摘要
采用有限元方法可建立地震反应计算模型。为进一步验证理论计算的可行性以及分析地震对桥梁桩基的影响 ,在 1∶50的基础动力结构模型试验中 ,应用相似原理将模拟地震波作用于桥梁桩基模型上来研究模型桩身不同深度处的轴力和土层位移的变化情况。试验结果表明模型桩轴力、土层位移与用两维四节点有限元预测原型的相应指标是相似的。
This paper provides a model test which simulates pile foundation of bridge-soil interaction by an earthquake wave to verify that the theoretical analysis is possible with the help of finite element. The model test scaled 1∶50 presents results of pile axis forces and soil displacement. The results have proved to be similar to calculating values given by computer in the case of two-dimensional and quad-node finite element.
基金
铁道部铁路科技研究开发计划项目!( 97G2 8-B)
