| 半刚性连接框架结构的动力响应分析 |
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| 引用本文： | 孙修礼,王永明,管毅,梁书亭,于经. 半刚性连接框架结构的动力响应分析[J]. 工程抗震与加固改造, 2007, 29(4): 18-22 |
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| 作者姓名： | 孙修礼 王永明 管毅 梁书亭 于经 |
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| 作者单位： | 青岛农业大学,山东,青岛,266109;青岛市公用建筑设计研究院有限公司,山东,青岛,266071;青岛市城市规划设计研究院,山东,青岛,266071;东南大学土木工程学院,江苏,南京,210096 |
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| 基金项目： | 青岛农业大学校高层次人才启动基金资助项目 |
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| 摘 要： | 半刚性连接框架结构的动力性能和刚性连接框架结构不同.本文采用有限元分析软件ANSYS建立了刚接、半刚接和铰接三种连接形式的10层框架有限元模型,分析了三种连接形式框架的自振周期和在设计反应谱下的层间位移和变形曲线,并对框架结构在两种不同地震动激励下的响应进行分析,得出结论:半刚性连接使结构低阶振型的自振周期显著增加,而对高阶振型的自振周期影响很小,可以忽略;在地震区采用刚接框架结构并不一定是最好的选择.最后给出了半刚性连接框架结构抗震设计的建议.
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| 关 键 词： | 框架结构 半刚性连接 ANSYS 动力响应 |
| 文章编号： | 1002-8412（2007）04-0018-05 |
| 修稿时间： | 2006-05-31 |
Study on the Dynamic Response of Semi-rigid Frame Structure |
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| Sun Xiu-li,Wang Yong-ming,Guan Yi,Liang Shu-ting,Yu Jing. Study on the Dynamic Response of Semi-rigid Frame Structure[J]. Earthquake Resistant Engineering and Retrofitting, 2007, 29(4): 18-22 |
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| Authors: | Sun Xiu-li Wang Yong-ming Guan Yi Liang Shu-ting Yu Jing |
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| Abstract: | The dynamic response of semi-rigid frame structure is different from that of their rigid counterparts.ANSYS is employed to model ten-story frame structure with three different connection types(rigid,semi-rigid and flexible). Natural period,inter-story drifts and total drifts of the frames subjected to design response spectra excitation are analyzed.Dynamic response of the frames when subjected to two different earthquakes excitation is studied.It is concluded that connection flexibility noticeably increases the natural periods of the lower modes;however,its effect on higher modes is negligible.The use of rigid frames may not be the best option in seismic region.The seismic design suggestions of the frames are proposed. |
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| Keywords: | frame structure semi-rigid connection ANSYS dynamic response |
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