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a[mm]/l - Memorial University of Newfoundland DAI
a[mm]/l - Memorial University of Newfoundland DAI
a[mm]/l - Memorial University of Newfoundland DAI
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The Cornmlrtee reco<strong>mm</strong>ended that the following deslgn equntlon for calculattng ulrtmae<br />
shear loud.<br />
V,, = v,, b. d<br />
(5.4)<br />
The cnttcnl sectson shall k n rectlan perpendscular lo the plane <strong>of</strong> the plate and located<br />
ro that tu penmeter. b,. tr u mnnnmum. But. the sccson need not approach closer lhdn<br />
dl2 to Ihs penmeler <strong>of</strong> the concentnted load. Thereiore. b, = n (c + El. where c Is the<br />
dlametcr <strong>of</strong> loaded arw.<br />
The Bntlrh Codes. 0s-8110 (19851. and code <strong>of</strong> pracuce for structural urc <strong>of</strong><br />
concrele. CP-I I0 (1972). rrco<strong>mm</strong>endsd the followtng equallon for cnlsulaune. punchmg<br />
V, = Ka K,,=(?.69d)~C + 7.85d) (5 5)<br />
where. V, = ult!mate shear force (N)<br />
K,<br />
K,<br />
f,.<br />
= 0.13 for normal concrete 0.105 fo~ hghrwefghr concrete<br />
= I I5 [4n(column arcall lcolumn pnmeler)' 1"'<br />
= cube smgth <strong>of</strong> concrele IMPa)<br />
d = effective dcph <strong>of</strong> the slab (<strong>mm</strong>)<br />
ZC = penmeter <strong>of</strong> the column (<strong>mm</strong>)<br />
The rhear p<strong>mm</strong>elcr for a rectangle column 1s located a distance 1.25 d out f<strong>mm</strong> the<br />
column. for a clrfuiar column a located 1.25 d out f<strong>mm</strong> the column. Aeeordtng lo the
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