. The theory of the flexure and strength of rectangular flat plates applied to reinforced concrete floor slabs . Fig. 15. Mushroom Slab, Load Fig. 16. Mushroom Slab, Load 9. COMPUTATION OF MUSHROOM TEST 87 The accompanying Table 3, exhibits the loads per square footof each of the subsidiary areas shown in the diagram as also thetotal loads on each of those areas. The view of Dec. 3, Fig. 14,shows load 4, and that of Dec. 13, Fig. 15, load 7, while that ofDec. 16, Fig. 16, shows load 9. Elongations of steel were measured by Berry extensometersin two of the side belts and in one of the diago
. The theory of the flexure and strength of rectangular flat plates applied to reinforced concrete floor slabs . Fig. 15. Mushroom Slab, Load Fig. 16. Mushroom Slab, Load 9. COMPUTATION OF MUSHROOM TEST 87 The accompanying Table 3, exhibits the loads per square footof each of the subsidiary areas shown in the diagram as also thetotal loads on each of those areas. The view of Dec. 3, Fig. 14,shows load 4, and that of Dec. 13, Fig. 15, load 7, while that ofDec. 16, Fig. 16, shows load 9. Elongations of steel were measured by Berry extensometersin two of the side belts and in one of the diagonal belts until theyield point of the steel was reached at load No. 8. Deflectionswere also measured. In Table 4, these will be considered so far asthey relate to the middle points of the belts. Loads 8, 9, 10, areof great interest as exhibiting the behavior of the slab under ex-cessive loads, showing, as they do, yielding and large permanentdeformation without dangerous collapse. By (52) the uniformly distributed load per square foot ofpanel area when the stress in the diagonal belt is /g is found for asquare panel from the expression 256
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