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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 403 Documents
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STUDI KELAYAKAN INVESTASI BISNIS PROPERTI (STUDI KASUS: CIATER RIUNG RANGGA) Putu Dharma Warsika
Jurnal Ilmiah Teknik Sipil Vol. 13, No. 1 Januari 2009
Publisher : Department of Civil Engineering, Udayana University

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Abstract

It has been long time that government (regulator), developer (organizer)and banking side (source of finance) are trapped in wrong assumption of seeingbusiness of property. The government assumption that development of big scalehousing area (by development of new town or self-supporting town) will createefficiency at national industry housing in fact is totally wrong. Developer andbanking side opinion which say that by using business calculation big scaleproperty will give more benefits than those of small scale project. Logically, thegreater the project property the higher the price of the land and the house to be soldto the consumer but it lacks of buyer.Ciater Riung Rangga is one of property projects which were launched in 1995 andinvested a big capital in long term. The question arises whether investment to thatproject will benefit or not. Analyses such as cash in flow, cash out flow, projected cash flow, NPV, IRR, Profitability index, Modified IRR and COC are used toanalyze the data.Base on the research conducted total cash in flow and cash out flow of the CiaterRiung Rangga project were Rp190.772.079.000,- and Rp121.493.750.000,-respectively. Projected Net profit was Rp35.202.956.100,-. NPV obtained wasRp14.848.189.000,- indicating that this project was competent to be run. Result ofIRR was 69,38 % (greater than 20%), which means that the project was feasible tobe run. Profitability Index/ ratio was >>> 1, with assumption that initialinvestment was zero. Result of MIRR was 33, 42% and COC was 25,76%,meaning that it can be reinvested (MIRR > COC).
ANALISIS PENGARUH LOKASI TERHADAP BIAYA PROYEK IRIGASI (STUDI KASUS : PENGANGKUTAN MATERIAL KE LOKASI PROYEK IRIGASI DI KABUPATEN GIANYAR) Mayun Nadiasa; A.A.Diah Parami Dewi; Satrya Pameka
Jurnal Ilmiah Teknik Sipil Jurnal Ilmiah Teknik Sipil, Vol. 18, No. 2, Juli 2014
Publisher : Department of Civil Engineering, Udayana University

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Abstract

Proyek dengan lokasi jauh dari jalan, tanpa akses kendaraan dengan medan yang berelevasi, harus dipertimbangkan dengan baik oleh para kontraktor.  Biaya pengangkutan untuk pengadaan material dengan tenaga manusia yang harus dikeluarkan perlu diestimasi sesuai dengan kebutuhan lapangan karena akan berpengaruh terhadap nilai proyek itu sendiri. Penelitian ini bertujuan untuk menganalisis produktivitas pekerja angkut batu kali dan pasir, koefisien pekerja angkut, dan persamaan pengaruh jarak terhadap biaya pengangkutan di lapangan. Untuk mendapatkan nilai produktivitas pekerja pengangkutan dengan membagi volume rata-rata material dengan man-hours untuk tiap rentang jarak. Nilai koefisien pekerja angkut diperoleh dengan membagi jam produktivitas dengan jam kerja efektif. Persamaan pengaruh lokasi proyek terhadap biaya pengangkutan diperoleh dengan metode regresi linear sederhana. Nilai produktivitas pekerja pengangkutan batu kali dan pasir dengan jarak antara 50m-150m dari tempat pertama diturunkan masing-masing sebesar 0,124 m3/jam-orang (batu kali) dan 0,132 m3/jam-orang (pasir). Produktivitas mengalami penurunan tiap pertambahan jarak angkut 100m rata-rata sebesar 0,0176m3/jam-orang (batu kali) dan 0.0182 m3/jam-orang (pasir) dari jarak 50m-650m. Nilai koefisien pekerja angkut batu kali. untuk jarak antara 50m-650m mulai dari 1,153Oh/m3 dan meningkat rata-rata sebesar 0,568 Oh/m3 tiap pertambahan jarak 100m. Begitu pula pengangkutan pasir dengan nilai koefisien 1,083Oh/m3 dengan peningkatan rata-rata 0,485 Oh/m3. Untuk persamaan pengaruh jarak lokasi terhadap biaya pengangkutan dengan metode regresi linear sederhana, dimana Y=biaya pengangkutan dan X=jarak pengangkutan, diperoleh persamaan Y=557.577,24+2.373X (biaya pengangkutan sama dengan 557.577,24 ditambah 2.373 dikali jarak pengangkutan material) untuk pengangkutan batu kali. Sedangkan untuk pengangkutan pasir diperoleh persamaan Y=525.756,7+2.465,7X. Kedua persamaan pengangkutan material tersebut memiliki pengaruh yang signifikan dan korelasi yang sangat kuat terhadap nilai proyek
THE INFLUENCE OF INCOME ON HOUSEHOLD MOTORCYCLE OWNERSHIP IN BULELENG REGENCY, BALI D. M. Priyantha Wedagama
Jurnal Ilmiah Teknik Sipil Jurnal Ilmiah Teknik Sipil, Vol. 17, No. 1, Januari 2013
Publisher : Department of Civil Engineering, Udayana University

