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Jurnal Spektran
Published by Universitas Udayana
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Core Subject : Engineering,
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 252 Documents
EVALUASI PELAKSANAAN PROGRAM BANTUAN PERBAIKAN RUMAH UNTUK RUMAH TANGGA MISKIN (RTM) DI KOTA DENPASAR Wiwik Hermawati; I N. Sutarja; Mayun Nadiasa
JURNAL SPEKTRAN Vol. 3, No. 2, Juli 2015
Publisher : Master of Civil Engineering Program Study, Faculty of Engineering, Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (250.239 KB) | DOI: 10.24843/SPEKTRAN.2015.v03.i02.p09

Abstract

The endeavor of Denpasar City Government in establish the wellbeing of its people especially the underprivileged households is conducting a house renovation aid program in order to accomplish the essential privileges of livable and healthy housing. With numerous problems during the development program execution, therefore, this study is carried out to evaluate the program implementation to determine the program effectiveness index and its relationship between the program effectiveness and the increase of the wellbeing of underprivileged households. The primary data are composed from survey feedbacks of sequence of questions in a questioner. While, the secondary data were collected from Office of Spatial Planning and Housing of the City of Denpasar and other related agencies. The methods used in data collection consist of interviews and questionnaires.  Out of 30 questions in the questioner, all were affirmed valid and reliable. The analytical tool utilize in the study were descriptive analysis, effectiveness analysis in term  of input variables, output variables, outcome variables and impact variables which modify Dantes' formula; and Chi Square analysis to distinguish the relationship between program effectiveness and program's impact to wellbeing improvement. Of the five Dante's categories of effectiveness index, the analysis of the feedbacks of 68 respondents which distributed in four districts in the City of Denpasar are presented in this study. The total score value of program implementation effectiveness, indicated by X, X = 4581, within the range 3400 ? X ? 4760. This index value showed that the implementation of the house renovation for underprivileged households aid program is classified to be less effective. The value of Chi Square of the study is greater than its critical value (47.33 > 13.277). It is indicating that there is a significant relationship between program effectiveness and the program impact to the people wellbeing improvement. It is suggested that when the program and its impact is to be continued, the effectiveness variables need to be optimized and so the managements improvements in order to increase the wellbeing of the underprivileged households.
MANAJEMEN RISIKO PELAKSANAAN PEMBANGUNAN SISTEM PENGOLAHAN AIR LIMBAH TERPUSAT KOTA DENPASAR TAHAP II (JARINGAN AIR LIMBAH PEDUNGAN) I Gusti Agung Adnyana Putera; Kadek Diana Harmayani; I Gede Indrajaya Putra
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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Abstract

ABSTRACT: Denpasar Centralized Waste Water Treatment System Project Phase II (Pedungan Waste Water Network) was conducted in Fiscal Year 2015. The project has been undertaken to improve the service of domestic waste water from households, boarding houses, restaurants, hotels, as well as villas. Processing system used is the centralized piping system and the management of the local system IPLT (Faecal Matter Processing Installation) as well as expanding the waste water pipe network in the city of Denpasar. IPLT development is a project that is claimed as the project's first stool processing engine technology in Bali. Based on this, there is a need to study of the risks that occur during the construction of the project. The research was conducted through interviews along with personnel experience and expertise, manufacture and distribution of the questionnaire, doing a test from the result of questionnaire with test the validity and reliability risks that arise in the implementation of this project. Risks are obtained in this study a number of 71. The distribution of risk acceptability in the project as much as 8 (11.27%) risk (less precise drawings, project specifications and addendum provided by the owner), including unacceptable, 50 (70.42%) risk ( quality concrete Pile Anchorge that does not comply with the specifications approved) including undesirable, 9 (12.68%) risk (operational and overhead costs are high) including acceptable, 4 (5.63%) risk (the use of the funds out of contract ) including negligible. Risk mitigation is only given to major risk include risk unacceptable and undesirable risk. Based on the results of the risk management, implemented regulations on ownership of risk (risk ownership) against perpetrators (project owners, consultants, planners, consultants and contractor supervision) involved in the implementation of Denpasar centralized wastewater treatment system project.
PERKUATAN SEISMIK STRUKTUR RANGKA BETON BERTULANG MENGGUNAKAN BREISING BAJA TIPE X DAN V TERBALIK Made Sukrawa; Ida Bagus Dharma Giri; I Putu Deskarta; Made Hendra Prayoga
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

