Experimental Study on the Effect of Heel Plate Length on the Structural Integrity of Cold-formed Steel Roof TrussesJe Chenn Gan, Jee Hock Lim, Siong Kang Lim and Horng Sheng LinE3S Web Conf., 65 (2018) 08010DOI: https://doi.org/10.1051/e3sconf/20186508010