ABSTRACT

This chapter investigates the dynamic characteristics of the Jura chapel, which dates from the sixteenth century and is located in the "San Juan de los Caballeros church". In 2012, owing to the fact structural damages were detected in the dome of the chapel, a structural intervention began in order to recover its original aspect. The control consisted in obtaining the modal parameters before and after the intervention works, and comparing them. Significant changes in these parameters would indicate any alteration of the structural stiffness of the buildings located above the theatre. The chapter focuses on the control of the works that have been performed in the Jura chapel of the San Juan de los Caballeros church. In order to analyze the structural effects of this works, nondestructive control techniques were applied, namely Operational Modal Analysis. By means of ambient vibration tests, the dynamic behaviour of the complex has been assessed before and after the works.