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Journal of the Civil Engineering Forum

jcef
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Published by Universitas Gadjah Mada

ISSN : 25811037 EISSN : 25495925 DOI : -

Core Subject : Social, Engineering,

Civil Engineering, Building, Construction & Architecture Environmental Science

Journal of the Civil Engineering Forum (JCEF) is a four-monthly journal on Civil Engineering and Environmental related sciences. The journal was established in 1992 as Forum Teknik Sipil, a six-monthly journal published in Bahasa Indonesia, where the first publication was issued as Volume I/1 - January 1992 under the name of Forum Teknik Sipil.

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Articles 6 Documents

Search results for , issue "Vol. 2 No. 2 (May 2016)" : 6 Documents clear

Performance Analysis of Foreign Loans in Directorate General of Highways Ministry of Public Works Yunik Eva Sarlina
Journal of the Civil Engineering Forum Vol. 2 No. 2 (May 2016)
Publisher : Department of Civil and Environmental Engineering, Faculty of Engineering, UGM

Provision of road infrastructure does, efficiently and effectively, have an effect on economy increase in a region. The limited ability of the government in the provision of funding for the road infrastructure requires the handling on the organizers of the roads, it also needs efforts to look for funding resources outside the APBN as a resource of funds for foreign loans. This study aims to know the process of foreign loans, the characteristics of each foreign loan, and the loan implementation performance in Directorate General of Highways, Ministry of Public Works. The research was using the qualitative descriptive methods focusing on thorough depiction of form, function, and meaning of prohibition; data collection was done by collecting the entire loan process from the preparation phase to the implementation phase through interviewing and documentation literature. The document consists of the loan agreement document, documents monthly reports and annual reports, lender regulations, legal regulations of the Republic of Indonesia, photo documentation and archives. The result showed that the scoring of performance, multilateral loan is better than bilateral loan. This is evidenced by higher score for multilateral loan than bilateral loan. Particularly in terms of regulations, the multilateral loan having score 15, it was because the lender adjusts by existing regulations in Indonesia, while bilateral loan having score 13. Furthermore, from the aspect of financial benefits, bilateral loan have score of 41 and is more advantageous than the multilateral loan which score is 29.

Analysis on Railway Infrastructure Utilization Priority Factor Variation on Track Access Charges (TAC) Sekar Mayang; Imam Muthohar
Journal of the Civil Engineering Forum Vol. 2 No. 2 (May 2016)
Publisher : Department of Civil and Environmental Engineering, Faculty of Engineering, UGM

In Presidential Decree Republic of Indonesia Numb. 53 in 2012, it is explained that every railway operator which use railways infrastructure have to pay Track Access Charges (TAC) to Government. The rules of the calculation of TAC which have to be paid by PT.KAI is explained in Regulation of Transport Minister Numb. 62 in 2013. In this regulation, there is priority factor which has same value for every service type of the train (Fp=1). Actually, every service type of railway has different priority and gives different damages for infrastructure based on the speed. This research intended for analyzing the influence of priority factor to TAC. Quantitative description method is used in this research. The objects of the research are Executive, Business, and Economic class of passenger train in Java. It suggested with two alternatives calculation of TAC with variations in priority factor (Fp) which oriented on train travel time. Then, the best Fp is chosen which represented the real condition where the train with higher priority has to pay higher TAC than that of others. The result of this research, with Fp=1, showed the value of TAC for Economic class is IDR 68.00/GT/km, for Executive class is IDR 30.00/GT/km, while for Business class is IDR 28.00/GT/km. A modified of Fp, with two alternatives calculation, considering travel time and stay time of each railway service type showed a better result. The first alternative generates Fp= 1.39 for Executive class and gives IDR 42.00/GT/km for the average TAC, while Fp=1.21 for Business class and generates IDR 34.00/GT/km for average TAC. The second alternative generates Fp=3.00 for Executive class and it gives IDR 91.00/GT/km while for Business class generates Fp=2.00 and it gives IDR 56.00/GT/km. The calculation of TAC with second alternative is more represents the real condition, where Executive class has higher priority and speed than the other classes, so it also has to pay higher TAC.

