- 摘 要
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聂建国, 田淑明
(清华大学土木工程系,结构与振动教育部重点试验室,北京100084)[摘要] 以足尺框架-剪力墙结构试验为基础,讨论了几种不同的剪力墙宏观模型,通过计算与试验结果的比较发现,纤维墙模型在大震下的计算稳定性较差,单分量模型、多弹簧模型以及所提出的等效纤维柱模型可适用于不同地震水平下剪力墙结构的地震反应分析。探讨了核心筒结构的建模方法以及上述模型在不同地震水平下的适用性。
[关键词] 剪力墙(筒体);非线性;等效柱模型;纤维模型;大震Model for analyzing seismic response of RC shear/core wall structure under major earthquakes
Nie Jianguo, Tian Shuming
( Key laboratory of Structural Engineering and Vibration of Education Ministry, Department of Civil Engineering, Tsinghua University, Beijing 100084, China)Abstract: Based on a full-scale frame-shear wall experiment of USA and Japan, results of several macro-models of shear wall are compared with experimental results. It is discovered that 3D fiber-wall model is not true under major earthquake ground motion, one-component model, multraxial spring model and modified fibercolumn model are suitable for seismic analysis of shear wall under different earthquake levels. The availability of models under all earthquake levels is discussed, especially under major earthquake ground motion.
Keywords: shear/core wall; nonlinearity; equivalent column model; fiber model; major earthquake ground motion