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Jurnal Spektran

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Published by Universitas Udayana

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Core Subject : Engineering,

Civil Engineering, Building, Construction & Architecture

Jurnal Spektran merupakan berkala ilmah online yang dikelola oleh Program Magister Teknik Sipil, Program Pascasarjana Universitas Udayana. Terbit pertama kali pada bulan Januari 2013 dan selanjutnya diterbitkan 2 kali setahun setiap bulan Januari dan Juli. Jurnal Spektran mempublikasikan hasil penelitian dan kajian dari mahasiswa, akademisi, praktisi dan pengamat masalah ketekniksipilan.

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Articles 10 Documents

Search results for , issue "Vol. 2, No.2, Juli 2014" : 10 Documents clear

ANALISIS PENGARUH PENDAPATAN TERHADAP KEPEMILIKAN MOBIL DAN SEPEDA MOTOR PADA RUMAH TAGGA DI SEPANJANG KORIDOR TRAYEK TRANS SARBAGITA I B. Wirahaji; D. M. Priyantha Wedagama; P. Alit Suthanaya
JURNAL SPEKTRAN Vol. 2, No.2, Juli 2014
Publisher : Master of Civil Engineering Program Study, Faculty of Engineering, Udayana University

Sarbagita region is currently facing problems such as traffic congestion roads. High private vehicle ownership has a direct impact on the community in using public transport. Secondary data are extensively used in this study are from selected households along the corridor in 4 (four) Trans Sarbagita service. The data used is household income, family composition (number of members, workers, and students), ownership of motor vehicles (the number of cars and motorcycles), trip purpose (work, school and shopping). Statistical Package for Social Science (SPSS) version 20 software is used to perform a multinomial logit regression. In addition, GDP and inflation for 5 (five) years in Denpasar and Badung regency which is used to estimate the household income during the next 20 years. Analysis shows that household income <Rp. 3 million have increased the probability of car ownership and car 1 ? 0 motorcycle. In 2017 and 2032, this income affect household vehicle ownership respectively 36.4% and 46.5%. Meanwhile, the influence of household income of Rp. 3-5 million increase for type 0 cars and motorcycles ? 0 and 1 ? 0 cars and motorcycles. In 2017 and 2032, household income affect the ownership of the vehicle amounted to 34.6% and 38.7%. In 2017 and 2032, household income affect the ownership of the vehicle from one car and motorcycle ? 0, respectively by 33.9% and 35.3%.

ANALISIS KEPUASAN KONSUMEN BETON READY MIX TERHADAP KUALITAS PELAYANAN PT. SARANA BETON PERKASA I Wayan Jawat; I N. Sutarja; Mayun Nadiasa
JURNAL SPEKTRAN Vol. 2, No.2, Juli 2014
Publisher : Master of Civil Engineering Program Study, Faculty of Engineering, Udayana University

The study about consumers satisfactions toward ready mix concrete company efforts becomes a central topic in construction in Bali. More over, each of ready mix company promotes its comittment consistency in quality and is product services. The aim of these study is to identify the factors which are influenced the services quality towards the consumer satisfaction of ready mix concrete and to know the consumers satisfactions towards services quality. This study used consumers satisfaction survey through sampling technique ( questionnaires distributions to 40 respondent ) by filling or marking the statements provided. To measure the consumers satisfaction toward the service quality, Importance – Perfomance Analysis was used. The aim is to measure the relation between consumer perseption and product/services quality improvement. The result of questionnaires data analyzes, could be concluded that the services quality was very important but the company didn’t do it maximal.The services included : the on time product delivery, the quick services for the consumers, the trust toward the quality, the consumers quality document, the readyness toward the consumers complaint. While, the services quality which were done well by the company, including : the staff took the mixture sample for the presure test, the staff did the slump test, the consumers got the information about the mixture quality, the slump test is based on the quality requirements, the pressure test is based on the the quality requirements, the concrete pump worked well, the mixer truck worked well, the volume of the mixture is based on the order, and the staff prepared and used the testing tool on the field.

