Van Nostrand's eclectic engineering magazine (1869)
[New York : D. Van Nostrand] · leaf 484
Put BC=l2. Fig. 7. Fig. 8. AC=ll9 AD=x, DC=A. Upper Chord 8,200 9,500 W=weight of 1 cu. in. of tie in lbs. 14,000 Braces and Posts. . . 10,500 Lower Chord 7,700 6,800 W' = weight of 1 cu. in. of post in lbs. 5,800 7,300 Ties C — cost per lb. of tie in cents. 35,700 34,100 C'=cost per lb. of post in… … Fig. 8, as 31 feet, the diameters of com- Strain on CB=p|; Cost CB=?| I2l2wc. pression members being the same as for Fig. 7, we find the saving on 2 trusses, 8,000 lbs. Strain on CA=Py; Cost CA=tq112J1w/c' 46. In this Magazine for January, Total cost of tie CB and post CA=B 1877, is an article by…
Engineering
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