Repozytorium publikacji - Politechnika Gdańska

The present paper is devoted to the numerical investigations of stability of a truss under upward wind load. The truss is braced at its the upper cord. A structural variant including lateral braces, or lateral and torsional braces is considered. The research presents the problems of linear buckling and non-linear static analysis of the truss shell and beam model with geometric and material non-linearity are presented. The initial imperfections were assumed in the form of arch curvature of the compressed bottom chord due to EC3 requirements. As a results the truss buckling and limit load were found related to the truss bracing stiffness. The threshold bracing condition was obtained necessary to provide maximum buckling resistance of the truss.

Autorzy

• dr inż. Marcin Krajewski link otwiera się w nowej karcie ,
• dr hab. inż. Piotr Iwicki link otwiera się w nowej karcie