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Détail de l'auteur
Auteur Sause, Richard
Documents disponibles écrits par cet auteur
Affiner la rechercheBehavior of Corrugated Web I-Girders Under In Plane Loads / Abbas, Hassan H. in Journal of engineering mechanics, V ol. 132 N°8 (Août 2006)
[article]
in Journal of engineering mechanics > V ol. 132 N°8 (Août 2006) . - 806-814 p.
Titre : Behavior of Corrugated Web I-Girders Under In Plane Loads Titre original : Comportement des poutres Ondulées du Web I Dessous dans les Charges Plates Type de document : texte imprimé Auteurs : Abbas, Hassan H., Auteur ; Sause, Richard, Auteur ; Driver, Robert G. ; Guzina, Bojan B., Editeur scientifique Article en page(s) : 806-814 p. Note générale : Génie Mécanique Langues : Anglais (eng) Mots-clés : Corrugation Flanges Flexure Shear Steel Torsion Webs Girders Plissement Brides Cisaillement Acier Poutres Index. décimale : 621.34 Résumé : A theoretical formulation of the linear elastic in plane and torsional behavior of corrugated web I girders under in plane loads is presented. A typical corrugated web steel I girder consists of two steel flanges welded to a corrugated steel web. Under a set of simplifying assumptions, the equilibrium of an infinitesimal length of a corrugated web I girder is studied, and the cross sectional stresses and stress resultants due to primary bending moment and shear are deduced. The analysis shows that a corrugated web I girder will twist out of plane simultaneously as it deflects in plane under the action of in plane loads. In the paper, the in plane bending behavior is analyzed using conventional beam theory, whereas the out of plane torsional behavior is analyzed as a flange transverse bending problem. The results for a simply supported span subjected to a uniformly distributed load are presented. Finally, finite element analysis results are presented and compared to the theoretical results for validation.
Une formulation théorique de l'élastique linéaire dans le comportement plat et de torsion des poutres ondulées de l'enchaînement I dessous dans les charges plates est présentée. Une poutre ondulée typique de l'acier I d'enchaînement se compose de deux brides en acier soudées à un enchaînement en acier ondulé. Sous un ensemble de simplifier des prétentions, l'équilibre d'une longueur infinitésimale d'une poutre ondulée de l'enchaînement I est étudié, et les efforts et les résultantes en coupe d'effort dues au moment de flexion et au cisaillement primaires sont déduits. L'analyse prouve qu'une poutre ondulée de l'enchaînement I tordra hors de l'avion simultanément comme elle guide dans l'avion sous l'action de dans les charges plates. Dans le papier, dans le comportement de recourbement d'avion est analysé en utilisant la théorie conventionnelle de faisceau, tandis que hors du comportement de torsion plat est analysé comme problème de recourbement transversal de bride. Les résultats pour une envergure simplement soutenue soumise à une charge uniformément distribuée sont présentés. En conclusion, des résultats finis d'analyse d'élément sont présentés et comparés aux résultats théoriques pour la validation.
En ligne : haa4@lehigh.edu [article] Behavior of Corrugated Web I-Girders Under In Plane Loads = Comportement des poutres Ondulées du Web I Dessous dans les Charges Plates [texte imprimé] / Abbas, Hassan H., Auteur ; Sause, Richard, Auteur ; Driver, Robert G. ; Guzina, Bojan B., Editeur scientifique . - 806-814 p.
Génie Mécanique
Langues : Anglais (eng)
in Journal of engineering mechanics > V ol. 132 N°8 (Août 2006) . - 806-814 p.
Mots-clés : Corrugation Flanges Flexure Shear Steel Torsion Webs Girders Plissement Brides Cisaillement Acier Poutres Index. décimale : 621.34 Résumé : A theoretical formulation of the linear elastic in plane and torsional behavior of corrugated web I girders under in plane loads is presented. A typical corrugated web steel I girder consists of two steel flanges welded to a corrugated steel web. Under a set of simplifying assumptions, the equilibrium of an infinitesimal length of a corrugated web I girder is studied, and the cross sectional stresses and stress resultants due to primary bending moment and shear are deduced. The analysis shows that a corrugated web I girder will twist out of plane simultaneously as it deflects in plane under the action of in plane loads. In the paper, the in plane bending behavior is analyzed using conventional beam theory, whereas the out of plane torsional behavior is analyzed as a flange transverse bending problem. The results for a simply supported span subjected to a uniformly distributed load are presented. Finally, finite element analysis results are presented and compared to the theoretical results for validation.
