British Columbia Smart Infrastructure Monitoring System

Kaya, Yavuz; Ventura, Carlos E.; Huffman, Sharlie; Turek, Martin

doi:10.1139/cjce-2016-0577

Cited by 12 publications

(4 citation statements)

References 18 publications

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“…The importance of bridge infrastructure has led to SHM programs in some seismically active regions such as the Vancouver area of British Columbia, Canada, a large city with high seismic hazard due to its location in the Cascadia subduction zone [ 49 ]. As part of this program seismic sensors were installed on bridges including the Port Mann bridge, a large 2020 m long 65 m wide bridge [ 50 ].…”

Section: Resultsmentioning

confidence: 99%

Characterization of Six-Degree-of-Freedom Sensors for Building Health Monitoring

Murray-Bergquist

Bernauer

Igel

2021

Sensors

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Six-degree-of-freedom (6DoF) sensors measure translation along three axes and rotation around three axes. These collocated measurements make it possible to fully describe building motion without the need for an external reference point. This is an advantage for building health monitoring, which uses interstory drift and building eigenfrequencies to monitor stability. In this paper, IMU50 6DoF sensors are characterized to determine their suitability for building health monitoring. The sensors are calibrated using step table methods and by comparison with earth’s rotation and gravity. These methods are found to be comparable. The sensor’s self-noise is examined through the power spectral density and the Allan deviation of data recorded in a quiet environment. The effect of temperature variation is tested between 14 and 50 °C. It appears that the self-noise of the rotation components increases while the self-noise of the acceleration components decreases with temperature. The comparison of the sensor self-noise with ambient building signal and higher amplitude shaking shows that these sensors are in general not sensitive enough for ambient signal building health monitoring in the frequency domain, but could be useful for monitoring interstory drift and building motion during, for example, strong earthquake shaking in buildings similar to those examined here.

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Section: Resultsmentioning

confidence: 99%

Characterization of Six-Degree-of-Freedom Sensors for Building Health Monitoring

Murray-Bergquist

Bernauer

Igel

2021

Sensors

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“…The test setup had two sets of instrumentation: "Field Sensors" and "Laboratory sensors." "Field Sensors" refers to what has been installed in the schools in the field (i.e., Permanent Strong Motion Monitoring Systems) 18 and 'Laboratory Sensors' refers to typical scientific instrumentation that is used for a test of this nature, to capture all of the appropriate structural dynamic responses. Figure 8 shows the layout of the laboratory and field instrumentations attached to the specimen.…”

Section: Instrumentationmentioning

confidence: 99%

Drift‐ and energy‐based seismic performance assessment of retrofitted wood frame shear wall buildings: Shake table tests

Ventura

Motamedi

Pan

et al. 2023

Earthq Engng Struct Dyn

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In 2004, the Province of British Columbia (BC) announced a multi-year $1.5 billion seismic retrofit program for the province's 750 at-risk public schools. The purpose of this program was to quantify the seismic risk of the province's public-school buildings and to expedite the seismic upgrading of the most at-risk schools. In order to provide a safe and cost-effective implementation of this program, the Engineers and Geoscientists BC, in collaboration with the University of British Columbia, has developed a performance-based probabilistic method and guidelines for the seismic risk assessment and retrofit of low-rise buildings. As part of this initiative, a number of laboratory experiments have been conducted to provide data that would support the recommendations provided in the guidelines. The laboratory experiments included several full-scale shake table tests of wood frame systems. The specimens were subjected to sequences of earthquake motions to simulate their performance under main shock-aftershocks. This paper presents details of seven of the experiment and wood-frame buildings considered. A detailed discussion of the results of the analyses of the shake table tests data, and performance assessment using drift-and energy-based damage indices is presented. This study highlights the importance of considering the effects of subduction earthquake and mainshock-aftershock sequences for design and retrofit of wood frame structures.

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“…Monitoring existing infrastructure assets is vital to determining the safety of its continued use (cf. Reagan et al 2017) and to allow for improved management of infrastructure networks especially during extreme events (e.g., Kaya et al 2017). Infrastructure inspections must be carried out regularly and the most widely used method is for an inspector to visually assess the structure i.e.…”

Section: Monitoring Of Civil Infrastructure Alternatives To Visual Inmentioning

confidence: 99%

Aerial robotic technologies for civil engineering: established and emerging practice

Freeman

Kashani

Vardanega

2021

J. Unmanned Veh. Sys.

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Aerial robotic technology has potential for use in a wide variety of civil engineering applications. Such technology potentially offers low-cost methods to replace expensive structural health monitoring activities such as visual inspection. Aerial robots also have potential uses in civil construction and for regional surveys. This paper presents the results of a review on the applications of aerial robotic technology in civil engineering. Such civil engineering applications can be classified into three broad areas: (i) monitoring and inspection of civil infrastructure; (ii) site management, robotic construction, and maintenance and (iii) post-disaster response surveys and rapid damage assessments. The motivations for uptake of aerial robotics in the civil engineering industry generally fall into the following categories: (i) cost savings, (ii) improved measurement capability and (iii) safety improvements. The categories of aerial robotic use in civil engineering are then classified as either ‘established’ or ‘emerging’ uses.

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British Columbia Smart Infrastructure Monitoring System

Cited by 12 publications

References 18 publications

Characterization of Six-Degree-of-Freedom Sensors for Building Health Monitoring

Characterization of Six-Degree-of-Freedom Sensors for Building Health Monitoring

Drift‐ and energy‐based seismic performance assessment of retrofitted wood frame shear wall buildings: Shake table tests

Aerial robotic technologies for civil engineering: established and emerging practice

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