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工业建筑  2010 

移动荷载作用下双参数弹性地基板动力响应分析

DOI: 10.13204/j.gyjz201011023, PP. 93-97

Keywords: 道路工程,双参数弹性模型,土-结构动力相互作用,随机振动,空间相关性,时空相关性,Laplace变换,Hankel变换

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Abstract:

同时考虑干扰源的运动性和随机性,对双参数弹性地基上的无限大Kirchhoff薄板的动力响应进行了研究。获得了运动的确定性和随机性的点源作用下双参数弹性地基上无限大Kirchhoff薄板的Green函数、脉冲响应函数、频率响应函数和位移场的理论解。详细分析了随机动力响应的时域统计特性。在随机性问题的研究中,发现地面系统对运动平稳随机载荷作用下的随机响应不再是平稳过程。为今后进行地面结构可靠度设计和疲劳设计提供了一定的理论依据。

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