On the Seismic Resilience of Interwar Buildings

Abstract

This paper deals with multi-story buildings erected mostly in interwar period in seismic areas and designed for gravitational actions only. The typical structural system is reinforced concrete frames and masonry infills. A usual multi-story interwar structure was chosen in order to evaluate its seismic resilience. There were made in situ measurements for its dynamic characteristics. The numerical model was calibrated according to in situ measurements. There were proposed two methods of increasing the seismic resilience. First method consists in improving the resilience by reshaping without reinforcing. The second method is additional to the first. It consists in reinforcing infilled frames in order to take over seismic loads.

Seismic Response of a Tall Reinforced Concrete Frame Structure Subjected to both Horizontal and Vertical Strong Motions

“…The responsibility of designers and contractors is to follow seismic design code regulations which are continuously updated based on field observations, recorded data and extensive research work [4]. Accurate numerical simulations [5][6][7] coupled with analytical models are efficient tools in assessing the seismic behaviour of civil engineering structures [8]. Their main advantage is the possibility of varying several parameters to account of all possible scenarios without the need of costly and timeconsuming experimental tests.…”