Prefabricated through hole assembly type reinforced concrete shear wall and construction method of prefabricated through hole assembly type reinforced concrete shear wall

Abstract

The invention provides a prefabricated through hole assembly type reinforced concrete shear wall and a construction method of the prefabricated through hole assembly type reinforced concrete shear wall. A plurality of vertical through holes are formed in a wall body, a plurality of movably connected vertical steel bars are respectively arranged in each through hole, the upper ends of the vertical steel bars are higher than the wall body, the lower ends of the vertical steel bars are connected with the steel bars of the lower layer shear wall, and the bottom end of the wall body is provided with support feet. The vertical steel bars are movably connected in the through holes of the shear wall, and when the steel bars of the upper and lower layers of shear wall are connected, the joint position is adjustable in the vertical direction, so the mutual staggering of the adjacent vertical steel bar joints can be conveniently ensured, the installation quality is enabled to conform to national relevant standards, the concrete casting and the steel bar connection in the through holes can be constructed according to the traditional cast-in-plate reinforced concrete process, the construction difficulty is reduced, and the engineering quality is improved.

Description

technical field [0001] The invention provides a construction method of a prefabricated through-hole assembled reinforced concrete shear wall. Background technique [0002] In the past, the prefabricated solid prefabricated reinforced concrete shear wall, the sleeves connected with the reinforcement of the lower shear wall are all pre-buried at the bottom of the upper shear wall, so the vertical reinforcement of the upper and lower floors are all grouted with sleeves at the same level connection, whose structure cannot meet the relevant provisions in the current national technical specifications and standards: [0003] 1. Article 8.4.7 of "Code for Design of Concrete Structures GB50010--2010" "The mechanical connection joints of longitudinally stressed steel bars should be staggered from each other", "The area percentage of longitudinally tensioned steel bar joints located in the same connection section should not be greater than 50%" . [0004] 2. Paragraph 4 of Article 11...

AI Technical Summary

Problems solved by technology

[0007] In the past, during the construction process of prefabricated solid prefabricated reinforced concrete shear walls, the lower shear walls were installed first, and after the beam-slab horizontal system process was completed, the sleeves of the upper shear walls and the lower shear walls were separated from the beams and slabs. The reserved steel bars protruding from the upper surface are connected, and the quality control error is within the range of millimeters, which requires high precision. However, in the actual construction process, it is inevitable that the prefabricated The steel bars reserved for the shear wall cause disturbances, resulting in deformation of the steel bars and contamination of the concrete. Therefore, before the upper and lower shear walls are connected, it is necessary to check the steel bars one by one and correct and detect the deformed steel bars. The most important thing is the high-efficiency grouting material, and the unqualified steel bars contaminated with concrete must be processed, which not only increases the workload, but also makes the construction difficult, and requires a high technical level of the workers, which makes the installation quality control more difficult.

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