Floor structure support negative reinforcement net module and construction method thereof

Abstract

The invention discloses a floor structure support negative reinforcement net module and a construction method thereof, and relates to the technical field of buildings, and the floor structure support negative reinforcement net module comprises an integrated stressed reinforcement group, a plurality of distributed reinforcements, a plurality of horizontal displacement resistant short reinforcements, end triangular supporting split heads, middle triangular supporting split heads, position marks and integrated management information. Compared with the prior art, the method has the advantages that reinforcement information integrated management can be achieved, structural stress is reasonable, stability is good, cast-in-place and assembly structures can be used, the construction procedure of supporting horse stool setting is omitted, the construction environment of reinforcing steel bar binding is improved, the acceptance workload of a working face can be reduced, and the construction quality and the construction speed can be improved.

Description

Technical Field

[0001] The present invention relates to the field of construction technology, in particular to a negative bar mesh module for a floor structure support and its construction method. Background Art

[0002] When constructing a building floor structure, it usually includes work such as support erection, formwork installation, tying of floor reinforcement, pouring of concrete, and final maintenance construction process, as well as inspection and acceptance at each stage.

[0003] When implementing the construction of the negative bars of the floor structure support during the floor reinforcement tying construction stage, construction workers usually need to repeatedly check the design document parameters for cutting (matching) materials, construction layout, checking and measuring and sorting the reinforcement one by one on the working surface, laying the reinforcement one by one, forming a reinforcement mesh by full tying at each point with wire, setting support stools for the negative bar mesh, and construction review. The construction process has a large amount of information, is cumbersome and time-consuming, and affects the quality of reinforcement installation and construction progress.

[0004] During the inspection and acceptance stage of the floor structure reinforcement, the inspection and acceptance personnel need to accept the quality of the floor reinforcement tying according to the design parameters of the floor negative bars in the engineering construction drawings, and need to measure and check the installation spacing and diameter of the reinforcement. The inspection and acceptance process has a large amount of information, is cumbersome and time-consuming, and affects the acceptance progress.

[0005] The negative bars of the floor structure support include stress bars and distribution bars. Among them, the ends of the stress bars are all anchored with 7-shaped hooks to form single-piece short door-shaped reinforcement. Usually, a support stool is independently set between the negative bar mesh of the floor structure support and the formwork for stability. The negative bar mesh of the floor support formed by this structure is difficult to resist construction loads, and the reinforcement and support stools are prone to deformation or displacement. Especially after the negative bars are bent, it will affect the bearing capacity of the floor structure.

[0006] Since the negative bar mesh of the floor structure support is constructed by layout, positioning and wire tying on the working surface, it is prone to deformation, displacement or sinking of the negative bar mesh under the action of construction loads (concrete pouring, construction machinery, materials, construction personnel), affecting the construction quality.

[0007] When implementing the reinforcement project, usually, information (position, diameter, spacing and length of reinforcement) in the design document (such as drawings) is extracted for processes such as reinforcement production, material management, installation construction, inspection and acceptance, and inspection tracking. When implementing these information, each process needs to repeatedly search and check, with a large workload. Summary of the Invention

[0008] The object of the present invention is to provide a floor structure support negative reinforcement mesh module and its construction method for the support negative reinforcement of building floor structures, which can achieve integrated management of reinforcement information, have reasonable structural stress, good stability, can be used for both cast-in-place and assembled structures, eliminate the construction process of setting support stools, improve the construction environment of steel bar binding, reduce the acceptance workload of the working surface, and improve the construction quality and speed.

