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Rekayasa Sipil
Published by Universitas Brawijaya
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Core Subject : Engineering,
Civil Engineering, Building, Construction & Architecture
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Articles 551 Documents
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SEMARANG INTEGRATED BOAT RAPID TRANSIT : KAJIAN PENERAPAN TRANSPORTASI SUNGAI DI KOTA SEMARANG Moh Nur Sholeh; Robert Fanny Al Firdaus; Dimas Sukma Adiputra; Sayekti Laras Hidayati
Rekayasa Sipil Vol 13, No 3 (2019)
Publisher : Department of Civil Engineering, Faculty of Engineering, University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.rekayasasipil.2019.013.03.1

Abstract

Kota Semarang menjadi kota dengan jumlah penduduk yang terus meningkat. Saat ini Kota Semarang mempunyai banyak permasalahan, beberapa diantaranya adalah buruknya transportasi umum dan kemacetan. Pemerintah sebagai pembuat kebijakan harus menyediakan transportasi umum yang layak untuk masyarakat. Oleh karena itu untuk memecahkan permasalahan tersebut diperlukan suatu inovasi. Semarang Integrated Boat Rapid Transit atau Siborat adalah bentuk inovasi transportasi sungai yang diharapkan ramah dan efisien serta terintegrasi dengan transportasi lainnya. Siborat ini digunakan di sungai Banjir Kanal Timur Semarang yang menghubungkan wilayah Semarang Tengah hingga Semarang Utara. Saat ini, sungai Banjir Kanal Timur digunakan untuk mengalirkan air dari tengah kota ke Laut Jawa dan sebagai bagian dari pengendalian banjir di Kota Semarang. Diharapkan dengan Siborat ini masyarakat tidak perlu untuk menempuh jarak waktu yang lama dan mengurangi kemacetan di kota Semarang serta dapat menciptakan transportasi umum yang murah dan efisien.
POTENSI PEMANFAATAN KAYU GELAM DAN KAYU SENGON DALAM DUNIA KONSTRUKSI BERDASARKAN UJI KUAT LENTUR Basyaruddin, Basyaruddin; Suryaningsih, Alnovia -; Awali, Jatmoko
Rekayasa Sipil Vol 13, No 3 (2019)
Publisher : Department of Civil Engineering, Faculty of Engineering, University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.rekayasasipil.2019.013.03.6

Abstract

In 2013, The Ministry of Forestry revealed that the need for wood as material for construction was always increasing. In order to find the innovations regarding timber structure, this study was conducted to discover the flexural strength of gelam and sengon based on SNI 03-3959-1995. Also, specimens which 50 mm in depth, 50 mm in height and 760 mm in length were tested using two point loading method based on ASTM D-198. This research showed that the average flexural strength of gelam is 100.13 Mpa which is greater than sengon (82.62 Mpa). Furthermore, as simple truss structure, simulation indicated that gelam and sengon are still capable in resisting moment generated from service load.
Analisis Keselamatan Lalu Lintas Jalan Tol Ngawi-Kertosono, Studi Kasus Ruas Madiun-Caruban dan Ruas Caruban-Wilangan Beti Irma Sari
Rekayasa Sipil Vol 14, No 1 (2020)
Publisher : Department of Civil Engineering, Faculty of Engineering, University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.rekayasasipil.2020.014.01.1

Abstract

Toll roads can reduce travel time to be shorter, easier, more convenient, and smooth. However, many road users neglact safety because it’s too comfortable with road conditions that are straight, smooth, and without obstacles. Many road users who drive vehicles exceed the required traffic signs, causing traffic accident. Within 10 months of the operation of the Ngawi-Kertosono toll road on April 1, 2018, until February 24, 2019, traffic accidents reached 59 accidents on the Madiun-Wilangan toll road. From these data, it’s necessary to study the causes of toll road traffic accidents in accident-prone areas. As a first step, it’s necessary to determine the black site and black spots and the relationship between the geometric factors of the road to reduce the number of traffic accidents on the Madiun-Wilangan toll road. This calculation analysis uses the Z-Score and Cusum method by finding the black spot and black site areas. Based on the results of the analysis there are accident-prone areas on the toll road that is from KM 602 to 622 where the Z-Score is 1.733> 0 and Cusum 7.64> 0 so that the accident-prone area can be found on the Black Site and Black Spot results on the road location Madiun, Caruban and Caruban-Wilangan toll road. Suggestions from research need to be conducted outreach or outreach related to traffic and road safety regulations that often have accidents.
Analisis Risiko Rantai Pasok Material Terhadap Keterlambatan Pelaksanaan Proyek Konstruksi Hendi Kurniawan; Ida Ayu Ari Anggraeni
Rekayasa Sipil Vol 14, No 1 (2020)
Publisher : Department of Civil Engineering, Faculty of Engineering, University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.rekayasasipil.2020.014.01.6

