Wind Actions to BS EN 1991-1-4 (KET0020)

Wind Actions to BS EN 1991-1-4, Contents:

1        INTRODUCTION

1.1     Design Standard and supporting documents

1.2     Scope

1.3     Arrangement of this Design Guide

2        THE NATURE OF WIND

2.1     The wind climate

2.2     The atmospheric boundary layer

2.3     Turbulence

2.4     Orography

3        HOW WIND ACTS ON BUILDINGS

3.1     Flow around an obstruction

3.2     Detachment

3.3     Surface pressures

3.4     Size effect

3.5     High local suctions

3.6     Overall forces

4        HOW BUILDINGS REACT TO WIND

4.1     Dynamic amplification

4.2     Cross-wind oscillation

4.3     Interference between buildings

5        THE CALCULATION PROCEDURE

5.1     General

5.2     The influence of orography

5.3     Calculation of peak velocity pressure

5.4     Calculation of overall force

5.5     Application of lateral wind force to the building

6        SURFACE PRESSURES

6.1     External pressure coefficients

6.2     Internal pressure

6.3     Pressures for cladding design

6.4     Division by parts

6.5     Multispan roofs

7        DESIGN VALUES OF WIND ACTIONS

7.1     Classification

7.2     Partial factors on actions

7.3     Accidental design situations

7.4     Fatigue limit state

8        TALL AND UNUSUAL STRUCTURES

9        DESIGN EXAMPLE

9.1     Wind on a building (Sheffield Bioincubator)

9.2     Some comparisons

9.3     Wind on an element (the external column)

10      CLADDING DESIGN EXAMPLE

10.1    Velocity pressure for cladding design

10.2    Size and dynamic factor for cladding

10.3    External pressure coefficients

10.4    Internal pressure coefficients

10.5    Pressure for cladding specification

REFERENCES

CREDITS

A       APPENDIX: THE MORE ELABORATE TREATMENT

B        APPENDIX: DESIGN ACTIONS FOR NON STANDARD DURATIONS

B.1     Probability factor

B.2     Season factor

B.3     Minimum wind

C        APPENDIX: CALCULATION AIDS

Wind Actions to BS EN 1991-1-4

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