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INDONESIA
JURNAL KARYA TEKNIK SIPIL
Published by Universitas Diponegoro
ISSN : -     EISSN : -     DOI : -
Core Subject : Engineering,
Civil Engineering, Building, Construction & Architecture
Arjuna Subject : -
Articles 592 Documents
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STUDI EKSPERIMENTAL PENGARUH KONFIGURASI SENGKANG PADA DAERAH TEKAN BALOK BETON SERAT BERTULANG Sufaat, Muchtar; Pratama, Dian Adhitya; Purwanto, Purwanto; Sabdono, Parang
Jurnal Karya Teknik Sipil Volume 4, Nomor 4, Tahun 2015
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

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Abstract

Concrete has relatively high compressive strength, in other hand higher concrete compression give more brittle of failure. There are several methods for improvement such as addition steel-fiber in concrete mix and confinement in the compression zone. This study present a further study on the influence of addition 0.5% steel-fiber of concrete volume to concrete mix and three specimen fiber concrete beams ware evaluated with three stirrup configuration (BF1, BF4, BF5) that concentrated in the compression zone. The study’s analyze using a pure beding test with 2 point load of a simply supported beam. The variation of stirrup configuration concentrated at pure beding moment zone of beam. The result of this study, the addition of steel-fibers to the concrete mix increased the cylinder compression strength by 11,96%, The moment capacity of BF4 increased by 0,96% compered to BF1 in other hand the specimen BF5 reduce by 4,1% compered to BF1 ,The Stiffnes of BF4 increased 132,64% and BF5 increased by 25,44% compared to BF1,The Ductility of specimen BF4 increased by 148,01% and BF5 increased by 3.97% compared to BF1.
EVALUASI DAN PERENCANAAN KEMBALI BENDUNG SAPON Dyah Wahyu Apriani; Fajar Nugroho Utomo; Sri Eko Wahyuni; Siti Hardiyati
Jurnal Karya Teknik Sipil Volume 2, Nomor 1, Tahun 2013
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

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Abstract

Sapon weir, which located at Kulon Progo, Yogyakarta, is a hydraulic structure that its water supply is from Progo river. Sapon weir are used to flow through ± 1850 ha rice field area, from ± 2250 ha before at 2,3 m3/sec, and to fulfill the water needs in 4 sub districts at 0,2 m3/sec. The increasing function of Sapon weir from only covering the irrigation needs, to fulfilling the water needs it is the implementation of the regulation no 8 year 2005 about water resources. The analysis of flood design using Haspers Metod, FSR Jawa-Sumatera, HSS Nakayasu, HSS Gama 1 with flood design comparation from Pasing Capacity Metod that has 1123,96 m3/sec of flood discharge in hundred year periode (Q100). The design of Sapon weir consists of main dam, complement buildings and requirement water supply pump for 1383,97 m3/sec of flood discharge hundred years period. The differences of weir design change the weir dimensions and the complement buildings.
STABILISASI TANAH LEMPUNG EKSPANSIF DENGAN CAMPURAN LARUTAN NaOH 7,5 % Gunasro, Andreas; Nuprayogi, Rizqi; Partono, Windu; Pardoyo, Bambang
Jurnal Karya Teknik Sipil Volume 6, Nomor 2, Tahun 2017
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

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Abstract

Tanah merupakan dasar dari suatu struktur atau konstruksi, baik itu konstruksi bangunan maupun konstruksi jalan, yang sering menimbulkan masalah bila memiliki sifat-sifat yang buruk. Sifat-sifat tanah yang buruk dan kurang menguntungkan bila digunakan sebagai dasar suatu bangunan atau kontruksi, antara lain plastisitas yang tinggi, kekuatan geser yang rendah, kemampatan atau perubahan volume yang besar dan potensi kembang susut yang besar. Berbagai cara digunakan untuk memperbaiki kekuatan dari tanah lempung ekspansif, diantaranya dengan penambahan bahan kimia (stabilisasi secara kimiawi). Untuk mengatasi permasalahan yang ada pada tanah lempung eksapnsif maka diadakan penelitian dengan menggunakan soda api (NaOH) sebagai bahan stabilisasinya. Sampel tanah lempung ekspnasif diambil dari daerah Godong – Purwodadi Km ± 49,Jawa Tengah. Komposisi campuran soda api (NaOH) sebesar 7,5 %.Hasil penelitian menunjukkan bahan stabilisasi soda api (NaOH) belum dapat memperbaiki sifat fisik dan mekanik tanah lempung ekspansif. Pada sifat fisik : berat volume, kadar air, berat jenis, dan batas-batas Atterberg mengalami kenaikan setelah distabilisasi.
PERENCANAAN CHECK DAM KALI GUNG KABUPATEN TEGAL Anwar Eko Yulianto; Yunus Jonatan; Sutarto Edhisono; Abdul Kadir
Jurnal Karya Teknik Sipil Volume 3, Nomor 3, Tahun 2014
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

