International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 09 Issue: 06 | June 2022
p-ISSN: 2395-0072
www.irjet.net
Solutions to minimize flood damage to Bridges V. T. Hulwane1, Shrijeet M Mali2, Satyajit B. Patil3, Sahil P. Patil4, Prathamesh H. Nikam5 1 Professor,
Department of Civil Engineering, Rajarambapu Institute of Technology, Rajaramngar, India Diploma Student, Department of Civil Engineering, Rajarambapu Institute of Technology, Rajaramngar, India ---------------------------------------------------------------------***-------------------------------------------------------------------- To suggest solutions to minimize flood damage to Abstract – Bridge is a structure that crosses a water body to 2, 3, 4, 5
connect 2 parts of land. These bridges are subjected to heavy damages caused by the floods and the debris the water brings along. With floods being frequent in Southern, Western and South-western parts of Maharahstra. The remotely located bridges in hilly regions are often deprived of maintenance and repairs. These bridges can be the only way of connecting a village to the rest of the world. Hence, through our project we suggest solutions to minimize flood damage to the bridge. Firstly, we suggest the lenticular shape of bridge piers so that water passes without forming vertices. Further we suggest use of steel plates for bridge deck as it requires less time for maintenance. Lastly, we suggest rotating the bridge deck during the floods so that the debris does not get deposited at the bridge and flows away easily.
the bridge.
To suggest solutions to minimize repair time of the bridge.
3. Study Work 3.1) What is the bridge failure? A bridge is constantly subjected to loads applied by the flow of water. This flow dramatically increases at the times of flood. After a certain limit the structure weakens completely and it can no longer hold the force of water. As a result, it the bridge drowns away in water.
Key Words: Bridge, Lenticular shaped piers, Steel plate deck, Scouring, Less damage, Floods. Erosion, Deposition.
1. INTRODUCTION As we know that bridge is a structure built across a water body or valley to connect two parts of land. Observing the flood conditions in 2019, 2020, 2021 in southern, western & south-western part of Maharashtra, we came up with solutions to reduce damage caused by debris & excess water brought by flood. Bridges built over rivers that flood frequently are exposed to damage caused by debris brought by floods. During the post flood period these bridges play a vital role in rescue & relief operations. Why we choose this project ?
3.2) Main causes of Bridge Failure
At remote locations bridges play a very important role as they are the only way of connecting a certain village to the rest of the world. If that bridge is damaged, the connection is lost until the bridge is repaired, which might take weeks or even months. The damage is mostly suffered by the piers and deck of the bridge. Hence, here we have studied the main causes of damage and suggested some solutions in order to reduce them.
2. Objectives
To suggest a shape for pier with minimum scour.
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Impact Factor value: 7.529
Fig -1: Bridge Failure
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A) Scouring: When water passes through the bridge, it comes in contact with the piers. When water hits the piers and passes around the piers, it forms vertices. These vertices don’t do much damage during normal times. But during the floods as the speed of water is high these vertices cause heavy erosion of structural members as well as the foundation bed. This action of erosion due to formation of vertices is called as Scouring. Scouring weakens the structure and leads to failure
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