High-Accuracy and Non-iteration Methods for Control Tension of Parallel-Strand Stay Cables

被引：1
|
作者：
Yu X. [1 ]
Wang R. [1 ]
Chen S. [2 ]
Zhen X. [1 ]
Zhang Z. [3 ,4 ]
机构：
[1] School of Civil Engineering and Transportation, South China University of Technology, Guangzhou
[2] The 5th Engineering Co., Ltd., MBEC, Jiujiang
[3] State Key Laboratory of Mechanical Behavior and System Safety of Traffic Engineering Structures, Shijiazhuang Tiedao University, Shijiazhuang
[4] Innovation Center for Wind Engineering and Wind Energy Technology of Hebei Province, Shijiazhuang
来源：
Huanan Ligong Daxue Xuebao/Journal of South China University of Technology (Natural Science) | 2022年 / 50卷 / 07期
基金：
中国国家自然科学基金;
关键词：
Catenary; Control tension; Parallel-strand; Stay cable;
D O I：
10.12141/j.issn.1000-565X.210730
中图分类号：
学科分类号：
摘要：
In order to obtain the high-accuracy solution for control tension of each strand of stay-cables during construction, this paper studied the nonlinear relationships among the parameters describing the static state of cables and proposed a high-accuracy and non-iteration solving method for control tension of each steel strand. Based on the exact solution of the catenary of the cable shape, the high-precision and approximate solution of the stress-free length of the cable was solved by the Taylor expansion method. Based on the two basic principles of forward assembly analysis and equivalent tensioning method, the equivalent static state of steel strands during the construction process was obtained by recursive calculation when different steel strands were tensioned. The high-precision solution for the control tension of each steel strand was solved by approximating the unstressed cable length, the equivalent cross-sectional area and the projected length of the diagonal cable. Taking the stay-cables of the main bridge of the Honghe Bridge (a composite girder cable-stayed bridge with a main span of 500 meters) in Zhuhai city, the Jitimen Bridge (a prestressed concrete cable-stayed bridge with a main span of 210 meters) in Zhuhai city and cables mentioned in two literatures as examples, the error between the approximate solution of the method in this study and the exact solution of the catenary of iterative solution was calculated. The results show that the calculated error of the stress-free cable length between the method proposed in this paper and the catenary solution is less than 0.002%, and the tension error of each strand is less than 2%, which fully meet the accuracy requirements of construction. The method presented in this paper has the advantages of high precision and low calculation cost, so it has a high value of popularization and application. © 2022, Editorial Department, Journal of South China University of Technology. All right reserved.
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页码：43 / 55
页数：12
相关论文
共 15 条
  • [1] ZU Xiang-sheng, LIU Zheng-yu, Bai Guo-qing, Comparison of steel strand cable and steel wire cable system, Anhui Architecture, 17, 3, pp. 26-28, (2010)
  • [2] YANG Ji-xin, YU Qiao, SHI Kuang, Et al., Comparison and analysis of parallel steel strand and parallel steel wire cable, Engineering and Construction, 33, 1, pp. 38-40, (2019)
  • [3] pp. 970-981, (2002)
  • [4] (2014)
  • [5] ZHANG Yu-zhi, LI Qiao, TANG Liang, Research of cable force control of Zhongba Jinsha river bridge in Yibin, Railway Standard Design, 8, pp. 27-30, (2005)
  • [6] YAN Wei-ming, ZHANG Zhi, CHEN Yan-jiang, Et al., Method of cable tension controlling in the long-span cable-stayed bridge construction, Journal of Civil, Architectural & Environmental Engineering, 32, 5, pp. 130-134, (2010)
  • [7] LENG Xue-hao, LIN Le-qing, HUANG Wei-dong, Control of cable force in the process of stretching the single strand of parallel strand stayed-cable, Northern Communications, 1, pp. 83-84, (2008)
  • [8] ZOU Li, PENG Xu-min, WEI Dong-sheng, Accurate calculation method of equal tensile force of parallel strand stayed-cable, Journal of Chongqing Jiaotong University (Natural Science), 34, 2, pp. 7-9, (2015)
  • [9] ZHOU Zheng-mao, GONG Zhen-qiu, WANG Su-juan, Tension control for strands in cables based on reverse analysis, Journal of Highway and Transportation Research and Development, 26, 4, pp. 73-77, (2009)
  • [10] pp. 422-428, (2014)
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