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All Journal Rekayasa Sipil Teknisia Simposium II UNIID 2017 Jurnal Sains Student Research
Edy Purwanto
Universitas Islam Indonesia
Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Engineering Other

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EVALUASI PONDASI MESIN DENGAN TIANG PANCANG AKIBAT GETARAN RECIPROCATING ENGINE (Studi Kasus PLTU UBOH 3 Banten) Muhammad Rifqi Abdurrozak; Anwar Purnomo; Edy Purwanto
Simposium II UNIID 2017 Vol 2 (2017)
Publisher : Simposium II UNIID 2017

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (882.456 KB)

Abstract

Pondasi yang menopang mesin dipengaruhi oleh beban statis yang berasal dari mesin dan pile cap serta getaran yang disebabkan dari gaya dinamis yang terjadi pada saat mesin beroperasi. Getaran yang berlebihan dapat menyebabkan mesin rusak dan memberikan efek yang merugikan pada struktur pondasi atau orang yang bekerja di dekat mesin tersebut. secara keseluruhan akan mengurangi tingkat produktivitas dari mesin dan pekerja. Hasil dari penelitian di PLTU 3 Uboh Banten, berat total mesin FD fan dan pondasi mesin 861,9794 kN masih aman terhadap kapasitas dukung tiang pancang. Pada pembebanan dinamik saat mesin beroperasi nilai amplitudo getaran vertikal pada unit 1 sebesar 0,09886 mm dan pada unit 2 sebesar 0,09371 mm, kemudian akibat pembebanan getaran horizontal nilai amplitudo di unit 1 sebesar 0,05678 mm dan pada unit 2 sebesar 0,2017 mm. Perbedaan nilai amplitudo tersebut dipengaruhi oleh parameter tanah yaitu modulus geser, semakin besar nilai modulus gesernya maka amplitudo yang terjadi semakin kecil sedangkan untuk pengaruh frekuensi putar mesin berbanding lurus dengan amplitudo dimana semakin besar frekuensi putar mesin maka semakin besar juga amplitdo yang terjadi.
ANALISIS POTENSI LIKUIFAKSI PADA PASIR VULKANIK DI PANTAI GLAGAH KULONPROGO BERDASARKAN DATA N-SPT Hanindya Kusuma Artati; Widodo Pawirodikromo; Edy Purwanto
TEKNISIA Vol. XXV, No. 2, November 2020
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.vol25.iss2.art6

Abstract

One of the most causes of damage to structures during earthquake is a liquefaction. Liquefaction happened in a loose sand which saturated under earthquake shaking.  Earthquake shaking will cause cyclic loading to the surface of the ground which potential for occurrence of liquefaction. The liquefaction phenomenon is a soil behavior under cyclic loads that occurs in just a few moments. Due to the short cyclic load, the soil mass suddenly changes from a solid limit to a liquid limit or has a main consistency such as liquid. Liquefaction events during an earthquake can be characterized by the presence of ground movement in the horizontal direction, seepage water out from fracture of the ground, movement of sloping or descending buildings, displacement of ground advance, and landslides. This study took a case study in Glagah Beach at Kulonprogo Regency. That is beach areas which is a landform alongside a body water which consist of loose particles such as sand where Yogyakarta International Airport (YIA) is located. Analysis was carried out to determine the potential of liquefaction based N-SPT data using the Seed, Martin & Lysmer (1975).  Based on these data, The Cyclic Stress Ratio (CSR) value is calculated, which is the ratio between the average shear stress caused by the earthquake with the effective vertical stress in each layer and the value of the Cyclic Resistance Ratio (CRR), which is the amount of soil resistance to liquefaction. The analysis in the Kulonprogo Regency area is an area that is considered to require liquefaction. Analysis of liquefaction potential based on on N-SPT data with the Seed, Martin & Lysmer (1975) method on a 6,3 magnitude earthquake. The Result indicate the potential for liquefaction occurs up to a depth of 8,5 meters.
Alternatif Desain Perkerasan Jalan dan Perkuatan Lereng Longsor Asrul Saputra; Edy Purwanto; Miftahul Fauziah
Rekayasa Sipil Vol. 17 No. 2 (2023): Rekayasa Sipil Vol. 17 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.2023.017.02.11

Abstract

This study aims to provide an alternative design for flexible pavement and slope reinforcemen. To simplify the analysis process, this research will use the Geo5 program, the Kenpave program, the Bina Marga 2017, the Fellenius method, and the Wedge method. The results of alternative 3 flexible pavement designs are AC-WC 4 cm, AC-BC 5 cm, AC Base 6 cm, and LFA Class A 40 cm, with a load repetition value of 2.363.985 ESAL until deformation damage occurs at a service life of 20 years. For the soil nailing slope reinforcement design, the safe factor value is 1.90 ≥ 1.30 for the Wedge method calculation, and the safety factor value is 1.34 ≥ 1.30 for the results of the Geo5 program.
ANALISIS INVESTASI PADA PEMBANGUNAN PERUMAHAN GRIYA FAHMI RIZKI DENGAN MODEL BISNIS KERJASAMA LAHAN Fajri Dediyansyah; Edy Purwanto; Albani Musyafa; Taufik Dwi Laksono
JOURNAL SAINS STUDENT RESEARCH Vol. 4 No. 5 (2026): Oktober: Jurnal Sains Student Research
Publisher : CV. KAMPUS AKADEMIK PUBLISING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61722/jssr.v4i5.12764

