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Détail de l'indexation
624 : Constructions du génie civil et du bâtiment. Infrastructures. Ouvrages en terres. Fondations. Tunnels. Ponts et charpentes
624.01 Structures et éléments de structures d'après les matériaux et procédés de construction
624.012.45 Structures en béton armé. Structures mixtes acier et béton armé
624.03 Dimensions, permanence, localisation et forme de la structure
624.1 Infrastructures.Ouvrages en terre. Fondations. Tunnels
624.13 Géotechnique. Mécanique des sols. Ouvrages en terre. Techniques de congélation des terrains
624.131 Mécanique des sols. Technologie des sols.Etudes techniques et économiques
624.131.5 Statique des sols. Dynamiques des sols
624.132 Excavations et transport des sols. Terrassements
624.151
624.17
624.176/555
624.19 Tunnels. Constructions de tunnels. Galeries. Constructions de galeries
624.2
624.2/.8 Pont. Bâtiment
624/621.24
624/621.34
624/621.34/630
624/627
624/630
624.012.45 Structures en béton armé. Structures mixtes acier et béton armé
624.03 Dimensions, permanence, localisation et forme de la structure
624.1 Infrastructures.Ouvrages en terre. Fondations. Tunnels
624.13 Géotechnique. Mécanique des sols. Ouvrages en terre. Techniques de congélation des terrains
624.131 Mécanique des sols. Technologie des sols.Etudes techniques et économiques
624.131.5 Statique des sols. Dynamiques des sols
624.132 Excavations et transport des sols. Terrassements
624.151
624.17
624.176/555
624.19 Tunnels. Constructions de tunnels. Galeries. Constructions de galeries
624.2
624.2/.8 Pont. Bâtiment
624/621.24
624/621.34
624/621.34/630
624/627
624/630
Ouvrages de la bibliothèque en indexation 624
Affiner la rechercheUnified element and section approach to design of cold-formed steel structures / M. R. Bambach in Journal of structural engineering, Vol. 136 N° 4 (Avril 2010)
[article]
in Journal of structural engineering > Vol. 136 N° 4 (Avril 2010) . - pp. 343-353
Titre : Unified element and section approach to design of cold-formed steel structures Type de document : texte imprimé Auteurs : M. R. Bambach, Auteur Année de publication : 2010 Article en page(s) : pp. 343-353 Note générale : Génie Civil Langues : Anglais (eng) Mots-clés : Cold-formed steel Design Elements Effective width method Buckling, Strength Index. décimale : 624 Constructions du génie civil et du bâtiment. Infrastructures. Ouvrages en terres. Fondations. Tunnels. Ponts et charpentes Résumé : Slender open-section cold-formed steel members that contain flanges with edge stiffeners may buckle in different modes and with mode interactions. The element design approach (effective width method) has been shown to produce unconservative capacity predictions for a particular class of such members. This paper presents a modification to the effective width method derived from an investigation of the fundamental behavior of edge stiffened flange elements and sections that contain them. The modified element design approach is validated against the results of 913 compression and bending members collected from the literature, where all section and member buckling modes and interactions were evident. A section design approach is also presented which is directly in line with the element approach. The unified element and section approach is shown to provide accurate and reliable design solutions for cold-formed steel compression and flexural members. Proposals for the North American specification for cold-formed steel structures are presented.
DEWEY : 624.17 ISSN : 0733-9445 En ligne : http://ascelibrary.org/sto/resource/1/jsendh/v136/i4/p343_s1?isAuthorized=no [article] Unified element and section approach to design of cold-formed steel structures [texte imprimé] / M. R. Bambach, Auteur . - 2010 . - pp. 343-353.
Génie Civil
Langues : Anglais (eng)
in Journal of structural engineering > Vol. 136 N° 4 (Avril 2010) . - pp. 343-353
Mots-clés : Cold-formed steel Design Elements Effective width method Buckling, Strength Index. décimale : 624 Constructions du génie civil et du bâtiment. Infrastructures. Ouvrages en terres. Fondations. Tunnels. Ponts et charpentes Résumé : Slender open-section cold-formed steel members that contain flanges with edge stiffeners may buckle in different modes and with mode interactions. The element design approach (effective width method) has been shown to produce unconservative capacity predictions for a particular class of such members. This paper presents a modification to the effective width method derived from an investigation of the fundamental behavior of edge stiffened flange elements and sections that contain them. The modified element design approach is validated against the results of 913 compression and bending members collected from the literature, where all section and member buckling modes and interactions were evident. A section design approach is also presented which is directly in line with the element approach. The unified element and section approach is shown to provide accurate and reliable design solutions for cold-formed steel compression and flexural members. Proposals for the North American specification for cold-formed steel structures are presented.
