角部削弱开洞屈曲约束钢板墙受力性能研究
引用文献：
刘文洋 ，王立明， 代启鹏 ，白那. 角部削弱开洞屈曲约束钢板墙受力性能研究[J]. 建筑结构，2022，48（23）：147-152，99.
LIU Wenyang ，WANG Liming， DAI Qipeng， BAI Na. Study on mechanical behavior of holed buckling restrained steel plate shear wall with weakened corners[J]. Building Structure，2022,48（23）：147-152，99.
摘要：为避免四边连接屈曲约束钢板墙在周边非约束区特别是角部首先发生破坏，提出四边连接角部削弱开洞屈曲约束钢板墙。在钢板墙角部切除一定范围以消除角部应力集中的影响；然后在屈曲约束钢板墙中部沿45°方向错列开洞，实现钢板墙的塑性应变主要集中于墙体中部且保持较高的受力效率。利用经过模型试验结果验证的有限元分析方法对四边连接角部削弱开洞屈曲约束钢板墙的受力性能进行了参数分析，考虑了不同墙体尺寸和不同开洞率的影响，确定了合理的开洞间距和尺寸。分析表明，提出的开洞方案能够有效地减小屈曲约束钢板墙周边连接处的屈服区并降低塑性应变峰值，同时避免对边缘构件产生过大的附加内力，有利于四边连接屈曲约束钢板墙受力性能的充分发挥。
关键词：屈曲约束钢板墙；四边连接；错列开洞；开洞率；塑性应变；
基金：国家自然科学基金项目(51608180)；大庆市指导性科技计划项目(zd-2021-85)。
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[4] 李国强，刘文洋，陆烨，等.两边连接屈曲约束钢板剪力墙受力机理与等效支撑模型[J].建筑结构学报，2015,36(4):33-41.
[5] 陆烨，李国强，孙飞飞.大高宽比屈曲约束组合钢板剪力墙的试验研究[J].建筑钢结构进展，2009,11(2):18-27.
[6] 陆烨，李国强，孙飞飞.I形大高宽比屈曲约束钢板剪力墙的试验和理论研究[J].土木工程学报，2011,44(10):45-52.
[7] LIU WENYANG,LI GUOQIANG.Study on X-shape buckling restrained steel plate shear wall with two-side connections[C]//8th International Conference on Behavior of Steel Structures in Seismic Areas.Shanghai,2015.
[8] 孙飞飞，刘桂然.钢板开圆孔的组合钢板墙结构地震反应分析与试验验证[J].建筑结构学报，2009,30(5):82-88.
[9] 马欣伯.两边连接钢板剪力墙及组合剪力墙抗震性能研究[D].哈尔滨：哈尔滨工业大学，2009.
[10] LIU W,LI G Q,JIANG J.Mechanical behavior of buckling restrained steel plate shear walls with two-side connections[J].Engineering Structures,2017,138:283-292.
[11] 刘文洋，李国强.屈曲约束钢板墙-钢筋混凝土框架结构滞回性能试验研究[J].建筑结构学报，2018,39(5):27-35.
[12] 陆烨，刘文洋，李国强.混凝土框架-屈曲约束钢板墙结构的位移限值[J].建筑结构，2018,48(2):60-65.
Study on mechanical behavior of holed buckling restrained steel plate shear wall with weakened corners
Abstract: The holed buckling restrained steel plate wall(HBRW) with four-side connection and weakened corners was proposed to avoid the early failure in the surrounding unconstrained area, especially in the corner of the buckling restrained steel plate shear wall(BRW) with four-side connection. A certain part at the corners of the BRW was cut to eliminate the influence of the stress concentration in the corner. Then, staggered holes were opened in the middle part of the BRW along the 45° direction to concentrate the plastic strain mainly in the middle part of the wall with high load efficiency. The parametric analyses for mechanical behavior of HBRW were carried out by using the finite element method which was validated by other model test results, the influence of different wall sizes and different opening rates was considered, and the reasonable spacing and size of opening holes were determined. The analysis results show that the proposed holed scheme can effectively reduce the yield zone and peak value of plastic strain at the edges of BRW, and avoid excessive additional internal force on the boundary members, which is conducive to full play of the mechanical behavior of BRW with four-side connection.
Keywords: buckling restrained steel plate shear wall; four-side connection; staggered hole; hole ratio; plastic strain
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