Meteorological Drought Assessment in Wonogiri District Karlina Karlina
Journal of the Civil Engineering Forum Vol. 2 No. 2 (May 2016)
Publisher : Department of Civil and Environmental Engineering, Faculty of Engineering, UGM

Drought is one of natural disaster occurrences that affect many life aspects such as agricultural and economy. Drought is one of hazard that affected by extreme condition due to climate change. Wonogiri is one of districts in Indonesia that has a high risk of meteorological drought. This area tends to have less rainfall than other areas that make the condition drier. This study is aimed to provide some information required in determining the drought disaster mitigation through analysis of the drought characteristics, for both historical and future condition. For the historical condition analysis, the input is 12 years of daily rainfall recorded data from 1990 to 2001 in 15 rain gauges. In case of the future assessment, the meteorological drought was analyzed by using Effective Drought Index (EDI) and Standardized Precipitation Index (SPI) methods. Input data for the future assessment is 90 years of daily rainfall which was generated by using climate model HadCM3 scenario A2 and B2. The future data prediction was done by using Automated Statistical Downscaling software. Statistical criteria i.e. Root Mean Square Error (RMSE), regression coefficient and standard deviation were used for testing the model accuracy. The drought coefficient obtained from the analysis using EDI and SPI then was applied to draw drought risk map using GIS software in Wonogiri District for historical and future condition. The results show that for the historical condition, the most severe drought occurred in 1997-1998. This extreme condition related to ENSO phenomenon that happened in this area. Compared with the historical condition, the number of future drought event in 2080 period is less than the historical one. This result agree with the rainfall prediction. The generated rainfall for both scenarios are increase from existing period to 2080’s.

Identification of National Road Maintenance Needs Based on Strategic Plan of Directorate General of Bina Marga (2015-2019) Rizky Ardhiarini
Journal of the Civil Engineering Forum Vol. 2 No. 2 (May 2016)
Publisher : Department of Civil and Environmental Engineering, Faculty of Engineering, UGM

The enhancement of connectivity between the main corridors of the economy in South Sumatera, as a purpose of the Strategic Plan of Directorate General Bina Marga and also an objective of MP3EI, Master Plan for Acceleration and expansion of Indonesia's Economic Development which is an ambitious plan by the Indonesian government to accelerate the realization of becoming a developed country would be able to achieve on the requirement of good condition on performance and pavement. In order to support the optimal condition of the road, the identification of road management was conducted to determine the necessity of road maintenance based on technical conditions and importance level of development of the road traversed. The management program proposed is expected to be used as a baseline in determining the maintenance of the road network in South Sumatera from 2015 until 2019. This research used Multi-criteria Analysis (MCA) method, which consists of: (1) road network performance, covering width of roadways, traffic flow, V/C ratio, travel speed and travel time of the vehicle, and (2) pavement condition, with IRI, SDI, and the proportion of good pavement condition as a parameter. Multi-criteria analysis used combined road condition assessment score and importance level of development of the area traversed by. This analysis was conducted from 2015 until 2019. The research concluded that maintenance necessity in 2015 were dominated by routine maintenance (95.86% of the total length), then in 2016 until 2019 the needs were dominated by routine maintenance (near 100% of the total length). As the maintenance applied, a vast amount of total road length fulfilled as an achievement target. The results are follows: (a) 100% with width of roadways ≥ 7 meter, (b) 97.83% with V/C ratio < 0.75, (c) 18.50% with travel speed > 60km/hour, (d) 17.32% with travel time (TT) < 1.6 jam/100km, (e) 100% with good pavement condition > 95%, (f) 90.37% with IRI < 4 m/Km, and (g) 91.59 with SDI < 50. Yet with the achievement of 100% of total road length with a minimum width 7.0 meter, and 90.37% of total road length with an IRI less than 4.0 m/km in 2019, the impact was not significant on increasing length of the road with a travel time (TT) less than 1.6 jam/100km. The condition is caused by there are no maintenance requirements concerning the improvement of the substandard road geometric.

