box for a cast-in-place hollow floor system according to claim 1, wherein before the third step, the construction of the plastic mold box is performed, and the machined mold box is checked and accepted, and the plastic mold box is precisely positioned and fixed according to the construction drawing, and the steel bars placed in the plastic mold box are welded and fixed, and then the mold box is assembled by electric welding according to indentation folding; checking the appearances of the mold boxes one by one after the mold boxes are formed, and then assembling the mold boxes into a steel net cage according to a construction drawing; and issuing a test report and a certificate after the test is qualified.

4. The method for installing and constructing a cast-in-place concrete hollow floor slab composite plastic mold box according to claim 1, wherein in the third step, the step of setting the anti-floating point comprises the following steps:

1 reinforcing steel bar with the length of phi 14mm is placed on the axis of each row of plastic mould boxes to be used as a plastic mould box jacking reinforcing steel bar; drilling holes in the bottom template according to the position of the jacking steel bar, drilling holes with the drilling depth of 7mm at the position close to the center of 45cm of the two side templates, wherein the distance is 600mm or 550mm, then penetrating a U-shaped iron wire No. 16, fixing the lower end of the iron wire below the template by using waste steel bar heads with the length of about 200mm, lengthening the length by 300mm according to the thickness of the template and the thickness of the bottom template, and fixing the length, temporarily fixing the upper end on a rib beam or a bottom plate steel bar, and fixing the jacking steel bar after the combined plastic film box is installed.

5. The method for installing and constructing a plastic mold box for a cast-in-place hollow floor system of claim 1, wherein in the fourth step, the installation of the plastic mold box comprises:

placing the plastic mold box between the frame beam and the rib beam according to the position of the engineering drawing;

after the reinforcing steel bars of the bottom plate are bound, drilling two phi 12 holes on the bottom plate at 1/2 of the rib beam side mold box, and hanging a 14# iron wire to the upper side of the rib beam;

a protective layer cushion block is arranged on the bottom plate; and placing a steel bar horse at the lower part of the mold box, and adjusting the placing position to be consistent with the engineering drawing.

6. The method for installing and constructing a cast-in-place concrete hollow floor slab composite plastic mold box according to claim 1, wherein in the fourth step, the method for fixing the mold box comprises the following steps:

and (3) drilling holes to enable reserved 14# iron wires to penetrate through the bottom template to connect the plastic die box jacking reinforcing steel bars with reinforcing steel bar heads below the bottom template, fixing the distance between iron wire fixing points on the combined plastic die box jacking reinforcing steel bars, and drilling holes on two die box sides, namely two sides of the rib beam, by taking two die boxes as a group of 1 meter.

7. The method for installing and constructing a cast-in-place concrete hollow floor slab composite plastic mold box according to claim 1, wherein in the fourth step, the step of binding the upper cast-in-place slab reinforcing steel bars comprises:

when the upper cast-in-place slab steel bars are bidirectional slabs, the lower steel bars are arranged below the upper steel bars of the rib beams, and the steel bars on the upper part of the slabs are arranged above the upper steel bars of the beams;

when the single-layer bidirectional plate is placed below the rib beam.

8. The method for installing and constructing a cast-in-place concrete hollow floor system composite plastic mold box according to claim 1, wherein in the fifth step, the concrete curing and the template removal comprise:

firstly, watering and curing for more than 14 days, and dismantling a bottom die according to the regulation after the curing period; and (4) removing the template according to the principle that the center spreads to the periphery.

9. The method for installing and constructing a cast-in-place concrete hollow floor slab composite plastic mold box as claimed in claim 1, wherein the method for installing and constructing a cast-in-place concrete hollow floor slab composite plastic mold box further comprises:

and related load parameters are acquired in real time in the construction process, and when the load exceeds a normal threshold value, an alarm is automatically given.

