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All Journal Quimica : Jurnal Kimia Sains dan Terapan Jurnal Sains dan Teknologi Journal of Planning and Research in Civil Engineering Jurnal Masyarakat Berdikari dan Berkarya (MARDIKA) Journal of The Civil Engineering Student
Alfisyahrin, Alfisyahrin
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Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Dentistry Education Electrical & Electronics Engineering Energy Engineering Health Professions Industrial & Manufacturing Engineering Mathematics Mechanical Engineering Medicine & Pharmacology Nursing Public Health Social Sciences Transportation Veterinary

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Analisis Perilaku Geser Balok Beton Bertulang dengan Metode Elemen Hingga Non-Linear Alfisyahrin Alfisyahrin; Mochammad Afifuddin; Rudiansyah Putra
Journal of The Civil Engineering Student Vol 1, No 3 (2019): Volume 1, Nomor 3, Desember 2019
Publisher : Jurusan Teknik Sipil, Fakultas Teknik, Universitas Syiah Kuala

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

Abstract

Analisis geser suatu elemen struktural perlu mendapat perhatian khusus dikarenakan keruntuhan akibat geser terjadi secara tiba-tiba tanpa peringatan terlebih dahulu berbeda halnya dengan keruntuhan akibat lentur yang ditandai terlebih dahulu oleh lelehnya tulangan tarik (kondisi under reinforced). Penelitian ini dilakukan dengan tujuan untuk mengetahui perilaku geser balok beton bertulang dengan menggunakan software ATENA V5 yang berbasis elemen hingga dan hasilnya dibandingkan dengan penelitian eksperimental. Hasil analisis numerik ATENA V5 menunjukkan nilai yang mendekati dengan hasil eksperimental. Beban ultimit pada balok BMT Normal HSC menunjukkan perbedaan sebesar 3,16% dan lendutan ultimit sebesar 11,34% sedangkan pada balok BK-25, beban ultimit menunjukkan perbedaan sebesar 15,88% dan lendutan ultimit sebesar 19,87%. Untuk balok BN diperoleh kapasitas geser sebesar 226 kN dengan lendutan sebesar 7,281 mm. Adapun pola kehancuran balok pada model numerik menyerupai pola kehancuran model eksperimental. Hasil analisis numerik ATENA V5 menunjukkan bahwa semua balok yang dimodelkan gagal terhadap geser sesuai dengan yang direncanakan.
KEGIATAN PKM PENERAPAN NILAI INTEGRITAS MENUJU WBK DI PROGRAM STUDI AGRIBISNIS UNIVERSITAS SAMUDRA Safrizal; Iswahyudi; Kasaf, Michel; Mahdi, Saiful; Hadisugelar, Danar; Alfisyahrin; Arief Diana, Muhammad
Jurnal Masyarakat Berdikari dan Berkarya (Mardika) Vol 3 No 1 (2025): Jurnal Masyarakat Berdikari dan Berkarya (MARDIKA)
Publisher : Fakultas Teknik, Universitas Samudra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55377/mardika.v3i1.11653

Abstract

This community service activity aims to implement the Integrity Zone (ZI) initiative towards establishing a Corruption-Free Zone (WBK) within the Agribusiness Study Program of the Faculty of Agriculture at Samudra University. The primary issue addressed is the absence of ZI implementation, which poses a risk to transparency, accountability, and the quality of governance within the program. The methods employed include preliminary discussions, focus group discussions (FGDs), the provision of complaint boxes and online reporting platforms, seminars/workshops, the installation of informational banners (x-banners), and activity evaluations. The outcomes of the activity indicate a 26% increase in participants’ understanding of integrity values, the establishment of a complaint mechanism, and the formulation of a draft joint commitment to ZI. This initiative has had a positive impact on fostering a culture of integrity and enhancing the quality of public service. The success of the program demonstrates that collaborative and educational approaches are effective in promoting governance reform within higher education institutions.
SOSIALISASI DAN PENANAMAN MANGROVE SEBAGAI UPAYA PERBAIKAN LINGKUNGAN DAN PENCEGAHAN ABRASI DI DESA PEUNAGA CUT UJONG Yusuf, Alfisyahrin; Masrura, Delfian; Hasdanita, Fitry; Kasaf, Michel; Arief Diana, Muhammad; Rizqi Maysyarah Hadi, Tjut; Lisdayanti, Eka; Rahmawati; Yunisa Fahmi, Nadya; Najmi, Nurul
Jurnal Masyarakat Berdikari dan Berkarya (Mardika) Vol 3 No 2 (2025): Jurnal Masyarakat Berdikari dan Berkarya (MARDIKA)
Publisher : Fakultas Teknik, Universitas Samudra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55377/mardika.v3i2.11678

