摘要
随着斜拉桥跨径的不断增大,施工控制在斜拉桥施工过程中的作用越来越重要。对于大跨径斜拉桥的施工控制来说,中跨合龙阶段最为重要。本文以荆岳长江公路大桥为工程背景,基于自适应无应力思想,提出了一种大跨径混合梁斜拉桥的中跨合龙施工控制新方法。并采用该方法对中跨合龙施工控制的全过程进行了全面分析和评述。具体研究的内容为:
(1)采用BDCMS系统,分析了荆岳长江公路大桥最大悬臂工况和中跨合龙塔梁临时约束解除后工况几何非线性对全桥线形和内力的影响,阐述了考虑几何非线性进行理论分析对于大跨径混合梁斜拉桥中跨合龙施工控制的重要性。
(2)对大跨径混合梁斜拉桥中跨合龙施工控制提出了一种新的方法—缝接合龙法。详细阐述了该方法的基本原理和优点,提出了该方法用于斜拉桥中跨合龙时需要解决的关键技术,并成功运用于荆岳长江公路大桥中跨合龙施工控制中,取得了较好的效果。
(3)以荆岳长江公路大桥为背景,阐述了合龙前悬臂施工时线形和内力的控制对中跨合龙的重要性;对最大悬臂工况时温度对塔索梁影响进行了理论计算;详细研究了最大悬臂状态主梁精确定位控制的方法和中跨最后悬拼节段下料长度的计算方法。
(4)阐述了合理顶推力对大跨径不对称斜拉桥结构体系下中跨合龙的重要性。精确计算分析了牵引行程和牵引力的关系;提出了不对称斜拉桥中跨合龙前合理单边牵引的施工工艺和控制手段。
(5)分析了荆岳长江公路大桥合龙温度和体系转换温度变化对成桥目标线形和内力的影响。
With increasing cable-stayed bridge, the construction control in construction process of the increasingly significant position. For long-span cable-stayed bridge construction control, mid-span closing most important. With the case study of Jingyue Yangtze River Highway Bridge, based on the self-adaptive stress-free thought,put forward a kind of new technology on mid-span closing of long-span cable-stayed bridges construction control.This thesis employed new closing technique, analyzed and commented in an exhaustive way on the construction control process of long-span cable-stayed bridges. The main contents of this thesis are as follows:
1. Through BDCMS system, this thesis elaborated the influence on the bridge linearity and internal force by geometry nonlinearity under the circumstance of Jingyue Yangtze River Highway Bridge with longest cantilever and temporary constraint-free tower beam after mid-span closing. It also expounded on the importance of geometry nonlinearity theory in calculation and analysis for the construction control of long-span cable-stayed bridges with composition beam.
2. A new method– seaming close was raised for mid-span closing construction control of long-span cable-stayed bridges, the fundamental principle and strengths of which were presented explicitly in the thesis. The vital technology of adopting this method in were also pointed out. It was successfully used in the construction control of the mid-span closing for Jingyue Yangtze River Highway Bridge and received satisfying result.
3. With the case study of Jingyue Yangtze River Highway Bridge, the thesis analyzed before closure the importance of the cantilever construction on the bridge’s linearity and internal force for mid-span closing;longest cantilever the influence of the temperature of change theoretical calculation and analysis;the thesis explicitly researched on the precise positioning control method for longest cantilever and the length calculation of the mid-span cantilevering in the last section.
4. The thesis explained the significance of the adequate traction force to the mid-span closing of unsymmetrical long-span cable-stayed bridges, analyzed accurately the interaction between tractive distance and force, and introduced the technique and controlling method of the adequate unilateral tractive force before mid-span closing of the unsymmetrical cable-stayed bridges.
5. Calculated of Jingyue Yangtze River Highway Bridge closing and system conversion the influence of temperature variation to finally into bridge.
