2 Classify them as
temporary or permanent
bridge.
Answers
Answer:
There are various types of bridges classified based on span, materials, types of bridge structures, functions, utility and position etc.
A bridge is structure which allows passage over an obstruction. The obstructions may be river, valley, rail route or road way etc.
Types of Bridges
Bridges are classified into so many types based on different criteria’s. They are explained below.
Types of Bridges based on Type of Super Structure
Arch bridge
Girder bridge
Truss bridge
Suspension bridge
Arch Bridge
Arch bridge is curve shaped bridge, in which horizontal thrust is developed and is restrained by the abutments at each end of the bridge. There are many types of arch bridges are there. In some cases, the arch may be under the deck slab also.
Girder Bridge
In case of Girder Bridge, the deck slab is supported by means of girders. The girder may be of rolled steel girder or plate girder or box girder. Load coming from the deck are taken by girder and transferred them to the piers and abutments.
Truss Bridge
Truss is member consisting connected elements to form triangular units. In case of truss bridge the super structure is provided with trusses. Generally, trusses are made of steel. There are several types of trusses are available.
Suspension Bridge
In case of Suspension bridge, deck slab is suspended with the help of cables and suspenders. These will give good appearance. For long span bridges, this type of suspension is suitable.
Explanation: