单自由度体系R--μT关系研究综述及讨论
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摘要
通过对单自由度体系R-μ-T关系代表性研究成果的总结评述,得出两个重要结论:1)总体来看,各代表性研究成果在基本趋势上具有良好的一致性,所获得的R-μ-T规律可以作为抗震设计的重要参考准则;2)单自由度体系R-μ-T规律初步揭示出设计良好的抗震结构所具有的延性能力是结构可以采用多遇地震作用进行承载能力设计,却能在强震下取得相对令人满意的抗震性能的主要原因。
Based on summary and analysis of the main research findings regarding R-μ-T relations for a single-degree-of-freedom system,the following two important conclusions can be drawn: 1) In general,these research findings are consistent with each other.The R-μ-T rule can be an important reference criterion for seismic design.2) Proper design and extendibility ensure the relatively satisfactory performance of the structure under stronger earthquake action.
Based on summary and analysis of the main research findings regarding R-μ-T relations for a single-degree-of-freedom system,the following two important conclusions can be drawn: 1) In general,these research findings are consistent with each other.The R-μ-T rule can be an important reference criterion for seismic design.2) Proper design and extendibility ensure the relatively satisfactory performance of the structure under stronger earthquake action.
引文
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[7]卓卫东,范立础.结构抗震设计中的强度折减系数研究[J].地震工程与工程振动,2001,21(1):84-88.ZHUO Wei-dong,FAN Li-chu.On strength reductionfactors used for seismic design of structures[J].Earthquake Engineering and Engineering Vibration,2001,21(1):84-88.
[8]翟长海,公茂盛,谢礼立,等.工程结构等延性地震抗力谱研究[J].地震工程与工程振动,2004,24(1):22-29.ZHAI Chang-hai,GONG Mao-sheng,XIE Li-li,et al.On seismic resistance spectra of constant ductility ofstructures[J].Earthquake Engineering and EngineeringVibration,2004,24(1):22-29.
[9]吕西林,周定松.考虑场地类别与设计分组的延性需求谱和弹塑性位移反应谱[J].地震工程与工程振动,2004,24(1):39-48.LV Xi-lin,ZHOU Ding-song.Ductility demand spectraand inelastic displacement spectra considering soil condi-tions and design characteristic periods[J].EarthquakeEngineering and Engineering Vibration,2004,24(1):39-48.
[10]李刚强.抗震设计的RT-μ基本准则及钢筋混凝土典型框架结构超强特征分析[D].重庆:重庆大学,2006.
[11]MARTINEZ-RUEDA J E.Scaling procedure for naturalaccelerograms based on a system of spectrum intensityscales[J].Earthquake Spectra,1998,14(1):135-152.
[2]NEWMARK N M,Hall W J.Earthquake spectra anddesign[M].EERI Monograph Series.EarthquakeEngineering Research Institute.Oakland.California.USA,1982.
[3]KRAWINKLER H,NASSAR A A.Seismic design basedon ductility and cumulative damage demand andcapacities,Nonlinear Seismic Analysis and Design ofReinforced Concrete Buildings[C].Fajfar andKrawinkler,ed.Elsevier Applied Science.New York.USA,1992:23-40.
[4]MIRANDA E,BERTERO V V.Evaluation of strengthreduction factor for earthquake-resistance design[J].Earthquake Spectra,1994,l0(2):357-379.
[5]MIRANDA E.Site-dependent strength-reduction factors[J].Journal of Structural Engineering,1993,119(12):3503-3519.
[6]VIDIC T,FAJFAR P,FISCHINGER M.Consistentinelastic design spectra:strength and displacement[J].Earthquake Engineering and Structural Dynamics,1994,23(3):507-521.
[7]卓卫东,范立础.结构抗震设计中的强度折减系数研究[J].地震工程与工程振动,2001,21(1):84-88.ZHUO Wei-dong,FAN Li-chu.On strength reductionfactors used for seismic design of structures[J].Earthquake Engineering and Engineering Vibration,2001,21(1):84-88.
[8]翟长海,公茂盛,谢礼立,等.工程结构等延性地震抗力谱研究[J].地震工程与工程振动,2004,24(1):22-29.ZHAI Chang-hai,GONG Mao-sheng,XIE Li-li,et al.On seismic resistance spectra of constant ductility ofstructures[J].Earthquake Engineering and EngineeringVibration,2004,24(1):22-29.
[9]吕西林,周定松.考虑场地类别与设计分组的延性需求谱和弹塑性位移反应谱[J].地震工程与工程振动,2004,24(1):39-48.LV Xi-lin,ZHOU Ding-song.Ductility demand spectraand inelastic displacement spectra considering soil condi-tions and design characteristic periods[J].EarthquakeEngineering and Engineering Vibration,2004,24(1):39-48.
[10]李刚强.抗震设计的RT-μ基本准则及钢筋混凝土典型框架结构超强特征分析[D].重庆:重庆大学,2006.
[11]MARTINEZ-RUEDA J E.Scaling procedure for naturalaccelerograms based on a system of spectrum intensityscales[J].Earthquake Spectra,1998,14(1):135-152.
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