Study on Calculation Method for Incremental Launching Based on Nonlinear Analysis

Authors

• MO Shanfeng, Design Institute of Civil Engineering & Architecture of Dalian University of Technology Co ., Ltd., Dalian , Liaoning 116024 , ChinaFollow
• HUANG Cailiang, Design Institute of Civil Engineering & Architecture of Dalian University of Technology Co ., Ltd., Dalian , Liaoning 116024 , China
• QIN Hui, School of Infrastructure Engineering , Dalian University of Technology , Dalian , Liaoning 116024 , ChinaFollow

Corresponding Author

覃晖，男，博士，副教授.E-mail：hqin@dlut.edu.cn

Abstract

In view of the shortcomings of traditional incremental launching calculation methods and the assembly construction control of incremental launching beams, an incremental launching calculation method based on nonlinear analysis was proposed in this paper. This method could truly simulate the running state where the incremental launching pier remains stationary, and the beam moves forward. The assembly alignment of all segments of the beam and the real alignment of the beam under specified working conditions could be directly output. The prefabricated alignment of the main beam (i.e., unstressed alignment) did not need to be consistent with the slide alignment. When the two were inconsistent, the main beam could automatically adapt to the slide alignment without manual intervention. The whole-process finite element modeling and calculation were carried out for the background project. The calculation results indicate that the method can directly output the accurate theoretical assembly alignment of the beam. The reaction force state of the incremental launching pier is associated with the stress state of the main beam, and the elevation adjustment of the top surface of each pier only affects the reaction forces of the current pier and adjacent piers. The slide alignment can be preliminarily formulated as the bridge design alignment, and optimizing the slide alignment according to the reaction forces of piers and the stress variation curves of the beam can meet the requirements of incremental launching control.

Publication Date

6-27-2026

DOI

10.14048/j.issn.1671-2579.2026.03.020

First Page

184

Last Page

193

Submission Date

June 2026

Recommended Citation

Shanfeng, MO; Cailiang, HUANG; and Hui, QIN (2026) "Study on Calculation Method for Incremental Launching Based on Nonlinear Analysis," Journal of China & Foreign Highway: Vol. 46: Iss. 3, Article 20.
DOI: 10.14048/j.issn.1671-2579.2026.03.020
Available at: https://zwgl1980.csust.edu.cn/journal/vol46/iss3/20

