新型多层框排架结构工业厂房的耗能减震分析
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摘要
为了提高新型多层框排架结构工业厂房的抗震性能,该文提出了一种适用于该结构的耗能减震连接装置,并研究了该结构的动态特性和地震作用响应。基于该减震连接装置的耗能特性,利用ANSYS有限元软件计算了新型多层框排架结构的周期、振型;并通过输入3条地震波分析了该结构体系在7度罕遇地震作用下的弹塑性反应。结果表明:与采用预埋件焊接的新型多层框排架结构相比,设置耗能减震连接装置的新型多层框排架结构在一、二、三层所产生的平均最大横向位移分别下降51.9%,19.3%,23.1%,平均最大剪力分别下降59.0%,71.6%,75.9%。
In order to improve the aseismic performance of a new multi-layer frame-bent industrial building structure,the linking device for energy dissipation and earthquake mitigation is designed,and the structure dynamic behavior and the response under the earthquake are studied.Based on the dissipation characteristics of the device,structural natural vibration periods and vibration models are computed using the ANSYS saftware,and the elastic-plastic responses of the multi-layer frame-bent industrial building structure are analysed through the input of three seismic waves under the action of rarely occurring 7 degree earthquake.The results show that,compared with those of the structures with welding embeded steel pieces,the averages of the maximum transversal displacement decrease 51.9%,19.3% and 23.1% respectively,and the averages of the maximum shearing force decrease 59.0%,71.6%,75.9% respectively for the first,second and third storey of the structure with the linking device for energy dissipation and earthquake mitigation.
In order to improve the aseismic performance of a new multi-layer frame-bent industrial building structure,the linking device for energy dissipation and earthquake mitigation is designed,and the structure dynamic behavior and the response under the earthquake are studied.Based on the dissipation characteristics of the device,structural natural vibration periods and vibration models are computed using the ANSYS saftware,and the elastic-plastic responses of the multi-layer frame-bent industrial building structure are analysed through the input of three seismic waves under the action of rarely occurring 7 degree earthquake.The results show that,compared with those of the structures with welding embeded steel pieces,the averages of the maximum transversal displacement decrease 51.9%,19.3% and 23.1% respectively,and the averages of the maximum shearing force decrease 59.0%,71.6%,75.9% respectively for the first,second and third storey of the structure with the linking device for energy dissipation and earthquake mitigation.
引文
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[2]赵成文,白阳,高连玉,等.双T板单层工业厂房结构空间刚度的研究[J].沈阳建筑大学学报(自然科学版),2007,23(4):589-592.Zhao Chengwen,Bai Yang,Gao Lianyu,et al.Researchon space double-T plate single floor industrial building’sstructure[J].Journal of Shenyang Jianzhu University(Natural Science),2007,23(4):589-592.
[3]陆文达.马鞍板结构承载性能的有限元分析[J].建筑科学,2011,27(S2):21-25.Lu Wenda.The finite element analysis on load bearingproperty of the saddle shell[J].Building Science,2011,27(S2):21-25.
[4]De la Llera J,Esguerra C,Almazan J L.Earthquake be-havior of structures with cooper energy dissipaters[J].Earthquake Engineering and Structural Dynamics,2004,33(3):329-358.
[5]Dyke S J,Spencer B F,Quast P,et al.Role of control-structure interaction in protective system design[J].Journal of Engineering Mechanics,1995,121(2):322-338.
[6]Symans M D,Charney F A,Whittaker A S,et al.Energy dissipation systems for seismic applications:current practice and recent developments[J].Journalof Structural Engineering,2008,134(1):3-21.
[7]王桂萱,汪宇,赵杰.设置金属阻尼器的某高层建筑耗能减震分析[J].世界地震工程,2011,27(4):1-6.Wang Guixuan,Wang Yu,Zhao Jie.Analysis of energydissipation and earthquake mitigation of a high-risebuilding with metal dampers[J].World EarthquakeEngineering,2011,27(4):1-6.
[8]Kelly J M,Skinner R I,Heine A J.Mechanisms of en-ergy absorption in special devices for use in earthquakeresistant structures[J].Bulletin of New ZealandNational Society for Earthquake Engineering,1972,5(3):63-88.
[9]丁建国.弹塑性反应谱及其在抗震设计中的应用[J].南京理工大学学报,2007,31(6):780-783.Ding Jianguo.Elasto-plastic response spectrum and itsapplications in aseismatic design[J].Journal ofNanjing University of Science and Technology,2007,31(6):780-783.
[10]胡聿贤.地震工程学[M].北京:地震出版社,2006.Hu Yuxian.Earthquake Engineering[M].Beijing:Earthquake Press,2006.
[11]吕西林,周德源,李思明,等.建筑结构抗震设计理论与实例[M].上海:同济大学出版社,2002.Lv Xilin,Zhou Deyuan,Li Siming,et al.Theory and ex-amples of seismic design on building structure[M].Shanghai:Tongji University Press,2002.
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