采用斜撑加劲的超宽混凝土梁断面设计与施工

Section Design and Construction of Super-wide Reinforced Concrete Girder with Diagonal Bracing

采用内外斜撑加劲的混凝土梁作为宽幅桥梁一种典型断面在国外桥梁建设实践中占有一席之地,但在国内却鲜有采用。从典型断面布置、关键节点构造、桥面板计算、施工工艺等方面出发,结合其在国外桥梁建设中的具体应用,阐述该种断面桥梁的合理结构形式及其技术发展趋势,旨在为宽幅桥梁的建设提供新的思路。

The reinforced concrete girder with the internal and external diagonal bracing as a typical section of wide bridge takes a place in the foreign bridge construction practice,but is rarely used in China.Combined with its application in the foreign bridge construction,its reasonable structural style and its technical development tendency of this section bridge are expounded from the typical section layout,key node construction,deck calculation and construction technology.Its aim is to provide the new thinking for the construction of the wide bridges.