重复拉伸荷载下锈蚀钢筋力学性能及本构关系研究
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摘要
通过锈蚀钢筋重复拉伸荷载试验,分析了重复拉伸荷载作用下锈蚀对钢筋力学性能的影响,并建立了锈蚀钢筋本构关系模型.试验表明,重复荷载作用下,随着锈蚀率的增大,钢筋力学性能退化,变形能力下降,屈服平台逐渐缩短甚至消失;耗能性能降低,破坏时更加表现为脆性断裂,使得结构在地震发生时更易出现脆性破坏,甚至突然倒塌.基于试验成果本文建立了锈蚀钢筋应力-应变本构关系模型,研究成果可为锈损结构耐久性、残余承载力及抗震性能评估提供技术依据.
Through experiments of corroded steel bar specimens under cycling tensile load,the effect of corrosion on mechanical property was analyzed.It's revealed that the mechanical properties and deformability decrease gradually,the yielding plateau gradually shortens or even disappears,energy-dissipation capacity decreases,which makes the anti-seismic performance of structure degenerate,even sudden collapse can happen more easily in earthquakes.Based on the test results,the constitutive model for stressstrain relationship of corroded steel bars was established,which can be used as a reference to the appraisal for residual bearing capacity,durability and seismic behavior of reinforced concrete structure for the future.
Through experiments of corroded steel bar specimens under cycling tensile load,the effect of corrosion on mechanical property was analyzed.It's revealed that the mechanical properties and deformability decrease gradually,the yielding plateau gradually shortens or even disappears,energy-dissipation capacity decreases,which makes the anti-seismic performance of structure degenerate,even sudden collapse can happen more easily in earthquakes.Based on the test results,the constitutive model for stressstrain relationship of corroded steel bars was established,which can be used as a reference to the appraisal for residual bearing capacity,durability and seismic behavior of reinforced concrete structure for the future.
引文
[1]MEHTA P K.Durability of concrete-fifty years of progress[C]//IDORN G M.International Symposium,SP-126,American Concrete Institute,Detroit,1991:l-31.
[2]LIU Tie-jun,LI Ji-long,OU Jin-ping.High damping concrete and seismic behavior[C]//Third International Conference on Construction Materials.Vancouver,Canada:2005:365-373.
[3]APOSTOLOPOULOS C A.The Influence of corrosion and cross-section diameter on the mechanical properties of B500csteel[J].Journal of Materials Engineering and Performance,2009,18:190-195.
[4]梁岩,罗小勇.耐久性损伤钢筋混凝土结构抗震性能研究进展[J].地震工程与工程振动,2014,32(2):1-7.LIANG Yan,LUO Xiao-yong.Research progress in seismic behavior of durability damage RC structures[J].Earthquake Engineering and Engineering Vibration,2014,32(2):1-7.(In Chinese)
[5]BERTO L,VITALIANI R,SAETTA A,et al Seismic assessment of existing RC structures affected by degradation phenomena[J].Structual Safety,2009(31):284-297.
[6]梁岩,罗小勇.耐久性损伤钢筋混凝土结构抗震分析参数研究[J].建筑结构,2013,43(8):69-73.LIANG Yan,LUO Xiao-yong.Research on seismic parameter of reinforced concrete structures with durability damage[J].Building Structure,2013,43(8):69-73.(In Chinese)
[7]ALMUSALLAM A A,ALMUSALLAM.Effect of corrosion on the properties of reinforcing steel bars[J].Construct Ion and Building Materials,2001(5):361-368.
[8]APOSTOLOPOULOS C A.The influence of corrosion and cross-section diameter on the mechanical properties of B500csteel[J].Journal of Materials Engineering and Performance,2009,18:190-195.
