Study on Dynamic Properties of a Concrete Filled Tubular (CFT) Arch Bridge Constructed in China
Study on Dynamic Properties of a Concrete Filled Tubular (CFT) Arch Bridge Constructed in China
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发表时间：
2006-07
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通讯作者：
W. Qingxiong;T. Kazuo;Chen Bao-chun;Nakamura Shozo
中科院分区：
文献类型：
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作者：
W. Qingxiong;T. Kazuo;Chen Bao-chun;Nakamura Shozo
讨论了拉索松动对斜拉索非线性参数振动的影响。为了计算没有小垂度限制的斜拉索的松弛，必须首先推导斜拉索的运动方程。利用这些方程和有限差分方法，分析了斜拉索松动对斜拉索在周期支承激励下的非线性参数响应的影响。为了解决发散问题，提出了一种考虑弯曲刚度和阻尼力的新技术。文中还给出了斜拉索中产生压力的区域。
The effect of cable loosening on the nonlinear parametric vibrations of inclined cables is discussed in this paper. In order to calculate loosening for inclined cables without a small-sag limitation, it is necessary to first derive equations of motion for an inclined cable. Using these equations and the finite difference method, the effect of cable loosening on the nonlinear parametric responses of inclined cables under periodic support excitation is evaluated. A new technique that takes into account flexural rigidity and damping is proposed as a solution to solve the problem of divergence. The regions that generate compressive forces in inclined cables are also shown.