Une formulation théorique de l'élastique linéaire dans le comportement plat et de torsion des poutres ondulées de l'enchaînement I dessous dans les charges plates est présentée. Une poutre ondulée typique de l'acier I d'enchaînement se compose de deux brides en acier soudées à un enchaînement en acier ondulé. Sous un ensemble de simplifier des prétentions, l'équilibre d'une longueur infinitésimale d'une poutre ondulée de l'enchaînement I est étudié, et les efforts et les résultantes en coupe d'effort dues au moment de flexion et au cisaillement primaires sont déduits. L'analyse prouve qu'une poutre ondulée de l'enchaînement I tordra hors de l'avion simultanément comme elle guide dans l'avion sous l'action de dans les charges plates. Dans le papier, dans le comportement de recourbement d'avion est analysé en utilisant la théorie conventionnelle de faisceau, tandis que hors du comportement de torsion plat est analysé comme problème de recourbement transversal de bride. Les résultats pour une envergure simplement soutenue soumise à une charge uniformément distribuée sont présentés. En conclusion, des résultats finis d'analyse d'élément sont présentés et comparés aux résultats théoriques pour la validation.
En ligne : haa4@lehigh.edu Behavior of hollow tubular-flange girder systems for curved bridges / Jun Dong in Journal of structural engineering, Vol. 136 N° 2 (Fevrier 2010)
[article]
in Journal of structural engineering > Vol. 136 N° 2 (Fevrier 2010) . - pp. 174-182
Titre : Behavior of hollow tubular-flange girder systems for curved bridges Type de document : texte imprimé Auteurs : Jun Dong, Auteur ; Sause, Richard, Auteur Année de publication : 2011 Article en page(s) : pp. 174-182 Note générale : Génie Civil Langues : Anglais (eng) Mots-clés : Tubular flange grider Curved bridge Finite element Initial geometric imperfection Residual stresses Load capacity Index. décimale : 624 Constructions du génie civil et du bâtiment. Infrastructures. Ouvrages en terres. Fondations. Tunnels. Ponts et charpentes Résumé : This paper describes research results for an innovative curved highway bridge girder system, which uses I-shaped steel girders with hollow rectangular tubes as flanges. The increased torsional stiffness provided by the tubular flanges dramatically improves the structural behavior of the curved girders, resulting in substantially reduced deflection, cross section rotation, and stress compared to conventional curved I-shaped steel plate girders. In this paper, finite-element (FE) models for systems of curved tubular-flange girders are described. The models consider material inelasticity, second-order effects, initial geometric imperfection, and residual stresses. The girder systems are comprised of curved hollow tubular-flange girders (CHTFGs), cross frames between the CHTFGs, and a concrete deck. A parametric study is performed using the FE models to study the effects of web stiffeners, tube diaphragms, geometric imperfection, and residual stresses on the load capacity of three-girder systems with CHTFGs. Then, the results for the CHTFG systems are compared with results for corresponding conventional curved I-girder systems. The effects of the curvature, cross section dimensions, number of cross frames, and a concrete deck are investigated. The results indicate that the CHTFG systems are more structurally efficient than the corresponding curved I-girder systems.
DEWEY : 624.17 ISSN : 0733-9445 En ligne : http://ascelibrary.org/sto/resource/1/jsendh/v136/i2/p174_s1?isAuthorized=no [article] Behavior of hollow tubular-flange girder systems for curved bridges [texte imprimé] / Jun Dong, Auteur ; Sause, Richard, Auteur . - 2011 . - pp. 174-182.
Génie Civil
Langues : Anglais (eng)
in Journal of structural engineering > Vol. 136 N° 2 (Fevrier 2010) . - pp. 174-182
Mots-clés : Tubular flange grider Curved bridge Finite element Initial geometric imperfection Residual stresses Load capacity Index. décimale : 624 Constructions du génie civil et du bâtiment. Infrastructures. Ouvrages en terres. Fondations. Tunnels. Ponts et charpentes Résumé : This paper describes research results for an innovative curved highway bridge girder system, which uses I-shaped steel girders with hollow rectangular tubes as flanges. The increased torsional stiffness provided by the tubular flanges dramatically improves the structural behavior of the curved girders, resulting in substantially reduced deflection, cross section rotation, and stress compared to conventional curved I-shaped steel plate girders. In this paper, finite-element (FE) models for systems of curved tubular-flange girders are described. The models consider material inelasticity, second-order effects, initial geometric imperfection, and residual stresses. The girder systems are comprised of curved hollow tubular-flange girders (CHTFGs), cross frames between the CHTFGs, and a concrete deck. A parametric study is performed using the FE models to study the effects of web stiffeners, tube diaphragms, geometric imperfection, and residual stresses on the load capacity of three-girder systems with CHTFGs. Then, the results for the CHTFG systems are compared with results for corresponding conventional curved I-girder systems. The effects of the curvature, cross section dimensions, number of cross frames, and a concrete deck are investigated. The results indicate that the CHTFG systems are more structurally efficient than the corresponding curved I-girder systems.
