Load‐Deflection Curves For Elastic‐Softening Beams
Publication: Journal of Structural Engineering
Volume 110, Issue 10
Abstract
Softening, the decrease of bending moment capacity of a section at advanced curvature, may occur in a statically indeterminate reinforced concrete structure prior to the attainment of maximum load. Critical softening is that value of negative stiffness for a first formed hinge at which a structure cannot sustain increased load. The bending-moment versus softening parameter and load-deflection relationships for uniformly loaded fixed-end beams are derived, for sub-critical, critical and super-critical softening of first and second formed hinges. Corresponding load-deflection curves are presented, for particular values of hinge length and softening parameter.
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Copyright © 1984 ASCE.
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Published online: Oct 1, 1984
Published in print: Oct 1984
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