10. A system for controlling the installation of a composite plastic mold box for building a hollow floor by casting concrete according to the method for constructing a composite plastic mold box for building a hollow floor by casting concrete of claims 1 to 9, wherein the system for controlling the installation of a composite plastic mold box for building a hollow floor by casting concrete comprises:

the scanning and recording module is used for scanning engineering drawings and acquiring the specifications, the number and other relevant parameters of the relevant plastic mold box and the components thereof;

the load parameter acquisition module is used for acquiring current load parameters;

the template output module is used for designing a beam template and a slab template in the cast-in-place concrete hollow floor structure according to requirements;

the construction preparation module is used for setting pre-buried water, electricity, heating and pipelines based on the drawing of the engineering drawing;

the material checking module is used for checking whether the plastic mould box and the components thereof are in a wall-dead inspection report and a qualification certificate; checking whether the specification and the quantity of the plastic mold box and the components thereof are accurate or not;

the construction module is used for installing and constructing the composite plastic mold box for the cast-in-place hollow floor system;

the alarm module is used for giving an alarm when the load parameter exceeds a normal value;

and the acceptance module is used for checking whether the construction meets the standard.

Technical Field

The invention belongs to the technical field of cast-in-situ concrete hollow floor composite plastic mold box construction, and particularly relates to a cast-in-situ concrete hollow floor composite plastic mold box installation control system and an installation construction method.

Background

The cast-in-place concrete hollow flat slab structure is an extension of a flat slab structure system, originates from Germany, is firstly proposed by the front Federal German engineer Leoplod Muller, is then called a 'B-Z system', and originates from Germany honeycomb type concrete hollow slabs. Then, GFranz professor carries out experimental research on the hollow flat slab, and provides a calculation method for designing a hollow flat slab structure by adopting a solid flat slab with equivalent rigidity under the action of static load. At the end of the last sixties of the century, american engineers edgarh.hendle also proposed a honeycomb type flat slab (hellularflat plate) which is a hollow flat slab in the form of a filling member made of block-packed foamed plastic and has a large hollow rate, but they only intensively studied the construction method of the structure and did not further carry out experimental study on the design theory, and the construction of the hollow flat slab is relatively inconvenient because the foamed plastic is used as the filling member, so that the slab form is not well applied and developed.

At abroad, according to the size of the hollow portion of hollow slab, divide into two kinds of main types to hollow slab, the hollow rate is less and mostly the pipe and be called VoidedSlab, and the hollow floor that is more and mostly the cuboid cavity is called CellularSlab, the road deck board of the multi-purpose bridge structure that is used as. With the increasingly wide application of the hollow slab, many foreign scholars propose an analysis method based on the equivalent slab. Crisfield and Twylow (1971) propose a solution for honeycomb structures by means of the finite element method, taking into account the transverse Poisson ratio effect. In 1982, the hollow slab model containing the unidirectional circular holes is made of epoxy resin by gelitt and la. clark in the uk, an approximate formula of the rigidity is obtained by finite element analysis, and the reliability of the formula is proved by test verification.

In recent years, Chinese engineers have improved the filling member of the floor system, and the light, high-strength and hollow thin-wall pipe and the thin-wall box are adopted, so that the construction difficulty is greatly reduced, and the hollow flat floor system is applied domestically. At present, cast-in-place concrete circular tube type hollow flat slab floors taking GBF high-strength thin-wall tubes as filling members are listed as national-level torch plan projects and key popularization projects of scientific and technological achievements of Ministry of construction. In recent years, certain progress is made in engineering application of the hollow flat slab, and some practical calculation methods are provided. Pengli and Huang Vietnam of the Hunan engineering academy discuss the structural arrangement, construction structure and other aspects of a certain middle-school scientific building adopting a GBF round tube type hollow flat slab; the simplified calculation method of the circular tube type hollow flat slab is also provided by combining the engineering practice;

the technology of cast-in-place concrete hollow floor has been developed for decades at home and abroad. The force characteristics, the structure and the structure of the cast-in-situ hollow floor system with the embedded tubular inner mold are researched in the concrete professional works in the seventh and eighties of the last century abroad. The hollow floor system technology can be widely applied to buildings with large span, large space and large load. Compared with the traditional technology, the concrete quantity can be saved, and the comprehensive cost is reduced. The system is mainly suitable for projects such as schools, bridges, reading rooms, office buildings, markets, plants, underground parking lots, large-compartment houses and the like. The development trend is good, the prospect is infinite, the method is closely related to the life of people, and the method accords with the national industrial policy. The popularization and promotion of the achievement can generate immeasurable comprehensive benefits. Buildings of tens of millions of square meters are constructed in the whole country by adopting the structural system.

