耐久性损伤钢筋混凝土结构抗震分析参数研究
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摘要
根据目前已有试验资料和理论分析,讨论了对耐久性损伤钢筋混凝土结构抗震分析的影响因素,包括截面几何损伤、混凝土和钢筋力学性能劣化、钢筋混凝土粘结滑移劣化等,提出了钢筋混凝土结构抗震耐久性损伤参数的概念,并给出了计算方法。基于已有的钢筋混凝土结构的恢复力模型,并考虑各抗震耐久性损伤参数,对计算得到的锈蚀构件骨架曲线与试验值进行对比分析,其结果在总体上吻合较好。研究成果可在损伤钢筋混凝土结构地震反应分析中应用。
Based on the available experimental data and theoretical analysis,the influence factors on seismic analysis of reinforced concrete structure with durability damage were mainly discussed,including section geometrical damage,the performance deterioration of concrete and steel,the reduction of bond-slip of reinforced concrete.The concept and calculation method of damage parameters of reinforced concrete structure seismic durability were presented.Based on the existing restoring force model of reinforced concrete structure,and considering the damage parameters of various seismic durability,the skeleton curves of the corroded members can be got.These curves generally are in good agreement with the existing experimental data,which means these damage parameters can be used in seismic response analysis of damage reinforced concrete structure.
Based on the available experimental data and theoretical analysis,the influence factors on seismic analysis of reinforced concrete structure with durability damage were mainly discussed,including section geometrical damage,the performance deterioration of concrete and steel,the reduction of bond-slip of reinforced concrete.The concept and calculation method of damage parameters of reinforced concrete structure seismic durability were presented.Based on the existing restoring force model of reinforced concrete structure,and considering the damage parameters of various seismic durability,the skeleton curves of the corroded members can be got.These curves generally are in good agreement with the existing experimental data,which means these damage parameters can be used in seismic response analysis of damage reinforced concrete structure.
引文
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[14]桂成.锈蚀钢筋混凝土构件极限抗弯承载力及延性研究[D].长沙:长沙理工大学,2007.
[15]欧进萍,何政,吴斌,等.钢筋混凝土结构基于地震损伤性能的设计[J].地震工程与工程振动,1999,19(1):21-30.
[2]贡金鑫,仲伟秋,赵国藩.受腐蚀钢筋混凝土偏心受压构件低周反复性能的试验研究[J].建筑结构学报,2004,25(5):92-97.
[3]牛荻涛,陈新孝,王学民.锈蚀钢筋混凝土压弯构件抗震性能试验研究[J].建筑结构,2004,34(10):36-38.
[4]HAKAN YALCINER,SERHAN SENSOY,OZGUR EREN.Time-dependent seismic performance assessment of asingle degree of freedom frame subject to corrosion[J].Engineering Failure Analysis,2012,19(11):109-122.
[5]惠云玲,李荣,林志伸,等.混凝土基本构件钢筋锈蚀前后性能试验研究[J].工业建筑,1997,27(6):14-18.
[6]吴胜兴.钢筋混凝土结构锈蚀损伤研究综述[J].工程力学,2002,22(S1):70-88.
[7]张喜德,韦树英,彭修宁.钢筋锈蚀对混凝土抗压强度影响的试验研究[J].工业建筑,2003,33(3):5-7.
[8]GB50010—2010混凝土结构设计规范[S].北京:中国建筑工业出版社,2011.
[9]DAGHER H J,KULENDRAN S.Finite element modelingof corrosion damage in concrete structures[J].ACIStructural Journal,1992,89(6):699-708.
[10]DU Y G,CLARK L A,CHAN A H C.Residual capacityof corroded reinforcing bars[J].Magazine of ConcreteResearch,2005,57(3):135-147.
[11]ANDRADE C,ALONSO C,MOLINA F J.Cover crackingas a function of rebar corrosion:part-numerical model[J].Materials and Structures,1993,26(9):532-548.
[12]MASLEHUDDIN M,ALLAM I A,AL SULAINMANI GJ,et al.Effect of rusting of reinforcing steel on itsmechanical properties and bond with concrete[J].Materials Journal,1990,87(5):496-502.
[13]吴庆,袁迎曙.锈蚀钢筋力学性能退化规律试验研究[J].土木工程学报,2008,41(12):42-47.
[14]桂成.锈蚀钢筋混凝土构件极限抗弯承载力及延性研究[D].长沙:长沙理工大学,2007.
[15]欧进萍,何政,吴斌,等.钢筋混凝土结构基于地震损伤性能的设计[J].地震工程与工程振动,1999,19(1):21-30.
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