Abstract

The uncertainty of the supply chain in the process of procuring building materials can be a risk that results in delays in the implementation of construction projects. This study aims to analyze the material supply chain risks that affect delays in the implementation of construction projects. Supply chain risks are classified from Supply, Control, Demand, and Process. Data collection by survey method and respondents selected by purposive sampling method. The analysis used is the AHP method. The risk response is confirmed to the expert by the interview method. The results of the risk assessment found that the late delivery of material due to non-current financial problems with FR = 0.703 was the most risky factor resulting in project development delays.
Analisis Debit Limpasan Drainase Akibat Pengaruh Perubahan Tata Guna Lahan Alifia Faradina; Indradi Wijatmiko; Yatnanta Padma Devia
Rekayasa Sipil Vol 12, No 2 (2018)
Publisher : Department of Civil Engineering, Faculty of Engineering, University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.rekayasasipil.2018.012.02.1

Abstract

The drainage area of the secondary drainage system of the Gunungsari often occurs inundation or flood during rain. This is due to land use change, which was originally a water catchment area transformed into a densely populated area that resulted in disruption of soil absorption so that runoff becomes bigger. The analysis used in this thesis includes hydrological analysis, land use analysis, domestic discharge analysis, cumulative discharge analysis and hydraulics analysis. The hydrological analysis calculated the rainfall at return period of 2, 5, and 10 year with the Pearson Log distribution III, discharge calculation of the plan with the return period by means of the rational method and the method of coefficient value of land use (C) the land is then divided by the area of each sub das. The analysis of domestic waste was calculated from the total population prediction in the future and the water needs of the population. The cumulative discharge was total from domestic discharge and flood discharge of the return period of 2, 5, and 10 years. Hydraulic analysis was calculated to know the existing capacity of channel. The changing of land use were represented by average land use value ( Caverage ), which the value are 0,732; 0,725 and 0,747 for the year 2002; 2007 and 2017 respectively. Based on the results of flood discharge planning analysis, cumulative discharge in return periods of 10 years and hydraulic analysis, the flooding occurred at Darmo Indah channel (segment 5-2) by comparing capacity discharge 2,49 m3 / s and cumulative discharge 4,360 m3/s, Darmo Harapan channel (segment 4-5) by comparing capacity discharge 2,90 m3/s and cumulative discharge 4,496 m3/s. Darmo Satelit channel (segment 7-8) by comparing capacity drainage 4,08 m3/s and cumulative discharge 4,586 m3/s and Simo Gunung channel (segment 18-19) by comparing capacity drainage and cumulative discharge 1,31 m3/s and 2,648m3/s. The capacity of existing secondary channels is not able to accommodate cumulative water discharge over the next 10 years. Therefore, the solution to overcome the flooding is by substituting existing channel box culvert. On the other had, another way to prevent flooding are maintenance and cleaning of solid waste and sedimention regularly.
Evaluasi Kinerja Perbaikan Tanah Lunak Dengan Menggunakan Preloading dan Prefabricated Vertical Drain (PVD) Zahra Febrina Lilabsari; As'ad Munawir; Yulvi Zaika; Arief Rachmansyah
Rekayasa Sipil Vol 12, No 2 (2018)
Publisher : Department of Civil Engineering, Faculty of Engineering, University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.rekayasasipil.2018.012.02.6

