Quick assessment of high-speed railway bridges based on a non-dimensional parameter representation. Issue 11 (November 2017)

• Record Type: Journal Article
• Authors: Salcher, Patrick; Adam, Christoph
• Is Part Of: Advances in structural engineering. Volume 20:Issue 11(2017)
• Page Start: 1623
• Page End: 1631
• Publication Date: 2017-11
• Subjects: dynamic response -- high-speed railway bridge -- non-dimensional parameter space -- simplified assessment; Structural engineering -- Periodicals; Construction, Technique de la; Structural engineering; Periodicals; 624.1
• DOI: 10.1177/1369433216689568
• Languages: English
• ISSNs: 1369-4332

Abstract

The objective of this study is to provide the engineering practice with a tool for simplified dynamic response assessment of high-speed railway bridges in the pre-design phase. To serve this purpose, a non-dimensional representation of the characteristic parameters of the train–bridge interaction problem is described and extended based on a beam bridge model subjected to the static axle loads of the crossing high-speed train. The non-dimensional parameter representation is used to discuss several code-related design issues. It is revealed that in an admitted parameter domain, a code-regulated static assessment of high-speed railway bridges may under-predict the actual dynamic response. Furthermore, the minimum mass of a bridge as a function of the characteristic parameters is presented to comply with the maximum bridge acceleration specified in standards.