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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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PERILAKU RESPON LEKATAN TARIK DAN GESER ANTARA WRAP FRP (FIBRE REINFORCED POLYMER) DENGAN BETON KONVENSIONAL Wening Wijaya Danu; Adithya Wilda Nova; Han Ay Lie; Purwanto Purwanto
Jurnal Karya Teknik Sipil Volume 5, Nomor 2, Tahun 2016
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

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Abstract

Retrofitting structures can be done if a building has undergone a change of function, so that the load plan will be exceeded or because of changes in design criteria. Changes in design rules from SNI 03-1726-2002 to SNI 03-1726-2012, resulting in calculated load in the structure becomes larger. The condition occurs causing the need for investigation of the strengths of existing structures. The forces that need to be taken into account in the structure may be greater than the original design. Retrofitting alternatives that can be provided by giving FRP or Fibre Reinforced Polymer. In the use of FRP as reinforcement structure, issues to consider is about the bond between FRP with concrete. The influence of bond due to tensile and shear force that occurs can affects the destruction of the structure. The study by Tudjono et al. (2015) have shown that the beams reinforced with FRP without surface treatment can affect debonding between FRP to concrete. Therefore this study examines the effect of concrete surface roughness due to tensile and shear. From this study, it was concluded that the concrete that do not surface treatment can allow debonding. Treatment of roughness longitudinal, transverse, diagonal, and the cross type gives the same results as effective as compared to plain type. So that on the application in field, the easy surface treatment is selected.
PERENCANAAN CHECK DAMSUNGAI LEBUGINI KABUPATENKUDUS, JAWA TENGAH Fikri Amirullah; Raditya Nalendro; Sri Eko Wahyuni; Salamun Salamun
Jurnal Karya Teknik Sipil Volume 3, Nomor 2, Tahun 2014
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

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Abstract

Lebugini River is the branch of Juanariverswhich is under the authority of the Central River Region Pemali - Juana, precisely located in the administrative area of the Kudus District. The location, which is on the upstream,causes degradation of the river channel, thus, to stabilize the river channel, the local Goverment should have a plan to build the conservation building. The dataused for the planning of check dam areprimary data (geotechnical data, the geometry of Lebugini river, and also the water level when flood came) and secondary data (topographic map and rainfall data). These data is used as a basic ofmain dam planning, sub dam, apron, complementary buildings, building stability control, and as the  reference to determine the budget plan. From the calculation, height of main dam is 4,00 m, width of main dam’s and sub dam’s crest are 17,00 m each, thick of main dam’s and sub dam’s crest are 1,50 m each, the upstream slope of the dam is around 1 : 0,5, the downstream slope of the dam is around 1 : 0,2, width of main dam’s and sub dam’s wing are 1,50 m each, both main dam’s and sub dam’s wing penetration are 2,00 m each, height of sub dam 1,60 m, length of apron is 11 m, square -shaped drip hole with sides 1,00 m by 11 pieces. The total cost to build the check dams of Lebugini River is IDR 1.521.177.000,00 include VAT and 110 days workmanship.
KAJIAN PENANGANAN BANJIR SUNGAI TUNTANG DI DESA PULOSARI KABUPATEN DEMAK Amylian Rizkiana Safitri; Alfiansyah Deviar; Suharyanto Suharyanto; Rudi Yuniarto Adi
Jurnal Karya Teknik Sipil Volume 6, Nomor 4, Tahun 2017
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

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Abstract

Banjir adalah luapan air yang melebihi kapasitas penampang atau melewati batas elevasi rencana sungai akibat curah hujan yang tinggi. Banjir merupakan salah satu bencana alam yang mempunyai dampak besar bagi kelangsungan hidup manusia.Kabupaten Demak merupakan salah satu Kabupaten di Provinsi Jawa Tengah. Permasalahan banjir yang terjadi di Kabupaten Demak antara lain disebabkan karena meluapnya salah satu sungai yaitu Sungai Tuntang. Salah satu desa yang sering terjadi banjir di Kab. Demak adalah Desa Pulosari. Desa Pulosari memiliki luas 2 km² dan jumlah penduduk sebanyak 2151 jiwa pada Desember tahun 2014.  Sungai Tuntang memiliki panjang sekitar 113,51 km yang mengalir dari Rawa Pening hingga bertemu dengan Laut Jawa. Kondisi Sungai Tuntang yang mengalami penyempitan alur serta pendangkalan menyebabkan berkurangnya kapasitas penampang sungai untuk mengalirkan debit banjir.Debit banjir rencana yang digunakan dalam menganalisis penampang menggunakan periode ulang 25 tahunan Q25= 270.032 m3/dt. Analisis penampang eksisting dan penampang rencana dilakukan menggunakan software HEC-RAS. Output dari software HEC-RAS menunjukkan terpenuhi atau tidaknya debit banjir pada penampang sungai.Permasalahan banjir di Sungai Tuntang diatasi dengan berbagai cara, yaitu dengan perbaikan penampang, perencanaan tanggul, dan peninggian tanggul eksisting.
EVALUASI PENGERJAAN ULANG (REWORK) PADA PROYEK KONSTRUKSI GEDUNG DI SEMARANG Ardhan Herdianto; Ayunda Dewi Ratih Tanjungsari; Arif Hidayat; Jati Utomo Dwi Hatmoko
Jurnal Karya Teknik Sipil Volume 4, Nomor 1, Tahun 2015
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

