PSI - Issue 70

Abutu Simon John Smith et al. / Procedia Structural Integrity 70 (2025) 11–18

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• Smith and Xu (2023) equation is capable of predicting the shear capacity of both UHPFRC and UHPFRC-CA beams with minimal deviations from experimental values. • The high accuracy exhibited by Smith and Xu’s (2023) equation was as a result of the inclusion of direct shear factors, indirect shear factors, steel fibre topology and fibre-UHPFRC matrix bond stress in the equation. • The habit of merely modifying existing equations to develop new ones should not be constantly relied upon for use in evaluating a new material with different properties. Rather, researchers should take the pains of using experimental data to develop brand new equations that can be used for analyzing the structural integrity of new materials like UHPFRC members. • The shear capacity equations used in this study is limited to UHPFRC/UHPFRC-CA beams with the following properties: (1) compressive strength of less or equal to 167N/mm 2 . (2) tensile strength of less or equal to 13N/mm 2 . 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