[9]惠云玲,林志伸,李荣.锈蚀钢筋性能试验研究分析[J].工业建筑,1997,27(6):10-13.HUI Yun-ling,LIN Zhi-shen,LI Rong.Experimental study and analysis on the property of corroded rebar[J].Industrial Construction,1997,27(6):10-13.(In Chinese)
[10]袁迎曙,贾福萍,蔡跃.锈蚀钢筋混凝土梁的结构性能退化模型[J].土木工程学报,2001,34(3):47-52.YUAN Ying-shu JIA Fu-ping,CAI Yue.The structural behavior deterioration model for corroded reinforced concrete beams[J].China Civil Engineering Journal,2001,34(3):47-52.(In Chinese)
[11]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.WU Qing,YUAN Ying-shu.Experimental study on the deterioration of mechanical properties of corroded steel bars[J].China Civil Engineering Journal,2008,41(12):42-47.(In Chinese)
[12]张伟平,商登峰,顾祥林.锈蚀钢筋应力-应变关系研究[J].同济大学学报,2006,34(5):586-592.ZHANG Wei-ping,SHANG Deng-feng,GU Xiang-lin.Stress-strain relationship of corroded steel bars[J].Journal of Tongji University,2006,34(5):586-592.(In Chinese)
[13]APOSTOLOPOULOS C A.Mechanical behavior of corroded reinforcing steel bars S500stempcore under low cycle fatigue[J].Construction and Building Materials,2007,21:1447-1456.
[14]张伟平,李士彬,顾祥林,等.自然锈蚀钢筋的轴向拉伸疲劳试验[J].中国公路学报,2009,22(2):53-58.ZHANG Wei-ping,LI Shi-bin,GU Xiang-lin,et al.Experiment on axial tensile fatigue of naturally corroded steel bar[J].China Journal of Highway and Transport,2009,22(2):53-58.(In Chinese)
[15]李士彬,张伟平,顾祥林,等.加速锈蚀钢筋的疲劳试验研究[J].铁道学报,2010,32(5):93-97.LI Shi-bin,ZHANG Wei-ping,GU Xiang-lin,et al.Experimental study on fatigue properties of corrosion accelerated steel bars[J].Journal of Railway,2010,32(5):93-97.(In Chinese)
[16]范颖芳,周晶.考虑蚀坑影响的锈蚀钢筋力学性能研究[J].建筑材料学报,2003,6(3):248-252.FAN Ying-fang,ZHOU Jing.Mechanical property of rusty rebar considering the effects of corrosion pits[J].Journal of Building Materials,2003,6(3):248-252.(In Chinese)
[17]卫军,张萌,董荣珍,等.钢筋锈蚀对混凝土梁破坏模式影响的试验研究[J].湖南大学学报:自然科学版,2013,40(10):15-21.WEI Jun,ZHANG Meng,DONG Rong-zhen,et al.Experimental research on the failure mode of concrete beam due to steel corrosion[J].Journal of Hunan University:Natural Sciences,2013,40(10):15-21.(In Chinese)
[18]姬永生,申建立,王磊,等.混凝土中钢筋锈蚀过程非氧扩散控制的试验研究[J].湖南大学学报:自然科学版,2012,39(3):11-16.JI Yong-sheng,SHEN Jian-li,WANG Lei,et al.Experimental study of the process control of reinforcement corrosion in concrete[J].Journal of hunan University:Natural Sciences,2012,39(3):11-16.(In Chinese)
[19]SHIGERU H.Retrofitting of reinforced concrete moment resisting frames supervised by park[R].TANAKA H.ISSN0110-3326,1995.
[20]吴庆.基于钢筋锈蚀的混凝土构件性能退化预计模型[M].徐州:中国矿业大学出版社,2009:77-91.WU Qing.Concrete member performance degradation prediction model based on corrosion of steel bar[M].Xuzhou:China Mining University Press,2009:77-91.(In Chinese)
[2]LIU Tie-jun,LI Ji-long,OU Jin-ping.High damping concrete and seismic behavior[C]//Third International Conference on Construction Materials.Vancouver,Canada:2005:365-373.
[3]APOSTOLOPOULOS C A.The Influence of corrosion and cross-section diameter on the mechanical properties of B500csteel[J].Journal of Materials Engineering and Performance,2009,18:190-195.
[4]梁岩,罗小勇.耐久性损伤钢筋混凝土结构抗震性能研究进展[J].地震工程与工程振动,2014,32(2):1-7.LIANG Yan,LUO Xiao-yong.Research progress in seismic behavior of durability damage RC structures[J].Earthquake Engineering and Engineering Vibration,2014,32(2):1-7.(In Chinese)
[5]BERTO L,VITALIANI R,SAETTA A,et al Seismic assessment of existing RC structures affected by degradation phenomena[J].Structual Safety,2009(31):284-297.
