Dynamic Response of Double-Track Railway Bridges

2009 ◽  
Author(s):  
M.K. Swailem
Keyword(s):  
Dynamic Response ◽  
Railway Bridges ◽  
Double Track

Robust Output Only Health Monitoring of Steel Railway Bridges

2020 ◽  
pp. 24-41
Author(s):  
Ahmed Rageh ◽  
Daniel Linzell ◽  
Samantha Lopez ◽  
Saeed Eftekhar Azam
Keyword(s):  
Health Monitoring ◽  
Three Dimensional ◽  
Supervised Machine Learning ◽  
Damage Scenario ◽  
Railway Bridges ◽  
Bridge Span ◽  
Structural Responses ◽  
Girder Bridge ◽  
Output Only ◽  
Double Track

This chapter extends application of a framework proposed by the authors (73, 74) for automated damage detection using strain measurements to study feasibility of using sensors that can measure accelerations, tilts, and displacements. The study utilized three-dimensional (3D) finite element models of double track, riveted, steel truss span, and girder bridge span under routine train loads. The chapter also includes three instrumentation schemes for each bridge span (65) to investigate the applicability of the framework to other bridge systems and sensor networks. Connection damage was simulated by reducing rotational spring stiffness at member ends and various responses were extracted for each damage scenario. The methodology utilizes Supervised Machine Learning to automatically determine damage location (DL) and intensity (DI). Simulated experiments showed that DLs and DIs were detected accurately for both spans with various structural responses and using different instrumentation plans.

Effects of speed, load and damping on the dynamic response of railway bridges and vehicles

2008 ◽  
Vol 86 (6) ◽  
pp. 556-572 ◽  
Author(s):  
Michal Majka ◽  
Michael Hartnett
Keyword(s):  
Dynamic Response ◽  
Railway Bridges

Quick assessment of high-speed railway bridges based on a non-dimensional parameter representation

2017 ◽  
Vol 20 (11) ◽  
pp. 1623-1631 ◽  
Author(s):  
Patrick Salcher ◽  
Christoph Adam
Keyword(s):  
Dynamic Response ◽  
High Speed ◽  
Response Assessment ◽  
Engineering Practice ◽  
Characteristic Parameters ◽  
Dimensional Parameter ◽  
High Speed Railway ◽  
Railway Bridges ◽  
Parameter Representation ◽  
Bridge Model

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.

scholarly journals Dynamic Response and Design of Continuous Concrete Railway Bridges in Resonance Area.

2003 ◽  
pp. 83-102 ◽  
Author(s):  
Masamichi SOGABE ◽  
Nobuyuki MATSUMOTO ◽  
Yozo FUJINO ◽  
Hajime WAKUI ◽  
Makoto KANAMORI ◽  
...  
Keyword(s):  
Dynamic Response ◽  
Railway Bridges

scholarly journals DYNAMIC RESPONSE ANALYSIS OF ELEVATED RAILWAY BRIDGES DUE TO SHINKANSEN TRAINS

2006 ◽  
Vol 62 (3) ◽  
pp. 509-519 ◽  
Author(s):  
Mitsuo KAWATANI ◽  
Xingwen HE ◽  
Ryo SHIRAGA ◽  
Masaki SEKI ◽  
Seiji NISHIYAMA ◽  
...  
Keyword(s):  
Dynamic Response ◽  
Response Analysis ◽  
Dynamic Response Analysis ◽  
Railway Bridges
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