抗拔型三重摩擦摆隔震支座数值模拟研究

发布时间：2018-05-02 02:01

本文选题：抗拔型三重摩擦摆隔震支座 + 数值模拟　；参考：《工程抗震与加固改造》2016年06期

【摘要】：考虑隔震技术在大跨空间结构中研究的现状,针对传统三重摩擦摆隔震支座不具备竖向抗拔能力的缺点,基于抗拔型三重摩擦摆隔震支座的专利设计,对抗拔型三重摩擦摆隔震支座进行构造设计。采用ABAQUS有限元分析软件,对抗拔型三重摩擦摆隔震支座进行实体单元建模,模拟低周反复荷载作用下,该支座的滞回特性与自回复特性。研究结果表明:(1)抗拔型三重摩擦摆隔震支座同样具有较宽的隔震范围和良好的自适应性,以及良好的耗能能力。(2)抗拔型三重摩擦摆隔震支座弹簧的设置并不会显著地影响支座的水平特性。(3)由于弹簧的设置,抗拔型三重摩擦摆隔震支座的残余位移较传统三重摩擦摆隔震支座有所减小。(4)随着竖向荷载的增大,刚度增大的同时,滞回环的面积有所增大,因此耗能也同样增大。(5)弹簧的初始张力对抗拔型三重摩擦摆隔震支座的滞回特性并没有很大的影响。
[Abstract]:Considering the present research situation of isolation technology in long-span space structure, aiming at the disadvantage that traditional triple-friction pendulum isolation bearing does not have the ability of vertical pull-out, the patent design of anti-pull-out triple-friction pendulum isolation bearing is based on the patent design. The structural design of the anti-pull-out triple friction pendulum isolation bearing is carried out. ABAQUS finite element analysis software is used to simulate the hysteretic and self-recovery characteristics of the bearing under low cyclic cyclic loading. The results show that the pull-resistant triple-friction pendulum bearing also has a wide isolation range and good self-adaptability. And good energy dissipation capacity. 2) the setting of the anti-pull-out triple friction pendulum bearing spring will not significantly affect the horizontal characteristics of the bearing. 3) because of the setting of the spring, The residual displacement of the triple-friction pendulum isolation bearing is smaller than that of the traditional triple-friction pendulum isolation bearing. 4) with the increase of vertical load, the stiffness increases and the area of hysteresis loop increases. Therefore, the hysteretic characteristics of the triple-friction pendulum isolation bearing are not greatly affected by the initial tension resistance of the spring.
【作者单位】：兰州理工大学土木工程学院;
【基金】：国家创新基金项目(C2621606242) 甘肃省自然科学基金项目(1104ZSB083)资助
【分类号】：TU352.12

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