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Abstract

Abstract: This study investigates the influence of income on householdmotorcycle ownership in Buleleng Regency, Bali using a Multinomial LogitModel. The household income in 2011 is about 15%, 28% and 57% to influence a household owning no, 1 and more than 1 motorcycles respectively. The probability of motorcycle ownership rises substantially by more than 15% for the next 20 years if household income in Buleleng Regency increases. This is particulary applied for the household owning more than 1 motorcycle. In contrast, the probability of a household owning no and 1 motorcycle drops significantly by almost 32% and 14% respectively for the next 20 years if household income in Buleleng Regency increases. A huge number of motorcycles used on the road continuously may lead to serious transport problems for the next few years. This is related to the negative impacts of transport including road accidents and traffic pollution. Improving the existing public transport and introducing a high quality public transport service within and to/from Buleleng Regency is urgently required. The fare of such high quality public transport service however, must be sufficiently low to compete with the cost of riding a motorcycle. In addition, a significant amount of fare subsidy from both local and central government is considerably required.
TEGANGAN GESER ULTIMIT PEREKAT EPOXY – RESIN TEGAK LURUS SERAT PADA SAMBUNGAN KAYU Dharma Putra
Jurnal Ilmiah Teknik Sipil Vol. 12, No. 1 Januari 2008
Publisher : Department of Civil Engineering, Udayana University

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Abstract

This research aims to determine ultimate shear stress at timber connection with 18% water content subjected to compressive load perpendicular to fibre orientation. Sample tests of connection were made from camfer timber of 6/15 connected at it both sides to other timber of 2 x 4/15. Sample tests were treated in 5 variation with fastening interfase 15 cm wide and various length of 10 cm, 15 cm, 20 cm, 25 cm, and 28 cm there were 3 repitition in each treatment. Sample tests were subjected to axial compressive increasing load with increase step of 2,5 kN until failure. Result of research shown that the value of shear stress of epoxy-resin glue due to compressive load are as follows. The average ultimate shear strength of connection with treatment I, II, III, IV and V are 14,208 kg/cm2, 16,042 kg/cm2, 17, 042 kg/cm2, 18,467 kg/cm2 and 20,268 kg/cm2 respectively. The minimum ultimate shear strength 14,21 kg/cm2, the maximum ultimate shear strength is 20, 27 kg/cm2 and the average ultimate shear strength is 17,19 kg/cm2. It can be conclude that shear strength is relatively high and could be use as alternative connection device. Connection using epoxy-resin has high efficiency but it is relatively brittle
ANALISIS KEBUTUHAN MODAL KERJA PADA PEMBANGUNAN PROYEK PERUMAHAN DENGAN METODE DISCOUNTED CASH FLOW (Studi Kasus: Proyek Perumahan Green Imperial Putra Residence) Made Adhi Krisnawan; I Putu Dharma Warsika; Mayun Nadiasa -
Jurnal Ilmiah Teknik Sipil Jurnal Ilmiah Teknik Sipil, Vol. 19, No. 1, Januari 2015
Publisher : Department of Civil Engineering, Udayana University

