大跨径钢筋混凝土拱桥悬臂浇筑施工控制

胡大琳; 陈定市; 赵小由; 龚建平; 李影

doi:10.19818/j.cnki.1671-1637.2016.01.004

大跨径钢筋混凝土拱桥悬臂浇筑施工控制

doi: 10.19818/j.cnki.1671-1637.2016.01.004

1.
长安大学公路学院, 陕西西安 710064
2.
中交第一公路勘察设计研究院有限公司, 陕西西安 710061
3.
威斯康星大学麦迪逊分校土木与环境工程系, 威斯康星麦迪逊 53706

基金项目:

交通运输部应用基础研究项目 2013319812100

详细信息

作者简介:
胡大琳（1995-），男，陕西蓝田人，长安大学教授，工学博士，从事桥梁结构理论研究

中图分类号: U448
计量
- 文章访问数: 640
- HTML全文浏览量: 191
- PDF下载量: 1271
- 被引次数: 0
出版历程
- 收稿日期: 2015-09-20
- 刊出日期: 2016-02-25

Construction control of cantilever casting of long span reinforced concrete arch bridge

1.
School of Highway, Chang'an University, Xi'an 710064, Shaanxi, China
2.
CCCC First Highway Consultants Co., Ltd., Xi'an 710061, Shaanxi, China
3.
Department of Civil and Environment Engineering, University of Wisconsin-Madison, Madison 53706, Wisconsin, USA

摘要

摘要: 分析了拱桥主拱圈斜拉扣锚悬臂浇筑施工体系的结构特点, 总结了拱桥悬臂浇筑施工扣、锚索力的确定方法, 分析了零位移法、定长扣索法、影响矩阵法与零弯矩法的优缺点与适用性。基于净跨径为180m的钢筋混凝土拱桥——马蹄河大桥的设计与施工方案, 分析了大跨径钢筋混凝土拱桥主拱斜拉扣锚悬臂浇筑施工的全过程, 采用零弯矩法进行索力求解, 并在最大悬臂施工阶段采用以拱圈弯曲能量为目标函数的影响矩阵法对索力进行了优化。分析结果表明: 在拱桥斜拉扣锚悬臂浇筑施工中采用零弯矩法是最直接有效的控制方法; 整个施工过程中拱圈截面由部分受拉逐渐进入全截面受压, 拱圈线形与应力满足设计要求; 拱圈上、下缘拉应力不超过1.5MPa, 压应力不超过7.0 MPa, 拱圈位移不超过10mm; 对最大悬臂施工阶段进行索力优化可以进一步调整拱圈线形, 并改善主拱圈受力状态, 通过调整可以使拱脚接近"零"应力状态; 悬臂浇筑施工阶段的稳定性与扣、锚索系统的关系密切, 合理的扣、锚索系统同时控制拱圈的内力、线形与施工阶段的稳定性; 扣、锚索拆除顺序的不同对合龙后的拱圈应力影响较大, 因此, 施工时应注意对扣、锚索系统拆除程序进行优化。研究成果成功解决了国内悬臂浇筑施工的最大跨径钢筋混凝土拱桥的施工方案设计与施工控制问题, 并可供大跨径拱桥结构设计与施工控制参考, 以期推动大跨径钢筋混凝土拱桥悬臂浇筑技术的发展。
- 钢筋混凝土拱桥 /
- 斜拉扣锚悬臂浇筑 /
- 施工控制 /
- 索力优化 /
- 零弯矩法 /
- 影响矩阵法 /
- 稳定性
Abstract: The structure characteristics of cable-stayed and anchored cantilever casting construction system for the main arch ring of arch bridge were analyzed.The methods to determine the forces of anchored cables in cantilever casting construction were summarized.The advantages, disadvantages, and applicabilities of the zero displacement method, the fixed length jacking cable method, the influence matrix method, and the zero moment method were analyzed.The design and construction schemes of Matihe Bridge being a reinforced concrete arch bridge with net-span of 180 m was taken as engineering background, and the main construction process of long span arch bridge built by using cable stayed cantilever casting method was analyzed.Thecable forces were calculated by using the zero moment method, the cable forces at the maximum cantilever construction stage were optimized by using the influence matrix method with the objective function of bending strain energy.Analysis result shows that the zero moment method is determined to be the most direct and effective control method for the cable-stayed and anchored cantilever casting construction of arch bridges.The stresses in the arch ring section change gradually from partially tensile state to completely compressive state, and both the alignment and stress of arch ring satisfy the design requirements in whole construction process.The tensile stresses of arch ring at the top and bottom sides do not exceed 1.5MPa, the compressive stresses are no more than 7.0 MPa, and the displacements of arch ring are no more than 10 mm.As the cable forces at the maximum cantilever construction stage are optimized, the alignment of arch ring can be adjusted, and its stress state is improved, thus the stress state of arch foot can be closed to "zero" state.The stability of arch ring at cantilever casting construction stage is closely related to the stayed and anchored cable system, and the internal forces, alignment, and stability during construction process are simultaneously dominated by a reasonable stayed and anchored cable system.The stress of arch ring is deeply influenced by the different removal procedures of stayed and anchored cable system, thus the removal process of stayed and anchored cable system should be optimized during construction process.The research results have been successfully applied to the design of the construction scheme and construction control of cantilever casting of the longest span reinforced concrete arch bridge in China, and can be taken as a reference for the design and construction control of other long span arch bridges, which has a practical significance in promoting the development and application of cantilever casting technology of long span reinforced concrete arch bridges. 2 tabs, 10 figs, 29 refs.
- reinforced concrete arch bridge /
- cable-stayed and anchored cantilever casting /
- construction control /
- cable force optimization /
- zero moment method /
- influence matrix method /
- stability

