TY - GEN
T1 - Structural Behaviour of Cold-Formed Steel Built-Up Beams
AU - Guru Prathap Reddy, V.
AU - Selvaraj, Sivaganesh
AU - Madhavan, Mahendrakumar
N1 - Publisher Copyright:
© 2024, Springer Nature Singapore Pte Ltd.
PY - 2023/8/17
Y1 - 2023/8/17
N2 - Cold-Formed Steel (CFS) built-up beams are used widely in the construction industry. In the current study, an experimental investigation of simply supported built-up beams with intermediate web stiffeners was carried out under both three-point and four-point bending. The built-up sections were assembled from press-braked sigma-shaped open sections connected back-to-back and front-to-front by spot welding at flanges to form I-sections and hollow tubular sections respectively. A total of 30 specimens comprising of both I and hollow sections for various beam lengths and intermediate connection spacing were tested. The observed failure modes and the obtained moment capacities from experiments are presented along with a comparison of moment capacities predicted using the North American Specification’s Direct Strength Method (DSM). The findings indicate that the AISI’s DSM method of moment calculations was found to be conservative for few specimens and unconservative for the majority of the test specimens.
AB - Cold-Formed Steel (CFS) built-up beams are used widely in the construction industry. In the current study, an experimental investigation of simply supported built-up beams with intermediate web stiffeners was carried out under both three-point and four-point bending. The built-up sections were assembled from press-braked sigma-shaped open sections connected back-to-back and front-to-front by spot welding at flanges to form I-sections and hollow tubular sections respectively. A total of 30 specimens comprising of both I and hollow sections for various beam lengths and intermediate connection spacing were tested. The observed failure modes and the obtained moment capacities from experiments are presented along with a comparison of moment capacities predicted using the North American Specification’s Direct Strength Method (DSM). The findings indicate that the AISI’s DSM method of moment calculations was found to be conservative for few specimens and unconservative for the majority of the test specimens.
KW - Built-up sections
KW - Cold-formed steel
KW - Design method
KW - Experimental investigation
KW - Ultimate moment capacity
UR - http://www.scopus.com/inward/record.url?scp=85172005822&partnerID=8YFLogxK
U2 - 10.1007/978-981-19-9390-9_26
DO - 10.1007/978-981-19-9390-9_26
M3 - Conference article published in proceeding or book
AN - SCOPUS:85172005822
SN - 9789811993893
T3 - Lecture Notes in Civil Engineering
SP - 321
EP - 330
BT - Proceedings of the Indian Structural Steel Conference 2020 (Vol. 1) - ISSC 2020
A2 - Madhavan, Mahendrakumar
A2 - Davidson, James S.
A2 - Shanmugam, N. Elumalai
A2 - Shanmugam, N. Elumalai
PB - Springer Science and Business Media Deutschland GmbH
T2 - Proceedings of the Indian Structural Steel Conference 2020 (Vol. 1) - ISSC 2020
Y2 - 25 March 2020 through 27 March 2020
ER -