Ghassan Werdina

• Salahaddin University-Erbil

Introduction Concrete slabs are critical components in structural applications but are inherently limited by their brittleness and low tensile capacity, which can lead to failure under torsional loads. Traditional steel reinforcement provides some resistance but introduces issues, such as increased weight and susceptibility to corrosion. Carbon Fib...

Introduction The anchorage zone, where the prestressing force is transmitted to the concrete, represents a critical component of prestressed girders. This research investigates the behavior of eccentric anchorage zones in prestressed girders constructed with fiber-reinforced concrete (FRC) using finite element analysis (FEA). The study specifically...

Introduction This study has investigated the behavior and strength of steel fiber-reinforced concrete slabs under torsion using Finite Element Analysis (FEA). The research has focused on the effects of steel fiber volume ratio and reinforcement bar size on the torsional properties of concrete slabs. Methods A 3D solid element model with non-linear...

Background The use of post-tensioning in girders causes high bearing and compressive stresses in the anchorage zone. In this study, the behavior of the anchorage zone and the interaction between the local and general zone are investigated. The variables included different reinforcements for both the local and general zones for a block of two anchor...

Post-tensioning tendons in segmental box girder bridges are usually anchored in very massive diaphragms. This paper presents an analytical investigation of the anchorage zone stresses for an interior pier diaphragm and a rectangular block model (model of diaphragm anchorage zone). The failure load and load-displacement relation for the two cases we...