摘要墩梁固结使得预应力混凝土连续刚构桥拥有良好的性能，跨中弯矩减小的同时，增加了桥梁的跨度。这一特性使得预应力连续刚构桥在面对不同的环境时，都有着不俗的表现。其在国内外都广泛地被建筑师们采用，正是它优越性能的体现。本次毕业设计主要是对预应力连续刚构桥进行上部结构的设计，通过桥梁博士对设计进行验算。主要的工作包括：1。利用桥博建立计算模型；2。对结构进行内力分析和预应力筋的估算；3。计算成桥阶段产生的恒载、活载内力计算；4。对荷载进行组合并进行正截面抗弯和抗剪强度验算； 5。完成外文翻译和编写计算书。87495
毕业论文关键词 预应力；混凝土；刚构桥；结构计算；有限元；桥梁建模；悬臂施工法
毕业设计说明书外文摘要
Title The long-span prestressed concrete continuous rigid frame bridge
Abstracte Consolidation of the prestressed concrete continuous rifid fram bridge beams and piers has good performance in structure。It has good behavior when facing complex environment because of it’s feature that reducing cross bending moment can also increase it’s span。That the prestressed concrete continuous fram bridge is widely used by architects all the world reflects it’s superior performance。I build the bridge model of this design by Doctor Bridge。Designing the superstructure of bridge and checking calculation by Doctor Bridge are the main jobs of this graduation design。 What I do in this graduation design are those as described below。1。Using Doctor Bridge to build models。2。Carring out the analysis of structure and estimating the Pre-stressed steel bar。3。Calculating the dead load and live load when the bridge is built。4。Drawing the plans of bridge plane,general structure of main beam,steel beam layout and some other plans。5。Translating the foreign literature and writing the calculation of design。
Keywords Pre-stressed；Beton；Continuous rifid fram；Structure calculation；Finite element；Building the model of bridge ；Cantilever construction method
目 次
1 引言 1
2设计概述 3
2。1工程概况 3
2。2 设计依据 3
2。3主要技术规范 3
2。4主要技术指标 3
2。5桥位自然条件3
2。6总体设计原则 3
3 拟选方案5
3。1预应力混凝土刚构桥5
3。2独塔斜拉桥9
3。3中承式拱桥12
4方案比选17源-于Y优~尔^论:文.网www.youerw.com 原文+QQ7520`18766
5结构设计19
5。1桥型布置19
5。2施工注意事项20
5。3主要材料20
6 结构计算21
6。1计算单元划分21
6。2施工阶段划分23
6。3作用组合27
7预应力筋设计32
7。1钢束估算32 7。2预应力损失计算35
8全桥强度验算39
8。1施工阶段验算40
8。2使用阶段验算42
8。3局部应力验算45
8。4变形验算46
结论 48
致谢 49
参考文献50
附录A 51
附录B 57
附录C 70
1引言 大跨度预应力混凝土连续刚构桥设计:http://www.youerw.com/gongcheng/lunwen_138361.html