波形钢腹板箱梁桥面板横向内力计算方法
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摘要
通过静力试验,对单箱双室波形钢腹板缩尺试验梁的桥面板横向受力特点和箱梁框架变形进行分析.结合试验结果和波形钢腹板箱梁的力学特点,提出了一种刚架模型,并将波形钢腹板箱梁桥面板的横向内力计算结果与传统箱梁框架模型和公路桥规中的简支板与连续板模型的横向内力计算结果进行对比.结果表明:刚架模型和箱梁框架模型的计算结果与试验值较为吻合,误差均在10%以内;简支板与连续板模型的计算结果则较为保守,与试验值的误差在20%左右;与箱梁框架模型相比,刚架模型比较简单,并且考虑了波形钢腹板线刚度与混凝土桥面板线刚度比值对混凝土桥面板横向内力的影响.
A single-box double-cell test girder with corrugated steel webs was made to study the transverseal force and girder frame deformation of bridge deck.In order to calculate the transverse internal force, a rigid frame model was put forward with a combination of test results and mechanical characteristics of corrugated steel box girder. Then, a comparative analysis was made among the method described above and girder frame model and board model of highway bridges. Furthermore, an outcome based on the comparison of the three models and test results was presented. The results of rigid frame model and girder frame model are close to test results, the differences are less than 10%. But board model results are more conservative, the differences are about 20%. Compared to the rigid frame model, the girder frame model is more complicated, and the effects of relative ratios of web line stiffness to deck line stiffness on bridge deck transversal force are considered.
A single-box double-cell test girder with corrugated steel webs was made to study the transverseal force and girder frame deformation of bridge deck.In order to calculate the transverse internal force, a rigid frame model was put forward with a combination of test results and mechanical characteristics of corrugated steel box girder. Then, a comparative analysis was made among the method described above and girder frame model and board model of highway bridges. Furthermore, an outcome based on the comparison of the three models and test results was presented. The results of rigid frame model and girder frame model are close to test results, the differences are less than 10%. But board model results are more conservative, the differences are about 20%. Compared to the rigid frame model, the girder frame model is more complicated, and the effects of relative ratios of web line stiffness to deck line stiffness on bridge deck transversal force are considered.
引文
[1] 黄侨.桥梁钢-混凝土组合结构设计原理[M].北京:人民交通出版社,2004.HUANG Qiao.Design principle of steel-concrete composite bridge structures[M].Beijing:China Communications Press,2004.
[2] 中华人民共和国交通部.JTG D62—2004公路钢筋混凝土及预应力混凝土桥涵设计规范[S].北京:人民交通出版社,2004.Ministry of Transport of the People’s Republic of China.JTG D62—2004 Code for design of highway reinforced concrete and prestressed concrete bridges and culverts[S].Beijing:China Communications Press,2004.
[3] ELGAALY M,SESHADRI A,HAMILTON R.Bending strength of steel beams with corrugated webs[J].Journal of Structural Engineering,1997,123(6):772.
[4] BAKHT B.Simplified analysis of edge stiffened cantilever slabs[J].Journal of the Structural Division,1981,107(3):535.
[5] 方志,张志田.钢筋混凝土变截面箱梁横向受力有效分布宽度分析[J].湖南大学学报:自然科学版,2003,30(6):82.FANG Zhi,ZHANG Zhitian.Effective distribution width of the transverse internal force in R-C box girders with varied section[J].Journal of Hunan University:Natural Sciences,2003,30(6):82.
[6] 方志,郑辉,刘双阳.基于塑性分析的钢筋混凝土箱梁悬臂板横向受力有效分布宽度[J].土木工程学报,2012,45(3):35.FANG Zhi,ZHENG Hui,LIU Shuangyang.Plastic analysis of the lateral effective width of cantilever slabs of reinforced concrete box-girders[J].Journal of China Civil Engineering,2012,45(3):35.
[7] 徐利平,胡世德,杜国华.G-M法在箱梁桥面板计算中的应用[J].同济大学学报:自然科学版,2000,28(3):353.XU Liping,HU Shide,DU Guohua.Application of G-M method in analysing the deck of box girders[J].Journal of Tongji University:Natural Science,2000,28(3):353.
[8] 钟新谷,舒小娟,张昊宇.预应力混凝土箱梁横向框架效应有限元分析[J].计算力学学报,2013,30(4):549.ZHONG Xingu,SHU Xiaojuan,ZHANG Haoyu.Finite element analysis on transversal frame-effect of prestressed concrete box-girder bridge[J].Chinese Journal of Computational Mechanics,2013,30(4):549.
