基于整体力学分析的自锚式悬索桥主缆找形法
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TU448.25

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A Method for Determining Cable Shape of a Self-Anchored Suspension Bridge Based on an Overall Mechanical Analysis
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    摘要:

    针对分段悬链线法收敛性能差、计算效率低,提出了一种新的数值计算方法——基于整体力学分析的自锚式悬索桥主缆坐标体系法。这种方法假设初始缆形为直线段,建立整体力学平衡方程求解锚固力,反复迭代,求出目标缆形。以新建成的河北省涉县赤水湾大桥为依托,利用Matlab编写程序,对坐标体系法计算的结果与实测结果进行比较,证明该方法具有收敛速度快,准确性高等优点,值得推广应用。

    Abstract:

    Aimed at the shortcomings of the segmental catenary method, such as poor convergence performance and low computational efficiency, this paper proposes a coordinate system method based on overall mechanical analysis (COM). In this method, the initial cable shape is assumed to be linear and the target cable shape is then calculated by iterations based on the overall equilibriums of forces. This method is used to calculate the cable shape of the Chishui Bay Bridge in Hebei Province by MATLAB, and the results are compared with measured data. The comparison shows that the proposed method has a faster convergence speed and higher accuracy.

    参考文献
    [1] Ochsendorf J A, Billington D P. Self-anchored suspension bridges[J]. Journal of Bridge Engineering, 1999, 4(3): 151-156.
    [2] 吕建鸣. 大跨度悬索桥施工控制分析[J]. 公路交通科技, 1994, 11(1):33-39.Lv Jianming. Analysis on construction control of long-span suspension bridge[J]. Journal of Highway and Transportation Research and Development,
    [3] 沈锐利. 悬索桥主缆系统设计及架设计算方法研究[J]. 土木工程学报, 1996, (02):3-9.Shen Ruili. Design and calculation method of main cable system of suspension bridge[J]. China Civil Engineering Journal, 1996(02):3-9. 1994(01):33-39.
    [4] Ohtsuki S. Lecture and private discussions, 1996.
    [5] Kim H K, Lee M J, Chang S P. Determination of hanger installation procedure for a self-anchored suspension bridge[J]. Engineering Structures, 2006, 28(7):959-976.
    [6] 宋旭明, 戴公连. 自锚式悬索桥主缆线形计算方法及施工过程分析[J]. 中外公路, 2009, 29(06): 135-140.Song Xuming, Dai Gonglian. Analysis of calculation method of cable shape and construction process of self-anchored suspension bridge[J]. Journal of China Foreign Highway, 2009, 29(06): 135-140.
    [7] Kim H K, Kim M Y. Efficient combination of a TCUD method and an initial force method for determining initial shapes of cable-supported bridges[J]. International Journal of Steel Structure, 2012, 12(2): 157-174.
    [8] Sun Yuan, Zhu Hongping, Xu Dong. New Method for Shape Finding of Self-Anchored Suspension Bridges with Three-Dimensionally Curved Cables[J]. Journal of Bridge Engineering, 2015, 20(2):107-114.
    [9] JTG D65T-05-2015. 公路悬索桥规范.JTG D65T-05-2015. China Specifications for Design of Highway Suspension Bridge.
    [10] Matlab.[DB/OL]. <http://www..mathworks.cn/>
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刘超,高展.基于整体力学分析的自锚式悬索桥主缆找形法[J].同济大学学报(自然科学版),2020,48(01):1~6

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历史
  • 收稿日期:2019-04-04
  • 最后修改日期:2019-10-25
  • 录用日期:2019-06-27
  • 在线发布日期: 2020-01-20
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