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Abstract

Gung watershed is part of the watershed which located in Tegal regency with an area of 45.65 km2 where Gung River as its main river . Gung river conditions at this time had a reduction in the flow of flood discharge due to reduced cross-sectional area of the river (river capacities) due to sedimentation . The main cause of the high rate of sedimentation is the destruction of water catchment areas and land management less attention to the principles of conservation land . Therefore it is very necessary management effective river drainage area with emphasis on the conservation and protection of the land (in particular critical area) and water, especially in the upstream of the river. One of the countermeasures for erosion and sedimentation problems in this river is by building sediment control structure or so-called check dam . From the calculations have been done, check dam was designed to have the following features: spillway crest of the main dam at El. +431.500 m, 4 m dam height and 3.2 m foundation depth, bottom width obtained by 20 m, flood design discharge with 50 years return period was 502.368 m3/sec, height of wing crests was 6.469 m at El.+437.969 m with 1.0 m freeboard, construction of the main dam was stone masonry; spillway crest of the sub dam at El.+429.000 m with 1.5 m height and 2.5 m foundation depth, height of wing crests was 6.567 m at El.+435.567 m with 1.0 m freeboard, construction of the sub dam was stone masonry. The apron elevation was El.+427.500 m with 1.8 m thickness. The apron protection was concrete in quality K 175 with 1.5 m thickness (bottom layer) and quality K 225 with 0.3 m thickness (upper layer/blanket).
DESAIN STRUKTUR GEDUNG HOTEL THE GREEN SURABAYA Enda Suranta Sitepu; Yohanes Agung Nugroho; Himawan Indarto; Yulita arni priastiwi
Jurnal Karya Teknik Sipil Volume 7, Nomor 4, Tahun 2018
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

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Abstract

ABSTRAK Hotel The Green terletak di kota terbesar kedua di Indonesia yaitu Surabaya. Dikarenakan wilayah ini masuk ke dalam wilayah rawan gempa, maka gedung dirancang untuk dapat menahan gempa.  Metode perencanaan gedung mengacu pada Standar Nasional Indonesia, yaitu SNI 1726:2012. Dari segi desain gedung digunakan SNI 2847:2013 dan SNI 1727:2013 untuk pembebanannya. Analisis gempa secara dinamis, menggunakan respon spektrum. Gaya gempa dihitung berdasarkan kriteria desain seismik (KDS) masuk dalam  tipe D, sehingga  gedung direncanakan dengan konfigurasi Sistem Rangka Pemikul Momen Khusus (SRPMK). Dengan sistem rangka tersebut, dapat direncanakan terjadinya sendi plastis pada tumpuan balok, sehingga bila terjadi gempa, struktur gedung mampu berperilaku runtuh pada balok terlebih dahulu yang akan meminimalkan risiko kerusakan bangunan dan jatuhnya korban jiwa. Analisa struktur menggunakan program analisa struktur. Material yang digunakan yaitu beton f’c 30 MPa dan baja tulangan ulir fy 420 MPa.
EVALUASI KELONGSORAN PADA RUAS JALAN WELERI – PATEAN KM50 DAN ALTERNATIF PENANGANANNYA Moh. Ariawan Hidayat; Danni Tanro; Sri Prabandiyani Retno Wardani; Indrastono Dwi Atmanto
Jurnal Karya Teknik Sipil Volume 2, Nomor 2, Tahun 2013
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

