International Research Journal of Engineering and Technology (IRJET) Volume: 11 Issue: 04 | Apr 2024
www.irjet.net
e-ISSN: 2395-0056 p-ISSN: 2395-0072
Dynamic and Vibration Analysis of Foot Over Bridge with Various Frequencies Due To Human Walking By Using Staadpro: A Review Miss. Shreeya Joshi 1 Prof. A. A. Sengupta 2 Student M.E, Dept. of Civil Engineering, Dr. Vitthalrao Vikhe Patil College of Engineering, Ahmednagar. 1 Assistant Professor, Dept. of Civil Engineering, Dr. Vitthalrao Vikhe Patil College of Engineering, Ahmednagar. 2 ---------------------------------------------------------------------***----------------------------------------------------------------------Abstract—
Bridges offer many opportunities for imagination and innovation. The design should be as attractive as possible. The building must be compatible with the environment. The proportions of different parts of the bridge should be proportional. Exterior cladding and painting should enhance the elegance of the bridge. The structure of pedestrian bridges has become bold, including experience and knowledge of the design and use of new products and technologies. This fact makes it highly competitive, thus changing the relative services and ultimate frontier of the state. The direct result of this design is a significant increase in vibration problems. In the special case of pedestrian bridges, this phenomenon occurs when the equipment frequency set is close to or several times higher than the load excitation frequency. This is the main motivation of this article to develop a design process that will better evaluate the comfort and safety of pedestrian bridges. Keyword: Foot Over Bridge, Dynamic, Staadpro.
1. INTRODUCTION Because the pedestrian bridge is over the road, people may cross it securely without causing vehicles to slow down. First, there will be pedestrianised structures; places close to colleges, universities, and busy intersections are good examples of these kinds of places. The pedestrian bridge's architectural idea is to provide infrastructure and transportation that can accommodate the requirements of the public without compromising the area's unique identity or economic significance. Safety of pedestrians was the primary reason for announcing the project, which calls for the quickest traffic and an excellent pedestrian bridge across the building. The nation's roadways will enable vehicles to move at a fast speed without interruption, conserving room and fuel while also averting hazard. Robust and long-lasting bridges are essential to the nation's economic growth. RCC bridges have a long lifespan, low initial cost, and require little maintenance, as owners and designers have long recognised. The type of bridge that is built depends on its intended use, the environment in which it is located and supported, the © 2024, IRJET
|
Impact Factor value: 8.226
|
materials that are utilised, and the funding that is available. Larger vibration amplitudes can result from significant force due to the decrease of such structure. Larger structures require higher vibration event payments. Resonance, for instance, will happen if the frequency of the bridge and the excitation frequency match. Frequency of pedestrian footfall. On pedestrian bridges, pedestrian excitation is a significant cause of vibration. There is an uneven distribution of passengers, causing them to waver within a narrow range of excitation frequencies. Consequently, it is evident that dynamic response is crucial for vibration-sensitive model design. Vibrations on pedestrian bridges can impact pedestrian comfort and mood, which can lead to real-world issues. Rare are the accidents and even tragedies brought on by dynamics driven by humans.
2. STATE OF DEVELOPMENT J. Kala et al (2009) Excessive pedestrian-induced dynamic loads may have an impact on pedestrian bridges because of their natural frequency and the significance of pedestrian-induced loads. Certain design models have cargo models that are easy for pedestrians to navigate and have a basic design. However, the designer is frequently the one responsible for load modelling a lot of models. This article's primary focus is on human forces applied to pedestrian bridges and load modelling techniques used in pedestrian bridge dynamic design. Additionally offered and contrasted are design and load models that were created using widely used models. Using the ANSYS programming system, a comprehensive structural model of the Kolin suspension bridge in the Czech Republic underwent dynamic study. An individual and a group of pedestrians' loads were modelled in an experiment, and the movement and speed that resulted were compared to the fitted model. Iemke Roos et al (2009) The neighbourhood need more growth a few years ago. The advancements in architecture, building, materials, and teamwork are creating longer and thinner feet. These bridges are more likely to experience vibrations in the bridge deck due to forces from people. These vibrations can occasionally go very strong, especially when people are walking at a pace that is similar
ISO 9001:2008 Certified Journal
|
Page 2171