The Continuous Strength Method for the design of stainless steel hollow section beam-columns

The Continuous Strength Method (CSM) is a deformation based design approach that provides accurate cross-section resistance predictions by making rational allowance for the interaction between cross-section elements, the partial spread of plasticity and the beneficial effects of strain hardening. The CSM can be used in conjunction with advanced analysis for the design of members and frames, but, for hand calculations, member-level stability checks are currently limited to stainless steel hollow section columns failing by flexural buckling. Extension to the design of stainless steel members subjected to combined compression and bending moment is presented in this paper. The analysis is based on numerical results and existing experimental data collected from the literature on stainless steel hollow section members, including members with stocky and slender cross-sections. Comparisons demonstrate that the adoption of the CSM design equations in conjunction with both current and revised interaction factors considerably improves the accuracy of beam-column capacity predictions for members with stocky cross-sections. The analysis on beam-columns with slender sections shows that similar resistance predictions are obtained using Eurocode 3 and the CSM. The reliability of the proposed approach is demonstrated through statistical analyses performed in accordance with EN1990

Numerical analysis of the behaviour of stainless steel cellular beam in fire

This paper appeared in a special Issue: Proceedings of Nordic Steel 201

Material and local buckling response of ferritic stainless steel sections

Research Fund for Coal and Steel, Ministerio de Ciencia e Innovació

Materials, procés i tècnica en la realització d'una pintura a l'oli sobre tela per capes representant un arbre en flor.

This short report on the creating of a painting seeks to describe the main technique employed: in addition to detailing the materials used, the specific technique employed and the process and order in which the painting was accomplished, some observations and references are included for the purpose of documenting the conceptual and procedural development of the same

The continuous strength method for the design of stainless steel hollow section columns

The Continuous Strength Method (CSM) provides accurate resistance predictions for both stocky and slender stainless steel cross-sections; in the case of the former, allowance is made for the beneficial effects of strain hardening, while for the latter, design is simplified by the avoidance of effective width calculations. Although the CSM strain limits can be used in conjunction with advanced analysis for the stability design of members, for hand calculations, the method is currently limited to the determination of cross-sectional resistance only, i.e. member buckling resistance is not covered. To address this limitation, extension of the CSM to the design of stainless steel tubular section columns is presented herein. The proposed approach is based on the traditional Ayrton-Perry formulation, but features enhanced CSM cross-section resistances and a generalized imperfection parameter that is a function of cross-section slenderness. The value of the imperfection parameter increases as the slenderness of the cross-section reduces to compensate for the detrimental effect of plasticity on member stability that is not directly captured in the elastic/first yield Ayrton-Perry approach. The accuracy of the proposed approach is assessed against numerical results generated in the current study and existing experimental results collected from the literature. The presented comparisons show that the CSM provides consistently more accurate member buckling resistance predictions than the current EN 1993-1-4 design rules for all stainless steel grades. The reliability of the proposed approach is demonstrated through statistical analyses performed in accordance with EN 1990. Finally, the paper presents a framework through which the proposed approach can be developed for other cross-section types and materials

Comportamiento térmico de presas de hormigón en servicio

Este trabajo se enmarca en el ámbito de las presas de hormigón en fase de explotación y, dentro de este ámbito, se centra en el análisis de la respuesta térmica de la presa frente a la actuación de la acción térmica ambiental

Modelaçao numérica da encurvadura lateral de vigas I em aço inoxidável à temperature ambiente e em situaçao de incêndio - comparaçao com o Eurocòdigo

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