精细积分法在地基震动响应分析中的应用  

Application of precise integration method to analysis of foundation vibration response

作　　者：李渊印[1] 金先龙[1] 李根国[2] 李治[1] 

机构地区：[1]上海交通大学高性能计算中心,上海200030 [2]上海超级计算中心,上海201203

出　　处：《岩土力学》2008年第8期2252-2256,共5页Rock and Soil Mechanics

基　　金：国家自然科学基金资助项目(No.60273048)

摘　　要：精细积分法是求解结构动力响应问题的一种高精度算法,将其应用于地基震动响应问题的求解。在不影响算法精度的前提下,采用节省存储量的矩阵向量乘法和精细积分级数解,降低了精细积分法的存储需求。开发了地基震动响应分析程序,并对一重大工程的建筑地基进行了震动响应分析,通过与著名有限元分析软件Nastran的计算结果进行对比,证明前述方法和程序是正确的。The precise integration method is a high precision algorithm for structural dynamic response.The method is applied to foundation vibration response.In order to reduce storage requirement,matrix-vector multiplication that saves storage,and series solution are adopted;moreover,the precision of precise integration method isn’t affected.A corresponding program is developed for analysis of foundation vibration response.A building foundation of an important project is analyzed.The results are compared with the results of Nastran,a famous finite element analysis software;and correctness of above-mentioned methods and program is validated.

关 键 词：精细积分 地基 震动响应 软件开发 

分 类 号：TU435[建筑科学—岩土工程]