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INDONESIA
MEDIA KOMUNIKASI TEKNIK SIPIL
Published by Universitas Diponegoro
ISSN : 08541809     EISSN : 25496778     DOI : -
Core Subject : Engineering,
Civil Engineering, Building, Construction & Architecture
Media Komunikasi Teknik Sipil (ISSN 0854-1809) published twice in a year, in July and December. The article can be product of researches, scientific thoughts or case study, in civil engineering and isn’t formed by politics, commercialism, and subjectivity unsure. This scientific journal contains articles of thought and research results in Civil Engineering that have never been published in scientific journals or other media.
Arjuna Subject : -
Articles 471 Documents
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Pengaruh Sifat-Sifat Fisik dan Kimia Bahan Pozolan pada Beton Kinerja Tinggi Ilham, Ade
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 13, Nomor 3, Edisi XXXIII, OKTOBER 2005
Publisher : Department of Civil Engineering, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (242.622 KB) | DOI: 10.14710/mkts.v13i3.3923

Abstract

High-performance concrete is concrete type resulted from mixing pozzolanic materials into concrete mixture. Materials properties of pozzolan in the form of fine powder, contains high silica and reactivity in a condition. This study uses three type of pozzolan covering fume silica, rice husk ash, and fly ash. Naming of concrete adapted for mixed pozzolan, that is silica fume concrete (SFC), rice husk ash concrete (RHAC), and fly ash concrete (FAC). Materials of concrete mixture use elementary materials (cement, water, coarse aggregate, and fine aggregate) which is equal to air-binder factor between 0.25 - 0.39. The results of indicating that different chemical composition and physical properties of each materials of pozzolan can cause different of fresh concrete, demand of water achieved and also compressive strength reached by SFC, RAHC and FAC. Keywords: silica fume, rice husk ash, fly ash, high-performance concrete, high workability, high-strength concretePermalink: http://www.ejournal.undip.ac.id/index.php/mkts/article/view/3923[How to cite: Ilham, A., 2005, Pengaruh Sifat-Sifat Fisik dan Kimia Bahan Pozolan pada Beton Kinerja Tinggi, Jurnal Media Komunikasi Teknik Sipil, Volume 13, Nomor 2, pp. 75-85]
Pengaruh Perubahan Iklim terhadap Hidrograf Banjir di Kanal Banjir Timur Kota Semarang Suripin, Suripin; Kurniani, Dwi
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 22, Nomor 2, DESEMBER 2016
Publisher : Department of Civil Engineering, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (906.04 KB) | DOI: 10.14710/mkts.v22i2.12881

Abstract

East Flood Way is one of the rivers in Semarang City that often cause flooding. Flood water level in the East Flood Way is affected by the discharge of storm water runoff and tide (rob). Facts on the ground indicate that the flood water level in the canal tends to increase from year to year. One possible reason is the increased flood discharge associated with climate change, besides the impacts of land use changes. This study aims to analyze the impacts of climate change on rainfall characteristics and their effects on flood hydrograph in the East Flood Way. The study begins with the collection and analysis of historical rainfall data to get a change of rainfall characteristics over time. The flood hydrograph was then analysed by HEC HMS. The results showed that in the period of last 30 years annual rainfall and maximum daily rainfall tended to increase of 22.64 mm / year and 2.56 mm / year consecutively, while the number of rainy days tend to decrease of 4 days / year. As a result of changes in the characteristics of the rainfall, the flood discharge of East Flood Way is expected to increase in the range between the 15.10 m3/s (31.5%) for 2-year return period up to 32.28 m3/s (25.5 %) for 200-year return period.
Manajemen Arus Lalulintas pada Sistem Jaringan Jalan Kota Semarang Menggunakan Perangkat Lunak EMME2 Yulipriyono, Epf. Eko; Basuki, Kami Hari
MEDIA KOMUNIKASI TEKNIK SIPIL Tahun 17, Nomor 3, OKTOBER 2009
Publisher : Department of Civil Engineering, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (507.203 KB) | DOI: 10.14710/mkts.v17i3.4183