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Abstract

Pelaku pengembang atau developer dalam bidang bisnis property selalu berorientasi untuk mendapatkan keutungan yang maksimal dengan modal yang minimum. Maka dari itu, penyediaan modal kerja harus benarbenar diperhitungkan agar tersedia sesuai dengan kebutuhan. Modal kerja dapat berasal dari modal sendiri maupun pinjaman bank. Berdasarkan hal tersebut diatas permasalahan yang akan dibahas pada penelitian ini adalah mengetahui berapakah modal kerja yang dibutuhkan pada Proyek Pembangunan Perumahan Green Imperial Putra Residence. Metode yang digunakan dalam penelitian ini adalah metode Discounted Cash Flow atau yang sering disingkat dengan nama Metode DCF. Mekanisme teknis memakai metode Discounted Cash Flow diartikan sebagai aliran dana diskonto (arus kas masuk dan kas keluar) dengan aliran dana ini merupakan penjumlahan antara arus kas keluar dan kas masuk yang berkaitan dengan nilai waktu dari uang. Analisis yang digunakan yaitu Rencana Anggaran Biaya, Schedule Penjualan, Time Schedule, Jadwal Kebutuhan Biaya Proyek. Kemudian dianalisis Pinjaman Bank untuk mendapatkan jumlah Modal Kerja, Rencana Penerimaan Dana, Aliran Kas (Cash Flow), Penyusunan Laporan Keuangan setiap bulan yang terdiri dari laporan perubahan modal, laporan rugi laba, dan neraca. Selanjutnya analisis kelayakan dengan metode Net Present Value (NPV), Benefit Cost Ratio (BCR), dan Internal Rate of Return (IRR). Dari hasil analisis, Modal Kerja yang dibutuhkan pada proyek sebesar Rp 15.482.680.482,66. Yang berasal dari modal sendiri sebesar Rp.6.028.560.000, 00. Modal dari pinjaman bank sebesar Rp 9.454.120.482, 66. Perhitungan investasi menandakan proyek ini layak dengan nilai NPV yang diperoleh adalah Rp 12.685.319.867.94 > 0 , nilai BCR 1,154 > 1 dan Nilai IRR yang terlalu tinggi dikarenakan perbandingan aspek bene t dengan aspek cost yang besar sehingga tidak didapatkan nilai NPV negative.
KORELASI ANTARA PENGENDALIAN KUALITAS RENCANA PELAKSANAAN DENGAN KINERJA PROYEK KONSTRUKSI (Studi Kasus Pada Satuan Kerja Non Vertikal Tertentu Pengembangan Kinerja Pengelolaan Air Minum Provinsi Nusa Tenggara Timur) Wayan Yansen
Jurnal Ilmiah Teknik Sipil Vol. 14, No. 2 Juli 2010
Publisher : Department of Civil Engineering, Udayana University

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Abstract

In the construction project activity, planning is used as a reference by theimplementation unit and become a standard of the project implementation, andincludes: technical specifications, schedule and budgeting. Inaccurate planning,imperfect investigation of the project location, lack of experience and ability inmanaging the project and lack of professionalism of the service provider areclosely linked to the result of the process of a construction project (projectperformance). This research is conducted within the physical activityscope/construction stage that aims to find out the relation between influence qualitycontrol of the implementation plan and the performance of the construction project(cost and time performances). Primary data is obtained from questionnaries and is analyzed using SPSS. Theresearch found that the regression model chosen is nonlinear regression modelwhere the equation Y1=1,122+0.282X1+0,208X3+0,292X15+0,325X19+0,318X9 andY2=1,187+0.395X2+0,310X5+0,263X16+0,196X6+0,247X11 is for cost factor andtime factor respectively. The coefficients found in each regression model havepositive value. This shows that there is positive correlation between quality controlof the implementation plan and the construction project performance.Factors affecting the cost performances are quality of planning resources fordrawing design, quality of bidding of the service provider, quality control ofservice provider resources, the design revision, the project controlling while for thetime performances there are quality of design drawing, quality of technical biddingcontractors, quality of the project controlling, quality of service provider resources,and project implementation planning.
FAKTOR-FAKTOR PENYEBAB KETERLAMBATAN PENYELESAIAN PROYEK GEDUNG DI KABUPATEN KARANGASEM A.A Diah Parami Dewi; Mayun Nadiasa; Putu Eka Erly Savitri
Jurnal Ilmiah Teknik Sipil Jurnal Ilmiah Teknik Sipil, Vol. 23, No. 1, Januari 2019
Publisher : Department of Civil Engineering, Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (211.977 KB) | DOI: 10.24843/JITS.2019.v23.i01.p10

