| 撞击荷载下带吸能装置的钢筋混凝土桥墩动力响应研究 |
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| 引用本文： | 卢红琴,许琦,张南. 撞击荷载下带吸能装置的钢筋混凝土桥墩动力响应研究[J]. 四川建筑科学研究, 2010, 36(6) |
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| 作者姓名： | 卢红琴 许琦 张南 |
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| 作者单位： | 南京工业大学土木工程学院,江苏,南京,210009 |
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| 摘 要： | 对带吸能装置的钢筋混凝土桥墩进行了落锤撞击荷载动力响应分析。根据伯努利-欧拉理论求解其振型,利用拉格朗日方程和落锤运动方程推导其弹性阶段的动力响应和吸能装置的位移时程表达式,从而求得桥墩的动内力。然后,将计算结果与承受轴力的侧向落锤撞击荷载试验结果进行对比,两者符合较好。这表明,本算法用来求解撞击荷载作用下带吸能装置的钢筋混凝土桥墩其弹性阶段的动力响应是可行的,因而具有一定工程应用价值。
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| 关 键 词： | 动力响应 撞击荷载 钢筋混凝土桥墩 吸能装置 |
Research on dynamic response of reinforced concrete pier with energy dissipation device under impact load |
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| LU Hongqin,XU Qi,ZHANG Nan. Research on dynamic response of reinforced concrete pier with energy dissipation device under impact load[J]. Building Science Research of Sichuan, 2010, 36(6) |
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| Authors: | LU Hongqin XU Qi ZHANG Nan |
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| Affiliation: | LU Hongqin,XU Qi,ZHANG Nan(College of Civil Engineering,Nanjing University of Technology,Nanjing 210009,China) |
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| Abstract: | Impact tests were carried out on reinforced concrete pier installed energy dissipation devices under static axial force and lateral impact loading by dropping-weight.Based on the experimental research,the computational method of dynamic response of reinforced concrete pier installed energy dissipation devices under impact load was presented.The pier was simplified as systems of distribution parameters.The lateral deflection of pier was expressed using the generalized coordinate method.Vibration models of th... |
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| Keywords: | dynamic response impact load reinforced concrete circular pier energy dissipation device |
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