What is meant by cable-stayed bridge?
cable-stayed bridge, bridge form in which the weight of the deck is supported by a number of nearly straight diagonal cables in tension running directly to one or more vertical towers. The towers transfer the cable forces to the foundations through vertical compression.
What are the parts of a cable-stayed bridge?
The main elements of a cable-stayed bridge are towers or pylons, deck girder(s), cable-stays, anchorages, and foundations. Tower and pylon are interchangeable terms; lighter, slender towers are often called pylons.
Where are cable-stayed bridge used?
It usually carries pedestrians, bicycles, automobiles, trucks, and light rail. It is used in places where spans need to be longer than cantilever bridge can achieve (because of its weight), but the span is short enough so a suspension bridge is not practical there economically.
What are two main types of cable stayed bridges?
A cable- stayed bridge consists of one or more towers with cables supporting the bridge deck. In terms of cable arrangements, the most common type of cable stayed bridges are fan, harp, and semi fan bridges.
What is the difference between cable-stayed bridge and suspension?
The difference lies in how the cables are connected to the towers. In suspension bridges, the cables ride freely across the towers, transmitting the load to the anchorages at either end. In cable-stayed bridges, the cables are attached to the towers, which alone bear the load.
What is the advantage of cable-stayed bridges?
Cable-stayed bridges are far less costly for road-deck lengths of 500 to 3,000 feet (the Bridge Project has a 2,000-foot main span); and they can be built in far less time. They require much less steel cable and use more precast concrete sections, which accelerates construction.
How do cable-stayed bridges carry load?
In suspension bridges, the cables ride freely across the towers, transmitting the load to the anchorages at either end. In cable-stayed bridges, the cables are attached to the towers, which alone bear the load. In a radial pattern, cables extend from several points on the road to a single point at the top of the tower.
How do cable stayed bridges work?
In cable-stayed bridges, the cables are attached to the towers, which alone bear the load. The cables can be attached to the roadway in a variety of ways. In a radial pattern, cables extend from several points on the road to a single point at the top of the tower.
Why choose a cable stayed bridge?
The following are key advantages of the cable-stayed form: much greater stiffness than the suspension bridge, so that deformations of the deck under live loads are reduced. can be constructed by cantilevering out from the tower – the cables act both as temporary and permanent supports to the bridge deck.