Abstract

Keterlambatan dalam penyelesaian proyek seringkali terjadi dan tidak dapat diprediksi sebelumnya. Keterlambatan tersebut sangat merugikan pihak-pihak terkait, baik kontraktor maupun pemilik proyek itu sendiri. Penelitian ini bertujuan untuk mengetahui faktor yang berpengaruh terhadap keterlambatan penyelesaian proyek gedung di Kabupaten Karangasem dan faktor-faktor dominan yang mempengaruhi keterlambatan. Metode pengambilan data dilakukan survei menggunakan kuesioner yang disebar kepada kontraktor yang berada di Kabupaten Karangasem dan terdaftar sebagai anggota BPC GAPENSI Karangasem. Pemilihan responden menggunakan metode sampling kuota yang meliputi 30 responden dari 14 kontraktor yang mengerjakan proyek gedung di Kabupaten Karangasem. Selanjutnya data hasil kuesioner dianalisis menggunakan analisis faktor. Hasil analisis data menunjukkan terdapat tujuh faktor yang menyebabkan terjadinya keterlambatan penyelesaian proyek gedung yang dilihat dari nilai persentase variannya. Faktor-faktor tersebut adalah faktor keterlambatan pembayaran dan shop drawing (22,275%), faktor ketidakjelasan spesifikasi dam ketersediaan material (15,144%), faktor ketersediaan tenaga kerja (11,368%), faktor perubahan perencanaan (8,311%), faktor perubahan dalam metode kerja (7,585%), faktor kelemahan dalam penjadwalan (5,538%) dan faktor kelemahan dalam pelaksanaan (4,905%). Berdasarkan nilai persentase varian yang terbesar, maka faktor keterlambatan pembayaran dan shop drawing merupakan faktor dominan dengan nilai persentase varian 22,275 %
IDENTIFIKASI RISIKO PADA PELAKSANAAN PEMBANGUNAN DENPASAR SEWERAGE DEVELOPMENT PROJECT (DSDP) DI DENPASAR I Gusti Ngurah Oka Suputra; I Nyoman Norken; I Gusti Agung Adnyana Putera
Jurnal Ilmiah Teknik Sipil Vol. 9, No. 2 Juli 2005
Publisher : Department of Civil Engineering, Udayana University

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Abstract

Waste water which is produced by population of Denpasar City has notbeen managed properly, therefore it will potentially contaminate the environment. Inorder to solve this problem, the Government of Denpasar City has been granted loanby the Japan Bank for International Corporation (JBIC), and has been use for thedevelopment of sewerage system called Denpasar Sewerage Development Project(DSDP).During construction phase that has been executed, variety of risk was found which ispotentially obstruct project implementation, and even cancel part of the project. Thestudy is presented to identify risk comprehensively, through brain storming andstructured interviews. As result, the risk have been identified 74 (seventy four) risk,which include risk souces of 5 (6,76%) unacceptable risk, 17 (22,97%) undesirablerisk, 22 (29,73%) acceptable risk, and 30 (40,54%) negligible risk.Unacceptable andundesirable risk which considered as major risk come from political risk 1 risk(4,65%), environmental risk 6 risk (27,27%), planning risk 1 risk (4,55%), economical risk 1 risk (4,55%), financial risk 1 risk (4,55%), project risk 8 risk (36,36%),technical risk 2 risk (9,09%), and others 2 risk (9,09%) are include on human risk.The results show that risk sources of environmental and project risk are dominant, andshould be handled specially by the stakeholder who responsible to this project.
EFEK PENAMBAHAN DINDING GESER ATAU PERIMETER BEAMS TERHADAP PERILAKU DINAMIS STRUKTUR PELAT DATAR EMPAT TINGKAT I Ketut Sudarsana; Ida Bagus Dharma Giri; I Gede Gegiranang Wiryadi
Jurnal Ilmiah Teknik Sipil Jurnal Ilmiah Teknik Sipil, Vol. 18, No. 1, Januari 2014
Publisher : Department of Civil Engineering, Udayana University

