Aluminium structures exposed to fire conditions. An overview

This paper gives an overview of the structural behaviour and design of aluminium structures exposed to fire conditions. Two design approaches are elaborated: the "traditional" approach that is mainly based on conventions and the fire safety engineering approach that is more based on physics. For the traditional approach, equations for the...

Effective width approach for local buckling of aluminium sections exposed to fire

Design rules for lateral torsional buckling of channel sections subject to web loading

Channel sections are widely used in practice as beams. However, design rules for eccentrically loaded (not through shear centre) beams with channel cross-sections are not available in Eurocode 3. In this paper five proposed design rules are summarised, explained and their validity is checked by Finite Element analyses. The design rules yield...

Influence of concrete slabs on lateral torsional buckling of steel beams

The use of pre-cast concrete floor slabs in steel framed structures is quite common. In the de-sign of the steel beams, the lateral restraining effect of the pre-cast concrete slab is normally safely neglected. However, the concrete slab will provide some horizontal restraint, even without special provisions such as dowels being present. It may...

Cross-sectional stability of aluminium extrusions with arbitrary cross-sectional shapes - experimental and numerical research

Aluminium extrusions applied in daily practice are often thin-walled with complex cross-sectional shapes. These shapes are based on a variety of demands that are in general non-structural. As a result, several types of instability may occur, including overall and cross-sectional instability modes as well as mode interactions. Research on overall...

FEM simulations of lateral torsional buckling experiments on channel sections loaded in bending

The lateral torsional buckling behaviour of hot rolled channel sections subjected to bending is studied in an overall project. The final objective of this project is to develop a design method. This paper concentrates on the validation of the FEM model against the experiments. For channel sections loaded through the shear centre (centric loading...

Experimental work and FEM-calculations on the interaction of local buckling modes in aluminium sections

The extrusion manufacturing process of aluminium allows protiles with a large variety of cross-sections. If these are thin-walled. cross-sectional instability miszht occur, which is caused by interaction of local buckling modes of connecting plate elements. To investigate this phenomenon. an extensive set of experiments is performed on uniformly...

Toetsingsregels voor stalen bogen (2)

De Nederlandse normen kennen geen speciale toetsingsregels om na te gaan of een stalen boog bij een gegeven belasting voldoende sterk, stijf en stabiel is. Voor de technische commissie 'Stabiliteit' van het Staalbouwkundig Genootschap was dat in 1996 reden een onderzoek te starten naar het constructieve gedrag van bogen. Het eerste resultaat...

Design of aluminium cross-sections with complex shapes

This paper deals with the design process of aluminium cross-sections with complex shapes in

Valkuilen in de TGB staal. Toelichting op de stabiliteit van kolommen

De nieuwe TGB Staal is bedoeld om een constructie te toetsen. Toch hanteren veel constructeurs de eenheidstoets uit de TGB als hulpmiddel bij het ontwerpen. In dat geval is oplettendheid geboden. omdat de belasting niet altijd lineair in de toetsingsregel staat. De eenheidstoets geeft dan een vertekend beeld van zowel de benuttingsgraad als van...

Comparison of weld strength acccording to Eurocode no.3 with weld strength according to national codes. Part A

Evaluation of Test Results on Welded Connections in order to obtain Strength Functions and Suitable Model Factors. Part A: Results. Part B: Evaluations. Eurocode 3