无粘结与有粘结预应力混凝土梁抗震性能的试验对比研究
|
摘要
基于四对无粘结预应力混凝土梁与有粘结预应力混凝土梁的低周反复加载试验,较为系统地研究了上述两种预应力混凝土梁的延性、耗能性、变形恢复能力及破坏特征等抗震性能。研究表明:无粘结预应力混凝土梁的延性和变形恢复能力优于有粘结预应力混凝土梁,其延性系数平均高出20%;有粘结预应力混凝土梁的耗能能力优于无粘结预应力混凝土梁,其等效粘滞系数平均高出29.2%;有粘结预应力混凝土梁的承载力略高于无粘结预应力混凝土梁,其承载力平均高出7.42%;研究成果为不同工程情况下预应力梁的设计与选用提供参考。
Four pairs of unbonded and bonded prestressed concrete beams are tested under low reversed cyclic loading to investigate seismic performance,such as ductility,energy dissipation capacity,displacement restoring capacity,failure patterns,etc.Studies have shown that unbonded prestressed concrete beam is better than bonded one in ductility(ductility factor is higher by 20% in average) and displacement restoring capacity.Bonded prestressed concrete beam is better than unbonded one in energy dissipation capacity(coefficient of viscous is higher by 29.2% in average).Bonded prestressed concrete beam is better in carrying capacity than unbonded one(carrying capacity is higher by 29.2% in average).The results would provide a reference for the design and application of prestressed concrete structures in different conditions.
Four pairs of unbonded and bonded prestressed concrete beams are tested under low reversed cyclic loading to investigate seismic performance,such as ductility,energy dissipation capacity,displacement restoring capacity,failure patterns,etc.Studies have shown that unbonded prestressed concrete beam is better than bonded one in ductility(ductility factor is higher by 20% in average) and displacement restoring capacity.Bonded prestressed concrete beam is better than unbonded one in energy dissipation capacity(coefficient of viscous is higher by 29.2% in average).Bonded prestressed concrete beam is better in carrying capacity than unbonded one(carrying capacity is higher by 29.2% in average).The results would provide a reference for the design and application of prestressed concrete structures in different conditions.
引文
[1]王冬雁,李振宝,杭英.无粘结预应力装配梁试验研究[J].工业建筑,2008,38(2):31―58.Wang Dongyan,Li Zhenbao,Hang Ying.Experimentalresearch on unbonded post-tensioned precast concretebeams[J].Industrial Construction,2008,38(2):31―58.(in Chinese)
[2]刘威,李杰.钢筋混凝土异形柱框架低周反复加载试验研究[J].结构工程师,2002(3):56―61.Liu Wei,Li Jie.Pseudostatic test on the RC frame withspecial-shaped columns[J].Structural Engineers,2002(3):56―61.(in Chinese)
[3]苏小卒.预应力混凝土框架抗震性能研究[M].上海:上海科学技术出版社,1997:93―107.Su Xiaozu.Seismic behavior of prestressed concreteframe[M].Shanghai:Shanghai Scientific&TechnicalPublishers,1997:93―107.(in Chinese)
[4]宋玉普.新型预应力混凝土结构[M].北京:机械工业出版社,2005:186―189.Song Yupu.New prestressed concrete structure[M].Beijing:China Machine Press,2005:186―189.(inChinese)
[5]Sun Zhiguo,Si Bingjun,Wang Dongsheng,Guo Xun.Experimental research and finite element analysis ofbridge piers failed in flexure-shear modes[J].EarthquakeEngineering and Engineering Vibration,2008,7(4):403―414.
[6]黄行松,钢筋混凝土框架柱在低周反复荷载下的受力性能研究[J].福建建筑,2000,增刊(70):2―5.Huang Xingsong.Research on the behaviors of R/Cframe columns under cyclic loading test[J].FujianArchitecture&Constuction,2000,Suppl(70):2―5.(inChinese)
[7]薛伟辰,程斌,李杰.低周反复荷载下预应力高性能混凝土梁的抗震性能[J].地震工程与工程振动,2003,23(1):78―83.Xue Weichen,Cheng Bin,Li Jie.Seismic performance ofprestressed high-performance beams under low-reversedcyclic loading[J].Earthquake Engineering andEngineering Vibration,2003,23(1):78―83.(in Chinese)
[8]薛伟辰,杨枫,苏旭霖,陆平.预应力钢骨混凝土梁低周反复荷载试验研究[J].哈尔滨工业大学学报,2007,39(8):1185―1190.Xue Weichen,Yang Feng,Su Xulin,Lu Ping.Experimental studies on prestressed steel reinforcedconcrete beams under low reversed cyclic loading[J].Journal of Harbin Institute of Technolog,2007,39(8):1185―1190.(in Chinese)