In summary, the problems of the prior art are as follows: the cast-in-place concrete hollow floor has poor molding quality; the plastic mold box is not sufficient to support impact loads and concentrated loads; the existing combined plastic mold box can easily float upwards, so that local concrete bulges.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides a control system for installing a cast-in-place concrete hollow floor composite plastic mold box and an installation construction method.

The invention is realized in this way, the construction method for installing the cast-in-place concrete hollow floor system composite plastic mold box includes the following steps:

step one, according to the design requirement, the concrete hollow floor structure middle beam, the slab template of cast-in-place; arranging pre-buried water, electricity, heat and pipelines according to a construction drawing, coating a layer of epoxy resin glue solution on the surfaces of the water, electricity, heat and pipelines and the trunking, then carrying out closed embedding treatment on the trunking by adopting epoxy mortar, determining the positions and the number of reserved holes according to a design drawing so as to determine the trend of the pre-buried pipelines, and measuring and setting out the pre-buried pipelines and the reserved holes in a later subsection manner;

step two, according to the structural design drawing, placing the bottom plate reinforcing steel bars on the transverse or longitudinal rib beams, casting the bottom plate reinforcing steel bars on the concrete hollow floor in situ, binding the frame beams and the rib beam reinforcing steel bars on the bottom ribs of the rib beams, casting concrete ribs between the transverse or longitudinal rib beams in situ to form a cast-in-situ concrete upper plate on the module, forming a cast-in-situ concrete lower plate under the module, and casting the concrete in situ to adopt self-compaction casting for resisting floating points;

step three, assembling the plastic mold box according to the set anti-floating point and the engineering drawing, wherein a plurality of openings are formed in the upper parts of two opposite side surfaces of the plastic mold box, a movable inserting plate is inserted into each opening, a supporting edge extends outwards from the lower edge of each opening, the supporting edges are mutually assembled, and the assembled plastic mold box is fixed by using a thin iron wire bound with a reinforcing steel bar after the assembly is finished;

step four, checking whether the mold box is damaged or not and whether the mold box is displaced or not after the plastic mold box is placed; fixing main rib steel bars and side rib steel bars on a die box through steel wires, symmetrically installing anchoring assemblies on bottom dies around the hollow die box, binding upper cast-in-place plate steel bars, butting binding belts on the anchoring assemblies in pairs, binding and fastening, and vibrating cast-in-place plate concrete;

step five, building a construction access road, erecting a concrete pump pipe, and performing hidden project acceptance; and simultaneously pouring concrete into the ribbed beams, vibrating the ribbed beams and the box body by using the vibrating rods, curing the concrete and removing the template.

Further, in the step one, the arch rising height of the beam and the slab template in the cast-in-place concrete hollow floor structure is 2/1000-3/1000 of the span; and a hollow groove is formed in the mold cover, a supporting device is fixedly connected to the inner wall of the hollow groove, the supporting firmness of the template is checked, and the splicing is tight.

Further, before the third step, a plastic mould box is constructed, the machined mould box is checked and accepted, the plastic mould box is positioned and fixed accurately according to a construction drawing, reinforcing steel bars placed in the plastic mould box are welded and fixed, and the plastic mould box is assembled into a mould box by electric welding according to indentation folding; checking the appearances of the mold boxes one by one after the mold boxes are formed, and then assembling the mold boxes into a steel net cage according to a construction drawing; and issuing a test report and a certificate after the test is qualified.