ANALISIS BIAYA DAN PENANGANAN LOKASI RAWAN KECELAKAAN AKIBAT KECELAKAAN LALU LINTAS DI KOTA DENPASAR I.G.A Putri Adnya Swari; P. Alit Suthanaya; I.N. Widana Negara
JURNAL SPEKTRAN Vol. 2, No.2, Juli 2014
Publisher : Master of Civil Engineering Program Study, Faculty of Engineering, Udayana University

Denpasar city has a traffic accident rate is high compared to most other regions. Contributing factor is the traffic condition, which is an accumulation of traffic conditions the interaction of the various characteristics of driver, vehicle, road infrastructure and environmental characteristics. By that condition, it needs an effort to identify the black site, black spot, the cost of accidents and treatment efforts to reduce traffic accidents. The research has used secondary data from local police department as an accident data from 2007 until 2011 and survey’s data on the location. Of which data continue to be analyzed with the number of accident to find out the black site with Z-score method and to determine the black spot with cusum method. While the analysis of accident cost using the method of Gross Output (Human Capital). In restraining accident, a research should be done to identify causing accident factors. Based on analysis of black site obtained that the lines of the street in denpasar as an black site is on quadrant A, consisting of Ngurah Rai By pass line, Gatot Subroto and Imam Bonjol lines. The Cusum determination done to identify the location of black spot found on Ngurah Rai Bypass street Sta 8 - Sta 9 with cusum score 12,938.The cost of accident victims and accident costs were highest in 2011 in the amount of 36.988.633.141/year and 81.267.473.411/year. Recommendation from the research is that government should observe safety factors for the roadway users with put in traffic sign and the other safety facilities on research areas which has black spot.

ANALISIS KEAMANAN LERENG BENDUNGAN UTAMA PADA BENDUNGAN BENEL DI KABUPATEN JEMBRANA I G. N. Putu Dharmayasa; I W. Redana; Tjok Gde Suwarsa Putra
JURNAL SPEKTRAN Vol. 2, No.2, Juli 2014
Publisher : Master of Civil Engineering Program Study, Faculty of Engineering, Udayana University

Development of dam very important for community surrounding the dam. To maintain that the benefits can be continued, it is necessary to review whether the safety of dams already meet the expected requirements. Dam safety to be reviewed when the dam was built and when the dam operating at this time. Security conditions associated with changes in water level on the upstream dam that affects the seepage on the body of dam and seepage under the dam. The water level also affects the slope of the dam when the dam has been operating. Evaluation of the safety of the dam was conducted on Benel dam which located in Melaya District, Jembrana Regency, Bali Province. The results of the calculation of seepage (q) in the dam body with SEEP/W and flownet shows that, seepage discharge (q) which passes through under the dam and the body of dam is less than 1% (4.9206 m3/second) against the average flood discharge, so it has met the security requirements. Dam safety factor calculations without seismic load and with seismic load, for upstream slope and downstream slope when the dam was constructed, when operating with flood water level, when operating in the rainy season (normal water level), when operating in the dry season (minimum water level) and with rapid draw down condition, with SLOPE/W and the Bishop method, the safety factor obtained more than minimum requirement by RSNI M-03-2002.

ANALISIS PENILAIAN BANGUNAN RUMAH TINGGAL DI KOTA DENPASAR M. Mariada Rijasa; M. Sukrawa; Mayun Nadiasa
JURNAL SPEKTRAN Vol. 2, No.2, Juli 2014
Publisher : Master of Civil Engineering Program Study, Faculty of Engineering, Udayana University

Research on factors that affect the value of residential buildings in the city of Denpasar has been done consisting of literature review, interviews with experts, data collection and statistical analysis. Obtained from literature review were 45 factors which then grouped into four, namely: land characteristics, environment, location, and building characteristics. Survey on 27 valuation expert respondents was done to obtain their perceptions on the factors, and then their perceptions were measured with Likert scale. The data were then statistically tested to determine its validity and reliability, after which factor analysis was performed to obtain factors that truly valid within its group. To further evaluate the dominant factor in each group, two hundred data of previously assessed residential buildings were collected and analyzed using multiple linear regression. Results showed that group of factors that affect the value of residential building the most is location (7.723) followed by environment (3.843), building characteristics (3,741) and land characteristics (3.253). Downtown area, road width, building area, and land area are the factor of location, environment, building characteristics, and land characteristics, respectively, that dominantly showed positive effect within its group. SUTET transmission, poor road conditions, poor physical condition of the house, and the land at road end "tusuk sate" dominantly showed negative impact within its group.

