Derivation of the shear strength of continuous beams

The elastic—full plastic loading curve is for all materials sufficient to explain the strength of beams and beam columns loaded by bending and compression. This theory is extended for the influence of shear stress, and it is shown to be the only way to explain the combined bending-shear strength fro...

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Bibliographic Details
Published in:European journal of wood and wood products 2011-08, Vol.69 (3), p.421-430
Main Authors: Put, T. A. C. M., Kuilen, J. W. G.
Format: Article
Language:English
Subjects:
Bearing strength
Bend strength
Biomedical and Life Sciences
Ceramics
Columns (structural)
Composites
Compression
Compressive strength
Continuous beams
Glass
Life Sciences
Machines
Manufacturing
Natural Materials
Originals Originalarbeiten
Plastic flow
Plastics
Processes
Shear flow
Shear strength
Shear stress
Wood Science & Technology
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Summary:The elastic—full plastic loading curve is for all materials sufficient to explain the strength of beams and beam columns loaded by bending and compression. This theory is extended for the influence of shear stress, and it is shown to be the only way to explain the combined bending-shear strength from test results. Also, the in the past derived bearing strength theory is extended here for bracing action. It will be shown for continuous beams as example, that besides moment redistribution by plastic flow in bending, a plastic shear flow mechanism exists that is also able to cause full moment redistribution. The derivations lead to requirements for the design rules and show how the shear stress may reduce the ultimate bending capacity.
ISSN:0018-3768
1436-736X
DOI:10.1007/s00107-010-0473-3