[9] 刘清.波形钢腹板组合箱梁横向内力理论及试验研究[D].长沙:湖南大学,2009.LIU Qing.Theoretical and experimental study on the transverse internal force of the composite box girder with corrugated steel webs[D].Changsha:Hunan University,2009.
[10] 赵品,叶见曙.波形钢腹板箱梁桥面板横向内力计算的框架分析法[J].东南大学学报:自然科学版,2012,42(5):940.ZHAO Pin,YE Jianshu.Frame analysis method of analyzing transverse internal force of the deck of box girders with corrugated steel webs[J].Journal of Southeast University:Natural Science Edition,2012,42(5):940.
[11] 李淑琴,王文炜,万水,等.预应力混凝土组合梁界面粘结的试验研究[J].工程力学,2009,26(6):141.LI Shuqin,WANG Wenwei,WAN Shui,et al.Experimental study bond behavior of interface between old and new concrete composite beam under prestressing forces[J].Engineering Mechanics,2009,26(6):141.
[12] 聂建国,朱力,唐亮.波形钢腹板的抗剪强度[J].土木工程学报,2013,46(6):97.NIE Jianguo,ZHU Li,TANG Liang.Shear strength of trapezoidal corrugated steel webs[J].China Civil Engineering Journal,2013,46(6):97.
[13] 李立峰,侯立超,孙君翠.波形钢腹板抗剪性能的研究[J].湖南大学学报:自然科学版,2015,42(11):56.LI Lifeng,HOU Lichao,SUN Juncui.Research on shear mechanical property of corrugated steel webs[J].Journal of Hunan University:Natural Sciences,2015,42(11):56.
[14] KRISTEK V.Theory of box girders[M].New York:Wiley,1979.
[15] 聂建国.钢-混凝土组合梁结构:试验、理论与应用[M].北京:科学出版社,2005.NIE Jianguo.Steel concrete composite bridges[M].Beijing:China Communications Press,2005.
[16] 刘玉擎.组合结构桥梁[M].北京:人民交通出版社,2005.LIU Yuqing.Composite structure bridge[M].Beijing:China Communications Press,2005.
[17] ELGAALY M,SESHADRI A.Girders with corrugated webs under partial compressive edge loading[J].Journal of the Structural Division:ASCE,1997,122(4):783.
[18] 徐向锋,张峰,韦成龙.预应力混凝土箱梁开裂后的刚度损伤评估[J].工程力学,2015,32(7):95.XU Xiangfeng,ZHANG Feng,WEI Chenglong.Stiffness damage assessment of prestressed concrete box-girder after cracking[J].Engineering Mechanics,2015,32(7):95.
[19] 李立峰,王芳,刘志才.体外预应力波形钢腹板组合箱梁徐变性能研究[J].湖南大学学报:自然科学版,2008,35(5):1.LI Lifeng,WANG Fang,LIU Zhicai.Study on the creep behavior of externally prestressed composite beam with corrugated steel webs[J].Journal of Hunan University:Natural Sciences,2008,35(5):1.
[20] 郭金琼,房贞政,郑振.箱形梁设计理论[M].北京:人民交通出版社,2008.GUO Jinqiong,FANG Zhenzheng,ZHENG Zhen.Design theory of box girder[M].Beijing:China Communications Press,2008.
[21] 程翔云.梁桥理论与计算[M].北京:人民交通出版社,1986.CHENG Xiangyun.Theory and calculation of the beam bridge[M].Beijing:China Communications Press,1986.
[2] 中华人民共和国交通部.JTG D62—2004公路钢筋混凝土及预应力混凝土桥涵设计规范[S].北京:人民交通出版社,2004.Ministry of Transport of the People’s Republic of China.JTG D62—2004 Code for design of highway reinforced concrete and prestressed concrete bridges and culverts[S].Beijing:China Communications Press,2004.
[3] ELGAALY M,SESHADRI A,HAMILTON R.Bending strength of steel beams with corrugated webs[J].Journal of Structural Engineering,1997,123(6):772.
[4] BAKHT B.Simplified analysis of edge stiffened cantilever slabs[J].Journal of the Structural Division,1981,107(3):535.
[5] 方志,张志田.钢筋混凝土变截面箱梁横向受力有效分布宽度分析[J].湖南大学学报:自然科学版,2003,30(6):82.FANG Zhi,ZHANG Zhitian.Effective distribution width of the transverse internal force in R-C box girders with varied section[J].Journal of Hunan University:Natural Sciences,2003,30(6):82.
