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MEDIA KOMUNIKASI TEKNIK SIPIL

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Published by Universitas Diponegoro

ISSN : 08541809 EISSN : 25496778 DOI : -

Core Subject : Engineering,

Civil Engineering, Building, Construction & Architecture

Media Komunikasi Teknik Sipil (ISSN 0854-1809) published twice in a year, in July and December. The article can be product of researches, scientific thoughts or case study, in civil engineering and isnâ€™t formed by politics, commercialism, and subjectivity unsure. This scientific journal contains articles of thought and research results in Civil Engineering that have never been published in scientific journals or other media.

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Articles 9 Documents

Search results for , issue "Volume 14, Nomor 3, Edisi XXXVI, OKTOBER 2006" : 9 Documents clear

Badan Akreditasi Nasional Industri Konstruksi Suatu Kebutuhan Wibowo, Muhammad Agung; Hadihardaja, Joetata
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 14, Nomor 3, Edisi XXXVI, OKTOBER 2006
Publisher : Department of Civil Engineering, Diponegoro University

The construction industry has a significant role to the contribution of the development both in developed and developing countries.Â The importance of the industry is not only in its product but also in the scale of the industry, its share in the national economy and how it affects society. Moreover, construction products, such as roads, bridges, railways, irrigation, schools, hospitals, dwellings, offices and factories are an important element in the economy and in improving living standards. An important issu of the construction industri in developing countries is to improve the quality of the industry due regard to social, envronment and sustainability aspect.Â One of the alternative solution is to develop a Construction Industry Development Board (CIDB).Â However, the detailed way in which all of aspects in the CIDB interact is not well understood.Â This paper presents a possible system of CIDB model by using a prototype model from National Accreditation Body of Higher Education System.Keywords: construction industry development, government, CIDBPermalink: http://www.ejournal.undip.ac.id/index.php/mkts/article/view/3953[How to cite: Wibowo, M.A. dan Hadihardaja, J., 2006, Badan Akreditasi Nasional Industri Konstruksi Suatu Kebutuhan, Jurnal Media Komunikasi Teknik Sipil, Volume 14, Nomor 3, pp. 277-286]

Kajian Metode Analisis Gelombang Seismik Permukaan (SASW) untuk Pengembangan Teknik Evaluasi Perkerasan Lentur dan Kaku di Indonesia Rosyidi, Sri Atmaja P.
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 14, Nomor 3, Edisi XXXVI, OKTOBER 2006
Publisher : Department of Civil Engineering, Diponegoro University

The need of accurate, cost-effective, fast and non-destructive evaluation of Indonesian pavement system is becoming ever important because the rehabilitation and management of roads is becoming increasingly difficult due to the increasing number of aging roads and limited budgets. An important feature of quality assessment of a pavement management system is the ability to determine the current condition and to predict future condition of the pavement. In order to establish the structural capacity of the existing roads, accurate information of the layer elastic moduli and thicknesses are needed. The aim of this paper is to describe the potential technique of the Spectral Analysis of Surface Wave (SASW) method for assessing the dynamic stiffness of constructed pavements. The SASW is a non-destructive in situ seismic technique which is based on the dispersion phenomena of Rayleigh waves in layered media. A set of transient impact source is used to generate Rayleigh wave energy that propagates horizontally near the surface layer of the pavement. Through two vertical accelerometers, the motion of the wave at the range of each frequency is recorded. The phases differences from the cross-power spectrum is then unwrapped and the dispersion curve of the phase wave velocity versus wavelength are then generated. An inversion process is iteratively employed to confirm the experimental dispersion curve from the theoretical model established. The SASW field test in this study was utilized to collect data on flexible and rigid pavement. The wave velocity profiles had shown that the SASW method is able to detect all the distinct layers of pavement units. The dynamic elastic modulus of obtained were found to be useful in the assessment of Indonesian pavement system.Keywords: SASW, dynamic stiffness, flexible and rigid pavement systemPermalink: http://www.ejournal.undip.ac.id/index.php/mkts/article/view/3949[How to cite: Rosyidi, S.A.P, 2006, Kajian Metode Analisis Gelombang Seismik Permukaan (SASW) untuk Pengembangan Teknik Evaluasi Perkerasan Lentur dan Kaku di Indonesia, Jurnal Media Komunikasi Teknik Sipil, Volume 14, Nomor 3, pp. 224-239]Â

