Fabricated reinforced concrete wall vertical connecting structure and construction method thereof

Abstract

The invention discloses a fabricated reinforced concrete wall vertical connecting structure and a construction method thereof, a prefabricated shear wall comprises concrete, vertical ribs and horizontal ribs, a 9-shaped high-strength screw is pre-buried at the bottom of the prefabricated shear wall, the 9-shaped high-strength screw is connected with a base, and the 9-shaped high-strength screw is connected with the base through a high-strength bolt. Compared with the prior art, the wall is regular and free of special-shaped structures, and formwork erecting is convenient; the selected I-shaped steel base facilitates warehousing storage, transportation and installation of the shear wall, and wall body damage caused by uncontrollable factors can be reduced; a traditional reinforcing steel bar lap joint mode is adopted for site construction, operation is easy and convenient, unnecessary construction procedures are reduced, the technical level requirement of workers is lowered, and construction efficiency is improved. The problems that formworks are difficult to erect on leg supports on the two sides of the shear wall, and concrete of the post-cast strip is difficult to vibrate are solved, use of grouting sleeves is reduced, construction is convenient, and the construction visualization effect is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of prefabricated buildings, and in particular to a prefabricated steel-concrete wall vertical connection structure and a construction method thereof. Background Art

[0002] The connection technology between prefabricated shear wall walls is the key to the prefabricated integral reinforced concrete shear wall system. How to construct a new connection method with good stress performance, reasonable structural measures, and simple construction and installation has always been a technical difficulty in the design of prefabricated integral reinforced concrete shear wall structures.

[0003] At present, the common vertical connection methods of prefabricated shear walls are grouting sleeve connection, EMC bellows connection, mechanical connection, welding connection, etc. However, the above methods have high technical requirements and great construction difficulty during the construction process. The company's existing "concave" type post-casting belt overlap connection is not convenient for formwork because the two-leg support at the bottom is not convenient for vibrating and compacting the concrete of the bottom post-casting belt, which affects the speed of formwork pouring at the construction site and also affects the mechanical properties of the wall. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a prefabricated steel-concrete wall vertical connection structure and a construction method thereof. The wall is regular and has no special-shaped structure, which is convenient for formwork. The selected I-beam base is convenient for the storage, transportation and installation of the shear wall, which can reduce the damage to the wall caused by uncontrollable factors.

[0005] To achieve this technical purpose, the present invention adopts the following scheme: In the first aspect, the present invention provides a prefabricated steel-concrete wall vertical connection structure, including a prefabricated shear wall, the prefabricated shear wall includes concrete, vertical reinforcement and horizontal reinforcement, a "9"-shaped high-strength screw is embedded in the bottom of the prefabricated shear wall, the "9"-shaped high-strength screw is connected to a base, and the "9"-shaped high-strength screw and the base are connected by high-strength bolts.

[0006] Furthermore, the vertical reinforcement extends from the upper and lower sides of the precast shear wall, and the horizontal reinforcement extends from the left and right sides of the precast shear wall.

[0007] Furthermore, the base is an I-beam, and a connecting hole is provided on the I-beam.

[0008] Furthermore, the "9"-shaped high-strength screw is tied and connected with the vertical ribs or the horizontal ribs, and a fixing plate is sleeved on the "9"-shaped high-strength screw, and a through hole is opened on the fixing plate, and the size and position of the through hole correspond to the connection hole opened on the I-beam.

[0009] In a second aspect, the present invention provides a construction method for a prefabricated steel-concrete wall vertical connection structure, comprising the following steps: S1. Production of prefabricated shear walls: tie vertical and horizontal reinforcements according to design requirements, tie "9"-shaped high-strength screws to vertical or horizontal reinforcements, and fix the "9"-shaped high-strength screws with fixing pads on the part of the "9"-shaped high-strength screws that protrude from the wall surface to prevent the "9"-shaped high-strength screws from deviating and failing to accurately dock with the I-beam base after pouring; then pour concrete, and after curing and demolding, connect the "9"-shaped high-strength screws with the I-beam base to form a whole through high-strength bolts, and send the prefabricated shear wall to the yard for storage; S2. Wall construction: Use a tower crane to lift the upper prefabricated shear wall to the designated position, slowly lower it to the top of the lower prefabricated shear wall, accurately position it and ensure the verticality of the wall before fixing the oblique support; overlap the vertical reinforcement of the upper and lower prefabricated shear walls, then support the formwork for concrete pouring. The formwork and pouring port are prefabricated using a designed plan. After maintenance and demolding, the vertical connection construction of the upper and lower prefabricated shear walls is completed.

