Publicación:
EVALUATION OF FISSURES AND CRACKS IN BRIDGES BY APPLYING DIGITAL IMAGE CAPTURE TECHNIQUES USING AN UNMANNED AERIAL VEHICLE

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dc.creatorERIC FABIÁN FORCAEL DURÁN
dc.creatorJAIME OLIVIER SOTO MUÑOZ
dc.date2024
dc.date.accessioned2025-01-10T15:46:40Z
dc.date.available2025-01-10T15:46:40Z
dc.date.issued2024
dc.description.abstractTHE EVALUATION OF CRACKS AND FISSURES IN BRIDGE STRUCTURES IS ESSENTIAL TO ENSURE THE LONG-TERM SAFETY, DURABILITY, AND FUNCTIONALITY OF THESE INFRASTRUCTURES. IN THIS SENSE, PROCESSING GRAYSCALE IMAGES AND ADJUSTING BRIGHTNESS AND CONTRAST LEVELS CAN IMPROVE THE VISIBILITY OF CRACKS AND FISSURES IN BRIDGE STRUCTURES. THESE TECHNIQUES, COMPLEMENTED BY PROFESSIONAL EXPERTISE AND EFFICIENT INSPECTION TOOLS SUCH AS UNMANNED AERIAL VEHICLES (UAVS), ALLOW FOR A COMPREHENSIVE AND ACCURATE STRUCTURAL INTEGRITY ASSESSMENT. THIS STUDY USED THE EDGE DETECTION TECHNIQUE TO ANALYZE PHOTOGRAPHS OBTAINED WITH A LOW-COST UAV AS A MEANS OF IMAGE CAPTURE. THIS TOOL WAS USED TO REACH HARD-TO-REACH AREAS WHERE THERE COULD BE DAMAGE, THUS MAKING IT EASIER TO DETECT FISSURES OR CRACKS. TO CAPTURE THE FAILURES, TWO CASE STUDIES, A SMALL BRIDGE AND A LARGE BRIDGE, WERE SELECTED, BOTH LOCATED IN CONCEPCION CITY IN SOUTHERN CHILE. DURING BOTH INSPECTIONS, CRACKS WERE DETECTED THAT COULD AFFECT THE STRUCTURE OF THE BRIDGES IN THE FUTURE. TO ANALYZE THESE FINDINGS, IMAGEJ SOFTWARE 1.54H WAS USED, WHICH ALLOWED THE LENGTH AND THICKNESS OF THE CRACKS TO BE MEASURED AND EVALUATED. IN ADDITION, TO VALIDATE THE PROCEDURE PROPOSED, REAL VALUES MANUALLY MEASURED ON-SITE WERE COMPARED WITH THOSE DELIVERED BY THE SOFTWARE ANALYSES, WHERE NO STATISTICALLY SIGNIFICANT DIFFERENCES WERE FOUND. WITH THE METHOD PRESENTED IN THIS STUDY, IT WAS POSSIBLE TO QUANTIFY THE DAMAGE, FOLLOWING THE BRIDGE MAINTENANCE STANDARDS ESTABLISHED BY THE MINISTRY OF PUBLIC WORKS OF CHILE, WHOSE INSPECTION CRITERIA CAN BE APPLIED TO OTHER PROJECTS WORLDWIDE.
dc.formatapplication/pdf
dc.identifier.doi10.3390/drones8010008
dc.identifier.issn2504-446X
dc.identifier.urihttps://repositorio.ubiobio.cl/handle/123456789/13610
dc.languagespa
dc.publisherDRONES
dc.relation.uri10.3390/drones8010008
dc.rightsPUBLICADA
dc.subjectUnmanned Aerial Vehicle
dc.subjectgrayscale-based image processing
dc.subjectfissures
dc.subjectedge detection
dc.subjectcracks
dc.subjectbridge
dc.titleEVALUATION OF FISSURES AND CRACKS IN BRIDGES BY APPLYING DIGITAL IMAGE CAPTURE TECHNIQUES USING AN UNMANNED AERIAL VEHICLE
dc.typeARTÍCULO
dspace.entity.typePublication
ubb.EstadoPUBLICADA
ubb.Otra ReparticionDEPARTAMENTO DE INGENIERIA CIVIL Y AMBIENTAL
ubb.Otra ReparticionDEPARTAMENTO DE CIENCIAS DE LA CONSTRUCCION
ubb.SedeCONCEPCIÓN
ubb.SedeCONCEPCIÓN
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