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Abstract

Flat plate structural system is a plate structural system that supported directly by columns without column heads or drop panels. The advantages of this system are distance between the floors can be shortened, faster construction, ease of architectural work and installation of Mechanical, Electrical and Plumbing Equipment (MEP). However, this system has a weakness on the join (connection of slab-column) that is too flexible and susceptible to punching shear failure especially when the existence of moment due to earthquake. This study investigates the changes on dynamic behaviors of flat plate structures when it is added lateral stiffeners such as shear walls or perimeter beams in terms of its natural period, base shear force, floor displacement, and a change on the forces of the structural elements. The structure of the building being simulated is regular structure consisting of 4 floors with 3 meter floor to floor space and 4 spans along X axis direction (Lx = 6 m) and 3 spans along Y axis direction (Ly = 5 m). The building is a hotel, which stands on medium soil in Bali Provice. Flat plate structures with additional of shear walls or perimeter beam are designed in accordance with the requirements of SNI 03-2847-2002. Analyses were performed in three dimensions (3D) using commercial software SAP2000 v15, where the three structure models have the same property namelyplate thickness, column dimensions, mass and material properties. Dynamic behaviorsare studied based on time history analysis (integration time step) according to the average acceleration method from Newmark with acceleration record of the El-Centro earthquake 1940. Analysis shows that addition of shear walls or perimeter beam causes the natural period of structure and horizontal displacement decrease, while the base shear force and structural rigidity increase. Moments, shear forces on columns and shear forces on the plate around the column decrease with the addition of shear walls. The addition of perimeter beam increases the moments and shear forces on first floor columns and shear forces on the plate around the column decrease dramatically on the edge columns
ANALISIS PENGARUH KONFIGURASI TULANGAN TERHADAP KEKUATAN DAN DAKTILITAS KOLOM BETON BERTULANG I K. Sudarsana
Jurnal Ilmiah Teknik Sipil Vol. 14, No. 1 Januari 2010
Publisher : Department of Civil Engineering, Udayana University

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Abstract

Column is one of important structural elements to ensure that thestructure will not suffer progressive collapse. In earthquake resistant design,column must have an adequate strength and ductility to provide ductile behavior todesipate earthquake forces on the structure. Strength and ductility of columnsdepend on many factors such as reinforcement arrangements. This analysis is doneto investigate the effect of longitudinal dan transversal reinforcement arrangementon strength and ductility of reinforced concrete columns. Two groups of 4 specimens each, total 8 column sections were analized both withand without considering concrete confinement. In this analysis, stress-strainconcrete model for unconfined concrete follows Honestaad Model (1951) and forconfined concrete model follows Razvi and Saatcioglu Model (1999). Stress-strainof reinforcement is assumed to be a bilinear relationship. In the analysis ofdisplacement ductility, the column height was taken of 3.5 meter behaving doublecurvature.Comparison of the results shows that for constant longitudinal reinforcement ratio(rl), arrangements of longitudinal bars distributed uniformly along the columnsides has no significant effect on strength and ductility of the column section bothfor unconfined and confined section analysis.Hoop configuration gives an increase in strength (Mn), curvature ductility (?j) anddisplacement ductility (?D) on average about 1.2%, 2.3% and 1.83% if they areanalyzed without considering confinement effects. However, the increase in thoseparameters is about 1.2%, 12%, 9.4% for strength (Mn), curvature ductility (?j) anddisplacement ductility (?D) if considering the effects of confinement.In general, the effect of hoop confinement on column section can increase incolumn strength and ductility on average of 0.25%, 158% and 98% respectively forstrength, curvature and displacement ductilities.

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