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All Journal Jurnal Rekayasa Sipil dan Desain Jurnal Informatika dan Teknik Elektro Terapan Jurnal Biologi Tropis Jurnal Pengabdian Fakultas Pertanian Universitas Lampung Rekayasa : Jurnal Ilmiah Fakultas Teknik Universitas Lampung
Siregar, Amril Ma'ruf
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Civil Engineering, Building, Construction & Architecture Computer Science & IT Immunology & microbiology

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THERMAL IDENTIFICATION BASED ON BUILDING ENVELOPE, SHAPE & ORIENTATION USING SEFAIRA SIMULATION METHOD. (CASE STUDY OF BUILDING B, ARCHITECTURE DEPARTMENT, UNIVERSITY OF LAMPUNG) Ifadianto, Nugroho; Kurniawan, Panji; Nugroho, Agung Cahyo; Siregar, Amril Ma'ruf
Jurnal Informatika dan Teknik Elektro Terapan Vol 12, No 3S1 (2024)
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jitet.v12i3S1.5374

Abstract

The building envelope, which serves as the boundary layer between the interior and exterior, plays a crucial role in regulating heat exchange. The shape of the building also impacts heat distribution and airflow within and around the structure. The orientation of the building, particularly in relation to the sun, determines how much solar radiation it receives, directly affecting the building's thermal load.Using Sefaira, a building performance simulation software, researchers can visualize and optimize these thermal aspects. This simulation allows them to experiment with various scenarios related to the building envelope, shape, and orientation to achieve ideal thermal conditions, which are not only comfortable for occupants but also energy-efficient.The findings of this research are expected to provide new insights into sustainable architectural design, especially in tropical regions like Lampung. By understanding and applying the correct thermal principles, buildings can be designed to minimize energy usage for cooling or heating, supporting efforts to reduce the impacts of climate change
PENGEMBANGAN KEWIRAUSAHAAN PRODUK “KEMPLANG PANGGANG: SAI IWA” DI DESA KUNJIR LAMPUNG SELATAN Yuliandari, Puspita; Siregar, Amril Ma'ruf; Indraningtyas, Lathifa; Anungputri, Pramita Sari
Jurnal Pengabdian Fakultas Pertanian Universitas Lampung Vol. 2 No. 2 (2023): Jurnal Pengabdian Fakultas Pertanian Universitas Lampung Vol 2 No 2, September
Publisher : Agriculture Faculty, Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jpfp.v2i2.7935

Abstract

Pengabdian Kepada Masyarakat Diseminasi Hasil Riset Tahun 2023 bekerja samadengan KUB Minan Nelayan Desa Kunjir Lampung Selatan  berupaya melakukan produksi kemplang panggang. Permasalahan mitra dalam kegiatan produksi adalah penggunaan alat yang masing manual sehingga mempengaruhi mutu kemplang panggang serta kegiatan produksi yang masih tidah memperhatikan sanitasi dan higienitas.Tujuan dari program diseminasi hasil riset adalah:(1) Meningkatkan pengetahuan dan keterampilan KUB Minan Nelayan dalam melakukan pengembangan kewirausahaan kemplang panggang.; (2) Meningkatkan pengetahuan dan keterampilan KUB Minan Nelayan dalam melakukan pengembangan kewirausahaan melalui kegiatan sanitasi produksi pada produk kemplang panggang. Pelaksanaan pengabdian dilakukan bersama dengan KUB Minan Nelayan sebanyak 15 orang dengan tahapan persiapan, pelaksanaan, dan evaluasi kegiatan. Pelaksanaan kegiatan terdiri dari sosialisasi, pendampingan, dan praktik langsung/demonstrasi. Evaluasi dilakukan dengan membandingkan nilai pre test dan post test. Hasil yang diperoleh yaitu peningkatan pemahaman dan keterampilan KUB Minan Nelayan dalam melakukan produksi kemplang panggang menggunakan mesin semi otomatis MJ-1805 Matrix Stainless dan penerapan sanitasi hygiene dalam kegiatan produksi. Kegiatan ini diharapkan akan meningkatkan pendapatan KUB Minan Nelayan dan meningkatkan kualitas kemplang panggang yang dihasilkan.
Carbon Sequestration Assesment of Mangrove Ecosystem in Karang Anyar Village, Tanggamus Regency Kusuma, Anma Hari; Caesario, Racmad; Lahay, Almira Fardhani; Hasani, Qadar; Jati, Ciptaning Weargo; Sarida, Munti; Siregar, Amril Ma'ruf
Jurnal Biologi Tropis Vol. 24 No. 3 (2024): July - September
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v24i3.7491