Abstract

The choice of GRIYA FAHMI RIZKI Housing Desa Alue Ie Mameh Kecamatan Kuala Kabupaten Nagan Raya Propinsi Aceh asre searc hobjectwas because the developer have to do investation analysis of economic engineering on to said construction. The housing construction is a project that needs large amount of initial fee (cash outflows) and longer time construction,mean while the income is obtained only after the sales stage (cash inflows) that will happen on the future. Therefore, the calculation for giving out depiction of costs and benefits on the concept of flow of fund is required.The result that happen because said uncertainty condition especially reviewed from economic aspect which willarise in the future. This analysis result certainly usable for receiving worthy decision in the investation by reducing thed is advantage in the future, for creditor and debitor.The high price of land for housing construction is caused by the increasing need for housing for each resident. The housing development profit sharing cooperation agreement between the land owner and the developer is a strategic partnership business model which aims to develop and utilize land owned by the land owner for property development projects by the developer. This agreement involves various aspects, including the distribution of profits, responsibilities and rights owned by each party. In this agreement, the land owner provides land as capital in a property development project, while the developer is responsible for development, planning, construction and marketing of the project.Referring to the background, this final assignment discusses the economic feasibility study of GRIYA FAHMI RIZKI II housing development techniques with Type 36/150 KPR of 70 units with a selling price of IDR 165,000,000 per unit using the discounted cash flow (DCF) method with the Net Present indicator Value (NPV), Benefit Cost Ratio (BCR), Internal Rate of Return (IRR), Break Even Point (BEP), and Pay Back Period (PBP).
ANALISI MANAJEMEN RISIKO DENGAN METODE AS/NZS 4360 PADA PELAKSANAAN PROYEK PEMBANGUNAN GEDUNG RAWAT INAP TERMASUK RUANG ISOSALI RSUD SULTAN ISKANDAR MUDA KABUPATEN NAGAN RAYA PROPINSI ACEH Syafriadi Betra; Edy Purwanto; Albani Musyafa; Taufik Dwi Laksono
JOURNAL SAINS STUDENT RESEARCH Vol. 4 No. 6 (2026): Desember : Jurnal Sains Student Research
Publisher : CV. KAMPUS AKADEMIK PUBLISING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61722/jssr.v4i6.12820

Abstract

Perusahaan konstruksi merupakan salah satu bidang yang dinamis jika dibandingkan dengan perusahaan lain, perusahaan konstruksi merupakan salah satu bidang usaha yang memiliki resiko tinggi. Manajemen risiko dalam mengelola perusahaan jasa konstruksi merupakan hal yang perlu diperhatikan dalam langkah perusahaan untuk terus mengembangkan perusahaannya. Australian / New Zealand Risk Management Standard (AS/NZS 4360) adalah metode yang dipilih untuk mengidentifikasi risiko pada proyek pembangunan Gedung Rawat Inap Termasuk Isolasi RSUD Sultan Iskandar Muda Kabupaten Nagan Raya Propinsi Aceh, melakukan penilaian dan merekomendasikan upaya pengendalian risiko. Jumlah korban kecelakaan fatal terbesar disebabkan oleh kelalaian pekerja dalam mengaplikasikan Alat Pelindung Diri (APD) terjadi pada kegiatan pemasangan mall ringbalk lantai II. Tujuan penelitian adalah untuk menganalisis manajemen risiko pada proyek pembangunan Gedung Rawat Inap Termasuk Isolasi RSUD Sultan Iskandar Muda Kabupaten Nagan Raya Propinsi Aceh di CV. Agung Mulya Pratama selaku penyedia jasa konstruksi. Jenis penelitian kualitatif analitik dengan instrumen wawancara mendalam, observasi, dan telaah dokumen. Analisis data menggunakan triangulasi sumber, data, dan metode. Penelitian dilakukan di CV. Agung Mulya Pratama pada bulan Juli sampai dengan Desember 2021. Terdapat 8 responden dari owner dan penyedia jasa yang menangani langsung proyek pembangunan Gedung Rawat Inap Termasuk Isolasi RSUD Sultan Iskandar Muda Kabupaten Nagan Raya. Penilaian tingkat kemungkinan dan konsekuensi. faktor-faktor yang teridentifikasi sebagai bagian dari sumber risiko dianalisis menggunakan standar pengukuran AS/NZS 4360, dalam hal memperoleh aspek-aspek risiko utama dengan menggunakan metode analisis faktor dan analisis komponen utama dari data hasil kuesioner. Dalam pengelompokan extreme risk terdapat 4 indikator risiko yaitu indikator risiko kondisi lokasi yang sulit dijangkau, desain yang salah atau tidak lengkap, kesulitan penerapan teknologi baru/khusus, dan keterlambatan pengiriman material, minimnya kesadaran pekerja dalam hal memakai APD, sehingga ada yang terjatuh, terjepit, dan terpijak paku.
Co-Authors Albani Musyafa Anwar Purnomo Artati, Hanindya Kusuma Asrul Saputra Fajri Dediyansyah Miftahul Fauziah Muhammad Rifqi Abdurrozak Syafriadi Betra Taufik Dwi Laksono, Taufik Dwi Widodo Pawirodikromo