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Abstract

Road between Weleri - Patean is a national road that has an important role in regional and national economic development. The road is an alternative route that connects the “Pantura” to the “Selatan” route. In January 2012, there was a catastrophic landslide occurred in kilometers 50 from Weleri to Patean. It’s 6.8 meters in height and 8 meters in lenght landslide. As result,, only half the roads are passable by vehicles, and by the implementation of on way system, the flow of traffic became pretty slow. After slope stability analysis using Fellenius method is performed, it is shown that the SF or safety factor of the slope is 0.878 and for 1.284 by using Plaxis V.8.2 program. Both SF less than normal safety factor which is 1.3. So it can be inferred that the slope is in critical condition. Therefore, it is very important to install special reinforcement to restrain or stabilize the slope. The first alternative of slope reinforcement is gabion, the second alternative is retaining wall and the third alternative is steel sheet pile reinforcement. Based on finite element method calculation using Plaxis V.8.2 software, it is found that gabion changes the safety factor of the slope from 1.284 to 1.512 and gives  4.645 cm displacement. Meanwhile, retaining wall increases the value of safety factor from 1.284 to 1.538 and gives 4.365 cm displacement. In otherhand, steel sheet pile reinforcement gives a noticeable safety factor value which is 2.075 and gives 2.932 cm displacement. Compared to the other alternatives, steel sheet pile reinforcement performs the best stabilization reinforcement, resulting in high safety factor value and small displacement value, therefore, steel sheet pile reinforcement is is considered as the best alternative solutions for landslide in Weleri – Patean Km 50 Road.
EVALUASI DESAIN LANDSIDE BANDAR UDARA INTERNASIONAL AHMAD YANI SEMARANG PADA PENGEMBANGAN TAHAP I Cathur Agung Pamungkas, Sanny Bhahryeltaky R.N, Y.I cathur agung pamungkas; sanny bhahryeltaki R.N; Wicaksono Y.I. Wicaksono; Kami Hari Basuki
Jurnal Karya Teknik Sipil Volume 7, Nomor 4, Tahun 2018
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

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Abstract

ABSTRAKPengembangan Tahap I Bandar Udara Internasional Ahmad Yani direncanakan selesai pada tahun 2017. Setelah pengembangan Tahap I selesai landside Bandar Udara akan berpindah ke sebelah utara runway eksisting. Dalam kajian ini, lokasi landside baru disebut sebagai lokasi “eksisting”. Kajian ini bertujuan untuk mengevaluasi ketiga elemen landside “eksisting” yaitu terminal penumpang, gedung parkir, dan jalan akses. Analisis yang dilakukan berupa meramalkan penumpang hingga tahun pengembangan selanjutnya (2027), menghitung luas terminal penumpang dengan SNI 03-7046-2004 dan IATA ADRM 2004 kemudian dibandingkan dengan terminal penumpang “eksisting”, menganalisis level of service terminal penumpang “eksisting”, menghitung luas gedung parkir kendaraan dengan SKEP 77/VI/2005, dan menganalisis kinerja jalan dan simpang menuju lokasi “eksisting” dengan Manual Kapasitas Jalan Indonesia 1997. Perbandingan luas terminal penumpang menunjukan luas hall keberangkatan dan hall kedatangan “eksisting” lebih kecil dibandingkan luas standar SNI 03-7046-2004 dan IATA ADRM 2004. Nilai level of service baggage claim area pada tahun 2025 mendapat nilai D. Luas tempat parkir “eksisting” 43.000 m2 lebih kecil dibandingkan luas hasil perhitungan 95.592 m2. Kinerja jalan dan simpang pasca pemindahan ke lokasi “eksisting” dibagi menjadi dua Skenario. Skenario 2 menunjukan kinerja lebih baik dibandingkan Skenario 1. Kinerja jalan Skenario 2 memiliki rata-rata nilai DS lebih dari 0,75 dan rata-rata kecepatan 50 km/jam, sementara kedua simpang yang ditinjau memiliki rata-rata nilai DS lebih dari 0,75, tundaan terbesar 55,619 det/smp pada pendekat Timur simpang Madukoro dan 81,81 det/smp pada pendekat Barat Simpang Anjasmoro Raya. Rekomendasi kajian selanjutnya dalam analisis luas gedung parkir dianjurkan untuk mempertimbangkan pengaruh parkir statis dan parkir dinamis. 
PERENCANAAN SISTEM PENYEDIAAN AIR BERSIH PDAM KOTA SALATIGA Arif Kurniawan; Agus Priyanto; Suripin Suripin; Salamun Salamun
Jurnal Karya Teknik Sipil Volume 3, Nomor 4, Tahun 2014
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