Evaluasi Fungsi Halte sebagai Tempat Henti Angkutan Umum Studi Kasus Rute Terboyo-Pudakpayung, Semarang Basuki, Kami Hari
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 14, Nomor 3, Edisi XXXVI, OKTOBER 2006
Publisher : Department of Civil Engineering, Diponegoro University

The aim of this study is Bus-stop evaluation at Terboyo - Pudakpayung Corridor for Public Transport line in Semarang City, Indonesia. Evaluation in this study includes bus-stop conditions, convenient level and bus-stop placement. Methodology in this study was improved on two approaches that activity system approach and government policy approach. Point of view in the study was based on user and operator opinions. Bus-Stop condition was observed and analyzed comparing with regulation products.Â According to the analysis, the study was found any bus-stop in low level of services. It can explain because there are long distance between bus-stop, bad condition and dysfunctions. 31% User unused to bus-stop because it far from their home-based activity. Inconvenient bus-stop is shown 9% user opinions. The other hand, more then 51% bus operator pick up passengers from road side. It causing any friction in corridor and make traffic jam. Conclusion in this study is bus-stop at Terboyo-Pudakpayung Corridor in low level of service. There are any suggestions to solve the problem. Long distance between bus-stop is make inaccessible bus-stop, so it certain to build more bus-stop in Terboyo-Pudakpayung corridor. Public Transport information system is needed to improve public transport usage.Keywords: public transport, bus-stop, passengers, operatorPermalink: http://www.ejournal.undip.ac.id/index.php/mkts/article/view/3954[How to cite: Basuki, K.H., 2006, Evaluasi Fungsi Halte sebagai Tempat Henti Angkutan Umum Studi Kasus Rute Terboyo-Pudakpayung, Semarang, Jurnal Media Komunikasi Teknik Sipil, Volume 14, Nomor 3, pp. 287-296]

Perubahan Morfologi Kali Garang - Banjir Kanal Barat Tanpa Bendung Simongan (Pendekatan Model Simulasi BRI-STARS) Edhisono, Soetarto
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 14, Nomor 3, Edisi XXXVI, OKTOBER 2006
Publisher : Department of Civil Engineering, Diponegoro University

The changing of land-use on the upper Simongan Weir causes the increasing of flood discharge. It was shown during flood that occured on January 1990, which in that time flood water overtopped of the dikes and caused dikes collapsed in some places and flood was ocurred around Simongan area. This research wasÂ made because there wasÂ a plan to change the Simongan Weir into barrage, in order to make flood water level ofÂ the Garang RiverÂ lower during flood. The crest of the Simongan Fixed Weir would be cutted in 3.7 m heightÂ in order to make flood water level lower, and to keep the water level remain the same during normal condition, some gates would be installed above the cutted weir crest as barrages. This situation would change river morphology of the Garang River andÂ West Flood Way. This paper was contained simulation resultÂ ofÂ the changing of river morphology of the Garang River and West Flood Way without Simongan Weir by using BRI-STARS ( BRIdge Stream Tube model for Alluvial River Simulations ) software. This simulation model generatedÂ semi-two dimensional waterÂ flows and its sediment which capabled to compute scouring and silting on sub-critical, super critical flows and combination of these both flows conditions.Keywords:Â weir, barrage, morphology, scouring, siltationPermalink: http://www.ejournal.undip.ac.id/index.php/mkts/article/view/3950[How to cite: Edhisono, S., 2006, Perubahan Morfologi Kali Garang - Banjir Kanal Barat Tanpa Bendung Simongan (Pendekatan Model SimulasiÂ BRI-STARS), Jurnal Media Komunikasi Teknik Sipil, Volume 14, Nomor 3, pp. 240-250]

Implementasi Algoritma Genetik pada Optimasi Bentuk dan Ukuran Bukaan Pada Balok Baja Profil I dengan Bukaan Cellular Suharjanto, Suharjanto
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 14, Nomor 3, Edisi XXXVI, OKTOBER 2006
Publisher : Department of Civil Engineering, Diponegoro University

