| 移动车辆作用下弹性基础无限长梁的动力响应 |
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| 引用本文： | 韦忠瑄,孙鹰,沈庆,江召兵.移动车辆作用下弹性基础无限长梁的动力响应[J].固体力学学报,2006(Z1). |
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| 作者姓名： | 韦忠瑄 孙鹰 沈庆 江召兵 |
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| 作者单位： | [1]解放军理工大学工程兵工程学院 [2]解放军理工大学理学院 [3]解放军理工大学工程兵工程学院 南京 [4]211101 |
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| 摘 要： | 通过坐标变换方法,研究了匀速移动的车辆对弹性基础无限长梁的动力响应,给出了位移和内力的计算方法,将车辆简化为移动力,移动质量,移动的振动质量三种模型,比较了它们对梁的影响,对某型带式舟桥的数值分析表明,振动质量模型较合理,给出了浮桥计算时,动力放大系数的建议值
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| 关 键 词： | 移动荷载 弹性基础 无限长梁 动力响应 浮桥 |
DYNAMIC RESPONSES FOR ELASTIC BASE INFINITE BEAM UNDER ACTION OF VEHICLE |
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| Wei Zhongxuan.DYNAMIC RESPONSES FOR ELASTIC BASE INFINITE BEAM UNDER ACTION OF VEHICLE[J].Acta Mechnica Solida Sinica,2006(Z1). |
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| Authors: | Wei Zhongxuan |
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| Institution: | Wei Zhongxuan~ |
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| Abstract: | By the transformation of reference systems,dynamic responses of an elastic base infinite beam under the action of a vehicle with uniform speed are studied.The equations of the displacements and internal forces of the beam are formulated.For the three simulating vehicle models,moving load,moving mass,and vibration mass,the dynamic magnification factors are different.The computational results of a ribbon bridge indicate that the vibration mass model is more reasonable.The new numerical value of dynamic magnification factor for floating bridge is proposed. |
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| Keywords: | moving load elastic base infinite beam dynamic response floating bridge |
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