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Title: Chapter 2 - Robust Output Only Health Monitoring of Steel Railway Bridges: Analysis of Applicability of Different Sensors
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.  more » « less
Award ID(s):
1762034
NSF-PAR ID:
10278186
Author(s) / Creator(s):
; ; ;
Editor(s):
Gaur, L.; Solanki, A.; Jain, V.; Khazanchi, D.
Date Published:
Journal Name:
Handbook of Research on Engineering Innovations and Technology Management in Organizations
Format(s):
Medium: X
Sponsoring Org:
National Science Foundation
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