EXPERIMENTAL RESEARCH ON TENSION-BENDING-SHEAR BEHAVIOR OF STEEL PLATE-REINFORCED CONCRETE SHEAR WALLS

被引：0
作者：
Meng C.-L. [1 ]
Ke X.-J. [1 ,2 ]
Su Y.-S. [1 ,2 ]
Liang Y.-H. [1 ]
机构：
[1] College of Civil Engineering and Architecture, Guangxi University, Guangxi, Nanning
[2] Key Laboratory of Disaster Prevention, Structural Safety of Ministry of Education, Guangxi University, Guangxi, Nanning
来源：
Gongcheng Lixue/Engineering Mechanics | 2024年 / 41卷 / 05期
关键词：
bearing capacity; low-reversed loading; shear-tension bending coupled failure; steel plate-reinforced concrete shear wall; tension-bending-shear resistant performance;
D O I：
10.6052/j.issn.1000-4750.2022.05.0424
中图分类号：
学科分类号：
摘要：
The bottom shear walls of flexible skyscrapers might be under tension-bending-shear (TBS) combined conditions during strong earthquakes. The Chinese code recommends configuring section steel to improve such seismic performance, but relevant experimental researches are limited. The low-reversed loading tests were performed on six steel plate-reinforced concrete shear walls (SPCW) to investigate the influences of tension ratio, steel ratio, and shear-to-span ratio on the TBS resistant performance. The results indicated that the TBS action led to a dense fracture distribution, prominent steel hardening, and a shear-tension bending coupled failure in SPCW. As the tension ratio increased, the bearing capacity, initial lateral stiffness, and ductility of SPCW decreased by 22%, 41%, and 39%, respectively. Reducing the shear-to-span ratio increased the bearing capacity and lateral stiffness of SPCW by at least 23%, while increasing the steel ratio and reducing the shear-to-span ratio improved the ductility by 10%. The Chinese code had a better prediction on the shear bearing capacity of SPCW under TBS actions than the codes of other countries. However, there was a lack of attention to the high steel ratio’s influence on the dowel force at fracture surfaces, so correction with the initial steel ratio of the concealed column was suggested. © 2024 Tsinghua University. All rights reserved.
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页码：146 / 154
页数：8
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