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Program Studi Teknik Sipil, Fakultas Teknik Universitas Bengkulu Jl. W.R. Supratman, Kandang Limun, Bengkulu
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INDONESIA
Inersia : Jurnal Teknik Sipil
Published by Universitas Bengkulu
ISSN : 20869045     EISSN : 26865017     DOI : https://doi.org/10.33369/ijts
Core Subject : Engineering,
Civil Engineering, Building, Construction & Architecture
Each volume contains two editions. The first edtion is published in April and the second one in October. This journal accomodates the research result in the area of civil engineering, i.e. Construction Management, Geotechnical Engineering, Structural Engineering, Transportation Engineering and Water Resources Engineering.
Arjuna Subject : Teknik (semua kategori) - Teknik Sipil dan Struktur
Articles 222 Documents
 19   20   21   22   23 
Penanganan Longsoran Jalan Simpang Nangka - Batas Provinsi Sumatera Selatan Riskiawan, Fahrino
Inersia: Jurnal Teknik Sipil Vol. 17 No. 2 (2025)
Publisher : Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/ijts.17.2.81-95

Abstract

Proyek Penanganan Longsoran Jalan Simpang Nangka - Batas Provinsi Sumatera Selatan merupakan inisiatif strategis untuk meningkatkan keselamatan dan konektivitas antarprovinsi melalui perbaikan infrastruktur jalan. Proyek ini dilaksanakan oleh CV. INDO KARYA AGUNG pada tahun 2024, mencakup delapan titik longsoran di ruas jalan nasional wilayah Bengkulu-Sumsel. Pelaksanaan proyek melibatkan Balai Pelaksanaan Jalan Nasional (BPJN) dan konsultan pengawas untuk memastikan mutu, waktu, dan biaya sesuai dengan standar teknis. Metode penanganan longsoran dilakukan melalui beberapa tahapan, yaitu pekerjaan pendahuluan, pekerjaan tanah, pekerjaan pondasi, pekerjaan pile cap, pembangunan dinding penahan tanah (retaining wall concrete), pekerjaan timbunan, pengecoran beton penutup timbunan, pembangunan bangunan pelengkap, dan pekerjaan finishing. Hasil proyek ini tidak hanya memperbaiki infrastruktur jalan tetapi juga memberikan manfaat sosial dan ekonomi, seperti menciptakan lapangan kerja, mengurangi risiko kecelakaan, dan memperkuat hubungan perekonomian antarwilayah. Dengan menekankan efisiensi, profesionalisme, dan keberlanjutan, proyek ini diharapkan menjadi model untuk pelaksanaan proyek-proyek infrastruktur lainnya.
Stabilisasi Tanah Lempung dengan Limbah Beton Terhadap Nilai Kuat Geser Maijuanda, Shinta; Zainuri; Soehardi, Fitridawati
Inersia: Jurnal Teknik Sipil Vol. 17 No. 2 (2025)
Publisher : Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/ijts.17.2.52-58

Abstract

Stabilitas tanah merupakan salah satu faktor krusial dalam rekayasa geoteknik, karena berhubungan langsung dengan keamanan dan daya dukung struktur yang dibangun di atasnya. Penggunaan limbah beton sebagai bahan tambahan dalam perbaikan sifat tanah dapat menjadi solusi yang efektif. Tujuan dari penelitian ini adalah Menganalisis nilai kuat geser pada stabilisasi tanah lempung menggunakan limbah beton serta mengetahui berapa besarnya kadar limbah beton optimum pada campuran material dari variasi 5%, 10%, 15%, dan 20% terhadap parameter kuat geser. Metode penelitian menggunakan standar SNI 3420:2016 untuk eksperimental di laboratorium berdasarkan. Hasil penelitian menunjukan bahwa terjadi peningkatan nilai sudut geser dan kohesi pada seluruh variasi 5%, 10%, 15%, dan 20% serbuk limbah beton disbanding dengan sudut geser dan kohesi pada tanah asli. Nilai tertinggi sudut geser dan kohesi tertinggi terjadi pada variasi 20% serbuk limbah beton dengan menghasilkan nilai kohesi sebesar 0,6114 kg/cm² sedangkan tanah asli sebesar 0,4319 kg/cm² dan nilai sudut geser maksimum variasi 20% serbuk limbah beton sebesar 41,12° sedangkan nilai sudut geser tanah asli sebesar 22,54°. Kesimpulan penelitian adalah variasi serbuk limbah beton dapat dipergunakan untuk menstabilisasi tanah lempung karena mampu meningkatkan nilai kohesi dan sudut geser.
Perbandingan Kinerja Struktur Rangka Baja Menggunakan Pengaku Eksentris dengan Pengaku Konsentris Simorangkir, Ester; Hadibroto, Bambang
Inersia: Jurnal Teknik Sipil Vol. 17 No. 2 (2025)
Publisher : Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/ijts.17.2.59-65