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (591.065 KB) | DOI: 10.24843/SPEKTRAN.2016.v04.i02.p10

Abstract

Abstract: Analysis of reinforced concrete frame with steel braces has been done to compare the behavior of the open frame structure with reinforced concrete structure with steel braces. Three models of 2D open frame structure with 3, 4 and 5 floors were made and analyzed in SAP2000 v17 with intermediate detailing according to Indonesian Codes for Seismic Load (SNI 1726: 2002). 3-span frame structure with a span length of 6 m and level height of 3,5 m were designed according to SNI 1726: 2002, and then re-analyzed with special detailing according to New Indonesian Codes for Seismic Load (SNI 1726: 2012). After that, it was added with braces as seismic retrofitting. Two types of braces (X and concentric inverted V) were used in this study and analyzed with conventional analysis and stage construction analysis according to their stages of implementation. From the analysis results, several structure components that analyzed according to SNI 1726:2012 provitions were experience over-stressed. After retrofitted with steel braces, those components fulfill strength provition according to SNI 2847:2013 about structural concrete regulations for buildings. In addition to that, displacements that occurs on braced frame are smaller than displacements of the open frame structure with ratio of 0.08, 0.12, and 0.18 for X-brace frames with 3,4, and 5 storey and 0.07, 0.11, and 0.16 for inverted-V brace. With staged construction analysis, displacements of  X-braced frame structure increased by 14.38%, 13.62%, and 9.98% from the conventional analysis results for structure with 3, 4,and 5 storey. For structure with inverted-V brace, displacements increased by 15.83%, 14.29%, and 10.09%.
PENERAPAN REKAYASA NILAI PADA PROYEK PEMBANGUNAN GEDUNG SEKOLAH (STUDI KASUS PEMBANGUNAN GEDUNG SEKOLAH SANUR INDEPENDENT SCHOOL) Nyoman Martha Jaya; Anak Agung Gde Agung Yana; I Wayan Gde Erick Triswandana
JURNAL SPEKTRAN Vol 7 No 2 (2019): Vol. 7 No. 2, JULI 2019
Publisher : Master of Civil Engineering Program Study, Faculty of Engineering, Udayana University

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Abstract

THE IMPLEMENTATION OF VALUE ENGINEERING ON SCHOOL BUILDING CONSTRUCTION PROJECT(CASE OF STUDY SANUR INDEPENDENT SCHOOL)ABSTRACTIn a construction project, the cost is one of the factors that determine the sustainability of the project, especially in the case of study school building project at Sanur Independent School. Because of that, the austerity measures undertaken to produce an economical construction project. The selection of materials and construction methods can precisely determine the amount of savings to be gained in the implementation of the construction project, wherein the choice of materials and alternative methods will not necessarily reduce nor change the value of the function, quality and architectural value of the project itself. Therefore there is a need for job costing analysis to control these aspects. One of the methods that used for cost efficiency in a construction project especially on the building construction is Value Engineering Method that is a systematic way of defining the value of a subject to its function so that an innovative and structured approach can be adopted with the aim of reducing unnecessary costs. By using this method can obtained two alternative combinations of designs such as , the best combination of alternative designs and the cheapest combination of alternative design, and based by the result of the researched, by using a combination of the best alternative design on this construction project wherein the initial BoQ have a value of Rp 2,003,372,657.68 obtained savings of Rp 36.492.428,34 atau 1,82 %. While using a combination of the cheapest alternative designs obtained savings of Rp 248,161,362.38 or 12.39 %.
ANALISIS SISTEM PENGADAAN PROYEK KONSTRUKSI TERHADAP PENYERAPAN ANGGARAN PEMERINTAH KABUPATEN BADUNG N. Gita Astadi; I N. Sutarja; Mayun Nadiasa
JURNAL SPEKTRAN Vol. 3, No. 1, Januari 2015
Publisher : Master of Civil Engineering Program Study, Faculty of Engineering, Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (393.92 KB) | DOI: 10.24843/SPEKTRAN.2015.v03.i01.p010

