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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 239 Documents

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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 KARAKTERISTIK HUNIAN UNTUK PASANGAN MUDA DI KOTA SURABAYA Nyoman Martha Jaya; GAP. Candra Dharmayanti; Radhika Kharisma
JURNAL SPEKTRAN Vol 6 No 1 (2018): Vol. 6, No. 1, Januari 2018
Publisher : Master of Civil Engineering Program Study, Faculty of Engineering, Udayana University

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Surabaya as the second largest metropolitan city in Indonesia after Jakarta has a population of 2,864,471 people.High Economic growth and business in the city of Surabaya have an influence on the demand for housing and land so that property prices in the Surabaya area increased 25-30 percent annually. Young couples who just got married at a relatively young age and have not been classified as a well-established couple need place to stay, but problemscan arise if they expect a proper residence in the city of Surabaya. This study aims to determine the priority of factors that affect young couples in choosing a residence, so that they have to knowthe concept of residence expected by a young couple in the cityof Surabaya. Based on the literature, factors identified include: building area, land area, accessibility, physical and environmental criteria, facilities and residential services, home price, type of work, and the amount of income.This study used a survey method using questionnaires distributed to 30 respondents with expert criteria,i.e. those who have been experienced or skilled in the area. Preference measurement is done by pair-wise comparisonsof factors that affectyoung couple choosing residential follows the rating principle of Saaty (1986). Data analysis methods used Analytic Hierarchy Process (AHP) and Fuzzy Analytic Hierarchy Process (FAHP)to obtain the priority factors influencing young couple in the city of Surabayafor choosing the residence.The results showed that the concept of residence expected by young couple in the city of Surabaya is influenced by factors such as the following, which are ranked from the most dominant by weight: land area factors(21.7%),accessibility factors (18.8%), physical characteristic and residential environmental factors(17.6%), facility and residential service (13.5%),factor in home prices (8.9%), factor of building area (8.8%), factors of income level (7.0%), factor of the type ofwork(3,7 %). Keywords : AHP, FAHP, residential characteristic factors, young couples

STUDI KARAKTERISTIK BATA MERAH LOKAL BALI SEBAGAI DINDING Ni Nyoman Rita Rahayu; I. A. M Budiwati; M. Sukrawa
JURNAL SPEKTRAN Vol 4 No 1 (2016): Vol. 4, No. 1, Januari 2016
Publisher : Master of Civil Engineering Program Study, Faculty of Engineering, Udayana University

Abstract : This study was conducted to determine the characteristics of brick red walls. Red brick taken from a local brick manufacturer Gianyar, Tabanan and Negara refer to SNI 15-0686-1989. By using mortar 1: 4, 1: 5, 1: 6, 1: 7 and 1: 8, according to the rules SK SNI M-111-1990-03. Testing red brick wall refers to the standards set in SNI 03-4164-1996. The data measured in this study is the compressive strength, modulus of elasticity and flexural strength. Modulus of elasticity of the wall pair by way of experiment calculated using the equation defined BSEN 1052-1-1999 Brick walls Gianyar, Tabanan of mortar 1: 4 consecutive compressive strength characteristics are 1.22, 1.32 and 1.42 N / mm ². Based on the results obtained in the testing of masonry walls with mortar 1: 4 with the value of the average compressive strength of 11.13 N / mm ² are classified as class mortar (i) according to standard BS 5628-1-1992 characteristic compressive strength for all wall below the chart value pairs are characteristic compressive strength of masonry that is equal to 2.5 N / mm ². Average modulus of elasticity of masonry walls Gianyar of mortar 1: 4, 1: 5, 1: 6, 1: 7 and 1: 8, according to the equation obtained 1052-1-1999 BSEN 240, 191, 171, 156 and 154 N / mm ², masonry walls Tabanan of mortar 1: 7 and 1: 8 obtained elastic modulus of 356 and 344 N / mm ², masonry walls Negara of mortar 1: 7 and 1: 8 obtained elastic modulus of 363 and 348 N / mm ². When compared three types of masonry is based on the elastic modulus and compressive strength, then the resulting brick wall of Negara has the greatest value for the various types of mortar, followed by a later brick wall brick wall Tabanan, Gianyar. Flexural strength values ??by using the equations listed in SNI 03-4165-1996, for gianyar masonry walls with mortar 1: 4, 1: 5, 1: 6, respectively are 0.005, 0.004 , 0.004 N/mm2, brick Tabanan 0.009, 0.007, 0.005 0.009 N/mm2 and brick Negara, 0.008, 0.006 N/mm2. Testing by means of BS EN 1052-2-1999 be reviewed only for 1:4 mortar masonry walls flexural strength values ??produced an average of 0.0045 MPa, this value is very close to the value obtained from way SNI 03-4165-1996 is equal to 0.005 MPa.

