A precise integration method for bridges subjected to moving loads
A precise integration method for bridges subjected to moving loads
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发表时间：
2006
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通讯作者：
Zhang Ya-hui;Zhang Shou-yun;Song-Jin Gang
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作者：
Zhang Ya-hui;Zhang Shou-yun;Song-Jin Gang
精细积分法目前主要用于固定荷载作用下的动力响应分析。本文将精细积分法推广到移动荷载作用下的动力响应分析，并与解析法和Newmark法的计算结果进行了比较。结果表明，推广的精细积分法具有较高的计算精度和计算效率，在车桥耦合动力响应分析中是十分有用的。
The precise integration method has so far be applied to problems with fixed load positions.In this paper,PIM(Precise Integration Method) is extended to problems with moving loads.Numerical results are compared with those due to the analytical method and Newmark method.It is shown that the extended PIM has satisfactory precision and very high efficiency,and is quite useful in the analysis of the dynamic response of coupled vehicle-bridge problems.