Evaluation of irregular reinforced concrete buildings according to different soil classes

Recep Tuğrul Erdem; Berk  Uyan

doi:10.7764/RDLC.24.1.183

Authors

Recep Tuğrul Erdem Department of Civil Engineering, Manisa Celal Bayar University, Manisa (Turkey)
Berk Uyan Department of Civil Engineering, Manisa Celal Bayar University, Manisa (Turkey)

DOI:

https://doi.org/10.7764/RDLC.24.1.183

Abstract

Determining the performances of existing reinforced concrete (RC) buildings under seismic effect is an important issue in structural engineering in terms of preventing losses that may occur in future earthquakes. Especially, a more detailed study is required to determine the behaviors of irregular buildings. In this study, seismic performances of existing RC buildings that have A3 irregularity defined in the Turkish Building Earthquake Code-2018 are investigated by non-linear static analysis method. Floor plans, story heights, material properties and section details of the structural members are common for the 3 modelled buildings. SAP2000 finite elements software is utilized in computer analyses. Performance analyses are performed for two local soil classes. Plasticization regions and plastic hinge definitions that are effective in the determination of seismic performance are carried out for each structural member according to lumped plasticity model. As a result of the performance analysis, performances of the buildings in different soil classes are investigated. In addition, seismic performances of the buildings with different story numbers and building heights in the same soil class are also evaluated. Analysis results are comparatively presented according to different local soil classes and building heights and suggestions are proposed for future studies.

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