密肋壁板结构计算模型及静力弹塑性反应分析
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摘要
结合前期密肋复合墙体与密肋壁板结构的试验研究,将密肋复合墙体中砌块等效为均匀受力的斜压杆,推导出等效斜压杆的弹塑性应力-应变公式,提出在等效斜压杆中设置轴向塑性铰,由此建立密肋复合墙体的弹塑性计算模型;研究密肋复合墙体的弹塑性屈服机制;建立密肋壁板结构的弹塑性计算模型,并对结构进行静力弹塑性反应分析;最后提出密肋壁板结构抗震性能评估方法.理论分析和试验表明:采用等效斜压杆模型对密肋复合墙体进行分析能较好的反映墙体"三阶段"破坏特性;建立的结构弹塑性计算模型能较好地模拟密肋壁板结构的真实破坏过程,为结构的抗震性能评估及弹塑性动力反应分析提供简化的力学模型.
According to the previous experimental study of multi-ribbed composite walls and multi-ribbed slab structures,a uniform oblique compression bar under uniaxial compression is employed to be equivalent to the filler block in the multi-ribbed composite wall.On this basis,the formula of elastic-plastic strain-stress for equivalent oblique compression bar is deduced,and the axial plastic hinge of the bar put forward.Then the elastic-plastic mathematical mode of the multi-ribbed composite wall is built.Moreover,the elastic-plastic yielding mechanism of the multi-ribbed composite wall is analyzed.The elastic-plastic calculation model of multi-ribbed slab structure is established,and the static elastic-plastic response analysis on the structure is performed.Finally,the assessment method for the seismic performance of the structure is presented.Theoretical analysis and test research show that adopting equivalent oblique compression bar model for analyzing the multi-ribbed composite wall can better reflect the three-stage damage of the wall.Meanwhile,the elastic-plastic calculation model of multi-ribbed slab structure proposed above can be effectively utilized to simulate the real failure process of the structure,which can provide the simplified mechanical mode for the seismic performance assessment and elastic-plastic dynamic response analysis of the structure.
According to the previous experimental study of multi-ribbed composite walls and multi-ribbed slab structures,a uniform oblique compression bar under uniaxial compression is employed to be equivalent to the filler block in the multi-ribbed composite wall.On this basis,the formula of elastic-plastic strain-stress for equivalent oblique compression bar is deduced,and the axial plastic hinge of the bar put forward.Then the elastic-plastic mathematical mode of the multi-ribbed composite wall is built.Moreover,the elastic-plastic yielding mechanism of the multi-ribbed composite wall is analyzed.The elastic-plastic calculation model of multi-ribbed slab structure is established,and the static elastic-plastic response analysis on the structure is performed.Finally,the assessment method for the seismic performance of the structure is presented.Theoretical analysis and test research show that adopting equivalent oblique compression bar model for analyzing the multi-ribbed composite wall can better reflect the three-stage damage of the wall.Meanwhile,the elastic-plastic calculation model of multi-ribbed slab structure proposed above can be effectively utilized to simulate the real failure process of the structure,which can provide the simplified mechanical mode for the seismic performance assessment and elastic-plastic dynamic response analysis of the structure.
引文
[1]黄炜,姚谦峰,章宇明,等.内填砌体的密肋复合墙体极限承载力计算[J].土木工程学报.2006,39(3):68-75.HUANG Wei,YAO Qian-feng,ZHANG Yu-ming,et al.Calculation on ulti mate bearing capacity of multi-ribbedcomposite walls infilled with blocks[J].China Civil Engineering Journal,2006,39(3):68-75.
[2]姚谦峰,黄炜,田洁,等.密肋复合墙体受力机理及抗震性能试验研究[J].建筑结构学报,2004,25(6):67-74.YAO Qian-feng,HUANG Wei,TIANJie,et al.Experi mental analyses of mechanical characteristics and seismicperformance of multi-ribbed panel wall[J].Journal of Building Structures,2004,25(6):67-74.
[3]黄炜,姚谦峰,章宇明,等.密肋复合墙体抗震性能及设计理论研究[J].西安建筑科技大学学报:自然科技版,2005,37(1):29-34.HUANG Wei,YAO Qian-feng,ZHANG Yu-ming,et al.Analyses of seiemic performance and the design method ofmulti-rib slab[J].J.Xi′an Univ.of Arch.and Tech.(Natural Science Edition).2005,37(1):29-34.
[4]黄炜,陈国新,姚谦峰.密肋复合墙体在拟动力试验下的抗震性能研究[J].振动与冲击.2007,26(3):49-54.HUANG Wei,CHEN Guo-xin,YAO Qian-feng,et al.study on asei mic performance of a multi-ribbed compositewall under pseudo-dynamic test[J].Vibration and shock.2007,26(3):49-54.
[5]SANEINEIAD A,HOBBS B.Inelastic design of infilled frames[J].Journal of Structure Engineering,1995,121(4):634-650.
[6]熊向阳,戚震华.侧向荷载分布方式对静力弹塑性分析结果的影响[J].建筑科学,2001,17(5):8-13.XIONG Xiang-yang,QI Zhen-hua.The Influence of Lateral Load Patterns onthe Results of Static Pushover Analysis[J].Building Science,2001,17(5):8-13.
[7]KRAWINKLER H,SENEVIRATNA G D P K.Pros and cons of a pushover analysis of seismic performance evalu-ation,Engineering Structures[J].1998,20(4-6):452-464.
