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All Journal Rekayasa Sipil Teknisia Gravity : Jurnal Ilmiah Penelitian dan Pembelajaran Fisika Wahana Teknik Sipil: Jurnal Pengembangan Teknik Sipil SIKLUS: Jurnal Teknik Sipil APTEK Jurnal Geosaintek
Rena Misliniyati
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Astronomy Civil Engineering, Building, Construction & Architecture Earth & Planetary Sciences Education Engineering Materials Science & Nanotechnology Physics Transportation

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Studi Perbandingan Linier Ekuivalen dan Nonlinier pada Respon Seismik di Daerah Pesisir Annisa Zahara; Mase, Lindung Zalbuin; Fepy Supriani; Rena Misliniyati; Khairul Amri
Siklus : Jurnal Teknik Sipil Vol. 10 No. 2 (2024): Siklus : Jurnal Teknik Sipil
Publisher : Program Studi Teknik Sipil Fakultas Teknik Universitas Lancang Kuning

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31849/siklus.v10i2.20670

Abstract

Area pesisir Kota Bengkulu terletak pada posisi strategis di pertemuan lempeng Indo-Australia dan Eurasia, menjadikannya sebagai wilayah dengan risiko tinggi terhadap aktivitas seismik. Pertemuan lempeng ini menyebabkan intensitas gempa yang signifikan sehingga berdampak pada berbagai permasalahan geoteknik di kawasan tersebut. Penelitian ini bertujuan untuk mengetahui perbandingan dua metode analisis, yaitu linier ekuivalen dan nonlinier dalam menilai respon seismik pada wilayah pesisir Kota Bengkulu serta menguji keandalannya dalam analisis respon seismik. Metodologi yang digunakan mencakup studi literatur, pengumpulan data, dan analisis respon seismik menggunakan perbandingan metode linier ekuivalen dan nonlinier model Pressure Dependent Hyperbolic (PDH) yang menghasilkan Peak Ground Acceleration (PGA), percepatan respon spektra, dan faktor amplifikasi. Hasil analisis mengindikasikan respon spektra melampaui spektra desain pada periode 0,1-0,4 detik, yang dapat membahayakan bangunan berlantai rendah. Metode nonlinier memiliki faktor amplifikasi sebesar 0,91–1,52g, sementara metode linier ekuivalen sebesar 1,01–1,60g, yang menunjukkan bahwa metode linier ekuivalen berpotensi menyebabkan kerusakan struktural yang lebih besar. Selain itu, metode linier ekuivalen menghasilkan nilai PGA yang lebih tinggi di permukaan, tetapi lebih rendah di lapisan bawah jika dibandingkan dengan metode nonlinier. Secara keseluruhan, metode linier ekuivalen memberikan hasil yang lebih konservatif, terutama dalam analisis struktur sederhana dengan nilai PGA kecil. Sebaliknya, metode nonlinier lebih akurat dalam memperhitungkan perilaku nonlinier tanah, terutama pada percepatan gempa besar. Penelitian ini mengindikasikan perlu adanya studi lanjutan mengenai analisis bangunan gedung pada kawasan pesisir kota bengkulu untuk mengidentifikasi risiko yang lebih spesifik terkait infrastruktur yang ada.
Analisis Kinerja Jaringan Jalan Di Kawasan Pelabuhan Pulau Baai Kota Bengkulu Untuk Rencana Jalur Mitigasi Bencana Tsunami Maha Deta Winusi; Hardiansyah; Lindung Zalbuin Mase; Rena Misliniyati; Fepy Supriani
Aptek Jurnal Apliksai Teknologi (APTEK): Volume 17, No. 02, Juni 2025
Publisher : Fakultas Teknik Universitas Pasir Pengaraian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30606/aptek.v17i2.3341

