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混合结构振动台模型试验研究与计算分析
引用本文:武敏刚,吕西林.混合结构振动台模型试验研究与计算分析[J].地震工程与工程振动,2004,24(6):103-108.
作者姓名:武敏刚  吕西林
作者单位:同济大学,土木工程防灾国家重点实验室,上海,200092;同济大学,土木工程防灾国家重点实验室,上海,200092
基金项目:国家自然科学基金项目(50025821),上海市重点学科建设项目
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了非线性分析计算,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.

关 键 词:混合结构  振动台试验  纤维模型  钢骨混凝土
文章编号:1000-1301(2004)06-0103-06

Shaking table model test and theoretical analysis for seismic resistance of hybrid structures
Abstract: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.
Keywords:hybrid structure  shake table test  fiber model  steel-encased reinforced concrete
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