摘要
在室内试验的基础上,从上部结构、筏基两方面分析施工过程中巨型框架结构、筏基对砂卵石地基的沉降和应力分布影响,结果表明:上部结构对基础的沉降和内力及地基的反力有较明显的影响,而结构层数的影响是有限的;筏板厚度、混凝土等级的增加使基础的沉降和差异沉降减小;板中应力越大,基底反力向边缘集中,分布越不均匀,正应力增大。
The paper based on the experiment,analyzes superstructure and raft foundation influence on sandy pebble soil foundation settlement and stress distribution in construction process,results demonstrate that superstructure influences foundational settlement and internal force and reaction force of subgrade foundation more significant,that of layer of structure finite,adding raft plate thick and concrete classes to make foundational settlement and differential settlement decrease,the center of plate stress increase,reaction force of subgrade foundation concentrate towords the edge,distribution ununiformity,normal stress increase.
作者
何建平
张坤
吴怀忠
HE dianping;ZHANG Kun;WU Huaizhong(Dept.of civil Engineering of Luoyang Institute of Science and Technology,471023,Luoyang,Henan,China;Archin Architects Design Co.Ltd.,100084,Beijing,China)
出处
《建筑技术》
北大核心
2009年第12期1123-1126,共4页
Architecture Technology
基金
四川省教育厅自然基金项目资助(2003A121)
关键词
巨型框架结构
筏基
砂卵石地基
mega frame structure
raft foundation
sandy pebble soil foundation