DEWEY : 624.17 ISSN : 0733-9445 En ligne : http://ascelibrary.org/sto/resource/1/jsendh/v136/i2/p174_s1?isAuthorized=no Kinematic transformations for planar multi-directional pseudodynamic testing / Mercan, Oya in Earthquake engineering structural dynamics, Vol. 38 N° 9 (Juillet 2009)
[article]
in Earthquake engineering structural dynamics > Vol. 38 N° 9 (Juillet 2009) . - pp. 1093-1119
Titre : Kinematic transformations for planar multi-directional pseudodynamic testing Type de document : texte imprimé Auteurs : Mercan, Oya, Auteur ; Ricles, James M., Auteur ; Sause, Richard, Auteur Article en page(s) : pp. 1093-1119 Note générale : Génie Civil Langues : Anglais (eng) Mots-clés : Error detection; Kinematic correction; Multi-directional testing; Pseudodynamic test method; Test structure Index. décimale : 624.1 Infrastructures.Ouvrages en terre. Fondations. Tunnels Résumé : The pseudodynamic (PSD) test method imposes command displacements to a test structure for a given time step. The measured restoring forces and displaced position achieved in the test structure are then used to integrate the equations of motion to determine the command displacements for the next time step. Multi-directional displacements of the test structure can introduce error in the measured restoring forces and displaced position. The subsequently determined command displacements will not be correct unless the effects of the multi-directional displacements are considered. This paper presents two approaches for correcting kinematic errors in planar multi-directional PSD testing, where the test structure is loaded through a rigid loading block. The first approach, referred to as the incremental kinematic transformation method, employs linear displacement transformations within each time step. The second method, referred to as the total kinematic transformation method, is based on accurate nonlinear displacement transformations. Using three displacement sensors and the trigonometric law of cosines, this second method enables the simultaneous nonlinear equations that express the motion of the loading block to be solved without using iteration. The formulation and example applications for each method are given. Results from numerical simulations and laboratory experiments show that the total transformation method maintains accuracy, while the incremental transformation method may accumulate error if the incremental rotation of the loading block is not small over the time step. A procedure for estimating the incremental error in the incremental kinematic transformation method is presented as a means to predict and possibly control the error. ISSN : 0098-8847 En ligne : http://www3.interscience.wiley.com/journal/121641476/abstract [article] Kinematic transformations for planar multi-directional pseudodynamic testing [texte imprimé] / Mercan, Oya, Auteur ; Ricles, James M., Auteur ; Sause, Richard, Auteur . - pp. 1093-1119.
Génie Civil
Langues : Anglais (eng)
in Earthquake engineering structural dynamics > Vol. 38 N° 9 (Juillet 2009) . - pp. 1093-1119
Mots-clés : Error detection; Kinematic correction; Multi-directional testing; Pseudodynamic test method; Test structure Index. décimale : 624.1 Infrastructures.Ouvrages en terre. Fondations. Tunnels Résumé : The pseudodynamic (PSD) test method imposes command displacements to a test structure for a given time step. The measured restoring forces and displaced position achieved in the test structure are then used to integrate the equations of motion to determine the command displacements for the next time step. Multi-directional displacements of the test structure can introduce error in the measured restoring forces and displaced position. The subsequently determined command displacements will not be correct unless the effects of the multi-directional displacements are considered. This paper presents two approaches for correcting kinematic errors in planar multi-directional PSD testing, where the test structure is loaded through a rigid loading block. The first approach, referred to as the incremental kinematic transformation method, employs linear displacement transformations within each time step. The second method, referred to as the total kinematic transformation method, is based on accurate nonlinear displacement transformations. Using three displacement sensors and the trigonometric law of cosines, this second method enables the simultaneous nonlinear equations that express the motion of the loading block to be solved without using iteration. The formulation and example applications for each method are given. Results from numerical simulations and laboratory experiments show that the total transformation method maintains accuracy, while the incremental transformation method may accumulate error if the incremental rotation of the loading block is not small over the time step. A procedure for estimating the incremental error in the incremental kinematic transformation method is presented as a means to predict and possibly control the error. ISSN : 0098-8847 En ligne : http://www3.interscience.wiley.com/journal/121641476/abstract