ABSTRACT

When compared to concrete framed structures, a steel frame building would appear to have many advantages. It is lighter, stronger and facilitates a speedier erection. In addition, the comparatively light weight of a steel-framed structure allows for savings in foundation costs. However, there is a problem with steel in that although it is not combustible, its performance in the event of a fire is poor and it is likely to buckle and fail. The upshot of this is that where a steel-framed structure is used, some form of fire protection will need to be applied or used to encase the steel members. This may include a concrete or masonry surround, sprayed applications of cement and vermiculite, plasterboard casing or specialist paint applications. Steel members are manufactured in standard shapes to suit different loading requirements (universal columns, universal beams, channels, angles, etc.), and each of these standard shapes is manufactured in a range of standard sizes.