Development of synthetic ground motion at a specific site in Yogyakarta town, Indonesia utilizing the PSHA Method

Pawirodikromo, Widodo; Makrup, Lalu; Teguh, Mochamad; Suryo, Bambang

doi:10.1051/e3sconf/202015602011

Cited by 2 publications

(2 citation statements)

References 14 publications

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“…Referring to Pawirodikromo et al [25], the de-aggregation results found that the dominant magnitude and the distance were influenced mainly by the shallow crustal instead of the Megathrust earthquake source. The MD= 6.5 and the RD= 14.5 km.…”

Section: Liquefaction Safety Factor (Fs)mentioning

confidence: 88%

Comparison of SPT and Vs-based Liquefaction Assessment on Young Volcanic Sediment: A Case Study in Bantul District of Yogyakarta, Indonesia

Amalina¹,

Fathani²,

Wilopo³

2022

Civense

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On May 26, 2006, an earthquake of moment magnitude (Mw) 6.3 occurred in Yogyakarta. The damages found in Bantul were predicted to be caused by liquefaction. Moreover, liquefaction symptoms were found, such as a sand boil and lateral spreading. It inferred that the damage was controlled by the amplification factors from young volcanic sediments that are redeposited and altered volcaniclastics from the active Mount Merapi. This study compared subsurface conditions based on two field investigation methods (SPT and Shear Wave Velocity) and determined the liquefaction potential by considering groundwater and the region's seismicity. Several equations to represent the N-SPT and Vs data were also analyzed to obtain the most fitted equation. As a result, several equations used in this study were inadequate to properly correlate N-SPT and Vs. A comparison of safety factor values indicated that the liquefaction potential in the studied area on the Vs-based method is lower than the result from the SPT-based method

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Section: Liquefaction Safety Factor (Fs)mentioning

confidence: 88%

Comparison of SPT and Vs-based Liquefaction Assessment on Young Volcanic Sediment: A Case Study in Bantul District of Yogyakarta, Indonesia

Amalina¹,

Fathani²,

Wilopo³

2022

Civense

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“…The research used spectral matching techniques with time domain, and did not use the 11 ground motion records as required by [3] and [11]. Synthetic ground motion in Special Region of Yogyakarta which was analyzed with spectral matching technique using 11 pairs of ground motion recordings was done by [12]. However, ground motion was only analyzed on bedrock without site response analysis to obtain ground motion and response spectrum on the ground surface.…”

Section: Introductionmentioning

confidence: 99%

Response Spectrum Design Based on Site Class and Site-Specific Analysis in the Transition Zone

Dwiyantoro,

Fathani,

Adi

2023

IOP Conf. Ser.: Earth Environ. Sci.

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The building structure design needs to pay attention to the seismic code and all its consequences. Building A which will be built in Sleman, Special Region of Yogyakarta is 12.20 km from the Opak Fault causing the Bantul Earthquake of Mw 6.3 in 2006, needs seismic analysis properly using SNI 1726:2019. Based on the site near fault criteria on seismic code, Building A does not belong to the site near fault category, so it used the Probabilistic Seismic Hazard Analysis method. However, considering its distance and magnitude, the value is in the range of the requirements limit. Hence, it is still relevant when compared to the Deterministic Seismic Hazard Analysis method for designing the response spectrum. Based on the site classification in the seismic code, a site that is vulnerable to liquefaction belongs to the site class F and therefore requires site-specific analysis. The site-specific surface response spectrum is taken from the equivalent-linear and non-linear site response analysis using Deepsoil v7.0 software. The response spectrum is also calculated based on site class according to the shear wave velocity (v s) and N-SPT criteria. The site-specific spectral acceleration results are compared to 80% of the site class E spectral acceleration, as required. The site belongs to site class D using v s criteria and belongs to site class E using the N-SPT criteria. Only the equivalent-linear site response spectrum in the modified maximum horizontal direction spectrum is eligible when compared to requirements. Most of the non-linear site response spectrum results or the geometric mean response spectrum of the equivalent-linear site response results can satisfy the requirements compared to 80% of the site class D spectral acceleration because the site response analysis uses the v s parameter. The non-linear site response spectral acceleration is smaller than the equivalent-linear site response spectral acceleration.

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Development of synthetic ground motion at a specific site in Yogyakarta town, Indonesia utilizing the PSHA Method

Cited by 2 publications

References 14 publications

Comparison of SPT and Vs-based Liquefaction Assessment on Young Volcanic Sediment: A Case Study in Bantul District of Yogyakarta, Indonesia

Comparison of SPT and Vs-based Liquefaction Assessment on Young Volcanic Sediment: A Case Study in Bantul District of Yogyakarta, Indonesia

Response Spectrum Design Based on Site Class and Site-Specific Analysis in the Transition Zone

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