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Browsing by Subject "Buckling"

Now showing items 1-20 of 22

A numerical model with varying passive confinement for circular and elliptical concrete-filled steel tubular columns

Lacuesta Carrión, César Damián; Romero García, Manuel Luis; Lapuebla-Ferri, Andrés; Adam Martínez, José Miguel (Editorial Universitat Politècnica de València, 2018-06-05)

[EN] In this work, a non-linear 3D numerical model to study concrete-filled tubular (CFST) columns is presented. The numerical model is capable to consider the passive confinement that occurs in the concrete core of CFST ...
Analytical model for predicting the buckling load of continuous welded rail tracks

Navarro Martinez, Juan Ignacio; Villalba Sanchis, Ignacio; Martínez Fernández, Pablo; Insa Franco, Ricardo (SAGE Publications (UK and US), 2015-07)

The use of continuous welded rail (CWR) track has solved many of the problems associated with tread surface discontinuities that occur in jointed tracks. However, due to the longitudinal expansion of the rails in CWR tracks ...
Buckling load reduction of axially compressed cylindrical shells under the action of two interacting localized defects

KHAMLCHI, A.; EL BAHAOUI, J.; EL BAKKALI, L.; LIMAN, A. (Editorial Universitat Politècnica de València, 2009-12-11)

The effect of two localized axisymmetric initial imperfections on the critical load of elastic cylindrical shells subjected to axial compression is studied through finite element modelling. This was carried out by means ...
Buckling of steel and Ni-Ti reinforcements in very high performance concrete (VHPC) elements

Pereiro-Barceló, Javier; Bonet Senach, José Luís; Albiol Ibáñez, José Ramón (Elsevier, 2018)

[EN] Nowadays, the use of new materials is becoming increasingly common in the construction world due to their improved properties. High or Very High Performance Concrete (HPC or VHPC) and Shape Memory Alloys (SMA), ...
Diseño de estructuras metálicas esbeltas susceptibles de pandear. Definicición de la imperfección geométrica

Aguero Ramón Llin, Antonio; Atienza Reales, José Ramón (Elsevier, 2015)

[EN] The purpose of this paper is to present a proposal for the design of steel structures sensitive to buckling to fill the gaps in the current Standard EN 1993-1-1, providing guidelines to obtain the magnitude of the ...
Equivalent geometric imperfection definition in steel structures sensitive to flexural and/or torsional buckling due to compression

Aguero Ramón Llin, Antonio; Pallarés Rubio, Luis; Pallarés Rubio, Francisco Javier (Elsevier, 2015-03)

The purpose of this paper is to present a proposal for the design of steel structures sensitive to buckling due to compression in order to fill in the gaps in the current Standard EN 1993-1-1 guidelines for obtaining the ...
Estudio analítico y por elementos finitos de pandeo elasto-plástico e imperfecto en paneles aeronáuticos

Mínguez Gómez, Soledad (Universitat Politècnica de València, 2020-10-15)

[ES] El presente trabajo aborda el estudio del pandeo y post-pandeo de placas y paneles rectangulares, propios de la estructura semi-monocasco predominante en los diseños aeronáuticos actuales. Se añade la influencia de ...
Experimental study of high strength concrete-filled circular tubular columns under eccentric loading

Portoles, J.M.; Romero, Manuel L.; Bonet Senach, José Luís; Filippou, F.C. (Elsevier, 2011-04)

The paper describes 37 tests conducted on slender circular tubular columns filled with normal and high strength concrete subjected to eccentric axial load. The test parameters were the nominal strength of concrete (30, 70 ...
Experimental study of the effect of fabric webs on static response of Tensairity culmns to axial compresion

WEVER, Thomas; PLAGIANAKOS, Theofanis; LUCHSINGER, Rolf; WAGEMANS, Leo (Editorial Universitat Politècnica de València, 2010-02-22)

Tensairity is a lightweight structural concept consisting of struts and cables stabilised by an inflated tube (Luchsinger et al. [1]). One of the latest structural developments is the application of a fabric web inside ...
Global and local model combination for the structural analysis of the T2 line tram viaduct in Valencia (Spain)

