摘要：预应力混凝土连续梁桥是工程上广泛使用的一种桥型,它不但具有可靠的强度、抗震能力、刚度及抗裂性,而且具有行车舒适平稳、养护工作量小、伸缩缝少、造型简洁美观、设计及施工经验成熟等特点。
  本次设计的是黄河八桥设计，总跨径为192m，采用的设计方案55m+82m+55m变预应力混凝土连续梁桥。主跨为82m，边跨为55m，双向四车道，桥面分为46个单元，各截面采用的截面形式是单箱单室截面。桥面宽18m，施工工艺采用悬臂浇筑施工法，采用的挂篮悬臂浇筑施工法。在设计的过程中，我先进行了方案比选，确定了采用55m+82m+55m变预应力混凝土连续梁。在确立了相关数据之后，利用桥梁博士软件进行相关计算。计算了桥梁在荷载作用下的内力情况，配筋以及验算。34744
  计算结果表明该桥在正常使用极限状态及承载能力极限状态下，桥梁结构各主要受力构件强度、刚度及变形均满足规范要求。
毕业论文关键词：连续梁 桥面铺装 悬臂浇筑施工法 桥梁博士 安全性
Yellow river eight bridge design
Abstract: Prestressed concrete continuous beam bridge is a bridge type widely used in engineering, it is not only reliable strength, seismic capacity, rigidity and crack resistance, but also has a smooth driving comfort、less maintenance workload,、less expansion joints,、simple and beautiful styling、 design and construction experience、and more.
  The design of the Yellow River eight Bridge , span is 192m, the design uses a 55m + 82m + 55m range prestressed concrete continuous beam bridge. Main span is 82m, side span is 55m, two-way two-lane The bridge is pided into 46 units, each section in the form of cross-section using a single box single-chamber section. Wide bridge is 18m, cantilever pouring construction technology construction method, using the hanging basket cantilever pouring construction method. In the design processing, I will carry out a program of comparison, it is determined using 55m + 82m + 55m range prestressed concrete continuous beam. After the establishment of the data, the use of Dr.bridges correlation calculation software. Calculation the bridge force condition under the load, reinforcement and checking.
  The results show that the bridge in the limit state and the ultimate limit state, the bridge structure of the main force component strength, stiffness and deformation meet regulatory requirements.
Keywords: Continuous Beam Bridge Deck bridge cantilever pouring construction method, Dr. security
目录
1 绪论    1
1.1 课题的目的和意义    1
1.2连续梁的概述    1
1.3 国内外研究现状与水平    2
2 方案比选    4
2.1拱桥    4
2.2 连续梁桥    4
2.3斜拉桥    5
3 内力计算    7
3.1材料    7
3.2建模    7
3.3荷载    8
3.3.1恒载    8
3.3.2荷载组合    8
3.4承载能力极限状态组合    11
3.5包络图    14
4 配筋    14
4.1配筋截面积    14
4.2预应力估算结果    15
4.3预应力筋束布置原则    15
5 预应力损失    17
6 截面验算    19
6.1 施工阶段    19
6.2 截面强度验算    21
6.3正常使用阶段荷载组合应力验算    21
6.4截面强度验算    24
6.5 刚度验算    32
7 结束语    36
1    绪论
1.1 课题的目的和意义
本次课题是设计一座在给定地形的条件下的黄河桥梁并进行相关的计算。在这次的毕业设计中，我可以实际的进行整桥的大概设计，对以后从事相关的工作有一定的积极作用。同时，在设计中我会查阅大量的相关资料，这使我可以了解更多的桥梁方面知识。在完成论文中也可以对4年学习的内容有良好的巩固与补充。 192m预应力混凝土连续梁桥设计+CAD图纸:http://www.youerw.com/gongcheng/lunwen_32366.html