5-7 December 2018 - Hong Kong, China

CONFERENCE PAPERS

Ninth International Conference on Advances in Steel Structures (ICASS 2018)


INFLUENCE OF CHORD STRESSES ON THE STRENGTH OF RHS JOINTS

 

Flávio F. Mendes 1, Luciano R. O. de Lima 2,* Pedro C. G. da S. Vellasco2, Monique C. Rodrigues2 and Luis F. C. Neves 3

1 PGECIV – Civil Engineering Post-Graduate Program, UERJ – State University of Rio de Janeiro, Brazil

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2 Structural Engineering Department, UERJ - State University of Rio de Janeiro, Brazil

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3 INESCC, Civil Engineering Department - University of Coimbra, Portugal

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DOI:10.18057/ICASS2018.P.024

ABSTRACT:

Extensive work has been performed to address the technological and design issues of tubular joints in the last decades. Several international design codes and recommendations explicitly cover the design of tubular joints such as Eurocode 3, ISO14346 and NBR16239. Experimental results on the influence of the chord stresses over the brace load capacity have been published in the literature. These results showed that compressive chord stresses considerably reduce the joint resistance. However, very few studies indicated the same reduction in load carrying capacity for joints under the action of chord tensile forces. To investigate this influence, an experimental program comprising thirteen tests was carried out, i.e. tests without chord axial forces; tests with compressive chord forces; and other ones with tensile chord forces. The obtained results were compared to the design provisions. This assessment indicated that the results obtained for chords without axial forces and with compressive forces, in experiments were safe when compared to the values predicted by all the investigated standards. On the other hand, the results associated with cases with chord tension forces proved to be conservative.

Keywords:

Tubular joints; Experimental analysis; Chord stress influence; Design codes.

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IMPORTANT DATES

First call for paper:
1 January 2018
Abstract submission: (CLOSED)
1 April 2018
Notification of abstract acceptance:
on or before 16 April 2018 
Full paper submission: 
15 July 2018
Online Registration Begins:
1 August 2018
Notification of full paper acceptance:
31 August 2018
Early bird registration:
on or before 7 September 2018
Online Registration Closes:
31 October 2018
Announcement of programme:
1 November 2018
ICASS2018 December 05, 2018 08:00 AM