Journal of the Association of Engineering Societies (1881)
Association of Engineering Societies (U.S.) · New York, [etc.] Board of Managers · leaf 591
STRAINS IN PORTAL OF THROUGH BRIDGES. 515 =/ i H ^ by lever A C and H ( \ h" + 1 ) by strut C f\ X sec. 9 = H — sec. 0. hi Strain on end post A C = strain as member of truss + vertical com- ponent of strain on C e( viz: -ff-7 ) + transverse strain which is maximum at B. Case 1 (6). Let fig. 2… … lateral forces, viz: A (which is £ iT), and -B and C which are as yet undetermined. Let dc and dB be the lateral deflections from A X, the original direction of the post. Then according to the elastic relations dc - dB = JL ( q ( ^ + v *, ) i7 7it 7u2 Now the lateral forces distort the original…
Engineering
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