Ultimate resistances of member-rotated cold-formed high strength steel tubular T-joints under compression loads

Mechanical properties of high strength steels and weld metals at arctic low temperatures

“…Reducing carbon emission and reaching carbon neutrality are the urgent issues to be addressed in construction industry that need the joint efforts from different parties, such as research institutes, manufacturing industries, construction sectors and governments. To struggle toward carbon neutrality, researchers have sought to innovate the high performance construction materials [1][2][3][4][5][6][7][8][9][10][11][12] and structure systems [13][14][15][16][17][18][19][20][21][22][23][24][25][26][27] in order to improve the efficiency of engineering structures. In the meantime, the metallurgical industry has sought to develop advanced manufacturing technologies [28][29][30][31] and new steel tubular section profiles, e.g.…”

Cold‐formed steel T‐joints with semi‐oval hollow section chord: Experimental insight and finite element modelling

“…To mitigate the effect of chord end supports to the stress distribution of the brace-chord junction, the chord length (L0) was designed as the sum of 3 times the chord height (3h0), the brace height (h1), and the length of two steel sitting blocks (180mm). The abovementioned member length design concept has been successfully adopted by previous research studies [24][25][26][27][28]. Longitudinal tensile coupons were wire-cut from the middle of the SOHS flat web, the middle of RHS web with larger depth and the middle of the SHS web at the location with 90 angle from the welding seam.…”

Numerical analysis and design of cold-formed high strength steel RHS X-joints at elevated temperatures

“…However, the lack of adequate research work and design recommendations are the primary reasons hampering the widespread use of high strength structural steels. The authors have conducted a series of experimental investigations [1][2][3][4][5] on HSS rectangular hollow section (RHS) T-and Xjoints. In addition, Pandey et al [6,7] proposed design rules for predicting the static strengths of coldformed S900 and S960 steel grades RHS T-and TF-joints.…”

“…It should be noted that the aforementioned investigations [1][2][3][4][5][6][7][8][9] were carried out to investigate the static behaviour of HSS T-and X-joints at room temperature. To the best of the authors' knowledge, currently, no investigation is available on the static performance of any type of HSS tubular joint at elevated temperatures.…”