Abstract

Pulau Baai Port in Bengkulu City is a densely active area with a high risk of being affected by a tsunami disaster. This study aims to model the road network and analyze its performance during evacuation using the Four Step Model method. Surveys were conducted to assess existing conditions, build evacuation movement scenarios, and model the effect of road capacity improvements. The results show an R² value of 0.8502, indicating that the modeling is valid compared to real field conditions. The evacuation modeling produced the highest degree of saturation on several road segments, reaching 0.91, 0.75, and 0.70, indicating a high risk of congestion during evacuation. Increasing road capacity proved effective in reducing traffic density, lowering the degree of saturation to 0.78, 0.69, and 0.54. Therefore, road widening can serve as an effective solution for planning better evacuation routes.
Studi Perbandingan Respons Seismik Tanah Berdasarkan Metode Linier Ekuivalen Dan Nonlinier Ahmad, Debby Ariansyah; Mase, Lindung Zalbuin; Fepy Supriani; Rena Misliniyati; Khairul Amri
Siklus : Jurnal Teknik Sipil Vol. 11 No. 1 (2025): Siklus: Jurnal Teknik Sipil
Publisher : Program Studi Teknik Sipil Fakultas Teknik Universitas Lancang Kuning

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31849/siklus.v11i1.20669

Abstract

Sejarah kegempaan Bengkulu mencatat bahwa gempa bumi berkekuatan 8,6 Mw tahun 2007 merupakan gempa terbesar yang melanda Provinsi Bengkulu. Gempa tersebut menimbulkan dampak yang besar sehingga banyak menelan korban jiwa dan menghancurkan fasilitas umum terutama di wilayah Pesisir Selatan Provinsi Bengkulu. Merujuk pada kejadian tersebut, dilakukan sebuah analisis respons seismik tanah. Penelitian ini bertujuan untuk membandingkan respons tanah terhadap gempa dengan metode linier ekuivalen dan metode nonlinier. Informasi yang berkaitan dengan profil tanah dan data gelombang gempa berdasarkan gempa yang pernah terjadi di Kota Bengkulu dikumpulkan. Tahapan analisis respons seismik linier ekuivalen dan nonlinier satu dimensi menggunakan program analisis respons seismik satu dimensi DeepSoil. Peak Ground Acceleration (PGA), riwayat waktu percepatan gempa, respons spektra percepatan, dan faktor amplifikasi dianalisis dalam studi ini. Penelitian memperlihatkan bahwa model linier ekuivalen menghasilkan nilai lebih besar dari pada model nonlinier dalam setiap parameter yang dianalisis. Nilai PGA model nonlinier adalah 0,31g - 0,51g. Sedangkan nilai PGA model linier ekuivalen adalah 0,46g - 0,60g. Nilai PGA menunjukkan bahwa area penelitian memiliki kerentanan seismik yang tinggi. Respons spektra percepatan telah melebihi desain seismik yang berlaku. Percepatan respons spektra lapisan mencapai nilai maksimum pada periode 0,2 sampai 1 detik dengan nilai percepatan 0,10g sampai 2,74g. Nilai amplifikasi metode nonlinier adalah 0,94 - 1,65. Sedangkan nilai amplifikasi metode linier ekuivalen adalah 1,38 - 1,82. Hasil analisis terhadap faktor amplifikasi dan respons spektra percepatan menunjukkan perlunya pembaruan desain respons seismik untuk perencanaan gedung di Pesisir Selatan Provinsi Bengkulu.
Analysis of Factors Affecting Labour Productivity of Lightweight Masonry Sartika Meitry; Fepy Supriani; Lindung Zalbuin Mase; Hardiansyah; Rena Misliniyati
Rekayasa Sipil Vol. 19 No. 2 (2025): Rekayasa Sipil Vol. 19 No. 2
Publisher : Department of Civil Engineering, Faculty of Engineering, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.rekayasasipil.2025.019.02.14

