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Prokons: Jurnal Teknik Sipil
Published by Politeknik Negeri Malang
ISSN : 19781784     EISSN : 27148815     DOI : -
Core Subject : Science, Engineering,
Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Materials Science & Nanotechnology
Jurnal Teknik Sipil (PROKONS), Terbit dua kali dalam setahun. PROKONS menerbitkan artikel penelitian yaitu penelitian asli teoretis dan eksperimental yang mengeksplorasi atau mengeksploitasi ide-ide dan teknik baru di empat bidang utama: teknik struktural, geomekanik, manajemen proyek konstruksi dan teknik transportasi. Tujuan jurnal ini adalah untuk memajukan ilmu pengetahuan yang berkaitan dengan teknik sipil dan berfokus pada bangunan, infrastruktur, sistem jembatan serta pemasangannya atau konstruksi.
Arjuna Subject : Teknik (semua kategori) - Teknik Sipil dan Struktur
Articles 202 Documents
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Pengaruh Perkuatan Pelat Transversal pada Profil Siku Tunggal terhadap Kuat Aksial Tekan Muljo, Adi
Prokons: Jurnal Teknik Sipil Vol. 6 No. 1 Februari 2012
Publisher : Jurusan Teknik Sipil, Politeknik Negeri Malang

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Abstract

EVALUASI PENGENDALIAN PELAKSANAAN DAN PENJADWALAN PROYEK PERPIPAAN DI KOTA MALANG Adiman Fariyadin, M. Ruslin Anwar, Indradi Wijatmiko
Prokons: Jurnal Teknik Sipil Vol. 10 No. 1 February 2016
Publisher : Jurusan Teknik Sipil, Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/prokons.v10i1.100

Abstract

The construction project is a series of activities carried out only one time and is generally short-term. In a series of activities, there is a process that is processing the project resources becoming an activity results in the form of the building. The process that occurs in a series of these activities would involve related parties, either directly or indirectly. The definition of project management according to Ervianto (2005) is all the planning, execution, control and coordination of a project from the beginning (the idea) to berakhirya project to ensure the timely implementation of the project, right cost and right quality. The results of the analysis of cost control, time and resources on a pipeline project Malang using Earned Value indicates delays in the work on the planned time, but the cost is still below the budgeted costs or in other words, the project did not suffer losses, the project can be completed by the time work 20 weeks or later 42 days from the planned time and 12 days later than the time of realization. While the lower cost Rp. 398,159,830 of the budgeted costs. The results of the project's working time scheduling with Repetitive scheduling method that the project can be completed on day 62 or 16 days sooner than the planned time.Keywords: Repetitive scheduling Method, Evaluation Control, Scheduling, Earned Value
UPAYA PENINGKATAN PROFESIONALISME MANAJER PROYEK KONSTRUKSI BANGUNAN GEDUNG DI KOTA MALANG Devi Zettyara, Alwafi Pujiraharjo, Eko Andi Suryo
Prokons: Jurnal Teknik Sipil Vol. 10 No. 1 February 2016
Publisher : Jurusan Teknik Sipil, Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/prokons.v10i1.101

Abstract

Profesionalisme manajer proyek adalah salah satu kunci kesuksesan proyek, yang menandakan bahwa suatu anggota tim seharusnya memiliki manajer proyek yang profesional, yang dapat diandalkan untuk memahami proyek yang dikerjakan. Berdasarkan penelitian terdahulu oleh Imran Oppier tahun 2012 di Makassar, terdapat 7 faktor yang mempengaruhi profesionalisme Manajer Proyek konstruksi gedung yaitu perencanaan, pengorganisasian, pengkoordinasian, kepemimpinan, pengendalian, pengembangan dan peningkatan, dan penetapan kebijakan. Penelitian ini akan meneliti pengaruh faktor-faktor tersebut terhadap profesionalisme manajer proyek konstruksi gedung di Kota Malang, faktor yang paling dominan dan yang kurang dominan, serta menentukan strategi untuk meningkatkannya. Pada penelitian ini, digunakan analisis regresi linear berganda dan analisis SWOT. Data analisis regresi linear berganda didapatkan dari kuisioner yang disebarkan kepada 75 pegawai di 5 perusahaan konstruksi golongan menengah ke atas yang sedang mengerjakan proyek konstruksi gedung di Kota Malang, sedangkan data analisis SWOT didapatkan dari hasil analisis regresi linear berganda dan wawancara dengan para Manajer Proyek  di tempat tersebut. Berdasarkan hasil analisis regresi berganda menunjukkan bahwa faktor yang berpengaruh secara simultan dan parsial hanya faktor kepemimpinan dan pengendalian. Pada analisis SWOT diambil faktor kepemimpinan sebagai kekuatan serta pengembangan dan peningkatan sebagai kelemahan, kemudian peluang dan ancaman didapatkan dari hasil wawancara dengan para Manajer Proyek, sehingga didapatkan beberapa strategi untuk meningkatkan  profesionalisme manajer proyek konstruksi gedung di Kota Malang.Kata kunci: faktor-faktor profesionalisme, manajer proyek konstruksi gedung, analisis regresi, linear berganda, analisis SWOT
PEMODELAN BANJIR DI DAS CILIWUNG MENGGUNAKAN MODEL HIDROLOGI TERDISTRIBUSI Ratih Indri Hapsari, Mohamad Zenurianto, Hari Kurnia Safitri, Agus Suhardono
Prokons: Jurnal Teknik Sipil Vol. 10 No. 1 February 2016
Publisher : Jurusan Teknik Sipil, Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/prokons.v10i1.102

