In Part 01, we explored the challenges associated with utilizing Prokon’s composite design packages, particularly in navigating the complexities of the Eurocode 4 standards. From specifying the Effective Width to understanding the intricacies of cross-section calculations, users face hurdles in optimizing their composite designs effectively. Now, in Part 02, we delve deeper into the practical application of these concepts within Prokon’s composite modules.

Within the Continuous Beam module, we experimented with various Effective Width values and observed minimal impact on design. Surprisingly, altering the value did not affect the calculated number of shear connectors, but it did lead to the failure of the Hogging converged check under certain conditions.

Upon closer examination of the Output, changes in the Effective Width value resulted in noticeable shifts in the position of the Plastic Neutral Axis (P.N.A), SAGGING STRESS BLOCK Lever Arm (Z_c), and HOGGING STRESS BLOCK Lever Arm (Z_a,t) values. These adjustments likely influence the effectiveness of the concrete slab and steel beam reinforcement, depending on the P.N.A’s position. A “deeper” P.N.A can intersect the beam’s flange or web, potentially making it an even more critical design component. Notably, a smaller Effective Width value resulted in a “deeper” P.N.A measured from the top of the concrete slab.

Part 03 will further investigate these effects to provide readers with a deeper understanding and greater confidence in approaching this parameter.

NB – The above interpretation serves as a guide and should be used at your own risk.

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