摘要
为研究墙趾可更换组合剪力墙的抗震性能,设计并制作了2片带有可更换墙趾构件的波形钢板-混凝土组合剪力墙试件。采用拟静力试验和ABAQUS有限元软件模拟的方法,分析了内置波形钢板波纹方向对墙趾可更换组合剪力墙抗震性能的影响。试验结果表明:各试件墙趾构件先于主体构件破坏,且在达到极限位移角前其破坏主要集中于可更换墙趾构件;墙趾可更换组合剪力墙其内置波形钢板竖向波纹与横向波纹相比,抗侧承载力提高18.3%,延性系数提高28.69%,累积耗能量提高3.3倍,且具有更低的承载能力退化速率、刚度退化速率、等效黏滞阻尼系数减小比和刚度退化比,并且初始刚度有略微提高,即内置竖向波纹钢板组合剪力墙具有更优的受力性能和抗震性能;通过ABAQUS有限元模型分析与试验过程对比,其破坏形态与试验现象基本吻合,说明本文所建立的有限元模型具有一定的可靠性。
To study the seismic performance of corrugated steel plate concrete-composite shear wall with replaceable component of wall toe,two shear wall specimens were designed and fabricated.The influences of different arrangement forms of corrugated webs on seismic performance of shear wall specimens were analyzed by quasi-static tests and ABAQUS finite element software.The test result indicated that the wall toes of the specimen were destroyed before the main member,and the damage was mainly concentrated on the replaceable components before the ultimate drift ratio was reached.Compared with the horizontal corrugated steel plate concrete-composite shear wall,the lateral bearing capacity of the vertical corrugated steel plate concrete-composite shear wall had increased by 18.3%,the ductility coefficient increased by 28.69%,and the energy dissipation capacity increased by 3.3 times;The rate of bearing capacity degradation and stiffness degradation,the equivalent viscous damping coefficient and the stiffness degradation ratio were all lower,and the initial stiffness of the latter was slightly improved,which demonstrated that the vertical corrugated steel plate concrete-composite shear wall had better mechanical and seismic performance.By comparing the ABAQUS finite element model analyses with the test processes,the failure mode was basically consistent with the test phenomenon,which indicated that the finite element model established in this article had a certain reliability.
作者
王威
黄元昭
苏三庆
宋江良
徐善文
李昱
WANG Wei;HUANG Yuanzhao;SU Sanqing;SONG Jiangliang;XU Shanwen;LI Yu(School of Civil Eng.,Xi’an Univ.of Architecture and Technol.,Xi’an 710055,China)
出处
《工程科学与技术》
EI
CSCD
北大核心
2021年第4期33-44,共12页
Advanced Engineering Sciences
基金
国家自然科学基金项目(51878548,51578449)
陕西省自然科学基金项目(2018JZ5013)。
关键词
可更换构件
波形钢板–混凝土组合剪力墙
拟静力试验
可恢复功能结构
有限元分析
replaceable part
corrugated steel plate-concrete composite shear wall
quasi-static test
earthquake resilient structure
finite element analysis