Miguel, Lucía; Monleón Cremades, Salvador (Editorial Universitat Politècnica de València, 2009-12-15)

This paper presents a hybrid folded plate-space truss model and its application to the analysis of the structural behaviour of a steel tram viaduct in the city of Valencia (Spain). The first part of this work deals with ...
Hurricane failures of tanks for the oil industry

GODOY, Luis A. (Editorial Universitat Politècnica de València, 2009-11-25)

This paper presents an overview of recent research aimed at understanding the behavior of aboveground steel tanks under wind loads, carried out by the author and by other researchers in this field. The tanks considered are ...
Imperfection sensitivity in the buckling of single curvature concrete shells

TOMAS, Antonio; MARTI, Pascual; TOVAR, Juan Pedro (Editorial Universitat Politècnica de València, 2009-12-23)

Depending on their geometry, supports, material and loads configuration, shells can experience a reduction in the buckling load. If this happens, the shell is said to be sensitive to imperfections. Several approximate ...
Inelastic Effective Length Factor of Nonsway Reinforced Concrete Columns

Bendito, A.; Romero, Manuel L.; Bonet Senach, José Luís; Miguel Sosa, Pedro; Fernández Prada, Miguel Ángel (American Society of Civil Engineers, 2009-09)

[EN] This paper proposes a new equation for the effective length factor k-factor for reinforced concrete columns in braced frames. The new formula is valid both for normal and high-strength concrete. The equation was ...
Influence of ultra-high strength infill in slender concrete-filled steel tubular columns

Portoles Flaj, José Manuel; Serra Mercé, Enrique; Romero, Manuel L. (Elsevier, 2013-07)

This paper describes 24 tests conducted on slender circular tubular columns filled with normal, high, and ultra-high strength concrete for plain, bar reinforced and steel fiber reinforced columns. These were reinforced and ...
Non-linear analysis of rheological effects in slender composite columns

Fenollosa Forner, Ernesto Jesús; Cabrera Fausto, Ivan; Almerich Chulia, Ana Isabel (Trans Tech Publications, 2014-07-04)

[EN] A thorough analysis of slender columns under axial force and bending moment requires second order effects assessment. Concrete s creep is one of the factors that increase lateral displacements of the bar in the long ...
Risk of increasing temperature due to climate change on operation of the Spanish rail network

Villalba Sanchis, Ignacio; Insa Franco, Ricardo; Salvador Zuriaga, Pablo; Martínez Fernández, Pablo (Elsevier, 2020-01-01)

The rail network in Spain is around 16.000 km of Iberian, standard and narrow gauge, connecting the main population cities and hubs of transport. Due to its geographical location in southern Europe, during the summer months ...
Second-order Direct Analysis of Steel Structures made of tapered members

Chan, Siu-lai; Liu, SW; Liu, YP (Editorial Universitat Politècnica de València, 2018-06-05)

[EN] Mild steel hot-rolled sections are commonly prismatic because of the rolling process with a furnace, but welded sections made from steel plates do not have such a constraint, especially when robotic welding machines ...
Silos and tanks in research and practice: state of the art and current challenges

ROTTER, J. Michael (Editorial Universitat Politècnica de València, 2009-11-25)

Silos and tanks are probably the commonest form of large engineering shell structure in service, but their placement on industrial sites and out of the public eye often leads them to be neglected by researchers and the ...
Simulation and design recommendations of eccentrically loaded slender concrete-filled tubular columns

Portoles Flaj, José Manuel; Romero, Manuel L.; Filippou, Filip C.; Bonet Senach, José Luís (Elsevier, 2011-05)

This paper proposes an efficient numerical model for the simulation of the behavior of slender circular concrete-filled tubular columns subjected to eccentric axial load with single curvature, for the cases of both normal ...
Steel cylinders on local supports with rigid stiffeners

VANLAERE, Wesley; DOERICH, Cornelia; LAGAE, Guy; VAN IMPE, Rudy (Editorial Universitat Politècnica de València, 2009-12-11)

The main part of a traditional silo is the cylindrical shell placed upon a limited number of support columns in order to facilitate emptying operations. These local supports lead to stress concentrations in the cylinder ...