论文部分内容阅读
现代桥梁设计对平面线形要求较高,不但要考虑行车的安全和舒适,还必须注意与周围环境相协调。根据桥址处的自然条件、地形、通航现状,斗门江大桥跨径布置为50 m+80 m+50 m的预应力混凝土连续弯梁桥,悬臂浇注,全桥位于R=800 m的曲线上。主要介绍了该桥的桥型方案构思、主桥的总体设计及结构构造、结构分析,探讨此类桥梁设计与施工中的关键问题。
Modern bridge design on the linear requirements of the plane is higher, not only to consider driving safety and comfort, but also must pay attention to coordination with the surrounding environment. According to the natural conditions of the bridge site, topography and navigation status quo, the prestressed concrete continuous curved beam bridge with a span of 50 m + 80 m and 50 m spanning the Doumen River Bridge is arranged. The cantilever casting and full bridge are located on the curve of R = 800 m . This paper mainly introduces the conception of the bridge type of the bridge, the overall design of the main bridge, the structural structure and the structural analysis of the main bridge, and discusses the key issues in the design and construction of such bridges.