The theory and practice of modern framed structures : designed for the use of schools, and for engineers in professional practice (1897)
Johnson, J. B. (John Butler), 1850-1902, Bryan, C. W. (Charles Walter), 1863-1927, Turneaure, Frederick Eugene, 1886- · New York : J. Wiley & Sons · leaf 56
ROOF-TRUSSES. 50 Wind pressure according to the table of Art. 52. Assuming an average panel length of the upper chord of 9.3 ft., the total dead load perpanel l\ — 20 X 9.3 X 16 + J^V-^ = 2976 + 743 = 3719- Call it 3700 lbs. The snow load per panel = = 20X 8.9 X 16 = 2848. Call it 2850 lbs. The… … Fig. 70A load are found by multiplying the dead load stresses by ffft- These dead and snow loadstresses are marked D and S, respectively, in Fig. 69 and are given in thousands of pounds. Fig. 70 (b) is the full diagram for snow load on the left side only. The correspondingstresses are marked in…
