中美欧水平地震作用的比较
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摘要
分析了中美欧抗震设计中的水平地震作用问题。首先,比较了中美欧抗震规范中建筑物重要性、强度折减系数的差异,介绍了中国规范的底部剪力法、美国规范的等效侧向荷载法以及欧洲规范的侧向荷载法。然后对一多层框架结构,分别作为办公楼和医院,计算了不同设防烈度下、不同延性等级下的水平地震作用,并进行了比较分析,获得了3种规范关于水平地震作用的一些差异。
The differences of horizontal earthquake action in the seismic design codes of China,America and Europe are studied in this paper.Firstly,comparison of building importance,strength reduction factors of GB50011-2001,FEMA450 and Eurocode 8 is presented,and base shear method of GB50011-2001,equivalent lateral force procedure of FEMA450,lateral force analysis method of Eurocode 8 are summarized.Then,the seismic base shear of a multistorey frame structure with different ductility is computed as an office or a hospital building under intensities 7,8 and 9,the both computed results are compared,and some differences of seismic base shear are found for the three codes.
The differences of horizontal earthquake action in the seismic design codes of China,America and Europe are studied in this paper.Firstly,comparison of building importance,strength reduction factors of GB50011-2001,FEMA450 and Eurocode 8 is presented,and base shear method of GB50011-2001,equivalent lateral force procedure of FEMA450,lateral force analysis method of Eurocode 8 are summarized.Then,the seismic base shear of a multistorey frame structure with different ductility is computed as an office or a hospital building under intensities 7,8 and 9,the both computed results are compared,and some differences of seismic base shear are found for the three codes.
引文
[1]刘洁平,李晓东,张令心.浅谈欧洲规范Eurocode8-结构抗震设计[J].世界地震工程,2006,22(3):53-59.Liu Jieping,Li Xiaodong,Zhang Lingxin.Elementary introduction to Eurocode8-design of structures for earthquake resistance[J].World Earth-quake Engineering,2006,22(3):53-59.
[2]范力,赵斌,吕西林.欧洲规范8与中国抗震设计规范关于抗震设防目标和地震作用的比较[J].结构工程师,2006,22(6):59-63.Fan Li,Zhao Bin,Lu Xilin.Comparison of seismic fortification aims and earthquake actions between Eurocode8and Chinese seismic design code for buildings[J].Structural Engineers,2006,22(6):59-63.
[3]李英民,吴雪萍,韦峰,等.按中、欧规范设计的钢筋混凝土框架结构抗震性态的对比分析[J].地震工程与工程振动,2007,27(6):82-88.Li Yingmin,Wu Xueping,Wei Feng,et al.Comparison between seismic performance of RC frames designed according to Chinese and European codes[J].Journal of Earthquake Engineering and Engineering Vibration,2007,27(6):82-88.
[4]翟长海,谢礼立.抗震规范应用强度折减系数的现状及分析[J].地震工程与工程振动,2006,26(2):1-57.Zhai Changhai,Xie Lili.State-of-art of applications of strength reduction factors in seismic design codes[J].Earthquake Engineering and Engi-neering Vibration,2006,26(2):1-57.
[5]罗开海.建筑抗震设防标准和性能设计方法研究——中美欧抗震设计规范比较分析[D].北京:中国建筑科学研究院,2005.Luo Kaihai.Research on seismic fortification criterion and performance-based design-comparative analysis in the seismic design codes of China,America and Europe[D].Beijing:China Academy of Building Research,2005.
[6]GB50011-2001,建筑抗震设计规范[S].GB50011-2001,Code for Seismic Design of Buildings[S].
[7]Building Seismic Safety Council,Federal Emergency Management Agency,National Earthquake Hazards Reduction Program.NEHRP Recommen-ded provisions for seismic regulations for new buildings and other structures(FEMA450),Part1:Provisions,(2003ed)[S].
[8]Building Seismic Safety Council,Federal Emergency Management Agency,National Earthquake Hazards Reduction Program.NEHRP Recommen-ded provisions for seismic regulations for new buildings and other structures(FEMA450),Part2:Commentary,(2003ed)[S].
[9]CEN/TC250,PrEN1998-1Eurocode8:Design of structures for earthquake resistance-Part1:General rules,seismic actions and rules for buildings[S].
[2]范力,赵斌,吕西林.欧洲规范8与中国抗震设计规范关于抗震设防目标和地震作用的比较[J].结构工程师,2006,22(6):59-63.Fan Li,Zhao Bin,Lu Xilin.Comparison of seismic fortification aims and earthquake actions between Eurocode8and Chinese seismic design code for buildings[J].Structural Engineers,2006,22(6):59-63.
[3]李英民,吴雪萍,韦峰,等.按中、欧规范设计的钢筋混凝土框架结构抗震性态的对比分析[J].地震工程与工程振动,2007,27(6):82-88.Li Yingmin,Wu Xueping,Wei Feng,et al.Comparison between seismic performance of RC frames designed according to Chinese and European codes[J].Journal of Earthquake Engineering and Engineering Vibration,2007,27(6):82-88.
[4]翟长海,谢礼立.抗震规范应用强度折减系数的现状及分析[J].地震工程与工程振动,2006,26(2):1-57.Zhai Changhai,Xie Lili.State-of-art of applications of strength reduction factors in seismic design codes[J].Earthquake Engineering and Engi-neering Vibration,2006,26(2):1-57.
[5]罗开海.建筑抗震设防标准和性能设计方法研究——中美欧抗震设计规范比较分析[D].北京:中国建筑科学研究院,2005.Luo Kaihai.Research on seismic fortification criterion and performance-based design-comparative analysis in the seismic design codes of China,America and Europe[D].Beijing:China Academy of Building Research,2005.
[6]GB50011-2001,建筑抗震设计规范[S].GB50011-2001,Code for Seismic Design of Buildings[S].
[7]Building Seismic Safety Council,Federal Emergency Management Agency,National Earthquake Hazards Reduction Program.NEHRP Recommen-ded provisions for seismic regulations for new buildings and other structures(FEMA450),Part1:Provisions,(2003ed)[S].
[8]Building Seismic Safety Council,Federal Emergency Management Agency,National Earthquake Hazards Reduction Program.NEHRP Recommen-ded provisions for seismic regulations for new buildings and other structures(FEMA450),Part2:Commentary,(2003ed)[S].
[9]CEN/TC250,PrEN1998-1Eurocode8:Design of structures for earthquake resistance-Part1:General rules,seismic actions and rules for buildings[S].
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