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In this paper, the seismic performance results based on the nonlinear static analysis of 2D reinforced concrete (RC) moment resisting frames (MRFs) are evaluated in view of the latest Turkish Earthquake Code (TEC-2018) as a case study by considering soil-structure interaction (SSI). The numerical applications of this work based on displacement base analysis covers RC buildings of 2, 4 and 8 stories which was designed with respect to TEC-2018. Different soil types for Adapazari region ranging from very stiff to very soft soils according to TEC-2018 soil classification are considered in order to better realize the SSI effects. The compliance of the supported soil for each single square type footings was considered according to the spring stiffness coefficients condensed at a single point on the foundation-soil interface. The stiffness parameters of springs for each degree of freedom are calculated by means of impedance functions for rigid footings at the ground surface, suggested by seismic evaluation and retrofit of concrete buildings (ATC-40). Nonlinear pushover analysis and performance evaluations are performed by SAP2000 computer package. The results obtained from SSI models are compared with fixed base models in terms of roof displacement-base shear force relationships, inter-story drifts, periods and ground columns damage levels.
International Science and Engineering Application Symposium on Hazards
ISESH
Mukhtar Ahmadi
Erkan Çelebi