International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 09 Issue: 05 | May 2022
p-ISSN: 2395-0072
www.irjet.net
A Review on Progressive Collapse of the Bridge Sagar J. Dhakne 1, Dr. Atul B. Pujari 2 1Post
graduate student Department of Civil Engineering, KJ College of Engineering & Management Research, Pune 411048, India 2Associate Professor Department of civil engineering, KJ College of Engineering & Management Research, Pune411048, India ---------------------------------------------------------------------***---------------------------------------------------------------------
Abstract - A bridge is a structure that is often built on top
wrap analysis is intended to reveal structural capacity or unusual load resistance.
a type of obstacle for a water area, valley, or road. Many the purpose of the bridge is to provide a passage over these bars. Bridge failure can also be natural or human an error that leads to further deterioration resulting in loss damage to health and property. Continuous wrapping is understandable
1.2 CAUSES OF PROGRESSIVE COLLAPSE In the history of bridges, dozens of bridges collapsed as a result for various reasons. In particular there are two main reasons which are natural and man-made features. Natural features floods, earthquakes, landslides, landslides, storms, and hurricanes, which exacerbate these natural disasters they are inevitable which can cause great damage to structure.
such as when a key structural element fails, due to failure of the main feature the whole structure collapses. i.e. local ultimate failure of global structural failure. I continuous falls may be accidental, due to design error, substandard material, or natural disaster (e.g. earthquake, flood) or man-made disaster is a form of action Terrorism, War, or the wrong way to destroy it exists Much research has been done on building structures. But little reaction work done in relation to bridges as compared to buildings. This paper is designed to review I the concept of continuous degradation of a variety of bridges.
1. Flood - Heavy rain often leads floods, which can cause events like scour, erosion, the confluence of rivers, enough depth of embedding, over-protection functions fall or hydraulic jump, soft rock, sand mines, impact of debris or abrasions on a bridge foundation, etc. One or a combination of those causes may cause a significant decrease within strength and stability of key components of the bridge and may also cause bridge failure.
Key Words: Bridge, Progressive collapse, Seismic load.
1. INTRODUCTION India is a developing country. Travel facilities and the development of related infrastructure plays an important role contribute to the development of developing countries such as India. Bridges are one of the most important engineers transport infrastructure. Bridges are there usually built on a type of barrier of similar water sources seas, rivers, lakes and valley or road. Many the function of the bridge is to provide a course of resistance these obstacles. Number of various loads seized on the bridge as gravity loads, earthquake loads, wind load, temperature, brake load, moving loads. The first the purpose of the design engineer is to improve the design of a building plan for each member of the building to know keep the code calculated in relation to joint members. A few buildings, though, exist to meet the custom of the member as set out in the design plans, I cannot provide satisfactory levels of repetition to address the area losses, losses that can lead to further deterioration of the whole structure of the building.
2. Scour - Scour can be something that happens over time the width of the river becomes less the result of water erosion, which leads to exposure to bridge foundations. On the rise depth of scour, lateral resistance of soil motivation is greatly reduced, thus increasing the lateral deviation of the inspired head. Moreover, when critical scour depths reach, bend bends inspiration can happen under the combined effect of the load of large bridge structures therefore traffic volume. 3. Earthquakes - Earthquakes cause reactions horizontal ground movement that will fail the bridge paragraphs. The direct movement of the earth causes Axial power rotation on the bridge columns or columns, which can attract the outside wrapping or crushing of columns or bars. In addition, direct earth movement may it causes a great increase in bending moment facing the center of the bridges, which may cause failure of the bridge to bend. Straight ground movement and horizontal ground moving waves provide bridge failure columns or columns. Also, both vertically and
The building continues to collapse when the first element of the structure fails, leading to the failure of the combined elements of a structure, which cause the structure failure. It also describes it as standard damage or wrapping that up inconsistent with the size of the start of the event. Ongoing
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