Beams and columns

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Sheet steel as a protective membrane for steel beams and columns

Sheet steel as a protective membrane for steel beams and columns

Access and use of this website and the material on it are subject to the Terms and Conditions set forth at Sheet steel as a protective membrane for steel beams and columns Stanzak, W.. [r]

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Preliminary investigation into the use of sheet metal as a membrane protection for steel beams and columns

Preliminary investigation into the use of sheet metal as a membrane protection for steel beams and columns

https://doi.org/10.4224/20337930 Access and use of this website and the material on it are subject to the Terms and Conditions set forth at Preliminary investigation into the use of sheet metal as a membrane protection for steel beams and columns

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Fire endurance of protected steel columns and beams: a compilation of published information on fire endurance of protected steel columns and beams by a number of test methods

Fire endurance of protected steel columns and beams: a compilation of published information on fire endurance of protected steel columns and beams by a number of test methods

https://doi.org/10.4224/20331674 Access and use of this website and the material on it are subject to the Terms and Conditions set forth at Fire endurance of protected steel columns and beams: a compilation of published information on fire endurance of protected steel columns and beams by a number of test methods

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A Method for assessing the fire resistance of laminated timber beams and columns

A Method for assessing the fire resistance of laminated timber beams and columns

This publication could be one of several versions: author’s original, accepted manuscript or the publisher’s version. / La version de cette publication peut être l’une des suivantes : la version prépublication de l’auteur, la version acceptée du manuscrit ou la version de l’éditeur. Access and use of this website and the material on it are subject to the Terms and Conditions set forth at

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Performance in fire of fibre reinforced polymer strengthened concrete beams and columns: recent recent and implications for design

Performance in fire of fibre reinforced polymer strengthened concrete beams and columns: recent recent and implications for design

This publication could be one of several versions: author’s original, accepted manuscript or the publisher’s version. / La version de cette publication peut être l’une des suivantes : la version prépublication de l’auteur, la version acceptée du manuscrit ou la version de l’éditeur. Access and use of this website and the material on it are subject to the Terms and Conditions set forth at

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Surface waves from flexural and compressional resonances of beams

Surface waves from flexural and compressional resonances of beams

Surface elastic waves can propagate in a soil substrate supporting a periodic array of resonating elements. This has been chiefly demonstrated in the GHz regime with resonant pillars of typically 1/10 micrometer scale [ 1 – 4 ]. Considering meter length scale the frequency range falls in the spectrum of seismic waves and in this context, an array of beams on a soil substrate is the canonic idealized configuration used in seismology to illustrate the problem of ”site-city interaction” [ 5 ]. From a theoretical point of view, most of the models encapsulate the behavior of the resonators with a single or multi-degree of freedom system, resulting in effective boundary conditions of the Robin type for the soil on its own [ 6 – 8 ]. On the basis of these models new devices of seismic metasurfaces have been shown to efficiently shield Rayleigh [ 9 – 14 ] and Love [ 15 – 17 ] waves. In most cases, only the compressional resonances of the resonators were considered. In a recent work, the case of flexural resonances of beams has been considered [ 18 ]. However, the study does not address the configuration of beams in perfect contact with the soil and merely considers motions in the sagittal plane due to flexural resonances.
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High intensity beams at GANIL and future opportunities: LINAG

High intensity beams at GANIL and future opportunities: LINAG

I - INTRODUCTION he systematic and very successful use of high energy fragmentation at GANIL with the first operational high intensity heavy ion accelerator in the 50-100 MeV/nucleon domain, for exploring the structure of nuclei far from stability triggered the question of how to proceed even further in this domain. The study of nuclei far from stability has become one of the major activities at GANIL, and is one of its areas of excellence. In the near future, the possibility of producing and accelerating radioactive beams by the Isol method will be available. For this reason the directors and the scientific council of GANIL decided about four years ago to initiate work on long-range perspectives. The results of the working groups can be found in the minutes of the scientific council, and the physics case has been published recently [ref 1].
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Liquid dispersion in packed columns: experiments and numerical modeling

Liquid dispersion in packed columns: experiments and numerical modeling

Open Archive TOULOUSE Archive Ouverte (OATAO) OATAO is an open access repository that collects the work of Toulouse researchers and makes it freely available over the web where possible. This is an author-deposited version published in : http://oatao.univ-toulouse.fr/ Eprints ID : 9829

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Liquid dispersion in packed columns: experiments and numerical modelling

Liquid dispersion in packed columns: experiments and numerical modelling

To cite this version : Fourati, Manel and Roig, Véronique and Raynal, Ludovic. Liquid dispersion in packed columns: experiments and numerical modelling. (2013) In: 11th International Conference on Gas-Liquid & Gas-Liquid-Solid Reactor Engineering, 19 August 2013 - 22 August 2013 (Séoul, Korea, Republic Of).

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HEAVY ION SECONDARY BEAMS

HEAVY ION SECONDARY BEAMS

HAL Id: jpa-00225794 https://hal.archives-ouvertes.fr/jpa-00225794 Submitted on 1 Jan 1986 HAL is a multi-disciplinary open access archive for the deposit and dissemination of sci- entific research documents, whether they are pub- lished or not. The documents may come from teaching and research institutions in France or abroad, or from public or private research centers.