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Abstract

Reworks on construction projects caused by errors in planning, working procedure errors, lack of supervision makes the results of work are not in accordance with the initial design and the construction. They can result in some of loss, such as cost, time, quality of work, and a decreased motivation. This study intends to evaluate the rework on the building construction project in Semarang with the aim to identifying the causative factor of rework, to knowing the magnitude of the risk and the impact caused of rework, knowing the parties responsible for the occurrence of rework and to find a solution to minimize it. A method of gathering data is done by conducting preliminary interviews to 6 companies construction in Semarang and spread of the questionnaires to the 60 respondents, but the application answered as much as 41 questionnaires. The risk management framework was used to determine the impact of rework on the construction project in terms of time and costs with a scale of 1-5. The results showed that the most dominant factor causes rework is a managerial factors. The type of work that is often experienced on rework is finishing and complementary. the greatest impact of rework on finishing work and complementary, with the impact on the time at 3.65 and the impact on the cost at 3.21. Parties responsible if rework occurs as a whole according to the perspective of the respondents there was party contractor amounted to 79.16%. The solution to minimizes rework effectivelly is to improve communication, supervision in the field, improve teamwork between the parties.
EVALUATION OF BRT SERVICE PERFORMANCE IN SEMARANG CITY. Case Study : Corridor II, Ungaran - Terboyo Aldila Bachtawar Zardari; Ilham Hussein Rasyid; Ismiyati Ismiyati; Bambang Riyanto
Jurnal Karya Teknik Sipil Volume 2, Nomor 4, Tahun 2013
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

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Abstract

Public Transport is one of the solutions to resolve the traffic in urban area, particularly in Semarang City. Therefore, Semarang City Government provided the public transports in the form of Bus Rapid Transport (BRT) Corridor I (the route of Mangkang – Penggaron) and Corridor II (the route of Ungaran – Terboyo Bus Station). According to the service performance evaluation to BRT Corridor I by Adyan and Salman in 2012, it was found that the Load Factor was 44,73%, and it did not meet the standard of PP.No.41/1993 and SK. Dirjen no.687 stating that the minimum load factor is 70%. Though the service provided was better than other public transportation. Therefore, an evaluation is required to the service performance on BRT Corridor II to determine whether BRT corridor II has the same problem as BRT Corridor I and how the solution to be used as a reference to the next corridor. This research applied the methodology of Dynamic Survey on BRT, Static Survey, Origin Destination Survey and Home Base Survey. Based on the survey and analysis results, it was obtained that the Load Factor by 23.51% is below the standard. In conclusion, the service performance of BRT Corridor I and BRT Corridor II was experiencing the same problem from the aspect of efficiency and effectiveness which is in accordance with the applicable standards but it was found in the field that the load factor was less than 70%. Based on the Home Base Survey, the non-users who are around BRT Route suggested that the manager should be more intensive in socializing BRT to communities and pay attention on the punctuality of BRT travel time. There are still a lot of transport other than BRT operating on the same route, which also resulted in a lack of BRT Load Factor because people tend to choose the transport that can stop anywhere, and it is in contrary with the purpose of the Public Transport. The researcher suggested that BRT and public transports other than BRT are under one management in terms of all the transportations stop in the shelters and have the same service standard. According to survey and analysis, Route from Ungaran to Pemuda and Raden Patah to Ungaran use BRT, whereasPemuda to Terboyo and Terboyo to Raden Patah use feeder transport in other to minimalize cost and make time around become quick, and according to analysis load factor from corridor I and II, prove BRT not too effective presents in Semarang City.
PERENCANAAN DRAINASE JALAN PAHLAWAN DAN JALAN SRIWIJAYA, SEMARANG Ruzika Habib; Recha Resnandi Raka; Sri Sangkawati; Dyah Ari Wulandari
Jurnal Karya Teknik Sipil Volume 6 ,Nomor 1, Tahun 2017
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

