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.
Where is cable-stayed bridge?
The bridge is an eight-lane structure that spans 10,100 metres (6.3 mi) across Hangzhou Bay, connecting Jiaxing and Shaoxing, two cities of Zhejiang province. It was opened on 23 July 2013 and is currently the longest cable-stayed bridge in the world.
What is a cable bridge called?
suspension bridge, bridge with overhead cables supporting its roadway. Modern suspension bridges are light and aesthetically pleasing and can span longer distances than any other bridge form. They are also among the most expensive bridges to construct.
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.
How long are cable-stayed bridges?
Initially, cable-stayed structures were used for bridge spans of 60 to 250 meters (196 to 820 feet) but today they span much longer distances and are the only system that challenges suspension bridges in super-long spans.
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 materials are used in a cable-stayed bridge?
Girders or decks of cable-stayed bridges can be designed using various shapes and materials. Typical examples are steel girders, steel composite girders, and concrete girders. Alternatively, there can be different types of girders for the main span and the approach span.
What are the components of 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.
Why are cable-stayed bridges strong?
Compared to the traditional suspension bridge design, the cables involved with a cable stayed bridge are capable of handling more pressure. That provides the deck with a greater level of consistency for travel. It keeps its shape better, even under heavy live loads, because the overall design has more rigidity.
What is the maximum length of a cable-stayed bridge?
The span of steel cable-stayed bridges has now exceeded 1000 m, with the Sutong Bridge spanning the Yangtze River in China with a main span of 1088 m, being the longest cable-stayed bridge in the world until 2012.
Who built the first cable-stayed bridge?
Fausto Veranzio came up with the first designs of cable-stayed bridges. He was born in 1551 in Sibenik and had a variety of achievements throughout his life. Veranzio published his book on engineering Machinae Novae in 1595 which included the cable-stayed design in addition to fifty-six inventions and constructions.
What are the dimensions of the cable-stayed bridge?
The span length of the bridge is 210 m + 420 m + 210 m as shown in Figure 6. The materials of girders and cables are con- crete and steel stand, respectively. … are four traffic lanes in the opposite directions.
How does Cable Bridge 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.
What are the parts of a cable-stayed bridge?
What are the disadvantages of a cable-stayed bridge?
List of the Cons of a Cable Stayed Bridge
- It can be an unstable design in certain environments.
- It has a maximum length.
- It can be a bridge design that is difficult to inspect.
- It can be susceptible to corrosion.
- It is only advantageous for short or medium distance needs.
What are the benefits of a cable-stayed bridge?
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.
What is cable stay bridge advantages and disadvantages?
Although a cable-stayed bridge can help to provide a consistently supportive deck when there are crosswinds present over a span, this option does not work well when the speed of that wind remains consistently high. This disadvantage occurs because of the rigidity that the cables provide for the overall structure.
What are disadvantages of a cable-stayed bridge?