HTML全文

图 1 拱肋节段受力

Figure 1. Forces of arch segment

下载: 全尺寸图片幻灯片

图 2 马蹄河大桥施工现场

Figure 2. Construction site of Matihe Bridge

下载: 全尺寸图片幻灯片

图 3 马蹄河大桥立面

Figure 3. Elevation of Matihe Bridge

下载: 全尺寸图片幻灯片

图 4 节段i标准施工过程

Figure 4. Standard construction process of segment i

下载: 全尺寸图片幻灯片

图 5 扣、锚索系统

Figure 5. Stayed and anchored cable system

下载: 全尺寸图片幻灯片

图 6 结构计算模型

Figure 6. Calculation model of structure

下载: 全尺寸图片幻灯片

图 7 施工阶段YS1~YS13扣索索力

Figure 7. Tensions of cable YS1-YS13 at construction stages

下载: 全尺寸图片幻灯片

图 8 控制断面上、下缘应力

Figure 8. Stresses at top and bottom sides of control sections

下载: 全尺寸图片幻灯片

图 9 拱圈稳定安全系数

Figure 9. Stability safety factors of arch ring

下载: 全尺寸图片幻灯片

图 10 不同拆除方案下控制断面应力

Figure 10. Stresses of control sections for different removal schemes

下载: 全尺寸图片幻灯片

表 1 施工阶段划分

Table 1. Division of construction stages

表 2 主要构件材料与参数

Table 2. Materials and parameters of main components

参考文献(29)

