Extradosed bridge - Wikipedia
The bridge spans the River Barrow south of New Ross and is part of the N25 national primary route. The 230 metres (750 ft) main spans of the bridge were, in 2020, the longest concrete-only extradosed box-girder bridge spans in the world.
Extradosed Bridges in Poland—Design and Construction
2017年1月2日 · The extradosed bridge can be defined as the structure being between the girder bridge and the cable-stayed bridge (Mermigas, 2008; Collings and Gonzalez, 2013). The key feature visually distinguishing the extradosed bridge from the cable-stayed bridge is the low tower height above the deck and hence shallow stay angles.
Extradosed bridges are transitional between girders and cable-stayed bridges. Most such bridges are erected in balanced cantilever, and may be cast-in-situ or precast segmental. Virlogeux explains (1999) that the concept was partially motivated by a ‘distortion of code
Optimization of extradosed concrete bridges subjected to …
2021年3月1日 · The structural system of extradosed bridges (EB) combines the concepts of cable suspension (cable-stayed bridges, CSB) and bending of the high stiffness box-girder (prestressed box-girder bridges, PBGB). EB constitute an economic alternative to CSB and PBGB for main spans of 100 to 200 m, being used for both roadway and railway crossings [1].
The world's first extradosed bridge with corrugated steel webs: …
2018年11月9日 · This paper describes the design and construction of Ohmi–Odori Bridge in Japan, which is the world's first multi-cell extradosed prestressed composite bridge with corrugated steel webs. Structurally, the bridge combines two new technologies: a composite prestressed concrete bridge with a corrugated steel web to reduce the dead weight of the ...
Extradosed bridges: evolution and current trends - ResearchGate
2012年7月1日 · Since their appearance in 1994, extradosed bridges have played an important role in road and railway projects, competing (in médium span lengths) with cables-stayed and prestressed box girder...
Extradosed and cable-stayed bridges, exploring the boundaries
2015年5月25日 · The extradosed bridge can be thought of as intermediate between the girder and cable-stayed bridge forms. This paper explores the boundaries of this form of bridge to attempt to define them more clearly. The paper summarises previous work on extradosed bridges and outlines the authors' own findings from their parametric study of a bridge near ...
Optimization of Extradosed Concrete Bridges | SpringerLink
2017年12月6日 · The design of extradosed concrete bridges is formulated as a multi-objective optimization problem with objectives of minimum cost, minimum deflections and stresses and a Pareto solution is sought. An entropy-based approach is used to find the minimax solution through the minimization of a convex scalar function.
[PDF] Structural behavior and design criteria of extradosed bridges ...
An extradosed bridge is a unique bridge type that utilizes both prestressed girder bridge and cable-stayed bridge concepts. Since the concept of an extradosed bridge is still relatively new, there is …
The Development and Theoretical Research Analysis of Extradosed Bridge
2019年1月1日 · Abstract. The extradosed bridge, which began in Japan in the early 1990s, started relatively late in China. The extradosed bridges have the characteristics of rigidity and flexibility, and it accords with the mechanics law of the structure. It has attached more attention and has widely application prospects.