腹板摩擦式自定心预应力混凝土框架的抗震性能研究

发布时间：2018-04-19 19:22

本文选题：自定心 + 预应力混凝土框架　；参考：《工程力学》2014年12期

【摘要】：腹板摩擦式自定心预应力混凝土框架是一种新型的抗震结构体系。为分析其抗震性能,对自定心框架的数值模拟方法进行了研究,并利用梁柱节点的低周反复加载试验数据对数值模型进行了验证。由此建立起一榀4跨6层自定心框架的数值模型,并分别对自定心框架和传统现浇节点框架进行了非线性的静力分析和动力时程分析。分析结果表明:在多遇地震作用下,自定心框架和传统现浇框架具有相当的抗震性能;在罕遇地震作用下,传统的现浇节点框架残余变形较大,而自定心框架具有良好的能量耗散能力、自定心能力和抗弯能力,综合的抗震性能优于传统现浇节点框架结构。
[Abstract]:The web friction self-centering prestressed concrete frame is a new anti-seismic structure system. In order to analyze its seismic performance, the numerical simulation method of self-centering frame is studied, and the numerical model is verified by the low-cycle repeated loading test data of Liang Zhu joint. A numerical model of a 4-span 6-story self-centering frame is established and nonlinear static analysis and dynamic time-history analysis are carried out for the self-centering frame and the traditional cast-in-place nodal frame respectively. The results show that the self-centered frame and the traditional cast-in-place frame have considerable seismic performance under the action of frequent earthquakes, and the residual deformation of the traditional cast-in-place joint frame is larger under the rare earthquake. The self-centered frame has good energy dissipation ability, self-centering ability and bending resistance, and the comprehensive seismic performance is better than the traditional cast-in-place joint frame structure.
【作者单位】：东南大学混凝土及预应力混凝土结构教育部重点实验室;
【基金】：国家自然科学基金项目(51078075,51378107) 新世纪优秀人才支持计划项目(NCET-10-0326) 教育部博士研究生学术新人奖项目东南大学优秀博士学位论文基金项目
【分类号】：TU378.4

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