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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 252 Documents

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PENANGANAN WASTE MATERIAL PADA PROYEK KONSTRUKSI GEDUNG BERTINGKAT I Gusti Putu Adi Suartika Putra; G A. P. Candra Dharmayanti; A. A. Diah Parami Dewi
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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ABSTRAK Upaya pengelolaan terhadap material pada proyek konstruksi dapat menghindarkan pemborosan material dan timbunan waste atau sisa material di areal proyek yang dapat mempengaruhi kinerja sebuah proyek. Penelitian ini bertujuan untuk mengetahui jenis sisa material yang sering terjadi dan bentuk penanganan yang sudah dilakukan saat ini oleh pihak proyek serta untuk menganalisis upaya yang dilakukan untuk meminimalkan dan menangani sisa material tersebut. Pengumpulan data dilakukan melalui survei menggunakan kuesioner dan wawancara kepada Project Manager di sejumlah proyek konstruksi gedung bertingkat di Kota Denpasar dan Badung. Analisis data dilakukan dengan perangkingan berdasarkan persentase bobot dari masing-masing jenis material sisa dan upaya yang dilakukan untuk meminimalkan dan menangani sisa material. Hasil penelitian menunjukkan bahwa jenis sisa material yang paling sering dihasilkan adalah kayu bekisting, besi tulangan, cat, keramik, gypsum board/kalsiboard, bata/batako, semen, koral serta pasir. Bentuk penanganan yang sudah dilakukan saat ini oleh pihak proyek adalah menjual sisa material yang masih bernilai kepada salvage company atau memanfaatkannya untuk keperluan proyek mendatang, atau membuang sisa material yang berupa limbah ke tempat pembuangan akhir (TPA). Upaya untuk meminimalkan sisa material dilakukan dengan tindakan pencegahan yang mencakup optimalisasi penggunaan material, penerapan metode konstruksi yang efektif dan efisien, serta peningkatan akurasi estimasi dan pemesanan. Hal ini dapat diterapkan secara efektif dan berkesinambungan bila didukung komitmen dari kontraktor pelaksana yaitu dengan menambahkan divisi khusus yang betugas merencanakan, melaksanakan dan mengontrol upaya pengelolaan sisa material.

PENGGUNAAN SERBUK BATU TABAS SEBAGAI PENGGANTI SEBAGIAN SEMEN DALAM PEMBUATAN BETON I W. Intara; I M. Alit K. Salain; N. M. Anom Wiryasa
JURNAL SPEKTRAN Vol 1, No 1, Januari 2013
Publisher : Master of Civil Engineering Program Study, Faculty of Engineering, Udayana University

Research on the use of stone dust (SDT) as a partial replacement of Ordinary Portland Cement (OPC) has been carried out by using cylindrical concrete specimens with Ø = 150 mm and h = 300 mm. Specimens were made by using the ratio, in weight, of cementitious material : sand : crushed stone of 1.00 : 1.93 : 2.67. The water cementitious material ratio is of 0.52. The cementitious material is a mixture of OPC and SDT. The percentage of OPC replacement by SDT varied from 0%-25%. The distribution of grains of sand and crushed stone are designed according to SNI 03-2384-2000: gradation zone 2 for fine aggregate and gradation with a maximum diameter of 20 mm for coarse aggregate. The tests of compressive strength, elastic modulus, tensile strength and permeability on the cylindrical specimens were realized at 28 and 56 days. The result indicates that SDT shows a good pozzolanic reactivity in terms of compressive strength, elastic modulus, tensile strength and permeability. Therefore, it can be used as a component of Portland Cement Composite. The development of compressive strength, elastic modulus, tensile strength and permeability of concrete produced with a mixture of OPC and SDT depends on the amount of SDT used in the mixture and hydration time. The pozzolanic effect of SDT can only be seen at the age of 56 days. The optimal use of SDT as a partial replacement of OPC in concrete applications varied from 5%-10%.

