|Table of Contents|

Study on mechanical behavior of double-faced superposed concrete shear wall under axial compression(PDF)

《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

Issue:
2025年04期
Page:
43-53
Research Field:
建筑结构
Publishing date:

Info

Title:
Study on mechanical behavior of double-faced superposed concrete shear wall under axial compression
Author(s):
ZHENG Zhangyu1; 2;  CHENG Jianfei3;  TIAN Shui3;  CHEN Junda3;  TAN Yuan4;  YAN Fei1; 2
(1. Changjiang Survey, Planning, Design and Research Co., Ltd., Wuhan 430010, Hubei, China; 2. Hubei Provincial Engineering Research Center for Waterfront Space Planning and Design, Wuhan 430010, Hubei, China; 3. School of Civil Engineering and Architecture, Wuhan University of Technology, Wuhan 430070, Hubei, China; 4. Myhome Prefabricated Building and Technology Co., Ltd., Wuhan 430071, Hubei, China)
Keywords:
double-faced superposed concrete shear wall;  axial compression performance;  experimental study;  numerical model
PACS:
TU375
DOI:
10.19815/j.jace.2023.11003
Abstract:
In order to study the axial compression performance of double-faced superposed concrete shear wall, three double-faced superposed concrete shear wall specimens and one cast-in-place contrast specimen were tested under axial compression. A refined numerical model was established based on ABAQUS finite element software. The accuracy of the numerical model was verified by comparing with the experimental results, and the theoretical calculation was carried out based on the existing theoretical formula of axial compression bearing capacity. The results show that brittle failure occurs in both cast-in-place and superposed concrete shear wall specimens under axial compression load. For the superposed shear wall specimens, the cracking of superposed surface significantly affects the collaborative performance of the precast slab and the core concrete. Compared to welded connections, the ultimate load of specimen is greater when the truss bars and mesh bars are tied together. After adopting a staggered arrangement of truss bars, the ultimate load of specimen is significantly increased. The ultimate bearing capacity of superposed shear walls decreases with the increase of height to thickness ratio. The farther the truss bar is from the side of wall, the poorer the overall integrity of superposed shear wall, and the more likely the superposed surface is to crack. Due to the poor overall integrity of superposed specimens, the theoretical results tend to be unsafe.

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Last Update: 2025-07-10