Mechanics of engineering (solids) : comprising statics and kinetics of solids, and the mechanics of the materials of construction, or strength and elasticity of beams, columns, shafts, arches, etc. : for use in technical schools (1911)
Church, Irving P. (Irving Porter), 1851-1931 · New York : Wiley ; London : Chapman & Hall · leaf 449
Fio. 384. ellipse, a compactly-built masonry backing is carried upbeyond the springing-line to AB about 60° to 45° from thecrown, Fig. 385; so that the portion of arch ring belowAB may be considered as part of the abutment, and thusAB is the virtual springing-line, for graphic treatment. Sometimes,…
Mechanics, Applied · Strength of materials
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