Structural observation of long-span suspension bridges for safety assessment: implementation of an optical displacement measurement system

2014 Joint IMEKO TC1-TC7-TC13 Symposium: Measurement Science Behind Safety and Security

Lages Martins, L.L.^1 ; Rebordão, J.M.^2 ; Silva Ribeiro, A.S.^1

National Laboratory for Civil Engineering (LNEC), Lisbon, Portugal^1

Universidade de Lisboa, Faculdade de Ciências, Laboratory of Optics, Lasers and Systems (LOLS), Lisbon, Portugal^2

关键词: Long span suspension bridges;    Measurement uncertainty;    Safety assessments;    Structural observations;    Structural safety;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/588/1/012004/pdf
DOI  :  10.1088/1742-6596/588/1/012004

来源: IOP

【 摘 要 】

This paper addresses the implementation of an optical displacement measurement system in the observation scenario of a long-span suspension bridge and its contribution for structural safety assessment. The metrological background required for quality assurance of the measurements is described, namely, the system's intrinsic parameterization and integration in the SI dimensional traceability chain by calibration, including its measurement uncertainty assessment.