| B |
= |
building width normal to oncoming wind |
| CD |
= |
drag force coefficient |
| CM |
= |
non-dimensional moment coefficient |
| D |
= |
building depth |
| f |
= |
frequency |
| f1 |
= |
first mode natural frequency |
| g |
= |
peak factor |
| gB |
= |
background peak factor |
| gR |
= |
resonant peak factor |
| H |
= |
building height |
| H1(f) |
= |
first mode structural transfer function |
| I |
= |
mass moment of inertia |
| m |
= |
mass |
 |
= |
expected extreme value of moment or torque response |
 |
= |
mean of moment or torque response |
 |
= |
reference moment or torque |
 |
= |
background base moment or base torque |
 |
= |
resonant base moment or base torque response |
 |
= |
mean wind load |
 |
= |
resonant component of equivalent static wind loading |
 |
= |
resultant wind-induced response |
 |
= |
mean wind-induced response component |
 |
= |
peak background wind-induced response component |
 |
= |
peak resonant wind-induced response component |
| SM(f) |
= |
power spectral density of fluctuating base moment or torque response |
| SM(f) |
= |
power spectral density of aerodynamic base moment or torque |
| T |
= |
observation time |
 |
= |
mean wind velocity evaluated at building height |
 |
= |
peak acceleration |
| a |
= |
exponent of mean wind velocity profile |
| g |
= |
radius of gyration |
| j1 |
= |
fundamental mode shape in direction of motion |
| r |
= |
air density |
| sM |
= |
root mean square of fluctuating base moment or base torque response |
| sM |
= |
root mean square of aerodynamic moment |
| z1 |
= |
first mode critical damping ratio |
|
|
| Subscripts |
|
| B |
= |
background component |
| D |
= |
alongwind direction |
| L |
= |
acrosswind direction |
| R |
= |
resonant component |
| T |
= |
torsional direction |
|
|
|
Notation