PHC管桩单桩振动台试验与数值模拟对比分析  

Contrastive Analysis on Shaking Table Tests and Numerical Simulation of Single PHC Tubular Pile

作　　者：邢克勇[1] 江松[1] 姚升康[1] 赵春晓[1] 张华文[1] 

机构地区：[1]河北省电力勘测设计研究院,石家庄050031

出　　处：《华北地震科学》2014年第1期33-37,共5页North China Earthquake Sciences

基　　金："预应力管桩在高烈度地震区火力发电厂中的应用研究"项目

摘　　要：利用振动台对PHC管桩进行单桩承台模型试验;同时将土体-PHC管桩-上部结构视为共同工作整体,建立三维有限元模型,再以ABAQUS软件为计算平台,对单桩试验工况下的地震反应进行数值模拟计算,并将试验结果与数值模拟计算结果进行对比分析。结果表明:数值模拟和振动台模型试验基本吻合,两者得到的地震反应影响体现出相似的规律性,印证了模型试验的可靠性和数值模型的合理性。Single pile cap model of PHC tubular pile is tested on the shaking table and 3D finite element model is established considering the soil-PHC tubular pile-superstructure as integrity. The ABAQUS soft- ware is taken as calculation platform to numerically simulate the seismic responses under single pile test conditions. The simulation results and the shaking table rest records are compared in detail. It indicates that the simulation results are basically identical with those of shaking table tests, and both of them reflect similar seismic response regularity. The reliability of model tests and rationality of numerical simulation are proved.

关 键 词：PHC管桩 单桩承台 振动台试验 数值模拟计算 

分 类 号：P315.9[天文地球—地震学] TU317[天文地球—固体地球物理学]