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INDONESIA
JURNAL ILMIAH MEDIA ENGINEERING
Published by Universitas Sam Ratulangi
ISSN : 20879334     EISSN : -     DOI : -
Core Subject : Education,
Languange, Linguistic, Communication & Media
The Pasca Teknik Sipil (S2) Unsrat Open Journal System (PTSU-OJS) consist of Jurnal Ilmiah Media Engineering (Online Not Yet) and Jurnal Ilmiah Media Engineering (Print) are published fourannualy, in Februari, March, July and November.
Arjuna Subject : -
Articles 216 Documents
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ANALISIS BENTUK DASAR (BEDFORM) SALURAN TERBUKA AKIBAT VARIASI DEBIT DALAM KONDISI SEIMBANG (KAJIAN LABORATORIUM) Halim, Fuad
JURNAL ILMIAH MEDIA ENGINEERING Vol 3, No 1 (2013): JURNAL ILMIAH MEDIA ENGINEERING
Publisher : Sam Ratulangi University

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Abstract

Flume berupa alat laboratorium angkutan sedimen S8 MkII dengan dasar pasir digunakan sebagai kajian fisik di mana bentuk dasar (bedforms) saluran terbuka diamati. Pengamatan dilakukan akibat variasi debit aliran seragam untuk mendapatkan bentuk dasar (bedforms) saluran terbuka setelah kondisi keseimbangan (equilibrium) dicapai. Pengukuran aliran dilakukan dengan menggunakan micro currentmeter, sedangkan diameter butiran pasir ditentukan dengan menggunakan analisa saringan (Sieve Analysis) dan sebagai pengontrol karakteristik pengaliran digunakan Bilangan Froude. Dari hasil pengamatan yang dilakukan dapat disimpulkan bahwa bentuk dasar (bedforms) saluran terbuka dipengaruhi oleh besarnya Bilangan Froude dan diameter pasir. Hasil pengamatan berdasarkan rumus empiris Simon dan Richardson berdasarkan fungsi diameter jatuh median dan daya aliran τ0U memperlihatkan bedforms pada daerah dunes. Hasil pengamatan berdasarkan rumus empiris Athaullah yang merupakan hubungan antara Bilangan Froude dan kekasaran relatif (R/d) memperlihatkan Bilangan Froude < 1 atau aliran subkritis, bedformsnya adalah jatuh pada daerah aliran rejim bawah (lower regime). Hasil pengamatan berdasarkan rumus empiris Van Rijn yang merupakan hubungan antara parameter partikel nirdimensi (d•) dengan parameter transport-stage (T) memperlihatkan bedforms adalah dunes. Debit yang berbeda-beda dapat mempengaruhi bedforns karena keseimbangan bedforms tergantung pada kemampuan debit tertentu untuk menggerus serta ketahanan material terhadap energi yang ditimbulkan. Kata kunci : flume, bedforms, equilibrium, dunes, lower regimes
KAJIAN KUAT TEKAN DAN KUAT TARIK BETON RINGAN MEMANFAATKAN SEKAM PADI DAN FLY ASH DENGAN KANDUNGAN SEMEN 350 kg/m3 Puro, Sarjono
JURNAL ILMIAH MEDIA ENGINEERING Vol 4, No 2 (2014): JURNAL ILMIAH MEDIA ENGINEERING
Publisher : Sam Ratulangi University

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Abstract

Beton ringan dengan memanfaatkan sekam padi sebagai pengganti agregat kasar merupakan salah satu produk alternatif yang dimungkinkan dapat dimanfaatkan sebagai bahan bangunan. Penelitian ini bertujuan untuk mengetahui sifat mekanik beton ringan sekam padi dengan berbagai variasi campuran dan kandungan semen 350 kg/m³ terdiri dari 2 (dua) komposisi yaitu komposisi D dengan variasi sekam padi dan komposisi C dengan komposisi sekam padi tetap dengan menggunakan sampel silinder 30 x 15 cm . Material lain yang digunakan adalah semen, pasir, abu terbang. Penambahan abu terbang dengan variasi komposisi berturut-turut 0%, 5%, 10%, dan 15% terhadap berat semen. Nilai faktor air semen digunakan dengan variasi persentase terhadap berat semen. Pengujian mekanis beton yang dilakukan adalah berat jenis, kuat tarik, kuat tekan dan kuat lentur. Berat jenis beton tertinggi dan terendah dari seluruh komposisi yaitu: 1899,25 kg/cm3 dan 1705,66 kg/cm3. Hasil pengujian kuat tekan tertinggi rata-rata umur 28 hari komposisi D adalah D2 = 238,83 kg/cm2, kuat tekan tertinggi komposisi C adalah C1 = 229,63 kg/cm2. Hasil uji kuat tekan secara keseluruhan komposisi D lebih tinggi dibanding komposisi C. Hasil pengujian kuat tarik komposisi D adalah D2 = 17,98 