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单箱多室波形钢腹板箱梁剪力滞研究

, PP. 69-75

Keywords: 桥梁工程,多室箱梁,能量变分法,剪力滞,波形钢腹板

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Abstract:

为客观准确地对单箱多室波形钢腹板PC组合箱梁的剪力滞效应进行评价,结合单箱多室混凝土箱梁的计算特点,定义了波形钢腹板箱梁的剪滞翘曲位移函数,通过能量变分法建立了单箱双室和单箱三室波形钢腹板箱梁考虑剪力滞效应的基本微分方程。分别采用有限元方法和解析方法分析计算了范例的剪力滞效应,研究了跨中集中荷载和满跨均布载荷作用下截面的剪力滞分布规律,探讨了跨宽比对剪力滞效应的影响。研究表明,该解析解与有限元数值解吻合较好,但在箱梁顶底板与波形钢腹板接合处、外伸悬臂板边缘处有一些差异,需要进行修正。研究给出了相关的剪力滞系数,可以为波形钢腹板箱梁设计时的剪力滞系数取值提供参考。

References

[1]  郭金琼,房贞政,郑振.箱形梁设计理论 [M]. 2版.北京:人民交通出版社,2008. GUO Jin-qiong, FANG Zhen-zheng, ZHENG Zhen. Design Theory of Box Girder [M]. 2nd ed. Beijing: China Communications Press, 2008.
[2]  ABDEL-SAYED G. Effective Width of Steel Deck Plate in Bridges [J]. Journal of Structural Division, 1969, 95(ST7):1459-1474.
[3]  MALCOLM D J, REDWOOD R G. Shear Lag in Stiffened Box Girders [J]. Journal of Structural Division, 1970, 96(ST7):1403-1415.
[4]  程翔云,汤康恩. 计算箱形梁桥剪力滞效应的比拟杆法 [J].公路工程,1984(1):65-73. CHENG Xiang-yun, TANG Kang-en. Bar Simulation Method for Calculating Shear Lag Effect in Box Girder [J]. Highway Engineering, 1984(1):65-73.
[5]  REISSNER E. Analysis of Shear Lag in Box Beams by the Principle of Minimum Potential Energy [J]. Quarterly of Applied Mathematics,1946,5(3):268-278.
[6]  郭金琼,房贞政,罗孝登. 箱形梁桥剪滞效应分析 [J]. 土木工程学报,1983,16(1):1-13. GUO Jin-qiong, FANG Zhen-zheng, LUO Xiao-deng. Analysis of Shear Lag Effect in Box Girder Bridges [J]. China Civil Engineering Journal, 1983,16(1):1-13.
[7]  张士铎,谢琪. 二次抛物线变截面悬臂梁剪力滞效应及差分解 [J]. 结构工程师,1987(1):35-40. ZHANG Shi-duo, XIE Qi. Shear Lag Effect and Finite Difference Method of Quadratic Parabolic Variable Cross-section Cantilever Beam [J]. Structural Engineers, 1987(1):35-40.
[8]  罗旗帜. 薄壁箱形梁剪力滞计算的梁段有限元法 [J]. 湖南大学学报,1991(2):95-102. LUO Qi-zhi. Calculation of Shear Lag in Thin Walled Box Girders by Finite Segment Method [J]. Journal of Hunan University, 1991(2):95-102.
[9]  吴幼明,罗旗帜,岳珠峰,等. 薄壁箱梁剪力滞实验与计算研究 [J]. 公路交通科技,2004,21(2):73-76. WU You-ming, LUO Qi-zhi, YUE Zhu-feng, et al. Experimental and Analytical Study of the Shear Lag in Thin Walled Box Girders[J]. Journal of Highway and Transportation Research and Development, 2004,21(2):73-76.
[10]  钱寅泉,倪元增.箱梁剪力滞计算的翘曲函数法 [J]. 铁道学报,1990,12(2): 57-70. QIAN Yin-quan, NI Yuan-zeng. Warping Displacement Function for Calculation of Shear Lag Effect in Box Girder [J]. Journal of the China Railway Society, 1990,12(2):57-70.
[11]  韦成龙,曾庆元,刘小燕. 薄壁箱梁剪力滞分析的多参数翘曲位移函数及其有限元法 [J].铁道学报, 2000,22(5):60-64. WEI Cheng-long, ZENG Qing-yuan, LIU Xiao-yan. Warping Displacement Function and Finite Element Method for Calculation of Shear Lag Effect in Box Girder [J]. Journal of the China Railway Society, 2000,22(5):60-64.
[12]  李立峰,彭鲲,王文. 波形钢腹板组合箱梁剪力滞效应的理论与试验研究 [J]. 公路交通科技,2009,26(4): 78-83. LI Li-feng, PENG Kun, WANG Wen. Theoretical and Experimental Study on Shear Lag Effect of Composite Box Girder with Corrugated Steel Webs[J]. Journal of Highway and Transportation Research and Development, 2009,26(4): 78-83.
[13]  郑尚敏,万水. 钢桁腹组合梁剪力滞效应的有限元分析 [J]. 公路交通科技,2013,30(11): 68-72. ZHENG Shang-min, WAN Shui. Finite Element Analysis on Shear Lag Effect in Composite Girder with Steel Truss Webs[J]. Journal of Highway and Transportation Research and Development, 2013,30(11): 68-72.
[14]  雒敏,蔺鹏臻,孙理想. 单箱双室箱梁的剪力滞效应分析 [J]. 力学与实践,2013,35(6):70-74. LUO Min, LIN Peng-zhen, SUN Li-xiang. Analysis of Shear Lag Effect of Twin-cell Box Girders [J]. Mechanics in Engineering, 2013,35(6):70-74.
[15]  李丽元. 波形钢腹板组合连续箱梁剪力滞效应的理论与试验研究 [D]. 兰州:兰州交通大学,2012. LI Li-yuan. Theoretical and Experimental Research on Shear Lag Effect in Continuous Box-girder with Corrugated Steel Webs [D]. Lanzhou:Lanzhou Jiaotong University, 2012.
[16]  王静. 单箱多室波形钢腹板箱梁的受力特性分析 [D]. 西安:长安大学,2011. WANG Jing. Analysis on Mechanical Characteristics of Single-box Multi-cell Girder with Corrugated Steel Webs [D]. Xi'an: Chang'an University, 2011.

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