毕业设计文献综述
30m 40m 30m预应力混凝土连续梁桥设计
摘要
本次设计课题为一“三跨预应力混凝土连续梁桥”。本文调查了国内外预应力混凝土连续梁桥的发展状况，并对2018年公路桥梁新规范做了简要分析。设计选用适应性强、抗扭刚度大的箱型截面。本文结合最新规范和现有公路桥涵工程经验，并参考借鉴了基于2004年公路桥涵规范（JTG D62-2004）的设计文献,对本次桥梁设计制定了设计步骤，并针对预应力混凝土连续梁桥做了施工方案准备和讨论。
关键词： 预应力；连续梁；发展现状；设计步骤；施工方法
Abstract
The project of this design is “a three-span prestressed concrete continuous beam bridge”. This paper investigates the development of prestressed concrete continuous girder bridges at home and abroad, and briefly analyzes the new norms of highway bridges in 2018. The design adopts a box section with strong adaptability and high torsional rigidity. According to the latest specifications, engineering experience on present highway bridge and culvert , and the design literature witch was based on the highway bridge and culvert specification in 2004(JTG D62-2004), the article has designed a few steps for this bridge design. This paper has done some preparations and discussions for the construction plan to the prestressed concrete continuous beam bridge as well.
Key words: prestress; continuous beam; development status; design steps; construction method
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