摘要
利用有限元软件ANSYS,针对5×5刚性桩复合地基群桩,分析其三维动力特性,计算分析中模型的褥垫层、桩间土、桩体以及基础均假定为线弹性并考虑上部结构的反馈作用.计算分析得到了结构的自振特性,并用分解反应谱法进行了刚性桩复合地基地震响应分析,得出在地震激励下,上部结构-基础-复合地基的结构位移和内力以及分布规律.
Using finite element software ANSYS, we analyzed the 3D dynamic characteristics of 5× 5 pile composite foundation, wherein the calculation and analysis was carded out by assuming that the cushion layer, the soil among piles, the piles and the foundation of the model had linear elasticity and considering the feedback effect of the upper structure. Through analysis, we obtained the self-vibration property of the structure, and carded out the seismic response analysis of the rigid pile composite foundation by response spectrum method to obtain the structure displacement, the internal force and the distribution rule of the upper structure-foundation-composite foundation.
出处
《河南工业大学学报（自然科学版）》
CAS
北大核心
2011年第4期80-83,共4页
Journal of Henan University of Technology：Natural Science Edition
