Key Techniques for Demolition of Multi‑Span Continuous Arch Bridge with Concrete‑Filled Steel Tubes

Authors

WAN Chengf u, China Railway 22nd Bureau Group Third Engineering Co ., Ltd.，Xiamen , Fujian 361000 , ChinaFollow
ZENG Wenli, Southwest Jiaotong University , Chengdu , Sichuan 610000 , China

Abstract

Taking the demolition project of Jianhu Bridge as the research background，the demolition of arch bridges with concrete-filled steel tubes under complex conditions was studied.First，the current bridge demolition methods and application status were introduced，and three bridge demolition schemes were put forward according to the difficulties of the bridge demolition.The appropriate demolition scheme for the bridge was selected after comparison，and the sequence of arch bridge demolition was explained.Then，the stress characteristics of the bridge at each construction stage were analyzed，and the theoretical and measured displacement and stress at the most unfavorable stage during demolition were compared.Finally，the influence of material strength and temperature on structural displacement and stress was studied.The results show that the gantry crane method for steel trestle bridges is best suited to the demolition of bridges with navigable requirements and limited space.After the flange is cut，the working space on both sides can be increased，and the self-weight of the beam can be reduced.During the demolition of the web，the stress and displacement of the structure are proportional to the cantilever length of the beam body，and the theoretical stress and displacement are smaller than measured values.The change of material strength and temperature does not affect the force law of the structure，and the structural stress and displacement are inversely proportional to the material strength and proportional to the temperature.

Publication Date

5-7-2024

DOI

10.14048/j.issn.1671-2579.2024.02.018

First Page

164

Last Page

173

Submission Date

February 2025

Recommended Citation

Chengf u, WAN and Wenli, ZENG (2024) "Key Techniques for Demolition of Multi‑Span Continuous Arch Bridge with Concrete‑Filled Steel Tubes," Journal of China & Foreign Highway: Vol. 44: Iss. 2, Article 18.
DOI: 10.14048/j.issn.1671-2579.2024.02.018
Available at: https://zwgl1980.csust.edu.cn/journal/vol44/iss2/18

