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Keruntuhan Perancah Scaffolding Saat Pelaksanaan Pengecoran Sumargo, Sumargo; Nata, Ario Raja
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 14, Nomor 1, Edisi XXXIV, PEBRUARI 2006
Publisher : Department of Civil Engineering, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (316.471 KB) | DOI: 10.14710/mkts.v14i1.3929

Abstract

In the construction process either for multy story building or structure with large horizontal coverage area, the selection of formwork construction is very essential. The acceleration of assemblying – deassemblying – reassemblying and re-use of formwork become one of the alternatif selection for the type of formwork. Analysis of the formwork subject to service load (self weight and impact load) is compulsory to avoid unexpected failure. Selection of the best construction method and site conditioning according to the design, especially for pouring the concrete in a sloping area, is very crucial since it does not only influence time construction, but also type of material, equipment, and service load during the construction. Analysis method used was comparing service load (self weight and impact load) to scaffolding capacity provided by the manufacture. Keywords: scaffolding, pipe support, horry beamPermalink: http://www.ejournal.undip.ac.id/index.php/mkts/article/view/3929[How to cite: Sumargo dan Nata, A.R., 2006, Keruntuhan Perancah Scaffolding  Saat  Pelaksanaan Pengecoran, Jurnal Media Komunikasi Teknik Sipil, Volume 14, Nomor 1, pp. 1-12]
PENILAIAN KONDISI, SOLUSI PENANGANAN, DAN PREDIKSI UMUR SISA JEMBATAN WAY KENDAWAI I BANDAR LAMPUNG MENGGUNAKAN BRIDGE MANAGEMENT SYSTEM (BMS) Marshando, Panji; Sumargo, Sumargo
Jurnal Teknik Sipil Vol 16, No 1 (2020)
Publisher : Program Studi Teknik Sipil Fakultas Teknik Universitas Atma Jaya Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (561.725 KB) | DOI: 10.24002/jts.v16i1.4217

Abstract

Jembatan merupakan salah satu bagian terpenting dalam sarana transportasi khusus nya pada suatu jaringan jalan. Apabila jembatan mengalami kerusakan, maka akan sangat mempengaruhi sarana transportasi dan distribusi didaerah tersebut. Demi mencegah hal tersebut, maka diperlukan upaya preventif berupa pemeriksaan jembatan. Kegiatan pemeriksaan jembatan dilaksanakan dibawah sistem manajemen jembatan atau Bridge Management System (BMS). BMS merupakan sistem yang dikembangkan oleh Direktorat Jenderal Bina Marga dan terintegrasi dengan Sistem Informasi Manajemen Jembatan (SIMJ) yang berfungsi mengatur secara sistematis kegiatan pemeriksaan, rencana dan program, dan perencanaan teknis sampai pada pelaksanaan dan pemeliharaan jembatan.Penelitian jembatan ini adalah pada Jembatan Way Kendawai I Bandar Lampung. Data kondisi jembatan di dapat berdasarkan pengamatan dan pemeriksaan langsung di lapangan. Kondisi jembatan dinilai berdasarkan 5 kategori nilai, yaitu ditinjau berdasarkan struktur, kerusakan, kekuatan, kuantitas, fungsi dan pengaruh.. Berdasarkan penilaian kondisi, skrinning teknis serta analisis penanganan per element struktur jembatan, Jembatan Way Kendawai memiliki nilai 2 (Jembatan/elemen mengalami kerusakan yang memerlukan pemantauan dan pemeliharaan berkala) dan beberapa perkuatan pada abutment dan bagian sayap jembatan. Adapun prediksi sisa umur Jembatan Way Kendawai I yang didapatkan berdasarkan hasil investigasi nilai kondisi jembatan adalah 18,89 Tahun.
Investigasi Visual Jembatan Kp. Keling A & B Menggunakan Metode Bridge Management System (BMS) Kumalasari, Desy; Sumargo, Sumargo
TEKNIKA Vol. 14 No. 2 (2020): Teknika Juli - Desember 2020
Publisher : Politeknik Negeri Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5281/zenodo.13347979

Abstract

Penilaian kondisi jembatan merupakan usaha pemeliharaan jembatan untuk mempertahankan usia jembatan dan mencegah terjadinya kerusakan struktur jembatan yang berkelanjutan. jumlah kendaraan yang semakin meningkat tentu saja akan meningkatkan resiko penurunan kekuatan jembatan dan umur jembatan. Maka dari itu pemeriksaan dan penilaian kondisi jembatan merupakan hal yang sangat penting agar jembatan bekerja secara optimal. Paper ini akan dibahas tentang pemeriksaan salah satu jembatan di Provinsi Kepulauan Riau yaitu Jembatan Jembatan Kp. Keling A dan B yang mengacu pada Bridge Management System. Tujuan dari paper ini adalah untuk mengevaluasi kerusakan elemen dan struktur dari jembatan Kp. Keling A dan B sehingga dapat diperoleh gambaran kondisi dan memprediksi sisa umur jembatan. Berdasarkan investigasi visual yang telah dilakukan terhadap Jembatan Kp. Keling A dan B menujukkan bahwa jembatan mengalami beberapa kerusakan terutama pada elemen lantai kendaraan dan terdapat tulangan yang sudah terbuka di gelagar dan pilar  jembatan. Untuk meningkatkan kinerja dan mencegah kerusakan lebih lanjut maka dibutuhkan penanganan berupa rehabilitasi dan pemeliharaan rutin pada jembatan tersebut. Secara keseluruhan nilai kondisi Jembatan Kp. Keling A dan B adalah sebesar 2 sehingga prediksi sisa umur dari jembatan adalah 16 tahun. Hasil ini menunjukkan jembatan masih mampu berkinerja secara optimal hingga umur rencana.
Planning of Gosong Pasir Beacon Buoy with Flush-Mounted Aluminum Anode as a Corrosion Solution for SBNP Sumargo, Sumargo; Hijjatul Jensi Nun, Fauzaniah; Muthmainnah Az Zahra, Siti
Eduvest - Journal of Universal Studies Vol. 5 No. 7 (2025): Eduvest - Journal of Universal Studies
Publisher : Green Publisher Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59188/eduvest.v5i7.50832

