考虑结构—桩—土相互作用的智能控制研究  

The Intelligent Control on Structure,Piles and Soil Interaction

作　　者：李延涛[1] 周占学[1] 

机构地区：[1]河北建筑工程学院

出　　处：《河北建筑工程学院学报》2009年第4期1-2,10,共3页Journal of Hebei Institute of Architecture and Civil Engineering

基　　金：河北省教育厅自然科学重点项目(ZH2006014);建设部研究开发项目(06-K1-11)

摘　　要：对于桩承高层建筑与周围土体组成的相互体系采用样条子域法、半解析无限元法和直梁的弯剪单元模型相耦合的方法进行建模,并结合瞬时最优控制算法,分析了其对结构磁流变(MR)控制的影响作用.算例表明,考虑结构-桩-土相互作用与不考虑相互作用的固定端体系的磁流变阻尼器控制计算结果有一定差异,计算的差值可达5%以上.The interaction system which includes pi1e-supported tall buildings with the adjacent medium of soil subject to the impact of earthquake is formulated in terms of the spline subdomain method,semi-analytical infinite element method and the bend-shear model of beam element,respectively. Taking advantage of the instantaneous optimal control algorithm,structure,piles and soil interaction effect on the semi-active control is considered. It is shown that the results of structure control have obvious difference between the interaction system and the fixed-end system.The response of the former may be less about 5 percent or more than the latter calculated in the paper.

关 键 词：相互作用 样条子域法 智能控制 

分 类 号：TU435[建筑科学—岩土工程]