ANALISIS KEPUASAN MASYARAKAT TERHADAP PELAYANAN BADAN PELAYANAN PERIJINAN TERPADU (BPPT) KABUPATEN BADUNG I G. A. Ketut Wira Sutha; I N. Arya Thanaya; I W. Yansen
JURNAL SPEKTRAN Vol. 2, No.2, Juli 2014
Publisher : Master of Civil Engineering Program Study, Faculty of Engineering, Udayana University

In order to give a more efficient and effective public service, the Badung government formed a Board for Integrated Permit Services (BPPT) as stipulated by the Local Government Regulation Number 4 / 2013 on 21 March 2013 which started its service on 1 May 2013. They used community’s satisfaction as a measure in order to give a good quality of services which is evaluated periodically. This study purposeful to know the community’s satisfaction level of BPPT services in order to know the effect of the five quality dimension of services which are tangibility, reliability, responsiveness, assurance and empathy. Quisioner method were use to collect data, which are contain 25 questions descriptivetly about the fact and realization of BPPT services regarding to the ninety six customers. And inferential analysis method were use to get conclusion about population based on behavior. The conclusion of descriptive analysis mention that the satisfaction level of community regarding to the overall of BPPT services is 66.98% value with category of “sufficiently satisfactory” where the most influential dimension of the community’s satisfaction was Empathy with the coefficient of 0.787 as shown in the regression equation Y = 15.133 + 0.630X1 + 0.463X2 + 0.659X3 + 0.602X4 + 0.787X5. The inferential analysis method mention that five dimension influence simultaneously dan partially to the community’s satisfaction. The suggestions that can be given from this study is to opptimalyzed the supporting facilities with providing a centre of communication which is usually called “call centre”, so easly for the community to get information and to propose critic and suggest regarding to the services.

MANAJEMEN RISIKO PADA PELAKSANAAN PROYEK KONSTRUKSI GEDUNG PEMERINTAH DI KOTA DILI – TIMOR LESTE Octavio P.M Marques; I M. Alit K. Salain; I W. Yansen
JURNAL SPEKTRAN Vol. 2, No.2, Juli 2014
Publisher : Master of Civil Engineering Program Study, Faculty of Engineering, Udayana University

Building project as one of the construction services are filled with varying risks during the construction phase of the project implementation. At the stage of the project implementation, risks may arise either the risk of time, cost and those which affect the quality of the project. Therefore, we need to understand the risks at the construction phase and mitigation to the risks to meet in execution of project based on initial planning. The study was conducted to identify the risks in the implementation of construction projects of government buildings by using survey methods that aim to get the opinion of the respondents regarding the risks at implementation of the government building construction projects in the city of Dili - Timor Leste. Further, it was done a risk assessment to determine the major or main risks. Major risk is controlled through mitigation measures and allocation of risks to the parties directly involved in construction projects such as Project Owner, Technical Supervisor, Consultant Design, Consultant Supervision and Contractor. The analysis used in this study is a qualitative analysis. The results showed 64 risks identified in the implementation of construction projects there are 10 government buildings risks (16%) with an unacceptable category, 18 risks (28%) with the undesirable category, 28 risks (44%) with acceptable category and 8 risks (12%) with negligible category. Ownership of major / main risk to the parties directly involved in the implementation of construction projects such as the project owner, technical supervisor, consultant design, consultant supervision and contractors. The project Owner and Technical Supervision (Department of Public Works) is expected to further enhance the ability to manage projects so not throwing responsibility in managing government projects. consultant design and sonsultant supervision to be more careful in design till supervision during the implementation period so as to meet the cost, quality and time planned. Contractors are expected to further improve the performance of the building construction project.

