东南大学学报（自然科学版）2017，Vol.47Issue(4)：717-723,7.DOI:10.3969/j.issn.1001-0505.2017.04.015
矩形脉冲激励下自复位墙的摇摆响应
Rocking response of self-centering wall under rectangular pulse
摘要
Abstract
To improve the seismic performance of self-centering wall under strong ground motion, the rocking response of the self-centering wall under rectangular pulse is investigated.Based on the no-slipping and rigid base assumptions, dynamic equations of a self-centering wall under rectangular pulse are derived.The exact analytical solutions considering the energy dissipation in the rocking process are derived from the simplified dynamic equations with minor rocking angle assumption.A specific self-centering model is analyzed with the analytical solutions, and the results of analytical solutions are verified by the numerical solutions.Additionally, on basis of the restitution factor in equations, the method for calculating the equivalent viscous damping ratio for the self-centering wall is given as well.The influence of different materials between wall base and foundation on the rocking response of a self-centering wall is analyzed.The results show that the analytical solution can reflect the rocking behavior under rectangular pulse.The equivalent viscous damping ratio decreases with the increase of the restitution factor, and there is a linear correlation between them.With the increase of the rocking period, the equivalent viscous damping ratio increases in the rocking process.关键词
自复位墙/摇摆响应/矩形脉冲/解析解/等效黏滞阻尼Key words
self-centering wall/rocking response/rectangular pulse/analytical solution/equivalent viscous damp ratio分类
建筑与水利引用本文复制引用
周臻,朱冬平,谢钦..矩形脉冲激励下自复位墙的摇摆响应[J].东南大学学报（自然科学版）,2017,47(4):717-723,7.基金项目
国家自然科学基金资助项目(51208095)、江苏省"青蓝工程"资助项目、江苏省六大人才高峰资助项目(JZ-002)、江苏省普通高校研究生实践创新计划资助项目(SJLX15_0033). （51208095）
