| 巨-子型控制结构体系在竖向地震作用下的反应分析 |
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| 引用本文： | 张洵安,薛荣刚.巨-子型控制结构体系在竖向地震作用下的反应分析[J].郑州大学学报(工学版),2005,26(3):41-45. |
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| 作者姓名： | 张洵安 薛荣刚 |
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| 作者单位： | 西北工业大学力学与土木建筑学院,陕西,西安,710072 |
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| 摘 要： | 分析了竖向地震作用下巨-子型控制结构体系MSCSS(Mega-sub eontrolled structural system)的反应机理,提出了带附加柱的MSCSS.采用串并联质点系计算模型,对带附加柱与不带附加柱MSCSS进行了时程对比分析,计算结果表明:带附加柱与不带附加柱MSCSS相比,带附加柱MSCSS不仅可以在结构上解决巨型梁的大跨度问题,而且在竖向地震下具有较好的控制效果.基于随机振动复模态理论,采用非平稳地震动模型,进一步探讨了带附加柱MSCSS的子结构层数和巨(型)梁刚度等参数对结构反应的影响,研究表明子结构层数和巨(型)梁刚度等参数对带附加柱MSCSS巨型梁的位移和加速度响应的影响均十分显著.
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| 关 键 词： | 巨-子型控制结构体系 竖向地震 复模态理论 非平稳地震动 |
| 文章编号： | 1671-6833(2005)03-0041-05 |
| 修稿时间： | 2005年3月14日 |
Investigation of Vertical Seismic Responses of Mega-sub Controlled Structural System |
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| ZHANG Xun-an,XUE Rong-gang.Investigation of Vertical Seismic Responses of Mega-sub Controlled Structural System[J].Journal of Zhengzhou University: Eng Sci,2005,26(3):41-45. |
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| Authors: | ZHANG Xun-an XUE Rong-gang |
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| Abstract: | The response mechanism of the mega_sub controlled structural system with additional columns subjected to vertical seismic action is studied in this paper. The member analytical model is adopted in the research. A time history analysis is used to prove its controlling effectiveness in comparison with the mega_sub controlled structural system without additional columns. Based on the complex mode analysis theory of random vibration, the effects of sub_frame floor numbers and mega_beam stiffness on the responses of mega_sub controlled structural system with additional columns under the vertical non_stationary seismic action are presented. The results of the calculation show that the effects of sub_frame floor numbers and mega_beam stiffness on the responses of mega_sub controlled structural system with additional columns are very remarkable. |
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| Keywords: | mega_sub controlled structural system vertical seismic complex mode theory non_stationary seismic excitation |
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