Abstract

This community service initiative aims to enhance awareness and encourage active participation among the residents of Peunaga Cut Ujong Village, Meureubo Subdistrict, West Aceh Regency, in environmental conservation efforts through mangrove planting. Located in a coastal area vulnerable to erosion and exposed to air pollution due to coal-burning activities, this village faces significant environmental challenges. Employing an educational and participatory approach, the program involved raising awareness about the ecological functions of mangroves and conducting direct planting activities in a mangrove forest area approximately 100 meters from the shoreline. The outcomes of the initiative indicated a positive response from the community, demonstrated by increased environmental awareness and active involvement in conservation efforts. Mangrove planting is expected to function as a coastal protection barrier, an air pollutant absorber, and a potential site for ecotourism and aquaculture development. This initiative highlights the importance of synergy between academia, the local community, and the industrial sector in creating sustainable environmental solutions. Continuous evaluation and the replication of similar programs are strongly recommended to enhance their long-term impact.
Karakteristik dan Perilaku Perjalanan Masyarakat pada Aktivitas Mandatory dan Non Mandatory di Kota Banda Aceh Berdasarkan Revealed Preference Data Tjut Rizqi Maysyarah Hadi; Febrina Dian Kurniasari; Michel Kasaf; Alfisyahrin
Jurnal Perencanaan dan Penelitian Teknik Sipil Vol 4 No 2 (2025): Juli
Publisher : Universitas Iskandar Muda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55616/prince.v4i2.971

Abstract

The city of Banda Aceh is experiencing rapid growth, especially in the transportation sector, as the population and daily mobility of people increase. This condition causes various traffic problems such as congestion, pollution, and safety. The Aceh Provincial Government through the Transportation Agency responded to this by providing the Trans Koetaradja Bus as an alternative to public transportation. This bus carries the concept of BRT-lite without a special lane, with the hope of reducing dependence on private vehicles. Although it is generally accepted, the use of Trans Koetaradja is still low due to limited route access and the absence of feeder transportation. This study aims to analyze the characteristics and travel behavior of Trans Koetaradja users and private vehicles in mandatory and non mandatory activities in Banda Aceh. The research was conducted in a quantitative descriptive manner using the revealed preference method with 400 respondents. The results showed that the majority of respondents were women aged 20–29 years old with a bachelor's education background and status as a student. The most dominant mode of transportation is motorcycles, used almost every day by respondents. The use of Trans Koetaradja is still low, with the majority of respondents only using it less than once a month. The average travel time to the bus stop is 2–4 minutes, and the dominant destination for mandatory activities is work, while for non mandatory activities is recreation. This underscores that the limited use of Trans Koetaradja is mainly due to access constraints, despite the presence of a well-defined potential user segment.
Analisis Desain Gedung Imigrasi Kelas I Banda Aceh dari Struktur Baja ke Struktur Beton Bertulang Alfisyahrin, Alfisyahrin; Muhammad Riswandy; Michel Kasaf; Tjut Rizqi Maysyarah Hadi; Mhd. Arief Diana
INSOLOGI: Jurnal Sains dan Teknologi Vol. 4 No. 4 (2025): Agustus 2025
Publisher : Yayasan Literasi Sains Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55123/insologi.v4i3.5370

