预应力混凝土连续箱梁以其结构刚度好、行车平顺舒适、外形美观、养护简单等优点而备受工程界欢迎。目前跨度为40～100m 的桥梁中,预应力混凝土连续箱梁桥已成为最主要的桥型之一。本文主要通过对榆江公路榆树至天德段20+30*2+20跨径的预应力混凝土箱梁桥进行上部构造的设计，来了解桥梁博士软件的应用、Auto CAD 的绘图功能、桥梁博士与Auto CAD 的交互以及桥梁设计的过程。文中主要描述桥梁博士的建模过程，并按照施工阶段给予解释。在施工要点中主要表明预应力钢筋的张拉方法以及预应力管道的铺设。论文在最后给出桥梁博士的计算结果、相关图示和Auto CAD 图纸。 文中同时对软件中及计算中一些必须用到的参数计算方式给予标明。论文设计遵循相关规范。
Prestressed concrete box girder with its structural rigidity for good, smooth driving comfort, appearance handsome, conservation and has the advantages of simple engineering welcome. The current span of 40 ~ 100 m bridge, continuous prestressed concrete box-girder bridge has become one of the main bridge. This article by Yu Jiang Elm Road to Germany of 20 days +30 * 2 +20 Span of prestressed concrete box-girder bridge for the upper structure of the design, to understand the application software Dr. bridge, Auto CAD graphics features, bridges Dr. and Auto CAD and interactive bridge design process. In describing the main bridge Dr. modeling process, and in accordance with the construction phase to explain. During the construction of the main points of that prestressed reinforced Tension methods and prestressed pipeline laying. Papers presented in the final results of Dr bridge, the relevant icon and Auto CAD drawings. At the same time, in terms of software and some of the parameters to be used to identify the formula. Papers related to the design follow the norms.
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