Abstract

Mangroves is a ecosystem can absorb carbon more efective than teresterial vegetataion. The goal of this research is to analyze effectively carbon absorption in the mangrove aea in the Karang Anyar Village. The research was conducted in Karang Anyar Village. Survey and tree sampling were carried out from Juni to August 2024.  Biomass measurements provided information on carbon sequestrtaion. Data obtained was analyzed using allometric equation. Results showed that mean carbon sequestration of the mangrove biomass in Karang Anyar Village was 40,45-69,24 kg C/m2. Carbon sink in mangrove sediment was 402,15-907,95 kg C/m2. This research showed that mangrove ecosystem in Karang Anyar Village held sufficiently high carbon stock. Nevertheless, the future study needs to be directed to carbon stock comparison with other locations in Lampung.
Body Cliff Safety Study Of Double Track Railway With Geostudio Slope/W Analysis Warikar, Yance Y D; Arifaini, Nur; Siregar, Amril Ma'ruf
Jurnal Rekayasa Sipil dan Desain (JRSDD) Vol. 8 No. 1 (2020): Edisi Maret 2020
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v8i1.1269

Abstract

Double track railway construction area railroad crossing many hills and rivers makes the railroad body located between the slopes of the hill. Around the area, disasters that often occur are landslides caused by increased pore water pressure on the slope resulting a decrease in the shear strength of the soil (c) and the deep shear angle (φ). Therefore in planning the handling of cliffs of railroad tracks it is necessary to analyze the stability of slopes or cliffs so as not to endanger the surrounding environment, especially in railroad transportation. The purpose of the research are: (1) To know the cross section of the safest slope by considering the slope angle, (2) To Find the value of the safe factor for shear and rolling on the slope by using software analysis, (3) To know type of slope safety in accordance with slope conditions. The location of this research was conducted in the Martapura-Giham area which is the location of the construction of double track railroad, Waykanan Regency, Lampung. The method used in the analysis of slope stability is Geostudio Slope/W Analysis by making 3 cross-section slope designs which are then analyzed further. The results of the analysis found that the slope conditions before handling obtained the number of safe factors with ordinary, bishop, and morgenstern methods, respectively 0.730; 0.911; and 0.950. While after handling with sheetpile construction, it was obtained the number of safe factors with ordinary, bishop, and morgenstern methods in a row that is 2,945; 3,633; and No Solution. It can be concluded that the slope condition after handling shows increase in the value of the safe factor by 500%. Keywords: Geostudio Slope/W Analysis, Double track railroad, Cliffs and slope stability.
Kajian Pola Operasi dan Desain Penataan Emplasemen Stasiun pada Jalur Longcut Tegineneng - Tarahan Patakom, Kasri; Purba, Aleksander; Siregar, Amril Ma'ruf
Jurnal Rekayasa Sipil dan Desain (JRSDD) Vol. 8 No. 1 (2020): Edisi Maret 2020
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v8i1.1273

Abstract

Saat ini kondisi lalu lintas perkeretaapian di Provinsi Lampung, banyaknya perlintasan sebidang yang dilewati jalur kereta, menimbulkan kemacetan khususnya di kota Bandarlampung. Penelitian ini bertujuan untuk mengkaji pola operasi untuk kereta api Babaranjang termasuk penataan emplasemen baru di jalur longcut dari Tegineneng–KM3 Panjang. Lokasi penelitian dilakukan di daerah Tegineneng-Tarahan, dimana akan dibuat longcut yang bersampingan dengan pembangunan jalan Tol Sumatera. Hasil penelitian menunjukkan bahwa target produksi tahunan pada tahun 2020 dengan rencana angkutan menuju Tarahan, PT. Bukit Asam, SRENGSEM dan PT. PULP masing-masing sebesar 25 juta ton, 22 juta ton dan 1 juta ton. Menghasilkan jumlah rangkaian kereta api 25 dan 22 rangkaian kereta api isi, dalam satu kali keberangkatan yang terdiri dari 60 gerbong bermuat 50 ton per gerbongnya dan 3 rangkaian kereta api isi, dalam satu kali keberangkatan yang terdiri dari 40 gerbong bermuat 30 ton per gerbongnya. Jumlah frekuensi kereta api dari Tarahan–Tanjungenim Baru pulang pergi yang telah ditentukan sebesar 124 kereta per hari, masih memenuhi kapasitas lintas yang tersedia 126 kereta per hari. Untuk emplasemen stasiun Tegineneng menambah jalur dari 2 menjadi 6, stasiun Sukamenanti menambah arah jalur dari stasiun Tanjungkarang menjadi stasiun Tanjungkarang dan Karangsari kemudian menambah satu stasiun Karangsari diantara stasiun Tegineneng dan KM3 Panjang
Analisis Percepatan Durasi Proyek Dengan Menggunakan Metode Crashing Pramana, I Dewa Made Agung; Siregar, Amril Ma'ruf; Herianto, Dwi
Jurnal Rekayasa Sipil dan Desain (JRSDD) Vol. 8 No. 2 (2020): Edisi Juni 2020
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v8i2.1354

