TY - GEN
T1 - Experimental study on SNCF of welded CHS-CFSHS T-joints under axial loading
AU - Yang, Delei
AU - Tong, Lewei
AU - Zhao, Xiaolin
PY - 2011
Y1 - 2011
N2 - The initiation position can be predicted by studying on strain concentration factors (SNCF) and SNCF distributions. This paper concerns an experimental investigation of SNCF of welded T-joints composed of circular hollow section (CHS) braces and concrete-filled square hollow section (CFSHS) chords under axial loading on the braces with two load cases of tension and compression. Static experiments were performed on eight test specimens designed for considering different non-dimensional geometric parameters and C50 grade concrete. Compared with joints made of CHS-SHS, the experimental results indicate that the CHS-CFSHS T-joints have lower strain concentration factors which may increase fatigue strength. The position of the maximum SNCF is usually located at 00 or 900 of the intersection line between a CHS brace and a CFSHS chord.
AB - The initiation position can be predicted by studying on strain concentration factors (SNCF) and SNCF distributions. This paper concerns an experimental investigation of SNCF of welded T-joints composed of circular hollow section (CHS) braces and concrete-filled square hollow section (CFSHS) chords under axial loading on the braces with two load cases of tension and compression. Static experiments were performed on eight test specimens designed for considering different non-dimensional geometric parameters and C50 grade concrete. Compared with joints made of CHS-SHS, the experimental results indicate that the CHS-CFSHS T-joints have lower strain concentration factors which may increase fatigue strength. The position of the maximum SNCF is usually located at 00 or 900 of the intersection line between a CHS brace and a CFSHS chord.
KW - Concrete-filled tubular joint
KW - Experiment
KW - Hot spot strain
KW - Strain concentration factor
UR - http://www.scopus.com/inward/record.url?scp=78651390719&partnerID=8YFLogxK
U2 - 10.4028/www.scientific.net/AMR.163-167.127
DO - 10.4028/www.scientific.net/AMR.163-167.127
M3 - Conference article published in proceeding or book
AN - SCOPUS:78651390719
SN - 9780878492060
T3 - Advanced Materials Research
SP - 127
EP - 131
BT - Advances in Structures
T2 - 2011 International Conference on Structures and Building Materials, ICSBM 2011
Y2 - 7 January 2011 through 9 January 2011
ER -