PARTISIPASI MASYARAKAT SEKITAR DANAU BERATAN DALAM KONSERVASI SUMBER DAYA AIR A.A. S. Dewi Rahadiani; I G.B. Sila Dharma; I N. Norken
JURNAL SPEKTRAN Vol. 2, No.2, Juli 2014
Publisher : Master of Civil Engineering Program Study, Faculty of Engineering, Udayana University

Lakes are one of the surface water resources in Bali Island which supports the socio-economic activities of the community. The growing economic activities either in the tourism or agricultural sector have their effects on the emergence of various problems such as the environmental pollution, shallowness of lakes and erosions. The emergence of various pollutions and the decreased functions of the Lake Beratan is not separable from the intervention of the community living surrounding the lake so that the conservation efforts need the community participation living surrounding the lake. This is based on the idea that the success of the conservation of water resources does not only depend upon the government but the involvement of the community also becomes a key factor. This study aims to identify and analyze the participation of the community living surrounding the Lake Beratan in the conservation of water resources. The number of samples used in this study was 98 respondents gathered by means of purposive sampling in the village of Kembangmerta, the village of Candikuning I and Candikuning II which are located close to the area of Lake Beratan and the majority of the people there use the lake water for daily needs. The community participation is divided into two categories, less participations and good participations, calculated based on Likert scale while the effect of free variables such as age (X1), education (X2), income (X3), length of living (X4), and perception (X5) on bond variables were calculated using discriminating analysis. The result of the study shows that the community participation surrounding Beratan Lake in conserving water resources had been good. The differentiating variables were the age of the respondents and their incomes.

KERAWANAN LONGSOR LERENG JALAN STUDI KASUS RUAS JALAN SUKASADA – CANDI KUNING Ririn Hartini; I W. Redana; I.G.N. Wardana
JURNAL SPEKTRAN Vol. 2, No.2, Juli 2014
Publisher : Master of Civil Engineering Program Study, Faculty of Engineering, Udayana University

Slope stability analysis along roads Denpasar – Singaraja have been calculated using Felenius Method and Software Plaxis 8.2. This calculation was conducted using material model Mohr - Columb, soil cohesion (c) and tan f soil parameters. Calculations safety factor using phi – c reduction value, condition until structural failure occurs. The results of computation Felenius Method give stability value Fs < 1.5 which mean landslide would be accurred in this slope. Calculation using Plaxis 8.2 produce Fs > 1,5. This study has been on optimization of soil parameters, so that plaxis gives better result. This study may conclude that plaxis should be used with caution and with proper soil parameters

MODEL BIAYA TIDAK LANGSUNG PROYEK STRUKTUR GEDUNG BETON BERTULANG I Ketut Nudja S; I N. Sutarja; Mayun Nadiasa
JURNAL SPEKTRAN Vol. 2, No.2, Juli 2014
Publisher : Master of Civil Engineering Program Study, Faculty of Engineering, Udayana University

The cost of the project itself , in line with the accounting system which consists of direct costs and indirect costs . Contractor in determining competitive bidding strategy, should propose a cost which include estimate real cost plus mark up . Based on observations at PT. Sarana Bangun Ragam Cipta, a contractor company , found that the company does not follow the rules mentioned above, Besides that the book keeping system for the project cost has not implemented a financial accounting system properly , so that the proportion of direct costs and indirect costs of each project is un know. It required a study to be conducted to determine the proportion of direct costs to indirect costs and indirect cost model. Quantitative research was conducted on the 12 (twelve ) project of reinforced concrete building structures using two (2 ) independent variables , namely the direct costs ( X1 ) and duration ( X2 ) and 1 ( one ) dependent variable , ie indirect costs (? ) . Descriptive analysis to determine the proportion of indirect costs to direct costs . Analysis of data using multiple linear regression analysis to determine the indirect cost model of reinforced concrete building structures projects. From analysis found the average proportion of indirect costs to direct cost was 8.50 % , meanwhile indirect cost model is ? = - 1.462E7 + 0.056 ( X1 ) + 558,775.937 ( X2 ) , where : ? = Indirect costs ( Rp . ) , X1 = direct costs (Rp .) , X2 = Duration ( days ) . The proportion of indirect costs can be used to calculate indirect costs = 0.085 x direct costs and the above model can also be used to predict the value of ? with accuracy 90% or at ? (±) 0.10, if the values ??of X1 and X2 is know on popolation where the data is taken

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