[6]梁岩,罗小勇.耐久性损伤钢筋混凝土结构抗震分析参数研究[J].建筑结构,2013,43(8):69-73.LIANG Yan,LUO Xiao-yong.Research on seismic parameter of reinforced concrete structures with durability damage[J].Building Structure,2013,43(8):69-73.(In Chinese)
[7]ALMUSALLAM A A,ALMUSALLAM.Effect of corrosion on the properties of reinforcing steel bars[J].Construct Ion and Building Materials,2001(5):361-368.
[8]APOSTOLOPOULOS C A.The influence of corrosion and cross-section diameter on the mechanical properties of B500csteel[J].Journal of Materials Engineering and Performance,2009,18:190-195.
[9]惠云玲,林志伸,李荣.锈蚀钢筋性能试验研究分析[J].工业建筑,1997,27(6):10-13.HUI Yun-ling,LIN Zhi-shen,LI Rong.Experimental study and analysis on the property of corroded rebar[J].Industrial Construction,1997,27(6):10-13.(In Chinese)
[10]袁迎曙,贾福萍,蔡跃.锈蚀钢筋混凝土梁的结构性能退化模型[J].土木工程学报,2001,34(3):47-52.YUAN Ying-shu JIA Fu-ping,CAI Yue.The structural behavior deterioration model for corroded reinforced concrete beams[J].China Civil Engineering Journal,2001,34(3):47-52.(In Chinese)
[11]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.WU Qing,YUAN Ying-shu.Experimental study on the deterioration of mechanical properties of corroded steel bars[J].China Civil Engineering Journal,2008,41(12):42-47.(In Chinese)
[12]张伟平,商登峰,顾祥林.锈蚀钢筋应力-应变关系研究[J].同济大学学报,2006,34(5):586-592.ZHANG Wei-ping,SHANG Deng-feng,GU Xiang-lin.Stress-strain relationship of corroded steel bars[J].Journal of Tongji University,2006,34(5):586-592.(In Chinese)
[13]APOSTOLOPOULOS C A.Mechanical behavior of corroded reinforcing steel bars S500stempcore under low cycle fatigue[J].Construction and Building Materials,2007,21:1447-1456.
[14]张伟平,李士彬,顾祥林,等.自然锈蚀钢筋的轴向拉伸疲劳试验[J].中国公路学报,2009,22(2):53-58.ZHANG Wei-ping,LI Shi-bin,GU Xiang-lin,et al.Experiment on axial tensile fatigue of naturally corroded steel bar[J].China Journal of Highway and Transport,2009,22(2):53-58.(In Chinese)
[15]李士彬,张伟平,顾祥林,等.加速锈蚀钢筋的疲劳试验研究[J].铁道学报,2010,32(5):93-97.LI Shi-bin,ZHANG Wei-ping,GU Xiang-lin,et al.Experimental study on fatigue properties of corrosion accelerated steel bars[J].Journal of Railway,2010,32(5):93-97.(In Chinese)
[16]范颖芳,周晶.考虑蚀坑影响的锈蚀钢筋力学性能研究[J].建筑材料学报,2003,6(3):248-252.FAN Ying-fang,ZHOU Jing.Mechanical property of rusty rebar considering the effects of corrosion pits[J].Journal of Building Materials,2003,6(3):248-252.(In Chinese)
[17]卫军,张萌,董荣珍,等.钢筋锈蚀对混凝土梁破坏模式影响的试验研究[J].湖南大学学报:自然科学版,2013,40(10):15-21.WEI Jun,ZHANG Meng,DONG Rong-zhen,et al.Experimental research on the failure mode of concrete beam due to steel corrosion[J].Journal of Hunan University:Natural Sciences,2013,40(10):15-21.(In Chinese)
[18]姬永生,申建立,王磊,等.混凝土中钢筋锈蚀过程非氧扩散控制的试验研究[J].湖南大学学报:自然科学版,2012,39(3):11-16.JI Yong-sheng,SHEN Jian-li,WANG Lei,et al.Experimental study of the process control of reinforcement corrosion in concrete[J].Journal of hunan University:Natural Sciences,2012,39(3):11-16.(In Chinese)
[19]SHIGERU H.Retrofitting of reinforced concrete moment resisting frames supervised by park[R].TANAKA H.ISSN0110-3326,1995.
[20]吴庆.基于钢筋锈蚀的混凝土构件性能退化预计模型[M].徐州:中国矿业大学出版社,2009:77-91.WU Qing.Concrete member performance degradation prediction model based on corrosion of steel bar[M].Xuzhou:China Mining University Press,2009:77-91.(In Chinese)
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