Abstract

Jakarta, the capital and largest city in Indonesia, suffered severe flood year by year. The flooding was greatly contributed by high runoff in Ciliwung River, the main river flowing through Jakarta. In this paper, the attempt to simulate the flood in Ciliwung River using distributed hydrological model is presented. Precipitation reanalysis at spatial and temporal resolutions of one degree and one hour from Jaxa Global Rainfall Watch is used for evaluating the rainfall within the basin (376 km2). Understanding the characteristic of rainfall-runoff mechanisms is important as a lesson learnt for future flood disaster mitigation. The model used in this research is BTOPMC physically distributed hydrological model, which uses blockwise TOPMODEL for runoff generation and Muskingum-Cunge for routing. Terrain map of study area with 30 meters resolution is obtained from ASTER-GDEM. The runoff is simulated hourly in three points, i.e. Katulampa, Depok, and MT. Haryono, representing upstream, middle stream, and downstream outlets. Validation by comparison with observed discharge is done in both points. The results reveal that the model gives reasonable results in simulating flood events, showed by NSE and RMSE at Katulampa of 56.81% and 87.58 m3/s. This simulation is useful to estimate the amount and timing of flooding which is essential for further application in flood forecasting and disaster risk management. Some further improvements of the simulation scheme, including utilization of radar-rainfall, field survey, and future direction for flood forecasting and warning system development are also discussed.Keywords: Flood, Ciliwung, Jakarta, Hydrological Model
ALTERNATIF DESAIN SALURAN PEMBAWA PADA PERENCANAAN PEMBANGKIT LISTRIK TENAGA MIKRO HIDRO (PLTMH) DI DESA BENDOSARI KABUPATEN MALANG Harsanti, Moch. Khamim, Winda
Prokons: Jurnal Teknik Sipil Vol. 10 No. 1 February 2016
Publisher : Jurusan Teknik Sipil, Politeknik Negeri Malang

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Abstract

Electric energy is important requirement for human activities, and much of this energy is still filled by non renewable energy. In certain time, this source will deplet. To solve this problem, subtitution energy must be founded. Water is one of the renewable energy which can be substitution to produce electrical energy. Water from the water springs will be flowed to power house, before changing to electrical energy, through water way. The aim of this study is to determine alternative of water way. Discharge that is used on this study based on measurement. From those measurements, design discharge is determined by 0,3 m3/dt. The water way will be designed as open channel using eight alternatives, and will be chosen best alternative for recommendation. Keywords: design discharge, open channel, water way
STUDI IDENTIFIKASI DISTRIBUSI CENGKEH DENGAN DATA LANDSAT 8 DI KABUPATEN BULELENG BALI Yuliara ,
Prokons: Jurnal Teknik Sipil Vol. 10 No. 1 February 2016
Publisher : Jurusan Teknik Sipil, Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/prokons.v10i1.104

