What two factors make cable-stayed bridges preferable to suspension bridges?

They require much less steel cable and use more precast concrete sections, which accelerates construction. In short, cable-stayed bridges bear the road-deck weight differently, are faster to build and require less construction materials than suspension bridges.

What helps a cable-stayed bridge stay up?

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 2 characteristics of a cable-stayed bridge?

A cable-stayed bridge has one or more towers (or pylons), from which cables support the bridge deck. A distinctive feature are the cables or stays, which run directly from the tower to the deck, normally forming a fan-like pattern or a series of parallel lines.

When should the suspension bridge be used?

The purpose of the stiffening element is to ensure aerodynamic stability and to limit the local angel changes in the deck. Suspension bridges are used for spans of 300– 2300 m. The bridge can be erected without any ground-based towers.

What is 1 disadvantage to a cable-stayed bridge?

List of the Cons of a Cable Stayed Bridge. 1. It can be an unstable design in certain environments. A cable stayed bridge should not be installed in a region that is known to experience high wind speeds on a consistent basis.

What materials do cable-stayed bridges use?

The most common cable-stayed composite deck consists of two longitudinal steel plate girders, suspended by stay cables, and a concrete slab supported on a grid formed by the main girders and closely spaced cross-girders.

How long can cable stayed bridges span?

around 1000 m.
Cable-stayed bridges have the second-longest spanning capacity (after suspension bridges), and they are practically suitable for spans up to around 1000 m.

Where are cable stayed bridges 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.

Is the Golden Gate Bridge a cable stayed bridge?

Longest suspension bridge in the world The Golden Gate Bridge is a suspension bridge, meaning it relies on cables and suspenders under tension along with towers under compression to cross a long distance without any intermediate supports.

Do cable stayed bridges have anchorages?

Cable-stayed bridges differ from their suspension predecessors in that they don’t require anchorages, nor do they need two towers. Instead, the cables run from the roadway up to a single tower that alone bears the weight.

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.

How is a suspension bridge used?

A suspension bridge carries vertical loads through curved cables in tension. These loads are transferred both to the towers, which carry them by vertical compression to the ground, and to the anchorages, which must resist the inward and sometimes vertical pull of the cables.