Cellular beam are generally fabricated from I- steel beam that are butt weldedÂ and cut to the required web-opening by multiple flame cutting. Various shapes,sizes and locations of openings may be used in the web of cellular beam. The opening may be circular, elongated circular. Some opimisation may be possible in order to gain the maximum utilization of steel from one standard I- steel beamÂ dimension, allowing small losses due to cutting operation. In many ways, genetic algorithms, and the extension of genetic programming, offer an outstanding combination of flexibility, robustness, and simplicity. The following discussion highlights some of the key features of genetic algorithms (GAs), and illustrates an application of a particular GA in the search and estimation of global optima. Optimization may take the form of a minimization or maximization procedure. Throughout this article, optimization will refer to maximize web-opening wHile increasingthe strength and stiffness. The preference for maximization is simply intuitive: Genetic algorithms are based on evolutionary processes and Darwin's concept of natural selection. In a GA context, the objective function is usually referred to as a fitness function, and the phrase survival of the fittest implies a maximization procedure. Keywords: cellular beam, Genetic Algoritm, optimization, web- opening ABSTRAK Balok selulair umumnya terfabrikasi dari balok baja profil I yang dipotong dan dilas dan system pemotongan membentuk bukaan pada badan profil dengan bentuk sel atau lingkaran yang diinginkan. Berbagai variasiÂ bentuk, ukuran dan lokasi bukaan bisa digunakan pada badan profil balok selulair ini. Bentuk bukaan bisa lingkaran maupun lingkaran yang diperlebar maupun diperpanjang. Beberapa optimasi mungkin bisa digunakan agar mendapatkan pemanfaatan secara maksimal dari dimensi standar balok baja berprofil I, sehingga menghasilkan kerugian (kehilangan bahan) yang sekecil mungkin akibat operasi pemotongan. Dalam banyak hal, Algoritma Genetik, dan pengembangannya, mengemukakan kombinasi antara fleksibilitas, ketahanan dan kesederhanaan. Pembahasan berikut mengutamakan beberapa fitur kunci dari Algorima Genetik, dan merngilustrasikan suatu aplikasi dari kekhususan Algoritma Genetik dalam mencari dan meng-estimasi nilai optima global. Optimasi bisa mengambil berupa prosedur maksimalisasi atau minimalisasi. Dalam artikel ini, optimisasi akan me-maksimalisasi bukaan badan sambil meningkatkan kekuatan dan kekakuan. Pilihan me-maksimalisasi adalah: Algortima Genetik didasarkan pada proses evolusi dan konsep seleksi alami dari Darwin. Dalam konteks Algoritma Genetik, fungsi tujuan biasanya disebut dengan fungsi fitness, dan istilah survival dari nilai paling fit menunjukkan prosedur maksimalisasi.Kata kunci: balok selulair, Algoritma Genetik, optimisasi, bukaan-badanPermalink: http://www.ejournal.undip.ac.id/index.php/mkts/article/view/3955[How to cite: Suharjanto, 2006, Implementasi Algoritma Genetik pada Optimasi Bentuk dan Ukuran Bukaan Pada Balok Baja Profil I dengan Bukaan Cellular, Jurnal Media Komunikasi Teknik Sipil, Volume 14, Nomor 3, pp. 297-308]

Pendugaan Instrusi Air Laut di Sungai Salamun Salamun
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 14, Nomor 3, Edisi XXXVI, OKTOBER 2006
Publisher : Department of Civil Engineering, Diponegoro University

Estuary is mixing of salt water and fresh water. Therefore Estuary is interisting object to investigation by researcher. Estuary Phenomenon of hydraulic Estuary was dynamic so this research to use numerical model. This model can to be used forecasting for salinity intrution on Estuary or River. Set up model numerical for several variation of Estuary cross section, discharge and tides. Which Saint Venant equation especially on continuity and momentum equation whice is shown water surface (tides) and discharge flow in the river. The result computation then be coupled with the result of dispertion equation. Stability of the scheme was checked with Courant Number and Peclet Number. This Model was verification with electric conductivity (EC).Keywords: tides, dischargePermalink: http://www.ejournal.undip.ac.id/index.php/mkts/article/view/3951[How to cite: Salamun, 2006, Pendugaan Instrusi Air Laut di Sungai, Jurnal Media Komunikasi Teknik Sipil, Volume 14, Nomor 3, pp. 251-259]

