基于SMA—橡胶支座和碟形弹簧的球面网壳结构多维隔震

英文篇名：Multi-Dimensional Seismic Isolation of Spherical Lattice Shell Structures Based on SMA-Rubber Bearing and Disc Spring Device
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 Transportation 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：多维隔震 ; 球面网壳 ; SMA—橡胶支座 ; 碟形弹簧 ; 振动控制
英文关键词：multi-dimensional seismic isolation ; spherical lattice shell ; SMA-rubber bearing ; disc spring ; vibration control
出版日期：2012-01-20
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：2012
期：01
出版单位：建筑科学

摘要

球面网壳结构是典型的大跨度空间结构,地震时水平和竖向地面运动分量对其地震响应的影响均十分显著。为了提高其抗震性能,采用SMA—橡胶支座和碟形弹簧形成分段隔震机制以降低结构的多维地震响应。本文建立了SMA—橡胶支座和碟形弹簧的隔震计算模型。进而,根据球面网壳结构多维隔震的动力方程,针对某单层球面网壳结构,开展了其在不同地震作用下的多维隔震控制研究。由时程响应的数值模拟结果可见,多维隔震网壳结构的杆件内力、加速度响应和位移响应较无控结构有了显著的降低,从而验证了所提出的多维隔震技术对于保护球面网壳结构免遭地震灾害破坏的有效性。
Spherical lattice shell is a typical long span space structure and its seismic response is evidently influenced by horizontal and vertical components of ground motion.In this paper,SMA-rubber bearings and disc spring devices are developed to form a type of segmented isolation mechanism to improve the seismic performance of the spherical lattice shell structures.A calculation model to capture the isolation behavior of the SMA-rubber bearing and disc spring device is established.According to dynamic equations for the multi-dimensional isolated spherical lattice shell structures,the seismic isolation studies are executed for a single-layer spherical lattice shell under the multi-component earthquake ground motions.The numerical simulation results show that the internal force,acceleration and displacement of the lattice shell are reduced significantly by using such isolation devices.Therefore,the presented multi-dimensional isolation technology can be effectively used to protect the lattice shell structures from damages of earthquake.

引文

[1]杨迪雄,李刚,程耿东.隔震结构的研究概况和主要问题[J].力学进展,2003,33(3):302～312.
    [2]徐赵东,李爱群,叶继红.大跨空间网壳结构减震控制的研究与发展[J].振动与冲击,2005,24(3):59～61.
    [3]Ikuo Tatemichi,Mamoru Kawaguchi.A new approach to seismicisolation:possible application in space structures[J].International Journal of Space Structures,2000,15(2):145～154.
    [4]于志伟,支旭东,范峰,沈世钊.K8型单层球面网壳支座减震[J].哈尔滨工业大学学报,2009,41(4):7～11.
    [5]张玉敏,苏幼波,梁军,苏经宇,瞿伟廉.碟形弹簧竖向减震装置的研究[J].哈尔滨工业大学学报,2005,37(12):1678～1680.
    [6]赵亚敏,苏经宇,周锡元,隋允康.碟形弹簧竖向隔震结构振动台试验及数值模拟研究[J].建筑结构学报,2008,29(6):99～106.
    [7]王社良.形状记忆合金在结构振动控制中的应用[M].西安:陕西科学技术出版社,2000.
    [8]陆文遂.碟形弹簧的计算设计与制造[M].上海:复旦大学出版社,1980.
    [9]Mauro Dolce,Donatello Cardaone,Roberto Marnetto.Implementation and testing of passive control devices based onshape memory alloys[J].Earthquake Engineering and StructuralDynamics,2000,29:945～968.
    [10]陈海泉,李中献,李延涛.应用形状记忆合金的高层建筑结构智能隔震[J].天津大学学报,2002,35(6):761～765.
    [11]李惠,毛晨曦.新型SMA耗能器及结构地震反应控制试验研究[J].地震工程与工程振动,2003,23(1):133～139.
    [12]Graesser E J,Cozzarelli F A.Shape memory alloys as newmaterials for aseismic isolation[J].Journal of EngineeringMechanics,ASCE,1991,117(11):2590～2608.
    [13]庄鹏,薛素铎,李彬双,SMA—橡胶支座隔震系统的动力响应研究[J].振动与冲击,2006,25(3):85～89.
    [14]庄鹏,薛素铎,李彬双.SMA—橡胶支座滞回性能的理论模型[J].北京工业大学学报,2006,32(10):890～894.
    [15]薛素铎,董军辉,卞晓芳,李彬双.一种新型形状记忆合金阻尼器[J].建筑结构学报.2005,26(3):45～50.