Vol 22, No 1 (2018) > Civil Engineering and Architecture >

Seismic Response Analysis along the Coastal Area of Bengkulu during the September 2007 Earthquake

Lindung Zalbuin Mase 1

Affiliations:

  1. Department of Civil Engineering, Faculty of Engineering, Universitas Bengkulu, Bengkulu 38371, Indonesia

 

Abstract: On 12 September 2007, the strong earthquake of 8.4 Mw occured at Sumatra Subduction Zone. One area that underwent the impact of the earthquake was along coastal area of Bengkulu Province. Referring to the event, a seismic ground response study was performed. Several site investigations including SPT and Shear Wave Velocity tests were conducted to understand subsoils condition. Furthermore, the data was used to analyze a ground response during the earthquake. The amplification factor of each site and the comparison of spectral acceleration comparison were performed. The results showed that the study area could undergo the amplification factor ranging 1.1 to 1.5 during seismic wave propagation. The spectal acceleration resulted from seismic response analysis was also within design value. In general, the study results could bring an attention to the local engineer to consider the seismic design value for coastal area of Bengkulu Province, particulary if the stronger earthquake happens in the future.
Keywords: earthquake, Bengkulu, seismic ground response analysis, spectral acceleration
Published at: Vol 22, No 1 (2018) pages: 37-45
DOI:

Access Counter: 94 views, 86 PDF downloads, .

Full PDF Download

References:

Earthquake Engineering Research Institute (EERI), Learning from Earthquakes Observation on the Southern Sumatra Earthquakes of September 12-13, 2007. EERI, Oakland, USA, 2007. http://eeri.org/ lfe/pdf/indonesai_south _sumatra_eeri_report.pdf

L.Z. Mase, Undergraduate Thesis, Department of Civil Engineering, Faculty of Engineering, University of Bengkulu, Indonesia, 2010. (Text in Indonesian).

L.Z. Mase, Teknosia. 15/2 (2016) 20.

R Misiniyati, Mawardi, Besperi, M.R Razali, R. Muktadir, Inersia. 5/2 (2013) 1. (in Indonesian).

A. Monalisa, Undergraduate Thesis, Department of Civil Engineering, Faculty of Engineering, University of Bengkulu, Indonesia, 2014. (in Indonesian).

L.Z. Mase, A.K Somantri, Potensi. 25/1 (2016) 1. (in Indonesian).

L.Z. Mase, A.K Somantri, Proceeding of Geo-technics National Seminar, Yogyakarta, Indonesia, 2016, p.81.

H.B. Seed, I.M. Idriss, Soil Mechanics. Found. ASCE. 97/SM9 (1971) 1249.

I.M. Idriss, R.W. Boulanger, Soil Dyn. Earthq. Eng. 26/1 (2006) 115.

SNI-1726-2002, Standard of Earthquake Resistance Design for Building Structures (Indonesian Seismic Design Code), Department of Public Works, Jakarta. Indonesia, 2012.

SNI-1726-2012, Standard of Earthquake Resistance Design for Building Structures (Indonesian Seismic Design Code) Indonesia Seismic Design Code, Standardization National Agency of Indonesia, Jakarta, Indonesia, 2012.

Centre of Earthquake Strong Motion Data (CESMD), Earthquake Ground Motion recorded at Sikuai Island Station-West Sumatra, Indonesia in 12/09/2007, CESMD, https://www.strongmotion center.org. 2017. (accessed on 13/04/ 2017).

National Earthquake Earthquake Hazard Reduction Program (NEHRP), Recommended Provisions for Seismic Regulation for New Buildings and Other Structures 1997 Edition, FEMA 302, Washington, USA, 1998.

.S. Iai, Y. Matsunaga, T. Kameoka, Soils Found. 32/2 (1992) 1.

.S. Iai, Y. Matsunaga, T. Kameoka, Soils Found. 32/2 (1992) 16.

.S. Sawada, O. Ozatsumi, S. Iai, Prooceeding of the 12th World Conference in Earthquake Engineering, Auckland, New Zealand, 2000, p.2486.

.R.R. Youngs, S-J. Chiou, W.J. Silva, J.R. Humprey, Seismol. Res. Lett. 68/1 (1997) 58.

.SeismoArtif, Artificial Ground Motion Program. Seismosoft company., downloaded from http://www.seismosoft.com. 2017.

.N. Yoshida, Seismic Ground Response Analysis, Springer, UK, 2015.