沿湖桥施工图设计
摘 要
预应力混凝土连续梁桥在中、小跨径及一般大跨径桥梁中一直占有主导地位,发展前景广阔。箱形截面能适应多种使用条件，特别适合于预应力混凝上连续梁桥、变宽度桥。箱梁有较大的抗扭刚度，应力值较低，徐变变形较小，箱梁截面有单箱单室、单箱双室或多室。连续箱梁具有桥面接缝少、刚度大、整体性强，外形美观，便于养护等优点。本次毕业设计是对3times;30m预应力混凝土连续小箱梁桥进行设计，通过对国内外相关规范及文献的阅读，总结出连续箱梁桥设计所需要的信息。本文简单介绍我国连续梁桥的发展、相关规范的修订、箱梁的特点、上部结构、下部结构的设计要点以及程序计算方法等相关内容。
关键词：预应力混凝土；箱型截面；连续梁桥
Yanhu Bridge Construction Drawing Design
ABSTRACT
The prestressed concrete continuous girder bridge has always played a leading role in the medium and small span and the general long span bridge, and the development prospect is broad. Box section can be adapted to a variety of use conditions, especially suitable for prestressed concrete continuous beam bridge, variable width bridge. Box girder has large torsional stiffness, low stress value, small creep deformation, box girder section has single box single chamber, single box double chamber or multiple chambers. The continuous box girder has the advantages of less joint, large stiffness, strong integrity, beautiful appearance, easy maintenance and so on. This graduation design is to design the 3times;30 m prestressed concrete continuous small box girder bridge, through reading the relevant codes and literatures at home and abroad, summarize the information needed for the design of the continuous box girder bridge. This paper briefly introduces the development of continuous beam bridge in China, the revision of relevant codes, the characteristics of box girder, the design key points of superstructure and substructure, and the calculation method of program.
Key words：Prestressed concrete ;Box section；continuous beam bridge
目录
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