近场地震下屈曲约束钢板剪力墙结构抗震性能研究  

Seismic Performance of BR-SPSW Structure Under Near-Field Earthquake

作　　者：葛明兰 郝际平[2] 于金光[2] 鲁家晟 房晨 GE Minglan;HAO Jiping;YU Jinguang;LU Jiasheng;FANG Chen(School of Urban Planning and Municipal Engineering,Xi'an Polytechnic University,Xi'an 710048,China;School of Civil Engineering,Xi'an University of Architecture and Technology,Xi'an 710055,China;Northwest Branch Office of Joy City Holding of COFCO Co.,Ltd.,Xi'an 710076,China;East Branch Office of China Construction Science&.Technology Group Co.,Ltd.,Shanghai 201109,China)

机构地区：[1]西安工程大学城市规划与市政工程学院,西安710048 [2]西安建筑科技大学土木工程学院,西安710055 [3]中粮集团大悦城控股西北区域公司,西安710076 [4]中建科技集团有限公司华东分公司,上海201109

出　　处：《建筑钢结构进展》2022年第11期82-90,112,共10页Progress in Steel Building Structures

基　　金：西安工程大学校博士启动资金(107020417);国家自然科学基金(51878541、51908449)。

摘　　要：为评估屈曲约束钢板剪力墙结构在近场地震下的性能,在该结构振动台试验试件的有限元模型基础上,设计了具有理想屈服模式的4个不同层数的等效拉杆简化模型。采用非线性时程分析方法,重点对结构层数、近场地震有无速度脉冲效应等的影响进行了分析。结果表明:与非速度脉冲地震波作用时相比,4榀框架在近场速度脉冲地震波作用下的响应均较高;同时,随着结构高度的增加,层剪力呈减小趋势;仅5层屈曲约束钢板剪力墙结构在多遇和罕遇地震下的层间位移角小于规范限值,表明在进行屈曲约束钢板剪力墙结构设计时,需深入分析近场脉冲型地震对其的影响。To evaluate the performance of buckling-restrained steel plate shear wall(BR-SPSW) structure under near-field earthquake,four equivalent tension bar models with ideal yielding mode are designed based on the finite element model of the shaking table test specimens. Analyses are conducted on the influence of the number of structural floors,the presence or absence of velocity impulse effects of near-field earthquakes,etc. using nonlinear time-history analysis method. The results show that the response of four frames under near-field velocity pulse seismic wave is significantly higher than that under non-velocity pulse seismic wave. The distribution of shear force decreases with the increase of structure height. Only the 5-story BR-SPSW structure has a inter-story drift angle less than the value specified by the code under frequent and rare earthquakes,which indicates that it is necessary to conduct an in-depth analysis of the impact of near-field pulse earthquakes when the BR-SPSW structure is designed.

关 键 词：屈曲约束钢板剪力墙结构 近场地震 速度脉冲效应 层间位移角 楼层剪力 

分 类 号：TU973.16[建筑科学—结构工程] TU317.1