Abstract

sehingga diperlukan perencanaan struktur bangunan yang mampu merespons beban seismik secara efektif. Penelitian ini bertujuan untuk membandingkan kinerja struktur rangka baja 10 lantai dengan sistem bresing eksentris dan konsentris dalam menghadapi beban gempa. Struktur dimodelkan menggunakan profil baja Wide Flange (WF) dengan konfigurasi bresing diagonal dan inverted V. Analisis dilakukan menggunakan perangkat lunak ETABS v20 dengan metode respons spektrum berdasarkan ketentuan SNI 1726:2019. Parameter kinerja yang dianalisis meliputi perpindahan lateral (displacement), simpangan antar lantai (story drift), gaya geser dasar (base shear), serta level kinerja struktur berdasarkan pendekatan ATC-40. Hasil analisis menunjukkan bahwa sistem bresing eksentris memberikan performa yang lebih baik dalam disipasi energi dan deformasi terkontrol, dengan story drift yang lebih kecil pada lantai atas dan level kinerja yang lebih stabil. Sementara itu, bresing konsentris memberikan kekakuan lateral yang lebih tinggi namun menunjukkan potensi konsentrasi tegangan yang lebih besar. Oleh karena itu, pemilihan jenis bresing perlu disesuaikan dengan kebutuhan kinerja seismik dan strategi desain bangunan.
Analisis Komparatif Zona Agregat Halus Terhadap Kuat Tekan, Kuat Tarik Belah, dan Kuat Lentur Beton Ni Wayan Pani Nadia Sari; Ni Komang Ayu Agustini; Aryastana, Putu
Inersia: Jurnal Teknik Sipil Vol. 17 No. 2 (2025)
Publisher : Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/ijts.17.2.44-51

Abstract

The performance and durability of concrete depend significantly on the quality of its components, particularly fine aggregates such as sand. These aggregates are categorized into four distinct gradation zones according to their particle size distribution. This study aims to analyze how different fine aggregate gradation zones affect the mechanical properties of standard concrete designed for a target compressive strength of 25 MPa. The experimental approach involved assessing material characteristics, designing concrete mixtures following SNI 03-2834-2000 guidelines, and conducting compressive, split tensile, and flexural strength tests after 7 days of curing. Results indicated that zone 2 fine aggregates yielded the maximum compressive strength (29.03 MPa) and split tensile strength (1.49 MPa), whereas zone 3 aggregates produced the highest flexural strength (2.71 MPa). These findings highlight the importance of selecting the optimal fine aggregate gradation zone to enhance concrete performance.
Pengaruh Variasi Kaolin Sebagai Pengganti Sebagian Semen Terhadap Kuat Tekan Mortar Harahap, Abeng Andhika Pratama; wahyuni, Ade Sri; Gunawan, Agustin; Afrizal, Yuzuar; Islam, Mukhlis
Inersia: Jurnal Teknik Sipil Vol. 17 No. 2 (2025)
Publisher : Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/ijts.17.2.66-70

