BULETINUL INSTITUTULUI POLITEHNIC DIN IAŞI Publicat de Universitatea Tehnică „Gheorghe Asachi” din Iaşi Tomul LIX (LXIII), Fasc. 1, 2013 Secţia CONSTRUCŢII. ARHITECTURĂ CALIBRATION OF A COMPUTATION MODEL FOR A REINFORCED CONCRETE STRUCTURE AGAINST THE EXPERIMENTALLY DETERMINED DYNAMIC CHARACTERISTICS BY CONSTANTIN GAVRILOAIA * , MIHAI BUDESCU, NICOLAE ŢĂRANU and RALUCA HOHAN “Gheorghe Asachi” Technical University of Iaşi Faculty of Civil Engineering and Building Services Received: October 10, 2012 Accepted for publication: November 15, 2012 Abstract. The dynamic characteristics of the structures range are depending on their mass and lateral stiffness. In the present paper a method for improving the computation model is proposed, thus creating a link between the dynamic characteristics obtained with the computation model based on the finite element method and the experimentally determined dynamic characteristics. The finite element model was obtained using the program ETABS and the experimental dynamic characteristics were obtained on a low vibration level. To intercept the dynamic response in situ five simultaneous Kinemetrics seismometers were used placed on the longitudinal and transversal direction. The dynamic identification was performed with the ModalVIEW program based on the Stochastic Subspace Identification. The calibration of the computation model with finite elements was accomplished by adjusting the brick masonry longitudinal elastic modulus. Key words: dynamic identification; transducers; shape modes. * Corresponding author: e-mail: gavriloaiaconstantin@gmail.com