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I n t e r n a t i o n a l C o n f e r e n c e o n
Structural and Civil Engineering
Research
JET 2018
ISSN: 2319-9873
O c t o b e r 0 1 - 0 2 , 2 0 1 8
Am s t e r d a m , N e t h e r l a n d s
Civil Engineering 2018
Page 20
D
espite tremendous rise in sensor and information technologies in the last
four decades, structural health monitoring (SHM) discipline remained limited
by structure scale applications. Advanced systems, instrumentation, and labour
requirements obstructed widespread use of sensor technologies to monitor civil
infrastructure. However, advent of smartphones is radically changing sensing
notion with ubiquitous devices and citizen participation. Up to date examples
show that smartphones can be used for monitoring of structural vibrations and
produce valuable decision making tools for infrastructure authorities. This study
merges latest advances in smartphone based SHM implementations with a broad
perspective. Utilizing smartphone sensors through ordinary citizens, structural
vibration data can be acquired at no cost and can be processed to diagnose
structural characteristics, e.g. modal parameters. Smart monitoring tools and
signal processing techniques can be adopted to eliminate citizen induced
uncertainties from crowdsensed vibration data. The identified structural features
can be used to calibrate theoretical models and improve accuracy and eventually
conduct seismic performance evaluation or reliability assessment with updated
models. In summary, from early feasibility tests to necessary crowdsourcing
software platforms and from modal identification to model updating, seismic
reliability estimation with calibrated models can be done. In this study, a new
smart city concept is presented towards better and safer structural systems with
modern sensing principles.
A mobile crowdsourcing path to SHM-integrated
seismic reliability assessment
Ekin Ozer
Middle East Technical University, Northern Cyprus Campus, Turkey
Ekin Ozer, JET 2018 Volume: 7
Biography
Ekin Ozer, after completing his BSc and MSc from Bogazici
University Civil Engineering Department, has completed his
PhD from Columbia University, Department of Civil Engineering
and Engineering Mechanics. His work constituted the first
crowdsourcing examples in vibration-based structural health
monitoring field and produced numerous international journal
publications scoping sensor technologies and smart structures.
After working with Novum Structures specialized in steel and
glass components and cladding systems, currently, he is with
Middle East Technical University as an Assistant Professor
eo2327@columbia.edu