The paper summarises a study aimed at increasing the reliability of two European approaches that can be alternatively adopted for designing thin-walled cold-formed (TWCF) steel members. Performance of more than 230 compressed TWCF members tested in laboratory in the framework of 13 experimental studies, is predicted by adopting two design approaches admitted by the European standards. Being the assessed load carrying capacity sometimes significantly greater than the experimental one, suitable safety factors have been consequently calibrated and proposed for each cross-section type, to be directly adopted in routine design in order to better match the requirements associated with limit state philosophy. Finally, the strength of additional TWCF beamcolumn specimens has been predicted to assess the efficiency of the proposed coefficients for practical cases frequently encountered in routine design.
A PROPOSAL TO IMPROVE THE TWCF STEEL MEMBER EUROPEAN DESIGN APPROACHES
C. Bernuzzi;M. Simoncelli
2018-01-01
Abstract
The paper summarises a study aimed at increasing the reliability of two European approaches that can be alternatively adopted for designing thin-walled cold-formed (TWCF) steel members. Performance of more than 230 compressed TWCF members tested in laboratory in the framework of 13 experimental studies, is predicted by adopting two design approaches admitted by the European standards. Being the assessed load carrying capacity sometimes significantly greater than the experimental one, suitable safety factors have been consequently calibrated and proposed for each cross-section type, to be directly adopted in routine design in order to better match the requirements associated with limit state philosophy. Finally, the strength of additional TWCF beamcolumn specimens has been predicted to assess the efficiency of the proposed coefficients for practical cases frequently encountered in routine design.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
