局部隔振对航站楼框架结构抗震性能的影响研究  

Research on seismic performance of partially isolated airport terminal frame structure

作　　者：方明 王建[2] 王玉娟[1] 魏然 于志超 FANG Ming;WANG Jian;WANG Yujuan;WEI Ran;YU Zhichao(School of Shipbuilding Engineering,Harbin Engineering University,Harbin 150001,China;School of Civil Engineering,Harbin Institute of Technology,Harbin 150001,China)

机构地区：[1]哈尔滨工程大学船舶工程学院,黑龙江哈尔滨150001 [2]哈尔滨工业大学土木工程学院,黑龙江哈尔滨150001

出　　处：《振动工程学报》2025年第4期816-826,共11页Journal of Vibration Engineering

基　　金：国家自然科学基金资助项目(52108450)。

摘　　要：为研究局部隔振对机场航站楼框架结构动力学特性和抗震性能的影响规律,以国内某大型国际机场航站楼为研究对象,通过ABAQUS有限元软件建立三维空间有限元模型,分析结构的竖向振动模态及其有效振型质量,在三向地震作用下分析结构的竖向加速度响应、竖向变形、构件延性、塑性损伤以及残余变形等,揭示局部隔振对机场航站楼框架结构动力学特性和抗震性能的影响规律。结果表明,局部隔振将楼板竖向振动转变为弹簧参与竖向变形的局部区域竖向振动,提高了竖向振动模态的有效振型质量,增强了航站楼框架结构的竖向地震作用。同时,局部隔振过滤了隔振频率以上的高频振动,放大了隔振频率附近的低频振动,增大了隔振区域内竖向振动加速度和位移,并将结构塑性损伤和残余变形集中在隔振区域内跨梁的跨中截面和梁端截面。In order to study the influence of partially isolation on the dynamic characteristics and seismic performance,taking a dominate large terminal airport as a research object,a 3 dimensional finite element model using ABAQUS software is established.Based on this model,the structural vertical vibration modes,the effective mode mass,the vertical vibration acceleration,vertical deformation,component ductility,plastic damage and residual deformation are analyzed to reveal the influence of partially isolation on the dynamic characteristics and seismic performance.It’s demonstrated that partial isolation changes the vibration modes,increases the effective mode mass and magnify the vertical seismic load of the terminal building.At the same time,partial isolation filters the high frequency vibration,enlarges the low frequency vibration near the isolation frequency and increases the vertical acceleration and deformation.The plastic damage and residual deformation has been concentrated on the middle and end sections of innerspan beams.

关 键 词：局部隔振 机场航站楼 大型交通枢纽 三向地震作用 竖向抗震性能 

分 类 号：TU352.12[建筑科学—结构工程]