CALCULATORS
CALC
REFERENCE
REF
CATALOGUES
CAT
ABOUT
ABOUT
SECTION
BEAM
BEAM-CHK
SDOF
RING
JOINT
STRESS
FATIGUE
WAVE
MANUAL
SIGN CONVENTIONS
CONSISTENT UNITS
DYNAMIC AMPLIFICATION
SDOF FACTORS
EUROPEAN IPE
EUROPEAN IPN
EUROPEAN HE
EUROPEAN HL
EUROPEAN HD
EUROPEAN HP
EUROPEAN UPE
EUROPEAN UPN
BRITISH UB
BRITISH RSJ
BRITISH UC
BRITISH UBP
BRITISH PFC
AMERICAN W
WELDED PG
WELDED PIPE
ABOUT
CONTACT
Single Degree of Freedom Calculator
DESCRIPTION
UNITS
Length
m
cm
mm
in
ft
Force
N
kN
MN
lbf
SECTION PROFILE
Table
USER DEFINED
AMERICAN W
BRITISH UB
BRITISH UC
EUROPEAN HE
EUROPEAN IPE
WELDED PG
WELDED PIPE
Section
I
BOX
PIPE
RECTANGULAR
CIRCULAR
CHANNEL
ANGLE
TEE
U
ASYM I
ASYM BOX
ASYM CHANNEL
ASYM U
h
b
t
f
t
w
r
h
b
1
t
f1
b
2
t
f2
t
w
h
b
t
f
t
w
h
b
t
f1
t
w1
t
f2
t
w2
d
t
h
b
d
(
h
b
t
f
t
w
h
b
t
f1
t
w
t
f2
h
b
t
f
t
w
h
b
t
f
t
w
h
b
t
f
t
w
h
b
t
f
t
w1
t
w2
MATERIAL
σ
y
Yield stress
for the material
E
Elastic modulus
for the material
ρ
Density
for the material
ν
Poisson's ratio
for the material
(Acceptable values are -1 ≤ ν ≤ 0.5)
-
GEOMETRY
Length
PIN
FIX
FREE
PIN
FIX
FREE
MASS
M
Enter the
Total Mass
Type
DISTRIBUTED
CONCENTRATED
LOAD HISTORY
0,0 0.1,1800 0.3,-1800 0.4,0
Enter load time history, 1 point per line.
Syntax:
TIME
*
, MAGNITUDE
*
* TIME: Must be monotonically increasing
[s]
* MAGNITUDE: Positive is upward
Type
UDL
1 POINT
2 POINT
GENERAL
g
Enter the
Gravitational Acceleration
(Value should be negative i.e. downwards, for horizontally spanning elements and 0 for vertically spanning elements e.g. walls)
Damping
Enter the
Damping Ratio
(Acceptable values are 0 ≤ ζ ≤ 1)
-