DESAIN PONDASI TIANG RAKIT DENGAN METODE POULOS DAN SOFTWARE PLAXIS I Nyoman Sutarja; I Wayan Redana; I Made Putra Dwityagana
JURNAL SPEKTRAN Vol 7 No 1 (2019): Vol. 7, No.1, Januari 2019
Publisher : Master of Civil Engineering Program Study, Faculty of Engineering, Udayana University

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DESIGN OF RAFT-PILE FOUNDATION BY POULOS METHOD AND SOFTWARE PLAXIS ABSTRACT In Bali, especially Kuta area there are many layers of soft soil with hard soil depth far from the surface of the land. Sufficient foundation design is required to avoid soil degradation. This research aims to produce alternative pole-raft foundation design using Poulos manual method and Plaxis software. Poulos manual method using trial and error method with variation dimension cross section of pile, pile length, and number of piles. The results of this study show the final design configuration of the alternative foundation of this raft pile has a thickness of 0.30 meters raft and 25x25 cm2 pile along the 7 meters with 20 pieces. From this ideal configuration obtained the calculation of soil yield calculation by Poulos method of 6,53 cm, while with Plaxis software of 6,92 cm. Percentage mobilization of ultimate capacity of pole system with Poulos method by 52%, while using Plaxis software 56,5%. The percentage of load borne by the pole system by Poulos method is 79,83%, while with Plaxis software 80,24%.

MANAJEMEN RISIKO KESELAMATAN DAN KESEHATAN KERJA (K3) PADA PROYEK PEMBANGUNAN JAMBULUWUK HOTEL & RESORT PETITENGET Anak Agung Bayu Dharma; I G. A Adnyana Putera; A. A. Diah Parami Dewi
JURNAL SPEKTRAN Vol 5 No 1 (2017): Vol. 5, No. 1, Januari 2017
Publisher : Master of Civil Engineering Program Study, Faculty of Engineering, Udayana University

Abstract: Work accidents that occur on the construction project will be one of the causes of the disruption or cessation of activities of the project work. The construction sector is the highest contributor to work accidents and occupational illness in Bali. Rampant construction of temporary lodging facilities or hotels in Bali can be one of the contributors to accidents. This study aims to determine the potential hazard and any dominant risk contained in a hotel development process as well as provides preventive measures to reduce such risks. In this research, the method used was descriptive qualitative. The risk of Occupational Health and Safety (K3) was identified through JSA (Job Safety Analysis). Questionnaire survey was carried out to get feedback from the experts regarding the potential hazards identified. The dominant category of risk assessment that was rated by the concept of ALARP (As Low As Reasonably Practicable). The research identified 45 of dominant risks contained in the phase of work structures including 43 risks classified as high risk such as : exposed to maneuver heavy equipment and vehicles, heavy equipment rolled because the excavated area slid down/ subsided, cross rope of Tower Crane disconnected / entangled on the operation, the charge fell from Tower Crane and as many as two risks were classified as very high risk (extreme risk) that is : exposed to maneuver mixer and swing Tower Crane over the edge area of the project. The risks tended to be sourced in the work environment factors and work equipment. In order to minimize the impact of K3 risks, it is necessary to conduct risk control, evaluation activities in a daily, weekly, monthly periodic, considering a safe distance hazard source from workers, setting working hours, scenario procedures of an emergency, as well as safe work through work instruction to remind the importance of working in a healthy and safe condition.

