摘要Taking the maintenance of a PC cable-stayed bridge as the background, a simulation and calculation analysis of construction control was conducted, and the scheme of stay cable force adjustment was optimized using GQJS (Software of Analysis and Designing of Highway Bridges). Bonding of the steel plates and strengthening by external tendons were achieved, and some construction control targets and safety measures for stay cable force adjustment were provided after the rehabilitation of the tension rocker bearing cables. Adjustment steps and methods were also introduced. The corresponding calculations for the service stage of this bridge were presented. Construction monitoring results showed good force distribution of all stay cables; moreover, the alignment of its main girder was improved after stay cable force adjustment. Concrete stresses, displacement at the top of pylons, and forces of tension rocker bearing cables were also considered. The desired structural goals were achieved in the construction control of the stay cable force adjustment, thereby ensuring structural safety.
Abstract：Taking the maintenance of a PC cable-stayed bridge as the background, a simulation and calculation analysis of construction control was conducted, and the scheme of stay cable force adjustment was optimized using GQJS (Software of Analysis and Designing of Highway Bridges). Bonding of the steel plates and strengthening by external tendons were achieved, and some construction control targets and safety measures for stay cable force adjustment were provided after the rehabilitation of the tension rocker bearing cables. Adjustment steps and methods were also introduced. The corresponding calculations for the service stage of this bridge were presented. Construction monitoring results showed good force distribution of all stay cables; moreover, the alignment of its main girder was improved after stay cable force adjustment. Concrete stresses, displacement at the top of pylons, and forces of tension rocker bearing cables were also considered. The desired structural goals were achieved in the construction control of the stay cable force adjustment, thereby ensuring structural safety.
陈云海, 李宏江, 吕建鸣. PC斜拉桥辅助墩摆索拉力支座恢复后的索力调整[J]. Journal of Highway and Transportation Research and Development, 2013, 7(2): 56-62.
CHEN Yun-hai, LI Hong-jiang, LÜ Jian-ming. Post-rehabilitation Cable Force Adjustment of the Tension Rocker Bearing in a PC Cable-stayed Bridge. Journal of Highway and Transportation Research and Development, 2013, 7(2): 56-62.
[1] JTG D60-2004, General Code for Design of Highway Bridges of Culverts[S]. (in Chinese)
[2] JTG D62-2004, Code for Design of Highway Reinforced Concrete and Prestressed Concete Bridges of Culverts[S].(in Chinese)
[3] JTJ 022-85, Code for Design of Highway Reinforced Concrete and Prestressed Concrete Bridges of Culverts[S].(in Chinese)
[4] JTG/T D65-01-2007, Guidelines for Design of Highway Cable-stayed Bridge[S].(in Chinese)
[5] GUAN Wan-yi, HAN Da-jian.Adjustment of Cable Force for Cable-stayed Bridges[J].Journal of Kunming University of Science and Technology, 2000, 25(1):125-128.(in Chinese)
[6] LÜ Jian-ming, SONG Jian-yong. Study on Analysis Method for Co-section Bridge Structure[J].Journal of Highway and Transportation Research and Development, 2005, 22(6):68-71.(in Chinese)
[7] LI Hong-jiang, WANG Jiang, ZHANG Yong-ming, et al.Cable Force Adjustment after Cable Replacement for Tianjin Yonghe Cable Stayed Bridge[J].Journal of Highway and Transportation Research and Development, 2008, 25(10):79-83.(in Chinese)
[8] LÜ Jian-ming, CHEN Yun-hai. Study of Analysis Method for PC Bridge Creep[J]. Journal of Highway and Transportation Research and Development, 2005, 22(7):58-63. (in Chinese)
[9] LI Hong-jiang, LI Wang-heng,ZHANG Jin-quan, et al. Construction Control for Removal of the Closure Segment in an Existing Prestressed Concrete Cable-stayed Bridge[J]. Journal of Highway and Transportation Research and Development, 2008, 25(8):61-66. (in Chinese)
[10] WANG Biao, WANG Yan, CHANG Quan-jun.Construction Control of Long-span PC Cable-stayed Bridge[J]. Technology & Economy in Areas of Communications, 2010, 12(1):76-79. (in Chinese)
[11] WANG Jin-feng, SHI Du-zheng, XU Xing. Exploration of the Optimal Cable Tension of Cable-stayed Bridge under Permanent Loads[J]. Journal of Zhejiang University:Engineering Science Edition, 2002, 36(2):40-43.(in Chinese)
[12] ZHANG Kai-yin, ZHANG Jun-hui, LIANG Xin-yu, et al. The Cable-stayed Bridge Disease Test and Cause Analyses and Reinforcement Research[J].Transportation Science & Technology, 2008, 229(4):25-28.(in Chinese)
[13] CHEN Yun-hai, CHEN Ke, LÜ Jian-ming. Analysis of Construction Control for Rehabilitation of Tension Rocker Bearing of Subsidiary Piers in PC Cable Stayed Bridge[J]. Journal of Highway and Transportation Research and Development, 2011, 28(4):79-83.(in Chinese)
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2013, Vol. 7 
