A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Dynamic Behaviour of Railway Bridges: A Review of Code Provisions for Passengers’ Comfort and Operational Safety
https://orcid.org/http://orcid.org/0000-0002-7546-5617
https://orcid.org/http://orcid.org/0000-0001-6722-8956
Railway has a larger number of advantages over other modes of transportation, such as cost-efficiency, environmental friendliness, and larger capacity, which has led to rapid growth in high-speed and semi-high-speed railways during the last decade. Bridges are subjected to much higher impact due to high-speed train load and magnified several times in the vicinity of resonance. Indian bridge rule takes into account the dynamic effects with the help of the coefficient of dynamic augment (CDA) and is limited up to the speed of 160 km/h only. As speed increases beyond 160 km/h, chances of resonance are going to increase, nothing about which is mentioned in the Indian code. A comparative study of the Eurocode, UIC guidelines, and Indian bridge rule is carried out to investigate the effects of resonance on passengers’ comfort and running safety of trains at higher speeds on bridges designed as per Indian bridge rule. FEM model of a standard Research Designs and Standards Organisations (RDSO) bridge in MIDAS civil software, as per UIC and Eurocode guidelines, and Vande-bharat train loading is considered in this study. Model verification with the theoretical solution of Chopra (2007) is presented. It is concluded that the design of bridges considering CDA is insufficient for high-speed trains, as it is not able to capture magnifications due to resonance.
Dynamic Behaviour of Railway Bridges: A Review of Code Provisions for Passengers’ Comfort and Operational Safety
https://orcid.org/http://orcid.org/0000-0002-7546-5617
https://orcid.org/http://orcid.org/0000-0001-6722-8956
Railway has a larger number of advantages over other modes of transportation, such as cost-efficiency, environmental friendliness, and larger capacity, which has led to rapid growth in high-speed and semi-high-speed railways during the last decade. Bridges are subjected to much higher impact due to high-speed train load and magnified several times in the vicinity of resonance. Indian bridge rule takes into account the dynamic effects with the help of the coefficient of dynamic augment (CDA) and is limited up to the speed of 160 km/h only. As speed increases beyond 160 km/h, chances of resonance are going to increase, nothing about which is mentioned in the Indian code. A comparative study of the Eurocode, UIC guidelines, and Indian bridge rule is carried out to investigate the effects of resonance on passengers’ comfort and running safety of trains at higher speeds on bridges designed as per Indian bridge rule. FEM model of a standard Research Designs and Standards Organisations (RDSO) bridge in MIDAS civil software, as per UIC and Eurocode guidelines, and Vande-bharat train loading is considered in this study. Model verification with the theoretical solution of Chopra (2007) is presented. It is concluded that the design of bridges considering CDA is insufficient for high-speed trains, as it is not able to capture magnifications due to resonance.
Dynamic Behaviour of Railway Bridges: A Review of Code Provisions for Passengers’ Comfort and Operational Safety
https://orcid.org/http://orcid.org/0000-0002-7546-5617
https://orcid.org/http://orcid.org/0000-0001-6722-8956
Railway has a larger number of advantages over other modes of transportation, such as cost-efficiency, environmental friendliness, and larger capacity, which has led to rapid growth in high-speed and semi-high-speed railways during the last decade. Bridges are subjected to much higher impact due to high-speed train load and magnified several times in the vicinity of resonance. Indian bridge rule takes into account the dynamic effects with the help of the coefficient of dynamic augment (CDA) and is limited up to the speed of 160 km/h only. As speed increases beyond 160 km/h, chances of resonance are going to increase, nothing about which is mentioned in the Indian code. A comparative study of the Eurocode, UIC guidelines, and Indian bridge rule is carried out to investigate the effects of resonance on passengers’ comfort and running safety of trains at higher speeds on bridges designed as per Indian bridge rule. FEM model of a standard Research Designs and Standards Organisations (RDSO) bridge in MIDAS civil software, as per UIC and Eurocode guidelines, and Vande-bharat train loading is considered in this study. Model verification with the theoretical solution of Chopra (2007) is presented. It is concluded that the design of bridges considering CDA is insufficient for high-speed trains, as it is not able to capture magnifications due to resonance.
Dynamic Behaviour of Railway Bridges: A Review of Code Provisions for Passengers’ Comfort and Operational Safety
Lecture Notes in Civil Engineering
Shrikhande, Manish (editor) / Agarwal, Pankaj (editor) / Kumar, P. C. Ashwin (editor) / Khajuria, Mohit (author) / Singh, Yogendra (author)
Symposium in Earthquake Engineering ; 2022 ; Roorkee, India
Proceedings of 17th Symposium on Earthquake Engineering (Vol. 1) ; Chapter: 56 ; 777-789
2023-07-28
13 pages
Article/Chapter (Book)
Electronic Resource
English
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