Book contents
- Frontmatter
- Contents
- Preface
- Acknowledgements
- Author’s Note
- Part I Simple Structures
- Part II Truss Frameworks
- Part III Beams and Frames: Character
- Part IV Beams and Frames: Analysis
- Part V Design Choices
- 13 Bending vs Stretching
- 14 Cross-Sectional Stiffness
- 15 Cross-Sectional Strength
- 16 Back of the Envelope: Beam Design by Lower Bound
- 17 The Third Dimension
- Part VI Deliberately Deformed
- Further Reading
- Index
17 - The Third Dimension
from Part V - Design Choices
Published online by Cambridge University Press: 06 January 2022
Book contents
- Frontmatter
- Contents
- Preface
- Acknowledgements
- Author’s Note
- Part I Simple Structures
- Part II Truss Frameworks
- Part III Beams and Frames: Character
- Part IV Beams and Frames: Analysis
- Part V Design Choices
- 13 Bending vs Stretching
- 14 Cross-Sectional Stiffness
- 15 Cross-Sectional Strength
- 16 Back of the Envelope: Beam Design by Lower Bound
- 17 The Third Dimension
- Part VI Deliberately Deformed
- Further Reading
- Index
Summary
Grillages are out-of-plane structures made from interconnected beams and frames. They thus couple bending and torsional equilibrium, as well as shearing and axial effects. Their displacements and rotations are similarly coupled, and their calculation is amenable to the Force Method when small. This chapter provides suitable demonstration and examines the relative contribution of torsional stiffness towards the overall structural stiffness.
- Type
- Chapter
- Information
- Solving Problems of Simple Structural Mechanics , pp. 140 - 146Publisher: Cambridge University PressPrint publication year: 2022