Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
On live load impact factors for railroad bridges
Dynamic loads crossing a bridge cause a structural response greater than if the same loads were static, a fact that has been known to structural engineers for over 125 years. This review paper presents a history of the evolution of railroad bridge impact formulas. Most non-North American countries operate passenger trains at much higher speeds than in North America. In the US, hundreds of very old open deck bridges will eventually likely be required to carry faster trains. This raises the question of what effects higher speeds will have on these bridges. What factors need to be considered in the upgrading of existing open deck bridges to accommodate newer and higher speed train equipment? A comparison of how dynamic impact factors are computed in countries around the world has been presented. Also examined are the differences and reasons between the impact requirements of North American railroads and European and Asian railroads.
On live load impact factors for railroad bridges
Dynamic loads crossing a bridge cause a structural response greater than if the same loads were static, a fact that has been known to structural engineers for over 125 years. This review paper presents a history of the evolution of railroad bridge impact formulas. Most non-North American countries operate passenger trains at much higher speeds than in North America. In the US, hundreds of very old open deck bridges will eventually likely be required to carry faster trains. This raises the question of what effects higher speeds will have on these bridges. What factors need to be considered in the upgrading of existing open deck bridges to accommodate newer and higher speed train equipment? A comparison of how dynamic impact factors are computed in countries around the world has been presented. Also examined are the differences and reasons between the impact requirements of North American railroads and European and Asian railroads.
On live load impact factors for railroad bridges
Jacobs, David W. (Autor:in) / Malla, Ramesh B. (Autor:in)
International Journal of Rail Transportation ; 7 ; 262-278
02.10.2019
17 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Live Loads for Railroad Bridges
| ASCE | 2021
Closure to “Live Loads for Railroad Bridges”
| ASCE | 2021
Discussion of “Live Loads for Railroad Bridges”
| ASCE | 2021
| Engineering Index Backfile | 1955
Simple Live Load Distribution Factors for Girder Bridges
| British Library Conference Proceedings | 1994