Kinerja Pemberlakuan Standar Mutu Perkerasan pada Peningkatan dan Pemeliharaan Jalan Nasional â€“ Propinsi Mulyono, Agus Taufik
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 14, Nomor 3, Edisi XXXVI, OKTOBER 2006
Publisher : Department of Civil Engineering, Diponegoro University

National and provincial road networks are a part of transportation infrastructure having very significant role for improving economic condition of a region due to its potential for providing wider mobility and higher accessibility between nodes in the region than district road networks. Consequently, the development of national and provincial roads should be based on tight implementation of quality standard for achieving stable road pavement. However, in current practices, there are evidences indicating no correlation between increased investment on national and provincial roads with the improved road quality in various regions though the road development uses an identical standard of quality manual. It is, therefore, very important to study performance of the quality manual standard implementation on road maintenance and betterment. The objectives of the research are to identify underlying problems and inappropriate practices of implementation procedure of pavement quality standard and to understand root causes of road deterioration occurred before the expected period of its life service. The research used a questionnaire survey completed objectively by respondents as with their expertise and experiences on road engineering. The respondents consist of 251 practitioners and experts selected through purposive method from 28 provinces representing the government staff of Public Work Department, supervision and consulting engineers, contractors and academic staff of universities. Furthermore, the questionnaires were compiled and analyzed by using descriptive statistical method. Findings of the research show that the underlying problems of the implementation of quality manual standards are predominated by low quality of human resources, inadequate utilization of testing instrument, and insufficient understanding of quality standards as well as poor coordination between implementation and supervision institutions. The substandard quality of road pavement mainly occurred due to low quality of the materials, inappropriate method of quality testing, improper construction method and insufficient field supervision. It was found that pavement deterioration in the beginning of road operation period is not caused by overloaded traffic but mainly due to inappropriate implementation of quality standards. This is regarded as no proper socialization of quality standards by government institutions for engineers, contractors and supervisors and their understanding on the road development is only focused on contract documents. Keywords: quality standard, implementation, road pavement, road maintenance, road betterment ABSTRAK Penanganan jalan nasional dan propinsi tidak terlepas dari penerapan standar mutu untuk mencapai kualitas perkerasan jalan yang mantap. Jalan nasional dan propinsi memiliki peranan yang amat penting terhadap peningkatan ekonomi wilayah karena berfungsi menyediakan mobilitas dan aksesibilitas antar simpul wilayah yang lebih luas daripada jalan kabupaten. Pada saat ini,Â fakta mengindikasikan tidak adanya korelasi antara peningkatan investasi penanganan jalan nasional dan propinsi dengan peningkatan kemantapan perkerasan jalan meskipun standar mutu perkerasan yang digunakan sama, sehingga perlu dilakukan penelitian kinerja pemberlakuan standar mutu perkerasan pada peningkatan dan pemeliharaan jalan. Tujuan penelitian adalah mendeskripsiskan kendala dan penyimpangan pemberlakuan standar mutu perkerasan jalan serta penyebab kerusakan jalan yang sering terjadi di bawah umur pelayanan. Instrumen penelitian berupa formulir survai (kuesioner) yang harus diisi secara obyektif dengan memepertimbangkan kepakaran dan pengalaman respondenÂ di bidang teknik jalan. Responden terdiri dari para pakar (expert) yang ditentukan secara purposive yang tersebar di 28 propinsi pada instansi kantor P2JJ dan litbang, kantor dinas pekerjaan umum, konsultan supervisi, kontraktor dan perguruan tinggi. Selanjutnya data terkumpul dikompilasi dan dianalisis secara statistik deskriptif. Jumlah responden (pakar) yang mengisi formulir survai sebanyak 251 orang. Hasil penelitian menunjukkan bahwa kendala implementasi standar mutu didominasi oleh kekurangan kualitas SDM, keterbatasan utilisasi alat uji, kesulitan memahami substansi standar mutu, dan lemahnya koordinasi antara pelaksana pekerjaan dan pengawas mutu. Selain itu disimpulkan penyimpangan mutu perkerasan yang sering terjadi adalah: (i) mutu material kurang tepat; (ii) metode pengujian mutu kurang tepat; dan (iii) prosedur implementasi metode pelaksanaan dan pengawasan di lapangan tidak tepat. Penyebab kerusakan perkerasan jalan pada awal operasional, tidak semata-mata disebabkan oleh kendaraan overloading tetapi lebih didominasi tidak tercapainya pemberlakuan (implementasi) standar mutu yang tepat di lapangan. Permasalahan lainnya adalah kurangnya sosialisasi standar mutu yang dilakukan oleh instansi pembina terhadap pelaksana dan pengawas mutu di daerah dan pemahaman mereka terbatas pada dokumen kontrak.Kata kunci: standar mutu, pemberlakuan, perkerasan jalan, pemeliharaan jalan, peningkatan jalanPermalink: http://www.ejournal.undip.ac.id/index.php/mkts/article/view/3956[How to cite: Mulyono, A.T., 2006, Kinerja Pemberlakuan Standar Mutu Perkerasan pada Peningkatan dan Pemeliharaan Jalan Nasional â€“ Propinsi, Jurnal Media Komunikasi Teknik Sipil, Volume 14, Nomor 3, pp. 309-328]

