Prefabricated reinforced concrete shear wall and construction method

Abstract

The invention relates to a prefabricated reinforced concrete shear wall and a construction method. The shear wall comprises a wall board, a bracket, sleeves, casing pipes, joint bars, a steel plate and anchor bolts and is characterized in that the bracket is located on the lateral side of the wall board, the sleeves are pre-embedded into the upper portion of the wall board, the casing pipes are pre-embedded into the lateral side of the wall board, the joint bars and the steel plate extend out from the bottom surface of the wall board, and the anchor bolts are pre-embedded into two lateral sides of the wall board; each sleeve comprises an outer tube, a pressing piece and bolts, the upper portion of each sleeve is in squeezing connection with one joint bar, and the lower portion of each sleeve is connected with one joint bar in a threaded and sleeved manner. During construction, downward pressure is applied through supports to allow two walls to contact tightly, and bolts on the sleevesare screwed to clamp the joint bars to achieve squeezing connection. The prefabricated reinforced concrete shear wall has the advantages that the stress and construction problems of the prefabricatedreinforced concrete shear wall can be solved, node areas are good in stress performance and seismic performance, firm vertical reinforcing bar connection is achieved, and the shear wall is easy to construct.

Description

technical field [0001] The invention relates to the field of prefabricated shear walls in assembled reinforced concrete structures. Background technique [0002] At present, prefabricated structures are widely used, and shear walls are important components of high-rise buildings, and their prefabrication level affects the prefabrication level of the entire structure. The existing prefabricated reinforced concrete shear walls have certain problems in terms of structure, stress and construction. Reinforced concrete shear walls are generally prefabricated by floor, that is, the wall between the upper and lower floors is prefabricated as a unit, and the prefabricated components are split at the junction of the floor and the shear wall. Therefore, the quality of the joints is difficult to guarantee. The earthquake resistance of the structure is unfavorable. The vertical connection between two prefabricated shear walls mainly depends on grouting materials, and the vertical reinf...

AI Technical Summary

Problems solved by technology

Reinforced concrete shear walls are generally prefabricated by floor, that is, the wall between the upper and lower floors is prefabricated as a unit, and the prefabricated components are split at the junction of the floor and the shear wall. Therefore, the quality of the joints is difficult to guarantee. The earthquake resistance of the structure is not good

The vertical connection between two prefabricated shear walls mainly depends on grouting materials, and the vertical reinforcement is not well connected, which affects its tensile performance

The on-site construction of prefabricated reinforced concrete shear walls is relatively difficult. There are many vertical steel bars in the shear walls. Due to manufacturing errors, transportation deformation, vibration displacement and other reasons, the vertical steel bars will be dislocated to a certain extent, and it is not easy to insert them into the connection. In the sleeve, the construction is more difficult

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