ANALISIS PENGGUNAAN BANGUNAN PEREDAM BISING UNTUK MENGURANGI KEBISINGAN LALU LINTAS (STUDI KASUS JALAN ULUWATU II JIMBARAN) I Wayan Suastawa; D.M Priyantha Wedagama; IP. Alit Suthanaya
JURNAL SPEKTRAN Vol. 3, No. 2, Juli 2015
Publisher : Master of Civil Engineering Program Study, Faculty of Engineering, Udayana University

The present transport activities cause negative effects in the form of various kinds of diseases in the community. The government in this case, it makes use of the guidelines Noise Reduction Building (BPB) to reduce traffic noise. BPB in the design of Highways made ??of konblok ALWA (Artificial Low Weight aggregate) with a height of 2.75 meters was built along the road at a distance of 5 meters from the edge of the pavement. In this study, the noise level will be analyzed without and with unobstructed BPB. This study began from site selection studies, problem identification, goal setting research, development BPB, measuring noise levels without and with BPB analysis of the data and draw conclusions. From the analysis of the results obtained by calculation that the path chosen as the object of study, namely Jalan Uluwatu II Jimbaran without BPB has a noise value of 73.23 dB (A). While the values ??obtained BPB 61.85 decibels A, the value of this noise then most of the raw noise threshold has been exceeded so that some kind of designation of the area should be kept lying on the edge of the pavement. From the calculation of the distance from the edge of pavement to reduce noise levels in order to be secure appropriate noise threshold obtained for the allotment of residential, hospitals, schools and places of worship should be within 24.29 meters from the edge of the pavement. For government offices, public facilities should be located at a distance of 6.79 meters, while for offices, commerce, industry, services and stations could be placed as close as possible but still within the protection of BPB.

KOMPARASI MODEL HIDROGRAF SATUAN TERUKUR DENGAN HIDROGRAF SATUAN SINTETIS (STUDI KASUS DAS TUKAD PAKERISAN) Ayub Benny Kristianto; I Nyoman Norken; I Gusti Bagus Sila Dharma; Mawiti Infantri Yekti
JURNAL SPEKTRAN Vol 7 No 1 (2019): Vol. 7, No.1, Januari 2019
Publisher : Master of Civil Engineering Program Study, Faculty of Engineering, Udayana University

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COMPARATIVE MODEL OF MEASURED UNIT HYDROGRAPH WITH SYNTHETIC UNIT HYDROGRAPH (CASE STUDY OF TUKAD PAKERISAN WATERSHED) ABSTRACT Several methods and models of Synthetic Unit Hydrograph (SUH) have been developed to assist in the process of hydrological analysis within a Watershed. These methods include Snyder, Nakayasu, GAMA I, Limantara and ITB. The SUH methods are widely used by practitioners in calculating flood discharge, without knowing the deviations of these methods when compared to measured unit hydrographs in a watershed. This causes the SUH models give an overestimated or underestimated results to the measured unit hydrograph. Therefore, comparative SUH models are needed to determine the deviation of each model, and if necessary adjust the coefficient of the SUH model so that the SUH model approached the measured unit hydrograph in a watershed. Comparative studies of several SUH and measured unit hydrograph were performed on the Tukad Pakerisan watershed in Gianyar Regency-Bali. The measurable unit hydrograph comparisons on the watershed with the SUH Snyder, Nakayasu, GAMA I, Limantara, ITB-1 and ITB-2 models have significantly deviated results. This deviation is shown in three unit hydrograph parameters which include peak discharge (Qp), peak time (Tp), and base time (Tb). The SUH Snyder model with adjustment coefficient Ct = 0.800 and Cp = 1.052 very close to measured unit hydrograph of Tukad Pekerisan watershed with deviation less than 5%.

