asce 7-05. table 20.3-1 · asce 7-05. table 20.3-1 steffie 2010. peta gempa proposed awal ~...
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ASCE 7-05. Table 20.3-1
Steffie 2010
Peta Gempa Proposed Awal
~ 0.60g-0.70g
Misalkan: SS = 0.65gSteffie 2010
Peta Gempa Proposed Awal
~ 0.25g
Misalkan: S1 = 0.25gSteffie 2010
SS = 0.65g
Fa = 1.40
S1 = 0.25g
Fv = 3.0
ASCE 7-05
Steffie 2010
Adjusted Maximum Considered Earthquake (MCE) Spectral Response Accelerations
SMS = Fa SS = 1.40 (0.65g) = 0.91g
SM1 = Fv S1 = 3.0 (0.25g) = 0.75g
Design Spectral Response Acceleration Parameters
SDS = 2/3 SMS = 2/3 (0.91g) = 0.61g
SD1 = 2/3 SM1 = 2/3 (0.75g) = 0.50g
Steffie 2010
SNI 03-1726-2002
Steffie 2010
Jakarta -
Steffie 2010
Untuk Perioda T ≤ T0 ; Sa = (0.60) (SDS/To)T + 0.40 SDS
Untuk T = 0 ; Sa = 0.40 SDS = 0.40 (0.61g)
= 0.24g
Pada puncak kurva : Sa = SDS = 0.61g
Steffie 2010
SNI 03-1726-2002 (Tanah Lunak)
SNI 03-1726-2010 (Tanah Lunak)
Sa = (SD1)/T
Steffie 2010
Peta Gempa Proposed April 2010
April 2010
~ 0.60g
Steffie 2010
Peta Gempa Proposed April 2010
April 2010
~ 0.24g
Steffie 2010
SS = 0.60g
Fa = 1.50
S1 = 0.24g
Fv = 3.04
ASCE 7-05
Steffie 2010
Adjusted Maximum Considered Earthquake (MCE) Spectral Response Accelerations
SMS = Fa SS = 1.50 (0.60g) = 0.90g
SM1 = Fv S1 = 3.04 (0.24g) = 0.73g
Design Spectral Response Acceleration Parameters
SDS = 2/3 SMS = 2/3 (0.90g) = 0.60g
SD1 = 2/3 SM1 = 2/3 (0.73g) = 0.49g
Steffie 2010
Untuk Perioda T ≤ T0 ; Sa = (0.60) (SDS/To)T + 0.40 SDS
Untuk T = 0 ; Sa = 0.40 SDS = 0.40 (0.60g)
= 0.24g
Pada puncak kurva : Sa = SDS = 0.60g
Steffie 2010
Sa = (SD1)/T
SNI 03-1726-2002 (Tanah Lunak)
SNI 03-1726-2010 (Tanah Lunak)
Steffie 2010
Kesimpulan:Response spectra yang baru
SNI 03-1726-2010, untuk Jakarta menunjukkan nilai yang lebih rendah
dibandingkan dengan SNI 03-1726-2002
?????????????
Steffie 2010