[0009] The floor structure support negative reinforcement mesh module of the present invention is realized as follows: It includes an integrated stress steel bar group, several distribution steel bars, several anti-horizontal displacement short steel bars, end triangular support stools, middle triangular support stools, position marks and integrated management information. The integrated stress steel bar group includes several straight stress steel bars arranged in parallel, several V-shaped steel bars, and end bent steel bars. One end of one straight stress steel bar is connected to one end of an adjacent straight stress steel bar through a first V-shaped steel bar, and the other end of the other straight stress steel bar is connected to the other end of an adjacent third straight stress steel bar through a second V-shaped steel bar. The end bent steel bar is connected to the free end of the straight stress steel bar on the side. The V-shaped steel bars connected to the ends of adjacent two straight stress steel bars form end triangular support stools. Several distribution steel bars are parallel to each other and perpendicularly connected to several straight stress steel bars arranged in parallel. There are two groups of middle triangular support stools, and each group has several middle triangular support stools. The middle triangular support stools are V-shaped and are connected to the connection points of adjacent two distribution steel bars on the same straight stress steel bar. The two groups of middle triangular support stools are respectively located on both sides of the integrated stress steel bar group. There are more than two groups of anti-horizontal displacement short steel bars and they are located in the middle position of the integrated stress steel bar group. The anti-horizontal displacement short steel bars are vertical and are connected to the connection points of the distribution steel bars and the straight stress steel bars. The height of the anti-horizontal displacement short steel bars, the vertical height of the end triangular support stools, the vertical height of the end bent steel bars and the vertical height of the middle triangular support stools are the same. The position marks and integrated management information include the positions of various steel bars, the positioning scales of various steel bars, the diameters of various steel bars, the materials of various steel bars, the spacings of various steel bars, the lengths of various steel bars, the spacings and heights between the anti-horizontal displacement short steel bars, the spacings and heights between the end triangular support stools, the spacings and heights between the middle triangular support stools, the floor span and thickness used, the using parts and the information numbers.

[0010] Preferably, the integrated stress steel bar group including several straight stress steel bars arranged in parallel, several V-shaped steel bars and end bent steel bars is integrally bent from one steel bar.

[0011] Preferably, the position marks and integrated management information include information numbers with single symbols (such as ①, ③, etc.) to facilitate quick identification by users.

