Types Of Bridges As Per Different Criteria

The main purpose of any bridge is to reduce time and distance of journey between two places. There are many different types of bridges. Some bridges also became icon of the city. Like, the Golden Gate Bridge located in San Francisco is a marvelous engineering beauty.

Cable Stayed Bridges

These are the most aesthetic choice for long span bridges. Cable stayed bridges became popular in later half of the 20th Century.
Cable Stayed Bridges comprise one or more tower known as pylon with attached cables. Here cables are known as stays. With the configuration of cables, this type of bridges may be known as harp type bridge, semi harp type bridge or fan type bridge.
With advancements in orthotropic deck sections design, these bridges gain wide attention of structure designers. Though as number of cables increases in cable stayed bridge, the redundancy of the structure increases and it becomes difficult to analyze the bridge structure. CSi Bridge are Midas Civil are most popular software package for analyses and design of cable stayed bridges.

Suspension Bridges

They are most suited for long span. As name suggests, in suspension bridges the deck is supported on suspension cables. Suspension bridges were choice of structure designers in early 20th century.
They are very difficult to analyze and design. Suspension Bridges are suitable for long spans. At present suspension bridge construction become rare as the cost of erection has increased tremendously.

Akashi Kaikyo Bridge Japan. — Akashi Kaikyo Bridge, Japan

Arch Bridges

These are aesthetic in look. Arch is made from structural steel. To construct an arch bridge, strong abutments are necessity to support.
Notable Arch Bridges

The Sydney Harbor Bridge (Australia) – This one is the 9th longest arch bridge located in Sydney, Australia.
Bayonne Bridge – This beautiful arch bridge connects Bayonne, New Jersey to New York.

Beam Bridges

These one are the simplest type of bridges used most commonly in congested cross roads of urban area.

Truss Bridges

The load bearing super structure of russ bridge is made up with truss and with steel as being most commonly used material. There are different types of trusses used like Baltimore truss, Allan truss, Bowstring truss, Pratt truss etc.

External Resources For Bridge Engineers

Indian Institute Of Bridge Engineers

Bridge Engineers Association – America

FAQs

Which is the longest Cable Stayed Bridge in the world?

Russky Bridge located in Vladivostok, Russia is the longest Cable Stayed Bridge in the world having span of 1104 meters.

Which is the longest suspension bridge in the world?

Akashi Kaikyo bridge in Japan is the world’s longest suspension bridge having span of 1991 meters.