Erection behavior and grillage model accuracy for a large radius curved bridge

Linzell, Daniel G.; Shura, Jason F

doi:10.1016/j.jcsr.2009.09.013

Cited by 14 publications

(5 citation statements)

References 11 publications

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“…An accurate analysis of these complex structures is extremely challenging. In order to simplify the analysis, some researchers try to idealize the complex bridge deck structures into a simple structural system such as grillage, equivalent orthotropic plate and some other form [1][2][3] but the solution accuracy is affected with these simplifications which may not be acceptable for a reliable design of these structures. A satisfactory result can be obtained by using a detailed finite element modelling [4][5][6][7][8][9][10] of these curved structures but this is not feasible in a design office, specifically, for a preliminary design of these structures.…”

Section: Introductionmentioning

confidence: 99%

Load distribution for composite steel–concrete horizontally curved box girder bridge

Fatemi

Ali

Sheikh

2016

Journal of Constructional Steel Research

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Section: Introductionmentioning

confidence: 99%

Load distribution for composite steel–concrete horizontally curved box girder bridge

Fatemi

Ali

Sheikh

2016

Journal of Constructional Steel Research

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“…Iako suvremene konfiguracije računala omogućuju izradu proračunskih modela korištenjem štapnih, pločastih i prostornih elemenata ili njihovom kombinacijom, jednostavni roštiljni modeli sastavljeni od štapnih konačnih elemenata nisu izgubili svoje mjesto u inženjerskoj primjeni [7][8][9][10][11][12][13]. Jednostavne roštiljne modele karakterizira brzina i lakoća modeliranja te jednostavnost interpretacije rezultata, zadovoljavajuća točnost u usporedbi s rezultatima ispitivanja i rezultatima složenijih modela, kao i neovisnost o snažnim računalima [9,10,14,15].…”

Section: Uvodunclassified

Određivanje Proračunske Širine T-Presjeka Poprečnog Nosača

Grandić¹,

Grandić²,

Brezac³

2011

e-GFOS

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Goran BrezacSveučilište u Rijecu, Građevinski fakultet, dipl.ing.građ. Sažetak: U ovom radu analizira se i vrjednuje proračunska širina T-presjeka poprečnog nosača podvožnjaka Vrata 1 na temelju proračuna i rezultata pokusnog opterećenja. Rebrasti gredni mostovi najčešće se proračunavaju kao štapni roštiljni sustavi. Uzdužni i poprečni nosači se, zajedno sa sudjelujućim dijelom kolničke ploče, promatraju kao T-presjeci. Njihova krutost ovisi o proračunskoj (sudjelujućoj) širini T-presjeka koja ovisi o više čimbenika, među ostalim i o opterećenju koje na mostu može biti različito po intenzitetu i položaju. U ovom radu se određuju proračunske širine T-presjeka poprečnog nosača u polju roštiljne rasponske konstrukcije pomoću numeričkih proračuna po metodi konačnih elemenata za različite položaje pokusnog opterećenja. Na taj način određene proračunske širine rabe se za proračun progiba na jednostavnim roštiljnim modelima. Proračunani progibi uspoređuju se s odgovarajućim progibima podvožnjaka izmjerenima pri pokusnom opterećenju i progibima proračunanima na jednostavnom roštiljnom modelu u kojemu je uporabljena proračunska širina T-presjeka poprečnog nosača u polju prema normi HRN ENV 1992-1-1.Ključne riječi: gredni rebrasti most, poprečni nosač, proračunska širina T-presjeka DETERMINATION OF AN EFFECTIVE WIDTH OF A T-BEAM CROSS SECTION OF TRANSFERSAL RIBBED BRIDGE DECKAbstract: In this paper an effective width of a T-beam cross section of transversal girder of underpass Vrata 1 is analyzed and valorized on the basis of field testing results and results of conducted calculations. The most common method used in ribbed bridge decks analysis is grillage analogy. Longitudinal and transversal girders, together with an effective part of a deck slab acts as T-shaped beams. Stiffness of longitudinal and transversal structural elements depends on effective width of the T-beams. The effective width of T-beams depends on several factors, among others it depends on the load applied on the bridge, which can vary in intensity and position. In this paper the effective widths of the T-beam of the transversal girder in the span are determined by using numerical calculation on finite element model for different load testing schemes. The effective widths of T-beam determined in this way are used for the calculation of deflection on a simple grillage models. Calculated deflections are compared with the corresponding measured deflection on underpass under test loading and deflections calculated on a simple grillage model in which the effective width of T-beam cross-section in the span is determined according to HRN ENV 1992-1-1.

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“…Thus, it is not convenient to design the reinforcement. By analyzing the advantages and disadvantages of exiting methods such as the traditional internal force calculating method, space grillage analysis of structure by general beam theory [3], spatial frame computer program [1] and the practical space calculation method [4], a 3D beam-shell element model for internal force is adopted. The space beam-shell element model is presented in Fig.…”

Section: Internal Forces By 3d Beam-shell Elementmentioning

confidence: 99%

Structural Optimization of Reinforced Concrete Aqueduct with Multi-Longitudinal Beams Part I: Method

Guan

Zhao

2011

AMR

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Former approaches fordesigning reinforced concrete aqueduct with multi-longitudinal beams were mostly based on experience. In this study, an optimization method is proposed instead. According to the mechanical characteristics of aqueduct, optimization principlesfor structural deformation coordination and sectional crack-resisting are developed. Furthermore, in optimization of large and complex reinforced concrete aqueduct, this method employs nominal tensile stress to control the maximum crack width. In addition, a 3D beam-shell element model is suggested for calculating internal force of aqueduct.

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Erection behavior and grillage model accuracy for a large radius curved bridge

Cited by 14 publications

References 11 publications

Load distribution for composite steel–concrete horizontally curved box girder bridge

Load distribution for composite steel–concrete horizontally curved box girder bridge

Određivanje Proračunske Širine T-Presjeka Poprečnog Nosača

Structural Optimization of Reinforced Concrete Aqueduct with Multi-Longitudinal Beams Part I: Method

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