分段多项式Duhamel积分在单层工业厂房动力分析中的应用

Application of Duhamel integral in dynamic analysis of single-storeyed factory building

在本文中用一种新的动力分析方法来进行单层工业厂房的动力反应计算．该方法能够精确地计算数值化地震波作用下单层工业厂房结构的动力反应．该方法是利用分段线性插值多项式来逼近任意动力荷载，当动力荷载可表示为分段线性多项式时，Ｄｕｈａｍｅ积分是有精确解的，因而和传统逐步积分法相比，该方法不但具有较高的计算精度，而且大大减少了计算工作量．

In this paper is introduced a new technique for the calculation of the dynamic response of single-storeyed factory building subjected to numerical earthquake wave. The arbitrary dynamic load capable of being expressed as linear piecewise interpolation polynomial can be accurately calculated by approximation. The technique has a higher accuracy and involves less calculation than the traditional step-by-step integration method.