kg/cm2, kuat tarik tertinggi komposisi C adalah C2 = 18,63 kg/cm2. Hasil uji kuat tarik sebagian besar komposisi D lebih tinggi dibanding komposisi C. Hasil pengujian kuat lentur komposisi D adalah D1 = 46,1 kg/cm2, kuat lentur tertinggi komposisi C adalah C1 = 30,7 kg/cm2. Hasil uji kuat lentur secara keseluruhan komposisi D lebih tinggi dibanding komposisi C. Penambahan fly ash sebesar 5% berpengaruh pada peningkatan kuat tarik pada komposisi D2 dan C2. Hasil uji tekan yang memenuhi kriteria beton ringan struktur adalah komposisi D1, D2, D3, C1, C2, C3 dengan kuat tekan terkecil 204,16 kg/cm2 Kata Kunci: Beton ringan, sekam padi, fly ash, berat jenis, kuat tarik, kuat tekan, kuat lentur
VARIASI DIMENSI BENDA UJI TERHADAP KUAT TARIK LENTUR BETON MUTU TINGGI Kaligis, Arthur Theodorus; Pangouw, Jorry D.; Mondoringin, Mielke R. I. A. J.
JURNAL ILMIAH MEDIA ENGINEERING Vol 6, No 1 (2016): JURNAL ILMIAH MEDIA ENGINEERING
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Kemampuan beton dalam menahan beban tarik relatif lebih kecil jika dibandingkan dengan kemampuan menahan beban tekan. Sikament LN adalah bahan tambahan yang digunakan dalam pembuatan beton dengan fungsi mempercepat pengerasan beton dan meningkatkan mutu beton. Tujuan dari penelitian ini adalah untuk mendapatkan perbandingan nilai kuat tarik lentur beton mutu tinggi dari berbagai ukuran dimensi benda uji. Dari 4 variasi komposisi campuran dengan penambahan Sikament LN sebesar 0%, 0,6% and  1%; akan didapatkan variasi komposisi campuran yang menghasilkan kuat tekan optimum, dengan menggunakan metode campuran beton dari American Concrete Institute (ACI 211.4R08).Hasil menunjukkan bahwa kuat tekan optimum didapat pada komposisi campuran BMTS-1%.. Korelasiantara kuat tarik lentur dan dimensi benda uji balok menunjukkan bahwa  semakin besar ukuran dimensi benda uji balok, semakin kecil nilaikuat tarik lentur balok beton mutu tinggi Kata kunci : beton mutu tinggi, kuat tarik lentur, kuat tekan, sikament LN
STUDI PEMETAAN PETA KOTA (STUDI KASUS KOTA MANADO) Sendow, Theo Kurniawan; Jefferson, Longdong
JURNAL ILMIAH MEDIA ENGINEERING Vol 2, No 1 (2012): JURNAL ILMIAH MEDIA ENGINEERING
Publisher : Sam Ratulangi University

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The rapid physical growing of Manado city influenced the city’s structure so that the current city’s map is not accurate because there are new streets that haven’t been pictured in the current city’s map. So an accurate delineation is needed to drumming up the Manado’s physical growing. TheGlobal Positioning System (GPS) is needed to draw an accurate street network map.The Manado’s street network map is a tool to obtain the image of the street network’s scientific data by drawing the signs and informations so that can be easily read and understandable. In the planning to make Manado’s street network map, research with the GPS Garmin 76CSx model is carrying out. GPS is a tool to detect a point at the earth’s surface with enough high carefulness. In a determining a position, the GPS’s receiving units receive the signals from GPS satellite and do the computation about the signals.In this research, to get to draw the Manado’s street network structure two important phases are carrying out which are data collecting process and drawing process with computerization. In the data collecting process, survey with GPS at all the street network in the Manado city’s range iscarrying out. And in the drawing process with computerization using computer soft wares which are MapSource and AutoCAD 2008, all of the data from GPS are transfered to computer which will be processed with the two programs.The street network tracking survey is carrying out so that every coordinate point in the Manado can be specified. The determining of the streets’ internodes is needed to process the coordinate point.The drawing process is carrying out in some phases, started with the GPS calibration to the street network drawing. From the drawing process, we can see that the carefulness of Bakosurtanal map is different with the GPS’s map. At the GPS’s map there are new streets that are none in the Bakosurtanal map and there are also the old streets that are gone now because of the housing development.Keywords: Map, Street Network, GPS
