Developing Soil Liquefaction Analysis Program created on Visual Basic Analysis in MS Excel based on the 2018 Turkish Seismic Code

Abstract

The rapid increase in the world's population, the desire to revise old structures or to need new structures, and the decrease in usable areas in some big cities lead engineers to examine ground conditions more. Due to Turkey's location and geological structure, earthquake occurrences are quite high. The loss of life and property, which has increased with the earthquakes that have occurred in our country in recent years, has been examined and it has been seen that this situation is related to the ground factor rather than the superstructure design inadequacies. In this sense, the main goal of investors is to optimize the profit to be obtained by providing the aesthetics of the superstructure, comfort, and interior quality in building projects such as residences and offices. For this reason, geotechnical design is becoming a discipline that needs to be solved most economically. Starting the investment without paying due attention to the seismicity of the ground in the investment budgets, when the risk of liquefaction in the ground may come to the fore, it is possible to avoid unaccounted ground improvement methods, so new buildings with the risk of soil liquefaction are added to the unsafe old building stock. With the 2018 Seismic Code in Turkey, liquefaction on the ground and different problems that occur in the ground have been examined in more detail. Within the scope of the study, it was focused on getting faster results with faster and on-site determinations of the liquefaction situation on the ground, thanks to the Visual Basic application program prepared in Excel. In this sense, with the program prepared as the aim of the study, it is aimed to enable the construction of the soil liquefaction analysis to be made quickly and with less cost and to start the construction with a realistic budget and structural models. The program continuously increases its sensitivity and accuracy with additional inputs. This allows geotechnical engineers to achieve faster and earlier results Earthquake; Soil Liquefaction; TBDY; 2018 Turkish Seismic Code Regulation

Keywords

• Earhquake
• Soil Liquefaction
• TBDY
• 2018 Turkish Seismic Code Regulation

Kaynakça

1. Yeşilce, Y. veDemirdağ O., 2020. DepremParametreleri, DepremSempozyumu.
2. Dülger, M., 2015. UBCSAND model ilesıvılaşmadavranışınınincelenmesi, YüksekLisansTezi, Yıldız Teknik Üniversitesi Fen BilimleriEnstitüsü, İstanbul.
3. TMMOB JeolojiMühendisleriOdası, 2019. “Türkiye Bina DepremYönetmeliği İle UyumluBasitleştirilmiş Zemin SıvılaşmaPotansiyeliAnaliziHesabı”, Seminer, Ankara.
4. Wells, D.L., ve Coppersmith, K.J., 1994. New empirical relationships among magnitude, rupture length, rupture width, rupture area, and surface displacement: Bulletin Seismological Society of America, v. 84, p. 974–1002.
5. Seed, HB., Idriss, IM., 1971. Simplified Procedure for Evaluating Soil Liquefaction Potential, Journal of the Soil Mechanics and Foundations Division, 97, pp. 1249-1273.
6. Sykora, D. W., 1987. Cretation of a Data Base of Seismic Shear Wave Velocities for Correlation Analysis. Geotechnical Laboratory Miscellaneous Paper GL87-26, U.S. Army Engineer Waterways Experiment Station, Vicksburg, MS.
7. Robertson, P.K., Woeller, D.J., Finn, W.D.L., 1992. Seismic Cone Penetration Test for Evaluating Liquefaction Potential Under Cyclic Loading. Canadian Geotechnical Journal, Ottawa, 29, 686- 695.
8. Andrus, R.D., Stokoe II, K.H., 1997. Liquefaction Resistance Based on Shear Wave Velocity. NCEER Workshop on Evaluation of Liquefaction Resistance Of Soils, Technical Report NCEER-97-0022, T.L.Youd and I.M. Idriss, (Eds.), Held (1996), Salt Lake City, UT, Buffalo, NY, 89-128.

9. Andrus, R.D., Stokoe II, K.H., 1999. A Liquefaction Evaluation Procedure Based on Shear Wave Velocity. Wind and Seismic Effects US/Japan Natural Resources Devolopment Program Joint Meeting 31st Technical Memorandum of PWRI 3653 Proceedings 71-78.
10. Andrus, R.D., Stokoe II, K.H., 2000. Liquefaction Resistance of Soils from Shear-Wave Velocity. Journal of Geotechnical and Geoenvironmental Engineering, (ASCE) 126, 1015-1025.
11. Uyanık, O., 2002. KaymaDalgaHızınaBağlıPotansiyelSıvılaşmaAnalizYöntemi, DoktoraTezi, DEU. Fen BilimleriEnstitüsü, İzmir.
12. TBDY (TBSC), 2018. Türkiye Bina DepremYönetmeliği 2018: DepremEtkisiAltındaBinalarınTasarımıiçinEsaslar”, TürkiyeCumhuriyeti, Ankara.