[6] 方志,郑辉,刘双阳.基于塑性分析的钢筋混凝土箱梁悬臂板横向受力有效分布宽度[J].土木工程学报,2012,45(3):35.FANG Zhi,ZHENG Hui,LIU Shuangyang.Plastic analysis of the lateral effective width of cantilever slabs of reinforced concrete box-girders[J].Journal of China Civil Engineering,2012,45(3):35.
[7] 徐利平,胡世德,杜国华.G-M法在箱梁桥面板计算中的应用[J].同济大学学报:自然科学版,2000,28(3):353.XU Liping,HU Shide,DU Guohua.Application of G-M method in analysing the deck of box girders[J].Journal of Tongji University:Natural Science,2000,28(3):353.
[8] 钟新谷,舒小娟,张昊宇.预应力混凝土箱梁横向框架效应有限元分析[J].计算力学学报,2013,30(4):549.ZHONG Xingu,SHU Xiaojuan,ZHANG Haoyu.Finite element analysis on transversal frame-effect of prestressed concrete box-girder bridge[J].Chinese Journal of Computational Mechanics,2013,30(4):549.
[9] 刘清.波形钢腹板组合箱梁横向内力理论及试验研究[D].长沙:湖南大学,2009.LIU Qing.Theoretical and experimental study on the transverse internal force of the composite box girder with corrugated steel webs[D].Changsha:Hunan University,2009.
[10] 赵品,叶见曙.波形钢腹板箱梁桥面板横向内力计算的框架分析法[J].东南大学学报:自然科学版,2012,42(5):940.ZHAO Pin,YE Jianshu.Frame analysis method of analyzing transverse internal force of the deck of box girders with corrugated steel webs[J].Journal of Southeast University:Natural Science Edition,2012,42(5):940.
[11] 李淑琴,王文炜,万水,等.预应力混凝土组合梁界面粘结的试验研究[J].工程力学,2009,26(6):141.LI Shuqin,WANG Wenwei,WAN Shui,et al.Experimental study bond behavior of interface between old and new concrete composite beam under prestressing forces[J].Engineering Mechanics,2009,26(6):141.
[12] 聂建国,朱力,唐亮.波形钢腹板的抗剪强度[J].土木工程学报,2013,46(6):97.NIE Jianguo,ZHU Li,TANG Liang.Shear strength of trapezoidal corrugated steel webs[J].China Civil Engineering Journal,2013,46(6):97.
[13] 李立峰,侯立超,孙君翠.波形钢腹板抗剪性能的研究[J].湖南大学学报:自然科学版,2015,42(11):56.LI Lifeng,HOU Lichao,SUN Juncui.Research on shear mechanical property of corrugated steel webs[J].Journal of Hunan University:Natural Sciences,2015,42(11):56.
[14] KRISTEK V.Theory of box girders[M].New York:Wiley,1979.
[15] 聂建国.钢-混凝土组合梁结构:试验、理论与应用[M].北京:科学出版社,2005.NIE Jianguo.Steel concrete composite bridges[M].Beijing:China Communications Press,2005.
[16] 刘玉擎.组合结构桥梁[M].北京:人民交通出版社,2005.LIU Yuqing.Composite structure bridge[M].Beijing:China Communications Press,2005.
[17] ELGAALY M,SESHADRI A.Girders with corrugated webs under partial compressive edge loading[J].Journal of the Structural Division:ASCE,1997,122(4):783.
[18] 徐向锋,张峰,韦成龙.预应力混凝土箱梁开裂后的刚度损伤评估[J].工程力学,2015,32(7):95.XU Xiangfeng,ZHANG Feng,WEI Chenglong.Stiffness damage assessment of prestressed concrete box-girder after cracking[J].Engineering Mechanics,2015,32(7):95.
[19] 李立峰,王芳,刘志才.体外预应力波形钢腹板组合箱梁徐变性能研究[J].湖南大学学报:自然科学版,2008,35(5):1.LI Lifeng,WANG Fang,LIU Zhicai.Study on the creep behavior of externally prestressed composite beam with corrugated steel webs[J].Journal of Hunan University:Natural Sciences,2008,35(5):1.
[20] 郭金琼,房贞政,郑振.箱形梁设计理论[M].北京:人民交通出版社,2008.GUO Jinqiong,FANG Zhenzheng,ZHENG Zhen.Design theory of box girder[M].Beijing:China Communications Press,2008.
[21] 程翔云.梁桥理论与计算[M].北京:人民交通出版社,1986.CHENG Xiangyun.Theory and calculation of the beam bridge[M].Beijing:China Communications Press,1986.