Jordan Journal of Civil Engineering

Numerical Investigation on the Moment-Rotation Relationship of High-Strength Steel Semi-Rigid Connections


Hashem Al Hendi; Mohammad Adeeb Mahmoud;


The significance of this parametric study initiates from the need for further understanding of the behaviour of semi-rigid connections with high-strength steel components. This research attempted to gain a qualitative understanding of the influence of the material properties on the response of three types of semi-rigid connections: flush end-plate, top and seat angle and top and seat with double web angles. Hence, ABAQUS (v.6.17) software was used to develop three-dimensional (3-D) FE models. The FE models with different parameters drawn from previous experimental studies were generated in order to evaluate the effectiveness of this approach. Issues related to the stiffness, strength, sources of deformability, rotational capacity and failure mechanisms of joints were emphasized. In most cases, the use of HSS angles or HSS end-plate led to significant increase in moment capacity. Higher initial stiffness values were observed, especially when thick angles and plates were used. However, a decrease in rotational capacity of HSS joints was encountered.


High-strength steel, Finite element analysis, Moment–rotation curve, Flush endplate, Top and seat angle, Top and seat with double web angles