A methodology for evaluating the fracture width of a notched RC multiple-layer flat slab under cyclic loading
Nawir Rasidi, Taufiq Rochman
TL;DR
This paper presents a new method to evaluate crack width in notched reinforced concrete slabs under cyclic loading, improving predictions and structural durability.
Contribution
The study introduces a novel methodology for assessing crack width in composite RC slabs under fatigue, incorporating tension stiffening effects.
Findings
Composite slabs show controlled crack propagation and improved resistance under cyclic loading.
The model aligns with fracture mechanics standards and demonstrates method accuracy through validation.
The approach effectively accounts for tension stiffening effects in crack width prediction.
Abstract
This paper introduces an innovative method for assessing crack width in notched reinforced concrete (RC) slabs under cyclic loads, considering both precast and in-situ layers in composite slab configurations. The study addresses gaps in current research on crack behaviour under fatigue, providing a method that evaluates stress distribution and crack spacing around flexural notches. By employing empirical curvature values and comparing predicted crack widths with experimental data and fracture mechanics standards, this approach accounts effectively for tension stiffening effects. The results reveal that composite slabs exhibit controlled crack propagation and improved resistance under cyclic loading, demonstrating the effectiveness of the composite action. This model not only bridges the gap between theory and practical application in crack width prediction but also contributes to…
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Taxonomy
TopicsStructural Behavior of Reinforced Concrete · Concrete Corrosion and Durability · Innovative concrete reinforcement materials