CN113047626A

CN113047626A - Finished steel reinforcement cage grading assembly method of bearing type reinforced concrete slab template

Info

Publication number: CN113047626A
Application number: CN202110169220.7A
Authority: CN
Inventors: 张宏; 罗申; 刘东卫; 季翔; 朱爱宇; 朱彩清; 丛勐; 王海宁; 伍雁华; 张睿哲; 朱郁松
Original assignee: Architects & Engineers Co Ltd Of Southeast University; Southeast University
Current assignee: Architects & Engineers Co Ltd Of Southeast University; Southeast University
Priority date: 2021-02-07
Filing date: 2021-02-07
Publication date: 2021-06-29

Abstract

A finished product reinforcement cage grading assembly method of a bearing type reinforced concrete slab template. The invention forms the second component by connecting the first component produced by the factory according to the standard quickly and accurately, and then combines, installs and connects and fixes the standardized template and the corresponding second component. Therefore, the invention can directly carry out concrete pouring and forming work after the plate formwork system and the plate reinforcement cage are assembled in a grading way. According to the method, the template and the steel bars are quickly positioned and assembled by a graded assembly method, the field manual operation amount is reduced, the construction process is simplified, the construction efficiency of the reinforced concrete project is accelerated, and the field cost is saved.

Description

Finished steel reinforcement cage grading assembly method of bearing type reinforced concrete slab template

Technical Field

The invention relates to the field of constructional engineering, in particular to a finished steel reinforcement cage grading assembly method of a bearing type reinforced concrete slab template.

Background

The finished reinforcement cage is an existing prefabricated assembly construction method. The prefabricated combined reinforcement cage component is formed by assembling a prefabricated vertical structure reinforcement cage component, a prefabricated beam reinforcement cage component and a prefabricated floor slab reinforcement cage component, and the prefabricated vertical structure reinforcement cage component is a prefabricated shear wall reinforcement cage component or a prefabricated column reinforcement cage component. The finished product steel reinforcement cage system can realize the assembly of ultra-large components and reinforced concrete large-space civil buildings, which cannot be completed by the existing components and processes, simplifies the procedures, reduces the cost and improves the efficiency.

The finished steel reinforcement cage is produced in a factory by the graded steel reinforcements of the components, and is assembled in multiple stages on site to form a large space structural body of the rigid steel reinforcement cage, so that the industrialization of steel reinforcement engineering is completed, and the novel industrialized construction of division of labor cooperation is realized.

At present, the prestressing technology is mostly applied to prestress in a reinforced concrete structure body at present, the loading mode is mostly internal prestress and is permanent prestress loading, after the prestress loading is finished, the prestress cannot be adjusted and changed, the construction process is complicated, the construction efficiency is low, and the revolving use and recycling capability is not realized.

Disclosure of Invention

The invention provides a finished product reinforcement cage grading assembly method of a bearing type reinforced concrete slab template, aiming at the defects of the prior art, and the invention can directly carry out concrete pouring forming work after the slab template system and the slab reinforcement cage are graded assembled, thereby realizing the rapid positioning and assembly of the template and the reinforcement, optimizing and reducing the field manual work load, simplifying the construction process, accelerating the construction efficiency of the reinforced concrete project and saving the field cost. The invention specifically adopts the following technical scheme.

Firstly, in order to achieve the purpose, a finished reinforcement cage grading assembly method of a bearing type reinforced concrete slab template is provided, which comprises the following steps: assembling a plurality of primary components to form a secondary component; step two, arranging primary joints among the secondary components, and connecting the secondary components into a whole by the primary joints; erecting a plate support and a plate prestress loading device; step four, selecting first-stage template sectional pieces matched with the span between the plate supports, and assembling the first-stage template sectional pieces to form a plate template; step five, hoisting each plate template block on the plate prestress loading device; and step six, paving a reinforcement cage formed by connecting the secondary members above the plate formwork to finish assembly.

Optionally, the finished steel reinforcement cage grading assembly method of the bearing type reinforced concrete slab formwork includes: and prefabricating the stirrup and the longitudinal bar.

Optionally, in the method for assembling a finished steel reinforcement cage of a bearing type reinforced concrete slab formwork in a grading manner, the secondary member is a precast beam steel reinforcement cage.

