erection. Fabrication involves the processing of raw
materials to form the finished members of the structure.
Erection includes all rigging, hoisting, or lifting of
members to their proper places in the structure and
making the finished connections between members.
A wide variety of structures are erected using
structural steel. Basically, they can be listed as
buildings, such as PEBs, bridges, and towers; most other
structures are modifications of these three.
Three basic types of steel construction are used
today. These may be designated as wall-bearing
construction, skeleton construction, and long-span
In wall-bearing construction, exterior and interior
masonry walls are used to support structural members,
such as steel beams and joists, which carry the floors
and roof. Note that while this section of your TRAMAN
covers steel structures, wall-bearing construction is
applicable to nonsteel structures as well. Wall-bearing
construction is one of the oldest and most common
methods in use. Although modem developments in
reinforced concrete masonry make the use of this
method feasible for high-rise structures, wall-bearing
construction is normally restricted to relatively low
structures, such as residences and light industrial
A tall building with a steel frame, as shown in figure
8-49, is an example of skeleton construction. In this
Figure 8-49.Structural steel skeleton construction.