Moga Narayudha
Departemen Teknik Sipil FT. UNDIP Jl. Prof. H. Soedarto SH., Tembalang, Semarang 50275

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Studi BRT Koridor Antar Kampus di Kota Semarang Qudus, Firdaus Amalul; Aditama, Putra; Ismiyati, Ismiyati; Narayudha, Moga
Wahana Teknik Sipil: Jurnal Pengembangan Teknik Sipil Vol 22, No 2 (2017): Wahana Teknik Sipil
Publisher : Politeknik Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32497/wahanats.v22i2.1165

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The public transportation in Semarang City which less of services and comfort made the students don?t use it. Based on the problem, it makes the idea of bus rapid transit Inter campuses created. Bus rapid transit expected to be a solution of the transportation needs of students and the other people around colleges, it also expected to make a communication Inter student colleges in Semarang City.The purposes of this study is to analyze the route of BRT, amount of BRT, bus stop, and the cost of BRT Inter campuses. quantitative approach metodology used to analyze the BRT performances dan qualitative approach for the people responses. The cost determine with component analyze method. From the result of the study of bus rapid transit inter colleges the length of route 36 km, and passes 21 colleges obtained. The cost simulated with comparison number of passengers. The calculation cost of bus rapid transit Rp 2.633,994 is about to loss if 70% of passengers is common passengers. For common passengers the cost is Rp 3.500 and 1.000 for school student passengers. The Government should provide feeder for the unserved collegeKata kunci : transportation, bus rapid transit, route, cost
INVESTIGASI NON DESTRUKTIF DENGAN PROFOMETER Hariwarsianto, Hariwarsianto; Narayudha, Moga
TEKNIK Volume 29, Nomor 3, Tahun 2008
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (683.815 KB) | DOI: 10.14710/teknik.v29i3.1963

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Concrete structures obtain their strength and load carrying capacity from the compatibility of concrete’scompression capacity and steel’s tensile strength. When a structure is in service, the concretecompression strength can easily be measured with all kinds of equipment, both non destructive, semi anddestructive.While the methods of analysis concrete in existing buildings is fairly straight forward and widely known,the determination of reinforcement embedded in the concrete is a more complicated matter. Beside thesteel’s tensile strength, the bar’s configuration is very important, since the load carrying capacity isdepending on it. One destructive method is to un-mantle the bars and observes and measures the sizesand configuration manually. This will involve not only skilled labor but is time consuming and costly.One technology to overcome these difficulties is the use of rebar locators. The measuring method is basedon the eddy-current principle with pulse-induction. Important data as concrete cover, bar configurationand bar size can be obtained. This paper will discuss the principles of rebar locators, and will include acase study where structural capacity is calculated based on non destructive testing
BENDING OF REINFORCING BARS TESTING METHOD AND INFLUENCE ON STRUCTURES Warsianto, Hari; Narayudha, Moga
TEKNIK Volume 30, Nomor 2, Tahun 2009
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (705.83 KB) | DOI: 10.14710/teknik.v30i2.1867

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Reinforcing bars in concrete elements functions as the component carrying tensile stresses after concretecracking. This is due to that fact that concrete exhibit very high compression strength combined with avery low tensile capacity. The tensile stressed are transferred to the bars by the bond between thereinforcement and the concrete.Bars are generally produced in strands 6 to 12 meter in length so that bending for transportation andhandling purposes becomes necessary. At the site bars are straightened, and then sometimes re-bent forassembling purposes. This process will result in a loading and re-loading of steel.The ASTM E-290 mandated that bars have to pass the bending test, whereas reinforcing steel bars arebend to almost 1800 to ensure material ductility. In the past five years the Construction and MaterialLaboratory, Diponegoro University has been questioned with the issue as to how far this bending andstraightening influences the quality and what the significance of testing is.This paper will evaluate theinfluence of bending and straightening and the testing procedure involved.
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

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (271.942 KB) | DOI: 10.14710/mkts.v12i3.3889

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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.  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.  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.  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]
Waktu Ikat Adukan Beton dengan Pocket Penetrometer serta Korelasinya terhadap Nilai Slump Narayudha, Moga; Han, Ay Lie
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 13, Nomor 3, Edisi XXXIII, OKTOBER 2005
Publisher : Department of Civil Engineering, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (255.204 KB) | DOI: 10.14710/mkts.v13i3.3922

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Workability of concrete mixtures has direct impact to placing, compaction and density of hardened concrete.  To date the concrete industry has mandated the slump-value obtained by the Abrams-Harder method as the standard for evaluating concrete’s workability.  On the other hand, setting time of cement strongly influences the workability of mixtures.  A slump value of zero was identified as to be the initial setting time of mixture.  Research performed at the Material and Construction Laboratory, Diponegoro University, showed that actual setting time measured by mixture testing with the Pocket Penetrometer deviates significantly from the results of the Abrams test. Further, the effect of retarding admixtures to the workability of concrete mixtures, are evaluated.Keywords: Concrete mixture, Initial setting time, Pocket Penetrometer, Slump, AbramsPermalink: http://www.ejournal.undip.ac.id/index.php/mkts/article/view/3922[How to cite: Narayudha, M. dan Han, A.L., 2005, Waktu Ikat Adukan Beton dengan Pocket Penetrometer serta Korelasinya terhadap Nilai Slump, Jurnal Media Komunikasi Teknik Sipil, Volume 13, Nomor 3, pp. 67-74] 
Steel-Slag as Aggregate Substitute’s Influence to Concrete’s Shear Capacity an Experimental Approach Han, Ay Lie; Narayudha, Moga
MEDIA KOMUNIKASI TEKNIK SIPIL Tahun 16, Nomor 3, OKTOBER 2008
Publisher : Department of Civil Engineering, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (387.992 KB) | DOI: 10.14710/mkts.v16i3.3696