Abstract

This study aims to determine the effect of using kaolin on the compressive strength of mortar compared to normal mortar, as well as to identify the optimum percentage of kaolin that yields the highest compressive strength. The research uses an experimental method with references from journals. The test specimens are made using cube molds with dimensions of 5 cm × 5 cm × 5 cm, totaling 100 specimens. Compressive strength tests will be conducted at the ages of 7, 14, 21, and 28 days.The cement replacement variations using kaolin are 10%, 20%, 30%, 40%, and 50%. The highest compressive strength value occurred at the 10% kaolin variation on day 28, with an average strength of 23.8 MPa. Compared to normal mortar, which has a strength of 23.6 MPa, the increase in compressive strength with 10% kaolin is minimal. Meanwhile, mortar with more than 20% kaolin shows a decrease in compressive strength compared to normal mortar.
Komparasi Perilaku Struktur Jembatan dengan Elastomeric Bearing dan Lead Rubber Bearing Terhadap Gaya Gempa Azharis, Rahmat; Maizuar; Sarana, David
Inersia: Jurnal Teknik Sipil Vol. 17 No. 2 (2025)
Publisher : Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/ijts.17.2.71-80

Abstract

Indonesia memiliki tingkat kegempaan cukup tinggi, sehingga infrastruktur seperti jembatan yang memiliki kesederhanaan bentuk sangat rentan terhadap kerusakan struktural, untuk itu diperlukan sistem isolasi seismik yang mampu mereduksi respon dinamis akibat beban gempa. Penelitian ini bertujuan untuk membandingkan perilaku struktur jembatan eksisting dengan sistem Elastomeric Bearing (EB) support dan Sistem Isolasi Seismik yaitu, Lead Rubber Bearing (LRB) terhadap pengaruh gaya gempa. Metode penelitian dengan pemodelan numerik menggunakan software SAP2000, mengacu pada SNI 1725-2016, SNI 2833-2016 dan Buku Peta Deagregasi Bahaya Gempa Indonesia untuk Perencanaan dan Evaluasi Infrastruktur Tahan Gempa. Analisis yang digunakan adalah time history dengan input tiga data gempa representatif (Quirihue, Hyuganda, Ki_se). Parameter utama yang dianalisis meliputi displacement (perpindahan), defleksi (lendutan), periode alami dan frekuensi. Hasil analisis menunjukkan bahwa sistem LRB mampu menurunkan perpindahan strutkur secara signifikan, yaitu 30-154%, dibandingkan EB pada semua gempa. Defleksi maksimum menunjukkan perbedaan relatif kecil hanya sekitar 1,3%, namun nilai lendutan LRB lebih kecil. Periode alami jembatan dengan LRB meningkat hingga 121,9%, yang membuat struktur lebih fleksibel, menurunkan frekuensi getar serta mengurangi gaya gempa yang bekerja pada struktur.
The Compressive Strength of Geopolymer Mortar with the Alkali Silica Ratio of 2.5 Revanska Harbyansyah; Ade Sri Wahyuni; Agustin Gunawan; Mukhlis Islam; Yuzuar Afrizal
Inersia: Jurnal Teknik Sipil Vol. 18 No. 1 (2026)
Publisher : Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/ijts.18.1.36-41

Abstract

The cement industry accounts for approximately 7% of global CO₂ emissions, driving the development of environmentally friendly alternatives such as geopolymer concrete. Geopolymers are formed from silica (SiO₂) and alumina (Al₂O₃) rich materials that are reacted with an alkaline solution. This study utilized fly ash from Teluk Sepang Power Plant in Bengkulu to prepare geopolymer mortar. Seventy-two 5×5×5 cm cubic samples were prepared with 2,5 ratio of sodium silicate to sodium hydroxide (SS/SH) and 8M NaOH. The curing process was carried out at ±80°C for 24 hours. The results showed that calcination of fly ash significantly increased the initial compressive strength. On day 7, the compressive strength reached 92.9% of the 28-day age, with a final value of 38.1 MPa. Mortar with calcined fly ash showed a compressive strength 97.7% higher on day 7 compared to normal fly ash, and 11.5% higher on day 28. Additionally, the setting time of the mortar was reduced by 46.8% with calcination. The pattern of compressive strength development from calcined fly ash tended to be stable from the beginning, unlike normal fly ash.   Keywords: Geopolymer Mortar, Calcination, Fly Ash, Compressive Strength
An Analysis of Walking Permeability, Walking Effort, and the Walkability Index: A Case Study of the Dayang Sumbi Entrance, Institut Teknologi Bandung (ITB) Ammar Asyraf; Edlin Al Khuzaifah Hasbi; Irwandra Septiadi
Inersia: Jurnal Teknik Sipil Vol. 18 No. 1 (2026)
Publisher : Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/ijts.18.1.1-13

