无黏结预应力型钢混凝土梁受弯承载力试验研究
|
摘要
为探讨无黏结预应力型钢混凝土梁受弯承载力状况,采用试验手段研究5根无黏结预应力型钢混凝土梁、1根无黏结预应力混凝土梁和1根型钢混凝土梁的受弯性能,通过详细分析其裂缝形态、受力性能及无黏结预应力筋应力增量变化规律,基于钢筋混凝土结构理论,提出无黏结预应力型钢混凝土梁正截面受弯承载力计算公式,公式计算结果与试验结果吻合较好。
This paper studied the flexural performance of five unbonded prestressed steel reinforced concrete beams(USRCB), one unbonded prestressed concrete beam(UPCB) and one steel reinforced concrete beam(SRCB) by experiment. Crack modes, flexural performance and variety law of stress increment of unbonded prestressed tendons were analyzed in detail. Based on the theory of reinforcement concrete structure, flexural capacity formula of USRCB was proposed and calculation results was in good agreement with the test results. The article has certain innovation and practical value.
This paper studied the flexural performance of five unbonded prestressed steel reinforced concrete beams(USRCB), one unbonded prestressed concrete beam(UPCB) and one steel reinforced concrete beam(SRCB) by experiment. Crack modes, flexural performance and variety law of stress increment of unbonded prestressed tendons were analyzed in detail. Based on the theory of reinforcement concrete structure, flexural capacity formula of USRCB was proposed and calculation results was in good agreement with the test results. The article has certain innovation and practical value.
引文
[1]胡翔,薛伟辰.预应力钢骨混凝土梁研究与应用进展[J].建筑技术,2006,37(5):336-339.HU Xiang,XUE Weichen.Progress in research and application of PSRC beams[J].Architecture Technology,2006,37(5):336-339.
[2]徐胜超.预应力钢骨混凝土梁应用与研究进展[J].山西建筑,2010,36(7):60-61.XU Shengchao.Application and research progress of prestressed steel reinforced concrete beam[J].Shanxi Architecture,2010,36(7):60-61.
[3]刘鲲鹏,李卫东,张涛.浅谈预应力型钢混凝土结构的发展概况[J].科技创新导报,2009(12):60-60.LIU Kunpeng,LI Weidong,ZHANG Tao.Development of prestressed steel reinforced concrete structure[J].Science and Technology Innovation Herald,2009(12):60-60.
[4]傅传国,李玉莹,梁书亭.预应力型钢混凝土简支梁受弯性能试验研究[J].建筑结构学报,2007,28(3):62-73.FU Chuanguo,LI Yuying,LIANG Shuting.Experimental study on simply supported prestressed steel reinforced concrete beams[J].Journal of Building Structures,2007,28(3):62-73.
[5]张博.无黏结预应力型钢混凝土梁受弯性能的试验研究[D].长沙:湖南大学,2013.ZHANG Bo.Experimental study on flexural behavior of unbonded prestressed steel reinforced concrete beams[D].Chansha:Hunan University,2013.
[6]Dall’Asta A,Dezi L.Nonlinear analysis of beams prestressed by unbonded cables[J].Journal of Engineering Mechanics,1993,119(4):720-732.
[7]Albrecht P,LI W,Saadatmanesh H.Fatigue strength of prestressed composite steel concrete beams[J].Journal of Structural Engineering,1995,121(12):1850-1856.
[8]杜进生,刘西拉.基于结构变形的无黏结预应力筋应力变化研究[J].土木工程学报,2003,36(8):12-19.DU Jinsheng,LIU Xila.Research on the variations of unbonded prestressed tendon based upon the structural deformation[J].China Civil Engineering Journal,2003,36(8):12-19.
[9]王景全,刘钊,吕志涛.基于挠度的体外与体内无黏结预应力筋应力增量[J].东南大学学报,2005,35(6):915-919.WANG Jingquan,LIU Zhao,LüZhitao.Stress increment of prestressing tendons base on deflection for unbonded or external prestressed beams[J].Journal of Southeast University,2005,35(6):915-919.
[10]潘立.无黏结预应力钢筋束极限应力的计算[J].工业建筑,1988(3):3-9.PAN Li.Calculation of ultimate stress of unbonded prestressed tendons[J].Industrial Construction,1988(3):3-9.
[11]邵永健,赵鸿铁.型钢混凝土梁正截面承载力计算理论的对比分析[J].西安建筑科技大学学报,2006,38(3):374-378.SHAO Yongjian,ZHAO Hongtie.Comparative study on the calculation theory for the capacity of steel reinforced concrete beams[J].Journal of Xi’an University of Arch&Tech,2006,38(3):374-378.
