Cyclopedia of architecture, carpentry, and building : a general reference work (1912)
American Technical Society · Chicago : American Technical Society · leaf 202
f span. This is necessaryto allow for the ordinary sag of thetimber, so that a level floor may result.Steel Girders. With the useof steel girders new considerationswill arise. If a single beam is set entirely below the floor timbers,it will give a better bearing if the timbers lap and spike to each… … Fig. 179. Hanging of Joists.
Architecture · Building
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