用新型箍筋(S-Clip)的钢筋混凝土桥墩抗震性能试验研究
|
摘要
钢筋混凝土桥柱中,复合箍筋配筋方式非常复杂,施工难度大,用钢量多,且不易保证施工质量。针对该配筋方式存在的问题,提出一种新型的配筋方式,S-Clip筋。为了验证这种新型配筋方式的有效性,按照纵筋配筋率的不同,制作了两组大型桥墩柱的模型。通过两组模型的低周反复荷载试验,研究了分别采用普通复合箍筋和新型S-Clip筋的桥墩柱的抗震性能。试验结果表明,新型配筋方式能够充分发挥材料的力学性能,与原配筋方式具有相同的承载能力,而且在延性方面略有提高。在工程应用中,采用S-Clip筋提高了工程质量,加快了施工速度,节约钢材,具有广泛的应用前景。该应用技术的研究,对工程结构理论和应用技术的发展有着重要的作用。
In R.C.bridge pier,reinforcement arrangements of combined stirrups are complicated,which are difficult to construct,demanding large quantity of rolled steel and hard to assure the quality of construction.According to these problems,a new type of reinforcement arrangement,called S-Clip was proposed.In order to validate the effect of the reinforcement,two groups of big size piers were made,which are different in longitudinal reinforcement ratio.By the low cyclic reverse loading test,the seismic behavior was studied on each bridge pier which uses conventional combined stirrups and S-Clip stirrups respectively.The results indicate that the piers using new type of reinforcement take full advantage of material capability,possess the same carrying capacity as the conventional one,and futher,have improved ductility.The application of the new type of reinforcement is in favor of improving engineering quality.It speeds up the construction process and economizes rolled steel.Therefore,the application of this technique must have extensive prospect.
In R.C.bridge pier,reinforcement arrangements of combined stirrups are complicated,which are difficult to construct,demanding large quantity of rolled steel and hard to assure the quality of construction.According to these problems,a new type of reinforcement arrangement,called S-Clip was proposed.In order to validate the effect of the reinforcement,two groups of big size piers were made,which are different in longitudinal reinforcement ratio.By the low cyclic reverse loading test,the seismic behavior was studied on each bridge pier which uses conventional combined stirrups and S-Clip stirrups respectively.The results indicate that the piers using new type of reinforcement take full advantage of material capability,possess the same carrying capacity as the conventional one,and futher,have improved ductility.The application of the new type of reinforcement is in favor of improving engineering quality.It speeds up the construction process and economizes rolled steel.Therefore,the application of this technique must have extensive prospect.
引文
[1]Broderick B M,ElnAShai A S.Analysis of the failure ofinterstate 10 freeway ramp during the Northridge earthquake of17 January 1994[J].Earthquake Engineering&StructuralDynamics,1995,24(2):189-208.
[2]Elnashai A S.Selected engineering seismology and structuralengineering studies of the Hyogo-ken Nanbu(Great Hanshin)earthquake of 17 January 1995[R].No.95-2,London:EISEE,1995.
[3]刘恢先.唐山大地震震害(三)[M].北京:地震出版社.1978:3-26.
[4]黄龙生.海城地震桥梁震害调查报告[R].No 5,北京:中国科学院工程力学研究所,1975.
[5]Abdelkareem K H,Chida A.Efects of Vertical Motion ofEarthquake on Failure Mode and Ductility of RC Bridge Piers[C].Proceeings of the 12th World Conference on EarthquakeEngineering,Auckland:pringer,2000,1123-1157.
[6]刘庆华.钢筋混凝土桥墩抗震设计中滞回模型与损伤模型的实验与理论研究[D].北京:北方交通大学土木建筑系,1994.
[7]阎贵平,项海帆.钢筋混凝土桥墩弹塑性动力特性的实验研究[J].同济大学学报,1991,19(增刊):43-56.
[8]刘庆华,阎贵平,陈英俊.低配筋混凝土桥墩抗震性能的实验研究[J].北方交通大学学报.1996,20(5):517-521.
[9]川岛一彦,长谷川金二,小山达彦,等.RC桥脚の动的耐力に关すゐ实验研究-(その1)昭和56年度～昭和58年度の检讨结果[R].No 2232,東京:土木研究所,1985.
