Lecture 9
| Arch 324/624, Introduction to Structural Design, University
of Virginia Copyright © 1996-2008 Kirk Martini. Last Modified Fri, 15-Feb-2008 15:39 |
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Beams and Bending
What could be simpler?
Recall
Bending Moment
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Fundamental Ideas
- All beams involve bending: tension and compression stresses
working on opposite edges of the beam to form a couple.
- This action deforms each small rectangular slice of a beam into a wedge
shape that is narrower on the compression side and wider on the tension
side.
- By studying this deformation and relating it to mechanics of materials,
we can establish a relationship between the internal moment, the
stress in the beam, and the cross section properties.
- This relationship is critical to understanding the proper form and proportioning of beams.
Curvature, Bending, Moments, and Stress
| Arch 324/624, Introduction to Structural Design, University
of Virginia Copyright © 1996-2008 Kirk Martini. Last Modified Fri, 15-Feb-2008 15:39 |
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of Contents |