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Kota bandar lampung,
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INDONESIA
Jurnal Rekayasa Sipil dan Desain
Published by Universitas Lampung
ISSN : 23030011     EISSN : 27150690     DOI : -
Core Subject : Engineering,
Civil Engineering, Building, Construction & Architecture
Arjuna Subject : -
Articles 840 Documents
 9   10   11   12   13 
Pengaruh Penambahan Serat Kawat Bendrat pada Beton Mutu Tinggi terhadap Kapasitas Kuat Tekan dan Kuat Lentur Krisna Bagus; Eddy Purwanto; Bayzoni Bayzoni
Jurnal Rekayasa Sipil dan Desain Vol 6, No 2 (2018): Edisi Juni 2018
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Abstract

Concrete is one of the construction materials that has the advantage of being able to withstand a high compressive strength but has a low tensile strength.To overcome the weaknesses that exist in the concrete, one of the efforts applied is to add fiber in the form of bendrat wire in the concrete in order to increase the tensile strength and flexural strength of concrete. The specimens of this research are concrete cylinder with diameter 15 cm and height 30 cm and concrete beam object with dimension of length, width and height 60 cm, 15 cm, and 15 cm respectively. Tests were performed at 28-days of concrete. While the addition of bendrat wire fiber is done based on the percentage of volume fraction (Vf) addition to the volume of concrete by 0%; 0,299%; 0,695%; and 0,990%. Each variation was made 9 test specimens consisting of 6 cylinders and 3 beams.The average compressive strength in high quality concrete without bendrat wire has the highest value of 50,0118 MPa. For the average compressive strength value at Vf 0.299%, 0.695%, and 0.990% were 42,2741 MPa, 41,8967 MPa and 39.6320 MParespectively. While for splitting strength and flexural strength in high quality concrete with volume fraction (Vf) 0,990% has the highest value with the splitting strength of an average of 4,6945 MPa and the average flexural strength of 7,9133 MPa Keyword : High quality concrete, bendrat wire fiber
Korelasi Kuat Tekan Bebas dengan Kuat Geser Langsung pada Tanah Lempung yang dicampur dengan Zeolit M. Iqbal Hermawan; Lusmeilia Afriani; Iswan Iswan
Jurnal Rekayasa Sipil dan Desain Vol 3, No 1 (2015): Edisi Maret 2015
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This research was conducted to determine the effect between zeolite and clay of compressivestrength and shear strength. Construction founded on clay will cause some impact, such as lack ofcompressive strength and shear strength. Therefore, before the construction of structures on theclay, the clay must be stabilized first. In this research, soil stabilization using zeolite.Based on the results of this research there was an increase in the compressive strength of clay by94,5 % from 0,2975 kg/cm 2 be 0,5787 kg/cm 2 , and improving the clay cohesion of 54,17 % from0.24 kg/cm 2 be 0,36 kg/cm 2 , and the increase in the maximum shear strength of 43,89 % of 0.4754kg/cm 2 be 0,6841 kg/cm 2 , the additon of zeolite until 10%. From these values it can be concluded,compressive strength and shear strength increases as a percentage addition of zeolite, althoughthe increase that occurred in the unconfined compressive strength and direct shear strength is notas great.Keywords : Clay, Zeolite, Uncofined Compressive Strenght, Shear Strenght
Pengaruh Pintu Keluar Mall Bumi Kedaton dan U Turn Sebelum Lintas Jalan Rel di Jalan Sulta Agung (Studi Kasus Simpang Jl. Teuku Umar – Jl. ZA. Pagar Alam – Jl. Sultan Agung) M. Abi Berkah Nadi; Dwi Herianto; Syukur Sebayang
Jurnal Rekayasa Sipil dan Desain Vol 3, No 2 (2015): Edisi Juni 2015
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This research used primary data and secondary data. The primary data is obtained from the directsurvey result in the form of geometry data, environmental condition data, traffic flow, signaltiming, and long queues. Secondary data consists of the population in Bandar Lampungat 2012that is get from BPS Lampung Province. Data analysis is used the Indonesian Manual HighwayCapacity in 1997 for Signalized Intersections. Based on calculations, it can found that theintersection level of service at aftrenoon peak hour was F with a delay amount 61,50sec/pcu, levelof service at evening peak hour was F with a delay amount 88, 20sec/pcu, and level of service atnight peak hour was F with a delay amount 60, 29sec/pcu. Similarly, with the U Turn result canobtained the intersection level of service at afternoon peak hour was B, level of service at eveningpeak hour was B, and level of service at night peak hour was A.It indicates that the performance ofintersectionis not optimal. To increase the performance of the intersection, need make a changesin the pattern of setting time control become the pattern of not setting time control based on thepeak condition by changing the cycle time, green time, and inter green time. And therecommendation needed for the handling of openings U Turn on Jl. Sultan Agung.Keywords : signalized intersection, delay, performance, U Turn
Evaluasi Perancangan Balok Beton Bertulang dengan Menggunakan Metode Elemen Hingga fazadina alia; bayzoni bayzoni; eddy purwanto
Jurnal Rekayasa Sipil dan Desain Vol 4, No 4 (2016): Edisi Desember 2016
