Cyclopedia of architecture, carpentry, and building : a general reference work ... (1907)
American School of Correspondence · Chicago : American Technical Society · leaf 244
same result. 4. It is required to determine the stress in the member 12of the truss represented in Fig. 2(\ due to the loads shown. Passing a section cutting members 12 and 14, and consider-ing the left part, we get Fig. 42. To determine Fj we may writea moment equation preferal)ly with origin at… … Fi. 43. the vertical components of all the forces on the left part equal tozero, thus: F, sin 20 34 + 4,000 = 0; or Fi - 4,000 4,000 8,948, sin 20 34 0.447 agreeing with the first result. EXAMPLES FOR PRACTICE. 1. Determine by the method of sections the stresses in mem-bers 23, 25, and 45 of the…
Architecture · Building · Carpentry
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