摘要
为研究混合结构的整体抗震性能,本研究以一个Ⅷ度区的LG大厦为原型,制作了1/20的整体模型,在同济大学土木工程国家重点实验室进行振动台试验,以考察地震动频谱及地震强度对混合结构地震反应的影响,了解混合结构体系的抗震性能、地震反应和破坏特征。本文还利用纤维模型建模对混合结构整体抗震性进行非线性分析计算,并将计算结果与振动台试验数据进行对比分析。试验和计算结果表明:外钢骨框架-内混凝土核心筒混合结构具有较好的抗震性能。
A shaking table test has been taken for a 1/20 model based on LG tower in State Key Laboratory for Disaster Reduction in Civil Engineering of Tongji University, for studying seismic resistance of hybrid structures. In this test, the influence of earthquake spectrum and intensity on the performance of hybrid structures was investigated. Also, its earthquake-resistance, earthquake response and damage characteristics were studied. The data obtained from this test and the calculated data using fiber model were compared. Based on results of test and calculation,it is concluded that the exterior steel-encased reinforced concrete frame-interior RC tube structures have very good seismic resistant performance.
出处
《地震工程与工程振动》
CSCD
北大核心
2004年第6期103-108,共6页
Earthquake Engineering and Engineering Dynamics
基金
国家自然科学基金项目(50025821)
上海市重点学科建设项目
关键词
混合结构
振动台试验
纤维模型
钢骨混凝土
hybrid structure
shake table test
fiber model
steel-encased reinforced concrete