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Abstract

PDAM water supply services Salatiga still faced with various technical, financial and institutional problems. To overcome these problems we need a strategy of how to remedy the problems based on technical, financial and institutional aspects. With these strategies, it’s expected, the water services to the community can be improved, in order to get access and reduction of water loss up to 25% can be achieved the target of 85% services. Evaluation results so that the availability of the technical aspects of water sources Salatiga urban areas do not meet the minimum water needs up to 10 years, coverage is still low,the leakage rate is still high and the condition of the existing transmission and distribution pipelines still need to be addressed .While a better performance of PDAM Salatiga needs take a few strategies releted to finance and management techniques.
STUDI EKSPERIMENTAL PENGARUH TEGANGAN TEKAN SELAMA PROSES PRODUKSI TERHADAP KUAT TEKAN DRY CONCRETE M. Mirza Abdillah Pratama; Vemi Widoanindyawati; Han Ay Lie; Purwanto Purwanto
Jurnal Karya Teknik Sipil Volume 3, Nomor 4, Tahun 2014
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

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Abstract

Dry concrete is basically a cementitious material, consisting of aggregates imbedded in a cement matrix that function as the binding agent. The water cement factor during this production is customary kept low, since from the economic point of view, speed in production is favored. A low water-cement-factor will result in a faster unmolding of elements. As a consequence, the probability of the hydration process is not at optimum. A technique of optimizing the hydration process is to apply a compression stress to the dry concretes, during the hydration stage. This stress is aimed to reduce the air voids in the mixture and to enable the entrapped water within the mortar to optimize the reaction with the cement. The application of compression stress is not only freed the entrapped water, but also creates a more dense material so it will provides a better performance of the dry concrete. This study uses 2 types of mix design with a water-cement ratio of 0.4 and 9 types of compressive stress variations during the production process from 0 MPa to 40 MPa. The experimental test showed that the compressive stress during the production process affect the compressive strength of dry concrete. The greater compressive stress given during the production process increase the compressive strength of the dry concrete. This increase occurred gradually until it reaches the optimum compressive stress, which is 35 MPa. The rate of increase in compressive strength and the optimum compressive stress on both the mix design is in the same point, it is due to both the mix design using the same water-cement ratio.
KAJIAN PERKUATAN STRUKTUR GEDUNG YANG DISESUAIKAN DENGAN SNI GEMPA 03-1726-2012 KOTA SEMARANG STUDI KASUS GEDUNG KULIAH UTAMA FAKULTAS TEKNIK UNIVERSITAS DIPONEGORO Gema Putra Pratama; Bayu Dwi Satrio; Sri Tudjono; Hardi Wibowo
Jurnal Karya Teknik Sipil Volume 5, Nomor 2, Tahun 2016
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

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Abstract

The Main Lecture Building of Engineering Faculty of Diponegoro University construction process start form June 2010 and be expected to finish at November 2010 but until October 2015 this building can not used as it planned because the construction process have some trouble. Design of this building still use the old guidence that is Earthquake SNI 03-1726-2002. This day that guidence has been updated become Earthquake SNI 03-1726-2012. Because of that this building need to studied so the building can accord with the new guidence. The purpose of this study is to design the structure strengthening so the building can accord with the new guidence. The method of this study is collect the data of laboratory examination. This data will use to determine the quality of materials for calculate nominal capacity. Then redesign the structure using SAP 2000 so that we can know the forces in every element of this structure. Then compere these forces with nominal capacity of the existed structure which is manually calculate under guidence of Concrete SNI 03-1726-2013. If the forces from SAP 2000 analysis bigger than the nominal capacity then the element need strengthening. The reviewed element are beam, column, joint and caisson foundation with strengthening use fiber reinforced polymer under guidence of ACI 440 and concrete jacketing. The result of analysis based on Earthquake SNI 03-1726-2012 show that some element in this building can not hold the forces. Beam can not hold the shear forces. Because of that, beam need the FRP shear strengthening to increase the nominal capacity. Beside beam, column also can hold the forces there are axial and moment. Because of this column need to use the concrete jacketing method to increase the nominal capacity. Concrete jacketing method more efficient than FRP strengthening for column.

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