Analisis Neraca Air Sungai Tondano dan Optimalisasi Pemanfaatannya Susilo, Dewi M. M.; Sumarauw, Jeffry S. F.; Hendratta, Liany Amelia
JURNAL ILMIAH MEDIA ENGINEERING Vol 7, No 3 (2017): JURNAL ILMIAH MEDIA ENGINEERING
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Abstract

Water is an essential natural resource, much needed by humans and other living beings.It is transformed through the hydrological cycle. As a hydrological system, the Tondano River receives input in the form of rainfall and then processes it according to its characteristics into flow. The infiltrated water will rise again by the capillary force, moving horizontally as an interflow or vertically percolating to the aquifer layer that also flows as the baseflow. Water which is not restrained at ground level and also not infiltrated will become overland flow. In the end these three streams will enter the river as a stream / river flow. Thus the river is a joint point between overlandfl ow, interfl ow, basefl ow and rainwater that directly fall on the river body.               In line with the increasing number of population and the development of economy and industry, there is also increasing demand for water for various purposes (mainly for domestic, urban and industrial, irrigation, electricity, tourism and environment). On the other hand, the availability of water is still fixed so that the conflict of interest in water consumption has begun. This situation if allowed to drag on will interfere with people's life and national development in general. To anticipate this, it is necessary to manage water distribution at river level or even between river areas, comprehensively and integrated. Given the complexity of this water allocation system, the assistance of a computer model for water allocation, which is not only used in the planning stage, but also operationalally to assist water managers as a decision support system.                Water balance analysis is a part of water resource development activities, while water balance is a general description of the condition of water availability and its allocation in an area in the last 10 years. Water balance analysis is useful in the prevention of drought in the dry season.       Tondano river basin consists of several rivers. This study aims to determine the amount of water availability and water demand and optimization of its utilization in the river tondano            Optimization and water allocation in this study using secondary data in the form of debit mainstay and wide catchment area with software DSS ribasim            Results revealed that: - total water demand in Tondano River 1.38 m³ /sec.; total water availability in Tondano River is 0.93 m³ / sec.; The need for water and its allocation is for Irrigation Area, PLTA, PDAM.;Irrigation area is 100% fulfilled for DI Noongan, DI Kulo, DI Kinidow, IN Doud Sukur and DI Ranoweleng.; Hydroplasses of 774% of old tonsea, PLTA Tanggari 1 of 61.2%, PLTA Tanggari 2 by 47%.; PDAM Tondano at 100% availability, Manado PDAM at 100% availability. Keywords: water Balance, Tondano river , DSS ribasim, water availability, water demand
PERENCANAAN CRACK RELIEF LAYER PADA PERKERASAN LAPANGAN TERBANG STUDI KASUS : BANDARA SAM RATULANGI MANADO Jansen, Freddy
JURNAL ILMIAH MEDIA ENGINEERING Vol 2, No 4 (2012): JURNAL ILMIAH MEDIA ENGINEERING
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Crack Relief Layer merupakan lapisan beton aspal bergradasi terbuka dengan rongga udara yang tinggi, digunakan untuk mencegah keretakan yang akan muncul kelapis permukaan akibat dari perubahan temperatur dan beban. Lapisan ini ditempatkan antara lapisan base course dan surfacepada perkerasan flexibel. Lapisan ini disebut juga Asphalt Binder Course. Suatu studi kasus pada pembuatan perkerasan baru pada perpanjangan Runway 18 bandara Sam Ratulangi Manado akan dibahas dalam paper ini, termasuk juga hasil pemeriksaan laboratorium dan penelitian lapanganserta spesifikasi yang digunakan.Kata kunci : crack relief layer (CRL), hot mix asphalt