DEWEY : 624.17 ISSN : 0733-9445 En ligne : http://ascelibrary.org/sto/resource/1/jsendh/v136/i4/p343_s1?isAuthorized=no Use and misuse of the isotache concept with respect to creep hypotheses A and B / S. A. Begago in Géotechnique, Vol. 61 N° 10 (Octobre 2010)
[article]
in Géotechnique > Vol. 61 N° 10 (Octobre 2010) . - pp. 897-908
Titre : Use and misuse of the isotache concept with respect to creep hypotheses A and B Type de document : texte imprimé Auteurs : S. A. Begago, Auteur ; G. Grimstad, Auteur ; H. P. Jostad, Auteur Année de publication : 2011 Article en page(s) : pp. 897-908 Note générale : Génie Civil Langues : Anglais (eng) Mots-clés : Compressibility Clays Deformation Creep Settlement Consolidation Index. décimale : 624 Constructions du génie civil et du bâtiment. Infrastructures. Ouvrages en terres. Fondations. Tunnels. Ponts et charpentes Résumé : Time-dependent settlements of thick in situ clay layers are normally analysed based on results of thin laboratory specimens. However, the time used to complete primary consolidation is significantly different for laboratory specimens and in situ soil layers. Two totally different cases, referred to as creep hypotheses A and B, have been used as a basis of discussion to assess the effect of creep during the primary consolidation phase. Several laboratory and field experiments have been conducted to study the effect of soil layer thickness on the time-dependent compressibility of a soil layer. Some of these tests seemed to support hypothesis A, others hypothesis B, and in some cases showed a behaviour between the two. As a result this question has continued to be a controversial topic among researchers, and remains to be an issue that needs to be resolved. In this study, some relevant experimental investigations from the literature are thoroughly studied and critically reviewed, and also explained consistently using the isotache concept. This work indicates that the isotache approach can capture the main characteristics of the time-dependent compressibility of clays during both the primary and secondary consolidation phases. It is also shown that the misuse of the isotache concept, as reported in the literature, may give a confusing picture of reality. Based on the considered data, it is demonstrated that the measured time-dependent compressibility of clays agrees well with hypothesis B.
DEWEY : 624.15 ISSN : 0016-8505 En ligne : http://www.icevirtuallibrary.com/content/article/10.1680/geot.9.p.112 [article] Use and misuse of the isotache concept with respect to creep hypotheses A and B [texte imprimé] / S. A. Begago, Auteur ; G. Grimstad, Auteur ; H. P. Jostad, Auteur . - 2011 . - pp. 897-908.
Génie Civil
Langues : Anglais (eng)
in Géotechnique > Vol. 61 N° 10 (Octobre 2010) . - pp. 897-908
Mots-clés : Compressibility Clays Deformation Creep Settlement Consolidation Index. décimale : 624 Constructions du génie civil et du bâtiment. Infrastructures. Ouvrages en terres. Fondations. Tunnels. Ponts et charpentes Résumé : Time-dependent settlements of thick in situ clay layers are normally analysed based on results of thin laboratory specimens. However, the time used to complete primary consolidation is significantly different for laboratory specimens and in situ soil layers. Two totally different cases, referred to as creep hypotheses A and B, have been used as a basis of discussion to assess the effect of creep during the primary consolidation phase. Several laboratory and field experiments have been conducted to study the effect of soil layer thickness on the time-dependent compressibility of a soil layer. Some of these tests seemed to support hypothesis A, others hypothesis B, and in some cases showed a behaviour between the two. As a result this question has continued to be a controversial topic among researchers, and remains to be an issue that needs to be resolved. In this study, some relevant experimental investigations from the literature are thoroughly studied and critically reviewed, and also explained consistently using the isotache concept. This work indicates that the isotache approach can capture the main characteristics of the time-dependent compressibility of clays during both the primary and secondary consolidation phases. It is also shown that the misuse of the isotache concept, as reported in the literature, may give a confusing picture of reality. Based on the considered data, it is demonstrated that the measured time-dependent compressibility of clays agrees well with hypothesis B.