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Perancangan balok dilakukan sedemikian rupa agar tidak menimbulkan retak berlebihan pada penampang sewaktu mendukung beban kerja dan tegangan lebih lanjut tanpa mengalami keruntuhan.  Agar tidak terjadi keruntuhan tersebut, batang balok sebagai bagian dari sistem yang menahan lentur harus kuat untuk menahan tegangan tekan dan tarik pada balok tersebut.  Oleh karena itu dalam teknik sipil klasik, penyelesaian analisis tegangan struktur di pakai metode-metode seperti kemiringan lendutan (slope deflection) dan distribusi momen namun di teknik sipil modern ini terdapat metode baru yaitu metode elemen hingga dengan prinsip dikritisasi yang membagi suatu benda menjadi benda-benda yang berukuran lebih kecil agar lebih mudah pengelolaanya.Tujuan dari penelitian ini adalah untuk mendapatkan tegangan yang diterima balok beton bertulang dengan menggunakan metode elemen hingga sehingga bisa mendapatkan suatu evaluasi perancangan balok beton bertulang dengan membandingkan tegangan yang di terima antara menggunakan metode konvensional dengan metode elemen hingga. Dari perhitungan yang telah dilakukan menunjukkan bahwa nilai pembesaran defleksi arah y (vertikal) lebih besar dibandingkan dengan nilai pembesaran defleksi arah x (horizontal), hal ini terjadi karena pengaruh dari beban vertikal yang diberikan dan juga konfigurasi balok yang digunakan dari struktur yang simetris.  Tidak hanya itu dari hasil analisis tegangan pada tulangan dan pada beton di balok beton bertulang dengan menggunakan metode elemen hingga memiliki nilai yang lebih kecil bila dibandingkan dengan nilai fy dan  f’c pada metode konvensional.  Hal ini menunjukkan bahwa balok beton bertulang tersebut dapat menahan beban yang lebih besar dari pada nilai beban yang digunakan dalam perancangan balok bertulangan rangkap.Kata Kunci: Beton bertulang, Balok, Metode elemen hingga, Tegangan 
Pengaruh Waktu Perendaman Terhadap Uji Kuat Tekan Paving Block Dengan Campuran Tanah, Pasir Dan Semen Menggunakan Alat Pemadat Modifikasi Restu Agusni; Setyanto Setyanto; Iswan Iswan
Jurnal Rekayasa Sipil dan Desain Vol 5, No 3 (2017): Edisi September 2017
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Paving blocks are compositions of building material constructed from a mixture of Portland cement or other similar hydrolysis, water, and aggregate with or without other additives which do not reduce the quality of the material. Paving blocks in the field are made of cement, sand, aggregate, and water by mixing all the ingredients and form the paving blocks. In this research, the paving blocks are made of the mixture of soil, sand, and cement. In the process, the paving blocks are compacted by a modified penetration tool in order to improve the paving blocks quality in accordance with SNI-03-0691-1996.The soil samples used in this research were from Kota Baru, Lampung Selatan. The amount of mixture used for making the paving block was 75% of soil, 10% of sand and 15% of cement. The variations of curing time were 7 days, 14 days, 21 days and 28 days as well as with pre and post burning treatment on the paving block samples.The results of the compressive strength test to the paving blocks which are made of soil, sand, and cement showed that the cement and sand do not meet the standard of SNI 03-0691-1996 for the paving block classification because the highest compressive strength value is obtained by the paving blocks with pre and post burning treatment on the variation mixture of 75% soil, 10% sand, and 15% cement with the value 7,65 MPa and 7,25 MPa. The result of water absorption value which was between 16,6% - 25,4% do not meet the specification in SNI-03-0691-1996.Keywords: Paving block, silt, compressive strength, water absorption
Analisis dan Perencanaan Sistem Drainase di Lingkungan Universitas Lampung (Studi Kasus Zona I : Fakultas Teknik, Fakultas Ekonomi dan Bisnis, Fakultas Ilmu Sosial dan Politik, Fakultas Hukum) Jamaludin HN, .; Purwadi, Ofik Taufik; Zakaria, Ahmad
Jurnal Rekayasa Sipil dan Desain Vol 6, No 2 (2018): Edisi Juni 2018
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University of Lampung as one of the first and oldest public university in Lampung Province is one of the best universities in the region of Sumatra and continuously improve the quality of its academic, with the Accreditation A. Enhancement and infrastructure facilities university of Lampung continue, so can improving the academic quality or non-academic. The form of non-academic quality improvement is the environmental arrangement of one of its plans development of drainage system. This is intended to solve some of the flooding puddles that occurred at the time rainy season arrives because not optimal condition of existing drainage in University of Lampung region . The analysis conducted in this research includes hydrology analysis and hydraulics analysis using HEC-RAS 4.1.0 application. Hydrology analysis aims to calculate the design discharge using rational methods and modeling with HEC-RAS 4.1.0 application aims to determine the capacity of the water level existing channel. So it can be known where the position of the flood point and planning the new channel dimensions. Based on the analysis, the need for planning new drainage at some point indicating the occurrence of run off and inundation at Kantin Teknik Prasmanan. Planning of absorption wells and retention ponds is also very needed to overcome the problem of frequent flooding in Faculty of Engineering. It is also necessary to maintain channel maintenance in the form of channel normalization, garbage retaining lattice installation, and periodic cleaning of channels.Keywords: hydrology, hydraulics, HEC-RAS 4.1.0, drainage, absorption wells, andretention ponds.
