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All Journal Buletin GAW Bariri ( BGB) Journal of Engineering and Technological Sciences
Rahman, Aditya Setyo
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Aerospace Engineering Agriculture, Biological Sciences & Forestry Astronomy Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Earth & Planetary Sciences Electrical & Electronics Engineering Environmental Science

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Identifikasi Klasifikasi Jenis Tanah Berdasarkan Nilai Kecepatan Gelombang Geser Vs30 di Daerah Bekasi Rahman, Aditya Setyo; Sutiyono, Sutiyono; Cindiwati, Cindiwati; Alfiandy, Solih
Buletin GAW Bariri (BGB) Vol 5 No 2 (2024): BULETIN GAW BARIRI
Publisher : Stasiun Pemantau Atmosfer Global Lore Lindu Bariri - Palu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31172/bgb.v5i2.121

Abstract

The complex geological and tectonic conditions of Bekasi are interesting to study the soil layers for sustainable development. This research was conducted to analyze soil types in the Bekasi area based on the USGS topographic Vs30 value. The data used were 613 research location points with a distance of approximately 1 km. The results showed that the Vs30 value in the Bekasi area ranged from 125.5479965 m/s to 316.0310059 m/s. Based on SNI 1726:2019, the entire Bekasi area is classified as soft to medium soil types. The majority of all sub-districts in Bekasi have a soft soil type classification, such as in the areas of Muaragembong, Cabangbungin, Babelan, Tarumajaya, Tambelang, Sukatani, Pebayuran, Kedung Waringin, and parts of Tambun. The medium soil type classification is in the southern part of Tambun sub-district, a small part in the southern part of Tambelang and Sukatani sub-districts, and a small part in the north and south of Muaragembong sub – district.
Analisis Potensi Pergerakan Tanah Berdasarkan Ground Shear Strain Untuk Wilayah Bekasi Rahman, Aditya Setyo; Sutiyono, Sutiyono; Wardaningsih, Kuurnia; Istofiyah, Istofiyah; Cindiwati, Cindiwati; Alfiandy, Solih
Buletin GAW Bariri (BGB) Vol 5 No 2 (2024): BULETIN GAW BARIRI
Publisher : Stasiun Pemantau Atmosfer Global Lore Lindu Bariri - Palu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31172/bgb.v5i2.122

Abstract

This study analyzes the Ground Shear Strain (GSS) values and predicts earthquake vibration phenomena in the Bekasi area. The results show that the GSS values are relatively low (0.14 - 0.20), indicating a low level of vulnerability to earthquake shaking. At PGA 0.22 - 0.302 g, it is predicted that only the wave vibration phenomenon will occur (ground vibration is felt, not damaging). Despite the low vulnerability level, it is important to remain vigilant and carry out earthquake mitigation, such as building earthquake-resistant structures and preparing evacuation plans.
Correction to: Investigation of Liquefaction in Balaroa, Petobo, and Jonooge (Central Sulawesi, Indonesia) Caused by the 2018 Palu Earthquake Sequence Triyono, Rahmat; Widiyantoro, Sri; Zulfakriza, Zulfakriza; Supendi, Pepen; Rahman, Aditya Setyo; Gunawan, Mohamad Taufik; Oktavia, Nur Hidayati; Rahmatullah, Fajri Syukur; Fadhilah, Fildzah Zaniati; Habibah, Nur Fani; Sativa, Oriza; Permana, Dadang; Wallansha, Robby; Octantyo, Ardian Yudhi; Persada, Yoga Dharma; Pranata, Bayu; Sujabar, Sujabar
Journal of Engineering and Technological Sciences Vol. 57 No. 2 (2025): Vol. 57 No. 2 (2025): April
Publisher : Directorate for Research and Community Services, Institut Teknologi Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/j.eng.technol.sci.2025.57.2.10

Abstract

Correction to:  Journal of Engineering and Technological Sciences https://doi.org/10.5614/j.eng.technol.sci.2024.56.3.1   The article titled "Investigation of Liquefaction in Balaroa, Petobo, and Jonooge (Central Sulawesi, Indonesia) Caused by the 2018 Palu Earthquake Sequence" , written by Rahmat Triyono, Sri Widiyantoro, Zulfakriza, Pepen Supendi, Aditya Setyo Rahman, Mohamad Taufik Gunawan, Nur Hidayati Oktavia, Fajri Syukur Rahmatullah,Fildzah Zaniati Fadhilah, Nur Fani Habibah, Oriza Sativa, Dadang Permana, Robby Wallansha, Ardian Yudhi Octantyo, Yoga Dharma Persada, Bayu Pranata, and Sujabar, was originally published electronically on thepublisher’s internet portal on 19 June 2024 . The corresponding author's affiliation at the time of publication was as follows: (1) Indonesian Agency of Meteorology, Climatology, and Geophysics, Jalan Angkasa 1 No. 2, Jakarta 10610, Indonesia; and (2) Global Geophysics Research Group, Faculty of Mining and Petroleum Engineering, Institut Teknologi Bandung, Jalan Ganesa No. 10, Bandung 40132, Indonesia.   Subsequently, the authors decided to update the corresponding author's affiliation to: (1) Geophysical Engineering Graduate Program, Faculty of Mining and Petroleum Engineering, Institut Teknologi Bandung, Jalan Ganesa No. 10, Bandung 40132, Indonesia; and (2) Indonesian Agency of Meteorology, Climatology, and Geophysics, Jalan Angkasa 1 No. 2, Jakarta 10610, Indonesia.   The original article can be found online at https://doi.org/10.5614/j.eng.technol.sci.2024.56.3.1
Analisis Mikrotremor untuk Bangunan X, Y dan Z di Wilayah Jakarta dan Sekitarnya dengan Menggunakan Metode Floor Spectral Ratio (FSR) dan Random Decrement Method (RDM) Rahman, Aditya Setyo; Faisal, Muh Dede; Efendi, Hasan Arif
Buletin GAW Bariri (BGB) Vol 5 No 1 (2024): BULETIN GAW BARIRI
Publisher : Stasiun Pemantau Atmosfer Global Lore Lindu Bariri - Palu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31172/bgb.v5i1.119

