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Loads (NBC 2010)
Snow Loads
Roof Snow Load
Snow Drift Load (Step) - (Fig G-5)
Snow Drift Load (Obstruction) - (Fig G-8)
Wind
Fig I-7
Fig I-8
Fig I-23
Seismic
building
component
Loads (NBC 2005)
Snow Loads
Roof Snow Load
Snow Drift Load (Step) - (Fig G-5)
Snow Drift Load (Obstruction) - (Fig G-8)
Wind
Fig I-7
Fig I-8
Fig I-23
Seismic
building
component
Structural Materials
Steel
Section
Column - Axial Resistance
Web Cripping / Web Stiffener
Timber
Section strength
Bolted Connection
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Bending
Shear
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Section
Column - Axial Resistance
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Contact
Steel Column - Axial compression
version 0.0.3
Project:
Designer:
Member Dimensions
Section Designation
Metric
Imperial
Shape:
W - Wide Flange
HSS - Hollow Structural Section - Square - CSA G40.20/21
HSS - Hollow Structural Section - Rectangular - CSA G40.20/21
HSS - Hollow Structural Section - Round - CSA G40.20/21
HSS - Hollow Structural Section - Square - ASTM A500
HSS - Hollow Structural Section - Rectangular - ASTM A500
HSS - Hollow Structural Section - Round - ASTM A500
Sections from database
Effective Length
K
x
L
x
:
mm (strong axis)
K
y
L
y
:
mm (weak axis)
Optimum Section
Factored Axial Load
C
f
kN
Leave C
f
empty for faster results.
(Based on shape and lengths specified above.)
Thinking...
Properties
Section: W1100x499
Shape: Wide-flange
Imperial designation: W44x335
Properties:
Mass = 499 kg/m
b = 405 mm
r
x
= 452 mm
Fy = 345 MPa
A = 63400 mm
2
d = 1118 mm
r
y
= 88.8 mm
E =200000 MPa
[cl: 13.3.1]
Axial Resistance - Flexural Buckling
&Phi = 0.9
n = 1.34
&lambda = KL/r*(F
y
/(&pi
2
E))
0.5
&lambda
x
= 0.02925
&lambda
y
= 0.14888
C
r
= &Phi*A*F
y
*(1+&lambda
2n
)
-1/2
C
rx
= 19684.56kN
C
ry
= 19597kN
C
r
= 19597kN
Optimum Section - (Minimized Mass)
Given Cf = 100 kN
Optimal Section: W150x13
Shape: Wide-flange
Imperial designation: W6x8.5
Properties:
Mass = 13 kg/m
b = 100 mm
r
x
= 61.7 mm
Fy = 345 MPa
A = 1610 mm
2
d = 148 mm
r
y
= 22.5 mm
E =200000 MPa
n =1.34 MPa
C
rx
= 493.98kN
C
ry
= 425.64kN
C
r
= 426kN
