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INDONESIA
Jurnal Ilmiah Teknik Sipil
Published by Universitas Udayana
ISSN : 14111292     EISSN : 25415484     DOI : -
Core Subject : Engineering,
Civil Engineering, Building, Construction & Architecture
Jurnal Ilmiah Teknik Sipil (p-ISSN: 1411-1292; e-ISSN: 2541-5484) is an online periodical journal of science that is published twice a year, in January and July by Civil Engineering Department, Faculty of Engineering, Udayana University. Jurnal Ilmiah Teknik Sipil is a media to publish the results of scientific research students, academics, practitioners and observers in the field of civil engineering including structure, construction management, water resource management, transportation, geotechnical and environmental engineering.
Arjuna Subject : -
Articles 11 Documents
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Search results for , issue "Vol. 15, No. 1 Januari 2011" : 11 Documents clear
EVALUASI INVESTASI PEMBANGUNAN TAMAN SAFARI DI KABUPATEN GIANYAR Mayun Nadiasa; Maha Diana; Sukada Wenten
Jurnal Ilmiah Teknik Sipil Vol. 15, No. 1 Januari 2011
Publisher : Department of Civil Engineering, Udayana University

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Abstract

Evaluation is an assessment of an object; in this case it is the nationalattractions, ranging from operations to current conditions. The evaluation aims todetermine how far the tourist object proceeds financially, so there should bemonitoring of costs and revenues. The object of this study is the Safari Park whichis initiated by PT. Taman Safari Indonesia and has been operationalized partly. Thepurpose of this evaluation is to determine the investment condition of Safari Parkdevelopment which is located on Bypass road of Prof. Dr. Ida Bagus Mantra. Theinvestment parameters are the Net Present Value (NPV) and Benefit Cost Ratio(BCR). Financial values used in the study is based on incurred costs and currentlyoperational costs, while profits are projected based on the number of tourists arrivalfrom opening until now using the linear regression method. The number of touristarrivals showed an increase in visits since opening until now. This evaluationresults in Net Present Value (NPV) of Rp102.220.288.002, 35 and the Benefit CostRatio (BCR) value of 2.254. The results of sensitivity analysis with the possibilityof all components of revenue decreased by 10% and costs increased by 10% gaveNPV of Rp49.162.950.085, 32 and BCR value of 1.600, so this investment isconcluded feasible.
KARAKTERISTIK BATU BATA TANPA PEMBAKARAN TERBUAT DARI ABU SEKAM PADI DAN SERBUK BATU TABAS I Ketut Sudarsana; Ida Ayu Made Budiwati; Yohanes Angga Wijaya
Jurnal Ilmiah Teknik Sipil Vol. 15, No. 1 Januari 2011
Publisher : Department of Civil Engineering, Udayana University

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Abstract

This research was conducted to determine the characteristics of the brick compressive strength and water absorption. The bricks are made by using waste rice husk ash and rock-tabas powder which are added to cement as a glue and mixed with clay and they are left dry without firing. A total of five kinds of mixtures were made with a proportion of total rice husk ash and rock-tabas powder of 30%, 60% of clay and cement as much as 10% mixed with weight ratio. Variations of composition of rice husk ash and rock-tabas powder were made using ratios of 0%: 30%, 7.5%: 22.5%; 15%: 15%, 22.5%: 7.5%, and 30%: 0 %. The samples used are in the form of cubes with a size of 6x6x6 cm. Six-cubes were made form each mixture where 3 of them were used for compressive strength test and the other 3 for water absorption test. Tests conducted at 14 and 28 days. The result showed that the highest compressive strength of bricks without firing was 22.90 kg/cm2 obtained from the mixture I with the percentage of rice husk ash and pulverized tabas of 30%:0% at 28 days, while the lowest water absorption is at 44.03% gained from bricks of mixture V in which the ratio between rice husk ash and rock-tabas powder was 0%:30% at 28 days.
VARIASI AGREGAT PIPIH SEBAGAI AGREGAT KASAR TERHADAP KARAKTERISTIK LAPISAN ASPAL BETON (LASTON) I Made Agus Ariawan
Jurnal Ilmiah Teknik Sipil Vol. 15, No. 1 Januari 2011
Publisher : Department of Civil Engineering, Udayana University

