Workgroup Contents

Lecture 9.3 : Design Procedures for Beams

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1. INTRODUCTION

2. PREPARATION OF DESIGN PROCEDURES

2.1 Resistance Moment MRd

2.1.1 Plastic resistance moment

2.1.2 MRd with respect to buckling

2.2 Shear Lag

2.3 Flange Curling

2.4 Lateral and Torsional Restraints

3. DESIGN OF BEAMS

3.1 Design of Beams without Lateral-Torsional Buckling

3.2 Design of Beams with Lateral-Torsional Buckling

3.3 Design for Torsion

4. DESIGN OF PURLINS

4.1 Cross-Sections

4.2 Purlin Systems

4.3 Design Models

4.4 Stability Check

4.5 Design of Special Purlin Systems

4.5.1 Single span systems

4.5.2 Double span systems with continuous cross-sections

4.5.3 Overlap and sleeve systems

4.6 Further Aspects in Design

4.7 Design by Testing

4.8 Some Practical Aspects

4.8.1 Connection of purlins to frames

4.8.2 In-plane forces in sheeting

4.8.3 Prevention of lateral-torsional buckling

5. CONCLUDING SUMMARY

6. REFERENCES