Abstract

Labour productivity plays an important role in determining the success of a construction project, especially in lightweight masonry work, which requires high skills and affects not only the aesthetic aspect but also the durability of the building with lightweight materials suitable for high-rise buildings. This study aims to analyse the factors affecting the productivity of lightweight masonry labour on The Establishment of the University of Bengkulu's Hospital Project. The research method used is direct observation in the field, with the work sampling method using the productivity rating approach to calculate the labour utilization rate (LUR) level. The questionnaires were distributed to lightweight masonry workers to identify factors that affect productivity. Data were analysed using validity tests, reliability tests, and the Relative Importance Index (RII) analysis, and relationships between factors were looked for using matrix correlation. The results showed that the average LUR for the level of productivity of lightweight masonry labour was 63.89% which was categorised as productive because it was above 50% with the dominant factor affecting field conditions including the availability of tools, weather, and relationships between workers with an RII value of 0.88 which is included in the high level of importance. The findings contribute to managing labour productivity in construction projects and recommend improving tool management and fostering teamwork in the field.
Analysis of Building Structure Dynamics Due to Earthquake Loads Mely Anisa; Lindung Zalbuin Mase; Hardiansyah Hardiansyah; Rena Misliniyati; Khairul Amri
Rekayasa Sipil Vol. 20 No. 1 (2026): Rekayasa Sipil Vol. 20 No. 1
Publisher : Department of Civil Engineering, Faculty of Engineering, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.rekayasasipil.2026.020.01.13

Abstract

This study aims to assess the impact of earthquakes on the Professional Programme Lecture Building at the Faculty of Teacher Training and Education (FTTE), Bengkulu University, by integrating soil response analysis and structural dynamics. The research began with the collection of geological data at the research site. Seismic soil response analysis was conducted to assess soil movement at the end of the piles, followed by earthquake wave propagation to evaluate the building's response to earthquake activity using the Finite Element Method (FEM). Based on load ratio evaluations, beam B2 and column C2 on the second floor of the building were identified as having structural weaknesses. Therefore, retrofitting techniques were applied to increase the load capacity of the structure. The results showed that retrofitting provided significant improvements in structural performance. This research highlights the importance of integrating soil response analysis with structural dynamics to enhance the resilience and safety of buildings in earthquake-prone areas.
Analisis Sensitivitas Kinerja Ruas Jalan Akibat Aktivitas Sekolah IT Rabbani Pada Jalan Mayjen Sutoyo Kota Bengkulu Shapna Auliya Balqis; Hardiansyah; Lindung Zalbuin Mase; Khairul Amri; Rena Misliniyati
Aptek Vol. 18 No. 1 (2025): Jurnal Apliksai Teknologi (APTEK): Volume 18, No. 01, Desember 2025
Publisher : Fakultas Teknik Universitas Pasir Pengaraian

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Kota Bengkulu kerap mengalami kemacetan, terutama di sekitar Jalan Mayjen Sutoyo depan Sekolah IT Rabbani. Penelitian ini bertujuan menganalisis sensitivitas kinerja jalan akibat aktivitas sekolah. Data diperoleh melalui survei lalu lintas dan dianalisis berdasarkan kondisi eksisting dan dua skenario perubahan jam masuk sekolah. Pada kondisi eksisting, derajat kejenuhan 0,45 (tingkat pelayanan C), kecepatan 50 km/jam, dan waktu tempuh 3,31 menit. Skenario 1 (kelas 4–6 masuk pukul 07.30 WIB) menurunkan derajat kejenuhan menjadi 0,40 (indeks sensitivitas 11%), meningkatkan kecepatan menjadi 52 km/jam (4%), dan menurunkan waktu tempuh menjadi 2,58 menit (22%). Skenario 2 (kelas 1–3 masuk pukul 08.30 WIB) menurunkan derajat kejenuhan menjadi 0,42 (6%), kecepatan naik menjadi 51 km/jam (6%), dan waktu tempuh turun menjadi 3,09 menit (2%). Jalan Mayjen Sutoyo tergolong kurang sensitif terhadap perubahan volume lalu lintas
ANALISIS ANGKUTAN SEDIMEN MENGGUNAKAN METODE EMPIRIS DAN PEMODELAN NUMERIS PADA SALURAN DRANASE DI KELURAHAN SUMBER JAYA KOTA BENGKULU Rizki Akbar; Khairul Amri; Rena Misliniyati; Lindung Zalbuin Mase; Hardiansyah
Wahana Teknik Sipil: Jurnal Pengembangan Teknik Sipil Vol. 31 No. 1 (2026): Wahana Teknik Sipil
Publisher : Politeknik Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32497/wahanats.v31i1.7105