[9]孟履祥,陶学康,关建光,徐福泉.芳纶纤维筋有黏结部分预应力混凝土梁受弯性能研究[J].土木工程学报,2006,39(3):10―36.Meng Lüxiang,Tao Xuekang,Guan Jianguang,XuFuquan.Experimental study on flexural behavior ofpartially prestressed concrete beams with bonded AFRPtendons[J].China Civil Engineering Journal,2006,39(3):10―36.(in Chinese)
[10]张利梅,赵顺波,黄承逵.预应力高强混凝土梁延性性能分析与试验研究[J].工程力学,2005,22(3):166―171.Zhang Limei,Zhao Shunbo,Huang Chengkui.Experimental study of ductility of prestressedhigh-strength concrete beams[J].Engineering Mechanics,2005,22(3):166―171.(in Chinese)
[11]唐昌辉,易伟建,沈蒲生,刘健行,李跃.低周反复荷载作用下无粘结部分预应力混凝土梁受弯性能的试验研究[J].建筑结构学报,2003,24(1):19―25.Tang Changhui,Yi Weijian,Shen Pusheng,Liu Jianxing,Li Yue.Experimental study of unbonded partialprestressed concrete beams under low cyclic loadings[J].Journal of Building Structures,2003,24(1):19―25.(inChinese)
[12]罗佑新,刁波,李淑春,郝志宏.RC异形柱框架反复加载试验及数值模拟[J].工业建筑,2008,38(8):46―82.Luo Youxin,Diao Bo,Li Shuchun,Hao Zhihong.Repetitive loading test of RC frame structures withspecial shaped columns and numerical simulation[J].Industrial Construction,2008,38(8):46―82.(inChinese)
[2]刘威,李杰.钢筋混凝土异形柱框架低周反复加载试验研究[J].结构工程师,2002(3):56―61.Liu Wei,Li Jie.Pseudostatic test on the RC frame withspecial-shaped columns[J].Structural Engineers,2002(3):56―61.(in Chinese)
[3]苏小卒.预应力混凝土框架抗震性能研究[M].上海:上海科学技术出版社,1997:93―107.Su Xiaozu.Seismic behavior of prestressed concreteframe[M].Shanghai:Shanghai Scientific&TechnicalPublishers,1997:93―107.(in Chinese)
[4]宋玉普.新型预应力混凝土结构[M].北京:机械工业出版社,2005:186―189.Song Yupu.New prestressed concrete structure[M].Beijing:China Machine Press,2005:186―189.(inChinese)
[5]Sun Zhiguo,Si Bingjun,Wang Dongsheng,Guo Xun.Experimental research and finite element analysis ofbridge piers failed in flexure-shear modes[J].EarthquakeEngineering and Engineering Vibration,2008,7(4):403―414.
[6]黄行松,钢筋混凝土框架柱在低周反复荷载下的受力性能研究[J].福建建筑,2000,增刊(70):2―5.Huang Xingsong.Research on the behaviors of R/Cframe columns under cyclic loading test[J].FujianArchitecture&Constuction,2000,Suppl(70):2―5.(inChinese)
[7]薛伟辰,程斌,李杰.低周反复荷载下预应力高性能混凝土梁的抗震性能[J].地震工程与工程振动,2003,23(1):78―83.Xue Weichen,Cheng Bin,Li Jie.Seismic performance ofprestressed high-performance beams under low-reversedcyclic loading[J].Earthquake Engineering andEngineering Vibration,2003,23(1):78―83.(in Chinese)
[8]薛伟辰,杨枫,苏旭霖,陆平.预应力钢骨混凝土梁低周反复荷载试验研究[J].哈尔滨工业大学学报,2007,39(8):1185―1190.Xue Weichen,Yang Feng,Su Xulin,Lu Ping.Experimental studies on prestressed steel reinforcedconcrete beams under low reversed cyclic loading[J].Journal of Harbin Institute of Technolog,2007,39(8):1185―1190.(in Chinese)
[9]孟履祥,陶学康,关建光,徐福泉.芳纶纤维筋有黏结部分预应力混凝土梁受弯性能研究[J].土木工程学报,2006,39(3):10―36.Meng Lüxiang,Tao Xuekang,Guan Jianguang,XuFuquan.Experimental study on flexural behavior ofpartially prestressed concrete beams with bonded AFRPtendons[J].China Civil Engineering Journal,2006,39(3):10―36.(in Chinese)
[10]张利梅,赵顺波,黄承逵.预应力高强混凝土梁延性性能分析与试验研究[J].工程力学,2005,22(3):166―171.Zhang Limei,Zhao Shunbo,Huang Chengkui.Experimental study of ductility of prestressedhigh-strength concrete beams[J].Engineering Mechanics,2005,22(3):166―171.(in Chinese)
[11]唐昌辉,易伟建,沈蒲生,刘健行,李跃.低周反复荷载作用下无粘结部分预应力混凝土梁受弯性能的试验研究[J].建筑结构学报,2003,24(1):19―25.Tang Changhui,Yi Weijian,Shen Pusheng,Liu Jianxing,Li Yue.Experimental study of unbonded partialprestressed concrete beams under low cyclic loadings[J].Journal of Building Structures,2003,24(1):19―25.(inChinese)
[12]罗佑新,刁波,李淑春,郝志宏.RC异形柱框架反复加载试验及数值模拟[J].工业建筑,2008,38(8):46―82.Luo Youxin,Diao Bo,Li Shuchun,Hao Zhihong.Repetitive loading test of RC frame structures withspecial shaped columns and numerical simulation[J].Industrial Construction,2008,38(8):46―82.(inChinese)
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