[0012] Preferably, positioning scales that are easy to identify are provided at the connection and fixation positions on the straight stressed steel bars corresponding to the design requirements, so as to accurately position and fix the negative bar mesh module of the floor slab structure support during installation. The construction method of the negative bar mesh module of the floor slab structure support of the present invention is realized as follows, including: S1: After the engineering design documents are determined, the construction site prepares a construction progress plan according to the structural conditions of the design documents, and notifies the manufacturer of the negative bar mesh module of the floor slab structure support and the relevant quality management parties; S2: After the engineering design documents and the construction progress plan are determined, the manufacturer of the negative bar mesh module of the floor slab structure support prepares a manufacturing plan for the negative bar mesh module of the floor slab structure support, and manufactures the negative bar mesh module of the floor slab structure support outside the floor construction operation surface in advance according to the design documents. After passing the quality inspection, mark the position marks and integrated management information and wait for use, and notify the floor construction operation surface construction site and the relevant parties of the position marks, integrated management information, inspection situation and processing quantity; Since the inspection content in the S2 stage includes the positions of various steel bars, the positioning scales of various steel bars, the diameters of various steel bars, the materials of various steel bars, the spacings of various steel bars, the lengths of various steel bars, the spacings and heights between the short steel bars against horizontal displacement, the spacings and heights between the end triangular support stools, the spacings and heights between the middle triangular support stools, the floor slab spans and thicknesses used, the use parts, and the information numbers, and the negative bar mesh module of the floor slab structure support has met the requirements of the design document parameters, the verification work of the design parameters can be exempted from the inspections and acceptances in the later stages, reducing the workload of the operation surface in the later stage, and improving the construction speed and the quality of the negative bar mesh module of the floor slab structure support; Since it is manufactured outside the floor construction operation surface, the manufacturing process is not affected by the on-site environment and construction progress of the floor construction operation, and factory production can be carried out. Therefore, automated equipment can be used, with high production efficiency and high quality; S3: When the construction site constructs to the corresponding structural member position according to the construction progress plan, and after the formwork of the engineering floor slab structure is installed, mark the position marks and the information numbers of the integrated management information of the negative bar mesh module of the floor slab structure support to be installed at the corresponding positions on the formwork, so as to ensure that the transported and placed negative bar mesh module of the floor slab structure support corresponds to the corresponding positions (for example, when it is required to place the negative bar mesh module of the floor slab structure support with information number ① on the building axis 3 or the negative bar mesh module of the floor slab structure support with information number ③ on the building axis B according to the design requirements, mark the information numbers of the position marks and the integrated management information of the corresponding negative bar mesh module of the floor slab structure support at the corresponding positions on the corresponding formwork, so that the negative bar mesh module of the floor slab structure support can be accurately transported to the construction site); S4: According to the corresponding position marks on the template and the information numbers of the integrated management information, match them with the position marks and the information numbers of the integrated management information of the floor structure support negative reinforcement mesh module. After the steel bar skeleton of the structural beam is placed stably in the sinking position and the bottom reinforcement of the floor slab is installed, position and fix the floor structure support negative reinforcement mesh module one by one according to the positioning scales on the straight stress steel bars. The steel bars of the steel bar skeleton of the structural beam, the steel bars of the bottom reinforcement of the floor slab, and the steel bars of the floor structure support negative reinforcement mesh module overlap and anchor each other to complete the laying of the floor steel bar skeleton. Simply use steel nails to fix the end triangular support stools and the middle triangular support stools on the template according to the actual needs on site to ensure the stable installation of the floor structure support negative reinforcement mesh module; Since the quality of the floor structure support negative reinforcement mesh module has been inspected and accepted in the S2 stage, there is no need to refer to the design document parameters (drawings) in the S4 stage, and the construction process is intuitive, simple and fast; Since the floor structure support negative reinforcement mesh module already contains end triangular support stools and middle triangular support stools with reasonable fixed force structures during production, the construction procedures for setting the end triangular support stools and the middle triangular support stools are exempted in the S4 stage, reducing the workload of the operation surface and improving the construction speed; Since the floor structure support negative reinforcement mesh module has corresponding positioning scales during production and positioning can be directly adopted when installing the floor structure support negative reinforcement mesh module, the use of a tape measure is exempted in the S4 stage, improving the construction speed; S5: After all the floor steel bar skeletons are completed, enter the acceptance stage of the floor steel bar skeleton. The acceptance personnel check according to the corresponding position marks and integrated management information at the template, and match them with the position marks and integrated management information of the floor structure support negative reinforcement mesh module that has been placed. Confirm whether the information numbers match. At the same time, the positioning scales on the floor structure support negative reinforcement mesh module can be directly observed visually to check the accuracy of the installation positioning; Since the quality of the floor structure support negative reinforcement mesh module has been inspected and accepted in the S2 stage, there is no need to refer to the design document parameters (drawings) in the S5 stage either. It is only necessary to check on site whether the information numbers correspond one by one. The acceptance process is intuitive, simple and fast; Since the floor structure support negative reinforcement mesh module has corresponding positioning scales during production, when checking whether the positioning of the floor structure support negative reinforcement mesh module is accurate, it is only necessary to visually check the compliance in the S5 stage, and there is no need to refer to the design document parameters (drawings) again, improving the inspection and acceptance speed; S6: After the floor steel bar skeleton is inspected and accepted as qualified, start pouring the floor concrete. Since the floor structure support negative reinforcement mesh module has good bearing capacity and is not easy to deform and sink under the action of construction load, the action of lifting and adjusting the negative reinforcement of the floor during the concrete pouring process is reduced.

