基于混合屈服机制的钢管混凝土框架结构试验研究  

EXPERIMENTAL RESEARCH ON CONCRETE FILLED STEEL TUBULAR FRAME STRUCTURE DESIGNED ON HYBRID YIELD MECHANISM

作　　者：徐培蓁[1] 李青[1] 朱亚光[1] 

机构地区：[1]青岛理工大学,山东青岛266033

出　　处：《工程力学》2015年第12期132-138,共7页Engineering Mechanics

基　　金：国家自然科学基金项目(50808104);山东省自然科学基金项目(ZR2010EM010);青岛市公共领域科技支撑计划项目(12-1-3-55-nsh)

摘　　要：通过试验探讨了基于混合屈服机制设计的钢管混凝土框架结构的抗震安全性,考察局部屈曲与焊接对结构性能的影响。以屈服柱的宽厚比及节点柱梁强度比为参数设计了两个混合屈服机制框架结构,并对其进行了一定轴力下的低周反复水平荷载试验,根据试验结果分析了框架结构的层剪力-层间位移角关系、屈服柱的变形及损伤等的响应,验证了基于混合屈服机制设计的钢管混凝土框架结构的可行性及抗震安全性。Seismic safety of concrete filled steel tubular frame structure designed based on hybrid yield mechanism was investigated experimentally, and the impact of local buckling and welding on structural performance was studied. The parameters included the width to thickness ratio of yield column and strength ratio of column to beam. Two hybrid yield mechanism frame structures were designed. Horizontal low cyclic loading test of the frame structures were conducted with column under certain axial force. The relationship between story shear force and story drift angle of the structures was obtained, the deformation and damage of yield column were analyzed, and the feasibility and seismic safety of the structure designed based on hybrid yield mechanism were verified.

关 键 词：钢管混凝土框架结构 混合屈服机制 低周反复水平荷载试验 层间位移 损伤 

分 类 号：TU398[建筑科学—结构工程]