Civil Engineering Reference
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i g u r e
3.37 Net diaphragm shears.
Determination of diaphragm net shears (see Fig. 3.37):
Net shears between grid lines 1 and 2
(from basic shear diagram):
Location (Grid Line)
Net Shear
1
v
=+334 plf
2
v
=+111 plf
Net shears between grid lines 2 and 3
Location (Grid Line)
Net Shear
2 (below C)
v
net
=+ +
80
(
426 7
. )
= +
506 7
.
plf
2 (above C)
v
net
=+ -
80
(
165 9 59
. )
= -
.
plf
3 (below C)
v
net
=+ +
20
(
426 7
. )
= +
446 7
.
plf
3 (above C)
v
net
=+ -
20
(
165 9
. )
= -
145 9
.
plf
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