Abstract

The pattern of Semarang Road Network is radial, so outbound/inbound traffic from/to central of city are high. Caused by this conditions, the radial roads are very crouwded especially in morning and afternoon peak hours. This crouwded traffic could be reduced by introducing the peripheral roads which connected some radial roads. Analysis method is making simulation model  by EMME/2  software. The as-built model is then calibrated by existing secondary and primary data for its significancy. After the model was built, it is conducted scenarios of the management of traffic flow on road network system by existing road network model. The optimum performance of road network system is benefit of this study. The study will give wider vision to macro movement efficiently without conducting costly field experiment. The improvement on road capacity and management implementation of traffic direction is possibly to conducted that simulation tool has accomodated the characteristics of movement and rute preference in natural way. There are 5 scenarios such as alternative 1 (one way direction), alternative 2 (road capacity improvement), alternative 3 (two way direction), alternative 4 (road capacity improvement and policy of one way direction) and alternative 5 (road capacity improvement and policy of two way direction). The study concluded that alternative 2 (road capacity improvement) and alternative 5 (policy of 2-way direction and road capacity improvement) will increase road performance. Keywords : road network, simulation, road performance, EMME/2. ABSTRAK Kota Semarang mempunyai sistem jaringan jalan dengan pola radial sehingga ruas-ruas jalan dengan arah menuju ke pusat kota menanggung beban lalulintas yang berat. Akibatnya, sering timbul kesemrawutan pada puncak pagi maupun sore hari, dan perlu dipikirkan pengembangan ruas jalan periferal yang menghubungkan ruas-ruas jalan radial. Metode analisis dilakukan dengan pembuatan model simulasi dibantu perangkat lunak EMME/2. Model yang terbangun dikalibrasi dengan data sekunder dan primer untuk menjadikan model yang signifikan kemudian dilakukan skenario penanganan manajemen arus lalulintas pada sistem jaringan jalan pada model jaringan jalan yang ada. Kinerja sistem jaringan jalan yang optimum merupakan manfaat dari studi ini dan hal ini akan dapat memberikan gambaran yang lebih luas mengenai efisiensi pergerakan secara makro tanpa harus melakukan ujicoba di lapangan karena biayanya cukup mahal. Peningkatan kapasitas jalan dan penerapan manajemen arah arus lalulintas dimungkinkan dapat dilaksanakan mengingat alat simulasi yang digunakan sudah mengakomodasi karakteristik pergerakan dan perilaku pemilihan rute secara wajar. Dalam studi ini dibuat 5 skenario yaitu alternatif 1 (satu arah), alternatif 2 (peningkatan kapasitas jalan), alternatif 3 (dua arah), alternatif 4 (peningkatan kapasitas jalan dan pemberlakuan jalan satu arah) dan alternatif 5 (peningkatan kapasitas jalan dan pemberlakuan jalan dua arah). Hasil analisis menyimpulkan bahwa alternatif 2 dan alternatif 5 dapat meningkatkan kinerja jalan.Kata Kunci: jaringan jalan, simulasi, kinerja jalan, EMME/2Permalink: http://www.ejournal.undip.ac.id/index.php/mkts/article/Metadata/4183[How to cite: Yulipriyono, E. dan Basuki, K.H., 2009, Manajemen Arus Lalulintas pada Sistem Jaringan Jalan Kota Semarang Menggunakan Perangkat Lunak EMME2, Jurnal Media Komunikasi Teknik Sipil, Tahun 17, Nomor 3, pp. 257-271]
Komposisi Efektif Batok Kelapa sebagai Karbon Aktif untuk Meningkatkan Kualitas Airtanah di Kawasan Perkotaan Salim, Noor; Rizal, Nanang Saiful; Vihantara, Ricky
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 24, Nomor 1, JULI 2018
Publisher : Department of Civil Engineering, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (331.209 KB) | DOI: 10.14710/mkts.v24i1.18865