ANALISIS KELAYAKAN FINANSIAL PEMBANGUNAN JALAN TOL BENOA-BANDARA-NUSA DUA A.A Astri Dewi; P. Alit Suthanaya; D. M. Priyantha Wedagama
JURNAL SPEKTRAN Vol 1, No 2, Juli 2013
Publisher : Master of Civil Engineering Program Study, Faculty of Engineering, Udayana University

By Pass Ngurah Rai is the only primary arterial road linking the traffic flow of people and goods from Ngurah Rai Airport to Nusa Dua. Peak hour traffic flow condition has exceeded the capacity of the road. To solve the above problems, it is planned to build toll roads Benoa-Bandara-Nusa Dua. The objectives of this study were to analyze the performance of existing roads with and without the toll road, the rates applicable to service users and to analyze the financial feasibility of the investment of the project. Analysis was performed for several scenarios, including the scenario-1, assuming traffic growth factor of i = 9.96% / year, the interest rate 16% / year, inflation accounted for 8.506% / year and the toll rates using rates set by the Jasa Marga. All of the cost including land acquisition and construction costs were provided by investors. It was found that for the scenario-1, the NPV is Rp 1,586,137,984,347, -, BCR: 0.4754 and IRR 3, 8676%. The results of the financial analysis indicated that investment of the toll roads Benoa-Bandara-Nusa Dua is not financially feasible. In order for this project to be financially feasible, the growth rate of vehicles should be at least i = 14.7% / year.

PENGARUH KONSOLIDASI TERHADAP DEFORMASI DAN FAKTOR KEAMANAN DENGAN MODEL MATERIAL TANAH LUNAK O.B.A Sompie; T. Ilyas; B.I. Setiawan; Indartod Indartod
JURNAL SPEKTRAN Vol 5 No 2 (2017): Vol. 5, No. 2, Juli 2017
Publisher : Master of Civil Engineering Program Study, Faculty of Engineering, Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (561.713 KB)

Material models are always required to know the characteristics (physical and mechanical properties) of the soil layer at the site by using analysis of geotechnical studies that have been done in the field and in laboratories. Soils such as clay, silty clay and peat show a high degree of compressibility compared to other soils. In oedometer testing, the consolidated clay normally behaves up to ten times softer than the normally consolidated sand. This study aims to determine the soft consolidation behavior of soft clay primers by comparing the results obtained from finite element analysis calculations on Plaxis 2D with analytical calculations and survey measurements. Two different material models were used during finite element calculations, comparing the performance of Soft Soil Model, SSM models to the Mohr-Coulomb Model (MCM) model commonly used today. Practical geotechnical analysis of stability of embankment construction is done by using Plaxis 8 computer program, based on Finite Element Method to analyze deformation value and safety factor with construction phase of consolidation. Keywords: Consolidation, deformation, safety facor, SSM

HUBUNGAN KOMPETENSI PROJECT MANAGER TERHADAP KEBERHASILAN PROYEK KONSTRUKSI GEDUNG Ida Ayu Ari Brahmantariguna; GAP. Candra Dharmayanti; I W. Yansen
JURNAL SPEKTRAN Vol 4 No 2 (2016): Vol. 4, No. 2, Juli 2016
Publisher : Master of Civil Engineering Program Study, Faculty of Engineering, Udayana University

Abstract :One of the factor that influences the achievement of a project success is the role of a project manager. A reliable project manager, who knows his duties as a project leader and has the necessary competency requirements is needed to achieve the success of the project. The competence of a project manager can be measured by three aspects: knowledge, skill and attitude.This research aims to analyze the relationship between project manager competencies (that measured by three independent variables, i.e. Knowledge, skills and attitude) and the success of the building construction project. Data was collected through a questionnaire survey. The sample/ respondents were the expertise in the field of building construction services those acts as a project manager. Data was analyzed in three stages:first, factor analysis to reduce the variables into several groups of factors, that called as independent variables; second, correlation test with Pearson Correlation method to determine the correlation between independent variables and dependent variable; lastly, perform multivariate regression analysis The results of factor analysis showed that the variables are formed into eleven groups, and the result of Pearson Correlation test showed only six groups correlated to project success, those are: Communication and Scope Management, Human Resource Management, which is part of knowledge; Leadership and Project Management, Professionalism and Issues Management as part of skill; and attitude concerning Responsibility, Vision and Priorities. The sixth group of these factors will be the independent variables in multivariate regression analysis. Based on multiple correlation test results, six independent variables simultaneously have a significant influence to the project success, proved by the result of probability value is 0,032.

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