Abstract

The settlement of soil consolidation is geotechnical problem which is often found in soft soil accumulation. It is therefore, Preloading and Prefabricated Vertical Drain techniques are used to accelerate consolidational settlement. The problem which often appeared in using Preloading and Prefabricated Vertical Drain (PVD) is the failure of design. It causes the consolidationtime cannot run in accordance with the planning. In order to have soil improvemet method which has high effectiveness it is necessary to evaluate the use of geotechnical instruments. In this study, the evaluation covers 3 (three) geotechnical instruments, where Settlement Plate is used to evaluate theoretical settlement, to calculate final settlement prediction with Asaoka observation method and consolidation degree in the field. Consolidation degree also can be evaluated using Pneumatic Piezometer instrument. The inclinometer is used to evaluated the stability of embankment. The failure of design in using Preloading and Prefabricated Vertical Drain (PVD) can be accured because of the mistake of planner in determaining soil design parameters, therefore this study also discusses soil design parameters in actual condition using back analysis method. The results obtained in this study are comparison of actual and theoretical settlement on average of 0.862. To predict final settlement it can be obtained the value 2191,08 mm with the rest of settlement which will be accured about 100 – 450 mm. In this study the actual consolidation degree from Piezometer reading is 85,36% and Settlement Plate reading is 88,42% with the difference of 3,06%. From Inclinometer reading lateral shift which is accured below the soil there is no land slide so that the embankment which is used remains safe The result of back analysis method is Ch value where the new Ch value is 1,914Cv.
PENGARUH REHABILITASI JARINGAN IRIGASI DAN KAPASITAS TAMPUNG WADUK TERHADAP KENAIKAN PRODUKTIVITAS TANAM DI DAERAH IRIGASI Gatot Eko Susilo
Rekayasa Sipil Vol 13, No 1 (2019)
Publisher : Department of Civil Engineering, Faculty of Engineering, University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.rekayasasipil.2019.013.01.2

Abstract

Sebagian besar waduk dibangun untuk memenuhi kebutuhan air yang bersifat multiguna, artinya diperuntukkan untuk memenuhi berbagai kebutuhan air. Walaupun demikian kebutuhan air irigasi adalah kebutuhan air yang terbesar yang harus dipenuhi oleh waduk. Di seluruh dunia, kebutuhan air irigasi adalah sekitar 70% dari total air tawar dunia. Penelitian ini bertujuan menyelidiki kemampuan Waduk Way Rarem di Lampung Utara untuk memenuhi kebutuhan air di Daerah Irigasi Rarem dan menyelidiki pengaruh rehabilitasi jaringan irigasi terhadap kenaikan produktivitas tanam. Daerah Irigasi Rarem adalah daerah irigasi di Provinsi Lampung bagian Utara. Pada saat dibangun daerah irigasi ini direncanakan melayani sawah dengan luas baku 22.972 ha. Dari luas baku tersebut luas fungsi irigasi hanya mencapai 17.216 ha. Seiring berjalannya waktu, pada saat ini luas fungsional sawah menurun menjadi 15.081 ha akibat menurunnya efisiensi irigasi yang disebabkan oleh kerusakan saluran. Untuk meningkatkan hasil produksi pertanian Jaringan Irigasi Rarem akan direhabilitasi sehingga dapat melayani sawah seluas 19.264 ha.  Hasil penelitian menunjukkan bahwa produktivitas tanam optimal dengan luasan sawah 19.264 ha adalah 171%. Sedangkan rehabilitasi jaringan yang akan dilakukan akan berpotensi meningkatkan hasil panen sebesar 24.820 ton pertahun atau kenaikan sebesar 14,36% dari hasil produksi sekarang. Secara matematis, inflow Waduk Way Rarem tidak akan mampu untuk mengairi sawah dengan produktivitas tanam 200%. 
PENGARUH PERKUATAN MORTAR JAKET DENGAN VARIASI JARAK SENGKANG BAMBU PADA KOLOM BETON BERTULANG Muhammad Ainur Rofiq; Christin Remayanti Nainggolan; Ari Wibowo; Indradi Wijatmiko
Rekayasa Sipil Vol 13, No 1 (2019)
Publisher : Department of Civil Engineering, Faculty of Engineering, University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.rekayasasipil.2019.013.01.7