[12]JGJ 138—2001,型钢混凝土组合结构技术规程[S].JGJ 138—2001,Technical specification for steel reinforced concrete composite structure[S].
[13]YB 9082—2006,钢骨混凝土结构技术规程[S].YB 9082—2006,Technical specification for steel reinforced concrete structures[S].
[14]刘健行.无黏结部分预应力砼梁受弯承载力计算[J].建筑结构学报,1992,13(6):30-40.LIU Jianxing.Calculation of Flexural capacity of unbonded partially prestressed concrete beams[J].Journal of Building Structures,1992,13(6):30-40.
[15]唐昌辉.无黏结预应力混凝土梁和型钢混凝土柱的试验与研究[D].长沙:湖南大学,2003.TANG Changhui.Experiments and researches on unbonded prestressed concrete beams and steel reinforced concrete columns[D].Changsha:Hunan University,2003.
[2]徐胜超.预应力钢骨混凝土梁应用与研究进展[J].山西建筑,2010,36(7):60-61.XU Shengchao.Application and research progress of prestressed steel reinforced concrete beam[J].Shanxi Architecture,2010,36(7):60-61.
[3]刘鲲鹏,李卫东,张涛.浅谈预应力型钢混凝土结构的发展概况[J].科技创新导报,2009(12):60-60.LIU Kunpeng,LI Weidong,ZHANG Tao.Development of prestressed steel reinforced concrete structure[J].Science and Technology Innovation Herald,2009(12):60-60.
[4]傅传国,李玉莹,梁书亭.预应力型钢混凝土简支梁受弯性能试验研究[J].建筑结构学报,2007,28(3):62-73.FU Chuanguo,LI Yuying,LIANG Shuting.Experimental study on simply supported prestressed steel reinforced concrete beams[J].Journal of Building Structures,2007,28(3):62-73.
[5]张博.无黏结预应力型钢混凝土梁受弯性能的试验研究[D].长沙:湖南大学,2013.ZHANG Bo.Experimental study on flexural behavior of unbonded prestressed steel reinforced concrete beams[D].Chansha:Hunan University,2013.
[6]Dall’Asta A,Dezi L.Nonlinear analysis of beams prestressed by unbonded cables[J].Journal of Engineering Mechanics,1993,119(4):720-732.
[7]Albrecht P,LI W,Saadatmanesh H.Fatigue strength of prestressed composite steel concrete beams[J].Journal of Structural Engineering,1995,121(12):1850-1856.
[8]杜进生,刘西拉.基于结构变形的无黏结预应力筋应力变化研究[J].土木工程学报,2003,36(8):12-19.DU Jinsheng,LIU Xila.Research on the variations of unbonded prestressed tendon based upon the structural deformation[J].China Civil Engineering Journal,2003,36(8):12-19.
[9]王景全,刘钊,吕志涛.基于挠度的体外与体内无黏结预应力筋应力增量[J].东南大学学报,2005,35(6):915-919.WANG Jingquan,LIU Zhao,LüZhitao.Stress increment of prestressing tendons base on deflection for unbonded or external prestressed beams[J].Journal of Southeast University,2005,35(6):915-919.
[10]潘立.无黏结预应力钢筋束极限应力的计算[J].工业建筑,1988(3):3-9.PAN Li.Calculation of ultimate stress of unbonded prestressed tendons[J].Industrial Construction,1988(3):3-9.
[11]邵永健,赵鸿铁.型钢混凝土梁正截面承载力计算理论的对比分析[J].西安建筑科技大学学报,2006,38(3):374-378.SHAO Yongjian,ZHAO Hongtie.Comparative study on the calculation theory for the capacity of steel reinforced concrete beams[J].Journal of Xi’an University of Arch&Tech,2006,38(3):374-378.
[12]JGJ 138—2001,型钢混凝土组合结构技术规程[S].JGJ 138—2001,Technical specification for steel reinforced concrete composite structure[S].
[13]YB 9082—2006,钢骨混凝土结构技术规程[S].YB 9082—2006,Technical specification for steel reinforced concrete structures[S].
[14]刘健行.无黏结部分预应力砼梁受弯承载力计算[J].建筑结构学报,1992,13(6):30-40.LIU Jianxing.Calculation of Flexural capacity of unbonded partially prestressed concrete beams[J].Journal of Building Structures,1992,13(6):30-40.
[15]唐昌辉.无黏结预应力混凝土梁和型钢混凝土柱的试验与研究[D].长沙:湖南大学,2003.TANG Changhui.Experiments and researches on unbonded prestressed concrete beams and steel reinforced concrete columns[D].Changsha:Hunan University,2003.