Vertical connection structure of prefabricated concrete shear wall and construction method thereof

Abstract

The invention relates to a vertical connection structure of a prefabricated concrete shear wall and a construction method thereof, and belongs to the technical field of a building structure. The vertical connection structure comprises a prefabricated concrete shear wall, additional steel bars, hole filling cement-based cementing materials and cement concrete post-pouring strips, wherein one row ofstrip-shaped slot holes are reserved at each of the top and the bottom of the prefabricated concrete shear wall; the slot holes are distributed between vertical stress steel bars in the wall; when the prefabricated wall bodies are vertically spliced, the slot holes of the upper and lower layers of wall bodies are aligned and communicated in the splicing seam positions; the through length additional steel bars are put into the slot holes; and the cement-based cementing materials are poured for fixation. The concrete is cast in situ in the horizontal splicing seam positions to form the post-pouring strips. The upper layer prefabricated concrete shear wall and the lower layer prefabricated concrete shear wall are firmly connected in the vertical direction through the additional steel bars, the hole filling cement-based cementing materials and the concrete post-pouring strips; and the force is reliably transferred. The vertical connection structure of the prefabricated concrete shear wallhas the advantages that the connection performance is identical to that of the existing grouting sleeve connection structure; the integrality and the safety of the structure are effectively ensured;the stress mechanism is clear; the construction is convenient; and economic performance and practicability are realized.

Description

technical field [0001] The structure and construction method of the vertical connection of the prefabricated concrete shear wall of the present invention are applied to the assembled integral concrete structure and belong to the technical field of building structures. Background technique [0002] In prefabricated monolithic concrete structures, the vertical connection performance of precast concrete shear walls has an important influence on the integrity of the structure. Currently commonly used connection structures include cast-in-place belt connection, sleeve grouting connection, and reserved grout-anchor lap, among which the cast-in-place belt connection requires that the reserved steel bars of the upper and lower walls be overlapped at the same cross-section at the seam. It is more difficult to align and tie the same, and the sleeve grouting connection or the grout anchor lap with reserved holes requires the external steel bars on the top of the lower wall to be insert...

AI Technical Summary

Problems solved by technology

[0004] The present invention proposes a structure and construction method for the vertical connection of precast concrete shear walls, which can solve the difficulty in alignment and construction of steel bars at joints and grouting when prefabricated concrete shear walls are vertically connected in existing assembled integral concrete structures. Difficulty, high cost and difficult quality assurance

Images