A parametric study of the non-linear geometric behaviour and carrying capacity of 3D asymmetric steel frames

• Type: Article in International Conference Proceedings Book
• Date: 2005

Authors

Cesar, MB (Author) Other; Rui Carneiro de Barros (Author) FEUP

Conference proceedings International

Title: Proceedings of the 10th International Conference on Civil, Structural and Environmental Engineering Computing, Civil-Comp 2005

10th International Conference on Civil, Structural and Environmental Engineering Computing, Civil-Comp 2005

Rome, 30 August 2005 through 2 September 2005

Indexing

Scopus - 2 Citations

Other information

Authenticus ID: P-008-0J6

Abstract (EN): Non-linear P-delta behaviour of three-dimensional frames with plan and elevation asymmetries is studied, using a parametric variation of geometry in plan and a stiffness variation along the height. Some behavioural aspects of a calibration frame have been addressed to ascertain the importance of the nodal rigidity, modelled with laminar elements of the type shell with implicit formulation of thick plate or modelled with elastic stiff springs, in the study and modelling of the geometric nonlinearity and stability of such calibration frame. Eurocode 3 criteria for second order analyses is briefly addressed in connection with the 2D frame classification with respect to sway behaviour; however for 3D structures the calculated carrying capacity is independent of this classification. So a parametric study of the critical load factor of asymmetric three-dimensional frames, un-braced and braced, permits to characterize their carrying capacity with respect to overall structural stability. © 2005 Civil-Comp Press.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 17