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Fracture mechanics concepts applied to moment capacity and rotational capacity of reinforced concrete beams

Hillerborg, Arne (1990) In Engineering Fracture Mechanics 35(1-3). p.233-240
Abstract
The theoretical stress-strain relation in the compression zone of a concrete beam is determined by means of an approximate application of a model with strain softening and localization, i.e. with the descending branch described as a stress-deformation relation instead of a stress-strain relation. The results in a stress-strain relation for the compression zone, which is strongly dependent on the depth of this zone. This is in contradiction with existing design rules, which assume that no such size dependence exists. The theoretical results are confirmed by comparisons with test results regarding rotational capacities. Further test comparisons are recommended.



From the International Conference on Fracture and Damage of... (More)
The theoretical stress-strain relation in the compression zone of a concrete beam is determined by means of an approximate application of a model with strain softening and localization, i.e. with the descending branch described as a stress-deformation relation instead of a stress-strain relation. The results in a stress-strain relation for the compression zone, which is strongly dependent on the depth of this zone. This is in contradiction with existing design rules, which assume that no such size dependence exists. The theoretical results are confirmed by comparisons with test results regarding rotational capacities. Further test comparisons are recommended.



From the International Conference on Fracture and Damage of Concrete and Rock and Special Seminar on Large Concrete Dam Structures, June 4-6, 1988, Vienna, Austria (Less)
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author
publishing date
type
Contribution to journal
publication status
published
subject
in
Engineering Fracture Mechanics
volume
35
issue
1-3
pages
233 - 240
publisher
Elsevier
external identifiers
  • scopus:44949267199
ISSN
1873-7315
DOI
10.1016/0013-7944(90)90201-Q
language
English
LU publication?
no
id
0750b192-4da5-46f9-8636-3d49e0334e89 (old id 4091645)
date added to LUP
2013-10-14 16:45:42
date last changed
2017-03-12 04:24:18
@article{0750b192-4da5-46f9-8636-3d49e0334e89,
  abstract     = {The theoretical stress-strain relation in the compression zone of a concrete beam is determined by means of an approximate application of a model with strain softening and localization, i.e. with the descending branch described as a stress-deformation relation instead of a stress-strain relation. The results in a stress-strain relation for the compression zone, which is strongly dependent on the depth of this zone. This is in contradiction with existing design rules, which assume that no such size dependence exists. The theoretical results are confirmed by comparisons with test results regarding rotational capacities. Further test comparisons are recommended.<br/><br>
<br/><br>
From the International Conference on Fracture and Damage of Concrete and Rock and Special Seminar on Large Concrete Dam Structures, June 4-6, 1988, Vienna, Austria},
  author       = {Hillerborg, Arne},
  issn         = {1873-7315},
  language     = {eng},
  number       = {1-3},
  pages        = {233--240},
  publisher    = {Elsevier},
  series       = {Engineering Fracture Mechanics},
  title        = {Fracture mechanics concepts applied to moment capacity and rotational capacity of reinforced concrete beams},
  url          = {http://dx.doi.org/10.1016/0013-7944(90)90201-Q},
  volume       = {35},
  year         = {1990},
}