The Design of Modern Steel Bridges - TEDI

Chapter 1
Types and History of Steel Bridges
1.1 Bridge types
There are five basic types of steel bridges:
(1) Girder bridges – flexure or bending between vertical supports is the main
structural action in this type. They may be further sub-divided into simple
spans, continuous spans and suspended-and-cantilevered spans as illustrated
in Fig. 1.1.
(2) Rigid frame bridges – in this type the longitudinal girders are made
structurally continuous with the vertical or inclined supporting members
Arch bridges Girder bridges
Cable-stayed bridges
Suspension bridge
Figure 1.1 Different types of bridges.
Rigid frame bridges
Continuous spans
Discontinuous spans
Suspended-and-cantilever spans
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