[10]川岛一彦,长谷川金二,等.RC桥脚の动的耐力に关すゐ实验研究(その2)断面形状、荷重、荷载方向、ちせん铁筋及びせん断补强铁筋の影响[R].No 2279,東京:土木研究所,1986.
[11]ztürk H,Ayvaz Y.Comparative study of behavior ofreinforced concrete beams strengthened and repaired-strengthened by using V connecting bars and U connectingstirrups[J].Construction and Building Materials,2002,16(6):321-329.
[12]Mohamed Ali M S,Oehlers D J,Seracino R.Vertical shearinteraction model between external FRP transverse plates andinternal steel stirrups[J].Engineering Structures,2006,28(3):381-389.
[13]Mangat P S,Motamedi A M.Influence of steel fibre andstirrup reinforcement on the properties of concrete incompression members[J].International Journal of CementComposites and Lightweight Concrete,1985,7(3):183-192.
[14]孙卓,李建中,闫贵平,等.钢筋混凝土单柱式桥墩抗震性能试验研究[J].同济大学学报,2006,34(2):160-164.
[15]沈在康.混凝土结构试验方法新标准应用讲评[M].北京:中国建筑工业出版社,1994:20-106.
[16]向上.日本铁路桥梁抗震设计中延性率的评价方法[C].成都:西南交通大学出版社,2006:294-301.
[17]叶爱君.桥梁抗震[M].北京:人民交通出版社,2002:32-106.
[2]Elnashai A S.Selected engineering seismology and structuralengineering studies of the Hyogo-ken Nanbu(Great Hanshin)earthquake of 17 January 1995[R].No.95-2,London:EISEE,1995.
[3]刘恢先.唐山大地震震害(三)[M].北京:地震出版社.1978:3-26.
[4]黄龙生.海城地震桥梁震害调查报告[R].No 5,北京:中国科学院工程力学研究所,1975.
[5]Abdelkareem K H,Chida A.Efects of Vertical Motion ofEarthquake on Failure Mode and Ductility of RC Bridge Piers[C].Proceeings of the 12th World Conference on EarthquakeEngineering,Auckland:pringer,2000,1123-1157.
[6]刘庆华.钢筋混凝土桥墩抗震设计中滞回模型与损伤模型的实验与理论研究[D].北京:北方交通大学土木建筑系,1994.
[7]阎贵平,项海帆.钢筋混凝土桥墩弹塑性动力特性的实验研究[J].同济大学学报,1991,19(增刊):43-56.
[8]刘庆华,阎贵平,陈英俊.低配筋混凝土桥墩抗震性能的实验研究[J].北方交通大学学报.1996,20(5):517-521.
[9]川岛一彦,长谷川金二,小山达彦,等.RC桥脚の动的耐力に关すゐ实验研究-(その1)昭和56年度～昭和58年度の检讨结果[R].No 2232,東京:土木研究所,1985.
[10]川岛一彦,长谷川金二,等.RC桥脚の动的耐力に关すゐ实验研究(その2)断面形状、荷重、荷载方向、ちせん铁筋及びせん断补强铁筋の影响[R].No 2279,東京:土木研究所,1986.
[11]ztürk H,Ayvaz Y.Comparative study of behavior ofreinforced concrete beams strengthened and repaired-strengthened by using V connecting bars and U connectingstirrups[J].Construction and Building Materials,2002,16(6):321-329.
[12]Mohamed Ali M S,Oehlers D J,Seracino R.Vertical shearinteraction model between external FRP transverse plates andinternal steel stirrups[J].Engineering Structures,2006,28(3):381-389.
[13]Mangat P S,Motamedi A M.Influence of steel fibre andstirrup reinforcement on the properties of concrete incompression members[J].International Journal of CementComposites and Lightweight Concrete,1985,7(3):183-192.
[14]孙卓,李建中,闫贵平,等.钢筋混凝土单柱式桥墩抗震性能试验研究[J].同济大学学报,2006,34(2):160-164.
[15]沈在康.混凝土结构试验方法新标准应用讲评[M].北京:中国建筑工业出版社,1994:20-106.
[16]向上.日本铁路桥梁抗震设计中延性率的评价方法[C].成都:西南交通大学出版社,2006:294-301.
[17]叶爱君.桥梁抗震[M].北京:人民交通出版社,2002:32-106.
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心