A treatise on architecture and building construction (1899)
International Correspondence Schools · Scranton, The Colliery engineer co. · leaf 475
upon to sheath the beam in wood to protect it, andunless iron brackets are provided to seat the floorbeams on,he will also be required to provide a wooden ledge, as shownat e, Fig. 96, on which the beams are set and secured. 339. The methods of sheathing iron girders with woodand of securing… … Fig. 96. 9 CARPENTRY. 141 heat of a fierce fire as long as a wooden girder of equalstrength, such as is shown at b^ in Fig. 90. The iron beamabsorbs the heat and soon becomes so hot as to bend in themiddle, thereby throwing walls and columns out of plumb,and finally causing a collapse of that…
Architecture · Building
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