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作 者:张震 杨涛春[1] 李宜蔚 林明强[1] 谢群[1] ZHANG Zhen;YANG Taochun;LI Yiwei;LIN Mingqiang;XIE Qun(College of Civil Engineering and Architecture,University of Ji'nan,Ji'nan 250022,Shandong,China)
出 处:《地震工程学报》2025年第3期566-577,共12页China Earthquake Engineering Journal
基 金:山东省自然科学基金项目(ZR2021ME044)。
摘 要:为解决平钢板剪力墙易产生面外屈曲的问题,提出一种具备自防面外屈曲性能的新型双向斜置波纹钢板剪力墙(CCSPW)。为研究波纹角度对其抗震性能的影响,设计制作3个1/3缩尺CCSPW试件,通过MTS加载系统开展试验研究,分析试件在低周反复荷载作用下的初始刚度、承载力、破坏过程与破坏形式、耗能能力以及延性等抗震性能指标。研究表明:在低周反复荷载作用下,CCSPW可较好地防止面外鼓曲现象,并有良好的侧向承载能力;双向斜向布置的波纹钢板一拉一压共同受力,有效提高试件的初始刚度;其中,斜置角度为45°的CCSPW试件的承载力比其他两个试件分别提高了5.5%与10%,且延性系数最大,延性最好;斜置角度为60°的CCSPW试件的初始刚度和等效黏滞阻尼系数最大,与其他两个试件相比其等效黏滞阻尼系数提高了2%~5%,且耗能能力较为优异。To address the issue of out-of-plane buckling in flat steel plate shear walls,this paper proposes a new type of cross-slanted corrugated steel plate shear wall(CCSPW)with enhanced out-of-plane buckling-restrained performance.The study aims to investigate the influence of the corrugation angle on its seismic performance.To this end,three 1/3-scaled CCSPW specimens were designed and manufactured.The experimental study was conducted using the MTS loading system,focusing on various seismic performance indicators,such as initial stiffness,bearing capacity,failure process and form,energy consumption capacity,and ductility under low cyclic loading.The results show that CCSPWs can effectively prevent out-of-plane bulging under low cyclic loading,showcasing excellent lateral bearing capacity.The cross-slanted corrugated steel plates,subject to a joint force of tension and pressure,effectively improve the initial stiffness of specimens.Notably,the CCSPW specimen with an oblique angle of 60°exhibits the greatest initial stiffness.The specimen with an oblique angle of 45°shows a bearing capacity that is 5.5%and 10%higher than those of the other two specimens,along with the highest ductility coefficient and superior ductility.Additionally,the specimen with an oblique angle of 60°displays the largest equivalent viscous damping coefficient,ranging from 2%to 5%higher than those of the other two specimens,indicating excellent energy dissipation capacity.
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