Dynamic identification of a masonry building using forced vibration tests

摘要: The aim of the paper is to check capability dynamic identification procedures, usually applied reinforced concrete or steel buildings, in estimation characteristics masonry buildings. To this purpose, behaviour at low vibration levels an existing building subjected forced, sinusoidal sweep, test, was investigated. Possibly on account weak nonlinearities building, measurements obtained with tests seemed more suited than those by sweep for application techniques. These concern both modal and physical models: dynamical frequencies some eigenvector components identification, were assumed as experimental data update suitably selected stiffness parameters a finite element model structure. updating performed means specially developed code based output error equation. Criteria rational choice applied. A very good agreement between numerical frequency response functions while showed rigidity fitting all data, albeit acceptable level scatter. Taken whole, results show that well-established techniques can furnish useful information concerning properties structures.