Study System Drainase di Fakultas Teknik Universitas Lampung Riko Berli Ardian; Ahmad Zakaria; Gatot Eko Susilo
Jurnal Rekayasa Sipil dan Desain Vol 4, No 3 (2016): Edisi September 2016
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Penelitian ini dilakukan untuk mengetahui bagaimana sistem drainase yang ada apakah sudah optimal dan bagaimana pula kapasitas saluran yang ada apakah masih memadai atau tidak .Pada pelaksnaannya dilakukan analisis hidrologi dan hidrolika. Analisis hidrologi menggunakan data curah hujan maksimum setelah itu dilakukan pengukuran dispersi melalui perhitungan parameter statistik. Dilanjutkan dengan pemilihan jenis distribusi untuk  mendapatkan cara mengolah data pengukuran curah hujan rencana dan perhitungan intensitas hujan.  Analissis hidrolika berupa kapasitas debit drainase eksisting, setelah itu di buat sistem dan dimensi yang sesuai.Hasil penelitian berdasarkan pengukuran dispersi diperoleh distribusi yang cocok adalah Distribusi Log Pearson III dan diperoleh nilai curah hujan rencana untuk kala ulang 2 tahun sebesar 101,7983739 mm  Koefisien pengaliran pada DAS diperoleh sebesar 0,8961 dengan luas DAS 501,32 m2. Nilai debit hujan untuk kala ulang 2 tahun dengan metode rasional diperoleh nilai 2,1172 m3/detik   Nilai Qhujan adalah 2,1172 m3/detik sedangkan nilai Qteoritis adalah 0,0833 m3/detik. Karena Qhujan lebih besar daripada Qteoritis, dapat disimpulkan bahwa saluran drainase eksisting sudah tidak cukup lagi untuk menampung debit banjir yang ada.   Kata kunci : drainase, analisis hidrologi , analisis hidrolika , distribusi log                           pearson III, koefisien pengaliran, debit.
Evaluasi Kinerja Angkutan Massal Bus Rapid Transit Pada Koridor Rajabasa - Sukaraja Nurfadli Muhammad; Dwi Heriyanto; Priyo Pratomo
Jurnal Rekayasa Sipil dan Desain Vol 3, No 2 (2015): Edisi Juni 2015
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The growing population and the increasing economic growth in the city of Bandar Lampung haveled to expanding geographic mobility within the city. The provision of a mass transit system,therefore, is vastly indispensable for anticipating high traffic densities. This study was trying toexamine whether the operational performance of trans-Bandar Lampung buses, or called “BusRapid Transit” (BRT), has conformed to the existing standards. The results are expected to betaken for consideration by the municipal government when adopting policies to improve BRT’soperational performance and to scale back traffic jams.The study focused only on one corridor, the Rajabasa-Sukaraja corridor, and used the World Bank(1986) standards as the reference. Observations were then made in three days: Monday andThursday to represent workdays, and Sunday to represent days off, with each observation dayspanning from 6.00 a.m. to 6.00 p.m.The results reveal that time headway, 6.29 minutes (on the Rajabasa-Sukaraja corridor), and tripspeed, 25.45 km/h, have met the World Bank’s standards. However, traveled distance, 112.36 kmper vehicle, and load factor, 20.53%, are below the given standards. This low load factor has led tosmall revenue per vehicle, i.e. only Rp346,503.56. Dividing the amount by the operating cost(operating ratio) per vehicle gives us a value of 0.7 (less than 1). In other words, the BRT systemhas been operating at a loss.In the final analysis, it is vital that the municipal government take strategic policies to reduce thenumber of minibuses, or angkot, that operates on the same corridor as the BRT buses’, so thatmore passengers will shift to these BRT buses. The government should also grant subsidiesimmediately to make up for the loss currently being suffered by this BRT.Keyword : BRT, trans-Bandar Lampung bus, Rajabasa, Sukaraja, time headway, load factor.
