engleski

Dynamic properties of multistory reinforced concrete tunnel-form building - a case study in Osijek, Croatia

Reinforced concrete shear wall (RCSW) dominant buildings, constructed using a special tunnel-form technique, are commonly built in the Republic of Croatia. The fundamental period of vibration plays a major role in predicting the expected behavior of structures under dynamic excitations. Empirical formulas for the estimation of the fundamental period have been included in seismic codes, which mainly depend on building height, material (steel, reinforced concrete (RC)) and structural systems type (frame, shear wall, etc.). These formulas have been usually derived from empirical data through regression analysis of the measured fundamental period of existing buildings subjected to seismic actions. The main purpose of this paper is to compare the fundamental period obtained from numerical analysis of a real RC building constructed using a special tunnel-form technique with the periods obtained using formulas in different building codes.

reinforced concrete; shear wall; fundamental period; seismic codes;

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