Kajian Model Angkutan Sedimen pada DAS Serayu Berdasarkan Model Matematik 1 Dimensi Kusuma, M. Syahril Badri; Salim, Hang Tuah; Gusman, Aditya Riadi
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 14, Nomor 3, Edisi XXXVI, OKTOBER 2006
Publisher : Department of Civil Engineering, Diponegoro University

This paper present comparisonÂ study of several mathematical model for sediment transport, e.g. Yang (1973), Ackers-White (1973), Madden (1963), Vanony-Duboys (1975), Schocklitsh-Toffaleti (1966), Meyer-Peter-Muller (1948) dan Colby (1964). The study was supported by 1 dimensional mathematical model named HEC6. Model Calibration and verification were done by using field data measurement that was taken at Mrica Reservoir in 1992-1993 and 2002-2003. Based on this study, it is found that the best assessment for the sedimentation process in the upstream of the reservoir is shown by Yang model (1973), meanwhile the best assessment for the sedimentation process in the downstream of the reservoir is shown by Colby model (1964).Keywords: sediment transport, one dimension mathematical model, Serayu riverPermalink: http://www.ejournal.undip.ac.id/index.php/mkts/article/view/3952[How to cite: Kusuma, M.S.B., Salim, H.T. dan Gusman, A.R., 2006, Kajian Model Angkutan Sedimen pada DAS Serayu Berdasarkan Model Matematik 1 Dimensi, Jurnal Media Komunikasi Teknik Sipil, Volume 14, Nomor 3, pp. 260-276]

Variasi Kadar Aspal pada Perkerasan Lentur Diperkuat dengan Geosintetik Nugroho, Soewignjo Agus
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 14, Nomor 3, Edisi XXXVI, OKTOBER 2006
Publisher : Department of Civil Engineering, Diponegoro University

Reflection crack is one type of road crack. Repairing is usually done by overlay. This research examine role of geosintetic as reinforcement in overlay of flexible pavement. This research is done by making a beams model made of aggregate and asphalt, representing flexible pavement. Models are tested with cyclic loads. Observation is focused on the influence of asphalt content to the rate of crack propagation. Results shows that geosintetics reduced rate of crack propagation, while optimum asphalt content still should be used in design. Keywords: geosintetics, overlay, reflection crack, rate of crack propagationPermalink: http://www.ejournal.undip.ac.id/index.php/mkts/article/view/3948[How to cite: Nugroho, S.A., 2006, Variasi Kadar Aspal pada Perkerasan Lentur Diperkuat dengan Geosintetik, Jurnal Media Komunikasi Teknik Sipil, Volume 14, Nomor 3, pp. 213-223]

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