- 摘 要
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聶建國, 田淑明
(清華大學土木工程系,結(jié)構(gòu)與振動教育部重點試驗室,北京100084)[摘要] 以足尺框架-剪力墻結(jié)構(gòu)試驗為基礎,討論了幾種不同的剪力墻宏觀模型,通過計算與試驗結(jié)果的比較發(fā)現(xiàn),纖維墻模型在大震下的計算穩(wěn)定性較差,單分量模型、多彈簧模型以及所提出的等效纖維柱模型可適用于不同地震水平下剪力墻結(jié)構(gòu)的地震反應分析。探討了核心筒結(jié)構(gòu)的建模方法以及上述模型在不同地震水平下的適用性。
[關鍵詞] 剪力墻(筒體);非線性;等效柱模型;纖維模型;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