[0010] Compared with the prior art, the present invention has the following beneficial effects: The present invention provides a prefabricated steel-concrete wall vertical connection structure and a construction method thereof. The prefabricated shear wall is regular and has no special-shaped structure, which is convenient for formwork. The selected I-beam base is convenient for the storage and transportation and installation of the shear wall, which can reduce the damage to the wall caused by uncontrollable factors. The on-site construction adopts the traditional steel bar overlap form, which is easy to operate, reduces unnecessary construction processes and reduces the technical level requirements of workers, and improves construction efficiency. The present invention solves the problem that the leg supports on both sides of the shear wall are difficult to formwork and the concrete of the post-casting belt is difficult to vibrate, reduces the use of grouting sleeves, is convenient for construction, and achieves the effect of construction visualization. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of a vertical connection structure of an assembled steel-concrete wall according to an embodiment of the present invention; Figure 2 This is a cross-sectional view of a vertical connection structure of an assembled steel-concrete wall according to an embodiment of the present invention; Figure 3 This is a schematic diagram of a fixed pad according to an embodiment of the present invention; Figure 4 This is a schematic diagram of a post-cast strip template according to an embodiment of the present invention.

[0012] The markings in the figure are: 1. Prefabricated shear wall; 2. Vertical reinforcement; 3. Horizontal reinforcement; 4. Base; 5. "9"-shaped high-strength screw; 6. High-strength bolt; 7. Fixed pad; 71. Through hole; 8. Formwork; 81. Casting port. DETAILED DESCRIPTION

[0013] In order to fully understand the purpose, features and effects of the present invention, the present invention is described in detail through the following specific implementation methods, but the present invention is not limited thereto.

[0014] See also Figures 1 to 4 The present invention provides a prefabricated steel-concrete wall vertical connection structure, including a prefabricated shear wall 1, the prefabricated shear wall 1 includes concrete, vertical ribs 2 and horizontal ribs 3, the vertical ribs 2 extend from the upper and lower sides of the prefabricated shear wall 1, and the horizontal ribs 3 extend from the left and right sides of the prefabricated shear wall 1, and are used to overlap with the steel bars of the adjacent prefabricated shear wall 1. A "9"-shaped high-strength screw 5 is embedded in the bottom of the prefabricated shear wall 1, and the "9"-shaped high-strength screw 5 is connected to a base 4, and the "9"-shaped high-strength screw 5 and the base 4 are connected by high-strength bolts 6. The base 4 is an I-beam, and a connecting hole is opened on the I-beam. The "9"-shaped high-strength screw 5 is tied and connected with the vertical ribs 2 or the horizontal ribs 3, and a fixing pad 7 is sleeved on the "9"-shaped high-strength screw 5, and a through hole 71 is opened on the fixing pad 7, and the size and position of the through hole 71 correspond to the connecting hole opened on the I-beam.

[0015] A construction method for a prefabricated steel-concrete wall vertical connection structure comprises the following steps: S1. Production of prefabricated shear wall 1: tie vertical ribs 2 and horizontal ribs 3 according to design requirements, tie "9"-shaped high-strength screws 5 to vertical ribs 2 or horizontal ribs 3, fix the "9"-shaped high-strength screws 5 with fixing pads 7 on the part of the "9"-shaped high-strength screws 5 that protrude from the wall surface, and prevent the "9"-shaped high-strength screws 5 from deviating after pouring and failing to accurately dock with the I-beam base 4; then pour concrete, and after curing and demolding, connect the "9"-shaped high-strength screws 5 with the I-beam base 4 to form a whole by high-strength bolts 6, and send the prefabricated shear wall to the yard for storage; S2. Wall construction: Use a tower crane to lift the upper prefabricated shear wall 1 to the designated position, and slowly lower it to the top of the lower prefabricated shear wall 1. Place the I-beam base 4 on the top of the lower prefabricated shear wall 1, accurately position and ensure the verticality of the wall, and then fix the oblique support; overlap the vertical reinforcement 2 of the upper and lower prefabricated shear walls 1, and then support the formwork to pour the post-casting strip concrete. The formwork 8 and pouring port 81 of the post-casting strip are prefabricated using a designed plan, and the pouring port 81 is set on one side of the formwork 8. After maintenance and demolding, the vertical connection construction of the upper and lower prefabricated shear walls 1 is completed.

