International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 11 Issue: 04 | Apr 2024
p-ISSN: 2395-0072
www.irjet.net
Preliminary Design and Drawing of Widening of an Existing Road Bridge from 2 to 3 Lane Mitaali Jayant Gilbile1, Vivek Sangramsingh Ghatage2, Gaurav Sampat Patil3, Pradip Hindurao Patil4, Shweta Shivaji Nikam5 1Assistant Professor, Department of Civil Engineering, D. Y. Patil Technical Campus, Talsande, Kolhapur 2,3,4,5 UG Students, Department of Civil Engineering, D. Y. Patil Technical Campus, Talsande, Kolhapur
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Abstract - The growth in India's population and economy
National Highway 48 has two lanes, with no sidewalk for pedestrians. Due to the increase in traffic volume, this bridge is now inadequate to meet the current traffic demand. Therefore, it is necessary to widen this bridge from two lanes to three lanes and include provision for a pedestrian sidewalk.
has increased traffic volume, straining roads and bridges. Adequate infrastructure is vital for attracting investment. Many bridges can't handle current traffic and engineers must decide between replacing or widening them. Widening is often chosen for its cost-effectiveness and minimal traffic disruption. This study focuses on a functionally obsolete bridge on National Highway 48 over the Panchganga river near Kolhapur, India. It proposes widening the two-lane bridge to three lanes with a sidewalk. Various widening and strengthening methods are reviewed, and an optimal technique is suggested based on data analysis and visual inspection. Preliminary designs and drawings for the bridge modification are included.
1.2 Aim Engineers face complex decisions in projects, balancing regulations with what best fits project expectations. Experience plays a key role, but unforeseen factors can arise. To make informed choices, multiple preliminary designs are often explored, saving time and costs, especially in large projects. This project focuses on widening an existing road bridge, specifically the Panchganga Road bridge, Kolhapur, India built in 2002. The original bridge has two lanes with no sidewalk. The goal is to widen it to three lanes for vehicles and include a sidewalk. This case study aims to design a technical solution for this expansion.
Key Words: Preliminary design, visual inspection, extra piers
1.INTRODUCTION The National Highway 4 (NH 4), now renumbered as National Highway 48, was a major route connecting Mumbai, Pune, Bangalore, and Chennai. As part of the Golden Quadrilateral project, NH 48 was expanded to 4 lanes by August 2011. Currently, an upgrade to 6 lanes is in progress and expected to finish by 2025.Our project focuses on road bridges in Package 1 (Kagal to Peth) of the Kagal-Satara section of NH 48, specifically those over the Panchganga and Warana Rivers. The Panchganga bridge has 2 lanes in the northbound direction and 3 lanes in the southbound direction, while the Warana bridge follows the same pattern. The proposed plan of concerned authority for existing bridges is to maintain the southbound bridges at 3 lanes but replace the northbound bridges with new 3-lane structures. However, these northbound bridges are functionally obsolete, suggesting a widening approach instead of reconstruction. This study aims to identify the most suitable widening technique for these bridges to optimize costeffectiveness.
2.OBJECTIVES 1.To know the current scenario and future plan of existing road bridges. 2.To study various techniques can be used to widen an existing road bridge. 3.To carry out visual inspection and collect necessary information of actual site which is under consideration and provide an optimal widening technique for the existing bridge. 4.To design the solution that will be preliminary and should be sufficient to ensure that the solution is realistic and solve the problem of widening.
3.METHODOLOGY 1.Literature review- Review of the works done for the widening of existing bridges. 2.Study of techniques- A study of widening techniques that can be used for existing bridges. 3.Comparison of techniques- The difference between widening techniques.
1.1 Problem statement The existing road bridge located in the northbound direction over the Panchganga River near Kolhapur city on
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