[0013] Compared with the existing technologies, the present invention has the advantages of being able to achieve integrated management of reinforcement information, reasonable structural stress, good stability, being applicable to both cast-in-place and prefabricated structures, eliminating the construction process of setting support stools, improving the construction environment of steel bar binding, reducing the acceptance workload of the working surface, and improving construction quality and speed. Brief Description of the Drawings

[0014] Figure 1 It is a schematic structural diagram of the negative bar mesh module at the support of the floor slab structure of the present invention; Figure 2 It is a partial enlarged view of the negative bar mesh module at the support of the floor slab structure with position marks and integrated management information; Figure 3 It is a schematic structural diagram of the integrated stress steel bar group; Figure 4 It is a construction schematic diagram of the negative bar mesh module at the support of the floor slab structure of the present invention; Figure 5 It is a construction plan view of the negative bar mesh module at the support of the floor slab structure of the present invention.

[0015] Explanation of the reference numerals in the drawings: A - negative bar mesh module at the support of the floor slab structure; B - formwork; C - steel bar skeleton of the structural beam; D - bottom reinforcement; 1 - integrated stress steel bar group; 101 - straight stress steel bar; 102 - V-shaped steel bar; 103 - end bent steel bar; 104 - positioning scale; 2 - distribution steel bar; 3 - short anti-horizontal displacement steel bar; 4 - end triangular support stool; 5 - middle triangular support stool; 6 - position mark and integrated management. Detailed Embodiment

[0016] Now, in combination with the drawings and embodiments, the negative bar mesh module at the support of the floor slab structure of the present invention and its construction method will be further described in detail: As Figure 1As shown in Fig. —3, the negative bar network module A of the floor slab structure support of the present invention includes an integrated stress bar group 1, several distribution bars 2, several short anti-horizontal displacement bars 3, end triangular support stools 4, middle triangular support stools 5, position marks and integrated management information 6. The integrated stress bar group 1 includes several straight stress bars 101 arranged in parallel, several V-shaped bars 102, and end bent bars 103. One end of one straight stress bar 101 is connected to one end of an adjacent straight stress bar 101 through a first V-shaped bar 102, and the other end of the other straight stress bar 101 is connected to the other end of an adjacent third straight stress bar 101 through a second V-shaped bar 102. The end bent bar 103 is connected to the free end of the straight stress bar 101 on the side. The V-shaped bars 102 connected to the ends of two adjacent straight stress bars 101 form end triangular support stools 4. Several distribution bars 2 are parallel to each other and perpendicularly connected to several straight stress bars 101 arranged in parallel. There are two groups of middle triangular support stools 5, and each group has several middle triangular support stools 5. The middle triangular support stools 5 are V-shaped and are connected to the connection points of two adjacent distribution bars 2 on the same straight stress bar 101. The two groups of middle triangular support stools 5 are respectively located on both sides of the integrated stress bar group 1. There are more than two groups of short anti-horizontal displacement bars 3 and they are located in the middle position of the integrated stress bar group 1. The short anti-horizontal displacement bars 3 are vertical and are connected to the connection points of the distribution bars 2 and the straight stress bars 101. The height of the short anti-horizontal displacement bars 3, the vertical height of the end triangular support stools 4, the vertical height of the end bent bars 103, and the vertical height of the middle triangular support stools 5 are the same. The position marks and integrated management information 6 include the positions of various bars, the positioning scales of various bars, the diameters of various bars, the materials of various bars, the spacings of various bars, the lengths of various bars, the spacings and heights between the short anti-horizontal displacement bars 3, the spacings and heights between the end triangular support stools 4, the spacings and heights between the middle triangular support stools 5, the floor slab span and thickness used, the using parts, and the information numbers.

[0017] Preferably, the integrated stress bar group 1 including several straight stress bars 101 arranged in parallel, several V-shaped bars 102, and end bent bars 103 is integrally bent from one bar.

[0018] Preferably, the position marks and integrated management information 6 include information numbers (such as ①, ③, etc.) of single symbols to facilitate quick identification by users.

[0019] Preferably, positioning scales 104 for easy identification are provided at the connection and fixing positions corresponding to the design requirements on the straight stress bars 101 of the integrated stress bar group 1, so as to accurately position and connect and fix the negative bar network module of the floor slab structure support during installation.