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Abstract

Laston is a mixture of continuously graded aggregates and asphalt as abinder. Based on its form, the used aggregate is classified as spherical, cube, oval,flaky and irregular. A flaky aggregate is unfavorable to be used as Lastoningredient, because it is broken easily that could affect gradation of aggregate andthe interlocking is weak. Therefore, the Determination of Flekiness indexs BS.812limits aggregate index flaky in the Laston for a maximum of 25%. Research iscarried out to study how the effect of flaky aggregate as coarse aggregate on thecharacteristic of Laston mixture where the Flaky Aggregate used are varied namely0%, 15%, 20%, 25%, 30%, 35% of the total aggregate. By using 6.25% of KAO,the characteristics of the Laston are as follows. Decreases in the value of stabilityfrom 1144 kg to 1096.9 kg, the value of MQ from 313.21 kg/mm to 150.52 kg/mm,the value of VMA from 16.48% to 13.68%, and the value of VIM from 5.90% to2.73%, increases in the flow from 3.65 mm to 7.21 mm, and the value of VFB from64.2% to 80.1% are obtained. Based on regression and correlation analyses, theaddition of flaky aggregate strongly affects the value of the Laston characteristic.The correlation values (r) of each characteristic are greater than 0.97. Based on theanalysis of variance, the value of F count for each Laston characteristic is greaterthan F table of 3.11 with an error rate ( ) of 5%, the degree of freedom treatment v1 = 5 and degrees of freedom random v2 = 12. This proves that by varying thelevel of flaky aggregate makes the difference in the values of the Laston mixturecharacteristics.
PENGARUH PERUBAHAN MUKA AIR TANAH DAN TERASERING TERHADAP PERUBAHAN KESTABILAN LERENG I G. N. Wardana
Jurnal Ilmiah Teknik Sipil Vol. 15, No. 1 Januari 2011
Publisher : Department of Civil Engineering, Udayana University

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Abstract

Drenched rain soil is a cause in reduction of the soil strength in line withincreasing ground saturation. Reduction of this strength reduces the slope stabilitywhich can cause sliding during the rainy season. Research was conducted bycarrying out simulations on slopes using a Stable 2004 Program on different slopegeometries, number of terraces and soil properties. The effects of drenched rain soilwere simulated by changing ground water levels. The effects of slope geometriesincluding inclination and height of slopes and earthquake loads were considered inthe analyses. To ease the analyses, the terraces were grouped into 4 which were T1,T2, T3, and T4 having 1, 2, 3 and 4 terraces respectively. The slope without terraceis referred as T0, the slope inclination changed from 1:1 to 1:2 and 1:3 withdifferent type of soils (clay, sand and variation of clay-sand). The analysis resultsshowed that the increase in ground water level resulted in the reduction of slopestability for the slope of 1:1, 1:2, and 1:3, the safety factors increased withincreasing number of terraces and the highest was thus in T4. For Sandy slope of1:1 with T1 terrace, the increase in safety factor was noticeable, while for T2, T3,and T4 types they were almost the same. Sandy slopes of 1:2 and 1:3 with terraceschanging from T1 to T4 causes the average safety factor increase in slightly. Clayslope with earthquake loads of 0.25 g and 0.45 g gave the average reduction insafety factor of 43% and 55% respectively. The earthquake loads of 0.25 g and 0.45 g caused reductions on safety factors of sandy slopes by 50% and 70%respectively.
STUDI PENENTUAN NILAI MARKUP MINIMUM SEBAGAI STRATEGI UNTUK MEMENANGKAN PENAWARAN PROYEK KOSNTRUKSI DENGAN MODEL FAIR AND REASONABLE MARKUP (FARM) Dewa Ketut Sudarsana; Putu Dharma Warsika; I G. N. Jaya Surya Dharma
Jurnal Ilmiah Teknik Sipil Vol. 15, No. 1 Januari 2011
Publisher : Department of Civil Engineering, Udayana University

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Abstract

The rapidly growing in the development of construction project inIndonesia has brought a very powerful impact in the construction business. Therise of the development of construction business has led to tight competition forcontractors to win the tender. A model of Fair and Reasonable Markup (FARM) byFarid and Boyer in 1985 is used to determine the smallest markup value /minimum bid price that used by contractors to meet the return on investment /capital which is expected in the project. By using FARM models, contractors areexpected to determine a price that is competitive, but it still can generate sufficientprofits for the contractors as bidders. The study results in markup values rangingfrom 1.58% to 1.69% and the rate of return on investment expected by thecontractor is about 20% per year.
MANAJEMEN RISIKO PENANGANAN BANJIR PADA SISTEM JARINGAN DRAINASE DI WILAYAH KOTA DENPASAR Ida Bagus Ngr Purbawijaya
Jurnal Ilmiah Teknik Sipil Vol. 15, No. 1 Januari 2011
Publisher : Department of Civil Engineering, Udayana University

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Abstract

Recently, the infrastructure condition of drainage network system inDenpasar cannot overcome flood problem which happens every rainy season.This problem has been resulted due to lack of drainage network systemmanagement related to the increasing in housing area development, the changingof land use, and other activities which cause risk of flood. One of the causes, i.e.risk identification especially for major risks has not yet been available as a baseto undertake mitigation of consequences. Therefore, there is a need to conduct astudy on drainage network system, in order to control the risks that are likelyoccurred and particularly has widely affected to the aspect of planning,development, operational and maintenance. This research identified 91 risks,including 13 risks found from previous study. The distribution of risk acceptance for planning, operational and maintenance of flood mitigation in Denpasar isclassified as unacceptable risk by 27 (29,67%); undesirable risks by 26 (28,57%);acceptable risks by 35 (38,46%); and negligible risks by 3 (3,30%). Riskmitigation is only conducted for dominant risks that are categorized asunacceptable and undesirable risks. There are 27 of risk mitigation conducted forunacceptable risks, that covers 10 (37,04%) of planning risks, 4 (14,81%) ofexecution risks and 13 (48,15%) of maintenance and operasional risks. Riskmitigation for undesirable categories consist of 26 risks; these are 10 (38,46%) ofplanning risks, 7 (26,92%) execution risks and 9 (34,62%) of operasional andmaintenance risks. Subsequently, management of risk ownership is addressed tothe parties that involved in flood mitigation in Denpasar.
PENJADWALAN PROYEK DENGAN PRECEDENCE DIAGRAM METHOD (PDM) DAN RANKED POSITION WEIGHT METHOD (RPWM) I Gusti Ngurah Oka Suputra
Jurnal Ilmiah Teknik Sipil Vol. 15, No. 1 Januari 2011
Publisher : Department of Civil Engineering, Udayana University

