十字形内芯含隔离钢管式防屈曲支撑及其滞回性能试验  

A new type of buckling-restraining brace with isolation steel tube and hysteretic behavior test

作　　者：周翔子 马宁[1] 欧进萍[1] 

机构地区：[1]大连理工大学土木工程学院,辽宁大连116024

出　　处：《地震工程与工程振动》2014年第4期162-167,共6页Earthquake Engineering and Engineering Dynamics

基　　金：国家自然科学基金资助课题(51108063);国家科技支撑项目课题(2011BAK02B01)

摘　　要：本文提出了一种含隔离钢管式钢管混凝土防屈曲支撑,既解决了全钢防屈曲支撑长度较大时整体稳定性难以满足的问题,又解决了传统钢管混凝土防屈曲支撑混凝土与内芯接触易被压碎,且摩擦力大的问题。本文对此类防屈曲支撑进行了支撑构件足尺试验,旨在了解支撑的性能并探索其合理构造。结果表明,该支撑滞回曲线饱满稳定,具有良好的延性和耗能能力,且整体稳定性和局部稳定性良好。A new type of buckling-restraining brace with isolation steel tube has been developed, which not only overcame the difficulty of global stable when the brace was long, but also solved the problem of contact between steel core and concrete. Full-scale cyclic tests for this specimen were carried out to investigate the ability of seismic resistance and the structural requirements. The experimental result shows that this brace exhibited high energy dissipation capacity and stable hysteretic characteristic.

关 键 词：钢管混凝土防屈曲支撑 隔离钢管 滞回性能 构件试验 

分 类 号：TU352.1[建筑科学—结构工程] P315.92[天文地球—地震学]