Table of Contents
How are cable-stayed bridges constructed?
Construction of cable-stayed bridges usually follows the cantilever method, so their construction begins with the sinking of caissons and the erection of towers and anchorages. After the tower is built, one cable and a section of the deck are constructed in each direction.
When was the cable-stayed bridge built?
Cable-stayed bridges were being designed and constructed by the late 16th century, and the form found wide use in the late 19th century. Early examples, including the Brooklyn Bridge, often combined features from both the cable-stayed and suspension designs.
What is the average span of a cable-stayed bridge?
110 to 480 meters
The typical span length of cable stayed bridges range from 110 to 480 meters. The longest cable stayed bridge in the world is presently the Tatara Bridge with a main span of 890 m. The articulation of the structure allows for a shallow superstructure with open and uncluttered views from the bridge.
Are cable-stayed bridges cheap?
It is an affordable design to build. Most cable stayed bridge designs require fewer raw materials. They require fewer labor hours to complete. That combination means this bridge design option can be up to 30% cheaper than other bridge designs.
Are cable-stayed bridges easy to build?
Cable-stayed bridges take less time to complete than other options. One of the most significant advantages to consider when evaluating a cable-stayed bridge is the amount of time required to complete the construction. This option does not require the same levels of anchoring that you will find in alternative designs.
Who built the first cable-stayed bridge?
Leonhardt, working independently, built the first cable stayed bridges at Stromsund, Sweden (1955) with a 183 metre span and Dusseldorf, Germany (1957) with a 260 metre span. This type of bridge is seen as aesthetically attractive, economic and easier to construct.
Who built the world’s longest cable-stayed bridge?
Edong Bridge, China The bridge’s construction required approximately 254,011t of steel. China Communications Construction Company’s (CCCC) subsidiaries CCCC Second Highway Engineering and CCCC Second Harbor Engineering built the bridge.
How tall should a cable-stayed bridge be?
For a suspension bridge, the towers should have a height of about 0.1 of the span, while for a cable-stayed bridge, the towers’ height should be about 0.2 that of the span.
What is a disadvantage of a cable-stayed bridge?
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 is the world longest cable-stayed bridge?
1. The Sutong Bridge arcs across a 6-kilometer-wide stretch of the mighty Yangtze River 50 miles upstream from Shanghai. Measuring 8.2 km overall, its main span is the current world record-holder for a cable-stayed bridge.
What is the widest cable-stayed bridge in the world?
The widest cable-stayed bridge is the Rod El-Farag Axis bridge, measuring 67.3 m (220 ft 9.6 in) wide, and was achieved by The Arab Contractors (Osman Ahmed Osman & Co.) (Egypt) in Cairo, Egypt, inaugurated on 15 May 2019. The bridge was built by 4,000 engineers, technicians and workers.
What are the disadvantages and disadvantages of a cable-stayed bridge?
What materials are cable-stayed bridges made of?
The primary construction materials used in cable-stayed bridges are:
- For decks: reinforced or prestressed concrete, composite concrete-steel, or orthotropic steel decks;
- For deck-girders: beams of prestressed concrete or steel, box girders of prestressed concrete or steel, similar to those in modern suspension bridges;
Which bridge design is the strongest?
truss bridge design
Even though the truss bridge design has been around for literally centuries it is widely regarded as the strongest type of bridge.
Who built the 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 is a cable stayed bridge?
What is a Cable Stayed Bridge? A cable-stayed bridge is a structural system with a continuous girder supported by inclined to stay cables from the towers. From the mechanical point of view, the cable-stayed bridge is a continuous girder bridge supported by elastic supports.
How many spans can a cable-stayed bridge have?
The cable-stayed bridge can be designed as a single-span to expands three spans or multiple spans. However, cable-stayed bridges having either three or two cable status spans are more widely used because the cable stays on the anchor pier and is important for the pylon’s stability.
What are the disadvantages of a cable-stayed bridge?
In a 2-span or 3-span cable-stayed bridge, the loads from the main spans are normally anchored back near the end abutments by stays in the end spans. For more spans, this is not the case and the bridge structure is less stiff overall. This can create difficulties in both the design of the deck and the pylons.
What is the construction process of cable bridge?
Construction of cable-stayed bridges usually follows the cantilever method. After the tower is built, one cable and a section of the deck are constructed in each direction. Each section of the deck is prestressed before continuing. The process is repeated until the deck….