Page 22 - Design of Reinforced Masonry Structures

NOTATION

The following notation has been used in this book. Much of this notation is in conformance
with IBC 2009, Chap. 21, Sec. 2102.2, and MSJC-08, Chap. 1, Sec. 1.5.
2
2
A b = cross-sectional area of anchor bolt, in. (mm )
2
2
A e = effective cross-sectional area of masonry, in. (mm )
2
2
A g = gross cross-sectional area of masonry, in. (mm )
2
2
A n = net cross-sectional area of masonry, in. (mm )
A p = projected area on the masonry surface of a right circular cone for anchor bolt
2
2
allowable shear and tension calculations, in. (mm )
2
2
A = area of prestressing steel, in. (mm )
ps
A = projected area on masonry surface of right circular cone for calculating tensile
pt
2
2
breakout capacity of anchor bolts, in. (mm )
A = projected area on masonry surface of one-half of a right circular cone for calculat-
pv
2
2
ing tensile breakout capacity of anchor bolts, in. (mm )
2
2
A = effective cross-sectional area of reinforcement, in. (mm )
s
A′ = effective cross-sectional area of compression reinforcement in a flexural member,
s
2
2
in. (mm )
A = area of steel required for shear reinforcement perpendicular to the longitudinal
v
2
2
reinforcement, in. (mm )
2
2
A = bearing area, in. (mm )
1
2
2
A = effective bearing area, in (mm )
2
A = total area of laterally tied longitudinal reinforcing steel in a reinforced masonry
st
2
2
column or pilaster, in. (mm )
a = depth of an equivalent compression zone (rectangular stress block) at nominal
strength, in. (mm)
B a = allowable axial force on an anchor bolt, lb (N)
B ab = allowable axial force on an anchor bolt when governed by masonry breakout,
lb (N)

B an = nominal axial strength of an anchor bolt, lb (N)
B anb = nominal axial force on an anchor bolt when governed by masonry breakout, lb
(N)
B anp = nominal axial force on an anchor bolt when governed by anchor pullout, lb (N)
B ans = nominal axial force on an anchor bolt when governed by steel yielding, lb (N)
B ap = allowable axial force on an anchor bolt when governed by anchor pullout,
lb (N)
B as = allowable axial force on an anchor bolt when governed by steel yielding, lb (N)
B v = allowable shear force on an anchor bolt, lb (N)
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