Abstract

There are possible problems arise during construction of project that can cause delays. Delays can cause losses in the form of fines, overhead costs, additional salaries and rental tools and other. To overcome the problems, there are some ways to achieve project completion in due time. The purpose of this study was to analyze the acceleration of the project duration by utilizing crashing method and its impact on project cost. The object of the case study was the construction of Lampung Regional Police Headquarter. The scenario utilized was increased the number of workers by 35% and the added working hours by four hours. The results show by increasing the number of workers across eleven project activities, the project duration was crashed to 252 days or two days earlier than the scheduled time and the project cost was decrease to Rp. 23,964,647,646.00 or 0.908% lower than the scheduled cost. The results also show by adding four more working hours across ten project activities, the project duration was crashed to 253 days or one day earlier than the scheduled time and the project cost was decreased to Rp. 23,995,417,215.00 or 0.781% lower than the scheduled budget. Keywords: Project Acceleration, Crashing method, increase of the number of workers, the addition of working hours
Kajian Perbaikan Tanah Dasar dan Proteksi Lereng pada Rencana Jalur Ganda Kereta Api Antara Giham-Martapura Hidayat, Oktario Eko; Afriani, Lusmeilia; Siregar, Amril Ma'ruf
Jurnal Rekayasa Sipil dan Desain (JRSDD) Vol. 8 No. 3 (2020): Edisi September 2020
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v8i3.1405

Abstract

The train is a means of transportation favored by the community because the train is one of the modes of transportation that has special characteristics and advantages. Along with the development of infrastructure development in Lampung Province and South Sumatra Province, the planning and design of a building must be done carefully and well, one of them is by building a double track between Giham - Martapura, South Sumatra because the application of one track has many obstacles. It is hoped that the addition of the double track can make the train schedule more timely and can improve the quality of the trip. Based on the results of the Atterberg boundary test the soil originating from the undisturbed soil sample of the Giham-Martapura railroad gets an PI value <LL-30 (26.51% <27.95%), then the land based on the AASHTO system is classified into A -7-5 that is clay soil and as subgrade material has normal to poor evaluation. Keywords: railroad, land, double track, slope protection.
Analisis struktur atas jembatan kereta api jalur tunggal pc i girder bentang 35 meter way pengubuan Wahyuddin, Muhammad Tri; Bayzoni, Bayzoni; Siregar, Amril Ma'ruf
Jurnal Rekayasa Sipil dan Desain (JRSDD) Vol. 8 No. 3 (2020): Edisi September 2020
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v8i3.1490

Abstract

Beton prategang merupakan jenis beton dengan tulangan baja ditarik dan menghasilkan sistem kesetimbangan pada tegangan dalam tarik pada baja dan tekan pada beton yang dapat meningkatkan kemampuan beton menahan beban luar. Terdapat beragam bentuk profil gelagar beton prategang antara lain box girder, profil U, dan profil I. Pada analisis struktur atas jembatan ini digunakan gelagar profil I atau disebut juga PC I girder. Tujuan dari penelitian ini adalah menganalisis struktur atas jembatan dengan gelagar profil I, menghitung dan melakukan kontrol keamanan terhadap besar lendutan, geser, tegangan serta momen ultimit.Berdasarkan analisis struktur atas jembatan diperoleh dimensi PC I girder dengan tinggi 2,17 m, lebar bidang bawah 0,75 m, lebar bidang atas 0,5 m, dan lebar bidang badan 0,25 m. Pada perhitungan gaya prategang didapatkan gaya prategang awal sebesar 13513,98 kN, gaya prategang saat jacking sebesar 15898,8 kN, dan total kehilangan gaya prategang sebesar 4291,811 kN atau sebesar 27%, sehingga diperoleh nilai gaya prategang efektif sebesar 11606,99 kN. Dan pada perhitungan momen ultimit dinyatakan aman karena diperoleh kapasitas momen ultimit pada balok prategang sebesar 21047,65905 kNm yang nilai nya lebih besar dari momen ultimit terbesar dari hasil kombinasi yaitu sebesar 13764,95 kNm.Kata Kunci : Struktur Atas Jembatan, PC I Girder, Beton Prategang
Implementasi Sistem Manajemen Mutu ISO 9001:2015 PT Nindya Karya (Persero) pada Proyek Constructing of Nine (9) New Buildings and Supporting Infrastructures of UIN Raden Fatah Palembang Sianturi, Anita Christiani; Kustiani, Ika; Siregar, Amril Ma'ruf
Jurnal Rekayasa Sipil dan Desain (JRSDD) Vol. 8 No. 4 (2020): Edisi Desember 2020
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v8i4.1535

