The American house carpenter. A treatise on the art of building. Comprising styles of architecture, strength of materials, and the theory and practice of the construction of floors, framed girders, roof trusses, rolled-iron beams, tubular-iron girders, cast-iron girders, stairs, doors, windows, mouldings, and cornices; together with a compend of mathematics. A manual for the practical use of architects, carpenters, stair-builders, and others (1880)
Hatfield, R. G. (Robert Griffith), 1815-1879, Hatfield, O. P., ed · New York, J. Wiley & sons · leaf 198
tion, the bottom flangeis made to contain in area four times asmuch as the top flange. The strengthwill be in proportion to the area of thebottom flange, and to the height ordepth of the girder at middle. Hence,to obtain the greater strength from agiven amount of material, it is requisiteto make… … l62 CONSTRUCTION. top flange, and bottom flange—may be made in proportionas 5, 6, and 8. For a weight at middle, the form of the web should bethat of a triangle; the top flange forming two straight linesdeclining from the centre each way to the bottom flange atthe ends, like the rafters of a roof…
Carpentry · Architecture · Building
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
