组合框架结构柱和梁板间耗能分配规律分析
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摘要
将能量原理运用到钢-混凝土组合框架结构地震反应分析中,利用有限元软件模拟组合框架在地震荷载作用下的动力响应,分析结构阻尼比、地震动峰值和持时等因素对滞回耗能分配规律的影响,探讨组合结构总输入能量及层间和柱、梁板间能量分配规律.研究表明总输入能受阻尼比和地震动频谱特性影响较大,地震动峰值影响较小;滞回耗能在结构层间分布为底层大顶层小的梯形分布;柱耗散的滞回能随阻尼比、地震动峰值或卓越周期增加而增加,阻尼耗能随之减少,梁耗散与柱相反;地震动持时对柱和梁的耗能分配影响很小.
The energy principle was applied into the analyses of seismic response of one steel-concrete composite structure,and the dynamic response of the structure under earthquake load was analyzed by finite element software.The distribution regularity of hysteretic energy between columns and beams,plates,was investigated which took into account the structure damping ratio,peak ground shaking,strong motion duration and other influence factors. The results show that,the input energy is greatly affected by the damping ratio and peak ground shaking,but strong motion duration effect is relatively small. The storey distribution regularity of hysteretic energy is ladder-shaped distribution. The hysteretic energy dissipated by columns increases but the damping energy decreases with the increases of structure damping ratio,peak ground shaking and predominant period; beams and plates are contrary to columns. Ground motion duration has little effect on energy distribution.
The energy principle was applied into the analyses of seismic response of one steel-concrete composite structure,and the dynamic response of the structure under earthquake load was analyzed by finite element software.The distribution regularity of hysteretic energy between columns and beams,plates,was investigated which took into account the structure damping ratio,peak ground shaking,strong motion duration and other influence factors. The results show that,the input energy is greatly affected by the damping ratio and peak ground shaking,but strong motion duration effect is relatively small. The storey distribution regularity of hysteretic energy is ladder-shaped distribution. The hysteretic energy dissipated by columns increases but the damping energy decreases with the increases of structure damping ratio,peak ground shaking and predominant period; beams and plates are contrary to columns. Ground motion duration has little effect on energy distribution.
引文
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2Housner,G.W.Limit design of structures to resist earth-quakes.Proc.of first world conf.on earthquake engrg.Berkeley,CA,1956,1～2
3肖明葵,刘波,白绍良.抗震结构总输入能量及其影响因素分析.重庆建筑大学学报,1996.6,(2):20～33(Xiao Mingkui,Liu Bo,Bai Shaoliang.Analysis of the Total Ener-gy and Its Influencing Factors for Seismic Structures.Jour-nal ofChongqing Jianzhu University,1996,6(2):20～33(in Chinese))
4谭丽芳,蒋丽忠,董立冬.基于Push-over分析的钢-混凝土组合框架抗震性能研究.动力学与控制学报,2008(2):169～172(Tan Lifang,Jiang Lizhong,Dong Lidong.Push-over analysis on the steel-concrete composite frame structure with three stories.Journal ofDynamics and Con-trol,2008(2):169～172(in Chinese))
5叶献国.建筑结构弹塑性地震反应中的能量表达及应用.合肥工业大学学报,1998,21(5):16～22(Ye Xianguo.Energy expressions of earthquake resp-onse and damage in inelastic structure and applications.Journal ofHefei Universi-ty ofTechnology,1998,21(5):16～22(in Chinese))
