双层球面网壳屋盖结构的摩擦摆层间隔震研究

英文篇名：Mid-Story Isolation of Double-layer Spherical Lattice Shells using FPS Bearings
中文刊名：建筑科学
英文刊名：Building Science
作者：庄鹏 ; 薛素铎
英文作者：ZHUANG Peng1 ; XUE Su-duo2(1.School of Civil and Traffic Engineering ; Beijing University of Civil Engineering and Architecture ; Beijing 100044 ; China ; 2.College of Architecture and Civil Engineering ; Beijing University of Technology ; Beijing 100124 ; China)
中文关键词：网壳 ; 屋盖 ; 摩擦摆 ; 层间隔震 ; 支座 ; 地震响应
英文关键词：lattice shell ; roof ; friction pendulum system ; mid-story isolation ; bearings ; seismic response
出版日期：2010-11-20
机构：北京建筑工程学院土木与交通工程学院;北京工业大学建筑工程学院;
年：2010
期：11
出版单位：建筑科学

摘要

为了深入研究摩擦摆(FPS)隔震网壳结构的抗震性能,将这种隔震装置用于双层球面网壳结构的层间隔震。首先介绍了FPS支座的减振原理,建立了层间隔震网壳结构的运动方程。通过层间隔震双层球面网壳屋盖模型在三向地震作用下的时程分析,全面考察了屋盖结构、支承结构和FPS支座的地震响应。研究结果表明,FPS支座有利于保护整体结构,可有效地应用于球面网壳屋盖结构的层间隔震。
To study seismic performances of lattice shell structures with Friction Pendulum System(FPS),such a seismic isolation device is applied to mid-story isolation of double-layer spherical lattice shell structures.Vibration mitigation principle of the FPS is briefly described.Equations of motion of the mid-story isolated lattice shell with FPS bearings are established.Then,time-history analyses are performed for mid-story isolation of roof of double-layer spherical lattice shell models subjected to three-component seismic excitations,and the seismic responses of the superstructures,substructures and the FPS bearings are investigated comprehensively.The results show that the FPS bearings are of benefit to protecting the whole structures and can be effectively utilized to the mid-story isolation of spherical lattice shell roofs.

引文

[1]Zayas V,Mahin S.A simple pendulum technique for achieving seismic isolation[J].Earthquake Spectra,1990,6(2):317～333.
    [2]Mokha A,Amin N,Constantinou M C,Zayas V.Seismic isolation retrofit of large historic building[J].Journal of Structural Engineering,1996,122(3):298～308.
    [3]Roy A.Imbsen.Use of isolation for seismic retrofitting bridges[J].Journal of bridge engineering,2001,6(6):425～438.
    [4]Jose L.Almazan,Juan C.de la Llera.Physical model for dynamic analysis of structures with FPS isolators[J].Earthquake Engineering and Structural Dynamics,2003,32:1157～1184.
    [5]Selahattin Ersoy,M.Ala Saadeghvaziri,Gee-Yu Liu e al.Analytical and experimental seismic studies of Transformers isolated with friction pendulum system and design aspects[J].Earthquake Spectra,2001,17(4):569～595.
    [6]马良喆，陈永祁.摩擦摆隔震支座在储液罐隔震的应用[J].工业建筑,2009,35(增刊):494～498.
    [7]李大望,庄鹏,周锡元.结构内设备的摩擦摆响应分析[J].世界地震工程,2004,20(4):90～93.
    [8]薛素铎,赵伟,李雄彦.摩擦摆支座在单层球面网壳中的隔震分析[J].世界地震工程,2007,23(2):41～45.
    [9]薛素铎,赵伟,李雄彦.摩擦摆支座在单层球面网壳结构隔震控制中的参数分析[J].北京工业大学学报,2009,35(7):933～938.
    [10]Constantinou M,Mokha A,Reinhorn A.Teflon bearing in base isolationⅡ:modeling[J].Journal of Structural Engineering,1990,116(2):455～474.