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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 16 Documents
 1   2 
Search results for , issue "Volume 28, Nomor 2, DESEMBER 2022" : 16 Documents clear
Permodelan Numerik Aliran Angin Pada Jalan Antara Bangunan Tinggi Dengan Modifikasi Sudut Datang Doni Priambodo; Yongky Sanjaya; Prasanti Widyasih Sarli; Herlien Dwiarti Setio
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 28, Nomor 2, DESEMBER 2022
Publisher : Department of Civil Engineering, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/mkts.v28i2.37220

Abstract

In fluid dynamics analysis, one of the things to do is to perform numerical modeling validated on the resultsof experimentation. In numerical modeling of wind flow there are several forms of modeling used includingRANS, LES, DNS, etc. where the modeling has its own advantages and disadvantages. Among these models,RANS is a model that has the cheapest computer expense compared to other models so that it has the highestworkability. Therefore, rans method testing (Reynolds Averaged Navier Stokes) was conducted to determinethe capability of turbulence models in checking wind speed contours on the road between 4 simplesymmetrical tall buildings with 0o, 30o, and 45o attack an gles validated with the results ofexperimentation. This research was conducted using RANS modeling (Reynolds Averaged Navier Stokes) andstandard turbulence model k-ε and validated using Low Speed Wind Tunnel and PIV (Particle ImageVelocimetry). According to the results of the test, U/Uo wind speed conditions obtained in wind modelingwith RANS and k-ε standards have errors that are still acceptable.
Local Inflow Analysis of Jatiluhur Reservoir with HEC-HMS Dedi Novrizal; Ferry Hermawan; Mochamad Agung Wibowo; Ifan Azwar Nasution
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 28, Nomor 2, DESEMBER 2022
Publisher : Department of Civil Engineering, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/mkts.v28i2.47912

Abstract

Inflow in Jatiluhur Reservoir located on the Citarum River is influenced by outflow from Cirata Reservoir and Saguling Reservoir which are above it. These three reservoirs are incorporated in the Citarum Cascade System Reservoir. This inflow analysis is related to the availability of water in the Jatiluhur Reservoir, which is a multi-purpose reservoir, which then becomes the mainstay of the water supply as a hydropower operation pattern. Runoff rain modeling using HEC-HMS software using data on rainfall, temperature, land cover, soil type and topography. Parameters generated from observation and modeling are coefficient of determination (R2), Nash-Stuclift (NSE), and Percent Bias (PBIAS). The results of the case study show that the parameters of the observed local inflow (R2: 0.693; NSE: 0.525; PBIAS: 9.88%) with data sources from the Jatiluhur Reservoir manager are better than the local inflow analysis results (R2: 0.533; NSE: - 0.457; PBIAS: 48.88%) with data sources from water level (TMA). Meanwhile, the total inflow of observations (R2: 0.982; NSE: 0.973; PBIAS: 1.14%) with data sources from the Jatiluhur Reservoir manager is better than the total inflow analysis results (R2: 0.932; NSE: 0.889; PBIAS: 9.43 %) with the data source from the water level (TMA).
Faktor-faktor Yang Mempengaruhi Niat Pengguna Untuk Mendukung Perbaikan Kebijakan Taksi Online Tarita Aprilani Sitinjak
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 28, Nomor 2, DESEMBER 2022
Publisher : Department of Civil Engineering, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/mkts.v28i2.45558

Abstract

Online-taxi are welcome as a new way in transportation. As a newcomer, there are still many weaknesses, particularly in service standard’s policy, causing passenger negative experiences. In order to minimize the issue, these study about improvement of online taxi policies was held. This research aims to analyzing the factors affecting user to support the improvement of online taxi policies according to passengers in Surabaya in Indonesia. Structural Equation Modelling-Partial Least Squares (SEM-PLS) was applied to estimate the relationship of research model. The results showed that the utilized mobile application, experience using an online taxi, and online taxi performance gave positive and significant influence to passenger satisfaction, where online taxi performance had the most positive and significant influence on passenger satisfaction. Next from the SEM-PLS method found that passenger satisfaction, positively and significant influencing the passenger intend to support the improvement of online taxi policies. Furthermore, the more positive passenger satisfaction the more positive the passengers support in online taxi policies improvement support the improvement of online taxi policies.
Keterlambatan Proyek yang Disebabkan oleh Owner: Evaluasi Faktor-Faktor Penyebab dan Klaim Kontraktor Jati Utomo Dwi Hatmoko; Raden Arya Pratistha; Arif Hidayat
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 28, Nomor 2, DESEMBER 2022
Publisher : Department of Civil Engineering, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/mkts.v28i2.45875

