Corrugated fold roof deck plates are widely used for roofs in steel building structures, typically connected with puddle welding. These plates are designed to have sufficient strength and stiffness against loads in out-of-plane directions such as wind and snow. Moreover, they have certain capability to resist loads in in-plane direction. In this research, in-plane shear performance of the roof deck plates is evaluated both experimentally and analytically. Detailed FEM models are created for the puddle welding connections. Inelastic behavior including local buckling and rapture of the connections and deck plates are well simulated.
