带高位厚板转换层混凝土框筒结构地震弹塑性反应分析  

Elastic-Plastic Earthquake Response Analysis of RC Frame-Core Wall Structure with High Thick-Slabs Transfer-Storey

作　　者：王慧英[1] 张回[2] 赵卫锋[2] 

机构地区：[1]广东建设职业技术学院土木工程系,广东广州510440 [2]湘潭大学土木工程与力学学院,湖南湘潭411105

出　　处：《湘潭大学自然科学学报》2014年第1期51-56,共6页Natural Science Journal of Xiangtan University

基　　金：国家自然科学基金项目(12JJ6047)

摘　　要：研究带高位厚板转换层钢筋混凝土框架核心筒结构的弹塑性地震反应.通过非线性动力时程分析,探讨地震强度水平、转换层层位、转换板厚度、下部结构刚度和楼层屈服承载力对层间位移和楼层剪力等结构弹塑性反应的影响.结果表明:层间位移和楼层剪力随地震强度增大而增大,地震强度越大影响越显著;随转换层层位提高,层间位移增大;转换板厚度增加对转换层下部结构的抗震不利;转换层下部核心筒剪力墙厚度和框支柱截面增大,均会减小结构的层间位移,但下部楼层剪力增大;楼层屈服承载力是影响结构位移反应的重要因素.The elastic-plastic earthquake response of reinforced concrete （RC} frame-core wall structure with high thick-slabs transfer-storey is studied. The dynamic time-history analysis is used to investigate the influence of earthquake intensity, location of thick-slabs transfer-storey, transfer-slab thickness, lower-sto- rey stiffness and storey yield strength, on the structural elastic-plastic response, such as inter-storey drift and storey shear force. The results demonstrate that inter-storey drift and storey shear force increases with increase in earthquake intensity, which is more significant due to increase in earthquake intensity. With the rise of thick-slabs transfer-storey, the inter-storey displacement increases. It is disadvantageous to seismic design of the lower stories with increase in thickness of transfer-slab. The inter-storey displacement decrea- ses with the increase in section of frame-supporting columns and thickness of core wall, but the storey shear of the lower stories increases simultaneously. The storey yield strength has important influence on the structural displacement response.

关 键 词：高位厚板转换层 框筒结构 地震弹塑性反应 层位移 层剪力 

分 类 号：TU398.7[建筑科学—结构工程]