HRB400级钢筋混凝土柱损伤的评价
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摘要
针对当前典型的损伤模型存在一定程度上的缺陷,提出一个基于弹性变形能形式的损伤评价模型。该模型将过程量转化为状态量,考虑了滞回过程中构件位移与刚度退化的影响。通过对滞回过程进行简化与等效,使得地震作用计算变得贴近实际情况。通过四个HRB400级钢筋混凝土柱破坏性试验数据的分析,验证了本文提出的模型的正确性与合理性。
Aiming at some defects in the typical damage model,a new evaluation model of the seismic damage based on the form of elastic deformation energy is proposed in this paper.The process state is changed into the static one in the new damage model,and the effects of displacements and the stiffness degradation of four columns are taken into account.We may simplify the hysteretic process in the new model to make the seismic action calculation close to the factual circumstance.According to the results based on the destructive test of four HRB400 grade reinforced concrete columns,it is proved that the new model is correct and rational.
Aiming at some defects in the typical damage model,a new evaluation model of the seismic damage based on the form of elastic deformation energy is proposed in this paper.The process state is changed into the static one in the new damage model,and the effects of displacements and the stiffness degradation of four columns are taken into account.We may simplify the hysteretic process in the new model to make the seismic action calculation close to the factual circumstance.According to the results based on the destructive test of four HRB400 grade reinforced concrete columns,it is proved that the new model is correct and rational.
引文
[1]Young-Ji Park,Alfredo H-S Ang.Mechanistic seismic damage model for reinforced concrete[J].Journal of Structural Engineering,ASCE,1985,111(4):722-739.
[2]陈永祁,龚思礼.结构在地震动时延性和累积塑性耗能的双重破坏准则[J].建筑结构学报,1986,7(1):35-48.
[3]牛荻涛,任利杰.改进的钢筋混凝土结构双参数地震破坏模型[J].地震工程与工程震动,1996,16(4);44-54.
[4]李军旗,赵世春.钢筋混凝土构件损伤模型[J].兰州铁道学院学报,2000,19(3):25-27.
[5]吕大刚,王光远.基于损伤性能的抗震结构最优设防水准的决策方法[J].土木工程学报,2001,34(1):44-49.
[6]欧进萍,牛荻涛,王光远.多层非线性抗震钢结构的模糊动力可靠性与设计[J].地震工程与工程振动,1990,10(4):27-37.
[7]黄庆丰.抗震结构动力响应的卸载分析方法[D].天津:天津大学,2003.
[8]丁建.钢筋混凝土框架直接基于损伤性能的能力设计理论及方法的研究[D].西安:西安建筑科技大学,2004.
[9]邢君.地震力作用下钢筋混凝土框架倒塌过程数值模拟[D].天津:河北工业大学,2004,17~20.
[10]GB 50010-2002混凝土结构设计规范[S].北京:中国建筑工业出版社,2002:16-22.
[11]王新宁.HRB400级钢筋混凝土梁抗弯性能的试验研究及有限元分析[D].天津:天津大学,2003.
[12]于海祥.钢筋混凝土结构地震损伤模型研究[D].重庆:重庆大学,2004.
[13]汪梦甫,周锡元.高层建筑结构抗震弹塑性分析方法及抗震性能评估的研究[J].土木工程学报,2003,36(11):44-49.
[14]江见鲸,陆新征,叶列平.混凝土结构有限元分析[M].北京:清华大学出版社,2005:274-280.
[15]Ghobarah A,Abou-Elfath H,Biddah A.Response based damage assessment of structures[J].Earthquake.Engng.Struct.Dyn,1999,28:79-104.
[2]陈永祁,龚思礼.结构在地震动时延性和累积塑性耗能的双重破坏准则[J].建筑结构学报,1986,7(1):35-48.
[3]牛荻涛,任利杰.改进的钢筋混凝土结构双参数地震破坏模型[J].地震工程与工程震动,1996,16(4);44-54.
[4]李军旗,赵世春.钢筋混凝土构件损伤模型[J].兰州铁道学院学报,2000,19(3):25-27.
[5]吕大刚,王光远.基于损伤性能的抗震结构最优设防水准的决策方法[J].土木工程学报,2001,34(1):44-49.
[6]欧进萍,牛荻涛,王光远.多层非线性抗震钢结构的模糊动力可靠性与设计[J].地震工程与工程振动,1990,10(4):27-37.
[7]黄庆丰.抗震结构动力响应的卸载分析方法[D].天津:天津大学,2003.
[8]丁建.钢筋混凝土框架直接基于损伤性能的能力设计理论及方法的研究[D].西安:西安建筑科技大学,2004.
[9]邢君.地震力作用下钢筋混凝土框架倒塌过程数值模拟[D].天津:河北工业大学,2004,17~20.
[10]GB 50010-2002混凝土结构设计规范[S].北京:中国建筑工业出版社,2002:16-22.
[11]王新宁.HRB400级钢筋混凝土梁抗弯性能的试验研究及有限元分析[D].天津:天津大学,2003.
[12]于海祥.钢筋混凝土结构地震损伤模型研究[D].重庆:重庆大学,2004.
[13]汪梦甫,周锡元.高层建筑结构抗震弹塑性分析方法及抗震性能评估的研究[J].土木工程学报,2003,36(11):44-49.
[14]江见鲸,陆新征,叶列平.混凝土结构有限元分析[M].北京:清华大学出版社,2005:274-280.
[15]Ghobarah A,Abou-Elfath H,Biddah A.Response based damage assessment of structures[J].Earthquake.Engng.Struct.Dyn,1999,28:79-104.
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