Adams, Henry · London, New York [etc.] Longmans, Green, and Co. · leaf 145
every case, but approaching the value of the solid web as they becomemoie numerous. In the case of the arched rib this relation does notseem to hold good, as the flange stresses are, on the whole, shown to begreater in the braced rib. EXERCISES ON LEGTUBB XVIII Q. 63. Pig. 415 shows cast liron roof… … EXAMPLES FOR PRACTICE 131 four symmetrically placed porlins and a stmt from the ridge. Each rib is of Isection, 7 in. by 4 in. by j in. thick, with pivot at each end, fixed to 14 In. by 9 in.floor beam. The load from the purlins may be taken as 3 tons vertical on thewindward side and l.J tons on…
Building · Structural analysis (Engineering)
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