Abstract

Abstract : The rate of absorption of a government budget, especially on the construction projects, determine whether or not the optimal development of a region. The faster the budget absorption of the construction projects, the faster the perceived benefits. The purpose of the study was to determine the rate of the budget absorption, to find out the factors in the construction project procurement systems that affect the slow budget absorption of the Local Government of the Badung Regency as well as the efforts to minimize such delays. The data were obtained from the parties involved in the procurement of the construction projects through questionnaires as the research instruments. In addition, the data were also obtained through interviews, observations and documentations. The variables used in the study were 38 variables and 60 persons as the respondents. The data analysis was conducted through descriptive analysis, absorption analysis and factor analysis. The scoring system used a Likert scale, and data processing was conducted by SPSS. The findings of the study show that the rate of absorption of the Badung Regency Government’s construction projects for Fiscal Year 2012 - 2013 was not in accordance with the plan, but the increase was more than that of the previous fiscal year. While the results of the factor analysis by using SPSS indicate that the factors that affecting the slow absorption budget in the procurement system of most construction projects are: the fear and caution of the parties in carrying out procurement activities, the change in the activity package, the slow preparation of the Owner's Estimate (OE), the incomplete procurement documents, the misrepresentation of the procurement regulations and the slow process of procurements. And the most effective effort to enhance the budget absorption are the determination of the communication standards, the coordination and the synchronization in the procurement of construction projects with all parties involved in the procurement systems.
EVALUASI PELAYANAN UNIT LAYANAN PENGADAAN (ULP) TERHADAP TINGKAT KEPUASAN SATUAN KERJA PERANGKAT DAERAH (SKPD) DAN PENYEDIA BARANG/JASA DI LINGKUNGAN PEMERINTAH KOTA DENPASAR Ni Ketut Sudiani; I Made Alit Karyawan Salain; Gusti Ayu Putu Candra Dharmayanti
JURNAL SPEKTRAN Vol 6 No 2 (2018): Vol. 6, No. 2, Juli 2018
Publisher : Master of Civil Engineering Program Study, Faculty of Engineering, Udayana University