ANALISIS PERILAKU HUBUNGAN PELAT-KOLOM TEPI STRUKTUR PELAT DATAR MENGGUNAKAN CONCRETE DAMAGE PLASTICITY (CDP) DALAM ABAQUS I Ketut Sudarsana; I Gede Gegiranang Wiryadi; I Gede Adi Susila
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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This research was done to investigate the behavior of edge slab-column connection of flat plate structure using the CDP features of ABAQUS software. Experimental specimen obtained in the literature was modelled in ABAQUS software with CDP features to define the concrete inelastic behavior. The investigated slab-column connection is an edge slab-column subassembled connection having slab dimension of 1020 mm x 1540mm, slab thickness of 120 mm, column dimension of 250 mm x 250mm and column height of 1520 mm. The vertical load and unbalanced moment were applied through the column ends. The vertical load works in the direction perpendicular to slab surface, and the unbalanced moment perpendicular to slab free edge that is obtained from a couple of horizontal forces acting in opposite direction. As many as 22 models were analyzed for five variations on CDP parameters and mesh size. The parametric values of the CDP were varied to obtained the analysis results predict well the experimental results. The analysis shows that the parametric values of CDP such as viscosity (µ) of 0,00005, dilatation angle (?) of 40°, using tension strain to define tension behavior of concrete, and considering damage parameter due to compression and tension give the analysis results of the behavior of edge slab-column connections close to experimental result. Key words: edge slab-column connections, unbalanced moment, punching shear, abaqus, concrete damage plasticity

ANALISIS FAKTOR YANG MEMPENGARUHI KINERJA PENGELOLAAN PENYEDIAAN AIR BERSIH PERDESAAN DI DESA BUKIAN GIANYAR Ida Bagus Putu Adnyana; I Gusti Bagus Sila Dharma; I Made Dwipa Arta
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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ANALYSIS OF FACTORS AFFECTING THE PERFORMANCE OF CLEAN WATER SUPPLY MANAGEMENT IN VILLAGE BUKIAN GIANYAR ABSTRACT The developmemt of clean water infrastructures and facilities in rural areas has not been accessed properly. By using PANSIMAS program from the goverment and communityself - help, it has been constructed drinking water infrastructures and facilities that will be managed by community itself by forming Management Facility Group (KPS). The limitation of management capability causes problems in implementation of management so that the water management perfomance tends to decrease. So it is necessary to conduct a research toanalyze the factors that affect the perfomance of clean water management in Bukian Village, Payangan District, Gianyar Regency. This research was conducted through interview technique by using questionnaire and analyzed using factor analysis. Research variabels to be analyzed consisted 55 (fifty five) variabels from five aspects of public sector performance measurement (aspect of input, process, output, outcome and impact) which cover 9 (nine) dimensions based on literature reviews and 5 (five) dimensions based on interview results. The test result of the research instruments was begun with the validity and reliability test. The factor analysis was stated feasible and there was a variable correlation. Partial correlation testing stage used MSA to measure the correlation of all variables. From the analysis result to 55 research variables, there were 21 variables that were reduced, so there were 34 research variables to do analysis again. Furthermore, the main component analysis was done to reduce data to be simpler with the result of factor extraction for the management performance of clean water supply amounted to 9 new factors. The dominant factor which affects the management performance of water supply is the factor of service improvement.Based on the conclusion of the research results is suggested to create a legal policy in the form of Local Regulations (Perda) of rural water management. It takes the role of the village apparatus as a SPAM’s counselor in the form of commitment and support to legality and independence of UPS/KPS in the local village.

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.

ANALISIS KELEMBAGAAN KAWASAN STRATEGIS PARIWISATA NASIONAL (KSPN) DALAM PENYELENGGARAAN PENATAAN RUANG PROVINSI BALI Ngakan Made Anom Wiryasa; Preantjaya W.P; Darma Warsika
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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Institutional dynamics is very much in line with the economic dynamics in which there are many interactions. The dynamics of the institutional nature is due to the change of society's values and culture in accordance with current conditions and situations. The objectives of this research are: (i) to identify institutional sources related to Besakih-Gunung Agung Area and surrounding areas as KSPN in organizing spatial planning; (ii) identifying sources of conflict or disharmony in the arrangement of Besakih-Gunung Agung and surrounding areas after being designated as a National Tourism Strategic Area. (iii) make recommendations on the settlement of institutional conflicts in the management of the Besakih Area spatial arrangement. This study refers to empirical approaches (empirical approaches), because the research instrument tends to be designed to approach qualitative design. To obtain data and information from resource persons using semi-structured interviews. Conclusion: conflict of institutional sources: (i) Space / spatial Matra limitation; (ii) the limitations of the RTRW and no Zoning Rules yet. Recommendation: (i) to complete and socialize zonation regulations and / or Detail Plan for Besakih-Gunung Agung and surrounding areas; (ii) complement the RTRWP derivative relating to detail plan of Bali provincial strategic area (KSPN Pura Besakih-Gunung Agung and surrounding areas); (iii) existing institutional empowerment in the framework of orderly control of space and (iv) the development of tourism facilities based on the potential of nature tourism, culture, and especially religious or spiritual tourism. Keywords: institutional, RTRW (Spatial Plan), KSPN (National Tourism Strategic Area)

