Comparison of equivalent seismic load and response spectrum methods according to TSC 2018 and TSC 2007

In this study, two different analysis methods were compared; the first is a linear static analysis method and the second is a linear dynamic analysis method. First one is the Equivalent Seismic Load Method, which is a linear static method where seismic loads can be obtained by applying a simple calculation. The second method, the Response Spectrum method, is a linear dynamic analysis method which obtains the seismic loads using more complex statistical calculations. For this analysis study, 18 structural models with 3 different building heights were analyzed according to the conditions of Equivalent Seismic Load Method and Response Spectrum Method specified in both TSC 2007 and TSC 2018 and base shear forces obtained as a result of these analyzes were compared. As a result of analysis; compared to the results obtained from TSC 2007, due to the effective stiffness coefficients specified in TSC 2018, it was observed that the base shear forces obtained for both methods were lower and the modal period values were longer in the analyzes applied according to TSC 2018. This means that the structural systems created with the designs according to TSC 2018 are more ductile than the structural systems created with the designs made according to TSC 2007. Base shear forces obtained by 2 different analysis methods applied according to regulations stated in both TSC 2018 and TSC 2007; it was observed that the base shear forces obtained by the Equivalent Seismic Load Method were higher than the results of the Response Spectrum Method.


Arias H, Jaramillo JD (2019). Base shear determination using response-spectrum modal analysis of multi-degree-of-freedom systems with soil– structure interaction. Bulletin of Earthquake Engineering, 17(7), 1-14.

Arslan M, Olgun M, Köroğlu M, Erkan IH, Köken A, Tan O (2013). 19 May 2011 Kütahya–Simav earthquake and evaluation of existing sample RC buildings according to the TSC 2007 criteria. Natural Hazards and Earth System Sciences, 13(2), 505-522.

Dinçer F, Mert N (2014). Nonlinear static analysis of an existing reinforced concrete school building according to TSC 2007. Sakarya University Journal of Science, 18(1), 1-9.

Disaster and Emergency Management (2018). Turkish Seismic Hazard Maps Interactive Web App. AFAD, Ankara.

Doğan TP (2019). An Investigation on Overstrength Factor İn Reinforced Concrete Buildings. MSc thesis, Konya Technical University, Konya, Turkey.

Erkan IH, Doğan TP, Arslan MH (2019). Investigation for overstrength factor in reinforced concrete shear walled buildings. International Science and Academic Congress, Konya, Turkey, 447-456.

Kıran F (2010). Examination of Linear and Nonlinear Analysis Methods for Performance Analysis of Buildings. MSc thesis, Çukurova University, Adana, Turkey.

Koçer M, Nakipoğlu A, Oztürk B, Al-Hagri MG, Arslan MH (2018). Comparison of main spectral acceleration values for seismic loads according to TSC 2018 and TSC 2007. Selcuk-Technic Journal, 17(2), 43-58.

Köse D (2008). Determination of the Performance Level of a Reinforced Concrete Structure by Incremental Equivalent Seismic Load Method. MSc thesis, İstanbul Technical University, İstanbul, Turkey.

Pakoğlu H (2009). Design of a Multi-Storey Building According to TSC 2007 and Theoretical Comparison of TSC 2007 and IBC. MSc thesis, İstanbul Technical University, İstanbul, Turkey.

TSC 2007 (2007). Turkish Seismic Code 2007. Ministry of Public Works and Settlement, Ankara, Turkey.

TSC 2018 (2018). Turkish Seismic Code 2018. Disaster and Emergency Management, Ankara, Turkey.

TS 498 (1997). Turkish Standards 498. Calculation values of loads to be taken in sizing of structural elements, Turkish Standardization Institute, Ankara, Turkey.

Uzun D (2014). The Effect of Different Slab Systems on Earthquake Behavior of a 33-storey Reinforced Concrete Building. MSc thesis, İstanbul Technical University, İstanbul Turkey.

Yılmaz C (2008). Performance Evaluation of an Existing Reinforced Concrete Structure by Static Pushover Analysis. MSc thesis, İstanbul Technical University, İstanbul, Turkey.

Kaynak Göster