An Essay on the Strength and Stress of Timber: Founded Upon Experiments Performed at the Royal Military Academy, on Specimens Selected from the Royal Arsenal, and His Majesty's Dock-yard, Woolwich : Preceded by an Historical Review of Former Theories and Experiments ; with Numerous Tables and Plates : Also an Appendix, on the Strength of Iron, and Other Materials
J. Taylor, 1826 - 306 pages
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12 inches angle beam fixed Berkeley Berkeley Breadth in inches Breaking weight broke CALIFORNIA LIBRARY Cast Iron centre of gravity centre of tension column compression curve denote Depth in inches diameter dimensions direct cohesion distance Ditto Dock-yard elasticity English oak equal experiments fibres Fir Battens former Formula fracture Galileo horizontal inch square iron James Bernoulli latter Leibnitz Length in inches lever loaded Mean Results Mean Weight middle nearly neutral axis observed Octavo pieces Pitch Pine Plates preceding principles props quantity Quarto ratio reduced to Sp resistance Riga fir shew shewn Specific Gravity specimen square inch supported supposed TABLE tabular value theory thickness THOMAS TREDGOLD timber tion tons triangular beam ultimate deflection UNIVERSITY OF CALIFORNIA upwards vertical vertical strength wall Weight in lbs Whence wire wood
Page 157 - ... 1. When the beam is fixed at one end, and loaded at the other, IW cos A = a d3 S, or — — .^ - = S, a constant quantity.