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Rigidité de torsion des poutres en béton armé fissurées en flexion
In some stability problems of concrete structures, it is necessary to determine the torsional stiffness beyond the linear domain. Tests have shown that it is not as greatly affected by flexural cracking as it is predicted by the BAEL code of practice. The proposed method for the determination of the torsional stiffness of a beam with flexural cracks is based on a rational basis which allows to take into account the main parameters: the opening and spacing of the cracks, the uncracked area and the torsional inertia of concrete in a cracked section, the contribution of reinforcement in a cracked zone, by dowel effect. Even though the experimental results are scattered, they allow to evaluate an important parameter of the proposed model, the diffusion angle which expresses the length of perturbation on each side of a crack.
Rigidité de torsion des poutres en béton armé fissurées en flexion
In some stability problems of concrete structures, it is necessary to determine the torsional stiffness beyond the linear domain. Tests have shown that it is not as greatly affected by flexural cracking as it is predicted by the BAEL code of practice. The proposed method for the determination of the torsional stiffness of a beam with flexural cracks is based on a rational basis which allows to take into account the main parameters: the opening and spacing of the cracks, the uncracked area and the torsional inertia of concrete in a cracked section, the contribution of reinforcement in a cracked zone, by dowel effect. Even though the experimental results are scattered, they allow to evaluate an important parameter of the proposed model, the diffusion angle which expresses the length of perturbation on each side of a crack.
Rigidité de torsion des poutres en béton armé fissurées en flexion
Fouré, Bernard (author) / Hannachi, Naceur Eddine (author)
Revue Française de Génie Civil ; 3 ; 115-154
1999-01-01
40 pages
Article (Journal)
Electronic Resource
Unknown
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