STUDI EKSPERIMENTAL TENTANG KEKUATAN DINDING BATA DENGAN PERKUATAN Maya Saridewi Pascanawaty; M Sukrawa; I.A M Budiwati
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: Experimental study on the strength of brick walls have been done through literature review and laboratory testing to determine flexural, compressive and shear behaviour of the walls. Four different type of walls were used consisted of walls without plastering (TP), walls with plastering (DP), walls with plastering and chicken mesh reinforcement (DPK), and walls with plastering and wire mesh M4 reinforcement (DPW). The behaviour examined included load-deformation relationship and crack pattern/mode of failure. Laboratory testing included compression test (C) namely CTP, CDP, CDPK and CDPW; bond/shear strength test (S) namely STP, SDP, SDPK, and SDPW; flexural strength tests for failure plane perpendicular to bed joints (F) namely FTP?, FDP?, FDPK?, and FDPW?; and flexural strength tests for failure plane parallel to bed joints, namely FTP//, FDP//, FDPK// and FDPW//. Prior to testing the wall, tests on constituent materials were conducted. Red brick (made in Negara) showed compressive strength of 11,03 N/mm² with water absorption of 21,84%. Compressive strength of mortar was 9,1 N/mm². For the wall specimens testing was done after 28 days. The data obtained from the wall tests showed that compression strength for CTP, CDP, CDPK and CDPW are 3,82 N/mm², 3,84 N/mm², 7,46 N/mm², and 6,33 N/mm², respectively. Values for CDP, CDPK and CDPW are 1,01; 1,95; and 1,86 greater than that for CTP. Bond strength values of STP, SDP, SDPK and SDPW are 0,11 N/mm², 0,28 N/mm², 0,54 N,mm², and 0,42 N/mm², respectively. Values for SDP, SDPK and SDPW are 2,58; 4,88; and 3,87 greater than that of STP. Flexural strength values of FTP? and FDP? are 0,93 N/mm² and 1,27 N/mm², with a failure load for FTP?, FDP?, FDPK?, and FDPW? are sebesar 8,17 KN, 25,17 KN, 31,17 KN and 40,67 KN, respectively. The values for FDP?, FDPK?, and FDPW? are 3,08; 3,82; and 4,98 greater than that of FTP?. Flexural strength values of FTP// and FDP// are 0,38 N/mm² and 0,66 N/mm², with a failure load for FTP//, FDP//, FDPK//, and FDPW// are 3,5 KN, 13,67 KN, 18,33 KN and 32,83 KN, respectively. The values for FDP//, FDPK//, and FDPW// are 3,9; 5,24; and 9,38 greater than that of FTP//. The flexural strength of FDPK and FDPW that’s not analyzed because it was a shear failure and not a flexural failure. Stiffness (EA) for CTP, CDP, CDPK, and CDPW are 725,09 KN, 1096,32 KN, 2357,64 KN, and 1869,78 KN, respectively. The last three values are 1,5; 3,3; and 2,6 greater than that for CTP. Stiffness (EI) of FTP? was 23,78 KNm2, while stiffness of FDP?, FDPK? and FDPW? are 68,68 KNm2, 96,31 KNm2 and 112,17 KNm2, respectively, or 2,9; 4,0; and 4,7 greater than that for FTP?. Stiffness (EI) of FTP// was 12,99 KNm2, while stiffness of FDP//, FDPK//, and FDPW// were 46,89 KNm2, 84,53 KNm2 and 119,51 KNm2, respectively, or 3,6; 6,5; and 9,2 greater than that for FTP//.

