Van Nostrand's eclectic engineering magazine (1869)
[New York : D. Van Nostrand] · leaf 241
rom, and by com- crown, and, combining it with the weight bining this resultant with the weights of of successive portions of the arch, work the successive voussoirs and their respec- the resultant down to skew-back. The tive loads, we can trace the path of the consideration of certain facts in… … Fig. 2. approach to the skew-back, and the last feet, the intrados being the arc of a to the mid section of the crown. circle, struck with a radius of 37.5 feet. This process demonstrates itself, and is Let us suppose the weight of voussoirs moreover merely an application of the and corresponding…
Engineering
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