基于损伤分级的底框结构抗震可靠性分析
|
摘要
底部框架上部混凝土多孔砖砌体结构是一种复合结构形式,在地震作用下两部分结构的损伤状态及其概率可能不同。因此,本文将两种结构形式的"破坏指标"分别用于其结构损伤程度的标定,并考虑地震烈度的发生概率,以此为基础探讨抗震可靠度的分级计算方法。通过对一幢底框结构案例的分析,说明该方法有效实现了抗震可靠度分析的精细化,突破了传统可靠度计算中首超破坏机制对结构破坏判断的单一性限制,适用于复合结构多级风险的量化分析。
Bottom frame structure with concrete perforated brick masonry above the upper levels is a kind of complex structure.Seismic injury stage and probability of the two-part structure could be different.Therefore,the "damage index" of the two structures are used for calibration of structural damage stage.At the same time the probability of earthquake intensity is considered in this paper.Based on these two,the grading calculation method of seismic reliability is studied.A bottom frame structure case is analyzed to illustrate that this method is helpful in getting the refinement in seismic reliability analysis.It overcomes the unitary limitation on structural damage judgment from the first-excursion mechanics in traditional reliability calculation.This method is suitable for the multi-level risk quantitative analysis of the composite structure.
Bottom frame structure with concrete perforated brick masonry above the upper levels is a kind of complex structure.Seismic injury stage and probability of the two-part structure could be different.Therefore,the "damage index" of the two structures are used for calibration of structural damage stage.At the same time the probability of earthquake intensity is considered in this paper.Based on these two,the grading calculation method of seismic reliability is studied.A bottom frame structure case is analyzed to illustrate that this method is helpful in getting the refinement in seismic reliability analysis.It overcomes the unitary limitation on structural damage judgment from the first-excursion mechanics in traditional reliability calculation.This method is suitable for the multi-level risk quantitative analysis of the composite structure.
引文
[1]李桂青,李秋胜.工程结构时变可靠度理论及其应用[M].北京:科学出版社,2001.LI Guiqing,LI Qiusheng.The theory and its application on the structure’s dynamic reliability[M].Beijing:Science Press,1993.(in Chinese)
[2]Ellingwood B R.LRFD:Implementing structural reliability in professional practice[J].Engineering Structures,2000(22):106-115.
[3]杨伟军,林立,杨春侠.混凝土多孔砖砌体房屋抗震可靠度分析[J].工程力学,2007,10(24):100-104.YANG Weijun,LIN Li,YANG Chunxia.The research on seismic reliability of concrete perforated brick masonry structure[J].Engineering Me-chanics,2007,10(24):100-104.(in Chinese)
[4]江近仁,洪峰.多层砖房的地震可靠度分析[J].地震工程与工程振动,1985,5(4):13-27.JIANG Jinren,HONG Feng.The analysis of the seismic reliability on multi-storey brick building[J].Journal of Earthquake Engineering and Engi-neering Vibration,1985,5(4):13-27.(in Chinese)
[5]Park Y,Ang,A.Mechanistic seismic damage modes for reinforced concrete[J],J.Struct.Eng.,ASCE 1985,111(4):722-739.
[6]Singhal A,Kiremidjian A.Method for probabilistic evaluation of seismic structural damage[J].J.Struct.Eng.,ASCE 1996,122(12):1459-1467.
[7]林立,卓卫东,范立础.基于概率烈度的地面加速度峰值分布分析[C]//第四届全国防震减灾工程学术研讨会会议论文集.北京:中国建筑工业出版社,2009.LIN Li,ZHUO Weidong,FAN Lichu.The research on the ground motion peak acceleration distribution related with probability of earthquake in-tensity[C]//Fourth National Earthquake Prevention and Disaster Reduction Engineering Symposium Proceedings.Beijing:China Building IndustryPress,2009.(in Chinese)
[8]胡聿贤.地震工程学[M].北京:地震出版社,1988.HU Yuxian.Earthquake engineering[M].Beijing:Earthquake Press,1988.(in Chinese)
[9]Christiana Dymiotis,Kappos A J,Chryssanthopoulos M K.Seismic reliability of masonry-infilled RC frames[J].J.Struct.Eng.,ASCE 2001,127(3):296-305.
