Wind Calculation BS 6399

Wind Loading Calculations

Project Client Description

Date

Checked

Revision

-

Wind Design Workbook © 2000-2002 Chris Buczkowski

Page No

-

Design in accordance with BS 6399 : Part 2 : 1997

Standard Wind Speeds Dynamic Augmentation Factor (Cr) Kb H (m) Cr 0.5 50 0.024

Job No

Made by

equ (C.2)

Basic Wind Speed Vb (m/s) 30

Reference height Hr (m) 50

Cr okay - proceed with design

Ss

Sp

1.00

1.00

Standard values: Ss=1.0 Sp=1.0

Altitude factor for non significant topography Site altitude,S (m) Altitude factor, Sa

0 1.000

equ (9)

N

I غ

IV

II

III

Wind directions

Building orientation unknown Nearby buildings ignored

Direction factor Site Wind Speed (m/s)

Effective Height (m) Distance to sea (km) Terrain Terrain and building factor Effective Wind Speed (m/s) Dynamic Pressure (N/m²)

Sd Vs

I 180 1.000 30.00

Wind Direction II III 270 360 1.000 1.000 30.00 30.00

IV 90 1.000 30.00

He

6 20 50.00

6 20 50.00

6 20 50.00

6 20 50.00

Sb Ve qs

10 town 2.04 61.20 2296.0

10 town 2.04 61.20 2296.0

10 town 2.04 61.20 2296.0

10 town 2.04 61.20 2296.0

equ (8)

equ (12) equ (1)