Abstract

Shallow groundwater in urban areas today is no longer fully utilized directly for domestic human needs. Some of the factors that cause, among others, due to pollution of springs by household waste, too much groundwater production resulting in the reduced amount of ground water. Finally the water function as a solvent and the neutralizer of the pollutant decreases as the water becomes less clear. By utilizing coconut shells as activated carbon mixed with silica sand, zeolite, and manganesee in this research can reduce turbidity, TDS and ground water PH so that the water produced can meet clean water standards according to PERMENKES/RI No.416/IX/1990. The objective of this study was to find an effective mixture composition to purify water using 5 different mixing compositions and it can be concluded in this study that coconut shells used as activated carbon amount to 35% of total media composition. So the most optimal composition to produce water with good quality of 35% active carbon, 25% silica sand, manganese 20%, 20% zeolite. In this composition also, Mangan (Mn) and Iron (Fe) have decreased and meet the quality standard of raw water quality as required by PERMENKES quality standard of Class B water quality.
Permodelan Faktor Pengaruh Change Order Pada Proyek Konstruksi Sulistio, Hendrik; Wibowo, M. Agung
MEDIA KOMUNIKASI TEKNIK SIPIL Tahun 18, Nomor 1, PEBRUARI 2010
Publisher : Department of Civil Engineering, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (3652.966 KB) | DOI: 10.14710/mkts.v18i1.7844

Abstract

Change order at project of road cobstruction almost cannot avoid. Change of work happened because of field needs, and completeness of physical work to be in line with the initially project’s purpose. Some research of change order can influence by efficiency, execution, degradation of profit, disput and claim, losing productivity and degradation of performance. The research done by exploring form former research about change order, and looking at those research is the any opportunity to check furthermore with paying attention to the factors which not yet checked. The research conducted by 4 analysed phase to former research those are not research about change order., and looking at those 1 and phase 2 referred as seeking phase of step., phase 3 refeered as analysis phase, and phase 4 reffered as discovery phase. The research result found that variable of change order can be developed furthermore by researching the influence of change order to construction project performance related to losing productivity with model. Keywords : Change order, Soft model, Developing models.   Abstrak   Change order pada proyek konstruksi jalan hampir tidak dapat dihindari. Perubahan pekerjaan terjadi karena kebutuhan lapangan, dan untuk menyempurnakan pekerjan fisik agar sesuai dengan tujuan semula proyek. Beberapa penelitian Change order menunjukkan bahwa change order dapat juga mempengaruhi efisiensi, pelaksanaan, penurunan profit, klaim dan perselisihan, kontingensi, kehilangan produktivitas, dan penurunan performa. Tujuan penelitian adalah meneliti faktor-faktor change order pada kehilangan produktivitas dan performa proyek konstruksi, berdasarkan penelitian terdahulu mengenai pengaruh change order pada proyek konstruksi. Penelitian dilakukan dengan menggali dari penelitian terdahulu tentang change order, dan melihat penelitian-penelitian tersebut apakah ada peluang untuk meneliti lebih lanjut dengan memperhatiakn faktor-faktor yang belum diteliti. Penelitian dilakukan dngan 4 fase analisis terhadap penelitian terdahulu yaitu fase 1 dan 2 disebut fase pencarian langkah, fase 3 disebut fase analisis dan fase 4 disebut fase penemuan. Hasil penelitian mendapatkan bahwa variable change order dapat dikembangkan lagi dengan meneliti pengaruh change order terhadap performa proyek kostruksi dikaitkan dengan kehilangan produktivitas dengan permodelan. Kata-kata Kunci : Change order, Soft model, Tahapan model
Opsi KPBU Proyek SPAM Regional Keburejo Provinsi Jawa Tengah: Pendekatan Manajemen Risiko Sutantiningrum, Kartika Hapsari; Hatmoko, Jati Utomo Dwi
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 25, Nomor 1, JULI 2019
Publisher : Department of Civil Engineering, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (493.256 KB) | DOI: 10.14710/mkts.v25i1.19450

