Prefabricated concrete ground beam-shear wall connecting joint and construction method thereof

Abstract

The invention discloses a prefabricated concrete ground beam-shear wall connecting joint and a construction method thereof. The prefabricated concrete ground beam-shear wall connecting joint comprises a conversion column, a ground beam and a shear wall. A core column is arranged on the conversion column, and the height of the core column is equal to the sum of the heights of the ground beam and the shear wall; a first end steel plate and a top steel plate are correspondingly arranged on the end face and the top face of the ground beam, and a second end steel plate and a bottom steel plate are correspondingly arranged on the end face and the bottom face of the shear wall; and the conversion column, the ground beam and the shear wall are sequentially arranged from bottom to top, the core column is vertically arranged upwards, the end face of the ground beam and the end face of the shear wall are connected with the core column through a first end steel plate and a second end steel plate correspondingly through bolts, and the top face of the ground beam and the bottom face of the shear wall are connected through a top steel plate and a bottom steel plate through bolts. The anchoring effect is achieved no longer depending on secondary concrete solidification, and the assembling efficiency and the connecting quality are greatly improved.

Description

technical field [0001] The invention belongs to the field of civil engineering and prefabricated assembled structures, and relates to a prefabricated concrete ground beam-shear wall connection node and a construction method thereof. Background technique [0002] The connection nodes and construction methods of prefabricated components are the key issues of prefabricated concrete structures, especially the connection nodes of precast concrete ground beams and shear walls, which have a great influence on the green and low-carbon assembly construction and the overall mechanical performance of the structure. [0003] The existing precast concrete ground beams and shear walls mostly use reserved steel bars, which are connected by grouting sleeves and then poured concrete twice to complete the on-site assembly connection. The steel bars transmit internal force through the grouting sleeves or threaded sleeves, and the post-cast concrete and precast Rough interface for working toget...

AI Technical Summary

Problems solved by technology

Sleeve connection has defects such as leakage irrigation, insufficient irrigation and insufficient insertion depth of steel bars in the project, and there is no fast and efficient detection method, so it is difficult to guarantee the force transmission of steel bars

Since the shear wall is generally double-layered and bidirectionally reinforced, the number of steel bars is large, and it is very difficult to align the holes of the steel bars during on-site assembly, and the construction is stagnant

The diameter of steel bars in shear walls is generally small, and the individual pressure bearing capacity is insufficient. Therefore, temporary supports must be installed during the installation of prefabricated shear walls, and the process is cumbersome.

After the steel sleeve butt joint is completed, concrete still needs to be poured twice to solve the problems of vertical pressure bearing and horizontal shear resistance. However, the contact surface between the post-cast concrete and the prefabricated components of this second pouring is easy to crack, and the tensile and shear resistance is insufficient. , unable to take advantage of the fast and efficient characteristics of assembly

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