Abstract

Telah dilakukan penelitian mengenai sebaran atau distribusi dan luas vegetasi cengkeh (Syzygium Aromaticum) di Kabupaten Buleleng, Bali menggunakan metode penginderaan jauh. Citra penginderaan jauh yang dipakai adalah citra Landsat 8 yang dianalis melalui tingkat kehijauan/ indeks vegetasi. Klasifikasi berdasarkan NDVI menghasilkan overall accuracy 84,62 % dan NRVI dengan overall accuracy 85,16 % . Hasil identifikasi distribusi vegetasi cengkeh yang diperoleh dikelompokkan ke dalam 3 klas, yaitu jarang, sedang dan lebat. Luas vegetasi cengkeh yang diperoleh 10450,35 Ha berdasarkan indeks cengkeh NDVI dan 10346 Ha berdasarkan indeks cengkeh NRVI. AbstractHas done research on the distribution or wide distribution and vegetation clove (Syzygium aromaticum) in Buleleng, Bali using remote sensing methods. Remote sensing imagery used was Landsat 8 were analyzed by levels of greenery/ vegetation index. Classification based NDVI produce overall accuracy NRVI 84.62% and 85.16% to the overall accuracy. The identification results obtained clove of vegetation distribution are grouped into three classes, namely rare, medium and heavy. Extensive vegetation 10450.35 Ha cloves obtained by clove index NDVI and 10346 Ha based index NRVI cloves.Kata kunci: Identifikasi distribusi vegetasi cengkeh, penginderaan jauh, Citra Landsat 8, NDVI, NRVI
ANALISIS PERBANDINGAN KINERJA KONTRAKTOR ISO DAN NON ISO PADA PEKERJAAN BETON Prisma Sistia Putri, Indradi Wijatmiko, Eko Andi Suryo
Prokons: Jurnal Teknik Sipil Vol. 10 No. 1 February 2016
Publisher : Jurusan Teknik Sipil, Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/prokons.v10i1.105

Abstract

Abstract ISO in the construction sector guarantees the company implements Quality Management System (QMS) consistently. But in reality, not all contractors in Indonesia have certificate and implement QMS ISO. So it is necessary to carry out a comparative of the contractors performance, who are ISO and non ISO certified especially on concrete work as more than 60% of construction projects in Indonesia use concrete. Questionnaires and interview were conducted at the three ISO and three non ISO contractors to determine the differences performance on concrete work. MS Excel 2007, SPSS for Windows Version 22.0, and logistic regression were employed to process the data. SWOT analyses were employed to create the strategies to improve construction company performance associated with the implementation of QMS ISO 9001: 2008. The questionnaires and t test result showed a better perfomance by contractors who have certification of QMS ISO 9001:2008 for the concrete work on the variable of operational, human resources, quality of concrete products, and customers than those who have no ISO certification. Logistic regression showed that the variable of operational in positive significant trend on the contractors performance for concrete work associated with the implementation of QMS ISO 9001: 2008. SWOT analyses result in completion of work according to the procedures, speed in decision making, integrated documentation and communication systems, good relation with sub contractors as the strength. Human resources are less prepared to implement ISO, the performances were not relevant to the quality target, and rework as the weaknesses. Customers and operating environment as the opportunities. Competitors and lack of government support as the threats.Keywords: QMS ISO 9001:2008, performance of ISO and non ISO contractors, logistic regression, SWOT.
PERILAKU GEMPA AKIBAT PENGARUH PERGERAKAN TANAH DAN PERGERAKAN PATAHAN PADA JEMBATAN RANGKA PELENGKUNG Evi Nur Cahya
Prokons: Jurnal Teknik Sipil Vol. 10 No. 1 February 2016
Publisher : Jurusan Teknik Sipil, Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/prokons.v10i1.106

Abstract

Studi ini membahas tentang analisis respon dinamik perilaku gempa pada jembatan rangka pelengkung sebagai akibat dari pengaruh pergerakan tanah dan patahan. Data gempa didapat dari integral waktu gelombang respon percepatan gempa Jiji Taiwan pada tahun 1999 yang kemudian diaplikasikan kepada struktur jembatan rangka pelengkung untuk diteliti perilaku responsnya.Analisis respons dinamik dibuat menggunakan gerakan tanah pada saat gempa pada arah transversal dan longitudinal, bersamaan dengan pergerakan patahan pada arah vertical dan transversal, untuk meneliti perilaku gempa dari model jembatan baja pelengkung yang digunakan. Model analitis dengan sejarah waktu (time history) disimulasikan menggunakan model 3D dengan program ABAQUS.Berdasarkan hasil analisis, perilaku respons dari kedua kasus pada arah transversal dan longitudinal akibat akselerasi menunjukkan bentuk respons yang sedikit berbeda. Selain, itu juga ditemukan bahwa elemen struktur yang mengalami plastis berkumpul pertemuan antara rangka utama jembatan pelengkung dan girder pengakunya.Kata kunci: perilaku gempa, pergerakan tanah, pergerakan patahan (inland fault displacement), jembatan pelengkung rangka batang.
PENENTUAN NILAI KOEFISIEN PLASTISITAS PADA TANAH LEMPUNG DENGAN MENGGUNAKAN DATA PENGUJIAN ATTERBERG LIMIT Yunaefi ,
Prokons: Jurnal Teknik Sipil Vol. 10 No. 1 February 2016
Publisher : Jurusan Teknik Sipil, Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/prokons.v10i1.107

