考虑场地条件与设计地震分组的输入能量谱研究
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摘要
建立简单适用的设计输入能量谱是将能量方法应用于实际工程设计及校核的前提.选择了Ⅰ类、Ⅱ类和Ⅲ类场地共694条水平地震动记录,分析了不同的场地类别和设计地震分组下输入能量谱的特点.通过12个不同地震动参数与能量谱值的相关性分析,得到了表征地震动输入能量的地震动参数.基于我国现行规范规定的设防烈度和设防水准,提出了地震分组指标,并建立了相应的阻尼比为5%的弹性单自由度体系设计输入能量谱,为应用能量设计法及选择地面运动输入奠定了基础并提出相关建议.
Establishing a simplified applicable design input energy spectrum is the basis of applying the energy method to practical engineering design and verification.This paper has chosen 694 horizontal seismic records on class Ⅰ,Ⅱ and Ⅲ sites,and analyzed energy spectrum with different classification of design earthquakes and site classes.The correlation between 12 different ground motion parameters and the energy spectrum is examined,and a ground motion parameter among them having strong relation with ground motion input energy is selected.Based on the provisions of fortification intensity and security standard in the present code,a new parameter of classification of design earthquake is put forward and the corresponding design input energy spectrum for damping ratio of 5% of the elastic single degree of freedom system is built.Furthermore,some valuable recommendations for using the energy-based design method and selection of input ground motion are proposed.
Establishing a simplified applicable design input energy spectrum is the basis of applying the energy method to practical engineering design and verification.This paper has chosen 694 horizontal seismic records on class Ⅰ,Ⅱ and Ⅲ sites,and analyzed energy spectrum with different classification of design earthquakes and site classes.The correlation between 12 different ground motion parameters and the energy spectrum is examined,and a ground motion parameter among them having strong relation with ground motion input energy is selected.Based on the provisions of fortification intensity and security standard in the present code,a new parameter of classification of design earthquake is put forward and the corresponding design input energy spectrum for damping ratio of 5% of the elastic single degree of freedom system is built.Furthermore,some valuable recommendations for using the energy-based design method and selection of input ground motion are proposed.
引文
程光煜,叶列平.2008.弹塑性SDOF系统的地震输入能量谱[J].工程力学,25(2):28--39.
耿淑伟.2005.抗震规范中地震作用的规定[D].哈尔滨:中国地震局工程力学研究所:16--20.
胡聿贤(主编).2001.GB18306-2001《中国地震动参数区划图》宣贯教材[M].北京:中国标准出版社:93--97.
吕红山,赵凤新.2007.适用于中国场地分类的地震动反应谱放大系数[J].地震学报,29(1):67--76.
时振梁,陈汉尧.1995.基岩地震反应谱随震级、距离的变化特征[J].地震工程与工程振动,15(1):14--17.
叶献国.1998.地震强度指标定义的客观评价[J].合肥工业大学学报,21(6):7--11.
翟长海,谢礼立.2006.考虑设计地震分组的强度折减系数的研究[J].地震学报,28(3):284--294.
国家质量监督检验检疫总局,中华人民共和国建设部.2001.GB50011-2001建筑抗震设计规范[S].北京:中国建筑工业出版社:26--40.
周云,乐登,邓雪松.2008.设计用地震动总输入能量谱研究[J].工程抗震与加固改造,30(5):1--7
Akiyama H.1985.Earthquake Resistant Limit-state Design for Buildings[M].Tokyo:University of Tokyo Press,Ja-pan:11--32.
Ambraseys N N,Douglas J,Sigbjornsson R,Berge-Thierry C,Suhadolc P,Costa G,Smit P M.2004.Dissemination ofEuropean Strong-Motion Data,vol.2,using Strong-Motion Datascape Navigator,CD ROMcollection[M/CD].En-gineering and Physical Sciences Research Council,United Kingdom.
Araya R,Saragoni S R.1985.Earthquake accelerogram destructiveness potential factor[C]∥Proceedings of the8thWorld Conference on Earthquake Engineering.EERI,San Fransisco:835--842.
Benavent C A,Pujades L G,Al mansa F L.2002.Design energyinput spectra for moderate seismicity regions[J].Earth-quake Engineering and Structural Dynamics,31(5):1151--1172.
Chai Y H,Fajfar P.2000.Aprocedure for estimationinput energy spectra for seismic design[J].Journal of EarthquakeEngineering,4(4):539--561
Decanini L D,Mollaioli F.1998.Formulation of elastic earthquake input energy spectra[J].Earthquake Engineeringand Structural Dynamics,27(12):1503--1522.
Fajfar P,Vidic T.1994.Consistent inelastic design spectra:hysteretic and input energy[J].Earthquake Engineeringand Structural Dynamics,23(5):523--537.
Fajfar P,Vidic T,Fishinger M.1989.Seismic demandin mediumandlong-period structures[J].Earthquake Engineer-ing and Structural Dynamics,18(8):1133--1144.
Housner G W.1956.Limit design of structures to resist earthquakes[C]∥Proceedings ofthe1st World Conference onEarthquake Engineering.Berkeley,California:5.1--5.13.
Kuwamura H,Galambos T V.1989.Earthquake load for structural reliability[J].Journal of Structural Engineering,115(6):1446--1462.
