Metal bridge over the river Save

The original «Kinfi Alexander» suspension bridge over the Save river, Yugoslavia, which was destroyed during the last world war has been reconstructed, after organising an international prize award for its design. 32 projects from various countries were submitted. The chosen design is a metal struct...

Full description

Bibliographic Details
Published in:Informes de la Construcción
Main Author: Schafer, G.
Format: Article in Journal/Newspaper
Language:Spanish
Published: Consejo Superior de Investigaciones Científicas 1963
Subjects:
Online Access:https://informesdelaconstruccion.revistas.csic.es/index.php/informesdelaconstruccion/article/view/4748
https://doi.org/10.3989/ic.1963.v15.i148.4748
Description
Summary:The original «Kinfi Alexander» suspension bridge over the Save river, Yugoslavia, which was destroyed during the last world war has been reconstructed, after organising an international prize award for its design. 32 projects from various countries were submitted. The chosen design is a metal structure, of 261 ms span. The arch of the main span has a hollow box section. The deck consists of an orthotropic slab, which has been subjected to a number of tests. The bridge has three spans (two approach and one central span), and was built without scaffolding, i. e., by cantilevering it from the springers. The roadway is 12 ms wide and there are two 3 ms wide footways. The box section arch girders are 9.60 ms deep over the piles, and 4.50 ms at the crown. The slopes on either side of the crown are 0.7 and 0.25%, respectively. The deck is very rigid, and is well capable of supporting the design loads and windage. El primitivo puente colgante Rey Alejandro, sobre el río Save, Yugoslavia, destruido durante la última guerra mundial, ha sido reconstruido por la vía de concurso internacional, al cual se presentaron 32 proposiciones de diferentes países. La solución aceptada fue una estructura metálica de 261 m de luz. El arco de este tramo tiene una sección hueca en forma de cajón. El tablero se compone de una placa ortotrópica, de la que, previamente, se han realizado varios ensayos. La obra, de tres tramos —dos para los accesos y uno central—, se construyó por procedimientos sin andamiaje, es decir, en voladizo. La anchura de la calzada es de 12 m, y dos andenes, de 3 m cada uno, para peatones. Los arcos de las vigas cajón tienen 9,60 m de canto sobre las pilas y 4,50 m en la clave. Las pendientes hacia uno y otro lado de la clave son del 0,7 y 0,25%, respectivamente. La rigidez del tablero es perfecta y suficiente para- soportar las cargas previstas y para transmitir los efectos del viento a las pilas.