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All Journal Portal: Jurnal Teknik Sipil
Muhammad Reza
Politeknik Negeri Lhokseumawe, Indonesia
Civil Engineering, Building, Construction & Architecture

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ASESMEN DAN PERKUATAN JEMBATAN PIPA CIBEET 2 Sumargo Sumargo; Muhammad Reza; Achmad Abrar Haziri; Noval Hasan
Portal: Jurnal Teknik Sipil Vol 11, No 2 (2019)
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/portal.v11i2.1520

Abstract

Abstrak — Jembatan pipa Cibeet merupakan jembatan rangka baja yang digunakan sebagai dudukan pipa 8 inci untuk distribusi minyak mentah. Diketahui bahwa jembatan 2 mengalami lendutan yang berlebihan sehingga perlu dilakukan asesmen dan perkuatan. Asesmen Jembatan dimaksudkan untuk mendukung infrastruktur transportasi minyak mentah yang sesuai dengan kriteria perencanaan yang berlaku dan perencanaan perkuatan jembatan. Dengan menggunakan metode perkuatan prategang eksternal, didapat dengan tujuan jembatan rangka baja dapat mengurangi lendutan pada jembatan. Pada jembatan Cibeet 2 juga mengalami konstruksi dengan diameter kabel ½ inci dengan, fu = 270 ksi. Jumlah kabel yang terpasang sebanyak 8 buah. Sehingga total kabel pada masing-masing sisi memanjang jembatan: 8 x ½ in = 4.0 in. Gaya prategang sebesar 80 ton yang diaplikasikan secara bersamaan pada kedua sisi memanjang jembatan yang berjarak 2.0 meter.Kata kunci : Gaya Prategang, Infrastruktur, Lendutan, Jembatan Pipa Cibeet.Abstract — The Cibeet pipe bridge is a steel frame bridge that is used as an 8 inch pipe holder for distribution of crude oil. It is known that Bridge 2 has excessive deflection so it needs to be assessed and strengthened. The Bridge Assessment is intended to support the crude oil transportation infrastructure in accordance with applicable planning criteria and bridge reinforcement planning. By using an external prestressed reinforcement method, it is obtained with the aim of a steel frame bridge to reduce deflection on the bridge. The Cibeet 2 bridge also underwent construction with a ½ inch diameter cable with, fu = 270 ksi. The number of cables installed as many as 8 pieces. So that the total cable on each side extends the bridge: 8 x ½ in = 4.0 in. A prestressing force of 80 tons was applied simultaneously on both sides of the bridge extending a distance of 2.0 meters.Keywords: Pre-stroke Style, Infrastructure, Deflection, Cibeet Pipe Bridge.
FEASIBILITY OF UTILIZATION EAFD AS CEMENT REPLACEMENT IN CONVENTIONAL CONCRETE Amir Fauzi; Syukri Syukri; Mulizar Mulizar; Muhammad Reza
Portal: Jurnal Teknik Sipil Vol 9, No 1 (2017)
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/portal.v9i1.661

Abstract

Abstract — Industrial waste products can be considered as renewable resources, one of them is a steel manufacturing, which produced dust waste contain sponge iron, scrap metal and other steel wastes that impacted to environment. This waste material was called Electric Arc Furnace Dust (EAFD). This study investigates the feasibility of using EAFD as a cement replacement compared to silica fume (SF) and fly ash (FA) in terms of Chemical composition, workability, setting time, compressive strength and rapid chloride permeability resistance. The results showed that workability of EAFD is almost similar to control even if percentage of EAFD was increased. It is not refer to FA more workable or SF less workable with increase percentage of replacement. Furthermore, the EAFD significantly affect the setting time, which 3% EAFD replacement bring to prolong final setting time to more than 24 hours, while the setting time of SF and FA did not significant affected along with the increase replacement percentage. In addition, the 3% EAFD is optimum replacement for compressive strength and it is equivalent replacement level to 5% SF and 15% FA. Finally, the EAFD enhance the resistance for rapid chloride permeability more than FA but less than SF.
ANALISA PROFIL MUKA AIR BANJIR SUNGAI KRUENG PASE KABUPATEN ACEH UTARA Ibrahim Ibrahim; Abdullah Irwansyah; Muhammad Reza
Portal: Jurnal Teknik Sipil Vol 9, No 2 (2017)
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/portal.v9i2.618