[0020] The construction method of the negative bar mesh module of the floor slab structure support of the present invention is realized as follows, including: S1: After the engineering design document is determined, the construction site prepares a construction progress plan according to the structural conditions of the design document, and notifies the manufacturer of the negative bar mesh module of the floor slab structure support and the relevant quality management parties; S2: After the engineering design document and the construction progress plan are determined, the manufacturer of the negative bar mesh module of the floor slab structure support prepares a manufacturing plan for Module A of the negative bar mesh module of the floor slab structure support, and manufactures Module A of the negative bar mesh module of the floor slab structure support in advance outside the floor construction operation surface according to the design document. After passing the quality inspection and acceptance, mark the position mark and integrated management information 6 and then set it aside for use, and notify the floor construction operation surface construction site and relevant parties of the position mark, integrated management information 6, acceptance situation and processing quantity; S3: When the construction site constructs to the corresponding structural member position according to the construction progress plan, and after the engineering floor slab structure formwork B is installed, mark the information number of the position mark and integrated management information 6 of the negative bar mesh module of the floor slab structure support that needs to be installed at the corresponding position on the formwork, so as to ensure that the delivered and placed Module A of the negative bar mesh module of the floor slab structure support corresponds to the corresponding position; S4: According to the information number of the corresponding position mark and integrated management information 6 on the formwork B, match it with the information number of the position mark and integrated management information 6 of Module A of the negative bar mesh module of the floor slab structure support. After the steel bar skeleton C of the structural beam is lowered and placed stably and the bottom reinforcement D of the floor slab is installed, position and fix Module A of the negative bar mesh module of the floor slab structure support one by one according to the positioning scale 104 on the straight stressed steel bar 101. The steel bars of the steel bar skeleton C of the structural beam, the steel bars of the bottom reinforcement D of the floor slab and the steel bars of Module A of the negative bar mesh module of the floor slab structure support overlap and anchor each other to complete the laying of the floor steel bar skeleton. According to the actual needs on site, simply use steel nails to fix the end triangular support stool 4 and the middle triangular support stool 5 on the formwork B to ensure the stable installation of Module A of the negative bar mesh module of the floor slab structure support; S5: After all the floor steel bar skeletons are completed, enter the acceptance stage of the floor steel bar skeleton. The acceptance personnel check according to the corresponding position mark and integrated management information on the formwork and the position mark and integrated management information of the already placed negative bar mesh module of the floor slab structure support to confirm whether their information numbers match. At the same time, the positioning scale on the negative bar mesh module of the floor slab structure support can be directly visually observed to check the accuracy of the installation positioning during acceptance; S6: After the floor steel bar skeleton passes the acceptance, start pouring the floor concrete.

Claims

1. A negative bar mesh module for a floor slab structure support, characterized in that, It includes an integrated stress-bearing steel bar group, several distribution steel bars, several short anti-horizontal displacement steel bars, end triangular support stools, middle triangular support stools, position marks and integrated management information. The integrated stress-bearing steel bar group includes several straight stress-bearing steel bars arranged in parallel, several V-shaped steel bars, and end bent steel bars. One end of one straight stress-bearing steel bar is connected to one end of an adjacent straight stress-bearing steel bar through a first V-shaped steel bar, and the other end of the other straight stress-bearing steel bar is connected to the other end of an adjacent third straight stress-bearing steel bar through a second V-shaped steel bar. The end bent steel bar is connected to the free end of the straight stress-bearing steel bar on the side. The V-shaped steel bars connected to the ends of adjacent two straight stress-bearing steel bars form end triangular support stools. Several distribution steel bars are parallel to each other and perpendicularly connected to several straight stress-bearing steel bars arranged in parallel. There are two groups of middle triangular support stools, and each group has several middle triangular support stools. The middle triangular support stools are V-shaped and are connected to the connection points of adjacent two distribution steel bars on the same straight stress-bearing steel bar. The two groups of middle triangular support stools are respectively located on both sides of the integrated stress-bearing steel bar group. There are more than two groups of short anti-horizontal displacement steel bars and they are located at the middle position of the integrated stress-bearing steel bar group. The short anti-horizontal displacement steel bars are vertical and are connected to the connection points of the distribution steel bars and the straight stress-bearing steel bars. The height of the short anti-horizontal displacement steel bars, the vertical height of the end triangular support stools, the vertical height of the end bent steel bars and the vertical height of the middle triangular support stools are the same. The position marks and integrated management information include the positions of various steel bars, the positioning scales of various steel bars, the diameters of various steel bars, the materials of various steel bars, the spacings of various steel bars, the lengths of various steel bars, the spacings and heights between the short anti-horizontal displacement steel bars, the spacings and heights between the end triangular support stools, the spacings and heights between the middle triangular support stools, the floor slab span and thickness used, the using parts and the information numbers.