引文
[1]刘士林.斜拉桥[M].北京:人民交通出版社,2002.8,34-40
[2]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,2007,27-30
[3]项海帆.中国桥梁史纲[M].上海:同济大学出版社,2009,30-40
[4]向中富.桥梁施工控制技术[M].北京:人民交通出版社,2001,78-82
[5]余诗泉.桥梁结构计算与微机应用[M].吉林:东北林业大学,1994,27-30
[6]程翔云.桥梁理论与计算.北京[M]:人民交通出版社,1990,55-60
[7]郭金琼.箱形梁设计理论[M].北京:人民交通出版社,1991,10-16
[8]项海帆.高等桥梁结构理论[M].北京:人民交通出版社,2001,39-42
[9]罗建波.全控制过程在大跨度混合梁斜拉桥施工控制中的应用[D].西南交通大学,2010,27-30
[10]沙丽新.大跨径斜拉桥施工控制鲁棒性[D].同济大学,2005,56-60
[11]陈晔.斜拉桥主梁应力监测和合拢控制研究[D].长安大学,2006,47-51
[12]苗家武.超大跨度斜拉桥设计理论研究[D].同济大学,2006,48-54
[13]陈常松.超大跨度斜拉桥施工全过程几何非线性精细分析理论及应用研究[D].中南大学,2007,49-55
[14]李平利.大跨度斜拉桥施工阶段几何非线性静力分析[D].西南交通大学,2004,78-83
[15]顔东煌.斜拉桥合理设计状态确定与施工控制[D].湖南大学,2001,80-84
[16]李锋.斜拉桥施工测量方法[D].同济大学,2007,81-88
[17]江峰.薄壁箱梁混合单元及其在斜拉桥双重非线性分析中的应用研究[D].中南大学,2004,53-57
[18]韩富庆.大跨度斜拉桥施工控制[D].合肥工业大学,2002,56-60
[19]安金星.大跨度斜拉桥施工控制和仿真计算[D].西南交通大学,2004,34-37
[20]杨兴旺.大跨度斜拉桥施工过程非线性行为研究[D].西南交通大学,2007,39-43
[21]唐红艳.大跨度斜拉桥无应力状态法施工控制理论研究与运用[D].重庆交通大学,2008,56-60
[22]秦建军.大跨度斜拉桥最大悬臂施工状态抖振响应及控制研究[D].湖南大学,2004,75-80
[23]胡志坚.大跨度斜拉桥几何非线性影响因素及其特性研究[D].武汉理工大学,2002,30-32
[24]郭棋武.大跨斜拉桥的非线性及可靠性分析[D].湖南大学,2007,35-40
[25]宋晓辉.大跨斜拉桥合理成桥状态确定及施工控制研究[D].北京工业大学,2007,67-71
[26]徐敏.高低塔混合梁斜拉桥方案设计及其结构计算分析研究[D].西南交通大学,2006,88-93
[27]陈涛.公和斜拉桥合拢方案及其控制[D].大连理工大学,2002,19-23
[28]高荣雄.混合梁斜拉桥施工控制控制技术研究[D].武汉理工大学,2005,28-29
[29]王强.苏通大桥主桥施工控制方法介绍和研究[D].同济大学,2007,90-101
[30]梁鹏,肖汝诚,孙斌.超大跨度斜拉桥几何非线性精细化分析[J].中国公路学报,2007:57-62
[31]菜仕强.大跨径钢箱梁斜拉桥温度效应研究[D].长安大学,2010,46-51
[32]彭立志,田连民,王俊伟等.钢箱梁全支架顶推合拢施工方法[P].中国专利,2010,29-34
[33]李宗平.南京长江第三大桥钢箱梁安装技术[J].施工技术,2008,77-81
[34]黄腾,李淞泉,华锡生.钢箱梁温度变形特性分析以及合拢倪光状态控制[J].公路2002,80-83
[35]陈鸣,罗承斌,吴启和等.苏通大桥主桥中跨顶推辅助合龙技术[J].中国工程科学2008,90-95
[36]何吉刚.哈尔滨松花江斜拉桥边跨合拢技术[J].黑龙江科技信息. ,2007:237-240
[37]余少华,陈晔.五河口斜拉桥合拢控制技术研究[J].西部探矿工程,2006:198-201
[38]龚仁明.超大跨度斜拉桥方案设计[J].同济大学学报,1999:229-233
[39]陈常松,颜东煌,陈政清.超大跨度斜拉桥的自适应无应力构形控制法[J].中外公路,2008,64-67
[40]郝超.大跨度钢斜拉桥的施工监控及其目标精度值[J].中国公路学报,2003:54-57
[41]贺君,郑大为,雷俊卿.大跨度钢斜拉桥施工索力和线形控制研究[J].北京交通大学学报,2006,88-93
[42]吴溉原,颜东煌,陈常松.大跨度混合梁斜拉桥几何非线性影响分析[J].公路与汽运,2009,124127
[43]陈星烨,颜东煌,荣见华.大跨度斜拉桥梁塔几何非线性耦合分析[J].长沙交通学院学报,2001,50-54
[44]陆从飞.大跨度斜拉桥施工阶段几何非线性静力分析[J].工程结构,2009,134-137
[45]张雪松,梁鹏,贾丽君等.非线性因素对超大跨度斜拉桥成桥内力的影响[J].公路交通科技,2004,47-51
[46]经德良,颜东煌,田仲初等.荆州长江公路大桥主桥施工监控[J].施工与控制技术,2001,278-284
[47]颜东煌,文钰,刘光栋等.斜拉桥的施工最优控制[J].国外公路,1999,53-58
[48] Domenico Bruno. Nonlinear behaviour of long-span cable-stayed bridges[M], Meccanica. March, 1985,(4).pp.303-313