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Secondary Beams at GANIL

Secondary Beams at GANIL

The accelerator has provided physicists with intermediate energy (from 25 to 95 MeV/nucleon) heavy-ion beams, the optical qualities of which are well-known. From the first experiments at[r]

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Fire resistance of reinforced concrete columns and walls

Fire resistance of reinforced concrete columns and walls

L’accès à ce site Web et l’utilisation de son contenu sont assujettis aux conditions présentées dans le site LISEZ CES CONDITIONS ATTENTIVEMENT AVANT D’UTILISER CE SITE WEB. Proceedings of the Canadian Structural Concrete Conference, pp. 17-33, 1977 READ THESE TERMS AND CONDITIONS CAREFULLY BEFORE USING THIS WEBSITE. https://nrc-publications.canada.ca/eng/copyright

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Columns and walls : the interplay between structure and space

Columns and walls : the interplay between structure and space

Conventional buildings were based on an orthogonal geometry in which the column and wall systems maintain a complementary correlation between structural and spatial for[r]

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Fabrication and mechanical testing of glass fiber entangled sandwich beams: A comparison with honeycomb and foam sandwich beams

Fabrication and mechanical testing of glass fiber entangled sandwich beams: A comparison with honeycomb and foam sandwich beams

1. Introduction Sandwich structures are commonly used in aerospace and auto- mobile structures, since they offer great energy absorption poten- tial and increase the flexural inertia without significant weight penalties. The purpose of the core is to maintain the distance be- tween the laminates and to sustain shear deformations. By varying the core, the thickness and the material of the face sheet of the sandwich structures, it is possible to obtain various properties and desired performance [1–4] . Examples of widely used laminate materials are glass reinforced plastic (GRP) and carbon fiber. There are many wide varieties of core materials currently in use. Among them, honeycomb, foam, balsa and corrugated cores are the most widely used. Usually honeycomb cores are made of aluminum or of composite materials: Nomex, glass thermoplastic or glass-phe- nolic. The other most commonly used core materials are expanded foams, which are often thermoset to achieve reasonably high ther- mal tolerance, though thermoplastic foams and aluminum foam are also used. For the bonding of laminate and core materials, nor- mally two types of adhesive bonding are commonly employed in sandwich construction, i.e., co-curing and secondary bonding.
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Analysis of signals and noise in longitudinal electron beams

Analysis of signals and noise in longitudinal electron beams

However, since the electromagnetic power flow in an infinite parallel-plane geometry is zero, an excitation is not transmitted through the beam by electromagnetic rad[r]

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Taylor vortices versus Taylor columns

Taylor vortices versus Taylor columns

angular velocities, respectively, of the two cylinders (see figure 1). By astute variation of Re, R Ω and the radius ratio η, Maretzke et al. (2014) have been able to catalog the optimal growth and wavenumbers for all three stable regimes. In the course of their survey, they discovered that in most of the quasi-Keplerian regime, transient growth is optimized by perturbations that vary with the azimuthal angle but are independent (or nearly so) of the axial coordinate; see figure 2. The Taylor-Proudman theorem predicts that rapidly rotating flows are axially invariant and, indeed, Maretzke et al. (2014) find that this effect is strongest for larger R Ω , near the solid-body-rotation line. Thus, the
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Mechanics of inflatable fabric beams

Mechanics of inflatable fabric beams

The second section of the paper is devoted to construct inflatable beam finite el- ements able to give accurate values of the displacement field for hyperstatic beams and also for structures made of inflatable beams. For inflatable panels, the com- pliance matrix of a cantilever-inflated panel is the sum of the yarn and beam com- pliances [3]. The stiffness matrix depends on the inflation pressure and is simply obtained by the usual theory of the equilibrium FEM [5]. For tubes problems the effects of large rotations and shear deformation must be added, but the final result [6] is similar to the previous ones. Results given by the tube finite elements are compared to results given by 3D membrane finite elements and to experiments.
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Deflection and failure of steel-supported floors and beams in fire

Deflection and failure of steel-supported floors and beams in fire

For the publisher’s version, please access the DOI link below./ Pour consulter la version de l’éditeur, utilisez le lien DOI ci-dessous. https://doi.org/10.4224/40001473 Access and use of this website and the material on it are subject to the Terms and Conditions set forth at

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Junctions between two plates and a family of beams

Junctions between two plates and a family of beams

18. Le Dret H. Problèmes Variationnels dans les Multi-Domaines: Modélisation des Jonctions et Applications, Research in Applied Mathematics, vol. 19. Masson: Paris; 1991. 19. Blanchard D, Griso G. Junction between a plate and a rod of comparable thickness in nonlinear elasticity. J Elast. 2013;112(2):79-109. 20. Blanchard D, Griso G. Asymptotic behavior of a structure made by a plate and a straight rod. Chinese Ann Math Series B. 2013;34(3):399-434. 21. Cioranescu D, Damlamian A, Griso G. The periodic unfolding method in homogenization. SIAM J Math Anal. 2008;40(4):1585-1620.

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Span Tables for Wood Joists, Rafters and Beams: 1971

Span Tables for Wood Joists, Rafters and Beams: 1971

Recent changes in lumber sizes, allowable stresses, grading rules and grade descriptions have necessitated the recalculation of the span tables for wood joists, rafters and beams u[r]

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