2. The floor slab structure support negative steel bar mesh module according to claim 1, wherein, The integrated stress-bearing steel bar group including several straight stress-bearing steel bars arranged in parallel, several V-shaped steel bars, and end bent steel bars is formed by integrally bending a single steel bar.

3. The floor slab structure support negative steel bar mesh module according to claim 1 or 2, characterized in that The position marks and integrated management information include information numbers with single symbols.

4. The floor slab structure support negative steel bar mesh module according to claim 1 or 2, characterized in that, Conveniently recognizable positioning scales are set at the connection and fixation positions corresponding to the design requirements on the straight stress-bearing steel bars.

5. The floor slab structure support negative steel bar mesh module according to claim 3, characterized in that, Conveniently recognizable positioning scales are set at the connection and fixation positions corresponding to the design requirements on the straight stress-bearing steel bars.

6. The construction method of the floor slab structure support negative bar mesh module according to claims 1 - 5, characterized in that S1: After the engineering design document is determined, the construction site prepares a construction progress plan according to the structural conditions of the design document and notifies the fabricator of the floor slab structure support negative bar mesh module and the relevant quality management parties; S2: After the engineering design document and the construction progress plan are determined, the fabricator of the floor slab structure support negative bar mesh module prepares a manufacturing plan for the floor slab structure support negative bar mesh module, and manufactures the floor slab structure support negative bar mesh module outside the floor slab construction operation surface in advance according to the design document. After passing the quality acceptance, mark the position marks and integrated management information and then wait for use, and notify the floor slab construction operation surface construction site and the relevant parties of the position marks and integrated management information, the acceptance situation and the processing quantity; S3: When the construction site constructs to the corresponding structural member position according to the construction progress plan, and after the formwork of the engineering floor structure is installed, mark the position marks of the floor structure support negative steel bar mesh modules to be installed and the information numbers of the integrated management information at the corresponding positions on the formwork to ensure that the transported and placed floor structure support negative steel bar mesh modules correspond to the corresponding positions; S4: Match the position marks and information numbers of the integrated management information on the formwork with those of the floor structure support negative steel bar mesh modules. After the steel bar skeleton of the structural beam is lowered and placed stably and the bottom steel bars of the floor are installed, position and fix the floor structure support negative steel bar mesh modules one by one according to the positioning scales on the straight stressed steel bars. The steel bars of the steel bar skeleton of the structural beam, the steel bars of the bottom steel bars of the floor, and the steel bars of the floor structure support negative steel bar mesh modules overlap and anchor each other to complete the laying of the floor steel bar skeleton. Simply use steel nails to fix the end triangular support stools and the middle triangular support stools on the formwork according to the actual needs on site to ensure the stable installation of the floor structure support negative steel bar mesh modules; S5: After all the floor steel bar skeletons are completed, enter the acceptance stage of the floor steel bar skeleton. The acceptance personnel check the position marks and integrated management information on the formwork against those of the floor structure support negative steel bar mesh modules that have been placed to confirm whether their information numbers match. At the same time, the positioning scales on the floor structure support negative steel bar mesh modules can be directly visually observed to check the accuracy of the placement positioning during acceptance; S6: After the floor steel bar skeleton passes the acceptance, start pouring the floor concrete.

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