摘要
提供了一种桩-土-筏相互作用的计算模型,将筏板下的桩、土看成弹簧作用在筏板上,简化得到了软弱地基群桩应力和沉降等效分析模型,提出了一种群桩中单桩沉降的计算方法,建立了群桩中单桩非线性刚度的计算模型,并采用三维退化层合单元法对高层建筑主裙楼桩筏基础进行分析.
A method of piles\|raft\|soil's cooperate reaction is distributed. The pile and soil under the plank are simplified into springs. The stiffness of piles is calculated from the P\|S curve of single pile. The settlement of substratum is calculated by layer\|wise summation method. The settlement in the whole foundation, the stress in the raft, the reaction force on the top of piles are analyzed.
出处
《工程设计学报》
CSCD
2003年第4期224-228,232,共6页
Chinese Journal of Engineering Design
关键词
桩筏基础
退化层合单元
有限元法
共同作用
piles-raft foundation
degenerated element
finite element method
cooperate reaction