Abstract

Delays in construction projects are generally understood to be the sole responsibility of the contractor. In fact, these delays can also be caused by factors that actually are the responsibility of the owner, resulting in project completion exceeding the contract target date. As a result, the contractors can be affected and suffer losses due to delays that are not actually their responsibility. This study intends to evaluate project delays caused by the owner and the delay claims submitted by the contractor. This research is exploratory and uses a mixed method of quantitative and qualitative approach. Data was collected through interviews and questionnaires with 80 respondents of the construction industry. The study found five main factors causing delays caused by the owner, including: land acquisition problems, changes in design and work instructions, payment problems, and unclear drawings in the contract documents. Of these delays, the majority (93%) were claimed by contractors, with an average claim success rate of 53%, and the compensation generally in the form of extension of project completion time (63%). The most frequently chosen claim dispute settlement method (93%) is non-litigation settlement through negotiation. This research has provided a comprehensive overview of delays due to owners and the contractor claims, and gives valuable lessons for the construction industry stakeholders to cope with delays in the future.
Analisis Potensi Longsor Rombakan (Debris Flow) dengan Pemodelan Aliran di Lereng Gunung Abang, Kintamani, Bali. I Nengah Sinarta; Putu Ika Wahyuni
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 28, Nomor 2, DESEMBER 2022
Publisher : Department of Civil Engineering, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/mkts.v28i2.37157

Abstract

Debris flow was mass movement such as; clay, fine sand, organic waste and coarse material such as; gravel, rocks, organic waste, logs mixed with water. Based on historical information the slope of the ancient caldera of Mount Batur that were potentially threatened for the village with debris flows hazards including; Trunyan, Abang Batudinding and Buahan Village. Modeling with DFLOWZ software was supported by spatial data with input parameters namely; Digital Elevation Model (DEM) data and Polyline data. Modeling was an initial approach in predicting the debris inundation area. Research results to get the type of material and debris flow direction. The observed flow anatomy was debris flow in valleys and rivers at an altitude of ± 1500 msl, curved in the valleys of the hills and the direction of flow is to the west. The DFLOWZ analysis shows that the retained deposit area that has the potential to cause debris avalanches is 49,830 m2, with an inundation height based on 5-7 m thick slope valley. The results of the modeling serve as a form of early warning for communities affected by the threat of inundation of debris flows.
Studi Penilaian Kinerja Simpang Menggunakan Metode MKJI Dan Microsimulasi PTV VISSIM (Studi Kasus : Simpang Empat Denggung, Sleman, Yogyakarta) Dedy Firmansyah; Ria Miftakhul Jannah; Evi Puspitasari
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 28, Nomor 2, DESEMBER 2022
Publisher : Department of Civil Engineering, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/mkts.v28i2.46077

Abstract

Road intersections is designed to be able to move one lane of the road to another without any conflicts ofcongestion or traffic accidents. In planning, designing and operating road intersections services in Indonesiausing the Indonesian Highway Capacity Manual 1997 (IHCM). The use of IHCM is considered necessary toadjust to current conditions. Alternatives in the design and assessment of deviation performance can use PTVVissim microsimulation modeling. This study aims to analyze the differences in the results of the calculationof the performance road intersections using IHCM and Microsimulation of PTV Vissim. Locations used inthis study in the Denggung Road intersections of Sleman regency. The result is a significant difference in thecalculation of queue length using IHCM and Vissim. The largest queue length value from the north is 227.2meters using IHCM and 125.44 meters using Vissim where the traffic flow from the north direction has thegreatest value. The delay at the largest deviation from the north is 58.72 seconds using IHCM and 116seconds using Vissim. The second level of service value calculations show poor performance.

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