土木工程与管理学报2026，Vol.43Issue(3)：69-78,107,11.DOI:10.13579/j.cnki.2095-0985.2026.20250382
非液化土-桩-结构动力体系运动和惯性相互作用分析
Analysis of Kinematic and Inertia Interaction of Non-liquefiable Soil-Pile-Structure Dynamic System
摘要
Abstract
The problem of dynamic soil-pile interaction in a non-liquefiable site was studied by combi-ning numerical simulation and shaking table tests.Based on the shake table tests of soil-pile-structure system at non-liquefiable sites,a cross-correlation analysis of soil displacement-pile moment and upper structure acceleration-pile moment was performed to analyze the influence of kinematic interac-tion and inertial interaction on the seismic response of the pile foundation.By combining the shaking table tests,a finite difference numerical analysis model of the non-liquefiable soil-pile group-upper structure dynamic system was established,and the correctness of this numerical model was verified.By comparing with numerical simulation results,the working mechanisms of kinematic interaction and inertial interaction in the seismic response process of the system were further explored.The results in-dicate that the effect of dynamic interaction on pile seismic response is much greater than that of iner-tial interaction,but inertial interaction still has a relatively significant impact on the response of the pile near the pile head.Select the upper structure mass,damping ratio,and natural vibration period as variables for parameter analysis,focusing on studying the effect of inertial interaction on the pile-structure failure mechanism.Studies shown that the mass,damping ratio and natural vibration period of upper structure are important parameters of inertia interaction in non-liquefiable site.The parameters have little effect on the bending moment of pile foundations,and their influence is mainly observed near the pile body position close to the pile cap.关键词
非液化场地/群桩基础/振动台试验/数值模拟/运动相互作用/惯性相互作用Key words
non-liquefiable site/pile group foundation/shaking table test/numerical simulation/ki-nematic interaction/inertia interaction分类
建筑与水利引用本文复制引用
刘浩,豆鹏飞,许成顺,孙毅龙,杜修力..非液化土-桩-结构动力体系运动和惯性相互作用分析[J].土木工程与管理学报,2026,43(3):69-78,107,11.基金项目
国家自然科学基金(51722801) （51722801）
