| 巨型钢框架-拉索支撑结构的三种抗震分析方法比较 |
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| 引用本文： | 朱佳锋,王飞,彭小龙.巨型钢框架-拉索支撑结构的三种抗震分析方法比较[J].钢结构,2014(3):4-6,17. |
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| 作者姓名： | 朱佳锋 王飞 彭小龙 |
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| 作者单位： | 江苏科技大学土木工程系,江苏镇江212003 |
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| 基金项目： | 中华人民共和国住房和城乡建设部科学计划项目（2012-k2-28）. |
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| 摘 要： | 针对新型巨型钢框架-拉索支撑结构体系的抗震性能,采用Pushover分析、振型分解反应谱分析及时程分析三种方法,分别研究典型巨型钢框架-拉索支撑结构在8度多遇地震作用下的底部剪力和层间位移角。结果表明,三种不同抗震分析方法得到的底部剪力和层间位移角最大值由小到大的顺序均为:Pushove分析、反应谱分析、时程分析。由于时程分析法能更好地反映巨型钢框架-拉索支撑结构顶部的地震作用响应,在评估其抗震性能时应作为其他两种方法的补充。
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| 关 键 词： | 巨型钢框架 拉索支撑 Pushover分析 振型分解反应谱法 时程分析 |
COMPARISON OF THREE ANTI-SEISMIC ANALYSIS METHODS OF MEGA STEEL FRAME-CABLE BRACING STRUCTURES |
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| Zhu Jiafeng Wang Fei Peng Xiaolong.COMPARISON OF THREE ANTI-SEISMIC ANALYSIS METHODS OF MEGA STEEL FRAME-CABLE BRACING STRUCTURES[J].Steel Construction,2014(3):4-6,17. |
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| Authors: | Zhu Jiafeng Wang Fei Peng Xiaolong |
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| Affiliation: | Zhu Jiafeng Wang Fei Peng Xiaolong(Department of Civil Engineering, Jiangsu University of Science and Technology, Zhenjiang 212003, China) |
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| Abstract: | Aimed at the new mega steel frame-cable bracing structure, th.e Pushover analysis, the mode- superposition response spectrum method and the time history analysis were applied to investigate its seismic performance. By using these three methods, the base shear and inter-story drifts of a typical mega steel frame cable bracing structure under 8 degree frequent earthquake were calculated. The results showed that the sequence of base shear and maximium inter-story drift obtained by using the different methods, from small to large, is the Pushover analysis, response spectrum, and time history analysis. The time history analysis can provide tip sidesway of the sturcture more accurately and is recomanded for analyzing seismic performance of mega steel frame cable bracing sturctures. |
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| Keywords: | mega steel frame cable bracing Pushover analysis mode-superposition response spectrum method time-history analysis |
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