Abstract
Rapid construction, high strength-to-weight ratio as well as elimination of the use of wood formworks and heavy machineries/vehicles offered by cold-formed steel RaBiB (Rapid Building in-box) system can leads to economical and sustainable design in construction industry. The use of cold-formed joints in steel structures can increase the strength of joints significantly as compare to identical hot-rolled joints. However, there is a lack of in-depth study on the cold-formed joints stability for RaBIB system. This issue is making the low reliability in cold-formed steel structures design due to member buckling or lateral instability. The objectives of this research are to identify the stability and reliability issues of cold-formed steel joint in light steel framing, to generate/formulate elementary equations related to stability and reliability impacts and to validate the elementary equations through analytical, numerical and experimental investigations. Numerical analysis with finite element model would be developed for the parametric investigation in order to identify the critical element contributed in the joint failure mode. Analytical study would be carried out for the prediction of strength of proposed joint. Thus, new equations for cold-formed joint would be developed. Several experimental testing are planned to understand physical behaviour of the designed joints and to validate the formulated equations. The research would leads to publication of the findings and proposed equations to be referred to in analysis and design for future development in RaBiB system.
Publication:
Yeong Huei Lee, Cher Siang Tan, Shahrin Mohammad, James B. P. Lim, Ross Johnston. Numerical Study of Joint Behaviour for Top-seat Flange Cleat Connection in Cold-formed Steel Structures. Scientia Iranica Transaction B: Mechanical Engineering. 22(4): 1554-1566, 2015.
Yeong Huei Lee, Cher Siang Tan, Shahrin Mohammad, Mahmood Md. Tahir, Poi Ngian Shek. Review on Cold-formed Steel Connections. The Scientific World Journal, vol. 2014, Article ID 951216, 11 pages, 2014.
