Van Nostrand's eclectic engineering magazine (1869)
[New York : D. Van Nostrand] · leaf 319
A column (S) should = sum of column (s). to the centre of gravity of the whole part In the same way, column (M) contains considered. This method will thus give us the continued sum of column (m), and the weights Px P2 (Fig- 3), as well as hence its last number should equal the the horizontal… … pass outside of the middle third of the example of a railroad bridge (Fig. 9) of arch ring. By measurement on the draw- 50 ft. span and 10 ft. rise, the arch being ing (Fig. 9) we find a=25.6— 16=9.6, b a segment cf a circle ; voussoirs 2.5 deep; = 11.2. We have also P=235.9 cubic feet the spandrel…
Engineering
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