PENGARUH FREKUENSI OPERASI TERHADAP RESPONS DINAMIS TIANG PANCANG BETON KELOMPOK AKIBAT GETARAN VERTIKAL MESIN Balamba, Sjachrul
JURNAL ILMIAH MEDIA ENGINEERING Vol 4, No 1 (2014): JURNAL ILMIAH MEDIA ENGINEERING
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Pondasi mesin merupakan elemen struktur yang digunakan untuk meneruskan beban dari mesin di atas pondasi ke dalam tanah. Perencanaan pondasi mesin lebih kompleks daripada pondasi yanghanya menerima beban statis. Selain perlu memperhitungkan gaya statis yang berasal dari berat mesin dan berat pondasi, perencanaan pondasi mesin juga harus memperhitungkan gaya dinamis yang dihasilkan oleh mesin. Dua hal yang sangat penting dalam perencanaan pondasi mesin yaitu masalah tanah pendukung dan frekuensi getaran. Parameter tanah yang dibutuhkan antara lain adalah modulus geser tanah dinamis, redaman tanah dan angka poison. Sedangkan getaran mesin yang sangat menentukan adalah frekuensi getaran.Pada penelitian ini dianalisis pengaruh frekuensi getaran terhadap respons dinamik pondasi tiang pancang beton kelompok akibat getaran vertikal.Hasil yang diperoleh dari penelitian ini adalah pada hubungan antara a0 dengan Kc(gr) terlihat bahwa terdapat pengaruh dari penambahan faktor frekuensi non dimensi (a0) pada koefisen konstanta pegas Kc(gr) pada getaran vertikal. Semakin besar (a0) akan menyebabkan bertambah besarnya koefisen konstanta pegas. Pada hubungan antara a0 dengan damping ratio bahwa terdapat pengaruh dari penambahan faktor frekuensi nondimensi (a0). Semakin besar nilai a0 akan semakin besar ratio redaman. Semakin besar nilai a0 semakin kecil amplitudo getaran. Amplitudo getaran akan menjadi besar akibat bertambahnya beban.Kata kunci: pondasi tiang pancang beton, frekuensi getaran
AE-SiGMA ANALYSIS IN SPLIT-TENSILE TEST OF FIBER-REINFORCED CONCRETE (FRC) AT MESO-SCALE Mondoringin, Mielke R.I.A.J.; Ohtsu, Masayasu
JURNAL ILMIAH MEDIA ENGINEERING Vol 5, No 1 (2015): JURNAL ILMIAH MEDIA ENGINEERING
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Crack control plays a crusial role in the performance life of concrete structures. It present a serious treat to the performance  of concrete structures. Micro-cracking will appear when the strength of concrete is approached. Each of micro-crack occured inside concrete will produce a transient elastic wave which could be used to detect and localize cracks as well as to analize kinematically the fracture mechanisms in concrete. In this scientific paper, the SiGMA analysis is applied to the split-tensile tests of FRC to study the relation between the generation of macro-scale tensile crack and accumulation of meso-scale cracks as well as to know the role of the applied fiber on the cracking process of concrete. Results showed that the relation between macro-scale tensile failure and nucleation of AE sources in meso-scale is clarified in Split-tensile test. At the macro-scale, tensile-type cracks are only observed, while all kinds of tensile, mixed-mode and shear cracks are identified at the meso-scale. During propagation of tensile cracks at the macro-scale, other types of AE sources of mixed-mode and shear cracks were actively identified. Thus, nucleation of the fracture process zone is confirmed around the final failure surface.Mechanisms of macro-scale tensile failure process in concrete are clarified as the crack accumulation process at meso-scale determined by the SiGMA analysis. There exists a clear relation between macro-scale tensile failure process and nucleation of AE- sources in the meso-scale in the split-tensile test for the tensile strength of concrete. KEYWORDS:AE-SiGMA, fracture, Split-tensile-test, tensile-cracks,FRC,AE hits, AE events
TINGKAT PENCEMARAN UDARA CO AKIBAT LALU LINTAS DENGAN MODEL PREDIKSI POLUSI UDARA SKALA MIKRO Sengkey, Sandri Linna; Jansen, Freddy; Wallah, Steenie E.