[49] Tae-Yeol Lee,Young-Hoon Kim. Optimization of tensioning strategy for asymmetric cable-stayed bridge and its effect on construction process[J], Structural and Multidisciplinary Optimization.2007,(6).pp.623-629
[50] Giuseppe Vairo. A quasi-secant continuous model for the analysis of long-span cable-stayed bridges[J], Meccanica.2008,(2).pp.237-250
[51] Luis Miguel C. Simoes;Joao Henrique J. O. Negrao. optimization of cable-stayed bridges subjected to earthquakes with non-linear behaviour[J], Engineering Optimization.1999
[52] Rene Walther,Bernard Houriet,Walmar Isler,Pierre Moia. Cable-Stayed Bridges[J]. London:Thoms Telford,1988
[53] Walter Podolny and John B. Scalzi. Construction and Design of Cable-Stayed Bridges[J]. John Wiley and Sons,1986
[54] David P.Billington,Aly Nazmy. History and Aesthetics of Cable-Stayed Bridges. Journal of Structural Engineering[J]. October,1990,117(19):3103-3134
[55] Man-Chung Tang. Design of Cable-Stayed Girder Bridges. Journal of Structural Division[J],ASCE. August,1972,98(ST8):1789-1802
[56] A.Grant. Pasco-Kennewick Bridge-the Longest Cable-Stayed Bridge in North America. Civil Engineering[J],ASCE,Aug,1976
[57] J. Ch. Ermopoulos,A. S. Vlahinos and Yang-cheng Wang.Stability Analysis of Cable-Stayed Bridges[J]. Computers and Structures,Vol.44,No.5,1995:1083-1089
[58] Nakai,H.,Kitada,T.Ohminami. Elastic-Plastic and Finite Displacement Analysis of Cable-Stayed Bridge[J]. Mem.Fac.Eng.Osala Unive,Vol.26,1985
[59] Seif,S.P.Dilger,W.,H.. Nonlinear Analysis and Collapse Load of PC Cable-Stayed Bridge[J]. ASCE,Journal of Structural Engineering,Vol.1162, No.3,1990
[60] H.Adeli and J.Zhang. Fully Nonlinear Analysis of Composite Girder Cable-Stayed Bridges[J]. Computers and Structures,Vol.54,No.2,1995:267-277
[61] J.F Fleming. Nonlinear static analysis of cable-stayed bridge[J]. Computers and Structures,1979,10:621-635
[62] Alys.Nazmy. Three-dimensional nonlinear static analysis of cable-stayed bridges[J]. Computers and Structures,1990,34(2):257-271
[63]铁道部大桥工程局桥梁科学研究所.斜拉桥[M].北京:科学技术文献出版社,1992,89-91
[64]范立础.桥梁工程(土木工程专业用)(上册)[M].北京:人民交通出版社,2002,87-90
[65]顾安邦.桥梁工程(土木工程专业用)(下册)[M].北京:人民交通出版社,2002,76-80
[66]中华人民共和国行业标准.公路斜拉桥设计规范(试行)(JTJ027-96)[S].北京:人民交通出版社,1997,77-79
[67]华孝良,徐光辉.桥梁结构非线性分析[M].北京:人民交通出版社,1997.6
[68]交通部公路科学研究所.公路桥涵设计通用规范(JTJ021-89)[S].北京:人民交通出版社,1989