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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 471 Documents

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OPTIMALISASI PENERAPAN SUMUR RESAPAN UNTUK MENURUNKAN DEBIT BANJIR Kurniani, Dwi; Suripin, Suripin
MEDIA KOMUNIKASI TEKNIK SIPIL Tahun 15, Nomor 2, JUNI 2007
Publisher : Department of Civil Engineering, Diponegoro University

The increasing demand for water supply has incresed groundwater pumping. On the other hand, the fast growing development has altered the pervious land surface of recharge area to impervious surface that reduces natural recharge. The groundwater is therefore inbalance the discharge greater than the recharge. As conssequence there is groundwater defisit, and the groundwater piezometric pressure goes down. The further impact of the lowering ground water is landsubsidence. The awareness towards the use of artificial recharge to augment ground water supplies have to be activated. Artificial recharge by using recharge wells is one of the possible measures to replenish an aquifer. The technology of recharge wells is generally well understood by both the technicians and the general population, and no special tools are needed to dig drainage wells. This research is aimed to determine and formulate the capacity of the recharge wells, both shallow and deep wells, by setting up a psysical model. The result indicated that depression curve of water table and/or piezometric pressure was logaritmic function both for shallow and deep wells. The capacity of the depends on the head, permeability, the aquifer thickness, and type of well. The capacity of the wall recharge well is higher than the last. The obtained formula gives the higher capacity value than that of dupuit. It may happen due to the deviation of the soil permeability between the measured and the actual in the test preparation

Pengkajian Penanganan Pemberian Air Irigasi di Petak Terisolir Ujung Saluran Irigasi pada Musim Kemarau Supadi, Supadi
MEDIA KOMUNIKASI TEKNIK SIPIL Tahun 17, Nomor 1, PEBRUARI 2009
Publisher : Department of Civil Engineering, Diponegoro University

Indonesia has two seasons namely rainy season and dry season. When dry season comes, farmers got the hardest hit by the limited amount of water, to where it becomes very valuable. There are two ways to solve the deficit of water during dry season. The first way is to carry out an appropriate water management, and the second one is to initiate the efficient use of water. There are other problem involving water irrigation distribution in areas that comprise several regencies, especially in down stream areas where shortage of supply of irrigation water happens. Thus, it is imperative to manage water resources and water irrigation distribution system. For example, farmer community has to hold a meeting to set a plan of water distribution. Distribution of irrigation water can be accurately determined using coefficient value of K. When K value is less than 0,50, distribution of irrigation water should be implemented using on-off (intermittent) system.Keywords: Dry season, Civilian, Farmers, Water managementPermalink: http://ejournal.undip.ac.id/index.php/mkts/article/view/3418[How to cite: Supadi (2009). Pengkajian Penanganan Pemberian Air Irigasi di Petak Terisolir Ujung Saluran Irigasi pada Musim Kemarau, Jurnal Media Komunikasi Teknik Sipil, 17 (1): 1-8]

KAJIAN ALTERNATIF PENGEMBANGAN SUMBER AIR BAKU UNTUK PULAU BINTAN BAGIAN BARAT Anwar, Saihul
MEDIA KOMUNIKASI TEKNIK SIPIL Tahun 17, Nomor 2, JUNI 2009
Publisher : Department of Civil Engineering, Diponegoro University

Bintan island is one of the big island in the Province of Kepri. The topographical condition of the Bintan is flat, which is difficult to convey water gravitate. Therefore the water management requires a storage. Fortunately some lakes were formed due to the boxit mining In Bintan. The lake area is about ofÂ 5 hectares and with 20 depth can be used as a storage forÂ water drinking and then distributes water using pump.Â There wereÂ two lakes identified as storage to fulfill water requirement for the west part of Bintan island. The total area of lakes is about 12 hectares and 20 m depth in average. Hydraulic structures, such as canal and water intake were design with method of â€œBernoulliâ€. Analysis showed that the two lakes can be operated with 1 million m3 live storage and will serve 40.000 of people. Hydrological analysis showed that the dry month were occurred on February, March, Augustus and September.Â Futher more those two lakes had potentially operated volume about 7 million m3 per year. As conclusion the two lakes can be used to fulfill the water requirement for the west part of Bintan Island. The location of water intake was proposed on Jago river and convey the water gravitate to the two identified lakes. Keywords: Bernoulli, Bintan Island ABSTRAK Pulau Bintan yang terletak di Propinsi Kepulauan Riau menghadapi kendala penyediaan air baku karena kondisi topografi Pulau Bintan relatif datar sehingga tidak memungkinkan pembuatan waduk yang dapat mengalirkan air secara gravitasi.Â Sedangkan pemanfaatan air permukaan atau air hujan harus ditampung untuk menjamin ketersediaan air setiap saat.Â Di P. Bintan terdapat beberapa danau buatan yang masing-masing luasnya dapat mencapai puluhan hektar dengan kedalaman mencapai 25 meter.Â Danau tersebut dapat dipergunakan untuk menampung air yang tentu pengalirannya ke pemukiman harus menggunakan pompa. Untuk merencanakan penampungan air yang paling memungkinkan ditinjau dari aspek teknis, e.konomis maka dilakukan penelitian dan perencanaan. Terdapat dua danau di P. Bintan bagian barat yang sangat sesuai untuk tampungan air untuk penyediaan air baku Kecamatan Bintan Utara. Kedua danau tersebut yang masing masing mempunyai luas masing masning lebih kurang 10 hektar dengan kedalaman 20 m dapat disuplai dari Sungai Jago. Metodologi perhitungan pengaliran air dari sungai Jago ke kedua danau tersebut dihitung menggunakan rumus hidrolika â€œBernoulliâ€. Hasil perhitungan menunjukan bahwa potensi kedua waduk tersebut dapat menampung lebih dari satu juta m3, yang dapat memenuhi kebutuhan air baku kecamatan Bintan Utara dengan penduduk sebanyak lebih kurang 40.000 jiwa, selama dua bulan kering yaitu bulan Februari, Maret, Agustus dan September. Hasil kajian juga menunjukkan bahwa potensi air dalam setahun lebih kurang sebesar 7 juta m3. Kesimpulan pemenuhan kebutuhan air baku untuk Pulau Bintan bagian barat dapat dipenuhi dengan memanfaatkan dua buah waduk untuk menampung air dari sungai Jago dan untuk mengalirkan air dari sungai Jago ke dua waduk tersebut dapat dilakukan dengan cara gravitasi. Kata kunci: Bernoulli, Pulau Bintan

