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

A prefabricated concrete and shear wall technology, applied in building structures, walls, building components, etc., can solve the problems of difficult alignment of steel bars, difficult quality assurance, and difficult grouting, etc., to ensure vertical continuity and construction difficulty. The effect of low and high construction precision

Inactive Publication Date: 2019-02-22
TSINGHUA UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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

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Embodiment Construction

[0025] Below in conjunction with accompanying drawing, structure of the present invention, construction process are further described as follows.

[0026] Such as figure 1 As shown, a kind of prefabricated concrete shear wall vertically connected structure of the present invention comprises prefabricated concrete shear wall 1, vertical stress reinforcement 2 in the wall, additional reinforcement 4, hole-filling cement-based cementitious material 5 and concrete Post-pouring belt 6; a row of strip slots 3 are reserved at the top and bottom of precast concrete shear wall 1, and the strip slots 3 are evenly distributed between the vertical stressed steel bars 2 in the shear wall, and the strip slots The depth of 3 is the thickness of the precast concrete shear wall 1 minus the thickness of the reinforcement protective layer; when the precast concrete shear wall 1 is spliced ​​vertically, the strip-shaped slot holes 3 of the upper and lower walls are aligned and connected at the jo...

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04B2/56
CPCE04B2/56
Inventor 杨悦聂鑫聂建国
Owner TSINGHUA UNIV
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