Abstract:

Seismic behavior of buildings is a subject that has been extensively researched in the past and today.In terms of seismic behavior, it is known that structural irregularities can cause heavy damages and collapses. The earthquake resistance of the building is directly dependent on the low system irregularities. For example, soft storey irregularity, which is one of the most common and important irregularities, can cause collapses where this irregularity is seen due to the formation of stiffness differences between floors and is generally seen in the first floors of buildings. According to the Turkish Building Earthquake Code, the main irregularities in only the plan are as follows: Torsional Irregularity, Slab Discontinuity Irregularity, Plan Geometry Irregularity, Non-Parallel Axes of Bearing Elements (Non-Orthogonal Irregularity). As it is known, in Turkey, more than half of its territory is located in the earthquake zone, many earthquakes have occurred in the past years and left permanent damage. Some of the reasons for these damages are wrong location selection, lack of knowledge-experience, low cost demand, desire for the construction to be completed quickly, and insufficient communication between designers. Sometimes, insensitive to earthquakes in seismic zones, new buildings continued to be built using existing and similar techniques and almost the same designs, instead of demolished buildings. Since the earthquake issue is too important to be taken lightly, it is necessary to raise the awareness of the whole society. Even at a basic level, the society can be informed about building irregularities, and this can create a compelling reason for designs to avoid architectural irregularities for the buildings to be built. For an earthquake safe structure; there should be an understanding of earthquake safe architecture. Because the building to be built must first be designed. The infrastructure of the design will be provided by including the earthquake design course as a separate and compulsory course in the architecture and engineering curriculum and improving the course content. Incorrect urbanization, non-compliance with the environmental order, construction of buildings adjacent to them, making them more irregular and large than necessary are among the factors that increase the damage. The shallow earthquake type, which has the greatest destructive effect, is the most common type of earthquake in our country. Therefore, it would be logical to avoid irregular designs in our country. In the light of this information, in this study, in order to understand the extent of the tendency towards architecturally irregular buildings in Turkey with a small-scale research and in certain lines, 420 buildings in the Atakum district of Samsun province were examined with the observational method and it was tried to determine which irregularities and and how preferable they are.

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