Analisa Kekuatan Tahanan Lateral Pada Sistem Komposit LVL Kayu Sengon dan Beton Pracetak Tantisaputri, Intan Archita; Awaludin, Ali; Siswosukarto, Suprapto
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 25, Nomor 2, DESEMBER 2019
Publisher : Department of Civil Engineering, Diponegoro University

LVL Sengon and concrete can be used to form a composite structure of the floor system. Connections between LVL Sengon and concrete on this composite floor system are the weakest part so that a majority of structural damages are concentrated at these joints. This study discusses the lateral resistance of lag screw joints in a composite system of LVL Sengon and precast concrete. The lateral joint resistance was evaluated through quasi-static loading upon double shear test specimens having two screws at every single shear. Variation of the specimens includes precast concrete compressive strength of 20.71 MPa and 25.29 MPa, screw diameter of 6 mm length 101.6 mm and 8 mm length 101.6 mm and 127 mm, and angle of lag screw axis against the wood fiber of 60Â° and 90Â°. The result shows that lateral resistance of the test is greater than that of EYM, SNI, and EC5 predictions. Joint failure in this experiment is due to failure in wood fiber along with the occurrence of one up to two plastic hinges in the screw.

Percobaan Tarik-Langsung pada Beton Konvensional Han, Ay Lie; Narayudha, Moga; Sabdono, Parang
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 12, Nomor 3, Edisi XXX, OKTOBER 2004
Publisher : Department of Civil Engineering, Diponegoro University

Although the tensile strength of concrete does not plays a predominant role in the analysis and design of concrete structures, the knowledge of concrete behavior under tension is of value when estimating the load level under which cracking will occur. The relation between compression and tensile strength is developed based on experimental results and is represented as a formula highly depending on the tensile testing method in the laboratories.Â The Splitting Tensile Test and Flexural Strength Method are well know, while the Direct Tensile Test is relatively young, and its acknowledgement by ASTM under process.Â The experimental research conducted at the Concrete and Structural Laboratory, Diponegoro University, Semarang tries to give a better view to the Direct Tensile Test for concrete.Â This paper presents in brief, the indirect and direct testing methods, and evaluates the data obtained.Kata kunci : Kuat tarik beton, direct Tensile test, indirect test, kuat tekan betonPermalink: http://www.ejournal.undip.ac.id/index.php/mkts/article/view/3889[How to cite: Aylie, H., Narayudha, M., dan Sabdono, P., 2004, Percobaan Tarik-Langsung pada Beton Konvensional, Jurnal Media Komunikasi Teknik Sipil, Volume 12, Nomor 3, pp. 75-83]

Evaluasi Keberhasilan Program Air Minum dan Sanitasi (PAMSIMAS) di Kabupaten Tegal dan Kabupaten Brebes Kholiq, Abdul
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 20, Nomor 2, DESEMBER 2014
Publisher : Department of Civil Engineering, Diponegoro University

Water supply and sanitationis one of the community-based program launched by the government to hel praise public awareness in water supply and sanitation trouble shooting. This study aims to evaluate the success of the service and performance of community-based water management through PAMSIMAS Program. Goals and objectives to be achieved in this research isto measure people's satisfaction PAMSIMAS program in the village of Karang Mulya and Jejeg in Tegal regency, and village Cilibur and Bentar in Brebes regency with performance assessment regulation of reference by Kepmendagri No. 47, 1999th. Factors community satisfaction was measured by an assessment of the ability of the management of water levels, namely: 1. adequacy of water consumption, 2. continuity of water, 3. water quality, 4. handling technical complaint sand 5. the attitude of the governing body of the society officers. Another goal is to do a SWOT analysis for the formulation of a strategic planin order to be sustainable PAMSIMAS Program infulfillment of clean water.