ANALISIS FAKTOR-FAKTOR YANG MEMPENGARUHI GAGAL LELANG PENGADAAN BARANG DAN JASA PEMERINTAH SECARA ELEKTRONIK ( E-PROCUREMENT ) DI KABUPATEN BADUNG I N. R. Karyasa; I M. Alit K. Salain; Mayun Nadiasa
JURNAL SPEKTRAN vol 2, No 1, Januari 2014
Publisher : Master of Civil Engineering Program Study, Faculty of Engineering, Udayana University

Starting in 2012 implementation of the procurement of goods / services in Badung regency have been conducted electronically (e-Procurement) by E-tendering procedure. But implementation in construction work package there were many failed auctions. This study aims to find out what factors that affect occurance of failed auction and what dominant factors influence it. The sample used in this study were 50 contractor company by using non-probability sampling with purposive sampling and data collection by using questionnaires. Data analysis was performed with factor analysis. The results shows there are 5 factors that have affect to the occurrence of failed auctions, the procurement with cumulative variance 84.327% that from 30 variable. The most dominant factors is I factor with eigenvalues 7.818 and variance 26.061% that formed by 8 variables. The eight variables compiler of I factor that are, not yet ready with the procurement of goods /service electronically, fail to upload offering documents, the lack of time availability to prepare offering documents, late to know auction announcement, personnel qualifications of project team do not match, ther is no / in-appropriate support from suppliers, incomplete offering documents and do not ready with evidence of qualifications.

ANALISIS PEMBEBANAN LALU LINTAS PADAPERENCANAAN JALAN-JALAN PERINTIS I Wayan Suweda
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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Nusa Penida (20,284 ha) is nearly 2x the areas of the other three districts of Klungkung regency,which located in the Bali mainland (11,216 ha). However, the condition of people is very underdeveloped. The regionsdisparityis caused by various factor, one of them is "isolated" area of ??Nusa Penida. So,itsneed to be planned a pioneering road to improve accessibility. In the prediction of traffic assignment, of course, can not be based solely on the existing very small trip generation. For that ananalogous method should be set up to the region that has the same characteristics. Analogy method was developed through a comparative study to other areas of Bali with a similar limestone structure, the same road networkand tourist areas. In accordance with development plan, it can be predicted that the road ADT in 2020 will be 5,800.62 pcu/day and DHV725.08 pcu/hour. Meanwhile, the end of the road horizon-year 2045 reaches 37,576.31 pcu/day with DHV of 4,697.05 pcu/hour. Assuming that of the rural environment, the capacity of the 2/2UD hilly road is 2,910 pcu/hour. Therefore, from the loading analysis shows that in the year of 2038 the road should be widened to be 4 lanes to serve the-2traffic directions. Keywords:pioneer road, analogy method, nusa penida

ANALISIS KARAKTERISTIK DAN KEBUTUHAN PARKIR TERMINAL KARGO DI KOTA DENPASAR Nyoman Gery Arishandi; P. Alit Suthanaya; D.M. Priyantha Wedagama
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: Cargo Terminal which has 70 units space is holding control of freight passing through the city center and as a place of loading and unloading of goods vehicles which do not have a warehouse. However, the activity of loading and unloading of goods is still widely practiced in the right of way which causes traffic jams. This triggers the Denpasar government to develop Terminal Kargo Denpasar so as to supply the demand for parking and loading and unloading activities. The purpose of this study was to analyze the characteristics of the parking and future parking needs in developing Terminal Kargo Denpasar . The method used to obtain data through direct surveys such as inventory survey and survey cordon parking and secondary data obtained from the relevant agencies. The analysis shows the volume of parking of vehicles is 44,5 vehicles / hour, parking capacity is 36 vehicles / hour, parking supply as much as 372 vehicles and 4 for Parking Index that indicates there has been a problem of parking in the Terminal Cargo Denpasar. It is show Terminal Kargo Denpasar has been unable to supply activity goods vehicles. The amount of the parking requirements for development of Terminal Kargo based on parking characteristic analysis are 101 spaces.

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