Page 130 - Çevre Şehir İklim İngilizce - Sayı 4

Seismic Isolation in Earthquake -
Resistant Structural Design for Resilient Cities

For the effective cross-sectional rigidity multipliers to be used in the modeling
of the structure, the values specified in Table 13.1. of TBDY (2018) were used.
Loads of the structure with concrete quality C35 and general characteristics of
the building are given in Table 1 by adapting to the model to be used here
from Polat et al. (2018). Spectral acceleration coefficients were obtained from
the Earthquake Hazard Map of Türkiye for location of the structure (İstanbul,
o
Mahmutbey, Latitude=41.0413046 o and Longitude=28.8371403 ) and DD1
and DD2 earthquake ground motion level. Local Soil Impact Coefficients, Local
Soil Class For ZC, it was taken into account as F =1.2 ve F =1.5 according to
s
1
Table 2.1 and 2.2 of TBDY (2018), and design spectral acceleration coefficients
were obtained for S DS ve S D1 , DD1 and DD2 levels according to Equation 2.1
of TBDY (2018). The obtained values and the horizontal elastic acceleration
spectra created using Equations 2.2 and 2.3 of TBDY (2018) are given in Figure
8(b) for the DD1 and DD2 earthquake levels.

(a) (b)
Figure 8. (a) Sample seismic insulated building, (b) Horizontal elastic spectrum for
DD1 and DD2

Table 1 - General characteristics of the building
Building Usage Class (BKS) BKS = 3 – TBDY (2018), Table 3.1
Building Importance Coefficient (I) I= 1.00 – TBDY (2018), Table 3.1
S DS = 1.1124 > 0.75 and DTS = 1 for BKS = 3
Earthquake Design Class (DTS)
TBDY (2018), Table 3.2
17.5m < H N ≤ 28 m and BYS = 5 for DTS=1
Building Height Class (BYS)
TBDY (2018), Table 3.3

Limited Damage under DD-2 (SH)
Superstructure Performance Target
TBDY (2018), Table 3.5

Year 2 / Issue 4 / July 2023 119