Optionally, in the step one, the prefabricated stirrups are bent, fixed and molded according to the dimensions required by specific project specifications, and the prefabricated longitudinal reinforcements are sleeved into the prefabricated stirrups and fixedly connected with the inner walls of the prefabricated stirrups to obtain the precast beam reinforcement cage; and in the sixth step, the precast beam reinforcement cages are sequentially arranged, overlapped and fixed to form the reinforcement cage.

Optionally, in the method for assembling a finished steel reinforcement cage of a bearing type reinforced concrete slab template in a grading manner, beams are further arranged around the slab template, precast beam steel reinforcement cages are arranged inside the beams, and the steel reinforcement cages extend into the beams and are connected with the precast beam steel reinforcement cages inside the beams in a cross-linking manner.

Optionally, in the fourth step, the first-stage formwork sectional members are connected by pins to form the slab formwork.

Optionally, in the step five, each slab formwork is hoisted in blocks to be arranged on a flange of the slab prestress loading device.

Advantageous effects

The invention forms the second component by connecting the first component produced by the factory according to the standard quickly and accurately, and then combines, installs and connects and fixes the standardized template and the corresponding second component. Therefore, the invention can directly carry out concrete pouring and forming work after the plate formwork system and the plate reinforcement cage are assembled in a grading way. According to the method, the template and the steel bars are quickly positioned and assembled by a graded assembly method, the field manual operation amount is reduced, the construction process is simplified, the construction efficiency of the reinforced concrete project is accelerated, and the field cost is saved.

The bearing type metal plate template provided by the invention is assembled and spliced by utilizing the plate template with modular design, the prestress loading device and the adjustable steel support used as a plate support, and the templates are positioned and fastened through the quick positioning device and the pin firmware, so that the template assembly efficiency is improved. The slab prestressed bearing device is arranged at the bottom of the slab formwork, so that the bearing capacity of the slab formwork can be improved on the premise of not increasing the section, meanwhile, the slab formwork meets the requirements of beams with different sizes through combination among the slabs, the reuse efficiency of the slab formwork is improved, and the cost is reduced.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Drawings

The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic view showing the connection of the panel support and the panel prestress loading unit according to the present invention;

FIG. 2 is a schematic diagram of the hierarchical connection of the templates in the present invention;

FIG. 3 is a schematic view of the flange position of the slab prestress loading unit of the present invention;

FIG. 4 is a schematic view of the present invention illustrating the interconnection between the reinforcement cage and the beam;

fig. 5 is a schematic view illustrating a completed state of a completed steel reinforcement cage of the load bearing reinforced concrete slab form of the present invention in a graded assembly.

Detailed Description

In order to make the purpose and technical solution of the embodiments of the present invention clearer, the technical solution of the embodiments of the present invention will be clearly and completely described below with reference to the drawings of the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the invention without any inventive step, are within the scope of protection of the invention.

It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

The invention provides a finished steel reinforcement cage grading assembly method of a bearing type reinforced concrete slab template, which is characterized in that a primary steel reinforcement member is assembled into a secondary member through the grading assembly method, the primary member is a prefabricated plate steel reinforcement cage which is manufactured in a factory to be a prefabricated stirrup 1 and a prefabricated longitudinal reinforcement 2, and the secondary member is a finished prefabricated plate steel reinforcement cage, and the finished prefabricated plate steel reinforcement cage is connected through a primary joint 3, so that the penetration of steel reinforcements is reduced. The steel reinforcement cage component is positioned and fastened through a standardized quick metal template positioning device and a pin fastener, and template assembly is carried out simultaneously when the column steel reinforcement cage component is assembled, so that parallel construction is realized.

Specifically, the finished steel reinforcement cage grading assembly method of the bearing type reinforced concrete slab template comprises the following steps:

assembling a plurality of primary components consisting of prefabricated stirrups 1 and prefabricated longitudinal bars 2 to form secondary components by a graded assembly method; in the assembling process, the prefabricated stirrup 1 is bent, fixed and molded according to the size required by a specific project specification, the prefabricated longitudinal reinforcement 2 is sleeved in the prefabricated stirrup 1 and fixedly connected with the inner wall of the prefabricated stirrup 1, and a prefabricated beam reinforcement cage is obtained and used as a secondary component;

and step two, arranging primary joints 3 between the two-stage components, connecting the finished precast beam reinforcement cage by the primary joints 3, reducing the penetration of the reinforcement, and connecting the two-stage components into a whole. Therefore, the device can be used for positioning and fastening through a standardized quick metal template positioning device and a pin fastener, and template assembly is carried out simultaneously when the precast beam reinforcement cage is assembled, so that parallel construction is realized;