[8]叶燎原,潘文.结构静力弹塑性分析(push-over)的原理和计算实例[J].建筑结构学报,2000,21(1):37-43.YE Liao-yuan,PAN Wen.The Principle of Nonlinear Static Analysis(Push-over)and Numerical Examples[J].Journal of Building Structures,2000,21(1):37-43.
[9]杨溥,李英民,王亚勇,等.结构静力弹塑性分析(push-over)方法的改进[J].建筑结构学报,2000,21(1):44-51.YANG Pu,LI Ying-min,WANG Yayong,et al.A Study on I mprovement of Push-over Analysis[J].Journal ofBuilding Structures.2000,21(1):44-51.
[10]魏巍,冯启民.几种push-over分析方法对比研究[J].地震工程与工程振动,2002,22(4):66-73.WEI Wei,FENG Qi-min.Research on comparison of several push-over analysis methods[J].Earthquake Engineer-ing and Engineering Vibration,2002,22(4):66-73.
[11]汪大绥,贺军利,张凤新.静力弹塑性分析(PushoverAnalysis)的基本原理和计算实例[J].世界地震工程,2004,20(1):45-52.WANG Da-sui,HE Jun-li,ZHANG Feng-xin,et al.The basic principle and a case study of the static elastoplasticanalysis(pushover analysis)[J].World Earthquake Engineering,2004,20(1):45-52.
[12]CHOPRA A K,RAKESH X,GOEL K.Direct Displacement Bared Design:Use of Inelastic vs.Elastic DesignSpectra[J].Earthquake Spectra,2001,17(1):47-64.
[13]CHOPRA A K,RAKESH X,GOEL K.Evaluation of NSP to Esti mate Seismic Deformation:SOF System[J].Journal of Structural Engineering,ASCE,126(4),482-490.
[2]姚谦峰,黄炜,田洁,等.密肋复合墙体受力机理及抗震性能试验研究[J].建筑结构学报,2004,25(6):67-74.YAO Qian-feng,HUANG Wei,TIANJie,et al.Experi mental analyses of mechanical characteristics and seismicperformance of multi-ribbed panel wall[J].Journal of Building Structures,2004,25(6):67-74.
[3]黄炜,姚谦峰,章宇明,等.密肋复合墙体抗震性能及设计理论研究[J].西安建筑科技大学学报:自然科技版,2005,37(1):29-34.HUANG Wei,YAO Qian-feng,ZHANG Yu-ming,et al.Analyses of seiemic performance and the design method ofmulti-rib slab[J].J.Xi′an Univ.of Arch.and Tech.(Natural Science Edition).2005,37(1):29-34.
[4]黄炜,陈国新,姚谦峰.密肋复合墙体在拟动力试验下的抗震性能研究[J].振动与冲击.2007,26(3):49-54.HUANG Wei,CHEN Guo-xin,YAO Qian-feng,et al.study on asei mic performance of a multi-ribbed compositewall under pseudo-dynamic test[J].Vibration and shock.2007,26(3):49-54.
[5]SANEINEIAD A,HOBBS B.Inelastic design of infilled frames[J].Journal of Structure Engineering,1995,121(4):634-650.
[6]熊向阳,戚震华.侧向荷载分布方式对静力弹塑性分析结果的影响[J].建筑科学,2001,17(5):8-13.XIONG Xiang-yang,QI Zhen-hua.The Influence of Lateral Load Patterns onthe Results of Static Pushover Analysis[J].Building Science,2001,17(5):8-13.
[7]KRAWINKLER H,SENEVIRATNA G D P K.Pros and cons of a pushover analysis of seismic performance evalu-ation,Engineering Structures[J].1998,20(4-6):452-464.
[8]叶燎原,潘文.结构静力弹塑性分析(push-over)的原理和计算实例[J].建筑结构学报,2000,21(1):37-43.YE Liao-yuan,PAN Wen.The Principle of Nonlinear Static Analysis(Push-over)and Numerical Examples[J].Journal of Building Structures,2000,21(1):37-43.
[9]杨溥,李英民,王亚勇,等.结构静力弹塑性分析(push-over)方法的改进[J].建筑结构学报,2000,21(1):44-51.YANG Pu,LI Ying-min,WANG Yayong,et al.A Study on I mprovement of Push-over Analysis[J].Journal ofBuilding Structures.2000,21(1):44-51.
[10]魏巍,冯启民.几种push-over分析方法对比研究[J].地震工程与工程振动,2002,22(4):66-73.WEI Wei,FENG Qi-min.Research on comparison of several push-over analysis methods[J].Earthquake Engineer-ing and Engineering Vibration,2002,22(4):66-73.
[11]汪大绥,贺军利,张凤新.静力弹塑性分析(PushoverAnalysis)的基本原理和计算实例[J].世界地震工程,2004,20(1):45-52.WANG Da-sui,HE Jun-li,ZHANG Feng-xin,et al.The basic principle and a case study of the static elastoplasticanalysis(pushover analysis)[J].World Earthquake Engineering,2004,20(1):45-52.
[12]CHOPRA A K,RAKESH X,GOEL K.Direct Displacement Bared Design:Use of Inelastic vs.Elastic DesignSpectra[J].Earthquake Spectra,2001,17(1):47-64.
[13]CHOPRA A K,RAKESH X,GOEL K.Evaluation of NSP to Esti mate Seismic Deformation:SOF System[J].Journal of Structural Engineering,ASCE,126(4),482-490.
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