Reference

[1]赵人达,张双洋.桥梁顶推法施工研究现状及发展趋势[J].中国公路学报,2016,29(2):32-43.ZHAO Renda,ZHANG Shuangyang.Research status and development trend on incremental launching construction of bridges [J].China Journal of Highway and Transport,2016,29(2):32-43.
[2]刘舟,朱勇骏,濮辉铭.桁架式梁 ‒拱组合体系顶推 -浮托施工研究 [J/OL ].中外公路,1-13 (2026 -01-19)[2026 -02-01].https://link.cnki.net/urlid/ 43.1363.U.20260119.1525.004.LIU Zhou,ZHU Yongjun,PU Huiming.Study on incremental launching-floating and hauling construction of truss type beam-arch composite system [J/OL ].Journal of China & Foreign Highway,1-13(2026 -01-19) [2026 -02-01].https://link.cnki.net/urlid/ 43.1363.U.20260119.1525.004.
[3]孙晓强,岳新兴.钢箱梁双导梁顶推施工关键技术 [J].中外公路,2024,44(6):204-212.SUN Xiaoqiang,YUE Xinxing.Key technology for incremental launching construction of double guide beam of steel box girder [J].Journal of China & Foreign Highway,2024,44(6):204-212.
[4]伍彦斌,吕茂丰,殷齐家,等.大跨简支钢箱梁顶推及高位 落 梁 施 工 关 键 技 术 [J].中 外 公 路,2024,44(1):147-154.WU Yanbin,LYU Maofeng,YIN Qijia,et al.Key construction techniques for incremental launching and high falling beam of long-span simply supported steel box girder [J].Journal of China & Foreign Highway,2024,44(1):147-154.
[5]陈军刚,王学勇,周洲,等.大跨钢 -混凝土组合箱梁无支架 顶 推 技 术 与 控 制 计 算 [J].中 外 公 路,2020,40(4):137-141.CHEN Jungang,WANG Xueyong,ZHOU Zhou,et al.Jacking technology without support and control calculation of long-span steel-concrete composited box girders [J].Journal of China & Foreign Highway,2020,40(4):137-141.
[6]王培勇,徐亮,鲁仲鑫,等.超宽钢箱梁自锚式悬索桥顶推施工技术 [J].公路交通科技,2023,40(增刊 1):341-348,363.WANG Peiyong,XU Liang,LU Zhongxin,et al.Pushing construction technology of self-anchored suspension bridge with ultra-wide steel box girder [J].Journal of Highway and Transportation Research and Development,2023,40(sup 1):341-348,363.
[7]陈涛,邱景奎,王吉.整体顶推提篮拱桥施工过程力学性能分析 [J].中外公路,2025,45(3) 145-152.CHEN Tao,QIU Jingkui,WANG Ji.Mechanical performance analysis of integral push basket arch bridge during construction [J].China Industrial Economics,2025,45(3) 145-152
[8]翁方文,田卿,田飞.大跨连续钢箱梁桥顶推施工控制技术研究 [J].公路,2018,63(3):89-92.WENG Fangwen,TIAN Qing,TIAN Fei.Research on controlling technology of incremental launching construction for large-span continues steel box girders bridge [J].Highway,2018,63(3):89-92.
[9]李传习,王琛,董创文,等.基于相位变换的顶推曲梁桥自适应无应力构形控制 [J].中国公路学报,2014,27(2):45-53.LI Chuanxi,WANG Chen,DONG Chuangwen,et al.Control of self-adaptive unstressed configuration for incrementally launched curved girder bridge based on phase transformation [J].China Journal of Highway and Transport,2014,27(2):45-53.
[10]李传习,周群,董创文.顶推钢箱梁的梁段制造构形与无应力线形实现 [J].公路交通科技,2018,35(5):40-48.LI Chuanxi,ZHOU Qun,DONG Chuangwen.Fabrication configuration and unstressed geometry achievement of beam segment of incrementally launched steel box girder[J].Journal of Highway and Transportation Research and Development,2018,35(5):40-48.
[11]SASMAL S,RAMANJANEYULU K,SRINIVAS V,et al.Simplified computational methodology for analysis and studies on behaviour of incrementally launched continuous bridges [J].Structural Engineering and Mechanics,2004,17(2):245-266.
[12]崔立恒,宋涛,连光炜,等.基于传递矩阵法和拼装角偏差的顶推梁体无应力线形的实现 [J].山东交通学院学报,2023,31(3):109-114,128.CUI Liheng,SONG Tao,LIAN Guangwei,et al.Realization of unstressed alignment of incremental launching beam based on transfer matrix method and assembly angle deviation [J].Journal of Shandong Jiaotong University,2023,31(3):109-114,128.