Perencanaan Pintu Pelimpah Bendungan Margatiga Kabupaten Lampung Timur Provinsi Lampung Lidya Susanti; Eddy Purwanto; Endro Prasetyo Wahono
Jurnal Rekayasa Sipil dan Desain Vol 5, No 2 (2017): Edisi Juni 2017
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AbstractSpillway has an important role for both operating rules as well as a safety structure, particularly during flood, of a dam. In Margatiga Dam, gated-spillways were designed in order to regulate discharge to downstream mainly for irrigation purpose. The Margatiga Dam, located in East Lampung Regency, is a rock fill type of dam with vertical core, formed from specific clay materials. The dam was designed to supply the Sragi’s irrigation area mostly located in East Lampung Regency, which has more than 80% of its citizen are farmers. The main objective of this research is to design gate leaf structure of the spillway, in the form of skin plates and beams that fulfill safety requirement of the structure. Design was performed for two conditions, which are during normal water level, and during the flood conditions. Based on those two conditions, the most extreme forces was selected as the basis of the structural design. The loads, which are used for design, consist of hydrostatic pressure, sediment pressure, dynamic pressure during the earthquake, and the hydrodynamic pressure. This research provide dimension of the gate leaf of the concerned spillway. Thickness of the steel plates is 13 mm, meanwhile the dimension of girder plates are 900x300 mm, 860x100 mm, and 900x150 mm, for the horizontal beams, vertical beams, and the edge of the beams respectively. Thickness of flense and web for all the beams are designed to be 13 mm and 5 mm respectively. Design of the gate provide maximum deflection of the beams for 10.06 mm and maximum deflection of the plates is 5.16 mm, which are considered to fulfill the safety requirement for the conditions during probable maximum discharge (QPMF).Keywords : spillway, gate leaf, QPMF, girder plate
ANALYSIS OF SLOPES STABILITY WITH CANTILEVER RETAINING WALLS AND GEOTEXTILE STRENGTHENING ON LIWA CROSS ROAD - INTERSECTION OF KEMALA MOUNTAIN KM. 268 + 550 Septian Adi Saputra; Idharmahadi Adha; Yohanes Martono Hadi
Jurnal Rekayasa Sipil dan Desain Vol 5, No 1 (2017): Edisi Maret 2017
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Liwa Cross Roads – Intersection of Kemala Mount KM.268 + 550 is located on the hills of TNBBS Lampung which geographic conditions consists of cliffs and ravines are quite steep, so prone to sliding. This is certainly very harmful to the building and the road users around the slopes so that necessary alternative solutions that could make the slopes safe from the danger of landslides. One way is to build reinforcement construction on a slope such as geotextiles and cantilever retaining wall. In analyzing of the slope stability used a computer program, that is SLOPE/W, is used to calculate the safety factor accurately in a short time. Existing slope stability analys with the program SLOPE/W Bishop methods in wet and dry conditions obtained value of safety factor 0.433 and 0.4. These results prove the structure of the slopes is not safe, it is needed solutions to handle slope sliding that has a stable numerical secure slope value by using woven geotextile reinforcement by the number of 16 layers, tensile capacity 200 kN/m, cohesion 3 kPa and the friction angle of the soil 38o, vertical distance 2 m and a cantilever concrete retaining wall that has a height 15 m with a specific gravity 25 kN/m3, the compressive strength of concrete plans (f'c) 30 MPa and a tensile strength steel (fy) 400 MPa. Pile soil used to improve slope geometry made to reduce the slope. The results of slope sliding stability analysis, reinforced with geotextile using SLOPE/W obtained value of safety factor 1,332, while reinforced with cantilevered retaining wall at 1.852. For the analysis of external stability by geotextiles strengthening obtained bolsters safety factor 5.9479, shear stability 3.3531 and carrying capacity 3.4815, while the cantilevered retaining wall reinforcement obtained stability bolsters safety factor 6.0643, shear stability 2.2346 and carrying capacity 3.1828. Key words: Slope stability, stability of retaining walls, Geotextile, SLOPE/W.

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