Abstract

Sistem manajemen mutu merupakan uraian proses kerja yang harus dilaksanakan secara berurutan, konsisten, dan sesuai dengan prosedur serta tata kerja yang berlaku, untuk menerapkannya dibutuhkan standar pengendalian dan penjaminan mutu secara umum. Standar sistem manajemen mutu secara umum adalah ISO 9001 yang diakui internasional dan bersifat global untuk berbagai bidang usaha. Tujuan penelitian ini adalah untuk mengidentifikasi tingkat implementasi sistem manajemen mutu ISO 9001:2015 PT. Nindya Karya (Persero) pada proyek Constructing of Nine (9) New Buildings and Supporting Infrastructures of UIN Raden Fatah Palembang dan menyelidiki kendala-kendala yang terjadi dalam penerapan sistem manjemen mutu. Data sekunder yang digunakan adalah berupa dokumen kualitas yang terdiri dari beberapa level dokumen, sedangkan data primernya berupa kuesioner. Pertanyaan kuesioner mengacu kepada 7 klausul ISO 9001:2015, yaitu konteks organisasi, kepemimpinan, perencanaan, pendukung, operasi, evaluasi kinerja, dan peningkatan. Hasil penelitian menyimpulkan bahwa PT Nindya Karya (Persero) layak untuk mendapat sertifikat ISO 9001:2015 dengan tingkat implementasi sebesar 75,18%. Kendala yang dialami dalam pelaksanaan proyek terdapat pada klausul kepemimpinan, perencanaan, dan peningkatan.
Analisis Investasi Pembangunan Proyek Spam (Sistem Penyediaan Air Minum) Kota Bandar Lampung Nabila, Andri Abyan; Kustiani, Ika; Siregar, Amril Ma'ruf
Jurnal Rekayasa Sipil dan Desain (JRSDD) Vol. 9 No. 2 (2021): Edisi Juni 2021
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v9i2.1772

Abstract

In an effort to meet the needs of drinking water for the community, the city government of Bandar Lampung pioneered the development of a Drinking Water Supply System (SPAM), the authors reviewed the analysis of investment in the construction of the Bandar Lampung City SPAM project. The purpose of this study was to determine the feasibility of a SPAM development project assessed from financial parameters. In this study, the feasibility of the economic aspect was carried out by reviewing the following assessment parameters, namely Net Present Value (NPV), Benefit Cost Ratio (BCR), Internal Rate of Return (IRR) and Payback Period (PP). The data used are detailed data on SPAM cost budget, SPAM working drawings and water consumption levels, as well as data from BI in the form of interest rates and inflation rates. From the analysis, it can be concluded that the inflation rate in Indonesia is based on a projection for 25 years, namely between 4% -10% per year, the BI rate based on projections in 2018-2057 ranges from 6% -12% per year, the total investment in SPAM development is Rp. .750,000,000,000.00, from the existing scenario it is concluded that the Bandar Lampung SPAM development project is not financially feasible. However, SPAM development is economically feasible because it increases water availability and the coverage of existing services and also expands regional development in the city of Bandar Lampung.Keywords: analiysis, SPAM, scenario
Co-Authors ., Bayzoni Aftortu, Muhammad Rizqika Agung Cahyo Nugroho Aleksander Purba Anma Hari Kusuma, Anma Hari Anungputri, Pramita Sari Bayzoni Bayzoni, Bayzoni Caesario, Racmad Diwantari, Windy Putri Dwi Herianto Dzakiroh, Alda Alfiah Fanhar, Maulyda Nur Annisa Fikri Fikri Hasri, Marsa Murbawangi Hasti Riakara Husni Hidayat, Oktario Eko Hutapea, Raditya Eros Witantra Ifadianto, Nugroho Ika Kustiani Indraningtyas, Lathifa Jati, Ciptaning Weargo Junaidi, Tas'an Khairi, Ilham Fajar Khasanah, Felin Kristianto Usman Lahay, Almira Fardhani Lusmeilia Afriani Munti Sarida Nabila, Andri Abyan Nur Arifaini nur syahidah aini Panji Kurniawan Patakom, Kasri pentawan, yota Pramana, I Dewa Made Agung Purwadi, Ofik Taufiq Putra Sianipar, Michael Yuda Cen Qadar Hasani Rindiani, Rahma Indah Siagian, Andre Jonathan Sianturi, Anita Christiani Tobing, Imelda Margaretha Wahyuddin, Muhammad Tri Warikar, Yance Y D Wira Tama, Ahmad Ega Yuliandari, Puspita