Abstract

Human mobility in Bandung City cannot be avoided. Congestion and travel distance make walking a popular choice. Accessibility is measured by walking distance (400–800 m) and walking time (10–15 minutes). Route characteristics affect walking effort, determining accessibility quality. Ganesha Campus ITB, especially Dayang Sumbi Gate, has high pedestrian traffic. This study assesses walkability using Permeability Framework, Walking effort approach, and Walkability Index. Results shows the route to McDonald's Dago via Jl. Sumur Bandung has the highest Walking Effort and Permeability: 3155 m (normal)–2300.26 m (opposite) and 5.836 (normal)–4.939 (opposite). The best road by walkability index is Jl. Ir. H. Djuanda While the Worsts one is Jl. ITB IX.
Evaluation of Bore Pile Integrity Based on UDM (Ultrasonic Drilling Monitor) and PIT (Pile Integrity Test) on the Cibogo Main Bridge of the Bocimi Toll Road Project Septiani Nur Fadillah; Sudjani
Inersia: Jurnal Teknik Sipil Vol. 18 No. 1 (2026)
Publisher : Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/ijts.18.1.29-35

Abstract

This study aims to determine the condition of the bore pile hole based on the test results and to determine the integrity of the bore pile based on the results of the PIT test on the Cibogo Main Bridge, Bocimi Toll Project. The data collection techniques used in this study by the author are observation, interview, document review, and literature review. The results of the study are at points P05-B06 and P05-B30 which have been tested with UDM and PIT tests, it can be evaluated that the UDM of both points meets the maximum limit requirements of 2%, namely 0.23% (X-X') and 0.23% (Y-Y') and 0.64% (X-X') and 0.52% (Y-Y'). Then the PIT test can produce an evaluation that meets the requirements of ASTM D5882-07, namely the integrity of the pile is classified as Class I, which means Good Pile, and Class II, which means Slightly Damaged. Keywords: Bore Pile, UDM, PIT
The Effect of Polyethylene Terephthalate as an Additive on the Marshall Parameters of Asphalt Concrete Wearing Course (AC-WC) Mixtures at Ambient Temperature Rhiza Afriady; Said Jalalul Akbar; Maizuar
Inersia: Jurnal Teknik Sipil Vol. 18 No. 1 (2026)
Publisher : Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/ijts.18.1.42-47

Abstract

Indonesia’s tropical climate, characterized by high temperatures and fluctuating humidity, presents a major challenge to the service life of pavements, as it accelerates asphalt aging and reduces the performance of the Asphalt Concrete–Wearing Course (AC-WC), the primary protective layer against traffic loads. This study investigates the effectiveness of Polyethylene Terephthalate (PET) waste as a modifying additive to enhance the resistance of AC-WC under ambient temperature conditions. Test specimens were prepared with 3% PET by asphalt weight and evaluated in accordance with Indonesian National Standards (SNI) and the 2018 Bina Marga General Specifications. The samples were exposed to temperatures of 23.77°C–31.11°C and an average humidity of 88.79% for periods of 0, 15, 30, 45, 60, 75, and 90 days, followed by stability, flow, and Marshall Quotient (MQ) testing. The results showed a stability increase of 13.74% at day 30, followed by a 16.81% decrease at day 90. Flow increased by an average of 19.70%, while MQ decreased by 15.75%. The mixture met the specification requirements for stability and MQ, but flow exceeded the limit after day 45. These findings confirm that PET can improve the early performance of AC-WC in tropical climates, although further optimization is required to control long-term plastic deformation.  Keywords: Polyethylene terephthalate, AC-WC, Marshall parameters, ambient temperature, tropical climate.

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