In this study, a series of investigation was carried out considering Z1, Z2, Z3 and Z4 type soils stated in Turkish Earthquake Code 2007 (TEC-2007) for the reinforced concrete frame model having torsional irregularity (A1) and plan irregularities (A3) with high ductility level of L type central floor load-bearing system designed in accordance to TEC-2007. The investigated structure is an 8-floor school building having the building importance factor of I = 1.4 and existing in 1stdegree Seismic Zone. The earthquake analyses were performed with SAP2000 v.16.1.1. computer program by considering the Equivalent Seismic Load Method (ESLM) and Mode Combinaion Method (MCM). Base shear force, torsional force, overturning moment, effective mass participation ratio, building period, floor displacement and effective relative floor projection were calculated considering the commonly used calculation methods and the boundary conditions of TEC-2007 for different soil classes in terms of structure-soil interaction and compared according to commonly used calculation methods