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Abstract

In order to effectively solve the disease problem of orthotropic steel bridge decks, this paper relied on a steel box girder cable-stayed bridge deck reinforcement project to carry out steel bridge deck disease analysis and reinforcement technology research. The results show that the main disease of steel bridge decks is fatigue cracking. The fatigue cracks are numerous, short, and deep, and they continuously grow and cause more severe disease. The excessive fatigue stress amplitude is the main factor leading to the fatigue cracking of steel bridge decks. Once the crack occurs, the stress amplitude of the crack tip increases continuously, and the crack will continue to expand. Theoretically, the improved ultra-high performance concrete (UHPC) reinforcement scheme can reduce the fatigue detail stress amplitude and crack tip stress amplitude of steel bridge decks by 86.4% and 92.6%, respectively (both of which are below the fatigue limit of normal amplitude). After actual bridge reinforcement, the fatigue stress amplitude of the steel bridge deck is significantly reduced, and the fatigue disease is effectively alleviated.

Publication Date

7-14-2023

DOI

10.14048/j.issn.1671-2579.2023.03.021

First Page

134

Last Page

138

Submission Date

March 2025

Reference

[1] 黄卫. 大跨径桥梁钢桥面铺装设计[J]. 土木工程学报, 2007, 40(9): 65-77. HUANG Wei. Design of deck pavement for long-span steel bridges[J]. China Civil Engineering Journal, 2007, 40(9): 65-77. [2] 王海君, 陈峰, 胡杰, 等. 钢桥面铺装脱层开裂病害冲击响应强度评价方法研究[J]. 公路交通科技, 2020, 37(11): 49-55. WANG Haijun, CHEN Feng, HU Jie, et al. Study on evaluation method of impact response strength in delamination cracking of steel deck pavement[J]. Journal of Highway and Transportation Research and Development, 2020, 37(11): 49-55. [3] 谢飞, 谢智荣, 肖百豪. 正交异性钢桥面铺装病害分析及维修对策研究[J]. 公路与汽运, 2020(5): 125-128. XIE Fei, XIE Zhirong, XIAO Baihao. Disease analysis and maintenance countermeasures of orthotropic steel bridge deck pavement[J]. Highways & Automotive Applications, 2020(5): 125-128. [4] 吴美艳, 周尚猛. 超高性能混凝土组合钢桥面承载性能试验研究[J]. 桥梁建设, 2017, 47(3): 25-29. WU Meiyan, ZHOU Shangmeng. Test study of bearing capacity of ultra-high performance concrete and steel composite bridge deck[J]. Bridge Construction, 2017, 47(3): 25-29. [5] 彭辉彬. RPC-正交异性组合桥面考虑轮载横向分布的疲劳效应分析[J]. 中外公路, 2018, 38(1): 205-211. PENG Huibin. Fatigue effect analysis of RPC- orthotropic composite bridge deck considering lateral distribution of wheel load[J]. Journal of China & Foreign Highway, 2018, 38(1): 205-211. [6] 沈锐利, 蒋雨骎, 张晋瑞. 现浇STC铺装体系施工方案对悬索桥成桥状态影响研究[J]. 中外公路, 2019, 39(1): 73-77. SHEN Ruili, JIANG Yuqin, ZHANG Jinrui. Study on influence of construction schemes of cast-in-place STC pavement system on completion state of suspension bridge[J]. Journal of China & Foreign Highway, 2019, 39(1): 73-77. [7] 田启贤, 高立强, 周尚猛, 等. 超高性能混凝土—钢正交异性板组合桥面试验研究[J]. 桥梁建设, 2019, 49(S1): 13-19. TIAN Qixian, GAO Liqiang, ZHOU Shangmeng, et al. Experimental study on ultra-high performance concrete-steel orthotropic slab composite bridge deck[J]. Bridge Construction, 2019, 49(S1): 13-19. [8] 张晋瑞, 陈国平, 胡建华, 等. 大跨径悬索桥超高性能轻型组合桥面施工控制研究[J]. 中外公路, 2020, 40(1): 85-91. ZHANG Jinrui, CHEN Guoping, HU Jianhua, et al. Research on construction control of ultra-high performance lightweight composite deck for long-span suspension bridge[J]. Journal of China & Foreign Highway, 2020, 40(1): 85-91. [9] 韦勇克. 西江二桥钢-超高性能混凝土轻型组合梁设计研究[J]. 中外公路, 2020, 40(5): 158-164. WEI Yongke. Research on design of light-weight composite beam with steel-ultra high performance concrete for the second west river bridge[J]. Journal of China & Foreign Highway, 2020, 40(5): 158-164. [10] 周尚猛, 王伟. 超高性能混凝土铺装体系在钢桥面中的应用[J]. 桥梁建设, 2019, 49(S1): 20-25. ZHOU Shangmeng, WANG Wei. Application of ultra-high performance concrete pavement system in steel bridge deck[J]. Bridge Construction, 2019, 49(S1): 20-25. [11] 中华人民共和国交通运输部. 公路钢结构桥梁设计规范: JTG D64—2015[S]. 北京: 人民交通出版社, 2015. Specifications for Design of Highway Steel Bridge: JTG D64—2015[S]. Beijing: China Communications Press, 2015. [12] 中华人民共和国交通运输部. 公路桥涵设计通用规范: JTG D60—2015[S]. 北京: 人民交通出版社, 2015. General Specifications for Design of Highway Bridges and Culverts: JTG D60—2015[S]. Beijing: China Communications Press, 2015. [13] 中华人民共和国交通运输部. 公路钢桥面铺装设计与施工技术规范: JTG/T 3364-02—2019[S]. 北京: 人民交通出版社, 2019. Specifications for Design and Construction of Pavement on Highway Steel Deck Bridge: JTG/T 3364-02—2019[S]. Beijing: China Communications Press, 2019.

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