7/28/2019 Propiedades de Estructuras_AISC ASD-1989
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AISC MEMBER DIMENSIONS AND PROPERTIE
W, S, M, HP Shapes C, MC Shapes WT, ST, MT Shapes Single
Angles
Y Y
k1=--- Y Y
k=0.5 tf=0.18 tf=0.65bf=4
y=0.677 x=0.5
x(bar)=0.799 tf=0.28 d=2 t=0.125
d=12 T X d=1 X X
d=3.02 X y=0
tw=0.149 tw=0.716 tw=0.23 b=2
bf=3.25 bf=3.72
M12x10 C15x50 WT3x6 L2x2x1/8
A = 2.95 in.^2 A = 14.70 in.^2 A = 1.78 in.^2 d = 2 in.
d = 12.000 in. d = 15.000 in. d = 3.020 in. b = 2 in.
tw = 0.149 in. tw = 0.716 in. tw = 0.230 in. t = 0.125 in.
bf = 3.250 in. bf = 3.720 in. bf = 4.000 in. k = 0.3750 in.
tf = 0.180 in. tf = 0.650 in. tf = 0.280 in. wt./ft. = 1.67
plf.
T = 11 in. T = 12-1/8 in. k = 0.5300 in. A = 0.49 in.^2
k = 0.5000 in. k = 1.4375 in. d/tw = 13.10 Ix = 0.19 in.^4
k1 = --- in. gage = 2-1/4 in. Ix = 1.32 in.^4 Sx = 0.13
in.^3gage = --- in. x(bar) = 0.799 in. Sx = 0.56 in.^3 rx = 0.620
in.
rt = 0.740 in. eo = 0.583 in. rx = 0.862 in. y = 0.534 in.
d/Af = 20.50 d/Af = 6.21 y = 0.677 in. Iy = 0.19 in.^4
Ix = 61.70 in.^4 Ix = 404.00 in.^4 Iy = 1.50 in.^4 Sy = 0.13
in.^3
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NOMENCLATURE FOR MEMBER PROPERTIES AND DIMENSIONS:
A = Cross-sectional area of member (in.^2)
d = Overall depth of member, parallel to X-axis (in.)
tw = Thickness of web of member (in.)
bf= Width of flange of member (in.)
tf= Thickness of flange of member (in.)T = Distance between
fillets for wide-flange or channel shape (in.) = d-2*k
k = Distance from outer face of flange to web toe of fillet
(in.)
k1 = Distance from web centerline to flange toe of fillet
(in.)
gage = Standard gage (bolt spacing) for member (in.)
rt = Radius of gyration of compression flange plus 1/3 of
compression web area, taken about an axis in plane of web (in.)
d/Af= Ratio of of total depth of member to area of compression
flange of member = d/(bf*tf)
Ix = Moment of inertia of member taken about X-axis (in.^4)
Sx = Elastic section modulus of member taken about X-axis
(in.^3)
rx = Radius of gyration of member taken about X-axis (in.) =
SQRT(Ix/A)
Iy = Moment of inertia of member taken about Y-axis (in.^4)
Sy = Elastic section modulus of member taken about Y-axis
(in.^3)
ry = Radius of gyration of member taken about Y-axis (in.) =
SQRT(Iy/A)
Zx = Plastic section modulus of member taken about X-axis
(in.^3)
Zy = Plastic section modulus of member taken about Y-axis
(in.^3)
J = Torsional constant of member (in.^4)
Cw = Warping constant (in.^6)
a = Torsional property, a = SQRT(E*Cw/G*J)
E = Modulus of elasticity of steel = 29,000 ksi
G = Shear modulus of elasticity of steel = 11,200 ksi
Wno = Normalized warping function at a point at the flange edge
(in.^2)
Sw = Warping statical moment at a point on the cross section
(in.^4)Qf= Statical moment for a point in the flange directly above
the vertical edge of the web (in.^3)
Qw = Statical moment at the mid-depth of the section (in.^3)
x(bar) = Distance from outside face of web of channel shape to
Y-axis (in.)
eo = Horizontal distance from the outer edge of a channel web to
its shear center (in.) = (approx.) t
f*(d-tf)^2*(bf-tw/2)^2/(4*Ix)-tw/2
