装有“双功能”软钢阻尼器框架结构振动台试验与分析
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摘要
对装有"双功能"软钢阻尼器的框架结构进行了模拟地震振动台试验与分析,并采用有限元方法进行了振动台试验的数值计算,试验及有限元分析结果均表明,两种"双功能"软钢阻尼器对结构的位移反应均有较好的控制效果,实现了小震下为结构提供初始刚度,大震下消耗地震能的设计思想;从能量的角度分析了两种软钢阻尼器的耗能性能,结果表明,"双功能"软钢阻尼器可以耗散大部分地震动输入给结构的能量,降低结构损伤,是一种理想的消能装置。
A steel structure with "dual functions" metallic damper was tested on shaking table to study the dynamic characteristics and seismic responses,especially the effect of this kind of damper on seismic behaviors of the structure.A frame structure model was made with ADPL language in ANSYS program.Seismic responses of the structure with and without metallic damper were discussed and compared.The results of tests and calculations show that the metallic dampers with "dual functions" presented here not only provide certain stiffness in normal using,but also are of good ability of seismic energy dissipation.
A steel structure with "dual functions" metallic damper was tested on shaking table to study the dynamic characteristics and seismic responses,especially the effect of this kind of damper on seismic behaviors of the structure.A frame structure model was made with ADPL language in ANSYS program.Seismic responses of the structure with and without metallic damper were discussed and compared.The results of tests and calculations show that the metallic dampers with "dual functions" presented here not only provide certain stiffness in normal using,but also are of good ability of seismic energy dissipation.
引文
[1]中华人民共和国国家标准,建筑抗震设计规范(GB50011-2001)[M].北京:中国建筑工业出版社,2001.
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[5]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):187-192.
[6]李钢,李宏男.新型软钢阻尼器的减震性能研究[J].振动与冲击,2006,25(3):66-73.
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[8]于建,叶燎原.耗能支撑框架结构中耗能支撑数量的估算[J].工程抗震与加固改造,2006,28(1):83-86.
[9]党育,杜永峰,李慧,等.基础隔震结构的耗能分析[J].世界地震工程,2005,21(3):100-104.
[2]Whittaker AS,Bertero VV,Thompson C I,et al.Seismic tes-ting of steel plate energy dissipation devices[J].Earthquake Spectra,1991,7(4):563-604.
[3]Tsai K C,Chen HW,Hong C P,et al.Design of steel trian-gular plate energy absorbers for seismic resistant construction[J].Earthquake Spectra,1993,19(3):505-528.
[4]欧进萍,吴斌.摩擦型与软钢屈服型耗能器的性能与减震效果的试验比较[J].地震工程与工程振动,1995,15(3):73-85.
[5]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):187-192.
[6]李钢,李宏男.新型软钢阻尼器的减震性能研究[J].振动与冲击,2006,25(3):66-73.
[7]Housner G W.Limit design of structure to resist earthquake.Proc.1stWorld Conference[J].Earthquake Engineering.Berkeley,California,5-1to5-12,1956.
[8]于建,叶燎原.耗能支撑框架结构中耗能支撑数量的估算[J].工程抗震与加固改造,2006,28(1):83-86.
[9]党育,杜永峰,李慧,等.基础隔震结构的耗能分析[J].世界地震工程,2005,21(3):100-104.
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