Abstract

Excess water capacity in river areas will cause flood hazards that mostly occur in downstream areas that are flood areas at high risk as a result of natural processes and the effects of human actions. In the case of floods, water runoff undermines the embankments and drowns agricultural / settlement areas upstream, and is aggravated by considerable sedimentation. Based on the existing problems, the analysis of the discharge and the water level (water profile) becomes very important to get a precise picture of locations prone to the overflow of the river Kr. This pase. Discharge and water profile analysis using HEC RAS software for various return periods. From the results of the research is expected to get a clear picture of the location that is vulnerable to overflow so that in handling the river will be on target. Based on the calculation using HEC RAS software, at point P 581 the water level condition at 2.3 years discharge the difference of the height of the embankment and the water level is 50 cm to 60 cm, while in the discharge condition 25 years the elevation of the face almost passes through the dike's height with a selisish of about 10 -15 cm. This condition is an unsafe category because for rivers whose debit is greater than 15 m3/s the minimum wavelength is 1.00 m. So that with good conditions at 2.3 years discharge and 25 years of discharge is very potential to occur overflow.Keywords: discharge, waterlevel, flood
Manajemen Risiko K3 Konstruksi pada Proyek PLTA Peusangan Kabupaten Aceh Tengah Muhammad Reza; Irham Irham; Bakhtiar A Wahab; Zairipan Jaya; Muntaqim Muhammad Simamora
Portal: Jurnal Teknik Sipil Vol 15, No 1 (2023): Edisi April
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/portal.v15i1.3965

Abstract

Proyek Pembangkit Listrik Tenaga Air (PLTA) Peusangan adalah proyek panjang jangka pekerjaannya. Proyek ini dimulai pada tahun 1998 dan direncanakan selesai pada tahun 2023. Banyak factor yang mengakibatkan keterlambatan proyek seperti konflik serta gempa dan tsunami yang terjadi di Provinsi Aceh. Proyek yang diperkirakan menghabiskan biaya sebesar Rp2.100.000.000.000 (dua koma satu triliun) bersumber dari Japan International Cooperation Agency (JICA). Penelitian ini dilakukan untuk mengidentifikasi potensi terjadinya risiko K3 pada Proyek pembangunan PLTA Peusangan. Dengan diketahui potensi terjadinya risiko K3, diharapkan dapat dilakukan penanganan awal untuk mencapai tujuan penerapan K3 yaituzero accident. Manajemen risiko kecelakan kerja dilakukan dengan metode Hazard Identification, Risk Assesment, Risk Control (HIRARC). penilaian terhadap kemungkinan kecelakaan kerja tersebut dengan menggunakan Standar AS/NZS 4360:2004. Pada standar ini, kecelakaan kerja dinilai dengan dua kriteria yaitu berdasarkan tingkat kemungkinan terjadi (probability) dan tingkat keparahan (severity). Secara rerata, tingkat kemungkinan terjadinya kecelakaan kerja pada kategori unlikely (36%) dan possible (64%). Sedangkan tingkat keparahan kecelakaan kerja pada kategori minor (32%) dan kategori moderate (68%). Tingkat risiko kecelakan kerja tidak ada yang masuk kepada kategori extreme. Tingkat risiko terbesar pada kategori moderate (46%), selanjutnya tingkat risiko kategori high (43%) dan tingkat risiko kategori low (11%). Hasilini menunjukkan bahwa Proyek Pembangunan PLTA Peusangan ini menerapkan K3 yang baik. Pekerjaan dapat disimpulkan menggunakan Alat Pelindung Diri (APD), Alat Pengaman Kerja (APK), Alat Pemadaman Api Ringan (APAR) dan juga keselamatan lingkungan kerja dengan baik.
Co-Authors Abdullah Irwansyah Achmad Abrar Haziri Amir Fauzi Bakhtiar A Wahab Ibrahim Ibrahim Irham Irham Mulizar Mulizar Muntaqim Muhammad Simamora Noval Hasan Sumargo Sumargo Syukri Syukri Zairipan Jaya