带有新型角位移阻尼器的木框架结构振动台试验
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摘要
针对木框架结构的特点研发了一种新型粘弹性角位移阻尼器,并对安装了新型粘弹性角位移阻尼器的2层木框架结构进行了振动台试验及数值模拟,与未加阻尼器的木框架进行了对比分析。结果表明:新型角位移阻尼器能够给结构提供一定的刚度和阻尼,并有效减小结构的位移和加速度反应,提高木框架结构的抗震能力;在计算粘弹性阻尼结构的动力反应时,采用Wen模型可以很好地模拟阻尼器对结构的控制作用。
According to the characteristics of the wood frame structures,a new viscoelastic angle-displacement damper was put forward,and the shaking table tests and numerical simulations of two-floor wood frame structures with the new viscoelastic angle-displacement damper were carried out.Furthermore,the wood frame structures with and without dampers were comparatively analyzed.Results show that the new angle-displacement damper can increase the stiffness and damp of structure,decrease the displacement and acceleration reaction effectively,and improve the seismic capacity of wood frame structures;Wen Model can simulate control action of damper on structure well during the calculation of dynamic reaction of viscoelastic damping structures.
According to the characteristics of the wood frame structures,a new viscoelastic angle-displacement damper was put forward,and the shaking table tests and numerical simulations of two-floor wood frame structures with the new viscoelastic angle-displacement damper were carried out.Furthermore,the wood frame structures with and without dampers were comparatively analyzed.Results show that the new angle-displacement damper can increase the stiffness and damp of structure,decrease the displacement and acceleration reaction effectively,and improve the seismic capacity of wood frame structures;Wen Model can simulate control action of damper on structure well during the calculation of dynamic reaction of viscoelastic damping structures.
引文
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[9]王俊鑫.榫卯连接木结构的静力与动力分析研究[D].昆明:昆明理工大学,2008.WANG Jun-xin.Static and Dynamic Analysis of Mor-tise-tenon Conncetion Timber Structure[D].Kun-ming:Kunming University of Science and Technol-ogy,2008.
[10]张敏政.地震模拟实验中相似律应用的若干问题[J].地震工程与工程振动,1997,17(2):52-58.ZHANG Min-zheng.Study on Similitude Laws forShaking Table Tests[J].Earthquake Engineering andEngineering Vibration,1997,17(2):52-58.
[2]徐赵东,赵鸿铁,沈亚鹏,等.粘弹性阻尼结构的振动台试验[J].建筑结构学报,2001,22(5):6-10.XU Zhao-dong,ZHAO Hong-tie,SHEN Ya-peng,et al.The Shaking Table Test of Viscoelastic Struc-ture[J].Journal of Building Structures,2001,22(5):6-10.
[3]王燕华,程文瀼,陈忠范.浅谈地震模拟振动台试验[J].工业建筑,2008,38(7):34-36.WANG Yan-hua,CHENG Wen-rang,CHEN Zhong-fan.Elementary Introduction to Shaking Table Test ofSeismic Simulation[J].Industrial Construction,2008,38(7):34-36.
[4]LU Xi-lin,LI Pei-zhen,CHEN Yue-qing,et al.Shaking Table Model Testing on Dynamic Soil-struc-ture Interaction System[C]//CAEE.Proceedings of13th World Conference on Earthquake Engineering.Vancouver:CAEE,2004:134-145.
[5]LOBO R F,BRACCI J M,SHEN K L,et al.InelasticResponse of R/C Structures with Viscoelastic Braces[J].Earthquake Spectra,1993,9(3):419-446.
[6]欧进萍,邹向阳.高层钢结构粘弹性耗能减振试验与分析[J].哈尔滨建筑大学学报,1999,32(4):1-6.OU Jin-ping,ZOU Xiang-yang.Experiment and Analy-sis Study on Seismic Vibration-Suppressed Effectsof Viscoelestic Energy Dissipation on Steel High-riseStructure[J].Journal of Harbin University of CivilEngineering and Architecture,1999,32(4):1-6.
[7]陈灿,徐伟.薄弱层设置耗能阻尼器支撑的钢框架模型振动台试验[J].世界地震工程,2006,22(4):121-126.CHEN Can,XU Wei.Earthquake Simulation Tests ona Weak-layer Steel Frame Equipped with EDD[J].World Earthquake Engineering,2006,22(4):121-126.
[8]王瑛,史培军,王静爱.中国农村地震灾害特点及减灾对策[J].自然灾害学报,2005,14(1):82-89.WANG Ying,SHI Pei-jun,WANG Jing-ai.Character-istics of Seismic Disaster in Rural Area and RelativeDisaster Reduction Countermeasures in China[J].Journal of Natural Disasters,2005,14(1):82-89.
[9]王俊鑫.榫卯连接木结构的静力与动力分析研究[D].昆明:昆明理工大学,2008.WANG Jun-xin.Static and Dynamic Analysis of Mor-tise-tenon Conncetion Timber Structure[D].Kun-ming:Kunming University of Science and Technol-ogy,2008.
[10]张敏政.地震模拟实验中相似律应用的若干问题[J].地震工程与工程振动,1997,17(2):52-58.ZHANG Min-zheng.Study on Similitude Laws forShaking Table Tests[J].Earthquake Engineering andEngineering Vibration,1997,17(2):52-58.
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