Persamaan Pola Intensitas Hujan Fungsi dari Durasi dan Probabilitas Hujan untuk Kawasan Daerah Aliran Sungai (DAS) Bagian Hulu (Kasus Das Cimanuk - Jawa Barat) Rohmat, Dede; Soekarno, Indratmo
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 13, Nomor 3, Edisi XXXIII, OKTOBER 2005
Publisher : Department of Civil Engineering, Diponegoro University

The objective of this research is to find a rainfall intensity model in the form simple equation, but can be usage to predict rainfall intensity by both random rainfall duration and probability accurately.Â The final equation of rainfall intensity of the modeling result, have the form It,p=f(t,p).Â Prediction of rainfall intensity by both random rainfall duration (t; ours) and probability (p; %) can be conduct by an equation is that.Â The general equation of rainfall intensity as function both of t and p, formulated by substitution all of quantitative (constant) values byÂ Â a1, a2, b1, b2 notations as constants. Â At the all group of rainfall durations, the value of rainfall intensity of modeling result (It,p) with empirical (Ie) have a close value.Â The correlations value about 0.98 until 0.99.Â At the all group of times periods (T) of rainfall event, the value of It,p is valid.Â The rainfall intensity of modeling results closely with empirical data and have a pattern as same as others method pattern.Â By comparing with others method, correlations values It,p is best at T = 2; 3; 5; 7; and 15 years. At t > 4 ours, there is bigger deviation relatively between It,p than the calculation result of others method.Â That is occurring, because at the t mentioned the value of It,p is an extrapolation result. To implement the equation on others region, have need of a similar research in others region.Â That must be using the same of both base equation and technical analysis guidance.Keywords: Rainfall Equation, Rainfall Intensity, Rainfall Duration, Rainfall Probability, Upper WatershedPermalink: http://www.ejournal.undip.ac.id/index.php/mkts/article/view/3921[How to cite: Rohmat, D. dan Soekarno, I., 2005, Persamaan Pola Intensitas Hujan Fungsi dari Durasi dan Probabilitas Hujan untuk Kawasan Daerah Aliran Sungai (DAS) Bagian Hulu (Kasus Das Cimanuk - Jawa Barat), Jurnal Media Komunikasi Teknik Sipil, Volume 13, Nomor 3, pp. 48-66]

Kapasitas Lentur Balok Beton Tulangan Bambu Ori Takikan Jarak 20 dan 30 mm Budi, Agus Setiya; Rismunarsi, Endang; Kharir, Kharir
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 22, Nomor 2, DESEMBER 2016
Publisher : Department of Civil Engineering, Diponegoro University

Bamboo is one of the potential material as a substitute for steel reinforcement. This paper will discuss the flexural capacity of concrete beam with Ori bamboo reinforcement notch V type. The use of the notch is expected to minimize the effects of shrinkage and slip. This study uses laboratory experimental method. Bamboo is used at least 2.5 years old. Bamboo in a notch with a V-shape with the distance between the notch is 2 cm and 3 cm. The sample size used in the form of a concrete beam is 11x15x170 cm. The compressive strength of concrete (fcâ€™) used was 18.3 MPa, yield strength of bamboo (fyb) with nodia is 276.56 MPa, and a yield strength of steel (fys) is 486.6 MPa. Static loading is done with third point loading system. For comparison also tested steel reinforcement concrete beam with Ã˜-8 mm. Based on test results, the average value of flexural capacity test on a sample of concrete beams reinforced bamboo Ori V notches on the distance between the notch 20 mm is 0.412 tm, and the average value of flexural capacity on the distance between the notch 30 mm is 0.387 tm and the average value of flexural capacity of concrete beam test with steel reinforcement Ã˜-8 mm is 0.516 tm.

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]

Sifat Mekanis Beton Normal dengan Campuran Tepung Marmer Kushartomo, Widodo; Sari, Dewi Permata
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 24, Nomor 1, JULI 2018
Publisher : Department of Civil Engineering, Diponegoro University

This study is describe about the mechanical properties of normal concrete by adding of marble flour based on the mixed plan made. The compressive strength of the planned test object fc '20.0 and fc' 30.0 MPa was prepared by using the ACI method. The addition of marble flour in a concrete mixture varies from 0%, 5%, 10%, 15%, 20% and 25% to the weight of the cement used. Concrete test specimens were made in the form of cylinders 15.0 cm in diameter, 30.0 cm in height and made in the form of concrete beams measuring 15.0 cm x 15.0 cm x 75.0 cm, the type of mechanical testing performed in the form of compressive strength tests on cylindrical specimen, split tensile strength test on cylindrical specimen and flexure test on beam specimen. Curing is done by immersion technique at 25ÂºC and the test is done when the concrete is 28 days old. The test results show that the addition of marble flour to the normal concrete mixture can increase its mechanical properties by 26% for compressive strength, 24% for split tensile strength, and 17% for flexural strength.Â

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