[1]	PEREZ-FADÓN S, HERRERO J E, SÁNCHEZ J J. Los Tilos Arch on La Palma Island[C]//CHEN Bao-chun, WEI Jian-gang. Proceedings of the 6th International Conference on Arch Bridges. Zagreb: SECON-HDGK, 2010: 143-150.
[2]	RADIĆ J, ŠAVOR Z, PRPIĆ V, et al. Design and construction of the Maslenica Highway Bridge[C]//RADIĆ J, CHEN Bao-chun. Proceedings of the 1st Chinese-Croatian Joint Colloquium on Long Arch Bridges. Zagreb: SECON-HDGK, 2008: 229-240.
[3]	ŠAVOR Z, MUJKANOVIĆ N, HRELJA G, et al. Construction of Krka River Arch Bridge near Skradin[C]//CHEN Bao-chun, RADIĆ J. Proceedings of the 2nd Chinese-Croatian Joint Colloquium on Construction of Arch Bridges. Zagreb: SECON-HDGK, 2009: 323-332.
[4]	许有胜, 陈宝春. 南非布洛克兰斯拱桥[J]. 中外公路, 2005, 25(4): 109-112. https://www.cnki.com.cn/Article/CJFDTOTAL-GWGL200504035.htm XU You-sheng, CHEN Bao-chun. Bloukrans Bridge of South Africa[J]. Journal of China and Foreign Highway, 2005, 25(4): 109-112. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-GWGL200504035.htm
[5]	JORDET E A, JACKOBSEN S E. The Svinesund Bridge[J]. Structural Concrete, 2007, 8(4): 201-209. doi: 10.1680/stco.2007.8.4.201
[6]	ZANETELL D. The Colorado River Bridge at Hoover Dam―overview[J]. HPC Bridge Views, 2010(6): 1-11.
[7]	ŠAVOR Z, BLEIZIFFER J. Long span concrete arch bridges of Europe[C]//RADIĆ J, CHEN Bao-chun. Proceedings of the 1st Chinese-Croatian Joint Colloquium on Long Arch Bridges. Zagreb: SECON-HDGK, 2008: 171-180.
[8]	ŠAVOR Z, MUJKANNOVIC' N, HRELJA G. Design and construction of Krka River Arch Bridge[C]//RADIĆ J, CHEN Bao-chun. Proceedings of the 1st Chinese-Croatian Joint Colloquium on Long Arch Bridges. Zagreb: SECON-HDGK, 2008: 217-228.
[9]	CHEN Bao-chun. Recent development and future trends of arch bridges[C]//RADIĆ J, KUŠTER M, ŠAVOR Z. Proceedings of the 7th International Conference on Arch Bridges. Zagreb: SECON-CSSE, 2013: 29-46.
[10]	RADIĆ J, KUŠTER M. Aesthetics and sustainability of arch bridges[C]//RADIĆ J, KU kETR M, ŠAVOR Z. Proceedings of the 7th International Conference on Arch Bridges. Zagreb: SECON-CSSE, 2013: 13-28.
[11]	WÖLFEL R V. The bridge over the Wilde Gera Valley, the longest-spanning road arch bridge in Germany[C]//RADIĆ J, KUŠTER M, ŠAVOR Z. Proceedings of the 7th International Conference on Arch Bridges. Zagreb: SECON-CSSE, 2013: 409-416.
[12]	WÖLFEL R V. The arch bridges of the high-speed-railway across the Thuringian Forest: different erection methods[C]//RADIĆ J, KUŠTER M, ŠAVOR Z. Proceedings of the 7th International Conference on Arch Bridges. Zagreb: SECON-CSSE, 2013: 47-60.
[13]	CHEN Bao-chun. Long span arch bridges in China[C]∥RADIĆ J, CHEN Bao-chun. Proceedings of the 1st Chinese-Croatian Joint Colloquium on Long Arch Bridges. Zagreb: SECON-HDGK, 2008: 119-134.
[14]	CHEN Bao-chun, LIN Ye. An overview of long span concrete arch bridges in China[C]∥RADIĆ J, CHEN Bao-chun. Proceedings of the 1st Chinese-Croatian Joint Colloquium on Long Arch Bridges. Zagreb: SECON-HDGK, 2008: 163-170.
[15]	XU Yong, CHEN Lie, XIE Hai-qing, et al. Design of the Beipanjiang Bridge on the high-speed railway between Shanghai and Kunming[C]∥RADIĆ J, CHEN Bao-chun. Proceedings of the 3rd Chinese-Croatian Joint Colloquium on Sustainable Arch Bridges. Zagreb: SECON-CSSE, 2011: 71-82.
[16]	XU Yong, CHEN Ke-jian, REN Wei, et al. Design of Nanpanjiang Grand Bridge on high-speed railway from Kunming to Nanning[C]∥RADIĆ J, CHEN Bao-chun. Proceedings of the 3rd Chinese-Croatian Joint Colloquium on Sustainable Arch Bridges. Zagreb: SECON-CSSE, 2011: 83-90.
[17]	陈宝春, 叶琳. 我国混凝土拱桥现状调查与发展方向分析[J]. 中外公路, 2008, 28(2): 89-96. https://www.cnki.com.cn/Article/CJFDTOTAL-GWGL200802027.htm CHEN Bao-chun, YE Lin. Investigation and analysis on the present situation and development direction of concrete arch bridges in China[J]. Journal of China and Foreign Highway, 2008, 28(2): 89-96. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-GWGL200802027.htm
