. The theory of the flexure and strength of rectangular flat plates applied to reinforced concrete floor slabs . mushroom head, which thus providesresistance to tension, and ensures effective cantilever and slab action. 4th. Concrete is thus stressed in compression at the bottomof the slab for a wide zone around the columns. 5th. Under a load equal to the breaking load of the Norcrossslab, amounting to thirty-eight tons, the mushroom slab deflectedat first only l/8, but after exposure to rain and great changes oftemperature for seven days had somewhat softened the concretethe defi(iction incre
. The theory of the flexure and strength of rectangular flat plates applied to reinforced concrete floor slabs . mushroom head, which thus providesresistance to tension, and ensures effective cantilever and slab action. 4th. Concrete is thus stressed in compression at the bottomof the slab for a wide zone around the columns. 5th. Under a load equal to the breaking load of the Norcrossslab, amounting to thirty-eight tons, the mushroom slab deflectedat first only l/8, but after exposure to rain and great changes oftemperature for seven days had somewhat softened the concretethe defi(iction increased to l/4. 6th. The first crack appeared underneath the cnlge of theslab across the side belt under load No. 5, of fifty-six tons, with acenter deflection of and an average deflection at (he iniddh^of side belts of 7th. No cracks appeared on th(^ u])per side of slab nt tlu^edg(», nor wvrv any s(H^n els(nvliere, until h)ad No. 7, of 90 tons wasapphed, wlien the yield ])()int of tlie stec^l was (^vidtMitly nc^arly or(iuit(^ reached, giving a ((^nfer dc-fUMtion of 1 2. 92 FAILURE OF MUSHROOM SLAB. Fig. 18. Failure of ^Mushroom Slab.
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Keywords: ., bookcentury1900, bookdecade1910, bookidtheoryofflex, bookyear1913
