【摘要】 通过分析现有高桩承台体系的缺点入手,引入摇摆抗震技术,提出了分离式承台系统,介绍了该体系的基本特性,并从该体系的主要力学特点出发,采用SAP2000有限元分析软件建立了开放式与限位式两种分离式承台数值模型,在分析该模型的可行性之后,在此基础上建立了简支桥梁模型,分析了几项主要的动力响应,包括墩底弯矩、边桩拔出力、墩顶位移以及承台抬起高度,最后分析了该体系的优势以及未来需要进一步研究的方向。更多还原

【Abstract】 In this paper,a separated pile-cap foundation design was presented by introducing rocking system into the existing techniques.Two finite elements models of the separated pile-cap foundation,the free cap and the controlled cap,were built with SAP2000 after the introduction of basic mechanical properties of the system.After a feasibility study,the simple supported beam models were constructed by using the separated pilecap foundation.Main behaviors of the system under an artificial seismic wave were investigated based on nonlinear time-history analyses.At the end of the paper,the advantages and potentials of the system were discussed.更多还原