全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...

基于能量的多层框架结构“加层减震”体系参数优化研究

, PP. 13-19

Keywords: 铅芯叠层橡胶支座,框架结构,加层,TMD,减震,应变能,优化

Full-Text   Cite this paper   Add to My Lib

Abstract:

提出了基于能量的参数优化准则,即以隔震层抗侧刚度和阻尼比为优化参数,以隔震层的应变能期望值占结构总应变能期望值的比例为目标函数,在改进的Kanai-Tajimi模型激励下,使该比例取极大值。利用上述优化准则,对一加层工程实例进行了参数优化。结果表明目标函数受隔震层抗侧刚度的变化影响较大,受阻尼比变化影响很小;而总应变能对阻尼比变化较敏感,而对抗侧刚度的变化不敏感。因此参数优化时,可以考虑保持抗侧刚度不变,增大阻尼比而保证目标函数值变化不大,同时可以减少结构的总应变能。扫频分析表明从应变能角度优化参数拓宽了频率控制范围,而且可以达到很好的控制效果,特别是在共振区域,各层响应较加层前均有较大的减小,同时时程分析也表明减震效果比较显著,证明了该优化方法的可行性及合理性。

References

[1]  谢军龙,周福霖.多层房屋结构TMD“加层减震”试验研究和应用[J].世界地震工程,1998,14(4):57-60.Xie Junlong,Zhou Fulin.Test Investigation Of Seismic Reduction Using Additional Stories As a TMD And Its Application To Exsisting MultistoryBuildings[J].world earthquake engineering,1998,14(4):57-60.
[2]  牛金龙,施卫星.房屋建筑顶层采用橡胶支承的消能减震[J].建筑结构,2002,32(6):63-65.Niu Jinlong,Shi Weixing.Reduction Vibration with Rubber Shock Absorber Under Top Storey in the Building[J].Building Structure,2002,32(6):63-65.
[3]  施卫星,王群.层间隔震原理与方法[J].工程抗震,1997,12:20-22.Shi weixing,Wang qun.Principles and Methods of storey isolation[J].Earthquake Resitant Engineering,1997,12:20-22.
[4]  Villaverde.A seismic Roof Isolation System Feasibility Study with 13-Story Building.Journal of Structural Engineering[J].2002,2:188-196.
[5]  钱国桢,池毓蔚.地震波激励下加层结构被动控制最优参数求解[J].工程抗震,1998,3:36-38.Qian guozhen,Chi yuwei.Optimal Parameter Solution Of Adding-Storey Structure Undering The Stimulus Of Earthquake wave[J].EarthquakeResitant Engineering,1998,3:36-38.
[6]  罗小华,程超.TMD 原理应用在框架房屋结构加层减震时最优参数值的探讨[J].四川建筑科学研究,2000,26(2):20-22.Luo xiaohua,Chen chao.Optimal Parameter Research Of TMD When it is Applied to Adding Story and Seismic Decrease of Frame Buildin[J].Building Science Research of Sichuan,2000,26(2):20-22.
[7]  李春祥,熊学玉.加层结构中 TMD 减震优化设计方法[J].工业建筑,1999,29(3):27-29.Li chunxiang,Xiong xueyu.The Optimum Design Method Of TMD In Extension-Storey Structures[J].Industrial Construction,1999,29(3):27-29.
[8]  郑国琛,祁皑,阎维明.加层减震结构振动台试验分析[J].地震工程与工程振动,2007,27(2):164-170.Zheng guochen,Qi ai,Yan weiming.Research on shaking table test for structures with added story and seismic response decrease[J].EarthquakeandEngineering Vibration,2007,27(2):164-170.
[9]  李奉阁,赵根田,田志昌.利用结构增层聚集和耗散能量[J].地震工程与工程动,2002,22(5):152-155.Li Fengge,Zhao gentian,Tian zhichang.Gathering and dissipating energy by increasin building floors[J].Earhquake and Engineering Vibration,2002,22(5):152-155.
[10]  田志昌.结构中地震能量的集中与耗散[J].西安冶金建筑学报,1993,25(4):379-384.Tian zhichang.Shift and Dissipation of Seismic Energy In Structures[J].Journal of Xi’an University of Architecture & technology,1993,25(4):379-384.
[11]  刘礼君.基于能量的轻钢加层“TMD 减震”参数优化研究[D].江西:华东交通大学,2008.6.Liu lijun.Energy-based Optimization for an Adding-storey Stucture of Light steel Frame Using Lead Laminated Rubber Bearings as a TMDsystem.[D].Jiangxi:East Jiaotong University,2008.6.
[12]  欧进萍,牛荻涛.地震地面运动随机过程模型的参数及其结构效应[J].哈尔滨建筑工程学院学报,1990,23(2):24-34.Ou jinping,Niu ditao.Parameters in the Random Process Models of Earthquake Ground Motion and Their Effects on the Response of Structures[J].Journal of Harbin University of Civil Engineering and Architecture,1990,23(2):24-34.
[13]  李宏男.采用摩擦垫层及阻尼器对外套加层结构体系的减振研究[J].地震工程与工程振动,2000,20(4):126-132.Li hongnan.Study on seisimic response reduction for floor-increasing building system with friction bedding and dampers[J].Earhquake and Engi-neering Vibration,2000,20(4):126-132.
[14]  周福霖.工程结构减振控制[M].北京:地震出版社,1997:56-59.Zhou Fulin.Damping Control of Engineering Structure[M].Beijing:Earthquake Press,1997:56-59.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133