经历平面外损伤的柔性连接填充墙框架结构平面内抗震性能试验研究

引用文献:

周晓洁 ,陈康 ,程昌恽, 陈培奇, 杜金鹏. 经历平面外损伤的柔性连接填充墙框架结构平面内抗震性能试验研究[J]. 建筑结构,2023,48(11):103-109.

ZHOU Xiaojie CHEN Kang CHENG Changyun CHEN Peiqi DU Jinpeng. Experimental study on in-plane seismic behavior of flexible connection infilled frame structure with out-of-plane damage[J]. Building Structure,2023,48(11):103-109.

作者:周晓洁 ,陈康 ,程昌恽, 陈培奇, 杜金鹏
单位:天津市土木建筑结构防护与加固重点实验室 天津城建大学土木工程学院
摘要:为研究墙体构造措施和墙-框连接方式对砌体填充墙框架结构抗震性能的影响,设计制作了1榀空框架、2榀部分柔性连接和2榀全部柔性连接填充墙框架试件,然后在平面外单调静力加载试验的基础上进行了平面内水平低周往复荷载试验,最后结合试验结果对各试件的抗震性能进行综合分析和对比。试验和分析结果表明:墙-柱刚性连接的部分柔性连接方案对结构平面内及平面外水平承载力和初始刚度有利,但从变形能力和延性角度来看,墙-柱柔性连接更有利;全部柔性连接条件下,通过增强填充墙构造可以实现填充墙框架结构平面内及平面外综合抗震性能的改善,其中“井字梁”形式的填充墙构造方案综合抗震性能最优,且有利于降低平面外损伤对平面内抗震性能的影响。
关键词:砌体填充墙框架结构;柔性连接;平面内抗震性能;平面外抗震性能;单调静力加载试验;低周往复荷载试验;
作者简介:周晓洁,博士,教授,主要从事工程结构抗震研究,Email:zhouxj88888@126.com。陈培奇,硕士,副教授,主要从事工程结构抗震研究,Email:cpq@tcu.edu.cn。
基金:国家自然科学基金项目(51678389)。
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Experimental study on in-plane seismic behavior of flexible connection infilled frame structure with out-of-plane damage
ZHOU Xiaojie CHEN Kang CHENG Changyun CHEN Peiqi DU Jinpeng
(Tianjin Key Laboratory of Civil Buildings Protection and Reinforcement School of Civil Engineering, Tianjin Chengjian University)
Abstract: In order to study the influence of wall structural configuration and wall-frame connection methods on seismic performance of masonry infilled frame structure, 1 pure frame, 2 partiall flexible connection and 2 fully flexible connection filled wall frame specimens were designed and manufactured. Then in-plane horizontal low cyclic load tests were carried out on the basis of out-of-plane monotonic static load test. Finally, the seismic performance of specimens was analyzed and compared according to the test results. The results of test and analysis show that partial flexible connection scheme with wall-column rigid connection is beneficial to the in-plane and out-of-plane overall horizontal bearing capacity and initial stiffness of the structure, but from the perspective of deformation capacity and ductility, the wall-column flexible connection is more beneficial. Under fully flexible connection conditions, the in-plane and out-of-plane overall seismic performance of frame can be improved by reasonable structural configuration of infill wall. The wall in the form of "grid-beam" has the best overall seismic performance, and is conducive to reduce the influence of out-of-plane damage on in-plane seismic performance.
Keywords: masonry infilled frame structure; flexible connection; in-plane seismic performance; out-of-plane seismic performance; monotonic static load test; low cyclic load test
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