TY - JOUR
T1 - Shear performance of SupaCee sections with openings
T2 - Numerical studies
AU - Thirunavukkarasu, Kajaharan
AU - Kanthasamy, Elilarasi
AU - Poologanathan, Keerthan
AU - Tsavdaridis, Konstantinos Daniel
AU - Gatheeshgar, Perampalam
AU - Hareindirasarma, Sivayokesvarasarma
AU - McIntosh, Alex
N1 - Funding Information:
The authors would like to acknowledge the supports provided by the Northumbria University , European research council and The Home Engineers.
PY - 2022/3/1
Y1 - 2022/3/1
N2 - Cold-Formed Steel (CFS) sections provide many design and construction sophistications including lightweight and high strength-to-weight ratio. The SupaCee section was introduced to CFS industry due to its cost effectiveness, enhanced strength, better structural performance and high stiffness. Introduction of SupaCee sections lead to investigations of web crippling, flexural and shear behaviour of the sections. However, structural behaviour of SupaCee sections with web openings has not been addressed to date. Hence, this study intends to analyse the shear behaviour of SupaCee sections with web openings. Previous shear test results of SupaCee sections and Lipped Channel Beam (LCB) sections with openings were validated with developed FE models. An extensive parametric study was accomplished considering various geometric parameters such as depth, yield strength, thickness and web opening ratios. Since the results of the detailed study determined that existing design equations were over conservative, new design equations with reduction factor were proposed to predict the ultimate shear capacity of SupaCee sections with web openings. Moreover, the shear capacities of SupaCee sections were compared with shear capacities of similar dimensioned LCB sections. A web opening ratio of 0.2 is recommended, considering the ability to regain the shear capacity of plain LCB sections, as well as the availability of web openings in order to accommodate the services.
AB - Cold-Formed Steel (CFS) sections provide many design and construction sophistications including lightweight and high strength-to-weight ratio. The SupaCee section was introduced to CFS industry due to its cost effectiveness, enhanced strength, better structural performance and high stiffness. Introduction of SupaCee sections lead to investigations of web crippling, flexural and shear behaviour of the sections. However, structural behaviour of SupaCee sections with web openings has not been addressed to date. Hence, this study intends to analyse the shear behaviour of SupaCee sections with web openings. Previous shear test results of SupaCee sections and Lipped Channel Beam (LCB) sections with openings were validated with developed FE models. An extensive parametric study was accomplished considering various geometric parameters such as depth, yield strength, thickness and web opening ratios. Since the results of the detailed study determined that existing design equations were over conservative, new design equations with reduction factor were proposed to predict the ultimate shear capacity of SupaCee sections with web openings. Moreover, the shear capacities of SupaCee sections were compared with shear capacities of similar dimensioned LCB sections. A web opening ratio of 0.2 is recommended, considering the ability to regain the shear capacity of plain LCB sections, as well as the availability of web openings in order to accommodate the services.
KW - Cold-formed steel
KW - Finite element modelling
KW - Lipped Channel section
KW - Shear reduction factor
KW - Shear strength
KW - SupaCee sections
KW - Web openings
UR - http://www.scopus.com/inward/record.url?scp=85123800458&partnerID=8YFLogxK
U2 - 10.1016/j.jcsr.2022.107142
DO - 10.1016/j.jcsr.2022.107142
M3 - Article
AN - SCOPUS:85123800458
SN - 0143-974X
VL - 190
JO - Journal of Constructional Steel Research
JF - Journal of Constructional Steel Research
M1 - 107142
ER -