2nd Croatian Conference on Earthquake Engineering 2CroCEE

Seismic performance evaluation of buildings represents a basis for seismic vulnerability and risk assessment. Considering the importance of seismic risk assessment nowadays, as one of the most actual topics in earthquake engineering, in this paper, a seismic performance evaluation of an existing RC high-rise building with walls located on the Montenegrin coast, an area with high seismic risk, is conducted. The aim of the paper is to evaluate the performance of this type of buildings built on the Montenegrin coast and thus contribute to their vulnerability assessment. Two EN 1998-1 fundamental requirements are examined for seismic performance evaluation: non-collapse and damage limitation requirements.
A non-linear 3D building model is defined in the PERFORM 3D software. Modelling is performed by taking into account realistic characteristics of used materials, constructed geometry of structural elements and realistic loads. Non-linear time history analyses are performed using 112 ground motion records, from which 56 are used for evaluation of non-collapse requirement and the other 56 for evaluation of damage limitation requirement. Ground motion records were selected and scaled according to EN 1998-1. Peak horizontal ground acceleration of 0.34g for ground motions with a return period of 475 years for checking non-collapse requirement is adopted, and 0.15g for ground motions with a return period of 95 years for checking damage limitation requirement. Inter-storey drift, wall rotations, dilatations in structural elements and shear capacity are the main parameters that are analyzed to obtain conclusions on acceptable seismic performance.
Useful conclusions related to the seismic performance of existing RC high-rise building of structural system with ductile walls built on the Montenegrin coast are pointed out.