Abstract

This study provides an understanding of the advantages of reinforced concrete in the construction of multi-story buildings in Banda Aceh. The objective of this research is to improve the efficiency of constructing the Class I Immigration Office Building in Banda Aceh by replacing the main structural system from steel to reinforced concrete. This change was carried out in accordance with the SNI 2847:2019 standard, utilizing the ETABS application for the design and analysis process.The results show that the total building weight in the existing condition (steel structure) is 1,594,043.95 kg, while using reinforced concrete increases the weight to 2,631,222.38 kg. At portal 5-5, the differences in bending moment and shear force between the steel and reinforced concrete structures are significant, with values of -2.9559 kNm and -80.0447 kNm for bending moment, and 3.5657 kN and 29.1996 kN for shear force, respectively. Additionally, the maximum lateral displacement in both X and Y directions is lower in the reinforced concrete structure compared to the steel structure. The axial force at portal 5-5 also shows an increase from -492.0887 kN (steel structure) to -949.2849 kN (reinforced concrete structure). These findings indicate that the use of reinforced concrete provides better stability, capacity, and overall structural performance compared to the steel structure
Analisis Perubahan Struktur Mineral Tanah Akibat Reaksi Kimia antara Lempung dan Kapur pada Kondisi Kelembapan Tinggi Sabilla, Arissa; Rikza, Rikza; Alfisyahrin, Alfisyahrin; Masthura, Masthura; Rizky, Sari; Damayanti, Rizki
JURNAL QUIMICA Vol 7 No 2 (2025)
Publisher : Program Studi Kimia, Fakultas Sains dan Teknologi, Universitas Samudra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33059/jq.v7i2.13354

Abstract

Penelitian ini bertujuan untuk menganalisis perubahan struktur mineral tanah akibat reaksi kimia antara lempung dan kapur pada kondisi kelembapan tinggi dengan memanfaatkan data sekunder hasil uji laboratorium terdahulu. Analisis difokuskan pada hubungan antara variasi kadar kapur terhadap perubahan sifat mekanik dan mekanisme kimia yang mendasarinya. Bahan penelitian berupa tanah lempung berplastisitas tinggi (CH) yang distabilisasi menggunakan kapur padam (Ca(OH)₂) pada kadar 0%, 2%, 4%, 6%, 8%, 10%, dan 12% dari berat kering tanah. Hasil pengujian menunjukkan bahwa penambahan kapur hingga kadar optimum 6% meningkatkan nilai sudut geser dalam (ϕ) dari 20,545° menjadi 39,330°, serta kohesi (c) dari 1,505 t/m² menjadi 2,080 t/m². Peningkatan kekuatan ini disebabkan oleh terbentuknya senyawa Calcium Silicate Hydrate (CSH) dan Calcium Aluminate Hydrate (CAH) hasil reaksi pozzolanisasi antara ion Ca²⁺ dari kapur dan mineral silikat–aluminat dari tanah lempung. Kelembapan tinggi mempercepat proses difusi ion dan pembentukan senyawa pengikat tersebut, sehingga struktur tanah menjadi lebih rapat dan kaku. Namun, pada kadar kapur di atas 10%, reaksi kimia tidak berjalan efektif karena terbentuk lapisan jenuh Ca(OH)₂ yang menghambat difusi ion. Secara geoteknis, kondisi optimum tercapai pada kombinasi kadar kapur 6–8% dengan kelembapan tinggi yang terkontrol, yang mampu meningkatkan kekuatan geser dan menurunkan plastisitas tanah secara signifikan.
Co-Authors Arief Diana, Muhammad Danar Hadisugelar Eka Lisdayanti Febrina Dian Kurniasari Fitry Hasdanita Iswahyudi MASRURA, DELFIAN Masthura, Masthura Mhd. Arief Diana Michel Kasaf Mochammad Afifuddin Muhammad Riswandy Nurul Najmi Rahmawati Rikza, Rikza Rizki Damayanti, Rizki Rizky, Sari Rudiansyah Putra Sabilla, Arissa Safrizal Saiful Mahdi Tjut Rizqi Maysyarah Hadi Yunisa Fahmi, Nadya