[18]	叶琳. 混凝土拱桥斜拉悬臂浇筑施工技术[J]. 福建建筑, 2012, 171(9): 61-64. https://www.cnki.com.cn/Article/CJFDTOTAL-FJJZ201209020.htm YE Lin. Cable cantilever casting construction technology of concrete arch bridge[J]. Fujian Architecture and Construction, 2012, 171(9): 61-64. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-FJJZ201209020.htm
[19]	陈宝春. 拱桥技术的回顾与展望[J]. 福州大学学报: 自然科学版, 2009, 37(1): 94-106. https://www.cnki.com.cn/Article/CJFDTOTAL-FZDZ200901019.htm CHEN Bao-chun. View and review of arch bridge technology[J]. Journal of Fuzhou University: Natural Science Edition, 2009, 37(1): 94-106. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-FZDZ200901019.htm
[20]	廖旭, 聂东, 张佐安, 等. 白沙沟大桥拱圈悬浇施工[J]. 公路, 2007(9): 49-54. https://www.cnki.com.cn/Article/CJFDTOTAL-GLGL200709010.htm LIAO Xu, NIE Dong, ZHANG Zuo-an, et al. Cantilever casting construction techniques of arch ring of Baishagou Bridge[J]. Highway, 2007(9): 49-54. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-GLGL200709010.htm
[21]	TIAN Zhong-chu, PENG Wen-ping, ZHANG Jian-ren. Cable force control in the construction of arch bridges using inclined cable-stayed buckle and cantilever method[C]//RADIĆ J, KUŠTER M, ŠAVOR Z. Proceedings of the 7th International Conference on Arch Bridges. Zagreb: SECON-CSSE, 2013: 547-554.
[22]	李晓斌, 蒲黔辉, 杨永清, 等. 钢筋混凝土拱桥悬臂浇注施工模型试验设计与索力优化[J]. 公路, 2007(7): 7-11. https://www.cnki.com.cn/Article/CJFDTOTAL-GLGL200707004.htm LI Xiao-bin, PU Qian-hui, YANG Yong-qing, et al. Model design and optimization of cable force for cantilevering cast construction of reinforced concrete arch bridge[J]. Highway, 2007(7): 7-11. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-GLGL200707004.htm
[23]	亓路宽, 陈占力, 宋建永, 等. 拱桥悬浇扣挂施工中最大悬臂状态下的索力调整[J]. 公路交通科技, 2007, 24(7): 82-85. https://www.cnki.com.cn/Article/CJFDTOTAL-GLJK200707018.htm QI Lu-kuan, CHEN Zhan-li, SONG Jian-yong, et al. Optimization of cable forces before joining during cantilever construction for arch bridge[J]. Journal of Highway and Transportation Research and Development, 2007, 24(7): 82-85. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-GLJK200707018.htm
[24]	周叶军, 周厚斌, 张大伟. 基于ANSYS的悬臂浇筑拱桥施工扣索索力优化[J]. 四川建筑, 2009, 29(1): 211-213. https://www.cnki.com.cn/Article/CJFDTOTAL-SCJI200901094.htm ZHOU Ye-jun, ZHOU Hou-bin, ZHANG Da-wei. Cable force optimization for reinforced concrete arch bridge with cantilever cast method based on ANSYS[J]. Sichuan Architecture, 2009, 29(1): 211-213. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-SCJI200901094.htm
[25]	周叶军. 悬臂浇筑钢筋混凝土拱桥最优扣索索力计算方法研究[D]. 成都: 西南交通大学, 2008. ZHOU Ye-jun. Study on calculation method of optimal stayed-buckle cable force for reinforced concrete arch bridge with cantilever cast method[D]. Chengdu: Southwest Jiaotong University, 2008. (in Chinese)
[26]	张应奎. 太平湖大桥缆索吊装研究[D]. 合肥: 合肥工业大学, 2006. ZHANG Ying-kui. Study on cable erection construction of Taiping Lake Large Bridge[D]. Hefei: Hefei University of Technology, 2006. (in Chinese)
[27]	乔玉英. 定长扣索法在大跨径钢管混凝土拱桥拱肋安装中的应用[D]. 重庆: 重庆交通学院, 2003. QIAO Yu-ying. The application of limit length of cable method in long-span concrete filled steel tubular arch bridge's rib assembling[D]. Chongqing: Chongqing Jiaotong University, 2003. (in Chinese)
[28]	蔡净. 定长扣索法安装拱桁架节段控制索力计算[J]. 中南公路工程, 2003, 28(3): 16-17, 26. https://www.cnki.com.cn/Article/CJFDTOTAL-ZNGL200303004.htm CAI Jing. Calculation of force in control cable for arch segment erection with one-time jacking cable method[J]. Central South Highway Engineering, 2003, 28(3): 16-17, 26. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-ZNGL200303004.htm
[29]	牛润明, 安蕊梅, 邓海. 钢管混凝土拱桥施工关键技术及稳定性分析[J]. 筑路机械与施工机械化, 2013, 30(3): 67-69. https://www.cnki.com.cn/Article/CJFDTOTAL-ZLJX201303042.htm NIU Run-ming, AN Rui-mei, DENG Hai. Key construction technique and stability analysis of concrete-filled steel tube arch bridge[J]. Road Machinery and Construction Mechanization, 2013, 30(3): 67-69. (in Chinese) https://www.cnki.com.cn/Article/CJFDTOTAL-ZLJX201303042.htm