Akademik Veri Yönetim Sistemi
4th International Congress of Engineering and Natural Sciences, Ankara, Türkiye, 24 - 25 Mayıs 2024, ss.1-16
It
is known that reinforced concrete structures containing soft floor effects
suffer significant or pre-collapse damage during earthquakes. In this study, several
methods have been proposed to ensure that reinforced concrete structures
designed as soft floors for commercial purposes remain usable in possible major
earthquakes and to prevent risks to people's lives. In the study, the effects
of rubber-based and friction-based passive base isolation systems used in the
literature on the earthquake behavior of reinforced concrete buildings with
soft floor effect were investigated. Passive base isolation systems were used
in the 8-floor reinforced concrete structure, whose dominant mode period was
less than 1 s and whose ground floor was designed as a soft floor. A finite
element model of the reinforced concrete building was constructed and analyzed
in time domain under the ground motions of an earthquake centered on February
06, Maraş. The results of the study showed that the rubber-based base isolation
system significantly reduced the base shear forces, peak displacements, and
storey accelerations in the reinforced concrete building with soft story
effect. It is concluded that the use of base isolation systems can allow the
ground floor of a reinforced concrete building to develop soft storeys.