Abstract

Abstrak Untuk menjelaskan nilai plastisitas dari tanah berbutir halus dengan pengaruh kandungan air yang berbeda beda telah diperkenalkan oleh Clayton dan Jokes (1978) salah satunya dengan cara satu titik Cassagrande yang bertujuan untuk mempercepat waktu pengujian karena hanya dibutuhkan satu kali pengukuran nilai kadar air, dimana alat yang digunakan sama dengan pengujian standar. Untuk menentukan koefisien plastisitas (K) diperlukan koefisien tan b, yang dalam persamaan merupakan fungsi eksponensial. Hasil dari contoh yang diuji pada ruas jalan awal dan akhir yaitu sepanjang ruas jalan Padangan-Bojonegoro kilometer +STA 33-100 sampai dengan +STA 33-112 menunjukkan harga tanb sebesar 0.086.Dengan membandingkan hasil ini terhadap apa yang terdapat didalam literatur, antara lain British standard (0.092) dan ASTM (0121), dijumpai perbedaan dalam prosentase antara 7% sampai dengan 41%, meskipun hal ini tidak memberi pengaruh yang cukup berarti pada nilai akhir koefisien plastisitas K. Kata kunci: lempung plastisitas tinggi, kadar air, batas Atterberg. Abstact An alternative testing procedure by using the same apparatus has been suggested by Clayton and Jukes (1978), known as Casagrande one-point method is expected can be eliminate the time consuming process, and other drawbacks.This method provides a quick means of determining the liquid limit of a soil, because only one moisture content measurement is needed. To determine the factor (K), it is need first to calculate the coefficient tanb as an exponential function in proposed formulas.For the samples taken from several bore hole locations along the East outer ring road, started and finished from Bunderan Waru and Tanjung Perak (Surabaya) respectively, it can be concluded through this study, the coefficient tanb are 0.086. With compare the results to the literature reports, for British and American soils, the values of the coefficient tanb are 0.092 and 0.121 respectively. However the differences of this result to the literature reports is in the range of 7% to 41%, this not too much influence the final results of factor (K).Keyword: High plasticity clay, water content, Atterberg limit.
PENENTUAN CASH FLOW OPTIMAL BERBASIS PENGATURAN SUMBER DAYA PADA PEMBANGUNAN GEDUNG X DI KOTA MALANG Budi, Sitti Safiatus R., Agung Setia
Prokons: Jurnal Teknik Sipil Vol. 10 No. 1 February 2016
Publisher : Jurusan Teknik Sipil, Politeknik Negeri Malang

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Abstract

Frequently, financial problem can be an abstacle to a contractor when constructing and project. For that reason, financial management needs an optimum cash flow determination. How to determine an optimum cash flow of 2 floor building X Malang in the area of 8,521.91 m2?The writer proposes a resource-use-management-based optimum cash flow determination which employs various payment systems of ?start?, ?prorated?, and ?end? derived from cost, material, and work resources. Besides, resources are allocated for the schedule of implementation budget to be able to get maximum profit. Calculation analyses were carried out through trial and error method on 3 resource payment systems which were tried out 9 times each. They also employed an alternation of resource allocation, if the result of cash flow planning to schedule of the initial implementation of the budget plan does not achieve optimum results. First step in determination is to plan an appropriate schedule budget implementation plan. Then the schedule was put into varied resource payment systems to produce the project cost, from which cash flow was made.The determination results in no optimum cash flow from 27 payment system schemes. Consequently, resource allocation is in need in the implementation of budget plan schedule to get a maximum profit of IDR 8,001,066,721.41.Keyword: schedule, cash flow, payment systems, profit

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