Bridges can be classified as per various types depending upon the following factors
Classification as per material used for construction
Under this category, bridges may be classified as
reinforced cement concrete bridges
pre-stressed concrete bridges
Nature of superstructure action
Bridges may be classified under this category as per follows:
Portal frame bridge
They are ideally suited for railway bridges. A truss is a structure made up of steel struts.
Balanced cantilever bridges
These bridges have decks divided into several suspended parts, simply supported or cantilever. These types of bridges can be designed as determinate structures.
This type of bridge is ideally suited for a very long span. The deck is suspended with cables in the suspension bridge. These cables are made from very high strength material.
In the past few decades, cable-stayed bridges become popular over suspension bridges due to lower cost. They are aesthetically superior and also costs lower than suspension bridges for a long span and very long span.
As per alignment
According to the location of the bridge floor
Bridges could be classified as follows.
Classification based on the purpose
As per purpose bridges are of following types
Position of high flood level
Under this category, bridges could be divided into the following categories
These types of bridges got submerged during the high flood level and become non-usable. During normal days this type of bridges are usable for vehicles.
Classification according to span length
Under this category, bridges could be classified as
Long span bridges
Classification as per Degree of redundancy
Determinate beam bridges
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