Further, in step three, the setting the anti-floating point includes:

1 reinforcing steel bar with the length of phi 14mm is placed on the axis of each row of plastic mould boxes to be used as a plastic mould box jacking reinforcing steel bar; drilling holes in the bottom template according to the position of the jacking steel bar, drilling holes with the drilling depth of 7mm at the position close to the center of 45cm of the two side templates, wherein the distance is 600mm or 550mm, then penetrating a U-shaped iron wire No. 16, fixing the lower end of the iron wire below the template by using waste steel bar heads with the length of about 200mm, lengthening the length by 300mm according to the thickness of the template and the thickness of the bottom template, and fixing the length, temporarily fixing the upper end on a rib beam or a bottom plate steel bar, and fixing the jacking steel bar after the combined plastic film box is installed.

Further, in step four, the plastic mold box installation comprises:

placing the plastic mold box between the frame beam and the rib beam according to the position of the engineering drawing;

after the reinforcing steel bars of the bottom plate are bound, drilling two phi 12 holes on the bottom plate at 1/2 of the rib beam side mold box, and hanging a 14# iron wire to the upper side of the rib beam;

a protective layer cushion block is arranged on the bottom plate; and placing a steel bar horse at the lower part of the mold box, and adjusting the placing position to be consistent with the engineering drawing.

Further, in the fourth step, the mold box fixing method includes:

and (3) drilling holes to enable reserved 14# iron wires to penetrate through the bottom template to connect the plastic die box jacking reinforcing steel bars with reinforcing steel bar heads below the bottom template, fixing the distance between iron wire fixing points on the combined plastic die box jacking reinforcing steel bars, and drilling holes on two die box sides, namely two sides of the rib beam, by taking two die boxes as a group of 1 meter.

Further, in step four, cast-in-place slab reinforcing steel includes on ligature upper portion:

when the upper cast-in-place slab steel bars are bidirectional slabs, the lower steel bars are arranged below the upper steel bars of the rib beams, and the steel bars on the upper part of the slabs are arranged above the upper steel bars of the beams;

when the single-layer bidirectional plate is placed below the rib beam.

Further, in the fifth step, the concrete curing and formwork dismantling includes:

firstly, watering and curing for more than 14 days, and dismantling a bottom die according to the regulation after the curing period; and (4) removing the template according to the principle that the center spreads to the periphery.

Further, the construction method for installing the cast-in-place concrete hollow floor system combined plastic mold box also comprises the following steps:

and related load parameters are acquired in real time in the construction process, and when the load exceeds a normal threshold value, an alarm is automatically given.

Another object of the present invention is to provide a system for controlling the installation of a composite plastic mold box for building a hollow floor by applying the method, wherein the system comprises:

the scanning and recording module is used for scanning engineering drawings and acquiring the specifications, the number and other relevant parameters of the relevant plastic mold box and the components thereof;

the load parameter acquisition module is used for acquiring current load parameters;

the template output module is used for designing a beam template and a slab template in the cast-in-place concrete hollow floor structure according to requirements;

the construction preparation module is used for setting pre-buried water, electricity, heating and pipelines based on the drawing of the engineering drawing;

the material checking module is used for checking whether the plastic mould box and the components thereof are in a wall-dead inspection report and a qualification certificate; checking whether the specification and the quantity of the plastic mold box and the components thereof are accurate or not;

the construction module is used for installing and constructing the composite plastic mold box for the cast-in-place hollow floor system;

the alarm module is used for giving an alarm when the load parameter exceeds a normal value;

and the acceptance module is used for checking whether the construction meets the standard.

The invention has the advantages and positive effects that: the plastic mould box provided by the invention must be placed between the frame beam and the rib beam strictly according to the requirements on the drawing, after the reinforcing steel bars of the bottom plate are bound, two phi 12 holes are drilled on the bottom plate at 1/2 of the mould box at the side of the rib beam, and an iron wire of 14# is strung in and hung on the rib beam, (for later use when the mould box is reinforced, the step is omitted when a single box is used) and a protective layer cushion block is placed below the bottom plate. The steel bar horse is placed under the mould box, and when the position does not accord with the drawing, the steel bar horse can be properly adjusted; the emphasis here is that the lower part of the mould box is placed with cushion blocks or reinforced horses according to the requirements when the mould box is placed, thus ensuring the effective thickness of the reinforced concrete of the lower bottom plate of the cast-in-situ concrete hollow floor; after the plastic mold box for the construction of the hollow floor system to be poured with concrete is placed, the mold box is checked for damage and displacement, and the molding quality of the cast-in-place concrete hollow floor system is improved.

The floor formwork supporting speed is accelerated, the formwork supporting construction period is short, most of the formwork is integrally assembled, cutting saws are few, the turnover frequency is increased, and the cost is reduced; the specification of the multi-ribbed beam is uniform, and the processing, manufacturing and mounting speed of the steel bars is high; the operation is simple and convenient when the mold is removed; meanwhile, the invention effectively reduces the dead weight and the dead weight of the whole upper structure, increases the safety and the reliability of the bearing of the foundation, and has strong integral rigidity and good anti-seismic performance.

Drawings

FIG. 1 is a flow chart of the construction method for installing the cast-in-situ concrete hollow building cover composite plastic mold box provided by the embodiment of the invention.

FIG. 2 is a schematic structural view of a system for controlling the installation of a composite plastic mold box for a cast-in-situ concrete hollow floor system provided by the present invention.

In the figure: 1. a scanning and inputting module; 2. a load parameter acquisition module; 3. a template output module; 4. a construction preparation module; 5. a material collation module; 6. constructing a module; 7. an alarm module; 8. and an acceptance module.

FIG. 3 is a drawing of a mold box attachment provided by the practice of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The application of the principles of the present invention will now be further described with reference to the accompanying drawings.

As shown in FIG. 1, the method for installing and constructing a composite plastic mold box for a cast-in-place hollow floor slab, provided by the embodiment of the invention, comprises the following steps:

s101, pouring a middle beam and a plate template of the concrete hollow floor structure in situ according to design requirements; arranging pre-buried water, electricity, heat and pipelines according to a construction drawing, coating a layer of epoxy resin glue solution on the surfaces of the water, electricity, heat and pipelines and the trunking, then carrying out closed embedding treatment on the trunking by adopting epoxy mortar, determining the positions and the number of reserved holes according to a design drawing so as to determine the trend of the pre-buried pipelines, and measuring and setting out the pre-buried pipelines and the reserved holes in a later subsection manner;

s102, according to a structural design drawing, placing bottom plate reinforcing steel bars on a transverse or longitudinal rib beam, casting bottom plate reinforcing steel bars of the concrete hollow floor in situ, binding frame beams and rib beam reinforcing steel bars on bottom ribs of the rib beam, casting concrete ribs between the transverse or longitudinal rib beams in situ to form a cast-in-situ concrete upper plate on a module, forming a cast-in-situ concrete lower plate under the module, and casting the concrete in situ to adopt self-compaction casting for resisting floating points;

s103, assembling the plastic mold box according to the set floating point resistance according to engineering drawings, wherein a plurality of openings are formed in the upper parts of two opposite side surfaces of the plastic mold box, a movable inserting plate is inserted into each opening, a supporting edge extends outwards from the lower edge of each opening, the supporting edges are mutually assembled, and the assembled plastic mold box is fixed by using a thin iron wire bound with a steel bar after the assembly is finished;

s104, after the plastic mold boxes are placed, detecting whether the mold boxes are damaged or not and detecting displacement; fixing main rib steel bars and side rib steel bars on a die box through steel wires, symmetrically installing anchoring assemblies on bottom dies around the hollow die box, binding upper cast-in-place plate steel bars, butting binding belts on the anchoring assemblies in pairs, binding and fastening, and vibrating cast-in-place plate concrete;

s105, building a construction access road, erecting a concrete pump pipe, and performing concealed project acceptance; and simultaneously pouring concrete into the ribbed beams, vibrating the ribbed beams and the box body by using the vibrating rods, curing the concrete and removing the template.