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Abstract

Banjir adalah aliran air di permukaan tanah yang relatif tinggi dan tidak dapat ditampung oleh saluran drainase atau sungai, sehingga melimpah ke kanan dan ke kiri dari saluran drainase serta menimbulkan genangan/aliran dalam jumlah yang melebihi normal dan mengakibatkan kerugian pada manusia. Jalan Pahlawan dan Jalan Sriwijaya Kota Semarang merupakan kawasan pusat kegiatan dan pelayanan di Kota Semarang. Pada saat hujan terjadi banjir atau genangan di jalan tersebut. Hal ini disebabkan karena saluran drainase berkurang kapasitasnya akibat sedimentasi, serta kurangnya saluran inlet yang beroperasi maksimal. Oleh karena itu diperlukan analisis hidrologi untuk mencari debit banjir rencana pada saluran drainase sehingga didapat dimensi optimal untuk saluran drainase dan jumlah serta dimensi saluran inlet yang dibutuhkan. Evaluasi kapasitas eksisting dengan debit rencana yang diperoleh dari aplikasi InfoSWMM untuk mengetahui daerah mana yang berpotensi terjadi genangan. Hasil evaluasi menunjukkan ada beberapa saluran yang tidak memenuhi syarat dari segi kapasitas dan kemiringan dasar saluran, serta kurangnya jumlah saluran inlet. Sehingga perlu dilakukan perencanaan dimensi saluran baru dan kemiringan saluran baru. Perencanaan kemiringan saluran dilakukan dengan bentuk saluran tetap. Perencanaan gorong-gorong menggunakan gorong-gorong U-Ditch. Perencanaan inlet menggunakan dua jenis inlet yaitu kerb inlet A2nh dengan dimensi 13/16 x 30 x 50 cm dan gutter inlet dengan dimensi gril saluran 49 x 35 x 2 cm.
UPAYA MENINGKATKAN KUALITAS AIR WADUK DIPONEGORO PADA DAS KRENGSENG, SEMARANG Grace Lucy Secioputri; Rahmat Kurniawan; Suseno Darsono; Priyo Nugroho
Jurnal Karya Teknik Sipil Volume 3, Nomor 1, Tahun 2014
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

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Abstract

This paper will explain how to maintain and improve water quality in Diponegoro reservoir. Krengseng watershed‘s area are Banyumanik sub-district and Tembalang sub-district which is Diponegoro reservoir catchment area that water influent to reservoir should have wastewater quality fit with the quality of wastewater domestic standard. Therefore, it needed domestic wastewater sewerage system and treatment plant in Krengseng watershed area. Domestic wastewater sewerage system and treatment plants design required some data such as quantity of domestic wastewater, water pollutants, population, and also overall site layout that would be used to design the domestic wastewater sewer system. To analyzed and sewer system design, we can used EPA SWMM 5.0 with small bore sewer as the main idea for sewer system. Specification that should be fulfilled are minimum pipe slope more than 0.006, flow rate between 0.6-3 m/s, and water flow quantity in pipe between 0.2-0.8 of pipe diameter. For treatment plants used septic tank as primary treatment and anaerobic filter as secondary treatment. Total cost for this design are planned Rp 133.819.636.500,00 with construction duration for one year and ten months.
RESTORASI SUNGAI DOMBO SAYUNG STA 0+000 – 3+800 KABUPATEN DEMAK Mayasari Mayasari; Riris Dwi Astuti; Sri Sangkawati; Sriyana Sriyana
Jurnal Karya Teknik Sipil Volume 7, Nomor 2, Tahun 2018
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