Abstract

To achieve the target of 100% drinking water service, Central Java Provincial Government holds regional water supply system (SPAM) programmes in Central Java, one of which is Keburejo regional water supply system (Kebumen and Purworejo). During the development phase, it was delayed due to project cost overrun, which later promotes an option for Public-Private Partnership (PPP). Consequently, this option may increase the project risks. This study aims to identify and analyze the risks of Keburejo regional water supply system project when the PPP option is chosen. This research adopted a mixed research method of qualitative and quantitative approach. Respondents in this study were 22 respondents from PDAB Tirta Utama, Dinas Bina Marga and Cipta Karya (BMCK) Central Java, Satker PSPAM Central Java, BBWS Serayu Opak, Pemkab (PDAM, Bappeda and DPU) Kebumen and Purworejo, as well as Business Entity (PT. TGM). The results found 24 risk factors, classified into pre-construction (10), construction (4), and Operational and Maintenance (10). The majority of these risks are considered ‘High’ (83.33%), with the highest risks in the pre-construction (37,5%), and the majority is under the Government responsibility (66.67%). These results are useful for Government as a reference in managing the risks of PPP SPAM Regional Keburejo and other regional SPAM projects in Indonesia.
Analisis Pengembangan Manfaat Situ (Studi Kasus : Situ Cangkuang, Kabupaten Garut, Jawa Barat) Bakhtiar, Bakhtiar
MEDIA KOMUNIKASI TEKNIK SIPIL Tahun 16, Nomor 3, OKTOBER 2008
Publisher : Department of Civil Engineering, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (217.843 KB) | DOI: 10.14710/mkts.v16i3.3701

Abstract

Situ in english is nearly meaning with lake. It is a reservoar in the surface of earth which naturaly shaped, also it can be shaped artificialy. Lake can be act as the water resource, water in the lake heve been coming from ground water, run off from rainfall, or supplied from river. The exist of lakes inside some areas is very important in create the hydrology equlibrium and run off arrangement. Also lakes can be used as a water resources for supply resident or domestic water demand, irrigation, ground water recharging, fishery, avoid sea water intrution, alernate energy, and tourism.  In order to maximie the potential purpose of lake it is important to be knowed the water to be used and it alocation, the amount of water discharges flow inside lake and  lake pit volume.  Determination of dependable discharge for the lake must be consider by wacth all water resources which contribute to the lake as a reservoar. Situ Cangkuang has two resources there are run off from its catchment area it self and the water discharge that can be suplied from Cipapar Dam, Cipapar River.  In this research, analysis was done by calcutating the various water demand, and comparing with available water supply with water balance principle.Then it can be known ideal volume, that is area and depth of the lake, in orther to give optimum benefit for the society.  Keywords: Water Demand, Water Supply, Rainfall, Run Off, Lake ABSTRAK Situ adalah suatu tampungan air atau reservoir diatas permukaan bumi yang terbentuk oleh alam, situ dapat juga dibentuk melalui rekayasa. Situ dapat berperan sebagai sumber air, air di dalam situ berasal dari air tanah, aliran air permukaan dari curah hujan, atau dialirkan sengaja dari sungai.  Keberadaan situ-situ di dalam suatu wilayah adalah sangat penting dalam menciptakan keseimbangan hidrologi dan pengaturan air permukaan. Situ juga dapat digunakan sebagai sumber air untuk pemenuhan kebutuhan rumah tangga atau domestic, irigasi, pengisian air tanah, perikanan, mencegah intrusi air laut, energy alternative, dan pariwisata. Untuk memaksimalkan potensi manfaat situ adalah penting untuk diketahui jumlah air yang akan digunakan dan alokasinya, besarnya debit air yang mengalir ke situ dan volume tampungan situ. Perhitungan debit yang diperlukan untuk mengisi situ harus mempertimbangkan secara seksama semua sumber air yang memberikan kontribusi pada situ sebagai suatu reservoir. Situ Cangkuang memiliki dua sumber air yaitu air aliran permukaan dari daerah tangkapan airnya dan curah hujan yang jatuh langsung diatasnya, serta debit air yang dapat dialirkan dari bending Cipapar yang terletak di Sungai Cipapar. Dalam penelitian ini, analisis telah dilakukan dengan menghitung berbagai keperluan air, lalu diperbandingkan dengan ketersediaan suplai air dengan prinsip keseimbangan air.  Sehingga dapat diketahui volume, yaitu luas area dikali kedalaman situ, dalam rangka memberikan manfaat optimum bagi masyarakat.Kata kunci: Kebutuhan Air, Suplai Air, Curah Hujan, Air Permukaan, SituPermalink: http://ejournal.undip.ac.id/index.php/mkts/article/view/3701[How to cite: Bakhtiar (2008), Analisis Pengembangan Manfaat Situ (Studi Kasus : Situ Cangkuang, Kabupaten Garut,  Jawa Barat), Jurnal Media Komunikasi Teknik Sipil, Tahun 16, Nomor 3, pp. 291-301]
Pengaruh Kerja Lembur pada Produktivitas Tenaga Kerja Konstruksi Sumarningsih, Tuti
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 20, Nomor 1, JULI 2014
Publisher : Department of Civil Engineering, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (458.74 KB) | DOI: 10.14710/mkts.v20i1.9247