[10]杨伟军,张振浩,林立.基于破坏指标界限值的结构抗震可靠度分析[J].地震工程与工程振动,2010,30(1):77-83.YANG Weijun,ZHANG Zhenhao,LIN Li.Research on seism ic reliability of structure based on boundary value of damage index[J].Journal ofEarthquake Engineering and Engineering Vibration,2010,30(1):77-83.(in Chinese)
[11]杨春侠,施楚贤,杨伟军.混凝土多孔砖砌体模型房屋抗震性能试验研究[J].建筑结构学报,2006,27(3):84-92.YANG Chunxia,SHI Chuxian,YANG Weijun.Experimental investigation on pseudo-dynamic test of concrete perforated brick masonry buildingmodel[J].Journal of Building Structures,2006,27(3):84-92.(in Chinese)
[12]欧进萍,王光远.结构随机振动[M].北京:高等教育出版社,1998.OU Jinping,WANG Guangyuan.Random vibration structures[M].Beijing:Higher Education Press,1998.(in Chinese)
[13]钱国芳,王应生,刘晓帆,等.底部加钢筋混凝土剪力墙框架结构的地震反应分析[J].西安建筑科技大学学报,1998,30(3):236-239.QIAN Guofang,WANG Yingsheng,LIU Xiaofan,et al.An analysis on the seism response of reinforced concrete frames with shear wall in lowerstories[J].Journal of Xi’an University of Architecture&Technology,1998,30(3):236-239.(in Chinese)
[2]Ellingwood B R.LRFD:Implementing structural reliability in professional practice[J].Engineering Structures,2000(22):106-115.
[3]杨伟军,林立,杨春侠.混凝土多孔砖砌体房屋抗震可靠度分析[J].工程力学,2007,10(24):100-104.YANG Weijun,LIN Li,YANG Chunxia.The research on seismic reliability of concrete perforated brick masonry structure[J].Engineering Me-chanics,2007,10(24):100-104.(in Chinese)
[4]江近仁,洪峰.多层砖房的地震可靠度分析[J].地震工程与工程振动,1985,5(4):13-27.JIANG Jinren,HONG Feng.The analysis of the seismic reliability on multi-storey brick building[J].Journal of Earthquake Engineering and Engi-neering Vibration,1985,5(4):13-27.(in Chinese)
[5]Park Y,Ang,A.Mechanistic seismic damage modes for reinforced concrete[J],J.Struct.Eng.,ASCE 1985,111(4):722-739.
[6]Singhal A,Kiremidjian A.Method for probabilistic evaluation of seismic structural damage[J].J.Struct.Eng.,ASCE 1996,122(12):1459-1467.
[7]林立,卓卫东,范立础.基于概率烈度的地面加速度峰值分布分析[C]//第四届全国防震减灾工程学术研讨会会议论文集.北京:中国建筑工业出版社,2009.LIN Li,ZHUO Weidong,FAN Lichu.The research on the ground motion peak acceleration distribution related with probability of earthquake in-tensity[C]//Fourth National Earthquake Prevention and Disaster Reduction Engineering Symposium Proceedings.Beijing:China Building IndustryPress,2009.(in Chinese)
[8]胡聿贤.地震工程学[M].北京:地震出版社,1988.HU Yuxian.Earthquake engineering[M].Beijing:Earthquake Press,1988.(in Chinese)
[9]Christiana Dymiotis,Kappos A J,Chryssanthopoulos M K.Seismic reliability of masonry-infilled RC frames[J].J.Struct.Eng.,ASCE 2001,127(3):296-305.
[10]杨伟军,张振浩,林立.基于破坏指标界限值的结构抗震可靠度分析[J].地震工程与工程振动,2010,30(1):77-83.YANG Weijun,ZHANG Zhenhao,LIN Li.Research on seism ic reliability of structure based on boundary value of damage index[J].Journal ofEarthquake Engineering and Engineering Vibration,2010,30(1):77-83.(in Chinese)
[11]杨春侠,施楚贤,杨伟军.混凝土多孔砖砌体模型房屋抗震性能试验研究[J].建筑结构学报,2006,27(3):84-92.YANG Chunxia,SHI Chuxian,YANG Weijun.Experimental investigation on pseudo-dynamic test of concrete perforated brick masonry buildingmodel[J].Journal of Building Structures,2006,27(3):84-92.(in Chinese)
[12]欧进萍,王光远.结构随机振动[M].北京:高等教育出版社,1998.OU Jinping,WANG Guangyuan.Random vibration structures[M].Beijing:Higher Education Press,1998.(in Chinese)
[13]钱国芳,王应生,刘晓帆,等.底部加钢筋混凝土剪力墙框架结构的地震反应分析[J].西安建筑科技大学学报,1998,30(3):236-239.QIAN Guofang,WANG Yingsheng,LIU Xiaofan,et al.An analysis on the seism response of reinforced concrete frames with shear wall in lowerstories[J].Journal of Xi’an University of Architecture&Technology,1998,30(3):236-239.(in Chinese)
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心