DEWEY : 624.15 ISSN : 0016-8505 En ligne : http://www.icevirtuallibrary.com/content/article/10.1680/geot.9.p.112 Use of lifetime functions in the optimization of nondestructive inspection strategies for bridges / André D. Orcesi in Journal of structural engineering, Vol. 137 N° 4 (Avril 2011)
[article]
in Journal of structural engineering > Vol. 137 N° 4 (Avril 2011) . - pp. 531-539
Titre : Use of lifetime functions in the optimization of nondestructive inspection strategies for bridges Type de document : texte imprimé Auteurs : André D. Orcesi, Auteur ; Dan M. Frangopol, Auteur Année de publication : 2011 Article en page(s) : pp. 531-539 Note générale : Génie Civil Langues : Anglais (eng) Mots-clés : Nondestructive inspection Survival functions Bayesian updating Probability of detection Optimization Index. décimale : 624 Constructions du génie civil et du bâtiment. Infrastructures. Ouvrages en terres. Fondations. Tunnels. Ponts et charpentes Résumé : A model using lifetime functions is used to evaluate the probability of survival of bridge components. The possible outcomes associated with nondestructive inspections (NDIs) are incorporated in an event-tree model. Each time a bridge component is inspected, different decisions can be made. The use of a lifetime function for each component of the structural system enables one to express the probability that the component survives. In theory (i.e., perfect inspection), each NDI should be associated with two possible outcomes: survival or failure. In the first case, no damage is detected and the probability density function of time to failure is updated knowing that the component has survived until the inspection. In the second case, damage is detected and maintenance action is planned. In practice, NDIs are subjected to uncertainties (i.e., imperfect inspections) and detecting or not detecting damage depends on the inspection quality (i.e., probability of detection). For poor-quality inspections, there is a significant risk to overestimate the probability of safe performance. The aim of this paper is to provide a practical methodology for determining optimal NDI strategies for different components of steel bridges. The different types of inspections considered in this paper are visual, magnetic particle, and ultrasonic. An economic analysis is performed and NDI strategies are optimized by simultaneously minimizing both the expected inspection/maintenance cost (i.e., the sum of inspection and maintenance costs) and the expected failure cost. The proposed approach is applied to an existing steel bridge.
DEWEY : 624.17 ISSN : 0733-9445 En ligne : http://ascelibrary.org/sto/resource/1/jsendh/v137/i4/p531_s1?isAuthorized=no [article] Use of lifetime functions in the optimization of nondestructive inspection strategies for bridges [texte imprimé] / André D. Orcesi, Auteur ; Dan M. Frangopol, Auteur . - 2011 . - pp. 531-539.
Génie Civil
Langues : Anglais (eng)
in Journal of structural engineering > Vol. 137 N° 4 (Avril 2011) . - pp. 531-539
Mots-clés : Nondestructive inspection Survival functions Bayesian updating Probability of detection Optimization Index. décimale : 624 Constructions du génie civil et du bâtiment. Infrastructures. Ouvrages en terres. Fondations. Tunnels. Ponts et charpentes Résumé : A model using lifetime functions is used to evaluate the probability of survival of bridge components. The possible outcomes associated with nondestructive inspections (NDIs) are incorporated in an event-tree model. Each time a bridge component is inspected, different decisions can be made. The use of a lifetime function for each component of the structural system enables one to express the probability that the component survives. In theory (i.e., perfect inspection), each NDI should be associated with two possible outcomes: survival or failure. In the first case, no damage is detected and the probability density function of time to failure is updated knowing that the component has survived until the inspection. In the second case, damage is detected and maintenance action is planned. In practice, NDIs are subjected to uncertainties (i.e., imperfect inspections) and detecting or not detecting damage depends on the inspection quality (i.e., probability of detection). For poor-quality inspections, there is a significant risk to overestimate the probability of safe performance. The aim of this paper is to provide a practical methodology for determining optimal NDI strategies for different components of steel bridges. The different types of inspections considered in this paper are visual, magnetic particle, and ultrasonic. An economic analysis is performed and NDI strategies are optimized by simultaneously minimizing both the expected inspection/maintenance cost (i.e., the sum of inspection and maintenance costs) and the expected failure cost. The proposed approach is applied to an existing steel bridge.