Abstract

In order to meet the construction project completion, project duration often be compressed and work accelerated, especially in case the project held behind the schedule. One of several methods to accelerated a schedule is applying overtime work. Overtime work achieves schedule acceleration by increasing the amount of hours worked by labor beyond the typical 8 hours worked per day and 40 hours worked per week. Although there may be positive short-term benefits to working an overtime schedule, the long-term consequences are typically viewed as detrimental, such as fatigue, reduced productivity and safety, and increased absenteeism. The objective of this research is to present the effects of schedule overtime on construction labor productivity, and the impact of loss labor productivity to the labor costs. Overtime in this research is defined as the hours worked beyond the normal straight time hour (08.00 – 16.00). The data were collected by field observation and interview with the foremen. Field observation held in four weeks, with 28 labors included. The result of this research show a decrease labor productivity by 8,87% - 11,84%, and increase labor costs by 58,63% - 79,31%.
Pendekatan Model Pengendalian untuk Mengurangi Risiko Akibat Gelombang Tsunami Sriyana, Sriyana
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 13, Nomor 2, Edisi XXXII, JUNI 2005
Publisher : Department of Civil Engineering, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (669.141 KB) | DOI: 10.14710/mkts.v13i2.3914

Abstract

Impact happened waving tsunami result very big loss of soul good and material and damage of nature and by psycology very harming for hit by society is accident. As does which have experienced of State of specially at Provinsi of Nangroe Darusalam, Sumatra North, Banyuwangi Ciity which have experienced of earthquake disaster and wave of tsunami. With existence of mentioned of hence needing the existence of effort which must be done to lessen risk of effect of earthquake disaster and wave of tsunami. Intention of this article is to give input of in the form of operation model alternatively to lessen risk of effect of wave of tsunami. Approach of operation model cover Early Information System warning, House Podium, Infill Escape Hill, Green Belt, Sea Wall or Dam, with approach of the model if executed hence risk faced will decrease. Keywords: approach of operation model, tsunamiPermalink: http://ejournal.undip.ac.id/index.php/mkts/article/view/3914[How to cite: Sriyana, 2005, Pendekatan Model Pengendalian untuk Mengurangi Risiko Akibat Gelombang Tsunami, Jurnal Media Komunikasi Teknik Sipil, Volume 13, Nomor 2, pp. 106-113]
Penyelesaian Numerik Advection Equation 1 Dimensi dengan EFG-DGM Sadono, Kresno Wikan
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 22, Nomor 1, JULI 2016
Publisher : Department of Civil Engineering, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (604.517 KB) | DOI: 10.14710/mkts.v22i1.12406

Abstract

Differential equation can be used to model various phenomena in science and engineering. Numerical method is the most common method used in solving DE. Numerical methods that popular today are finite difference method (FDM), finite element method (FEM) dan discontinuous Galerkin method (DGM), which the method includes mesh based. Lately, the developing methods, that are not based on a mesh, which the nodes directly spread in domain, called meshfree or meshless. Element free Galerkin method (EFG), Petrov-Galerkin meshless (MLPG), reproducing kernel particle method (RKPM) and radial basis function (RBF) fall into the category meshless or meshfree. Time integration generally use an explicit Runge Kutta 4th order, Newmark- , HHT- , Wilson-  dll. This research was carried out numerical simulations DE, by combining the EFG method to solve the domain space and time integration with DGM methods. EFG using the complete order polynomial 1, and DGM used polynomial order 1. The equation used advection equation in one dimension. EFG-DGM comparison with analytical results also performed. The simulation results show the method EFG-DGM match the one-dimensional advection equations well.

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