In the step S101, the arch camber of the beam and the slab template in the cast-in-place concrete hollow floor structure provided by the embodiment of the invention is 2/1000-3/1000 of the span; and the template is firmly supported and tightly spliced.

Before step S103, the plastic mold box is processed and constructed accordingly, and the processed mold box is checked and accepted to issue a check report and a certificate.

In step S103, the setting of the anti-floating point provided by the embodiment of the present invention includes:

1 reinforcing steel bar with the length of phi 14mm is placed on the axis of each row of plastic mould boxes to be used as a plastic mould box jacking reinforcing steel bar; drilling holes in the bottom template according to the position of the jacking steel bar, drilling holes with the drilling depth of 7mm at the position close to the center of 45cm of the two side templates, wherein the distance is 600mm or 550mm, then penetrating a U-shaped iron wire No. 16, fixing the lower end of the iron wire below the template by using waste steel bar heads with the length of about 200mm, lengthening the length by 300mm according to the thickness of the template and the thickness of the bottom template, and fixing the length, temporarily fixing the upper end on a rib beam or a bottom plate steel bar, and fixing the jacking steel bar after the combined plastic film box is installed.

In step S104, the plastic mold box mounting provided in the embodiment of the present invention includes:

placing the plastic mold box between the frame beam and the rib beam according to the position of the engineering drawing;

after the reinforcing steel bars of the bottom plate are bound, drilling two phi 12 holes on the bottom plate at 1/2 of the rib beam side mold box, and hanging a 14# iron wire to the upper side of the rib beam;

a protective layer cushion block is arranged on the bottom plate; and placing a steel bar horse at the lower part of the mold box, and adjusting the placing position to be consistent with the engineering drawing.

In step S104, the mold box fixing method provided in the embodiment of the present invention includes:

and (3) drilling holes to enable reserved 14# iron wires to penetrate through the bottom template to connect the plastic die box jacking reinforcing steel bars with reinforcing steel bar heads below the bottom template, fixing the distance between iron wire fixing points on the combined plastic die box jacking reinforcing steel bars, and drilling holes on two die box sides, namely two sides of the rib beam, by taking two die boxes as a group of 1 meter.

In step S104, the step of binding the upper cast-in-place slab reinforcement provided in the embodiment of the present invention includes:

when the upper cast-in-place slab steel bars are bidirectional slabs, the lower steel bars are arranged below the upper steel bars of the rib beams, and the steel bars on the upper part of the slabs are arranged above the upper steel bars of the beams;

when the single-layer bidirectional plate is placed below the rib beam.

In step S105, the concrete curing and formwork removing method provided in the embodiment of the present invention includes:

firstly, watering and curing for more than 14 days, and dismantling a bottom die according to the regulation after the curing period; and (4) removing the template according to the principle that the center spreads to the periphery.

As shown in FIG. 2, the system for controlling the installation of a composite plastic mold box for a hollow concrete floor slab provided by the embodiment of the invention comprises:

and the scanning and recording module 1 is used for scanning engineering drawings and acquiring the specifications, the number and other relevant parameters of the relevant plastic mold box and the components thereof.

And the load parameter acquisition module 2 is used for acquiring the current load parameters.

And the template output module 3 is used for designing the cast-in-place concrete hollow floor structure center beam and plate templates according to requirements.

And the construction preparation module 4 is used for setting pre-buried water, electricity, heating and pipelines based on the drawing of the engineering drawing.

The material checking module 5 is used for checking whether the plastic mould box and the components thereof are in a wall-dead inspection report and a qualification certificate; and checking whether the specification and the number of the plastic mold box and the components thereof are accurate.

And the construction module 6 is used for installing and constructing the composite plastic mold box for the cast-in-place hollow floor system.

And the alarm module 7 is used for giving an alarm when the load parameter exceeds a normal value.

And the acceptance module 8 is used for checking whether the construction meets the standard.

The technical solution of the present invention is further illustrated by the following specific examples.

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