Miroslav Rosmanit

FEM Modeling of End-Plate Assembling Bolt Connections of CHS Profiles

Two different numerical models of the common truss-type assembling joints of CHS (circular hollow section) profiles were created – simplified model of joint and more accurate model which corresponds to the experimental specimens. Models with different end-plate thicknesses and consequently with different failure modes were solved. The results obtained from numerical models were compared with the analytical solution of such joints using the Eurocode procedure recommended in EN 1993-1-8. These results are planned to be verified and further developed based on experimental results.

Numerical Models of End-Plate Assembling Bolt Connection of Angle Profiles

The aim of this work was to create numerical models of the common truss-type assembling joints of L-profiles. Two different models were created – basic (simplified) model of joint and more accurate model which corresponds to the experimental specimens in preparation. Models with different end-plate thicknesses and consequently with different failure modes were solved. The results obtained from numerical models were compared with the analytical solution of such joints using the Eurocode procedure recommended in EN 1993-1-8. These results are planned to be verified and further developed based on planned experiments.

RECOMMENDATIONS FOR NUMERICAL MODELING AND ANALYTICAL ASSESSMENT OF A PLANAR STEEL CHS JOINT

Abstract The subject of this paper is to determine the load-bearing capacity of the truss-type CHS (circular hollow section) joint which is beyond the scope of use of the EN 1993-1-8 and thus standardized formulas for calculations of joints strength cannot be applied. Assessment of that joint is performed by using the numerical modeling in ANSYS program and the analytical method recommended in the CIDECT (Comité International pour le Développement et l’Étude de la Construction Tubulaire) publication. The results from both methods are then compared. This paper contains recommendations for the creation of the FEM model and for calculation of load-bearing capacity of the CHS joint.

The Possibility of Using Numerical Modeling for Assessment of Welded Joint Load-Bearing Capacity / Možnost Využití Numerického Modelování Pro Posouzení Únosnosti Svařovaného Styčníku

Abstract The subject of this paper the practical example of the steel lattice structure was used. Specifically, the joint consisting of H-profile bottom chord and a RHS (Rectangular Hollow Section) brace members has been elected. This particular joint has an exceptional feature which is a deviation from the geometric conditions required by Eurocode. The aim is to create a numerical model that will adequately reflect the actual behavior of this type of joint as well as comparison of such behavior with that expected on the basis of assessment according to standardized formulas. Abstrakt Jako námět této práce byl použit příklad ocelové příhradové konstrukce z praxe. Konkrétně byl zvolen styčník dolního pásu z HEA profilu a RHS mezipásových prutů, který je výjimečný tím, že se odchyluje od geometrických podmínek udávaných Eurokódem. Cílem práce je vytvoření numerického modelu, který bude dostatečně vystihovat skutečné chování takového styčníku a následné porovnání tohoto chování s tím, které je možné očekávat na základě posouzení dle normových vztahů.