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
Analysis & Design of Foot Over Bridge Using Cold Formed Light Gauge Section Omkar S. Komawar1, Prof. Sonali C. Patil2 1M. Tech Student, Structural and Construction Engineering Department, Ballarpur Institute of Technology,
Maharashtra, India
2Assistant Professor, Structural and Construction Engineering Department, Ballarpur Institute of Technology,
Maharashtra, India ---------------------------------------------------------------------***--------------------------------------------------------------------Abstract - A foot over bridge is a bridge designed for pedestrians. They are located across roads to let pedestrians cross safely without disturbing the traffic. Nowadays traffic is increasing day by day and the speed of vehicle. So, the pedestrian faces the problem to cross the road due to heavy traffic, hence there is need of safety crossings therefore the foot over bridge shall be constructed. In present practice hot rolled steel is used but cold formed steels are harder and stronger than hot rolled steel. Cold formed steel is a light gauge steel used to make construction processes smoother and products stronger. Cold formed steel is not heavy, having more strength and durability. Key Words: Cold Formed Steel, Hot rolled steel, Light gauge steel.
Fig. No. 1. Lattice Type Truss Pedestrian Bridge
1.INTRODUCTION
1.1 Hot rolled steel sections
A pedestrian bridge is a structure designed specifically for pedestrians to cross over obstacles such as roads, rivers, railways, or other barriers safely and conveniently. These bridges can vary greatly in design, size, and materials used, depending on factors such as location, purpose, and budget.
Hot-rolled steel sections refer to structural steel components that are shaped through the hot rolling process. This manufacturing method involves heating steel billets or slabs to high temperatures and passing them through rollers to achieve the desired shape. The hot rolling process allows for the production of a wide range of steel sections with various profiles and dimensions, making it a versatile and widely used method in the construction and manufacturing industries.
Pedestrian bridges are essential components of urban planning and infrastructure, fostering pedestrian-friendly environments and encouraging sustainable modes of transportation. They play a crucial role in enhancing mobility, promoting physical activity, and creating inviting public spaces. Additionally, these bridges contribute to the overall safety of pedestrians by providing designated pathways away from vehicular traffic.
Here steel gets solidified but it is never allowed to cool down completely. The hot steel then passes through number of rollers that squeezes the material into desired crosssectional shape & size. Rolling the steel while it is still hot allowing it to be deformed with no resulting loss in ductility, as would be in the case of cold formed steel sections during the rolling process; the member goes on increasing in length, which are cut to standard lengths which are subsequently cut to the length required for particular structure.
In this introduction, we will explore the diverse facets of pedestrian bridges, from their engineering and architectural significance to their impact on community well-being and connectivity. As integral elements of the built environment, pedestrian bridges exemplify the harmonious intersection of functionality, safety, and design, enriching the urban fabric and creating pathways for people to connect and explore their surroundings.
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1.2. Cold formed steel sections Cold-formed steel sections are structural members manufactured by cold working processes such as rolling or pressing from steel sheets or strips at room temperature. Unlike hot-rolled steel sections, which are formed while the steel is hot and ductile, cold-formed steel sections are
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