Why would a designer choose a cable stayed over suspension bridge?

Suspension bridges appear to have the advantage over cable-stayed bridges for long spans. As the span length increases, the height of the tower increases in a cable-stayed bridge without multiple towers. Cable-stayed bridges allow the construction of the individual segments of the bridge at remote locations.

What is one benefit of a cable stayed bridge over a suspension 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.

What are the advantages of a cable stayed bridge?

1. Shorter maximum length. Perhaps the most significant downside of this bridge is that it has a short maximum length of around 1,000 meters. Compare this with the suspension bridges that have to be no less than 2,000 meters long for a start.

What is a cable stayed suspension bridge?

Cable-stayed bridges are a subcategory of suspended structures. A cable-stayed bridge is similar to a suspension bridge in having towers and a deck-girder supported by cables; however, its diagonal cables transfer the vertical loads from the deck directly to the towers.

What is the difference between cable and suspension cable?

The difference lies in how the cables are connected to the towers . In suspension bridges, the cable 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.

Why are cantilever bridges good?

The steel truss cantilever bridge was a major engineering breakthrough when first put into practice, as it can span distances of over 1,500 feet (460 m), and can be more easily constructed at difficult crossings by virtue of using little or no falsework.

What is an example of a cable stayed bridge?

Stonecutters Bridge, Hong Kong – 1,018m Stonecutters Bridge was opened to traffic in 2009. Credit: Exploringlife. Stonecutters is a 1.6km-long cable-stayed bridge across the Rambler Channel in Hong Kong.

What are the pros and cons of suspension bridges?

Pros of a Suspension Bridge

• It can span over long distances.
• It is inexpensive to build.
• It is easy to maintain.
• It is incredibly versatile.
• It is aesthetically pleasing.
• It is vulnerable to the wind.
• It has load limitations.
• It costs time and money.

What is the purpose of cable bridge?

The tower of a cable-stayed bridge is responsible for absorbing and dealing with compressional forces. The cables attach to the roadway in various ways. For example, in a radial pattern, cables extend from several points on the road to a single point at the tower, like numerous fishing lines attached to a single pole.

How does a suspension bridge work?

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.

What is the difference between a suspension bridge and cable-stayed bridge?

Some people may think that a modern suspension bridge and a cable-stayed bridge are the same, but they are actually different in construction and principle. The former has cables suspended vertically from a main cable to support the deck.

How do engineers design cable-stayed bridges?

Engineers have several different options that they can use when designing a cable-stayed bridge to cross a span. The side-spar design tends to be the most common as it offers only one tower, requiring supports that are on just one side of the structure.

What are the pros and cons of cable-stayed bridges?

1 Cable-stayed bridges take less time to complete than other options. 2 The strength of a cable-stayed bridge is unquestionable. Because the cable-stayed design is similar to a suspension bridge, it is only natural to compare the two option. 3 It can be significantly cheaper to build a cable-stayed bridge.

What is a side-spar cable-stayed bridge?

A side-spar cable-stayed bridge uses a central tower supported only on one side. This design allows the construction of a curved bridge.