6周云,徐彤,周福霖.抗震与减震结构的能量分析方法研究与应用.地震工程与工程振动,1999,19(4):19～26(Zhou Yun,Xu Tong,Zhou Fulin.Research and develop-ment of structural seismic design based on energy method.Journal ofEarthquake Engineering and Engineering Vibra-tion,1999,19(4):19～26(in Chinese))
7蒋丽忠,董立冬,余志武.基于滞回耗能的钢-混凝土组合框架抗震性能分析.铁道科学与工程学,2007,6(4):49～55(Jiang Lizhong,Dong Lidong,Yu Zhiwu.Analysison seismic behavior of steel-concrete composite frame struc-ture based on hysteretic energy.Journal ofRailway Science and Engineering,2007,6(4):49～55(in Chinese))
8史庆轩,熊仲明,李菊芳.框架结构滞回耗能在结构层间分配的计算分析.西安建筑科技大学学报:自然科学版,2005,37(2):174～178(Shi Qingxuan,Xiong Zhongming,LI Jufang.Calculation analysis of the storey distribution of hysteretic en-ergy for frame structures.Journal ofXi'an University ofArchi-tecture&Technology,2005,37(2):174～178(in Chinese))
9糜永红.建筑结构在地震作用下的能量反应分析及应用研究.湖南大学[硕士学位论文],2003(Mi Yonghong.Seismic Response Analysis of Building Structure Based on Energy Theory.[Hunan University,Master Degree The-sis],2003(in Chinese))
10蒋丽忠,曹华,余志武.钢-混凝土组合框架地震弹塑性时程分析.铁道工程与工程学报,2005,3(2):1～6(Jiang Liz-hong,Cao Hua,Yu Zhiwu.Elastic-plastic earthquake response of Steel-concrete composite frame structure.Journal ofRailway Science and Engineering,2005,3(2):1～6(in Chinese))
2Housner,G.W.Limit design of structures to resist earth-quakes.Proc.of first world conf.on earthquake engrg.Berkeley,CA,1956,1～2
3肖明葵,刘波,白绍良.抗震结构总输入能量及其影响因素分析.重庆建筑大学学报,1996.6,(2):20～33(Xiao Mingkui,Liu Bo,Bai Shaoliang.Analysis of the Total Ener-gy and Its Influencing Factors for Seismic Structures.Jour-nal ofChongqing Jianzhu University,1996,6(2):20～33(in Chinese))
4谭丽芳,蒋丽忠,董立冬.基于Push-over分析的钢-混凝土组合框架抗震性能研究.动力学与控制学报,2008(2):169～172(Tan Lifang,Jiang Lizhong,Dong Lidong.Push-over analysis on the steel-concrete composite frame structure with three stories.Journal ofDynamics and Con-trol,2008(2):169～172(in Chinese))
5叶献国.建筑结构弹塑性地震反应中的能量表达及应用.合肥工业大学学报,1998,21(5):16～22(Ye Xianguo.Energy expressions of earthquake resp-onse and damage in inelastic structure and applications.Journal ofHefei Universi-ty ofTechnology,1998,21(5):16～22(in Chinese))
6周云,徐彤,周福霖.抗震与减震结构的能量分析方法研究与应用.地震工程与工程振动,1999,19(4):19～26(Zhou Yun,Xu Tong,Zhou Fulin.Research and develop-ment of structural seismic design based on energy method.Journal ofEarthquake Engineering and Engineering Vibra-tion,1999,19(4):19～26(in Chinese))
7蒋丽忠,董立冬,余志武.基于滞回耗能的钢-混凝土组合框架抗震性能分析.铁道科学与工程学,2007,6(4):49～55(Jiang Lizhong,Dong Lidong,Yu Zhiwu.Analysison seismic behavior of steel-concrete composite frame struc-ture based on hysteretic energy.Journal ofRailway Science and Engineering,2007,6(4):49～55(in Chinese))
8史庆轩,熊仲明,李菊芳.框架结构滞回耗能在结构层间分配的计算分析.西安建筑科技大学学报:自然科学版,2005,37(2):174～178(Shi Qingxuan,Xiong Zhongming,LI Jufang.Calculation analysis of the storey distribution of hysteretic en-ergy for frame structures.Journal ofXi'an University ofArchi-tecture&Technology,2005,37(2):174～178(in Chinese))
9糜永红.建筑结构在地震作用下的能量反应分析及应用研究.湖南大学[硕士学位论文],2003(Mi Yonghong.Seismic Response Analysis of Building Structure Based on Energy Theory.[Hunan University,Master Degree The-sis],2003(in Chinese))
10蒋丽忠,曹华,余志武.钢-混凝土组合框架地震弹塑性时程分析.铁道工程与工程学报,2005,3(2):1～6(Jiang Liz-hong,Cao Hua,Yu Zhiwu.Elastic-plastic earthquake response of Steel-concrete composite frame structure.Journal ofRailway Science and Engineering,2005,3(2):1～6(in Chinese))
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