摘要
摩擦摆支座(FPB)是一种目前常用的隔震支座,经过国内外学者多年研究与工程人员的长期实践发现,FPB能够有效地降低结构在地震作用下的动力响应,并且不同滑面形式的FPB对结构的隔震效果也不同。本文将FPB应用到平板网架结构中,应用Ls-Dyna有限元软件建立平板网架模型及三种不同滑面形式(球面、抛物面、悬链面)的FPB实体模型,通过分析数值结果可以得到不同滑面形式FPB对平板网架抗震性能的影响规律,为摩擦摆支座在平板网架结构中的应用提供了参考依据。
Friction pendulum bearing （FPB） is a kind of commonly used isolation bearing. By research of many scholars and practice of engineers at home and abroad, it could be obtained that the dynamic responses of structures were effectively reduced by using FPB under the earthquakes, while the isolation effect of FPB with different forms of the sliding surfaces is different. In this paper, the FPBs are applied to a lattice grid structure, and the entity of FPBs and the model of a lattice grid structure is modeled by Ls-Dyna finite element software. The sliding surfaces of FPB include the three different forms, spherical, parabolic, and catenary surface. Seismic performance of the lattice grid structure with FPB is studied by numerical analysis, while some reference basis is provided for the application of FPB in the lattice grid structures.
出处
《地震工程与工程振动》
CSCD
北大核心
2014年第4期201-205,共5页
Earthquake Engineering and Engineering Dynamics
基金
国家自然科学基金重大计划集成项目(91315301)
国家自然科学基金面上项目(51278152)
黑龙江省杰出青年科学基金资助课题(JQ2010-10)
关键词
摩擦摆支座(FPB)
平板网架
滑面形式
抗震性能
LS-DYNA
friction pendulum bearing （FPB）
lattice grid structure
form of the sliding surface
seismic performance
Ls-Dyna
