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 L
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Span length, ft
-
Bay width, ft
Lb
-
Length of bracing between supports, ft
m
-
Unit mass of panel, k-ms2/ft
Number of braced bays
me
-
Equivalent lumped mass, k-ms2/ft or lb-ms2/ft
M
-
The lesser of the moment at the ends of the unbraced segments
Me
-
Total effective mass
Mmx, Mmy -
Moments that can be resisted by the member in the absence
of axial load, ft-kips
Mp
-
Plastic moment capacity, kips-ft
Mpx, Mpy -
Plastic bending capacities about the x- and y-axis
respectively, kips-ft
Mun
-
Negative plastic moment, ft-lb or ft-lb/ft
Mup
-
Positive plastic moment, ft-lb or ft-lb/ft
Mx, My
-
Maximum applied moments about the x- and y-axis respectively,
k-ft
n
-
Number of bays
N
-
Bearing length, in
Ph
-
Reflected blast pressure on front wall, psi
Pv
-
Blast overpressure on roof, psi
P
-
Applied axial compressive load, k
Pex, Pey
-
Euler buckling load in x- and y-axIs respectively, k
Pp
-
Dynamic plastic axial load, k
Pu
-
Ultimate strength of member in compression, k
Py
-
Plastic axial load, kips
qh
-
Peak horizontal load on rigid frame, lb/in
qv
-
Peak vertical load on rigid frame, lb/in
Qu
-
Ultimate support reaction, k
2.08-195
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