Response of Fuel Subsidy Removal as Sustainable Transport Policy (Case Study: Workers in Jakarta Metropolitan Area) Octaviani Ariyanti; Samuel Petros Sebhatu
Journal of the Civil Engineering Forum Vol. 2 No. 2 (May 2016)
Publisher : Department of Civil and Environmental Engineering, Faculty of Engineering, UGM

Motorization in urban areas contributes several problems such as congestion, accidents, gas emissions, noises, and infrastructure breakage. Meanwhile, most of the developing countries cannot overcome such growth activities, as well as in Jakarta. By December 2013, Vice Governor of Jakarta proposes fuel subsidy removal policy as one of sustainable transport policy. This study is intended to understand and investigate how fuel subsidy removal policy scenarios (25%, 50%, and 100%) in Jakarta affects travelers’ behavior and analyze such policy to support sustainable transport by using qualitative research methodology. Interviews and questionnaires survey is conducted to workers in Jakarta, which includes ranking scale question for traveler response options. The result shows that half of the respondents are not affected and will only respond to fuel price increasing at IDR 31,400 for gasoline price and IDR 26,300 for ADO (Auto Diesel Oil). Moreover, there is a tendency of respondent's to the response by changing their travel mode choices into more fuel efficient private vehicle.

Repairing and Retrofitting of Earthquake-Affected Exterior Beam-Column Connection by Using Resin Concrete Rifqi Anra Wijaya; Ashar Saputra
Journal of the Civil Engineering Forum Vol. 2 No. 2 (May 2016)
Publisher : Department of Civil and Environmental Engineering, Faculty of Engineering, UGM

Reinforced concrete structures may suffer a failure that caused by natural events such as earthquake. If the damaged building still can be used, then a repair (retrofitting) on the damaged section is highly necessary. Retrofitting materials that can be used is the polymer concrete. The purpose of this study was to determine the behavior of beam-column connections after repair (retrofitting) using polymer concrete. Test sample in the form of exterior beam-column connection with cross-sectional size of the column 30 x 30 cm, length of 3.5 m and the size of the beam cross-section of 17 x 30 cm, length 1.8 m, consists of 3 pieces. Experiment test method was based on ACI T1.1-01. All samples were tested in two stages, the first stage of the test until targeted damaged level which controlled by crack width of 0.4 mm. Furthermore, the test object repaired using normal concrete (BKN- 1N) and polymer concrete (BKN-2R and BKN-3R). The second phase of test is done to collapse. Lateral force, deflection, and strain and crack pattern are observed. The data were processed to obtain the load-deflection relationship curve, stiffness, ductility ratio, energy dissipation and model of collapse. Beam-column joint behavior is compared with the acceptance criteria (ACI T1.1-01) to determine whether in accordance with the criteria required. Test results showed the value of the maximum lateral load test object BKN-1N, BKN-2R and BKN-3R,consecutively were 39.2 kN; 43.77 kN and 46.24 kN in the direction of curvature response (+) and the direction of curvature response (-), respectively for 59.1 kN; 62.73 kN and 69.91 kN. BKN-2R test objects have a greater ductility factor of 24.1% in the direction of curvature response (+) when compared with the test object BKN-1N. At the direction of curvature response (-), BKN-2R sample has a greater ductility 39.3% of the sample BKN-1N. Based on ACI T1.1-01, all samples have the response modification factor of 8. From SAP2000 modeling, BKN-1N, BKN-2R, and BKN-3R consecutively showed ability to withstand earthquake forces 3.36 times greater; 3.77 times; and 3.97 times greater than the earthquake forces are designed based on SNI 1726:2012. An advantage of using a resin concrete repair materials is very fast drying time.

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