Abstract

Jakarta merupakan salah satu kota yang paling pesat pembangunannya di Indonesia dan banyak terdapat gedung – gedung bertingkat yang dibangun. Gedung – gedung ini rawan terjadi kerusakan akibat guncangan gempabumi yang terjadi, di mana kerusakan bangunan dengan skala besar dapat menyebabkan jatuhnya korban jiwa. Analisis mikrotremor untuk bangunan bertingkat tinggi dilakukan dengan tujuan untuk mengetahui karakterisktik dari suatu bangunan dengan mengetahui periode dominan, frekuensi natural, amplifikasi, Damping Ratio dan tingkat kekuatan bangunan serta melakukan analisis terhadap bangunan tersebut. Analisis mikrotremor yang dilakukan terhadap bangunan X, Y, dan Z di wilayah Jakarta dan sekitarnya menggunakan metode Floor Spectral Ratio (FSR) dan Random Decrement Method (RDM) serta diolah menggunakan software geopsy. Hasil penelitian menunjukkan bahwa semakin kecil frekuensi natural yang dimiliki suatu gedung, maka semakin besar amplifikasinya. Pada lokasi yang berbeda, kegunaan dari bangunan serta usia dari suatu gedung dapat menjadi faktor penentu karakterisktik suatu bangunan baik itu dari frekuensi natural, amplifikasi, indeks kerentanan maupun Damping Ratio yang dimiliki.  Analisis FSR di dapatkan hasil untuk dari ketiga gedung memiliki range frekuensi antara 0.63Hz – 0.91Hz, amplifikasi antara 1.72 – 10.31 dan indeks kerentanan dari 109.08 – 562.93, serta nilai RDM yang bernilai 0.95Hz – 1.10Hz. Untuk frekuensi naturalnya dan memiliki Damping Ratio antara 0.54 – 2.32%.
Investigation of Liquefaction in Balaroa, Petobo, and Jonooge (Central Sulawesi, Indonesia) Caused by the 2018 Palu Earthquake Sequence Triyono, Rahmat; Widiyantoro, Sri; Zulfakriza, Zulfakriza; Supendi, Pepen; Rahman, Aditya Setyo; Gunawan, Mohamad Taufik; Oktavia, Nur Hidayati; Rahmatullah, Fajri Syukur; Fadhilah, Fildzah Zaniati; Habibah, Nur Fani; Sativa, Oriza; Permana, Dadang; Wallansha, Robby; Octantyo, Ardian Yudhi; Persada, Yoga Dharma; Pranata, Bayu; Sujabar, Sujabar
Journal of Engineering and Technological Sciences Vol. 56 No. 3 (2024)
Publisher : Directorate for Research and Community Services, Institut Teknologi Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/j.eng.technol.sci.2024.56.3.1

Abstract

The liquefaction that occurred in the city of Palu on September 28, 2018, was caused by a series of significant earthquakes that took place in a relatively short time around 25 minutes after the main earthquake of magnitude 7.5. This event was followed by aftershocks of magnitudes 6.4, 6.2, and 6.1. The magnitude 6.2 aftershock occurred at 10.16 UTC, while the magnitude 6.1 aftershock occurred at 10.25 UTC. These were both located very close to the liquefaction locations in Balaroa, Petobo, and Jono Oge. We investigated the mainshock and the three aftershocks using the NCEER method based on Vs30 measurements and data from the drill liquefaction locations at Balaroa, Petobo, and Jono Oge. We found that the liquefaction was not only caused by the main earthquake but also by the subsequent aftershocks that occurred within 25 minutes after the mainshock.
Co-Authors Alfiandy, Solih Bayu Pranata, Bayu Cindiwati, Cindiwati Efendi, Hasan Arif Fadhilah, Fildzah Zaniati Faisal, Muh Dede Gunawan, Mohamad Taufik Habibah, Nur Fani Istofiyah, Istofiyah Octantyo, Ardian Yudhi Oktavia, Nur Hidayati Permana, Dadang Persada, Yoga Dharma Rahmatullah, Fajri Syukur Sativa, Oriza Sri Widiyantoro Sujabar, Sujabar Supendi, Pepen sutiyono sutiyono Triyono, Rahmat Wallansha, Robby Wardaningsih, Kuurnia Zulfakriza, Zulfakriza