Abstract

Based on Law No.43 of 2008, guarding and monitoring the coastline of Indonesia is very important, because it is closely related to the boundaries of the sea area that needs to be regulated for national defense. In the sea area, Navigational Aids (SBNP) type of beacon signs are used as a sign of state boundaries which have been regulated in Permenhub No.25 of 2011. In Indonesia, the beacon building in the waters of Gosong Pasir, Riau Province, experienced two collapses within 12 years. Therefore, this study examines more deeply and provides solutions to structural strength, cathodic protection, and mechanical electrical structures. The data used in this study are bathymetry data, underwater image data, sub bottom profile data, tide data, current data, and sediment sample data. Hydrodynamic modeling is carried out to obtain platform elevation and cycle time results. Furthermore, for corrosion problems, ASTM A252 Grade B and ASTM A53 Grade B steel pipes are proposed with Flush-Mounted Aluminum Anode cathodic protection with a trapezoidal cross section and coating process.
Analisis Kinerja Komposit Hibrid Aerated Autoclaved Concrete Panel – Lapisan Beton Bertulang Terhadap Lentur Nuryana Ferryana, Irwan; Sumargo, Sumargo; Oesman, Mardiana
Jurnal Teknik Sipil Vol 31 No 2 (2024): Jurnal Teknik Sipil - Edisi Agustus
Publisher : Institut Teknologi Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/jts.2024.31.2.13

Abstract

Abstract Aerated Autoclaved Concrete (AAC) precast panels are designed for 400kg/m2 loads. Installation of AAC panels is usually added an additional layer on the top surface as protection. The reinforced concrete layer on top of the AAC panels is often defined as super dead load. However theoretically, the additional layer can increase the strength and stiffness of the panels, provided that both layers work in a monolithic composite. Thus, the layer also functions as a structural component. However, it needs research to convince it. The study is used a fullscale experimental method using 1970x600x125mm AAC panels. The variables are the thickness of the concrete layer and the method of installing shear connectors. Variations of the thickness layers are 30,40, and 50mm with a compressive strength 24.5MPa. The concrete layer is reinforced by D6mm wiremesh 150mm spacing. Shear connectors are made of D6mm deformed rebar, 200mm spacing with two variations: welded and unwelded. Panels are loaded with flexural loads monotonically, using the third-point loading method. The results of the flexural test show that due to the reinforced concrete layer on the ACC panel, the load at the first crack and ultimate increased around 28-89%, and 33-109% respectively, and stiffness 174.70% until 363.31%.
Performance Assessment of Concrete Structure Urea Fertilizer Dust Scrubber Sumargo, Sumargo; Zainudin, Zainudin
Eduvest - Journal of Universal Studies Vol. 5 No. 8 (2025): Eduvest - Journal of Universal Studies
Publisher : Green Publisher Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59188/eduvest.v5i8.50793

Abstract

The concrete dust scrubber building is a crucial treatment unit in a urea fertilizer plant, responsible for processing urea dust emissions. Given Indonesia's location in the Pacific Ring of Fire, ensuring the building’s structural integrity against seismic influences is essential. Regular structural evaluations using Destructive Testing (DT) and Non-Destructive Testing (NDT) help assess concrete strength, reinforcement conditions, and environmental effects on corrosion. Structural performance analysis was conducted using Robot Structural Analysis Professional software. Due to safety concerns over urea dust emission leakage, core drilling (DT) was not performed. Instead, concrete quality was assessed using the Hammer Test and Ultrasonic Pulse Velocity (UPV), yielding a compressive strength of 24.4 MPa. Reinforcement steel was evaluated through NDT methods, including carbonation, chloride, pH, and Half-Cell Potential (CANIN) testing, to assess environmental radiation effects. Steel Hardness Testing showed an average yield strength of 398 MPa, with a minimum of 396 MPa. The results indicated a 24 MPa reduction in steel quality due to environmental radiation. Structural performance was analyzed using ASCE 41-17 standards through Tier 1, Tier 2, and Tier 3 evaluations. The results demonstrated that the concrete dust scrubber building meets the stiffness, strength, and deformability criteria of SNI 1726:2019 for Special Moment Resisting Frame (SRPMK) systems. This confirms the building’s structural viability for continued operation in the urea fertilizer production process.