DEWEY : 624.17 ISSN : 0733-9445 En ligne : http://ascelibrary.org/sto/resource/1/jsendh/v137/i4/p531_s1?isAuthorized=no Use of wavelet-based damage-sensitive features for structural damage diagnosis using strong motion data / Hae Young Noh in Journal of structural engineering, Vol. 137 N° 10 (Octobre 2011)
[article]
in Journal of structural engineering > Vol. 137 N° 10 (Octobre 2011) . - pp. 1215-1228
Titre : Use of wavelet-based damage-sensitive features for structural damage diagnosis using strong motion data Type de document : texte imprimé Auteurs : Hae Young Noh, Auteur ; Nair, K. Krishnan, Auteur ; Dimitrios G. Lignos, Auteur Année de publication : 2012 Article en page(s) : pp. 1215-1228 Note générale : Génie Civil Langues : Anglais (eng) Mots-clés : Assessment Monitoring Nonstationary processes Earthquake engineering Diagnosis Structural failures Frequency analysis Natural frequency Index. décimale : 624 Constructions du génie civil et du bâtiment. Infrastructures. Ouvrages en terres. Fondations. Tunnels. Ponts et charpentes Résumé : This paper introduces three wavelet-based damage-sensitive features (DSFs) extracted from structural responses recorded during earthquakes to diagnose structural damage. Because earthquake excitations are nonstationary, the wavelet transform, which represents data as a weighted sum of time-localized waves, is used to model the structural responses. These DSFs are defined as functions of wavelet energies at particular frequencies and specific times. The first DSF (DSF1) indicates how the wavelet energy at the original natural frequency of the structure changes as the damage progresses. The second DSF (DSF2) indicates how much the wavelet energy is spread out in time. The third DSF (DSF3) reflects how slowly the wavelet energy decays with time. The performance of these DSFs is validated using two sets of shake-table test data. The results show that as the damage extent increases, the DSF1 value decreases and the DSF2 and DSF3 values increase. Thus, these DSFs can be used to diagnose structural damage. The robustness of these DSFs to different input ground motions is also investigated using a set of simulated data.
DEWEY : 624.17 ISSN : 0733-9445 En ligne : http://ascelibrary.org/sto/resource/1/jsendh/v137/i10/p1215_s1?isAuthorized=no [article] Use of wavelet-based damage-sensitive features for structural damage diagnosis using strong motion data [texte imprimé] / Hae Young Noh, Auteur ; Nair, K. Krishnan, Auteur ; Dimitrios G. Lignos, Auteur . - 2012 . - pp. 1215-1228.
Génie Civil
Langues : Anglais (eng)
in Journal of structural engineering > Vol. 137 N° 10 (Octobre 2011) . - pp. 1215-1228
Mots-clés : Assessment Monitoring Nonstationary processes Earthquake engineering Diagnosis Structural failures Frequency analysis Natural frequency Index. décimale : 624 Constructions du génie civil et du bâtiment. Infrastructures. Ouvrages en terres. Fondations. Tunnels. Ponts et charpentes Résumé : This paper introduces three wavelet-based damage-sensitive features (DSFs) extracted from structural responses recorded during earthquakes to diagnose structural damage. Because earthquake excitations are nonstationary, the wavelet transform, which represents data as a weighted sum of time-localized waves, is used to model the structural responses. These DSFs are defined as functions of wavelet energies at particular frequencies and specific times. The first DSF (DSF1) indicates how the wavelet energy at the original natural frequency of the structure changes as the damage progresses. The second DSF (DSF2) indicates how much the wavelet energy is spread out in time. The third DSF (DSF3) reflects how slowly the wavelet energy decays with time. The performance of these DSFs is validated using two sets of shake-table test data. The results show that as the damage extent increases, the DSF1 value decreases and the DSF2 and DSF3 values increase. Thus, these DSFs can be used to diagnose structural damage. The robustness of these DSFs to different input ground motions is also investigated using a set of simulated data.
