强震作用下带屈曲约束支撑的K型网壳整体结构性能分析  

Performance analysis of K-reticulated shell structure with BRBs under severe earthquakes

作　　者：王秀丽[1] 周锟[1] 吴长[1] 

机构地区：[1]兰州理工大学土木工程学院,甘肃兰州730050

出　　处：《北京交通大学学报》2011年第1期61-67,共7页JOURNAL OF BEIJING JIAOTONG UNIVERSITY

基　　金：国家自然科学基金资助项目(50678078)

摘　　要：以K6型网壳为研究对象,考虑网壳支承结构的弹性效应,并在支承结构中设置屈曲约束支撑(BRB),考虑在9度区强震作用下,通过不同的屈曲约束支撑布置方式对结构进行动力弹塑性分析.结果表明,在考虑整体网壳支承结构共同工作时,结构主要节点位移和杆件内力响应都有所减小;网壳上部结构设置屈曲约束支撑能够有效降低节点位移和杆件内力响应;考虑上部和下部设置屈曲约束支撑共同工作对于K6型网壳减振耗能有很好的效果.The overall K6 reticulated shell structure＇s dynamic elastic-plastic analysis in 9 degrees area under earthquake was researched under different places of Buckling Restrained Braces（BRB） on the shell.The elastic effects of supporting structure and Buckling Restrained Braces were considered as two key factors.Analysis result shows that,when the supporting structure works together,the structure＇s response of displacement and internal force decreased markedly.After setting BRBs on upper shell,the displacement and internal force also decreased effectively,and it is good for energy consumption on K6 reticulated shell considering setting BRBs on upper and lower structures together.

关 键 词：K6型网壳 屈曲约束支撑 支承结构共同工作 强震作用 

分 类 号：TU356[建筑科学—结构工程] TU352.11