| 地震荷载下双腹板-顶底角钢连接半刚接钢框架的动力特性研究 |
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| 引用本文： | 完海鹰,王建国,王秀喜. 地震荷载下双腹板-顶底角钢连接半刚接钢框架的动力特性研究[J]. 工程力学, 2011, 0(4) |
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| 作者姓名： | 完海鹰 王建国 王秀喜 |
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| 作者单位： | 中国科学技术大学近代力学系;合肥工业大学土木建筑工程学院; |
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| 基金项目： | 安徽省自然科学基金项目(070414175) |
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| 摘 要： | 利用大型有限元分析软件ANSYS对双腹板、顶底角钢半刚性连接的钢框架进行了三维弹塑性动力有限元分析。该分析采用了有限元实体建模,考虑了钢框架连接节点的非线性、几何非线性以及材料非线性等因素。通过有限元数值模拟分析得出了在地震荷载作用下,半刚性节点刚度的变化对钢框架的基本自振周期、楼层剪力、楼层位移、楼层加速度和节点的弯矩-转角关系的影响规律,并将部分数值模拟分析结果与拟动力试验结果进行对比,发现这两种研究方法所得结果基本一致。通过该文的分析,得出了节点刚度的变化对结构动力特性影响的一般规律,为今后高层钢结构设计和钢结构规范的修改提供了一定的理论依据。
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| 关 键 词： | 半刚接 钢框架 地震响应 拟动力试验 有限元分析 |
STUDY ON DYNAMIC CHARACTERISTIC OF THE STEEL FRAMES WITH SEMI-RIGID CONNECTION OF TOP AND SEAT ANGLES WITH DOUBLE WEB ANGLE |
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| WAN Hai-ying,WANG Jian-guo,WANG Xiu-xi. STUDY ON DYNAMIC CHARACTERISTIC OF THE STEEL FRAMES WITH SEMI-RIGID CONNECTION OF TOP AND SEAT ANGLES WITH DOUBLE WEB ANGLE[J]. Engineering Mechanics, 2011, 0(4) |
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| Authors: | WAN Hai-ying WANG Jian-guo WANG Xiu-xi |
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| Affiliation: | WAN Hai-ying1,2,WANG Jian-guo2,WANG Xiu-xi1(1.Department of Modern Mechanics,University of Science and Technology of China,Hefei 230009,China,2.School of Civil Engineering,Hefei University of Technology,China) |
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| Abstract: | Based on ANSYS finite element software,the performance of connections and the nonlinearities of geometry and material are considered,and the nonlinear finite element analysis of a steel frame with semi-rigid connections of top and seat angles with double web angles is conducted.The natural period of vibration,shear forces,displacements,accelerations of floors as well as the hysteresis loops of the steel-frame semi-rigid connection are obtained.The numerical results are compared with pseudo-dynamic experimen... |
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| Keywords: | semi-rigid connection steel frame seismic response pseudo-dynamic experimental finite element analysis |
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