TY - GEN
T1 - Experimental study on cold-formed steel semi-oval hollow section columns
AU - Chen, M. T.
AU - Young, B.
PY - 2018/1/1
Y1 - 2018/1/1
N2 - The semi-oval hollow section, which is composed of one semi-circular flange, one flat flange and two flat web plates, is a recently emerged cross-section type. Currently, there is no structural design guidance for this cross-section due to the lack of investigation. This paper herein presents the experimental investigation of cold-formed steel semi-oval hollow section columns. The test program comprised tensile coupon tests, geometric imperfection measurements, five fixed-ended stub column tests and nine pin-ended short column tests. The ultimate load-carrying capacities, full load-displacement responses and failure modes of the test specimens are presented. Since the current design rules do not cover the semi-oval hollow sections presented in this study, the experimental results were only compared against design strengths predicted by the Direct Strength Method, in which the design equations were originally calibrated by cold-formed steel open sections with flat elements, to assess its applicability to the semi-oval hollow section columns.
AB - The semi-oval hollow section, which is composed of one semi-circular flange, one flat flange and two flat web plates, is a recently emerged cross-section type. Currently, there is no structural design guidance for this cross-section due to the lack of investigation. This paper herein presents the experimental investigation of cold-formed steel semi-oval hollow section columns. The test program comprised tensile coupon tests, geometric imperfection measurements, five fixed-ended stub column tests and nine pin-ended short column tests. The ultimate load-carrying capacities, full load-displacement responses and failure modes of the test specimens are presented. Since the current design rules do not cover the semi-oval hollow sections presented in this study, the experimental results were only compared against design strengths predicted by the Direct Strength Method, in which the design equations were originally calibrated by cold-formed steel open sections with flat elements, to assess its applicability to the semi-oval hollow section columns.
UR - http://www.scopus.com/inward/record.url?scp=85061295156&partnerID=8YFLogxK
U2 - 10.1201/9781351210843-69
DO - 10.1201/9781351210843-69
M3 - Conference article published in proceeding or book
AN - SCOPUS:85061295156
SN - 9780815381341
T3 - Tubular Structures XVI - Proceedings of the 16th International Symposium on Tubular Structures, ISTS 2017
SP - 549
EP - 556
BT - Tubular Structures XVI - Proceedings of the 16th International Symposium on Tubular Structures, ISTS 2017
A2 - Heidarpour, Amin
A2 - Zhao, Xiao-Ling
PB - CRC Press/Balkema
T2 - 16th International Symposium on Tubular Structures, ISTS 2017
Y2 - 4 December 2017 through 6 December 2017
ER -