Abstract

Sedimentation in drainage channels can reduce flow capacity and cause flooding. This study aims to analyze sediment characteristics, sediment transport capacity, and its impact on drainage channels in Sumber Jaya Village, Bengkulu City. Sediment samples were taken from five points 100 meters apart, then tested in the laboratory to determine their physical properties and analyzed using empirical and numerical methods, namely Meyer-Peter Müller, Ackers - White, and DuBoys. The test results showed that the sediment was dominated by poorly graded sand with silt or clay content. The average sediment transport capacity obtained was 150.6398 tons/year using the empirical Meyer-Peter Müller method, 153.9395 tons/year using the numerical modeling of Meyer-Peter Müller, 188.409 tons/year using the DuBoys method, and 57.816 tons/year using the Ackers - White method. The average sedimentation percentage of drainage channels reached 12.38% and was classified as a sufficient channel. The results of this study confirm that sedimentation has a significant effect on drainage capacity, requiring rehabilitation measures and further study. These findings are expected to form the basis for sediment management and sustainable drainage infrastructure planning in urban areas.
Analysis of earthquake impact on market buildings in North Bengkulu using the soil response and finite element method Anugrah Juniarto, Danu; Lindung Zalbuin Mase; Khairul Amri; Rena Misliniyati; Fepy Supriani
Teknisia Vol 31 No 1 (2026): Teknisia
Publisher : Jurusan Teknik Sipil, Fakultas Teknik Sipil dan Perencanaan, Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/teknisia.vol31.iss1.art5

Abstract

The vulnerability of market buildings in active seismic zones, such as North Bengkulu which is surrounded by the Sumatran subduction zone and active faults presents a critical research challenge due to the lack of integrated soil-structure seismic assessments for commercial infrastructure. The aim of this study is to evaluate the effects of earthquakes on the Purwodadi Market Building through the integration of soil response analysis and structural dynamics. The methods employed involved calculating soil response based on historical earthquake records of the 2007 Bengkulu–Mentawai Earthquake (subduction, Mw 8.4) and the 1952 Ketahun Earthquake (active fault, Mw 6.8), followed by structural modelling using the Finite Element Method (FEM). The main quantitative results show that the local clay layer significantly amplifies ground motion, with a Peak Ground Acceleration (PGA) at the surface of 0.485 g for the subduction earthquake and 0.389 g for the fault earthquake. The amplification factors at the surface are 1.95 and 1.73, respectively. Structural simulations recorded a substantial increase in internal forces; for example, the bending moment in beam B1 increased from 0.82 kNm to 61.01 kNm, and the shear force at the head of the pile cap PC increased from 2.15 kN to 65.12 kN. Nevertheless, all structural components maintained stress ratios below 1.0, confirming that the building meets the safety standards of SNI 1726:2019. It is concluded that the integration of site-specific ground response with FEM-based structural dynamics is crucial for improving seismic resistance assessment. This study recommends the continued application of this combined method for buildings in earthquake-prone areas and the expansion of earthquake data coverage to improve future risk mitigation strategies.
ANALISIS PENGARUH VARIABILITAS SPASIAL TANAH TERHADAP RESPONS SEISMIK DI KECAMATAN RATU AGUNG, KOTA BENGKULU Surya Faadhilah; Lindung Zalbuin Mase; Hardiansyah Hardiansyah; Rena Misliniyati; Muharram Nur Fikri
Jurnal Geosaintek Vol. 12 No. 3 (2026)
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25023659.v12i3.9642