Abstract

Penggunaan slag baja sebagai pengganti agregat kasar pada beton telah menunjukkan nilai-nilai positif seperti meningkatnya kuat tekan beton, perbaikkan kelacakan (workability) adukan segar dan pengurangan pencemaran logam berat dengan adanya proses solidifikasi dalam semen. Karena masa jenis beton slag juga meningkat, maka perlu diadakan penelitian lanjut tentang kemungkinan penggunaan beton-slag ini sebagai komponen struktural. Peningkatan kuat tekan beton yang seiring dengan peningkatan massa jenisnya membuka peluang penggunaan bahan ini sebagai elemen struktur yang tertumpu pada tanah, seperti misalnya balok basement, balok tie-beam dan rigid pavement. Namun demikian perilaku beton-slag terhadap respons geser (shear) belum diketahui dengan pasti. Uji laboratorium ini meneliti perilaku geser balok beton-slag yang diberi tulangan tunggal sedemikian sehingga pola kehancuran balok dipengaruhi oleh kehancuran gesernya. Hasil pengujian dibandingkan terhadap balok identik dengan agregat Pudak Payung sebagai elemen kontrol. Pengamatan terhadap balok-balok ini menunjukkan bahwa penggunaan slag meningkatkan kapasitas geser beton sebesar 11%, serta tidak terjadi pergeseran pada pola kehancuran. Kata kunci: Slag, Agregat Kasar, Kuat Tekan, Kapasitas Geser. ABSTRACT The use of steel slag as a substitute to natural aggregates for concrete increases the compression strength and workability of fresh concrete mixes. Furthermore, by solidification in the cement matrix, the pollution of heavy metals into soil and groundwater can be reduced significantly. The utilization of slag-concrete to be used as structural components need to be conducted especially since mass density increases as a function of slag percentage. Possible aspects are among others, basement components, tie-beams and rigid pavement elements. All these structures rest directly on supporting under layers, reducing their negative high mass-density effect. While compression and tensile behavior have been explored, the shear capacity of slag-concrete has yet to be investigated. This experimental work covers the behavior of singly reinforced concrete beams failing under shear mode. The result is compared to the controlling element, identical to the concrete-slag beam. The controlling beam uses Pudak Payung aggregates. The experimental research shows that the slag-concrete’s shear capacity increases 11% to the Pudak Payung concrete. The mode of failure however, remains the same.Keywords: Slag, Coarse Aggregates, Compression and Shear StrengthPermalink: http://ejournal.undip.ac.id/index.php/mkts/article/view/3696[How to cite: Han A.Y. dan Narayudha, M. (2008), Steel-Slag as Aggregate Substitute’s Influence to Concrete’s Shear Capacity an Experimental Approach, Jurnal Media Komunikasi Teknik Sipil, Tahun 16, Nomor 3, pp. 223-230]
EVALUASI DAN PERENCANAAN SISTEM FEEDER JALAN PROF. SOEDARTO, SH TEMBALANG, SEMARANG Harijan, Harijan; P, Putu Wisnu; Ismiyati, Ismiyati; Narayudha, Moga
Jurnal Karya Teknik Sipil volume 1, Nomer 1, tahun 2012
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1052.258 KB)

