Elastic Design of Single-span Steel Portal Frame Buildings to Eurocodes 3 (KET0009)

Elastic Design of Single-span Steel Portal Frame Buildings to Eurocodes 3, Contents:

1        INTRODUCTION

1.1     Scope

1.2     Why choose a portal frame ?

2        ANATOMY OF A PORTAL FRAME BUILDING

2.1     Main frame

2.2     Haunches

2.3     Bracing

2.4     Secondary steelwork

2.5     Gables

2.6     Building envelope

2.7     Other types of portal frames

3        DESIGN PROCESS

4        ACTIONS

4.1     Permanent actions

4.2     Variable actions

4.3     Crane loads

4.4     Equivalent horizontal forces

4.5     Accidental actions

4.6     Combinations of actions

5        INITIAL DESIGN

5.1     Building layout

5.2     Preliminary analysis

6        FRAME ANALYSIS AT THE ULTIMATE LIMIT STATE

6.1     Elastic frame analysis

6.2     Plastic frame analysis

6.3     First and second-order elastic analysis

6.4     Base stiffness

6.5     Evaluation of in-plane frame stability

6.6     Evaluation of in-plane stability when the axial force in the rafter is significant

6.7     Modified first-order analysis

7        MEMBER VERIFICATION

7.1     Cross-sectional resistance

7.2     Member buckling resistance

7.3     Column stability

7.4     Rafter stability

8       BRACING

8.1     Vertical bracing

8.2     Roof bracing

8.3     Restraint to inner flanges

9        GABLES

9.1     Types of gable frame

9.2     Gable columns

9.3     Gable rafters

10      CONNECTIONS

10.1    Eaves connections

10.2    Apex connections

10.3    Bases, base plates and foundations

11      SECONDARY STRUCTURAL COMPONENTS

11.1    Eaves beam

11.2    Eaves strut

11.3    Purlins

11.4    Side rails

12      CLADDING

13      SERVICEABILITY ASPECTS OF FRAME DESIGN

13.1    Deflections

13.2    Thermal expansion

REFERENCES

CREDITS

APPENDIX A- PRELIMINARY SIZING

APPENDIX B – DETERMINATION OF THE ELASTIC CRITICAL FORCE AND MOMENT

APPENDIX C – DESIGN OF MEMBERS WITH DISCRETE RESTRAINTS TO THE TENSION FLANGE

APPENDIX D – WORKED EXAMPLE

Elastic Design of Single-span Steel Portal Frame Buildings to Eurocodes 3

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