| 基于悬浮体系的大跨度铁路斜拉桥减震控制方案模拟分析 |
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| 引用本文： | 孙宁,周宏业,陈幼平,余猛.基于悬浮体系的大跨度铁路斜拉桥减震控制方案模拟分析[J].自然灾害学报,1995(Z1). |
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| 作者姓名： | 孙宁 周宏业 陈幼平 余猛 |
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| 作者单位： | 铁道部科学研究院，铁道部科学研究院，铁道部科学研究院，铁道部科学研究院 北京 100081，北京 100081，北京 100081，北京 100081 |
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| 摘 要： | 本文提出了基于悬浮体系的大跨度斜拉桥结构减震控制方案。用El Centro波模拟计算了采用非正常使用状态下,斜拉桥悬浮体系的空间动力反应,尤其是控制截面的内力反应,并与其它约束条件下的结构动力反应进行了对比,证实了采用悬浮体系,实现大跨铁路斜拉桥主动减震控制的可行性;进而利用联想记忆智能化混合结构控制算法,进一步优化结构控制效果,通过仿真计算说明了采用该控制算法实施控制的有效性;最后概略介绍了准备实施模拟试验的控制驱动装置方案,给出了本文的小结。
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| 关 键 词： | 减轻地震灾害 模拟 铁路斜拉桥 减震控制 |
SIMULATION OF VIBRATION CONTROL FOR LONG-SPAN RAILWAY CABLE-STAYED BRIDGE BASED ON SUSPENDED SYSTEM |
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| SunNing ZhouHongye ChenYoupmg YuMeng.SIMULATION OF VIBRATION CONTROL FOR LONG-SPAN RAILWAY CABLE-STAYED BRIDGE BASED ON SUSPENDED SYSTEM[J].Journal of Natural Disasters,1995(Z1). |
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| Authors: | SunNing ZhouHongye ChenYoupmg YuMeng |
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| Abstract: | A vibration-absorbed and isolated method for the long-span railway cable-stayed bridge based on the suspended system is proposed. Space dynamic responses of cable-stayed bridge based on the suspended system have been calculated by using the record of the ElCentro earthquake. Compared with the calculated results of the other restrained conditions, feasibility of the vibration-absorbed and isolated method for the long-span cable-stayed bridges based on the suspended system has been confirmed. For further imporving the control results, an associative-memory-based intelligent hybrid structural control algorithm is presented. By using this method, simulation shows that it could be more effective than other method in the case of long-span cable-stayed bridge control based on the suspened system. Finally, a brief introduction of the scheme for simulation test is outlined. |
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| Keywords: | Earthquake disaster reduction Railway cable-stayed bridge Vibration Control Simulation |
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