Abstract

ABSTRAK Perkembangan wilayah Tembalang, baik di kecamatan Banyumanik dan kecamatan Tembalang, tumbuh dengan pesat. Perkembangan yang tidak didukung dengan fasilitas sarana maupun prasarana yang ada menyebabkan kemacetan kawasan Tembalang. Untuk itu, dilakukan evaluasi untuk mengetahui kinerja jalan Prof. Soedarto, SH, dengan perhitungan derajat kejenuhan berdasar survey LHR. Lalu dilakukan evaluasi terhadap kondisi eksisting angkutan umum saat ini, dari segi kinerja trayek, sarana dan prasarana. Kemudian dilakukan survei kuisioner dan wawancara pada masyarakat yang bermukim di sekitar jalan Prof. Soedarto, SH secara random sampling untuk melihat perilaku pergerakan dan pendapat masyarakat. Variable yang digunakan yaitu kondisi sarana dan prasarana, tingkat kenyamanan, sistem operasional, pola pergerakan, kriteria transportasi umum yang diinginkan. Dari hasil tersebut direncanakan sistem feeder yang sesuai untuk jalan Prof. Soedarto, SH, Tembalang. Hasil evaluasi menunjukkan pada ruas persimpangan Setiabudi – persimpangan SPBU Undip memiliki derajat kejenuhan ≥ 0,75 sehingga perlu dilakukan penanganan. Sistem feeder yang direncanakan adalah jalur pedestrian yang menghubungkan dengan angkutan feeder dan BRT, Rute trayek baru angkutan utama dan ranting yang melewati jalan Prof. Soedarto, SH, mengacu pada Perda no.14 tahun 2011 tentang RTRW kota Semarang. Kata Kunci : sistem feeder, kemacetan, kinerja jalan, sustainableABSTRACT Development of the Tembalang region, both on Banyumanik or Tembalang Sub-district, is grow rapidly. Therefor, evaluation is needed to determine performance of Prof. Soedato, SH, Street by calculating degree of saturation that based on traffic survey. Then, evaluation of existing condition of public transportation at present, in term of route performance, facilities and infrastructure. Then conducted a questionnaire and interview survey in people who lived around of Prof. Soedarto, SH. street by random sampling to know how about people behaviour on trip and opinion. Variable used are facilities and infrastructure condition, level of ease, operational system, trip pattern, desired criteria for public transportation. From that result, designed suitable feeder system for Prof. Soedarto, SH. Street. Evaluation result show that segment Setiabudi intersection – Undip Gas Station intersection has degree saturation value ≥ 0,75, so that its necessary treatment. Feeder system which designed is pedestrian track that would be connected with feeder transport or bus rapid transit, The main dan branch of new routes of transportation, which pass through Prof. Soedarto, SH. Street, it’s accordance with Perda no. 14 tahun 2011 tentang RTRW Kota Semarang. Keywords: feeder system, traffic jam,  road performance, sustainable
PERENCANAAN JALAN LINGKAR UTARA KOTA WONOSARI, KABUPATEN GUNUNG KIDUL, PROVINSI DAERAH ISTIMEWA YOGYAKARTA Anggraini, Anindita Dwi; Siringoringo, Judi Agnes Alvionita; Narayudha, Moga; Supriyono, Supriyono
Jurnal Karya Teknik Sipil Volume 3, Nomor 4, Tahun 2014
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

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Economic development and growth in the City Wonosari relatively fast growing, giving rise to the high mobility of the impact on the increase in traffic flow, traffic volume and road network system. One effort to do that with the planned construction of the North Ring Road City Wonosari able to support the creation of a transportation system that is effective, efficient, provide smooth transport, and increasing the role and function of national roads which have an important role in the conduct of regional transport flows in the Province Central Java. From the analysis of the northern ring road planning Wonosari City in accordance with the volume of traffic survey determined the number of lanes is 2/2 UD. From the calculation of the northern ring road planning Wonosari City, at the intersection specified the use of rigid pavement while traffic along the ring road north of the City Wonosari using flexible pavements.
KAJIAN REAKTIVASI JALUR LINTAS CABANG DAERAH OPERASIONAL IV (DAOP IV) Fuadi, Anisi; Egza, Robby Alfadhila; Narayudha, Moga; Kushardjoko, Wahyudi
Jurnal Karya Teknik Sipil Volume 3, Nomor 3, Tahun 2014
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (443.24 KB)

Abstract

The Central Java government was planning to reoperate unused railway, considering the road traffic that was increasing rapidly in Central Java. Today, Central Java region has 663 km of unoperated railway. Most of it was located in the 4th operational region (DAOP IV). This research was planned to make a priority scales about railways which had some potensial to reopen and its properness financially. The activating priority scales which was used in this operation based on analytical demand and analytical supply. Analytical demand consists of the traffic rate and the amount of passenger’s movements at the OD datas. Whereas, analytical supply consists of analytical techniques seen from field conditions such as terrain availability, tools or places conditions, and accessibility. The results shows that unoperated track between Semarang-Demak-Purwodadi-Blora-Cepu has the most potencial to reactivate again for passengers purpose. On the other hand, unoperated track which goes to Tanjung Emas Harbour also become the most potencial track to reactivate considering increasing activities in this harbour. Based on the analytical results, there were two passenger’s scenarios for shifting the use of  train transport, optimisstic scenario and pessimistic scenario. The optimisstic scenario was estimated to had 5058 passengers/day. While, the pessimistic scenario was estimated to had 1759 passengers/day. In order to reactivate the unoperated track between Semarang-Demak-Purwodadi-Blora-Cepu, a new construction was needed. It was because some of the old constructions were vanished and the railway type was very tiny, which were R.25 and R.33 type. All of those things above made this project highly cost, not to mention tools and operational funds to spend for its. From the financial view, the analytical result shows that NPV value was positive, BCR > 1, so it was good enough to reactivated. But, looking at the FIRR results, Semarang-Purwodadi track is the best option, considering its value is 5,69%, while for Semarang-Demak track is only 3,49%, and for Semarang-Cepu track is only 3,47%.  For a better result, reactivation process of this track need to consider surrounding area within the track. Also, it needs better knowledge to understand commodity and region potential in order to raise the incomes.