空间桁架理论在托换结构设计中的试验研究与理论分析  

Experimental Study and Theoretical Analysis of Space Truss Theory in Design of Underpinned Structure

作　　者：闫玉红[1] 袁广林[1] 周宁[1] 

机构地区：[1]中国矿业大学建筑工程学院,江苏徐州221008

出　　处：《水利与建筑工程学报》2006年第1期40-43,共4页Journal of Water Resources and Architectural Engineering

摘　　要：在顶升纠偏技术中,根据空间桁架理论,托换结构简化为拉一压杆模型。本文用试验的形式对这一方法的适用性进行研究。通过对模型的加载试验,分析承台的受力特征、破坏过程、形态及其极限荷载,来验证用空间桁架理论设计托换结构的合理、安全和经济的特性。为工程实践提供了实践和理论依据。In rectified technique by raising, the underpinned structure will be simplified to the tension-compression bar model. This paper studies the adaptability of the method by tests. Through the loading test to the model, the stressing characteristics, failure process, feature, and the limit load of the bearing platform are analyzed to check the reasonable, safe and economic characteristics of using the space truss theory to design the underpinned structure. This provides the practical and theoretical basis for the performance of the project.

关 键 词：空间桁架理论 托换结构 拉—压杆模型 加载试验 

分 类 号：TU317[建筑科学—结构工程]