Location

Saint Louis, Missouri

Session Start Date

10-18-1994

Abstract

Experimental investigations conducted on the structural behaviour and ultimate load carrying capacity of cold-formed sigma purlins are reported. Three different purlin systems, i.e. the double spanning, the sleeved and the overlap system, were investigated. In addition to the full- scale tests on 2-span purlin - sheeting system with screw fastening and with continuous, sleeved and overlapped central supports, tests on single span purlins were also conducted for finding out bending moment and shear capacity values at the central support of a multiple span sigma purlin. Analytical considerations for modelling the cross-sectional behaviour of the sigma purlin itself and the local deformation of the connection at supports are carried out mainly according to the draft of Eurocode 3 (Part 1.3). Test results are used to compare and to confirm the calculation models based both upon elastic (Eurocode 3) and plastic behaviour of the purlin. A new plastic design proposal is presented/or multiple span sigma purlins.

Department(s)

Civil, Architectural and Environmental Engineering

Research Center/Lab(s)

Wei-Wen Yu Center for Cold-Formed Steel Structures

Meeting Name

12th International Specialty Conference on Cold-Formed Steel Structures

Publisher

University of Missouri--Rolla

Publication Date

10-18-1994

Document Version

Final Version

Rights

© 1994 University of Missouri--Rolla, All rights reserved.

Document Type

Article - Conference proceedings

File Type

text

Language

English

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Oct 18th, 12:00 AM

Study on the Load-bearing Capacity of Cold-formed Sigma Purlins

Saint Louis, Missouri

Experimental investigations conducted on the structural behaviour and ultimate load carrying capacity of cold-formed sigma purlins are reported. Three different purlin systems, i.e. the double spanning, the sleeved and the overlap system, were investigated. In addition to the full- scale tests on 2-span purlin - sheeting system with screw fastening and with continuous, sleeved and overlapped central supports, tests on single span purlins were also conducted for finding out bending moment and shear capacity values at the central support of a multiple span sigma purlin. Analytical considerations for modelling the cross-sectional behaviour of the sigma purlin itself and the local deformation of the connection at supports are carried out mainly according to the draft of Eurocode 3 (Part 1.3). Test results are used to compare and to confirm the calculation models based both upon elastic (Eurocode 3) and plastic behaviour of the purlin. A new plastic design proposal is presented/or multiple span sigma purlins.