Types of bridges

Below is the list of 5 main types of bridges based on support mechanism:

1. Girder bridges
2. Arch bridges
3. Cable-stayed bridges
4. Rigid Frame Bridges
5. Truss bridges

1. Girder bridges:

It is the most common and most basic bridge type. In its simplest form, a log across a creek is an example of a girder bridge; the two most common girders are I-beam girders and box-girders used in steel girder bridges. Examining the cross section of the I-Beam speaks for its so name. 

2. Arch bridges:

Arch bridges pose a classic architecture and the oldest after the girder bridges. Unlike simple girder bridges, arches are well suited to the use of stone. Since the arch doesn’t require piers in the center so arches are good choices for crossing valleys and rivers

3. Cable stayed bridges:

Another type of bridge is the cable stayed bridge. A typical cable stayed bridge is a continuous girder with one or more towers erected above piers in the middle of the span. From these towers,

4. Rigid frame bridges:

Rigid frame bridges are sometimes also known as Rahmen bridges. In a standard girder bridge type, the girder and the piers are separate structures. However, a rigid frame bridge is one in which the piers and girder are one solid structure.

5. Truss bridges:

Of all the types of bridges, truss bridges are most common, usually in steel bridges. Trusses are comprised of many small beams that together can support a large amount of weight and span great distances. In most cases the design, fabrication, and erection of trusses is relatively simple. However, once assembled trusses take up a greater amount of space and, in more complex structures, can serve as a distraction to drivers. Like the girder bridges, there are both simple and continuous trusses...