普通箍筋小跨高比连梁承载力分析
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摘要
剪力墙洞口连梁一般为小跨高比连梁,其承载力计算方法是目前尚未很好解决的问题之一.根据收集到的25个跨高比小于2.5的连梁的试验数据,用多元回归分析方法分别建立了其受弯承载力和受剪承载力计算公式.公式的预测值与试验值符合较好,可供修订混凝土规范时参考.
Coupling beams in coupled shear walls are generally with small span-to-depth,and the bearing capacity calculation method of which is not yet solved suitably.Based on the experimental results of 25 coupling beam specimens gathered stirrups and span-to-depth less than 2.5,applying multiple regression analysis method,flexural and shear capacity formulae were established respectively.Predictive values by the formulae proved to agree with the experimental data.Flexural and shear capacity formulae provided could be used for revision of Code for Design of Concrete Structures of China in the future.
Coupling beams in coupled shear walls are generally with small span-to-depth,and the bearing capacity calculation method of which is not yet solved suitably.Based on the experimental results of 25 coupling beam specimens gathered stirrups and span-to-depth less than 2.5,applying multiple regression analysis method,flexural and shear capacity formulae were established respectively.Predictive values by the formulae proved to agree with the experimental data.Flexural and shear capacity formulae provided could be used for revision of Code for Design of Concrete Structures of China in the future.
引文
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[9]吴波,刘志强,林少书,等.香港现役钢筋混凝土连梁的抗震性能试验研究[J].世界地震工程,2002,18(2):9-16.WU Bo,LI U Zhi-qiang,LIN Shao-shu,et al.Experimental study on seismic performance of existing reinforced concrete coupling beams in Hong Kong[J].World Earthquake Engineering,2002,18(2):9-16.
[10]JGJ3-2002.高层建筑混凝土结构技术规程[S].北京:中国建筑工业出版社,2002.JGJ3-2002.Technical specification for concrete structures of tall building[S].Beijing:China Building Industry Press,2002.
[11]辛力,梁兴文.基于性能理论的RC框架结构抗震设计新法[J].西安建筑科技大学学报:自然科学版,2007,39(6):790-796.XIN Li,LIANG Xing-wen.A new seismic design method of RC frames according to performance-based theory[J].J.Xi′an Univ.of Arch.&Tech.(Natural Science Edition),2007,39(6):790-796.
[2]方鄂华.连系梁对双肢剪力墙弹塑性性能的影响[J].工程抗震,1985,7(4):5-10.FANG E-hua.Influence of coupling beams on the elasto-plastic properties of coupled shear walls[J].Earthquake Resistant Engineering,1985,7(4):5-10.
[3]龚炳年,方鄂华.反复荷载下联肢剪力墙结构连系梁的性能[J].建筑结构学报,1988,9(1):34-41.GONG Bing-nian,FANG E-hua.Behavior of reinforced concrete coupling beams between shear walls under cyclic loading[J].Journal of Building Structures,1988,9(1):34-41.
[4]张彬彬.高层建筑剪力墙连系梁抗震性能的试验研究[D].重庆:重庆大学,2001.ZHANG Bin-bin.Experimental research of seismic behavior of coupling beams of high-rise shear walls[D].Chongqing:Chongqing University,2001.
[5]牛绍仁,魏嘉渝,容柏生.钢筋砼连系梁静力受剪承载力[J].重庆建筑工程学院学报,1994,16(4):1-10.NI U Shao-ren,WEI Jia-yu,RONG Bo-sheng.Statical shear strength on coupling beams of reinforced concrete[J].J.Chongqing Inst.of Arch.&Eng.,1994,16(4):1-10.
[6]ZHAO Z Z,KWAN A K H,HE X G.Nonlinear finite element analysis of deep reinforced concrete coupling beams[J].Engineering Structures,2004,26:13-25.
[7]孙占国,林宗凡,戴瑞同.菱形配筋剪力墙连梁的受力性能[J].建筑结构学报,1994,15(5):14-23.SUN Zhan-guo,LI U Zong-fan,DAI Rui-tong.Behavior of coupling beam of shear wa11reinforced with inclined rhomboidal bars[J].Journal of Building Structures,1994,15(5):14-23.
[8]梁启智,韩小雷.低周反复荷载作用下刚性连梁及普通连梁性能[J].华南理工大学学报:自然科学版,1995,23(1):27-33.LIANG Qi-zhi,HAN Xiao-lei.The behavior of stiffening beams and lintel beams under cyclic loading[J].Journal of South China University of Technology(Natural Science Edition),1995,23(1):27-33.
[9]吴波,刘志强,林少书,等.香港现役钢筋混凝土连梁的抗震性能试验研究[J].世界地震工程,2002,18(2):9-16.WU Bo,LI U Zhi-qiang,LIN Shao-shu,et al.Experimental study on seismic performance of existing reinforced concrete coupling beams in Hong Kong[J].World Earthquake Engineering,2002,18(2):9-16.
[10]JGJ3-2002.高层建筑混凝土结构技术规程[S].北京:中国建筑工业出版社,2002.JGJ3-2002.Technical specification for concrete structures of tall building[S].Beijing:China Building Industry Press,2002.
[11]辛力,梁兴文.基于性能理论的RC框架结构抗震设计新法[J].西安建筑科技大学学报:自然科学版,2007,39(6):790-796.XIN Li,LIANG Xing-wen.A new seismic design method of RC frames according to performance-based theory[J].J.Xi′an Univ.of Arch.&Tech.(Natural Science Edition),2007,39(6):790-796.
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