JURNAL ILMIAH MEDIA ENGINEERING Vol 1, No 2 (2011): JURNAL ILMIAH MEDIA ENGINEERING
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Pencemaran udara memberi dampak negatif bagi kesehatan manusia akibat polutan yang dikeluarkan oleh kendaraan bermotor. Dari beberapa jenis polutan yang dihasilkan, CO merupakan salah satu polutan yangpaling banyak yang dikeluarkan oleh kendaraan bermotor. Tujuan dari penelitian ini adalah untuk mengetahui besarnya konsentrasi CO yang dikeluarkan oleh lalu lintas kendaraan bermotor khususnya di ruas jalan Sam Ratulangi Manado. Metode yang digunakan dalam penelitian ini yaitu melalui survei dan observasi lapangan.Analisis data dilakukan dengan menggunakan pemodelan polusi udara skala mikro. Untuk menentukan persentase CO yang ditimbulkan oleh lalu lintas yaitu dengan membandingkan hasil perhitungan pemodelandengan hasil pengukuran udara ambient. Hasil penelitian menunjukan bahwa besarnya konsentrasi gas CO akibat lalulintas di ruas jalan Sam Ratulangi Manado berkisar 7242.99 μg/m3 sampai 15577,07 μg/m3, belum melampaui ambang batas baku mutu udara ambient nasional. Dari jumlah polutan CO yang ada di udara, 80,22% - 92,00% berasal dari kendaraan bermotor.Kata Kunci : kendaraan bermotor, polutan, CO
Analisa Hambatan Samping dan Manajemen Lalulintas Ruas Jalan Jansen, Freddy; Sendow, Theo K.
JURNAL ILMIAH MEDIA ENGINEERING Vol 7, No 3 (2017): JURNAL ILMIAH MEDIA ENGINEERING
Publisher : Sam Ratulangi University

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Manado City is the capital of North Sulawesi province which is the center of  economic activities, education, and even other activities. As one of the developing cities in Indonesia, the continuous urban development had leads to increased inflows of vehicles, goods, and even people. These were results in arising of some traffic problems such as increased of existing traffic volume. In order to overcome this it is necessary that planned and directed traffic management so that the solution at one point will not cause problems at another point.For planned and targeted traffic management, it is necessary to know the behavior of traffic characteristics such as volume, speed and density. By knowing the volume and speed it can be known how much capacity of the road segment. Side constraints that occur on the roadway greatly affect the level of service on the road, the effect is very clearly visible is the reduced vehicle speed, so indirectly the side barriers that occur affect the reduced capacity and road performance.The long-term goal of this research  is to address the problems that occur such as traffic congestion due to increased traffic volume while for specific targets is to provide a formulation for planners, implementers of the world of road traffic management applications and to the world of academics on how to analyze traffic management and defense strategies Required road performance in Manado City.      To overcome the problem, it is necessary to analyze the effect of accurate side barriers in order to carry out good traffic management. Analysis of side obstacle factors can be used as an evaluation material for adjustment factor side barrier at the study location.The effect of side barriers was analyzed using a comparison between the capacities at high side resistance and at low side barriers.This capacity is obtained through the linear Greenshields, logarithmic Greenberg, and exponential Underwood models, which are then compared to capacity using the MKJI 1997 method. Capacity using Greenshields, Greenberg, and Underwood modeling was obtained by first finding the mathematical relationship between the highest Volume-Speed-Density parameter and the coefficient of determination (R2). The expected output of research is in the form of technology product in the form of traffic management and strategy of maintaining the required road performance in Manado City which can be directly utilized by society, government, industry, university. Publications, textbooks, models, social engineering on Capacity and Road Traffic Management Road-based roads.Keywords: side constraint, road capacity.

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