step three, erecting a plate support 4 and a plate prestress loading device 5;

step four, in a construction site factory, selecting primary template sectional pieces 6 matched with the span between the plate supports 4 according to different span sizes, and fixedly connecting the primary template sectional pieces 6 through pins to form a plate template 7 shown in the figure 2;

step five, hoisting and arranging each template 7 on the plate prestress loading device 5 in a partitioning manner according to the diagram shown in fig. 1, and particularly, hoisting and arranging each template 7 on a flange of the plate prestress loading device 5 in a partitioning manner according to the diagram shown in fig. 3;

and step six, laying a reinforcement cage formed by connecting the secondary members above the template 7, arranging beams shown in the figure 4 around the template 7, arranging a precast beam reinforcement cage inside the beam, extending the reinforcement cage into the beam, and connecting the reinforcement cage with the precast beam reinforcement cage inside the beam in a cross-connection manner to form a structure shown in the figure 5, thereby completing assembly.

And in the sixth step, the reinforcement cages are sequentially arranged among the reinforcement cages of the precast beams and are fixed in an overlapping manner to form the reinforcement cages.

Therefore, the invention provides a graded assembly method based on a bearing type metal plate template and a finished column reinforcement cage, which aims at solving the problems that a prestress loading device is arranged in a reinforced concrete structure in the existing construction method, the construction process is complicated and the construction efficiency is low, realizes the parallel construction of reinforcement engineering and formwork erecting engineering, simplifies the field process, reduces the construction difficulty and improves the construction efficiency.

The above are merely embodiments of the present invention, which are described in detail and with particularity, and therefore should not be construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, various changes and modifications can be made without departing from the spirit of the present invention, and these changes and modifications are within the scope of the present invention.

Claims

1. a finished steel cage grading assembly method of a load-bearing reinforced concrete slab formwork, is characterized in that, comprises:

Step 1, assembling a plurality of primary components to form secondary components;

In step 2, a primary joint (3) is arranged between each of the secondary components, and each of the secondary components is connected as a whole by the primary joint (3);

Step 3, erecting the plate support (4) and the plate prestressing device (5);

Step 4: Selecting a first-level formwork segment (6) that matches the span between the plate supports (4), and assembling each of the first-level formwork segments (6) to form a plate formwork (7);

In step 5, each of the plate formwork (7) is hoisted and installed on the plate prestressing device (5) in blocks;

Step 6: Lay the reinforcement cage formed by the connection of the secondary components above the plate formwork (7) to complete the assembly.

2 . The method for grading and assembling a finished steel cage of a load-bearing reinforced concrete slab formwork according to claim 1 , wherein the primary components comprise: prefabricated stirrups ( 1 ) and prefabricated longitudinal bars ( 2 ). 3 .

3 . The method for grading and assembling finished steel cages of load-bearing reinforced concrete slab formwork according to claim 2 , wherein the secondary components are prefabricated beam steel cages. 4 .

4. The method for grading and assembling finished steel cages of load-bearing reinforced concrete slab formwork according to claim 2-3, characterized in that, in the step 1, the prefabricated stirrups (1) are made according to the requirements of specific project specifications The prefabricated longitudinal reinforcement (2) is sleeved into the prefabricated stirrup (1) and fixedly connected to the inner wall of the prefabricated stirrup (1) to obtain the prefabricated beam reinforcement cage;

In the sixth step, the reinforcement cages of the prefabricated beams are sequentially arranged and overlapped to form the reinforcement cages.

5 . The method for grading and assembling finished steel cages of load-bearing reinforced concrete slab formwork according to claim 3 , wherein beams are also arranged around the slab formwork (7), and prefabricated beams are arranged inside the beams. 6 . Reinforcing bar cage, the reinforcing bar cage extends into the beam, and is connected with the prefabricated beam reinforcing bar cage inside the beam.

6. The method for grading assembly of finished steel cages for load-bearing reinforced concrete slab formwork according to claim 1, characterized in that, in the fourth step, each of the first-level formwork segments (6) are connected by pinning , assembled to form the plate template (7).

7 . The method for grading assembly of finished steel cages for load-bearing reinforced concrete slab formwork according to claim 6 , characterized in that, in the fifth step, each of the slab formwork ( 7 ) is hoisted and installed on the slab on the flange of the stress loading device (5).