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All Journal Jurnal Inovasi Konstruksi Jurnal Teknik Sipil
Al Atas, Zaenal Abidin
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Civil Engineering, Building, Construction & Architecture Engineering Transportation

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IDENTIFIKASI KERENTANAN BANGUNAN DI KOTA LANGSA AKIBAT BAHAYA GEMPA DAN KELAS SITUS Fajri, Haikal; Irwansyah, Irwansyah; Fahriana, Nina; Basrin, Defry; Al Atas, Zaenal Abidin
JURNAL TEKNIK SIPIL Vol 12, No 1 (2023): Volume 12 Nomor 1 Mei 2023
Publisher : Jurusan Teknik Sipil, Fakultas Teknik, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jts.v12i1.31884

Abstract

Globally, Aceh Province is an earthquake-prone area, especially earthquakes with an epicenter on land, such as the 2013 in Central Aceh with a magnitude of 6,1; the 2016in Pidie Jaya with a magnitude of 6,5 which damaged more than 10.000 buildings, and killed 85.000 people, according to a report from the Aceh disaster management agency (BPBA).The BMKG recorded an earthquake measuring M 5,3 on 27 September 2018 with the epicenter location on land with a depth of 10 km. Recently on 3 December 2020, an earthquake measuring M 4,9 occurred at a location very close to the previous earthquake. Having this phenomenon, as well as the close distance between the epicenter and the city center, this study aims to identify the risk of vulnerability of residential buildings in the city center to potential earthquakes and class of soil sites (Vs30). The ground motion equation was carried out with scenario of SA to SF soil site class with the epicenter point 22,48 km from the city center at a depth of 10 km. The type of building that has the greatest probability of failure is the C3L, while the sturdiest building is the RM2M type. Therefore, preliminary results indicate that the HAZUS tool has an advantage in estimating the risks and losses that will in the future provide protection to buildings.
Dominant Frequency and Power Spectral Density Analysis for Determining the Location of Earthquake Shelters in the Rukoh Dam, Pidie Jihad, Abdi; Ardiyansyah, Tommy; Al Atas, Zaenal Abidin; Fajaruddin, Fajaruddin; Rusdin, Andi Azhar; P. N., T. Agus Putra
Jurnal Inovasi Konstruksi Vol 4, No 2 (2025): October
Publisher : Politeknik Pekerjaan Umum

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56911/jik.v4i2.180

Abstract

Seismic activity around the Rukoh Dam, Pidie Regency, Aceh Province, is affected by two active fault systems, the Aceh Fault and the Seulimeum Fault. This condition requires a detailed study of soil response characteristics to support earthquake-resistant infrastructure planning, especially in determining the location of earthquake shelters. This study aims to evaluate the suitability of three potential earthquake shelter locations around the Rukoh Dam using microtremor data. Meanwhile, data analysis was carried out using the Horizontal to Vertical (H/V) spectral ratio method to determine the dominant frequency of the soil (Fo) and Power Spectral Density (PSD) to assess the characterization of the location. The results of the analysis showed that Point 1 had the highest Fo (5.0 Hz) and the shallowest sediment thickness (~15 m) which indicated stiff soil conditions and low seismic amplification potential. In contrast, points 2 and 3 showed lower Fo (2.0 Hz and 1.6 Hz, respectively) with a sediment thickness of 35 m, indicating a higher risk of amplification. Point 1 is recommended as a permanent shelter location, while points 2 and 3 require structural strengthening or alternative utilization.
Co-Authors Ardiyansyah, Tommy Defry Basrin Fahriana, Nina Fajaruddin, Fajaruddin Fajri, Haikal Irwansyah Irwansyah Jihad, Abdi P. N., T. Agus Putra Rusdin, Andi Azhar