Akademik Veri Yönetim Sistemi
6th International Conference on Computational Mathematics and Engineering Sciences / 20-22 May. 2022, Ordu – Turkey, Ordu, Türkiye, 20 Mayıs - 22 Haziran 2022, cilt.1, sa.1, ss.21-43
In today's Standards, many methods
are used for the structural evaluation of reinforced concrete buildings, such
as non-linear analysis in the time integration, unimodal and multimodal static
pushover analysis, and summing of modes. In the literature, the evaluation of
energy-based structures is a subject that has not been studied much. In addition, the criteria for this method are not
specified in any Standard. The energy-based evaluation method is compared with
the capacity curve of the structure (base shear force-peak displacement curve)
by calculating the input energies to be generated by the earthquake in the
building. If the earthquake energy demands in the building remain below this
capacity curve, the damage levels are not foreseen for the building, but if it
stays above the capacity curves, it is based on the principle that damage to
the structure is likely to occur. The input energy of the earthquake
can be dissipated with the plastic deformations that the structures can make
without collapse, the kinetic energy depending on the mass of the structure in
the elastic region, and the energy dissipated by viscous damping. In this study, the energy capacity of a 4-storey
reinforced concrete structure, which does not have the risk of soil
amplification, at 39.9026 Latitude and 41.2498 Longitude coordinates, was
calculated by obtaining the base shear force - peak displacement curve using
the pushover analysis method. Then, the minimum and maximum earthquakes in 2020
and 2021 affecting the structure were given as input, and the demand energies
created by the earthquakes in the structure were calculated. By showing how much of these earthquake
energies the building can dissipate, damage ındex were determined and the
damage levels of the building were determined. In the calculation of the demand energies of the
earthquake, the analysis method in the time domain defined in the Turkish
Building Earthquake Code 2018 was applied. At the end of the study, the amount
of energy required to be stored in the structure is shown in order to
distribute the energy of an earthquake without damaging the structure.