Manfredi G.2001.Evaluation of seismic energy demand[J].Earthquake Engineering and Structural Dynamics,30(4):485--499.
Park YJ,Ang AS,Wen Y K.1985.Seismic damage analysis of reinforced concrete buildings[J].Journal of StructuralEngineering,111(4):740--757.
Riddell R,Garcia J E.2001.Hysteretic energy spectrumand damage control[J].Earthquake Engineering and Structur-al Dynamics,30(12):1791--1816.
Surahman A.2007.Earthquake-resistant structural design through energy demand and capacity[J].Earthquake Engi-neering and Structural Dynamics,36(14):2099--2117.
Trifunac,M D,Brady,A G.1975.Astudy on the duration of earthquake strong motion[J].Bull Seism Soc Amer,65(3):581--626.
Tso W K,Zhu TJ,Heidebrecht A C.1992.Engineering implication of ground motionA/Vratio[J].Soil Dynamicsand Earthquake Engineering,11(3):133--144.
Uang C M,Bertero V V.1990.Evaluation of seismic energyin structures[J].Earthquake Engineering and StructuralDynamics,19(1):77--90.
耿淑伟.2005.抗震规范中地震作用的规定[D].哈尔滨:中国地震局工程力学研究所:16--20.
胡聿贤(主编).2001.GB18306-2001《中国地震动参数区划图》宣贯教材[M].北京:中国标准出版社:93--97.
吕红山,赵凤新.2007.适用于中国场地分类的地震动反应谱放大系数[J].地震学报,29(1):67--76.
时振梁,陈汉尧.1995.基岩地震反应谱随震级、距离的变化特征[J].地震工程与工程振动,15(1):14--17.
叶献国.1998.地震强度指标定义的客观评价[J].合肥工业大学学报,21(6):7--11.
翟长海,谢礼立.2006.考虑设计地震分组的强度折减系数的研究[J].地震学报,28(3):284--294.
国家质量监督检验检疫总局,中华人民共和国建设部.2001.GB50011-2001建筑抗震设计规范[S].北京:中国建筑工业出版社:26--40.
周云,乐登,邓雪松.2008.设计用地震动总输入能量谱研究[J].工程抗震与加固改造,30(5):1--7
Akiyama H.1985.Earthquake Resistant Limit-state Design for Buildings[M].Tokyo:University of Tokyo Press,Ja-pan:11--32.
Ambraseys N N,Douglas J,Sigbjornsson R,Berge-Thierry C,Suhadolc P,Costa G,Smit P M.2004.Dissemination ofEuropean Strong-Motion Data,vol.2,using Strong-Motion Datascape Navigator,CD ROMcollection[M/CD].En-gineering and Physical Sciences Research Council,United Kingdom.
Araya R,Saragoni S R.1985.Earthquake accelerogram destructiveness potential factor[C]∥Proceedings of the8thWorld Conference on Earthquake Engineering.EERI,San Fransisco:835--842.
Benavent C A,Pujades L G,Al mansa F L.2002.Design energyinput spectra for moderate seismicity regions[J].Earth-quake Engineering and Structural Dynamics,31(5):1151--1172.
Chai Y H,Fajfar P.2000.Aprocedure for estimationinput energy spectra for seismic design[J].Journal of EarthquakeEngineering,4(4):539--561
Decanini L D,Mollaioli F.1998.Formulation of elastic earthquake input energy spectra[J].Earthquake Engineeringand Structural Dynamics,27(12):1503--1522.
Fajfar P,Vidic T.1994.Consistent inelastic design spectra:hysteretic and input energy[J].Earthquake Engineeringand Structural Dynamics,23(5):523--537.
Fajfar P,Vidic T,Fishinger M.1989.Seismic demandin mediumandlong-period structures[J].Earthquake Engineer-ing and Structural Dynamics,18(8):1133--1144.
Housner G W.1956.Limit design of structures to resist earthquakes[C]∥Proceedings ofthe1st World Conference onEarthquake Engineering.Berkeley,California:5.1--5.13.
Kuwamura H,Galambos T V.1989.Earthquake load for structural reliability[J].Journal of Structural Engineering,115(6):1446--1462.
Manfredi G.2001.Evaluation of seismic energy demand[J].Earthquake Engineering and Structural Dynamics,30(4):485--499.
Park YJ,Ang AS,Wen Y K.1985.Seismic damage analysis of reinforced concrete buildings[J].Journal of StructuralEngineering,111(4):740--757.
Riddell R,Garcia J E.2001.Hysteretic energy spectrumand damage control[J].Earthquake Engineering and Structur-al Dynamics,30(12):1791--1816.
Surahman A.2007.Earthquake-resistant structural design through energy demand and capacity[J].Earthquake Engi-neering and Structural Dynamics,36(14):2099--2117.
Trifunac,M D,Brady,A G.1975.Astudy on the duration of earthquake strong motion[J].Bull Seism Soc Amer,65(3):581--626.
Tso W K,Zhu TJ,Heidebrecht A C.1992.Engineering implication of ground motionA/Vratio[J].Soil Dynamicsand Earthquake Engineering,11(3):133--144.
Uang C M,Bertero V V.1990.Evaluation of seismic energyin structures[J].Earthquake Engineering and StructuralDynamics,19(1):77--90.
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