Cable Stayed Bridge And Suspension Bridge

Cable bridges such as cable-stayed bridges and suspension bridges are supported by members such as cables reinforced girders and pylons. Ropes are the essential load-bearing components of cable-stayed bridges and suspension bridges.

Rion Antirion Bridge Greece Cable Stayed Bridge Bridge Greece

9 Cable-Stayed Bridges Cable-stayed bridges may appear to be similar to suspension bridges but in fact they are quite different in principle and in their construction.

Cable stayed bridge and suspension bridge

. This curtails the range of applicability of this kind of bridge for daily use. Fan type which are the most efficient and Harp or parallel type which allow more space for the fixings. Cable-stayed bridges are a popular choice as they offer all the advantages of a suspension bridge but at a lesser cost for spans of 500 to 2800 feet 152 to 853 meters.

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. Johns River in Jacksonville Florida and its main span is 390 metres 1300 feet with side spans of 200 metres 660 feet.

There are two major classes of cable- stayed bridges. In general a cable stayed bridge is less efficient in carrying dead load than a suspension bridge but is more efficient in carrying live load. Compare this with the suspension bridges that have to be no less than 2000 meters long for a start.

A multiple-tower cable-stayed bridge may appear similar to a suspension bridge but in fact is very different in principle and in the method of construction. This can be problematic should deck replacement be necessary. The Dames Point Bridge 1987 designed by Howard Needles in consultation with Ulrich Finsterwalder was the longest cable-stayed bridge in the United States until the opening of the Arthur Ravenel Bridge in South Carolina in 2005.

There have been some problems with cable excitation. The principal difference between the suspension bridge and the cable stated bridge is the fact that suspension bridge was constructed by the ancient communities using rope and bamboo. Advantages of Cable-stayed bridge.

Fires on the bridge can cause structural degradation in members which can pose a severe danger to the bridge. The example bridge is a long-span cable-stayed bridge of a 605 m central span length with steel box girder and reinforced concrete towers under construction in China. 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.

These types of cable structures can offer an elegant and economic bridge alternative. Perhaps the most significant downside of this bridge is that it has a short maximum length of around 1000 meters. 27 Full PDFs related to this paper.

The first example of Cable Stayed Bridge merges the features of both suspension bridge and cable stayed bridge like Brooklyn Bridge. A cable-stayed bridge has one or more towers from which cables support the bridge deck. A short summary of this paper.

Download Full PDF Package. This is in contrast to the modern suspension bridge where the cables supporting the deck are suspended vertically from the main cable anchored at both ends of the bridge and running between the towers. Cons of Cable-Stayed Bridges.

Cable structures are used extensively in bridge engineering including stayed cables of cable-stayed bridges main cable and suspenders of suspension bridges and hangers of arch bridges. The Dames Point Bridge crosses the St. The principles of cables and towers are at each end with strong plates and the bridge is found in ancient bridge works.

ROTEC GmbH carries out various inspections on cable structures such as cable-stayed bridges and suspension bridges. In the suspension bridge a large cable hangs between two towers and is fastened at each end to anchorages in the ground or to a massive structure. They require less steel cable are faster to build and incorporate more precast concrete sections.

The most economical span length for a cable stayed bridge is 100350 m though some designers have extended this range to as much as 800 m. A cable-stayed bridge offers a design that is similar to a suspended bridge It will have towers that help to support the structure while the deck is held in place by cables. In addition to the necessary know-how and expertise we have specially developed testing equipment for testing rope bridges.

The difference in the design is that the cables hold the deck by connecting it directly to the support pillars instead of using suspending wires or cables to stabilize the span.

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