新型加劲软钢阻尼器性能与试验
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摘要
为研究菱形开洞的新型加劲软钢阻尼器的耗能减震性能,分析其构造形式和减震机理,并对六组阻尼器单片进行了循环加荷试验,给出了其恢复力模型;分别对整体刚度相同的装有加劲软钢阻尼装置和装有普通支撑的三层钢框架进行了振动台对比试验研究.结果表明,这种新型加劲软钢阻尼器具有稳定的滞回性能和抗疲劳性能,对结构的加速度和位移都有很好的控制作用,具有较好的减震效果.
To explore the seismic dissipation ablitity of a new type of mild steel damper added damping and stiffness with a diamond shape hollow in-plane,the restoring force model of this damper was investigated by conducting the cyclic loading tests to six specimen groups. Two one-bay and three-story steel frames with equal elastic stiffress were designed and tested respectively on the shaking table. One of them was added with stiffness by the mild steel damping device,the other one was braced by ordinary bracing systems. Results show that the new type damper possesses the stable hysteretic capacity and fatigue resistance capacity,which can effectively control and reduce the acceleration and the displacement of a building.
To explore the seismic dissipation ablitity of a new type of mild steel damper added damping and stiffness with a diamond shape hollow in-plane,the restoring force model of this damper was investigated by conducting the cyclic loading tests to six specimen groups. Two one-bay and three-story steel frames with equal elastic stiffress were designed and tested respectively on the shaking table. One of them was added with stiffness by the mild steel damping device,the other one was braced by ordinary bracing systems. Results show that the new type damper possesses the stable hysteretic capacity and fatigue resistance capacity,which can effectively control and reduce the acceleration and the displacement of a building.
引文
[1]HOUSNER G W,BERGMAN L A,CAVGHEY T K.Structure control:past,present and future[J].Journal of Engineering Mechanics,1997,17(3):278-284.
[2]MARIONI A,SILVESTRI A,UBALDINI M.Develop-ment and application of innovative energy dissipation systems in the EC countries[C]//International Post-Smirt Conference Seminar on Seismic Isolation,Passive Energy Dissipation and Active Control of Seismic Vibra-tion of Structures,Taormina,1997:25-27.
[3]邢书涛,郭迅.一种新型软钢阻尼器力学性能和减震效果的研究[J].地震工程与工程振动,2003,23(6):179-186.
[4]WHITTAKER A S,BERTERO V V,THOMPSON C L,et al.Seismic testing of steel plate energy dissipation de-vices[J].Earthquake Spectra,1991,7(4):563-604.
[5]TSAI K C,CHEN HW,HONG C P,et al.Design of steel triangular plate energy absorbersfor seismic-resistant con-structions[J].Earthquake Spectra,1993,9(3):505-528.
[6]苏晴茂,锺佩璋.台湾钢构造建筑技术之发展[C]//第三届结构与大地工程研讨会,台湾:[s.n].,2003:332-333.
[7]周云,刘季.加劲阻尼装置在建筑抗震中的应用[J].工程抗震,1997,(3):34-38.
[8]TSAI K C,LI J W.Welded steel triangular plate device for seismic energy dissipation[C]//Proceedings of ATC-17-1Seminar on Seismic Isolation,Passive Energy Dissipation,and Active Control,Vol.2,San Francisso:Appied Technology Council,1993:11-12.
[9]周强,吕西林.组合耗能系统的振动台试验与分析[J].振动工程学报,2002,15(3):305-310.
[2]MARIONI A,SILVESTRI A,UBALDINI M.Develop-ment and application of innovative energy dissipation systems in the EC countries[C]//International Post-Smirt Conference Seminar on Seismic Isolation,Passive Energy Dissipation and Active Control of Seismic Vibra-tion of Structures,Taormina,1997:25-27.
[3]邢书涛,郭迅.一种新型软钢阻尼器力学性能和减震效果的研究[J].地震工程与工程振动,2003,23(6):179-186.
[4]WHITTAKER A S,BERTERO V V,THOMPSON C L,et al.Seismic testing of steel plate energy dissipation de-vices[J].Earthquake Spectra,1991,7(4):563-604.
[5]TSAI K C,CHEN HW,HONG C P,et al.Design of steel triangular plate energy absorbersfor seismic-resistant con-structions[J].Earthquake Spectra,1993,9(3):505-528.
[6]苏晴茂,锺佩璋.台湾钢构造建筑技术之发展[C]//第三届结构与大地工程研讨会,台湾:[s.n].,2003:332-333.
[7]周云,刘季.加劲阻尼装置在建筑抗震中的应用[J].工程抗震,1997,(3):34-38.
[8]TSAI K C,LI J W.Welded steel triangular plate device for seismic energy dissipation[C]//Proceedings of ATC-17-1Seminar on Seismic Isolation,Passive Energy Dissipation,and Active Control,Vol.2,San Francisso:Appied Technology Council,1993:11-12.
[9]周强,吕西林.组合耗能系统的振动台试验与分析[J].振动工程学报,2002,15(3):305-310.
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