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Abstract

Permasalahan yang terjadi pada daerah disekitar wilayah Sungai Dombo Sayung adalah banjir akibat rob dan pendangkalan sungai serta alur sungai yang dijadikan tempat parkir nelayan masyarakat kecamtan Sayung tidak tertata dengan baik. Perencanaan restorasi Sungai Dombo Sayung bertujuan untuk mengetahui besarnya nilai debit banjir rencana, dimensi penampang efektif sungai, mewujudkan restorasi dari segi morfologi dan sosial ekonomi. Debit banjir rencana dihitung dari DAS Dombo Sayung dengan metode Haspers, Melchior dan Rasional ditambah dengan debit banjir yang masuk ke hulu Sungai Dombo Sayung melalui pintu Bendung Pucanggading, kemudian hasil ketinganya diambil yang terbesar dan dilakukan running dengan aplikasi HEC-RAS untuk mengetahui apakah kapasitas sungai mampu menampung debit banjir rencana. Berdasarkan hasil analisa menggunakan software HEC-RAS dengan nilai debit kala ulang 100 tahun total sebesar 749,19 m3/dt pada STA 8+800 – 0+000 elevasi air lebih tinggi dari elevasi tanggul. Penampang sungai yang sudah direncanakan, dicek kestabilan lerengnya menggunakan aplikasi Geostudio Slope W/ dan kemiringan lereng sungai cukup stabil dengan nilai FS 1,134. Hasil perencanaan yaitu dilakukan pengerukan sedalam ± 1,5 m, kemiringan dasar sungai rencana 0,000016,  perbandingan lereng sungai 1:2 dan tinggi jagaan tidak kurang dari 0,7 m. Restorasi dari segi sosial ekonomi direncanakan untuk meningkatkan pendapatan masyarakat sekitar dan daerah dengan direncanakan pariwisata di alur sungai Dombo Sayung STA 0+000 ( Pantai Morosari ) hingga STA 3+800 ( Desa Bedono ). Perencanaan dermaga wisata, dermaga nelayan dan jalur pelayaran kapal dilakukan pada STA 0+800 – 0+000. Rencana anggaran biaya untuk melaksanakan restorasi Sungai Dombo Sayung yaitu sebesar Rp. 58.710.504.000,-.
PERENCANAAN PEMBANGKIT LISTRIK TENAGA MINI HIDRO PADA DAERAH NON-CAT DI DAS BEKASI Diko Muhammad Abe; Rudi Setiyo Nugroho; Robert J. Kodoatie; Salamun Salamun
Jurnal Karya Teknik Sipil Volume 4, Nomor 4, Tahun 2015
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

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Abstract

Mini Hydro Power Plant (MHPP) is a Hydro Power Plant that generates electrical energy within 100 KWH to1 MWH. MHPP on non-ground water in Bekasi watershed located on 6º28’16,66’’ S - 106º53’48,75’’ E for Bekasi Upstream Weir and 6º27’57,06’’ S - 106º53’39,75’’ E for the power house. Bekasi Upstream Weir is located on Cileungsi River stream and the power house is on Bantarjati Village, Kelapa Nunggal Sub-District, Bogor District, West Java Province. The MHPP planning first starts by analyzing the hydrology to get the flood discharge plan and dependable discharge. Structure planning for MHPP includes weir planning, intake building, settling basin, penstock, and power house. With 205 km2 total area of non-ground water in Bekasi watershed, Cileungsi River has a 962.30 m3/second flood discharge plan with 50 years repeating period and 2,5 m3/second dependable discharge. Power plant has a weir to elevate water level with 43.2 m effective width and 10 m crest height. This MHPP has 10 m head fall height and generates electricity 154.22 kwH with one turbine.
PENGARUH RASIO JARAK AGREGAT TERHADAP KUAT TEKAN BETON MORTAR Bayu Asmoro; Moh. Wahyudi; Han Ay Lie; Purwanto Purwanto
Jurnal Karya Teknik Sipil Volume 2, Nomor 3, Tahun 2013
Publisher : Departemen Teknik Sipil, Fakultas Teknik Universitas Diponegoro

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Abstract

In this research used  aggregate with the diameter of 2 cm and heigth of 5 cm, with the number of 2, is being plant to a mortar concrete, That have a cube and  10 x10 x5cm size, with the position of the aggregate is being variant from vertical to horizontal planted with the ratio of the distance between the two aggregate is 4 cm and 3 cm from its center of gravity point.Making mortarconcrete specimens using Ordinary Portland Cement (OPC) using the comparison 1 Pc: 2.75 of sand and 0.485 of water cement ratio conforming with ASTM C 109 (Compressive Strength of Hydraulic Cement mortars) standard. The Test is being held with used of compression test which is Hung Ta with the compressive and displacement data out put is being recorded by data logger and LVDT (Linear Variable Displacement Transducer). The results from research show how different ratio of the distance affect the compressive strength. Specimen with the 4 cm distance ratio horizontal position has highest value strength of concrete mortar. The crack of model is columnar crack following contour  compressive stress and perpendicular tensile stress.

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