| 不同比例钢-混凝土混合结构高层建筑动力相似关系试验研究 |
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| 引用本文： | 吕西林,沈德建.不同比例钢-混凝土混合结构高层建筑动力相似关系试验研究[J].地震工程与工程振动,2008,28(4). |
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| 作者姓名： | 吕西林 沈德建 |
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| 作者单位： | 1. 同济大学,土木工程防灾国家重点实验室,上海,200092
2. 同济大学,土木工程防灾国家重点实验室,上海,200092;河海大学土木工程学院,江苏,南京,210098 |
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| 基金项目： | 国家自然科学基金，国家科技支撑计划 |
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| 摘 要： | 模型试验的动力相似理论是结构抗震试验技术中的一个基础性研究课题。本文设计实现了1/10、1/20和1/30三个不同比例的钢-混凝土混合结构高层建筑的振动台模型试验。通过对三个模型试验结果的对比研究,对钢-混凝土混合结构高层建筑的动力相似关系进行了初步探讨。试验结果表明,按照本文的动力模型的设计施工及试验要求进行的不同比例钢-混凝土混合结构高层建筑的振动台试验,在自振频率、振型、加速度放大系数、楼层最大位移、楼层剪力等动力特性和动力反应方面具有较好的相似性。试验结果一方面说明对这三个模型采用的动力相似关系和制作方法是合理的,另一方面也说明了对钢-混凝土混合结构房屋采用较小的1/30比例进行振动台试验是可行的。
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| 关 键 词： | 动力相似理论 钢-混凝土混合结构 高层建筑 振动台试验 动力特性 动力响应 |
Experimental study on dynamic similitude relationship of different scale steel-concrete hybrid structure models for highrise building |
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| LU Xilin,SHEN Dejian.Experimental study on dynamic similitude relationship of different scale steel-concrete hybrid structure models for highrise building[J].Earthquake Engineering and Engineering Vibration,2008,28(4). |
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| Authors: | LU Xilin SHEN Dejian |
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| Abstract: | Dynamic similitude theory of model tests is a basic research topic in seismic test technique for engineering structures.Shaking table model tests of three different models with the scale factor of 1/10,1/20 and 1/30 are designed and implemented in this paper.By comparing the results of these three model tests,the dynamic similitude relationship of steel-concrete hybrid structures for highrise buildings are discussed preliminarily.The similitude properties of the three test models,such as vibration frequency,vibration shape,amplification factor of acceleration,storey maximum displacement and storey maximum shear force are good when the design,construction and arrangement of shaking table model tests are done in this paper.It can be concluded that both the dynamic similitude relationship and construction method for these three models are reasonable.It can also be concluded that the 1/30,smaller similitude scale factor for steel-concrete hybrid structure for highrise building is reasonable from the test results. |
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| Keywords: | dynamic similitude theory steel-concrete hybrid structure highrise building shaking table test dynamic property dynamic response |
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