Abstract

Kecamatan Ratu Agung, Kota Bengkulu, merupakan wilayah perkotaan yang memiliki tingkat kepadatan penduduk yang tinggi serta keberadaan fasilitas strategis yang memerlukan penilaian respons seismik berdasarkan kondisi tanah setempat. Tanah di Kecamatan Ratu Agung umumnya didominasi oleh kelas situs C dan D. Oleh karena itu, diperlukan kajian mendalam untuk mengidentifikasi distribusi parameter kegempaan secara spasial. Penelitian ini bertujuan menyusun peta distribusi Peak Ground Acceleration (PGA), faktor amplifikasi (AF), serta nilai percepatan spektral (SA) pada periode 0,2 s dan 1 s di Kecamatan Ratu Agung. Penelitian ini menggunakan 112 data sekunder untuk membangun model perlapisan tanah. Pendekatan nonlinier 1D (non-linear one-dimensional site response analysis) digunakan untuk menganalisis respons tanah menggunakan rekaman gelombang gempa Bengkulu-Mentawai 2007 (Mw 8,6) sebagai input gerakan pada batuan dasar. Parameter PGA, faktor amplifikasi, dan SA yang diperoleh kemudian dipetakan menggunakan metode interpolasi kriging untuk menghasilkan peta mikrozonasi. Nilai PGA permukaan yang didapat berdasarkan hasil analisis berkisar antara 0,18-0,32g dengan faktor amplifikasi 1,2-2,1. Nilai SA periode 0,2 s berada pada rentang 0,44-0,78g, sedangkan SA periode 1 s berkisar 0,20-0,31g. Variasi nilai yang didapat mencerminkan heterogenitas karakteristik dinamik tanah yang berpengaruh terhadap perbedaan tingkat respons struktur terhadap beban gempa. Peta mikrozonasi yang dihasilkan dapat dimanfaatkan sebagai dasar pertimbangan teknis dalam perencanaan bangunan dan upaya mitigasi risiko gempa di wilayah penelitian.
Magnitude dependent liquefaction potential under deterministic earthquake scenarios in Lebong Sakti District, Bengkulu Province, Indonesia Tri Bintang Pratitis; Lindung Zalbuin Mase; Khairul Amri; Rena Misliniyati; Muharram Nur Fikri; Diefi Deayuzeta
Gravity : Jurnal Ilmiah Penelitian dan Pembelajaran Fisika Vol 12, No 2 (2026)
Publisher : Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62870/gravity.v12i2.41024

Abstract

Lebong Sakti District, located in Lebong Regency, Bengkulu Province, lies within an active tectonic setting influenced by the Sumatran Fault system and is characterized by fluvial deposits associated with the Ketahun River flowing into Lake Tes. These conditions contribute to the presence seismic events. This study evaluates liquefaction potential in Lebong Sakti District, Lebong Regency, Bengkulu using deterministic earthquake scenarios. The analysis is based on the 2017 earthquake (Mw 5.0) and additional scenarios of Mw 6.0, Mw 7.0, Mw 8.0, and Mw 9.0 to examine the sensitivity of liquefaction potential to increasing seismic energy. Liquefaction potential was evaluated using the simplified procedure through the calculation of Cyclic Stress Ratio (CSR), Cyclic Resistance Ratio (CRR), and Factor of Safety (FS), while the overall hazard level was assessed using the Liquefaction Potential Index (LPI). The results show that increasing earthquake magnitude significantly increases Peak Ground Acceleration (PGA) and CSR while reducing FS. The average LPI rises from 0.00 at Mw 5.0 to 15.67 at Mw 9.0, indicating higher liquefaction hazard levels. These findings highlight the importance of deterministic earthquake scenarios for geotechnical hazard assessment and disaster mitigation in seismic regions.
Co-Authors Ahmad, Debby Ariansyah Annisa Zahara Anugrah Juniarto, Danu Diefi Deayuzeta FEPY SUPRIANI Hardiansyah Hardiansyah Hardiansyah Khairul Amri Lindung Zalbuin Mase Lindung Zalbuin Mase, Lindung Zalbuin Maha Deta Winusi Mely Anisa Muharram Nur Fikri Rizki Akbar Sartika Meitry Shapna Auliya Balqis Surya Faadhilah Tri Bintang Pratitis