DEWEY : 624.17 ISSN : 0733-9445 En ligne : http://ascelibrary.org/sto/resource/1/jsendh/v137/i10/p1215_s1?isAuthorized=no Utilization of fly ash for stabilization of marine dredged sediments / Ernesto Silitonga in European journal of environmental and civil engineering, Vol. 14 N° 2 (Fevrier 2010)
[article]
in European journal of environmental and civil engineering > Vol. 14 N° 2 (Fevrier 2010) . - pp. 253-265
Titre : Utilization of fly ash for stabilization of marine dredged sediments Type de document : texte imprimé Auteurs : Ernesto Silitonga, Auteur ; Daniel Levacher, Auteur ; Salim Mezazigh, Auteur Année de publication : 2010 Article en page(s) : pp. 253-265 Note générale : Génie Civil Langues : Anglais (eng) Mots-clés : Dredged sediments Fly ash Unconfined compressive strength Wetting-drying test Index. décimale : 624 Constructions du génie civil et du bâtiment. Infrastructures. Ouvrages en terres. Fondations. Tunnels. Ponts et charpentes Résumé : Disposal of large sediment from dredging activities is increasingly intractable problem in France. The reuse of dredged sediment as a new material for the construction of foundation and base layers for roads is one of the solution. The main objective of this paper is to describe the behavioral aspect of dredged sediment stabilized with fly ash as a binder for a use in road pavement work. The addition of fly ash as a partial cement replacement is realized due to its engineering, economic and ecological benefits. The first stage contains a determination of the physical and mechanical characteristics of the fly ash and the dredged sediments. In the next stage, the dredged sediment from harbor of Cherbourg has been considered using 2 different types of fly ash and different percentage of fly ash ranging from 5 to 30% by weight of sediment. Finally, the mechanical characteristics of the mix with fly ash addition are compared with the mix with conventional used binders (cement).The experimental results show that the addition of fly ash gives a positive influence on the strength gained of the sample. DEWEY : 624 ISSN : 1964-8189 En ligne : http://ejece.revuesonline.com/resnum.jsp [article] Utilization of fly ash for stabilization of marine dredged sediments [texte imprimé] / Ernesto Silitonga, Auteur ; Daniel Levacher, Auteur ; Salim Mezazigh, Auteur . - 2010 . - pp. 253-265.
Génie Civil
Langues : Anglais (eng)
in European journal of environmental and civil engineering > Vol. 14 N° 2 (Fevrier 2010) . - pp. 253-265
Mots-clés : Dredged sediments Fly ash Unconfined compressive strength Wetting-drying test Index. décimale : 624 Constructions du génie civil et du bâtiment. Infrastructures. Ouvrages en terres. Fondations. Tunnels. Ponts et charpentes Résumé : Disposal of large sediment from dredging activities is increasingly intractable problem in France. The reuse of dredged sediment as a new material for the construction of foundation and base layers for roads is one of the solution. The main objective of this paper is to describe the behavioral aspect of dredged sediment stabilized with fly ash as a binder for a use in road pavement work. The addition of fly ash as a partial cement replacement is realized due to its engineering, economic and ecological benefits. The first stage contains a determination of the physical and mechanical characteristics of the fly ash and the dredged sediments. In the next stage, the dredged sediment from harbor of Cherbourg has been considered using 2 different types of fly ash and different percentage of fly ash ranging from 5 to 30% by weight of sediment. Finally, the mechanical characteristics of the mix with fly ash addition are compared with the mix with conventional used binders (cement).The experimental results show that the addition of fly ash gives a positive influence on the strength gained of the sample. DEWEY : 624 ISSN : 1964-8189 En ligne : http://ejece.revuesonline.com/resnum.jsp Valorisation des LAC dans les mélanges granulaires / André Lecomte in European journal of environmental and civil engineering, Vol. 15 N° 6 (Juin 2011)
PermalinkValorisation des LAC dans les mélanges granulaires / André Lecomte in European journal of environmental and civil engineering, Vol. 15 N° 6 (Juin 2011)
PermalinkVariation of internal pressure with varying sizes of dominant openings and volumes / J. D. Ginger in Journal of structural engineering, Vol. 136 N° 10 (Octobre 2010)
PermalinkVariational Basis of Nonlinear Flexibility Methods for Structural Analysis of Frames / Hjelmstad, K. D. in Journal of engineering mechanics, Vol.131, N°11 (Novembre 2005)
PermalinkVerification of nondimensional energy spectrum-based blast design for reinforced concrete members through actual blast tests / Bing Li in Journal of structural engineering, Vol. 136 N° 6 (Juin 2010)
PermalinkVibration performance of lightweight cold-formed steel floors / R. Parnell in Journal of structural engineering, Vol. 136 N° 6 (Juin 2010)
PermalinkVisual parameters of chloride-induced corrosion of reinforced concrete structures / Sébastien Charles in European journal of environmental and civil engineering, Vol. 15 N° 1 (Janvier 2011)
PermalinkWhy is it necessary to use a damage model to simulate the mechanical behavior of concrete under drying and leaching? / Thomas Rougelot in European journal of environmental and civil engineering, Vol. 14 N° 6-7 (Juin 2010)
PermalinkWind analysis of a suspension bridge / Ah Lum Hong in Journal of structural engineering, Vol. 137 N° 1 (Janvier 2011)
PermalinkWind effects on low-rise metal buildings / Bradley F. Coffman in Journal of structural engineering, Vol. 136 N° 6 (Juin 2010)
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