轻钢轻混凝土结构多层足尺模型抗震性能试验研究  

Seismic capacity evaluation of lightweight steel and lightweight concrete structure based on quasi-static cyclic test of a multi-story full scale model

作　　者：黄强[1,2] 李东彬[1,2] 邵弘[1,2] 崔成臣[3] 权淳日 

机构地区：[1]中国建筑科学研究院,北京100013 [2]中国建筑技术集团有限公司,北京100013 [3]清华大学土木工程系,北京100084

出　　处：《建筑结构学报》2016年第4期10-17,共8页Journal of Building Structures

基　　金：国家发改委建筑行业低碳技术创新及产业化示范工程项目(2013-1819)

摘　　要：轻钢轻混凝土结构是由轻钢构架和现浇轻混凝土组成的新型结构体系。为了掌握该结构体系的抗震性能,进行了一个轻钢轻混凝土结构三层足尺模型的拟静力试验,并介绍了该试验模型的设计和建造过程,给出了结构的破坏形态、滞回曲线和层间变形等试验结果,分析了延性、刚度退化、等效黏滞阻尼比和基底剪力,掌握了轻钢轻混凝土结构的抗震性能。研究结果表明:轻钢轻混凝土结构试验模型具有足够的承载能力和延性,能够满足抗震设防烈度7度的要求,其具有良好的抗震性能,可以在相应抗震设防区推广应用。A quasi-static cyclic test of a new structure system named the lightweight steel and lightweight concrete（ LSLC） structure is presented,which uses cold-formed steel and foamed concrete as structural materials. In order to simulate the seismic response of the new structure system,a 3-story full scale model was constructed and tested under static cyclic lateral loading. The process of the design and construction for the test building is described. The damage state,hysteretic loops and inter-story drift of the test building are presented in detail. The seismic capacity of the test building was evaluated based on the ductility,stiffness degradation tendency,damping ratio and loading capacity. The test building shows enough loading capacity and ductility to meet the requirements corresponding to the seismic fortification intensity Ⅶ. It is indicated that the LSLC structure has a sufficient seismic capacity to become a low-rise and mid-rise construction option in the seismic region.

关 键 词：轻钢构架 轻混凝土 泡沫混凝土 足尺模型 拟静力试验 抗震性能 

分 类 号：TU398.9[建筑科学—结构工程] TU392.5