Reference

[1]ABUDAYYEH O ，SAWHNEY A ，EL-BIBANY H ，et al .Concrete bridge demolition methods and equipment [J].Journal of Bridge Engineering ，1998，3(3)：117-125.
[2]谭仁兵，马马，霍啸苏 .非对称独塔斜拉桥拆除工艺研究[J].中外公路 ，2020，40(5)：177-181.TAN Renbing ，MA Ma，HUO Xiaosu . Research on the dismantling process of asymmetric single-pylon cable-stayed bridge [J]. Journal of China & Foreign Highway ，2020，40(5)：177-181.
[3]肖列 .城市核心地段高架桥静力切割拆除技术的应用研究[D].长沙：湖南大学 ，2019 .XIAO Lie . Research on the application of static cutting and demolition technology for viaducts in the core area of the city [D].Changsha :Hunan University ，2019 .
[4]李琦，杜斌，刘奇，等.大跨度桁式组合拱桥拆除施工可行性分析 [J].中外公路 ，2022 ,42（6） ：142-145.LI Qi，DU Bin，LIU Qi，et al .Feasibility analysis for demolition construction of long-span truss composite arch bridge [J].Journal of China & Foreign Highway ,2022，42(6):142-145.
[5]LUCCIONI B M ，AMBROSINI R D ，DANESI R F . Analysis of building collapse under blast loads [J].Engineering Structures ，2004，26(1)：63-71.
[6]MOLIN C ，LAURITZEN E . Blasting of concrete :Localized cutting in and partial demolition of concrete structures [J]. Recycling Demolished Concrete and Masonry ，1992：257-301，111.
[7]管伯伦 .爆破工程 [M].北京：冶金工业出版社 ，1993 .GUAN Bolun .Blasting Engineering [M].Beijing：Metallurgical Industry Press ，1993 .
[8]钟冬望，廖乃正，马建军，等.建筑工程中地下构筑物综合拆除技术 [J].武汉科技大学学报 (自然科学版 )，2000，23(3)：278-280.ZHONG Dongwang ，LIAO Naizheng ，MA Jianjun ，et al . Comprehensive demolition technology of underground structures in construction engineering [J]. Journal of Wuhan University of Science and Technology (Natural Science Edition )，2000，23(3)：278-280.
[9]赵涵 .大跨度预应力混凝土桁式组合拱桥拆除技术研究[D].重庆：重庆交通大学 ，2013 .ZHAO Han . Research on demolition technology of long-span prestressed concrete truss composite arch bridge [D]. Chongqing ：Chongqing Jiaotong University ，2013 .
[10]石成 .钢筋混凝土连拱上部结构拆除施工与控制 [D].成都：西南交通大学 ，2008 .SHI Cheng . Reinforced concrete multi-arch superstructure demolition construction and control [D]. Chengdu ：Southwest Jiaotong University ，2008 .
[11]唐成斌 .大跨度钢拱桥的拆除与控制 [D].成都：西南交通大学，2004 .TANG Chengbin . Demolition and control of long-span steel arch bridges [D]. Chengdu :Southwest Jiaotong University ，2004 .
[12]岳忠文，黄翔 .钢管混凝土系杆拱桥临时系杆法拆除技术[J].黑龙江交通科技 ，2020，43(1)：143-145，147.YUE Zhongwen ，HUANG Xiang . Demolition technology of temporary tie rod method for CFST tied arch bridge [J]. Heilongjiang Transportation Science and Technology ，2020，43(1)：143-145，147.
[13]王君刚 .钢管 +钢筋混凝土混合结构拱桥爆破拆除关键技术研究 [D].泉州：华侨大学 ，2016 .WANG Jungang . Research on key technologies of blasting demolition of steel pipe and reinforced concrete hybrid arch bridge [D]. Quanzhou :Huaqiao University ，2016 .
[14]马少军 ,陈慧斌 ,柴文东 ,等.连续薄壁箱形肋拱桥控制爆破拆除研究与分析 [J].中外公路 ，2023 ,43（1） ：130-134.MA Shaojun ，CHEN Huibin ，CHAI Wendong ，et al .Research and analysis on controlled blasting demolition of continuous thin-walled box ribbed arch bridge [J].Journal of China & Foreign Highway ,2023，43(1):130-134.
[15]王新明 .浅谈柔性系杆拱桥拆除施工技术 [J].四川水泥 ，2019 (12)：147.WANG Xinming .Talking about the construction technology of flexible tied arch bridge demolition [J]. Sichuan Cement ，2019 (12)：147.
[16]仲世琦 .大跨度钢筋混凝土系杆拱桥施工监控与关键技术研究 [D].兰州：兰州交通大学 ，2021 .ZHONG Shiqi . Research on construction monitoring and key technologies of long-span reinforced concrete tied arch bridges [D]. Lanzhou ：Lanzhou Jiaotong University ，2021 .
[17]哈尔滨工业大学 ，中国建筑科学研究院 .钢管混凝土结构技术规程 ：CECS 28—2012 [S].北京：中国计划出版社，2012 .Harbin Institute of Technology ,China Academy of Building Research .Technical specifications for concrete-filled steel tube structures ：CECS 28—2012 [S].Beijing :China Planning Press ,2012 .
[18]张治成，胡开建，李强，等.旧桥拆除中的预应力筋放张效果探讨 [J].华东公路 ，2012 (3)：68-71.ZHANG Zhicheng ,HU Kaijian ,LI Qiang ,et al .Discussion on the effect of prestressed tendons in the demolition of old bridges [J].East China Highway ,2012 (3):68-71.
[19]中交公路规划设计院有限公司 .公路钢筋混凝土及预应力混凝土桥涵设计规范 ：JTG 3362—2018 [S].北京：人民交通出版社股份有限公司 ，2018 .CCCC Highway Consu ltants Co .,Ltd..Specifications for design highway reinforced concrete and prestressed concrete bridges and culverts ：JTG 3362—2018 [S]. Beijing :China Communications Press Co .,Ltd.，2018 .
[20]郭圣栋，林继乔，张敏，等.预应力混凝土连续梁桥 “恒载零挠度设计 ”新理念 [C]//全国既有桥梁加固 、改造与评价学术会议论文集 .南京，2008 .GUO Shengdong ，LIN Jiqiao ，ZHANG min ，et al . New concept of “Dead-load Zero Deflection Design ” for prestressed concrete continuous girder bridges [C]//Proceedings of the National Academic Conference on Reinforcement ,Reconstruction and Evaluation of Existing Bridges .Nanjing，2008 .
[21]余志武，谈遂 .预应力混凝土桥梁施工控制结构分析计算方法 [J].铁道科学与工程学报 ，2006，3(6)：7-13.YU Zhiwu ,TAN Sui .Analysis and calculation method of prestressed concrete bridge construction control structure[J].Journal of Railway Science and Engineering ,2006，3(6)：7-13.
[22]汤旭 .混凝土箱梁桥拆除结构受力特性及施工控制研究[D].武汉：湖北工业大学 ，2021 .TANG Xu . Research on the mechanical characteristics and construction control of the demolition structure of concrete box girder bridges [D]. Wuhan：Hubei University of Technology ，2021 .
[23]李自林，寇天旺 .钢管混凝土拱桥日照温度应力分析 [J].河北水利电力学院学报 ，2019 (1)：10-15.LI Zilin ，KOU Tianwang . Analysis of sunshine temperature stress of CFST arch bridge [J]. Journal of Hebei Institute of Water Conservancy and Electric Power ，2019 (1)：10-15.
[24]HUNT B ，COOKE N .Thermal calculations for bridge design [J].Journal of the Structural Division ，1975，101(9)：1763 -1781 .
[25]ELBADRY M M ，GHALI A .Temperature variations in concrete bridges [J].Journal of Structural Engineering ，1983，109(10)：2355 -2374 .