The combination of geomatic approaches and operational modal analysis to improve calibration of finite element models : a case of study in Saint Torcato church (Guimarães, Portugal)

2014-01-01

Sánchez-Aparicio, Luis Javier; Riveiro, Belén; Gonzalez-Aguilera, Diego; Ramos, Luís F.

UAV; Unmanned Aerial Vehicle; SfM; Structure from motion PW; Photogrammetry workbench; Modal assurance criterion; Douglas-reid method; ICP iterative closest point; NURBS non-uniform rational B-splines

This paper present a set of procedures based on laser scanning, photogrammetry (Structure from Motion) and operational modal analysis in order to obtain accurate numeric models which allows identifying architectural complications that arise in historical buildings. In addition, the method includes tools that facilitate building-damage monitoring tasks. All of these aimed to obtain robust basis for numerical analysis of the actual behavior and monitoring task. This case study seeks to validate said methodologies, using as an example the case of Saint Torcato Church, located in Guimarães, Portugal.