A simplified procedure for the assessment of second-order effects in three-dimensional framed structures

• Type: Article in International Conference Proceedings Book
• Date: 2009

Authors

Sousa, AC (Author) Other; Pereira, M (Author) Other; Rui Carneiro de Barros (Author) FEUP

Conference proceedings International

Title: Proceedings of the Twelfth International Conference on Civil Structural and Environmental Engineering Computing

TWELFTH INTERNATIONAL CONFERENCE ON CIVIL, STRUCTURAL AND ENVIRONMENTAL ENGINEERING COMPUTING

Funchal, Madeira, Portugal, 1-4 September 2009

Indexing

Scopus - 0 Citations

Other information

Authenticus ID: P-008-JAV

Abstract (EN): The simplified assessment of second-order effects is usually done in most codes of practice - EC2, EC3, ACI and AISC - by the amplification of first-order moments in a relation between the structural element's axial load and its critical buckling load. Another method for the consideration of such effects is proposed by CEB-FIP's Model Code 90, by the increment due to the presence of vertical load on the deformed structure load is estimated by rotation of the structure due to first-order loads by a direct proportion. This paper presents an extension of the Model Code 90 method to three-dimensional framed structures. After the basic theory is presented, numerical examples of the proposed method are compared with a more accurate nonlinear geometric analysis, testing the validity of the proposed equations and outlining its principal limitations. © Civil-Comp Press, 2009.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 20