Determining Punching Shear Strength and Performance of Tubular Joints Models

This report presents the integrated progress of the study on the effect of types of
tubular connections onto the punching shear capacity. In various cases, punching
shear failure is the common steel jacket structure failure factor. This project studies
the association of the connection types as the main parameter to the punching shears
capacity of the joints. The scope of the project is extended to study the effects of
brace-chord angles onto the joint performance and the economic perspective of joints
fabrications, SACS modeling and simulations were implemented to obtain the
parametric analysis of the joints behavior and the ultimate strength of the joints.
Through this study, types of joints that are superior to punching shear stress have
been identified. The study has also established the critical brace-chord angle regions
and the relationship between the chord stresses and the punching shear strength. The
economic benefits of joint optimization are explicated through the fabrication cost
analysis. Further extensive study is recommended to indicate other parameters
influencing the strength behavior of the joint models.