框架结构-地基刚度对结构抗地表变形的影响  

The Influence of Frame Structure Stiffness and Foundation Stiffness on the Surface Deformation of the Structure

作　　者：郑玉莹[1] 谢伟[1] 王秋分[1] ZHENG Yuying;XIE Wei;WANG Qiufeng(Xuhai college,China University of Mining and Technology,Xuzhou 221000,China)

机构地区：[1]中国矿业大学徐海学院,江苏徐州221000

出　　处：《四川建材》2018年第3期56-57,共2页Sichuan Building Materials

基　　金：江苏省高校自然科学研究面上项目(16KJB560021);江苏建筑节能与建造技术协同创新中心开放基金;中国矿业大学土木工程环境灾变与结构可靠性江苏省重点实验室开放基金(JSKL2014K08)

摘　　要：本文建立有限元模型研究上部结构、基础和地基三者刚度比例关系对结构抗地表变形作用的影响。通过改变上部结构层数、梁柱线刚度比、地基参数,得到地表变形作用下上部框架内力、土体响应等结果。发现地表变形作用下上部结构、基础、地基三者之间既共同作用也相互影响。增加上部结构刚度会导致上部结构自身附加内力的增加;地基刚度越大,上部框架柱脚因地表变形产生的附加应力值越大。This paper establishes a finite element model to study the influence of the structure,foundation and foundation stiffness ratio on the anti-surface deformation of the structure.By changing the layer number of the upper structure,beam line stiffness ratio,the foundation parameters,get the internal force of the framework the surface and the soil response results under the surface deformation.The analysis shows that the superstructure、foundation、foundation of the surface deformation plays a common role and influences each other.Increasing the stiffness of the superstructure will result in additional internal forces of the superstructure itself.The higher the foundation stiffness,the greater the additional stress value of the upper frame column

关 键 词：上部结构 基础 地基 刚度 抗变形 

分 类 号：TU391[建筑科学—结构工程]