[0016] The present invention provides a prefabricated steel-concrete wall vertical connection structure and a construction method thereof. The wall is regular and has no special-shaped structure, which is convenient for formwork. The selected I-beam base is convenient for the storage and transportation and installation of the shear wall, which can reduce the damage to the wall caused by uncontrollable factors. The on-site construction adopts the traditional steel bar overlap form, which is easy to operate, reduces unnecessary construction processes and reduces the technical level requirements of workers, and improves construction efficiency. The present invention solves the problem that the leg supports on both sides of the shear wall are difficult to formwork and the concrete of the post-casting zone is difficult to vibrate, reduces the use of grouting sleeves, is convenient for construction, and achieves the effect of construction visualization.

[0017] Finally, it should be noted that the above-listed embodiments are only preferred embodiments of the present invention. Of course, those skilled in the art can make changes and modifications to the present invention. If these modifications and variations fall within the scope of the claims of the present invention and their equivalent technologies, they should be considered to be within the scope of protection of the present invention.

Claims

1. An assembled steel-concrete wall vertical connection structure, comprising a prefabricated shear wall (1), the prefabricated shear wall (1) comprising concrete, vertical ribs (2) and horizontal ribs (3), characterized in that: A "9"-shaped high-strength screw (5) is pre-buried at the bottom of the prefabricated shear wall (1); the "9"-shaped high-strength screw (5) is connected to a base (4); and the "9"-shaped high-strength screw (5) and the base (4) are connected via high-strength bolts (6).

2. The assembled steel-concrete wall vertical connection structure according to claim 1 is characterized in that: The vertical reinforcement (2) extends out of the upper and lower sides of the prefabricated shear wall (1), and the horizontal reinforcement (3) extends out of the left and right sides of the prefabricated shear wall (1).

3. The assembled steel-concrete wall vertical connection structure according to claim 1 is characterized in that: The base (4) is an I-beam, and a connecting hole is provided on the I-beam.

4. The assembled steel-concrete wall vertical connection structure according to claim 3 is characterized in that: The "9"-shaped high-strength screw rod (5) is tied and connected to the vertical ribs (2) or the horizontal ribs (3); a fixing plate (7) is sleeved on the "9"-shaped high-strength screw rod (5); a through hole (71) is formed on the fixing plate (7); the size and position of the through hole (71) correspond to the connection hole formed on the I-beam.

5. A construction method for the assembled steel-concrete wall vertical connection structure according to any one of claims 1 to 4, characterized in that: The following steps are involved: S1. Production of prefabricated shear wall (1): vertical reinforcement (2) and horizontal reinforcement (3) are tied according to design requirements, and "9"-shaped high-strength screw rods (5) are tied to the vertical reinforcement (2) or the horizontal reinforcement (3). The part of the "9"-shaped high-strength screw rods (5) protruding from the wall surface is fixed with a fixing pad (7) to prevent the "9"-shaped high-strength screw rods (5) from deviating after pouring and failing to accurately dock with the I-beam base (4); then, concrete is poured, and after curing and demolding, the "9"-shaped high-strength screw rods (5) are connected to the I-beam base (4) by high-strength bolts (6) to form a whole, and the prefabricated shear wall is sent to the yard for storage; S2. Wall construction: Use a tower crane to lift the upper prefabricated shear wall (1) to a designated position, slowly lower it to the top of the lower prefabricated shear wall (1), accurately position it and ensure the verticality of the wall before fixing it with diagonal supports; overlap and connect the vertical reinforcements (2) of the upper and lower prefabricated shear walls (1), then support the formwork for concrete pouring, and prefabricate the formwork (8) and the pouring port (81) using a designed plan. After maintenance and demolding, the vertical connection construction of the upper and lower prefabricated shear walls (1) is completed.

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