软土地基上不均匀沉降建筑物的数值分析  

Numerical Analyses of Asymmetric Sedimentation Buildings on Soft Soil

作　　者：胡琦[1] 蒋军[1] 朱国元[1] 张晖 

机构地区：[1]浙江大学建筑工程学院,浙江杭州310027 [2]浙江凯喜雅房地产开发有限公司,浙江杭州310004

出　　处：《江南大学学报（自然科学版）》2005年第2期158-162,共5页Joural of Jiangnan University (Natural Science Edition)　

摘　　要：不均匀沉降的建筑物,其结构的受力方式会发生变化,而结构内力过大将导致建筑物的损坏,故采用结构、基础与地基共同作用的分析方法,针对一栋倾斜的砖混建筑物建立了其三维实体有限元模型,分析建筑物在使用阶段的沉降规律与内力情况.通过与实际观测结果比较,证明该方法能较好表达建筑物的不均匀沉降情况以及在不均匀沉降情况下结构的应力状态,为非正常状态的结构内力分析提供了一种简便实用的方法.Internal force of asymmetric sedimentation building is different under normal condition. If the degree of internal force is too high, the building will be damaged. Based on the concept of construction、substratum and foundation interaction, the paper established 3-D solid finite element model of the one brick structure, and analyzed its sedimentation and stress. The result proves that this method can analyze the Asymmetric sedimentation and stress condition of Correcting Buildings and judge whether the stress condition of constructs is dangerous. It also proves that this method is direct、reliable、precise and all-round.

关 键 词：共同作用 不均匀沉降 有限元 破坏准则 裂缝 应力 

分 类 号：TU431[建筑科学—岩土工程]