HRBF500 RC柱地震全过程损伤试验分析
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摘要
根据6根配置HRBF500级细晶钢筋的混凝土柱的低周反复加载试验,计算不同轴压比、剪跨比和配箍率构件的屈服位移和滞回耗能。根据经典Park模型存在的若干问题,引入比例参数协调低周反复加载极限位移与单调加载极限位移的关系,并局部修正Park模型。最后,对6个构件进行了加载全过程的损伤分析,总结损伤趋势和规律,分析轴压比、剪跨比和配箍率对损伤发展趋势的影响,并给出相应损伤评价准则和设计建议。
Based on the data of six HRBF500 RC columns cycle loading test,yield displacement and hysteretic energy of columns are calculated at the different axial compression ratio,shear span ratio and stirrup ratio.According to some problems of the classical model,scale parameter is proposed to coordinate the displacements of cycle loading and monotonic loading for amending the classical model.The columns’damage process is analyzed by the amended dynamic model.The trend and law of the damage process are summarized considering the effect of axial compression ratio,shear span ratio and stirrup ratio.Finally the criterion for evaluation and design proposals are given.
Based on the data of six HRBF500 RC columns cycle loading test,yield displacement and hysteretic energy of columns are calculated at the different axial compression ratio,shear span ratio and stirrup ratio.According to some problems of the classical model,scale parameter is proposed to coordinate the displacements of cycle loading and monotonic loading for amending the classical model.The columns’damage process is analyzed by the amended dynamic model.The trend and law of the damage process are summarized considering the effect of axial compression ratio,shear span ratio and stirrup ratio.Finally the criterion for evaluation and design proposals are given.
引文
[1]GB 1499.2—2007钢筋混凝土用热轧带肋钢筋[S].
[2]肖建庄,代媛媛,赵勇,等.500 MPa细晶粒钢筋高温下的应力-应变关系[J].建筑材料学报,2008(3):276-282.
[3]赵进阶,张钦喜,杨勇新.HRBF500钢筋混凝土梁受弯承载力试验研究[J].工业建筑,2009,39(3):52-55.
[4]JGJ 101—96建筑抗震试验方法规程[S].
[5]Park Young-Ji,Ang Alfredohk-S.A Mechanistic Seismic DamageModel for Reinforced Concrete[J].Journal of StructuralEngineering,1985,111(4):722-739.
[6]于海洋.钢筋混凝土结构地震损伤模型研究[D].重庆:重庆大学,2004.
[7]王全凤,沈章春,杨勇新,等.HRB400级钢筋混凝土短柱抗震试验研究[J].建筑结构学报,2008,29(2):114-117.
[8]王全凤,刘良林.基于能量形式的损伤评价模型[J].建筑科学与工程学报,2008,25(4):31-35.
[2]肖建庄,代媛媛,赵勇,等.500 MPa细晶粒钢筋高温下的应力-应变关系[J].建筑材料学报,2008(3):276-282.
[3]赵进阶,张钦喜,杨勇新.HRBF500钢筋混凝土梁受弯承载力试验研究[J].工业建筑,2009,39(3):52-55.
[4]JGJ 101—96建筑抗震试验方法规程[S].
[5]Park Young-Ji,Ang Alfredohk-S.A Mechanistic Seismic DamageModel for Reinforced Concrete[J].Journal of StructuralEngineering,1985,111(4):722-739.
[6]于海洋.钢筋混凝土结构地震损伤模型研究[D].重庆:重庆大学,2004.
[7]王全凤,沈章春,杨勇新,等.HRB400级钢筋混凝土短柱抗震试验研究[J].建筑结构学报,2008,29(2):114-117.
[8]王全凤,刘良林.基于能量形式的损伤评价模型[J].建筑科学与工程学报,2008,25(4):31-35.
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