Abstract

A building consists of several structural elements, one of them is a column that has the function to distribute the entire load of the building towards the foundation. If in the working process is done poorly, the column structure will fail. In addition, the structure of the building that has been established is sometimes not function appropriately based on the initial plan, so the load that works on the structure of the building can exceed limits that are previously calculated. Then, the reinforcement of the column is required to be functioned according to the previous planning. In this case, we use the retrofit column code A.5 and B.5 is a retrofit column that uses 4 pieces and 8 pieces of bamboo longitudinal with a size of 10 x 10 mm and 10 x 5 mm with a distance between 7 cm transversal reinforcement, compared to a retrofit column code A.6 and B.6 is a retrofit column that uses longitudinal reinforcement of bamboo as many as 4 pieces and 8 pieces with a size of 10 x 10 mm and 10 x 5 mm with a distance between transversal reinforcement 11 cm. The column was tested by using a compression test machine to obtain the value of the compressive force and dial gauge to obtain the deflection value. Testing of compressive strength was not carried out in the initial column, but only in the retrofit column. The results of the study between variations of A5 and A6 showed that variations in A5 had an increase in the maximum compressive force of 61.78% while variations in A6 increased by 59.86%, it is concluded that A5 was more effective than A6. Whereas for the research between variations of B5 and B6 it was found that variations in B5 had an increased maximum in compressive force of 48,51 %, it is concluded that B5 was more effective than B6.  
EVALUASI STANDAR PELAYANAN MINIMUM DAN TINGKAT KEPUASAN PENUMPANG DI TERMINAL ANGKUTAN UMUM TAWANG ALUN JEMBER Kevin Muzammil; Dewi Junita Koesoemawati; Willy Kriswardhana
Rekayasa Sipil Vol 13, No 2 (2019)
Publisher : Department of Civil Engineering, Faculty of Engineering, University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.rekayasasipil.2019.013.02.2

Abstract

Terminal Tawang Alun Jember merupakan Terminal Penumpang Tipe A yaitu terminal yang berfungsi untuk melayani transportasi umum baik skala nasional maupun skala internasional. Tujuan penelitian ini adalah untuk mengetahui kepuasan dan harapan dari pengguna jasa terhadap fasilitas dan pelayanan dengan melihat kelengkapan fasilitas di terminal Tawang Alun berdasarkan Peraturan Menteri Nomor 40 Tahun 2015. Evaluasi tingkat kepuasan pelanggan menggunakan acuan berdasarkan Peraturan Menteri Pendayagunaan Aparatur Negara Dan Reformasi Birokrasi Republik Indonesia Nomor 14 Tahun 2017 khususnya mengenai fasilitas utama maupun fasilitas penunjang. Adapun analisis tingkat kepuasan menggunakan metode IPA (Importance Performance Analysis). Berdasarkan hasil pengamatan, tingkat pelayanan adalah sebesar 50,00% dimana Terminal Tawang Alun memenuhi 28 indikator dari total 56 indikator yang terdapat dalam  Peraturan Menteri Nomor 40 Tahun 2015. Tingkat kepuasan dengan melihat unsur pelayanan di Terminal Tawang Alun bernilai 51,31 yang masuk dalam kategori nilai D (Tidak Baik). Nilai tingkat kepuasan digambarkan dalam diagram kartesius yang menunjukkan prioritas utama untuk peningkatan pelayanan adalah pelayanan kelengkapan informasi jadwal keberangkatan bus pada ruang tunggu, tersedia media layanan pengaduan, ketersediaan fasilitas khusus dan toilet khusus penyandang difabel & lansia,  ketersediaan fasilitas khusus ruang ibu menyusui dan tersedia informasi pelayanan yang lengkap. 
ANALISA PERUBAHAN GARIS PANTAI AKIBAT BANGUNAN PENGAMAN PANTAI (GROIN) DI PANTAI SALIDO PESISIR SELATAN SUMATERA BARAT Hamidi, Wazer El; Junaidi, Junaidi; Junaidi, Ahmad; Hakam, Abdul
Rekayasa Sipil Vol 13, No 2 (2019)
Publisher : Department of Civil Engineering, Faculty of Engineering, University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.rekayasasipil.2019.013.02.7

Abstract

In 2015, the government, through the Regional Office V Sumatra River, building groynes and jetties to maintain of the Salido coastline. But development is limited to the Salido coastline, while Salido position is the one with the coastline of Sago which is located in the northwest. So, the author is interested to research whether the construction of groynes have an impact on areas that are not built and whether the groynes effective to deal with the instability of the coastline, by simulating changes in the coastline in the next 10 years. The study results also show that the groynes is effective in maintaining the stability of the Salido coastline. While the impact of groynes in areas not built is abrasion on the downstream side of the last groyne bordering the Sago coastline ± 78 meters, and the deterioration of the coastline ± 18 meters by simulating 10 years into the future. After the construction of groynes, Sago beach will no longer accreting or abrasion (accretion occurs earlier). Abrasion on the downstream side of last groins are likely to increase so that development needs to be done along the Sago shoreline.

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