Solutions for certain rectangular slabs continuous over flexible ...

SOLUTIONS FOR CERTAIN RECTANGULAR SLABS
represents the curves obtained from (189) for b/a = 0.2 and for
4.0 > H > 1.0 as may be seen from the plotted results shown in
Fig. 35.
The moments in the slab and beams may be obtained from the
results of Sections 25 and 26, provided that the loads are assumed
to be as shown in Fig. 34 (b) with Q given by Equation (189).
34. Rectangular Slab Having Edge and Center Stringers and a Continuous
Diaphragm on the Lateral Center Line; Concentrated Load at
the Center of an Edge Stringer.-The slab with the actual loading is
shown in Fig. 36 (a) and the slab without the diaphragm, but with
(a)-Structure With Ditaphragmn
(b)-Equizal/enf Sftructure
-- 4--*----- b J
(c) -D/aphragm
FIG. 36
an equivalent loading which includes the effect of the diaphragm, is
shown in Fig. 36 (b). Under the same assumptions as are stated
\in Section 33, one may combine previously given solutions to obtain
the ratio of the load carried over by the diaphragm, 2Q, to the applied
load, P. One finds
2Q -k (f 6 - 2/ 2)
P
4
EJ b 3 k(191)
6 E1 -a (2f1 + f6- 4f2)
6 E33 a" s..5.. n
where the notation is the same as for Equation (189). Comparison
between Equations (191) and (189) shows that they are identical
except for one term in the numerator.
Figure 37 shows the ratio 2Q/P computed from (191) for b/a = 0.2,