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Abstract

In project construction world, many models of project planning havebeen intensively used, such as a Precedence Diagram Method (PDM). Schedulingon PDM considers dependency between activity and duration of each activity. Todeal with the limited resources, hence allocation and resources levelling need to beimplemented using Resource Scheduling Method. Activity scheduling priority isbased on activities with the minimum floating time. If some activities have thesame floating time, a problem arises in determining the priority of schedulingactivity. In the Ranked Position Weight Method (RPWM), allocation and resourceslevelling are based on positional weight of each activity. Positional weight isdetermined by adding the sum of duration of an activity with the sum of a totalduration of all following activities. The value of positional weight of an activityshows a degree of its importance in relation to other activities. The effects of theconstruction work condition on the project activity should be considered whenpreparing precedence logic (relationship of interdependency activities).
ANALISIS KINERJA SIMPANG BERSINYAL (Studi Kasus Jalan Teuku Umar Barat – Jalan Gunung Salak) A.A.N.A. Jaya Wikrama
Jurnal Ilmiah Teknik Sipil Vol. 15, No. 1 Januari 2011
Publisher : Department of Civil Engineering, Udayana University

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Abstract

Intersection between Western Teuku Umar and Gunung Salak Roadswhich is located in Western Denpasar District has a high traffic volume. Thisintersection functions as a gateway connecting Denpasar City and Badung Region.The problems of the intersection are long delay and frequent accident. Theobjectives of this study are to evaluate the existing intersection performance and toanalyze several alternative solutions. There were 3 alternatives improvementapplied, i.e. First, signal re-setting with multi program; Second, combination ofgeometric re-design and signal re-setting and Third, combination of signal resettingand south traffic flow diversion. Delay was used as the intersectionperformance indicator. It was found that the second alternative as the best solution.
ANALISIS KINERJA RUAS JALAN AKIBAT BANGKITAN PERGERAKAN DI PASAR PANDAK GEDE Nyoman Karnata Mataram
Jurnal Ilmiah Teknik Sipil Vol. 15, No. 1 Januari 2011
Publisher : Department of Civil Engineering, Udayana University

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Abstract

The rapid development in a region is normally followed by the increasein movement occurred in that region. In Kediri district of Tabanan, the marketactivity has increased trip generation that leads on the traffic conflict. The presenceof Pandak Gede Market has caused traffic problems including road performanceimpairment caused by on street parking, loading and unloading of goods, the streetvendors and pedestrian activity entering and exiting the market. The data used inthis study are primary and secondary data. The primary data included trafficvolume, market trip generation, road inventory, speed, and side friction. Thesecondary data are obtained from Tabanan Central Statistics Agency (BPS)consisting, Tabanan city population and the number of vehicle ownership. Roadperformance analysis is based on the Indonesian Highway Capacity Manual(IHCM) in 1997. In addition the growth factor model is used to predict the roadperformance for the next 10 years.
PRIORITAS PROGRAM TERMINAL KAPAL PESIAR TANAH AMPO: SUATU PENERAPAN BENEFIT-COST ANALYSIS (BCA) UNTUK PENILAIAN PROYEK Made Arnatha; Nyoman Budiartha R.M
Jurnal Ilmiah Teknik Sipil Vol. 15, No. 1 Januari 2011
Publisher : Department of Civil Engineering, Udayana University

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Abstract

Benefit Cost Analysis (BCA) is the standard method used to aid agencies in project selection and prioritization, by measuring the efficiency costs from the perspective of the benefits for society that identifies optimum ratio of cost-benefit, usually by comparing the income of project beneficiaries. BCA is a computational tool to determine whether an investment will generate benefits that will exceed its costs. In the port industry, it is usually fragmented, BCA model raises the cost or benefit allocation problem that causes a variety of conceptual questions concerning the actual of cost or benefit in development and investment program. This study focuses on literature review of Benefit Cost Analysis (BCA) including port development feasibility study report on tourism in Tanah Ampo by the transport department of the Karangasem Regency Government in collaboration with the Research Institute (Research Center) University of Udayana and tourism port master plan study (RIP) in the Land ampo-Bali by the Directorate General of Sea Transportation in collaboration with the Research Institute (Research Center), University of Udayana, including: (a) a description of the maritime industry characteristics affecting the program plan, (b) requirements for program implementation, (c) methodology developed to evaluate projects, (d) review and evaluation of improvement.

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