The Influence of Skew Angles on Prestressed Bridges
Chirag Kedare1, Roshni John2
1Chirag Kedare, Department of Civil Engineering, Saraswati College of Engineering, Kharghar (Maharashtra), India.
2Prof. Roshni John, Department of Civil Engineering, Saraswati College of Engineering, Kharghar (Maharashtra), India.
Manuscript received on 23 April 2025 | First Revised Manuscript received on 27 April 2025 | Second Revised Manuscript received on 06 May 2025 | Manuscript Accepted on 15 May 2025 | Manuscript published on 30 May 2025 | PP: 41-49 | Volume-14 Issue-1, May 2025 | Retrieval Number: 100.1/ijrte.A824014010525 | DOI: 10.35940/ijrte.A8240.14010525
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: Prestressed concrete bridges are crucial in modern infrastructure due to their high durability, low maintenance requirements, and superior load-carrying capacity. However, skew bridges, which feature a non-perpendicular alignment with traffic flow, pose significant challenges in analysis and design. This study presents a comprehensive parametric investigation into the behaviour of prestressed skew bridges to enhance structural understanding and optimize design strategies. Advanced finite element techniques are utilized to analyse the effects of prestressing forces, material properties, and geometric parameters on skew bridges. The study evaluates key structural responses, including bending moments, shear forces, torsional effects, and deflections, under various loading conditions such as dead loads, moving loads, and prestressing loads, considering relevant IRC load combinations, including seismic effects. This research finds fifteen prestressed skew bridge models with varying spans and skew angles between 20° and 50°, analysed using MIDAS Civil software. Comparative results highlight the influence of skew angles on structural performance. The findings suggest that increased skewness significantly impacts torsional behaviour and bending moment distribution. With advancements in computational tools, precise estimation of structural responses is now possible, providing engineers with better insight into the design and analysis of prestressed skew bridges.
Keywords: PSC-Prestressed Concrete, Skew Bridges, Finite Element Analysis, Prestressing Forces, Material Properties, Bending Moments, Shear Forces, Torsional Effects, Displacement, IRC Loading.
Scope of the Article: Recent Engineering & Technology