INSTITUTO ARGENTINO DE NIVOLOGIA, GLACIOLOGIA Y CIENCIAS AMBIENTALES
Unidad Ejecutora - UE
congresos y reuniones científicas
Structural health monitoring of the natural bridge Puene del Inca, Mendoza, Argentina. Advances in remote sensing for cultural heritage: from site detection, to documentation and risk monitoring
ESTEBAN LANNUTTI; MARIA GABRIELA LENZANO; JORGE BARÓN; LUIS LENZANO
Workshop; ADVANCES IN REMOTE SENSING FOR CULTURAL HERITAGE: FROM SITE DETECTION, TO DOCUMENTATION AND RISK MONITORING; 2015
ESA - ESRIN
Puente del Inca is a natural bridgelocated at 32° 49′ 34″ S, 69° 54′ 41″W, Mendoza, Argentina (Figure 1).Its shape forms a natural arch thatstands upon the Cuevas river, in theCentral Andes (Figure 2). Currently,it is considered a Protected NaturalArea and it is part of the QhapaqÑanAndean Roadway System, recentlydesignated a World Heritage Site bythe UNESCO. Puente del Inca is notonly a rigid geological structurecomposed by hot mineral springwaters, but rather a ?SystemsGeobiology? related to biological,physical and chemical processes.The balance between erosionfactors and the natural formationprocess establishes the currentmorphology of the structure.Although Puente del Inca undergoes a natural processes ofregression, it was not until humanintervention that its structuralintegrity was severely impacted. Inlight of studies conducted on thestructure, it becomes necessary tomonitor and assess this delicatebalance in order to protect thebridge´s integrity. With the goal ofcontributing to Puente del Inca´srestoration and conservation, thestructure´s behavior and evolutionwere studied through SHM(Structural Health Monitoring)techniques. These nondestructivemethods include: a) the structure´sFEM (Finite Element Method)model through material testing andmeasurements 3D LaserScanning; b) Measuring thebridge´s surface velocities (N, E, U)and displacements building aGNSS (Global Navigation SatelliteSystem) network; c) GPR (Groundpenetratingradar) techniques toanalyze the internal structure; d)Estimate modal parameters usingoutput-only responsesmeasurements with seismometersand System Identification software.