Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Vehicle-bridge Interaction Analysis and Maximum Allowable Speed of a Deployable Emergency Repair Beam
https://orcid.org/https://orcid.org/0000-0003-2272-9620
https://orcid.org/https://orcid.org/0000-0002-6224-6546
https://orcid.org/https://orcid.org/0000-0003-4505-2202
https://orcid.org/https://orcid.org/0000-0002-0849-5496
In order to solve the problems of low carrying capacity, low allowable speed and inconvenient storage and transportation of existing railway emergency repair beam, a technical scheme for deployable emergency repair beam was proposed. By using ANSYS software and the multi-body dynamics software UM (Universal Mechanism), the finite element model of the emergency repair beam and vehicle model of the C70 (C70 Open Wagon) freight train and the CRH380A (China Railway Highspeed 380A) high-speed train were established. The static analysis, modal analysis and vehicle-bridge interaction analysis of the emergency repair beam were carried out. The results show that: Compared with the existing emergency repair beam, the deployable emergency repair beam has the advantages of convenient storage and transportation, and rapid assembly. The developable emergency repair beam perfectly solves the contradiction between storage and assembly speed. With the increase of span and the decrease of the number of stable main trusses, the indicators of stress, mid-span displacement and acceleration of the key parts of the deployable emergency repair beam tend to be unfavourable. The combination of different main truss can realize the emergency repair beam with different span and width, and the mechanical properties of the emergency repair beam with different span and width are also different.
Vehicle-bridge Interaction Analysis and Maximum Allowable Speed of a Deployable Emergency Repair Beam
https://orcid.org/https://orcid.org/0000-0003-2272-9620
https://orcid.org/https://orcid.org/0000-0002-6224-6546
https://orcid.org/https://orcid.org/0000-0003-4505-2202
https://orcid.org/https://orcid.org/0000-0002-0849-5496
In order to solve the problems of low carrying capacity, low allowable speed and inconvenient storage and transportation of existing railway emergency repair beam, a technical scheme for deployable emergency repair beam was proposed. By using ANSYS software and the multi-body dynamics software UM (Universal Mechanism), the finite element model of the emergency repair beam and vehicle model of the C70 (C70 Open Wagon) freight train and the CRH380A (China Railway Highspeed 380A) high-speed train were established. The static analysis, modal analysis and vehicle-bridge interaction analysis of the emergency repair beam were carried out. The results show that: Compared with the existing emergency repair beam, the deployable emergency repair beam has the advantages of convenient storage and transportation, and rapid assembly. The developable emergency repair beam perfectly solves the contradiction between storage and assembly speed. With the increase of span and the decrease of the number of stable main trusses, the indicators of stress, mid-span displacement and acceleration of the key parts of the deployable emergency repair beam tend to be unfavourable. The combination of different main truss can realize the emergency repair beam with different span and width, and the mechanical properties of the emergency repair beam with different span and width are also different.
Vehicle-bridge Interaction Analysis and Maximum Allowable Speed of a Deployable Emergency Repair Beam
https://orcid.org/https://orcid.org/0000-0003-2272-9620
https://orcid.org/https://orcid.org/0000-0002-6224-6546
https://orcid.org/https://orcid.org/0000-0003-4505-2202
https://orcid.org/https://orcid.org/0000-0002-0849-5496
In order to solve the problems of low carrying capacity, low allowable speed and inconvenient storage and transportation of existing railway emergency repair beam, a technical scheme for deployable emergency repair beam was proposed. By using ANSYS software and the multi-body dynamics software UM (Universal Mechanism), the finite element model of the emergency repair beam and vehicle model of the C70 (C70 Open Wagon) freight train and the CRH380A (China Railway Highspeed 380A) high-speed train were established. The static analysis, modal analysis and vehicle-bridge interaction analysis of the emergency repair beam were carried out. The results show that: Compared with the existing emergency repair beam, the deployable emergency repair beam has the advantages of convenient storage and transportation, and rapid assembly. The developable emergency repair beam perfectly solves the contradiction between storage and assembly speed. With the increase of span and the decrease of the number of stable main trusses, the indicators of stress, mid-span displacement and acceleration of the key parts of the deployable emergency repair beam tend to be unfavourable. The combination of different main truss can realize the emergency repair beam with different span and width, and the mechanical properties of the emergency repair beam with different span and width are also different.
Vehicle-bridge Interaction Analysis and Maximum Allowable Speed of a Deployable Emergency Repair Beam
KSCE J Civ Eng
Zhang, Feifan (Autor:in) / Xu, Guangxing (Autor:in) / Li, Zhaohong (Autor:in) / Li, Mingyang (Autor:in)
KSCE Journal of Civil Engineering ; 27 ; 4332-4351
01.10.2023
20 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
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