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Abstract

ABSTRAK Pelaksanaan pengadaan barang/jasa pemerintah melalui sistem elektronik masih menimbulkan praduga negatif, baik dari pihak SKPD maupun penyedia barang/jasa. Agar peran dan pelayanan ULP bisa lebih baik, perlu dilakukan evaluasi dengan mengidentifikasi kondisi saat ini tentang tingkat kepuasan SKPD dan penyedia barang/jasa terhadap pelayanan ULP. Tingkat kepuasan layanan dapat dipengaruhi oleh lima variabel, yaitu wujud fisik (tangible), kehandalan (reliability), daya tanggap (responsiveness), jaminan (assurance), dan kepedulian (empathy). Penelitian bertujuan mengevaluasi tingkat kepuasan SKPD dan penyedia barang/jasa terhadap kinerja pelayanan ULP Pemerintah Kota Denpasar yang diukur berdasarkan lima variable tersebut. Metode pengumpulan data dilakukan melalui penyebaran kuesioner, yang sudah diuji validitas dan reliabilitasnya. Analisis data dilakukan dengan analisis deskriptif dan regresi linear berganda. Hasil analisis deskriptif menunjukkan tingkat kepuasan SKPD terhadap pelayanan ULP Pemerintah Kota Denpasar adalah sebesar 76,97% (puas). Tingkat kepuasan rekanan penyedia barang/jasa terhadap pelayanan ULP Pemerintah Kota Denpasar adalah sebesar 85,09% (sangat puas). Berdasarkan hasil analisis regresi linier berganda, variabel yang paling mempengaruhi kepuasan SKPD adalah Assurance (0,449) diikuti oleh variabel lainnya berturut-turut sebagai berikut Emphaty (0,214), Tangible (-0,024), Responsivness (-0,067) dan Reliability (-0,174). Sedangkan variabel yang paling mempengaruhi kepuasan penyedia barang/jasa adalah Tangible (0,510) diikuti oleh variabel lainnya berturut-turut sebagai berikut Responsiveness (0,230), Assurance (0,127), Emphaty (0,077) dan Reliability (-0,129).
ANALISIS KUALITAS PELAYANAN PAS BANDARA INTERNASIONAL NGURAH RAI DENGAN MENGGUNAKAN MODEL SERVQUAL I Made Suska V; N. Budiartha R. M.; Gd. Astawa Diputra
JURNAL SPEKTRAN Vol 1, No 1, Januari 2013
Publisher : Master of Civil Engineering Program Study, Faculty of Engineering, Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (124.665 KB) | DOI: 10.24843/SPEKTRAN.2013.v01.i01.p06

Abstract

Permit to a person to enter the restricted area at Ngurah Rai Airport which is called Airport Pas can be given in accordance with the duties and activities of a person at the airport. On permit service, there are disappointments and complaints of the Pas applicant that can still be found in the Pas service like duration of Pas completion and officer service at the time of application. The different perception and expectation of Pas applicant must remain in the regulation corridors and prioritize security at airports. The purpose of this research is assesing the quality of Pas service in the Airport Authority Region IV by using a SERVQUAL (Service Quality) model. The model is comparing the two main factors, namely real customer perception of the service that they received (Perceived Service) with the actual services expected/desirable (Expected Service) which consists of 5 (five) dimensions, those are Tangibles (physical), Reliability, Responsiveness, Assurance and Empathy (attention). By using these models, it is known that the quality of Pas service in the Airport Authority Region IV is still less than the expectations of the applicant and the most important dimension to enhance is Responsiveness. Gaps between perception and expectation as follows: Responsiveness (-0,2240), Assurance (-0,2171), Reliability (-0,2099), Tangibles (-0,1994), dan Empathy (-0,1373).
KAJIAN EFEKTIVITAS PENGELOLAAN SIMPANG DENGAN UNDERPASS (STUDI KASUS SIMPANG TUGU NGURAH RAI DI PROVINSI BALI) Putu Alit Suthanaya; Ni Nyoman Rosita
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

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Abstract

One option to overcome traffic jam that has been implemented was by building Bali Mandara toll road. However, the connection between the toll road with the Tugu Ngurah Rai intersection has caused traffic jam and long queue. Therefore, it is required to analyse appropriate traffic management at Tugu Ngurah Rai intersection. This study aims to analyze the existing performance of Tugu Ngurah Rai roundabout and to provide the alternatives control considering both signalized roundabout and separated-grade intersection of partial-type underpass. The analysis is conducted in accordance to the Indonesian Highway Capacity Manual (MKJI, 1997). The study showed the existing performance of Tugu Ngurah Rai roundabout was at the level of service C. In addition, the degree of saturation, average delay and queue probability of the roundabout were 0.652, 10.802 sec/pcu and 6%-25%, respectively. The roundabout is predicted to reach a level of service D in 2019 with the average delay of 26.664 sec/pcu. Installing signalized traffic control at Tugu Ngurah Rai roundabaout is unable to reduce the congestion, therefore, a separated-grade intersection of underpass is such a plausible alternative. An alternative design of underpass on north-south direction in 2019 is found to be better than east-west direction. The underpass on north-south direction will have a degree of saturation, average delay and queue probability of 0,517, 9.7118 sec/pcu and 12% - 21%, respectively. These condition is equal to a level of service B. Furthermore, considering the increase of traffic flow in 2026, the underpass is predicted to experience a level of service D with average delay of 20.773 sec/pcu. Keywords: roundabout, signal, underpass, performance
KARAKTERISTIK MANAJER PROYEK TERHADAP KINERJA KONSTRUKSI GEDUNG DI KABUPATEN BADUNG I Putu Widyarsana; N. Martha Jaya; Gd. Astawa Diputra
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

