The Structural Engineer > Archive > Volume 36 (1958) > Issues > Issue 13 > Design of Steel Frames for Buildings
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Design of Steel Frames for Buildings

STRUCTURAL STEELWORK was little used in this before the year 1900. At that time the general country practice was to construct a load-bearing shell of self supporting brickwork with some steelwork used internally and also externally at first floor level where large shop window openings were required. Floors were mainly of timber, or of filler joist construction for fire resistance. Stanchions were almost invariably made in single storey lengths, with caps and bases, either of steel I-section or of cast iron in which case the section was usually circular. These columns were simply placed one on top of the other with perhaps a few bolts joining them together. Frequently the beams were continuous over the stanchion caps and thus the load from the pillar above had to be transmitted by the web of the beam to the pillar below. Holding down bolts and stanchion splice plates were practically unknown. The resulting structure approximated very closely to what is assumed in the orthodox method of design in general use today. That is, in effect, that the beams rested on simple supports and the stanchions were made up of individual single storey lengths without any attempt at continuity. The stanchions could hardly be described as pin-ended but they were very much nearer to that ideal than those found in a modern structure. Professor J.F. Baker