[13]郝笛笛,缪长青,方诗圣.连续钢箱梁桥顶推施工主梁线形修正方法研究 [J].西北工业大学学报,2023,41(4):712-721.HAO Didi,MIAO Changqing,FANG Shisheng.Updating method on geometric shape control of continuous steel box girder bridges by incremental launching construction[J].Journal of Northwestern Polytechnical University,2023,41(4):712-721.
[14]SAMPAIO A Z,MARTINS O P.The application of virtual reality technology in the construction of bridge:The cantilever and incremental launching methods [J].Automation in Construction,2014,37:58-67.
[15]杨文爽,阙水杰,楚民红.复杂竖曲线桥梁主梁顶推转动自适应控制法 [J].桥梁建设,2022,52(2):53-59.YANG Wenshuang,QUE Shuijie,CHU Minhong.Rotation adaptive control method for incremental launching construction of main girder in bridge with complex vertical curves [J].Bridge Construction,2022,52(2):53-59.
[16]王海南,楚民红,阙水杰.大跨度复杂竖曲线钢梁顶推控制关键技术 [J].测试技术学报,2024,38(3):230-239.WANG Hainan,CHU Minhong,QUE Shuijie.Key technology of jacking control for large-span complex vertical curve steel beam [J].Journal of Test and Measurement Technology,2024,38(3):230-239.
[17]董创文,李传习,张玉平,等.变曲率竖曲线梁顶推过程支点标高调整方案确定的单步模数搜索合成法 [J].土木工程学报,2015,48(1):101-111.DONG Chuangwen,LI Chuanxi,ZHANG Yuping,et al.Single-step modulus search and composition method for determining the scheme of support elevation adjustment during girder launching with vertically varied curvatures[J].China Civil Engineering Journal,2015,48(1):101-111.
[18]李传习,陈卓,董创文,等.变曲率竖曲线钢箱梁顶推过程受力分析 [J].公路与汽运,2019 (1):116-120,125.LI Chuanxi,CHEN Zhuo,DONG Chuangwen,et al.Force analysis of steel box girder with variable curvature vertical curve during pushing process [J].Highways & Automotive Applications,2019 (1):116-120,125.[19]张宏武,柯红军,陈卓异,等.不调整临时墩顶标高的双向纵坡竖曲线梁顶推方案研究及实施 [J].中外公路,2023,43(4):118-123.ZHANG Hongwu,KE Hongjun,CHEN Zhuoyi,et al.Study and implementation of jacking scheme of vertical curve beam with two-way longitudinal slope without adjusting temporary pier top elevation [J].Journal of China & Foreign Highway,2023,43(4):118-123.
[20]王俊,李传习.变曲率竖曲线钢箱梁顶推施工临时墩标高调整方案确定 [J].中外公路,2011,31(3):177-182.WANG Jun,LI Chuanxi.Determination of elevation adjustment scheme of temporary pier in jacking construction of steel box girder with variable curvature vertical curve [J].Journal of China & Foreign Highway,2011,31(3):177-182.
[21]秦顺全.桥梁施工控制:无应力状态法理论与实践 [M].北京:人民交通出版社,2007.QIN Shunquan.Bridge construction control:Theory and practice of stress-free state method [M].Beijing:China Communications Press,2007.
[22]李乔,卜一之,张清华.基于几何控制的全过程自适应施工控制系统研究 [J].土木工程学报,2009,42(7):69-77.LI Qiao,BU Yizhi,ZHANG Qinghua.Whole-procedure adaptive construction control system based on geometry control method [J].China Civil Engineering Journal,2009,42(7):69-77.
[23]梁鹏,肖汝诚,徐岳.超大跨度斜拉桥的安装构形与无应力构形 [J].长安大学学报 (自然科学版 ),2006,26(4):49-53.LIANG Peng,XIAO Rucheng,XU Yue.Assembled geometry and unstrained geometry of super long span cable-stayed bridges [J].Journal of Chang ’an University (Natural Science Edition ),2006,26(4):49-53.
[24]詹璐,陈常松,凌李华,等.斜拉桥简支合龙调控理论及智能顶推方法 [J].中外公路,2025,45(2):229-237,246.ZHAN Lu,CHEN Changsong,LING Lihua,et al.Regulation theory and intelligent incremental launching method for simply supported closure of cable-stayed bridges [J].Journal of China & Foreign Highway,2025,45(2):229-237,246.
[25]郑清刚,李永乐,王强,等.常泰长江大桥主航道桥空间钻石型桥塔内力与线形主动调控技术 [J].桥梁建设,2025,55(4):1-9.ZHENG Qinggang,LI Yongle,WANG Qiang,et al.Active internal stress and shape control techniques during construction of spatial diamond-shaped pylons of main navigational channel bridge of Changtai Changjiang River bridge [J].Bridge Construction,2025,55(4):1-9.