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (176.302 KB) | DOI: 10.24843/SPEKTRAN.2016.v04.i02.p01

Abstract

Abstract Badung regency in Bali, where the tourism industry is growing very rapidly. Building continues to grow, such as hotels, villas, resorts, hospitals, and so forth. Implementation of building construction projects in Badung not be separated from the issue of costs, quality of execution and completion time of the project. These problems arise due to lack of skills / competencies project manager of the responsibility to integrate and coordinate all available resources for the achievement of project objectives. In this case the role of Project Manager will determine the success of a project. So, there should be a study of the basic capabilities that must be owned by the Project Manager, among others: Conceptual Skills, Technical Skill, and Soft Skills. Data collection is done by the method of observation and surveys. Factor analysis was conducted to identify factors / characteristics Project Manager that affect the quality of the construction project implementation performance. Multiple linear regression analysis determined the relationship of the performance characteristics of the project manager building construction projects in Badung. Factor analysis resulted in the identification of 22 variables that affect the quality of the building construction project implementation performance. Multiple linear regression analysis determines the characteristics of the Project Manager greatest influence on the quality of the building construction project implementation performance is Social Skills aspect of 33.08% compared to the other two aspects, namely the conceptual skills (32.10%) and Technical (9.40%) . The total value of the influence of the three aspects of the characteristics of the project manager of 74.58% means that there are still approximately 25.42% influenced by other factors, such as the state of nature, the environmental situation, location, and so on, the implementation of building construction projects in Badung.
DAKTILITAS SAMBUNGAN MODEL TAKIKAN RANGKAP PADA HUBUNGAN BALOK-KOLOM BETON PRACETAK, AKIBAT BEBAN LATERAL SIKLIK Ruminsar Simbolon; Herman Parung; Rita Irmawaty; Arwin Amiruddin
JURNAL SPEKTRAN Vol 7 No 2 (2019): Vol. 7 No. 2, JULI 2019
Publisher : Master of Civil Engineering Program Study, Faculty of Engineering, Udayana University

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Abstract

DUCTILITY OF DOUBLE NOTCH CONNECTION IN PRECAST BEAM COLUMN JOINT, DUE TO CYCLIC LATERAL LOADSABSTRACTBy considering the structure of precast concrete as a monolithic structure, flexural and shear reinforcement of beam column joint can be planned based on the design capacity This research is an experimental study in a full-scale laboratory, which aims to analyze the precast ductility value of double notch models due to cyclic lateral loads. The specimen consists of two models, which are precast beam-column connections and monolithic beam column. The precast and monolithic specimen were designed for the same strength. The cross-sectional dimensions of the beam 250 mm x 300 mm and column 300 mm x 300 mm. This research was carried out with the following stages : (1). Physical Test of Concrete Materials (2). Physical Test of Reinforced Steel Material (3). Strength bonding test (4). Physical test of precast column beam connection. Tests are carried out after the concrete is more than 28 days old. The results showed that after being given a cyclic load on the two structural models, connection precast beam-column joint type of double notch (STRS) type were better able to deform under tensile loads (ductility = 5.52), while the monolith column beam components were better able to deform compressive load (ductility = 7.66). Based on the ductility value obtained, the connection of this double notch model can function as a full ductile connection, so that it can be applied to the building of earthquake force retaining structures for special moment bearers