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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 18 Documents
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Search results for , issue "Vol 5, No 2 (2017): Edisi Juni 2017" : 18 Documents clear
Pengaruh Bottom Ash sebagai Bahan Pengganti Sejumlah Pasir Terhadap Kuat Tekan, Kuat Lentur dan Modulus Elastistas Beton Mutu Tinggi Sholahuddin Triwidinata; Surya Sebayang; Laksmi Irianti
Jurnal Rekayasa Sipil dan Desain Vol 5, No 2 (2017): Edisi Juni 2017
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AbstractOver time the production of high strength concrete it will increse more and more and otherwise it will decrease the natural resources. One of them is sand as concrete material. Based on the problem, it will be required another material, that can replace a number of the sand. Bottom ash is one of material from waste coal plant, generally have particle size or fine granule like as sand. This research is used to determine the variation of sand and bottom ash for high strength concrete. The testing are compressive strength with cylinder concrete 10x20 cm, flexural strength with beam concrete 10x10x40 cm, and modulus of elasticity concrete with cylinder concrete 15x30 cm. The compositions of the bottom ash for substitution the sand are 0%, 20%, 40%, 60%, 80% and 100%. The results of the compressive strength and flexural strength optimum testing are showed on variation 80% of bottom ash. Compressive strength values are 39,68 MPa (7 days age) and 45,41 MPa (28 days age). Flexural strength values are 4,62 MPa (7 days age) and 5,53 MPa (28 days age). Modulus of elasticity concrete optimum are showed on variation 20% and 80% of bottom ash with 60625,67 MPa and 59441,67 MPa (28 days age).  Keywords : high strength concrete, bottom ash, compressive strength, flexural strength, modulus of elasticity concrete.   AbstrakSeiring berjalannya waktu produksi beton mutu tinggi semakin lama akan semakin meningkat dan sebaliknya akan mengakibatkan berkurangnya sumber daya alam. Salah satunya ialah pasir sebagai bahan baku beton. Berdasarkan permasalahan tersebut, maka diperlukan suatu material lain yang dapat menggantikan sebagian sumber daya alam tersebut. Bottom ash merupakan salah satu material dari limbah hasil proses pembakaran batubara pada sektor pembangkit listrik, umumnya memiliki ukuran partikel atau butiran yang halus seperti pasir. Penelitian ini dilakukan untuk menentukan penggunaan variasi pasir dan bottom ash yang baik bagi beton mutu tinggi. Pengujian berupa uji kuat tekan dengan silinder beton 10x20 cm, uji kuat lentur dengan balok 10x10x40 cm dan modulus elastisitas beton dengan silinder beton 15x30 cm. Komposisi penggantian pasir dengan bottom ash sebanyak 0%, 20%, 40%, 60%, 80% dan 100%. Hasil pengujian kuat tekan dan kuat lentur optimum diperoleh pada variasi 80%bottom ash. Nilai kuat tekan sebesar 39,68 MPa (umur 7 hari) dan 45,41 MPa (umur 28 hari). Nilai kuat lentur sebesar 4,62 MPa (umur 7 hari) dan 5,53 MPa (umur 28 hari). Nilai modulus elastisitas beton optimum diperoleh pada variasi 20% dan 80% bottom ashyaitu sebesar 60625,67 MPa dan 59441,67 MPa (umur 28 hari). Kata kunci : beton mutu tinggi, bottom ash, kuat tekan, kuat tarik lentur, modulus elastisitas beton  
Kebutuhan Material Jaringan jalan Provinsi di Provinsi Lampung Pada Wilayah 2 dan Wilayah 4 meifra wahyudi; yohanes Martono Hadi; idharmahadi Adha
Jurnal Rekayasa Sipil dan Desain Vol 5, No 2 (2017): Edisi Juni 2017
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Lampung Province is a province that annually holds improvements and infrastructure development, especially in the field of roads. By the increase of the road construction, the more material needed to meet the development.This research was conducted to know the amount of material of provincial road network of Lampung province in budget year 2016 region 2 and region 4 and to get material requirement in next year.From the collection of this data, obtained the auction pattern of project implementation began in mid-year until the end of the year. And from result of calculation of material requirement of road construction project of Lampung province in 2016 got the dominant result to use Sand, Asphalt, Aggregate Coarse, and Cement. In fulfilling the material needs of the Lampung provincial road project in 2016 region 2 and region 4 is good enough, it is shown with its fulfillment of the provincial road works material in 2016. From the analysis of the calculation of provincial road material needs in 2016 can be used as a guide to face the material needs of the following year.
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 2 (2017): Edisi Juni 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
Perbandingan Volume Kebutuhan Baja pada Pembuatan Struktur Rangka Atap Bentang 30 m Berdasarkan SNI 1729-2015 Sella Anggraini; Bayzoni Bayzoni; Hasti Riakara Husni
Jurnal Rekayasa Sipil dan Desain Vol 5, No 2 (2017): Edisi Juni 2017
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The use of steel as a framework for the roof of the warehouse building requires research on the efficiency of its volume according to the form of the frame designed by considering the strength and the economical of the building materials. In the implementation of this research the calculation of structural analysis using method of joint. The outline of the implementation step is to determine the profile data (quality and dimensions) and various controls on Gording, calculate the loading using SNI 1727-2013, calculate the structure analysis of each roof frame using Microsoft Excel, calculate the analysis of truss frame design (Tensile and press memberss), weld joint planning using SNI 1729-2015 and calculate the steel requirement volume ratio of the four types of roof truss structure. The result of the research shows that the volume of steel used in Type 1 roof truss construction is 0,2046 m3 with weight 1571,4287 kg; In Type 2 roof truss construction is 0,1862 m3 with weight 1461,5889 kg; In Type 3 roof truss construction is 0,1499 m3 with weight 1176,0578 kg; In Type 4 roof truss construction is 0,1488 m3 with weight 1167,4652 kg. Based on these results, the Type 4 is the most optimal type of roof truss construction, because the lowest volume and weight of steel was obtained. Keywords: Roof frame, SNI 1729-2015, steel, tensile member, press member
Pengaruh Kejenuhan Air Tanah Lempung Organik Menggunakan Permodelan Laboratorium Chintia Makki; Setyanto Setyanto; Lusmeilia Afriani
Jurnal Rekayasa Sipil dan Desain Vol 5, No 2 (2017): Edisi Juni 2017
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The limited area for civil construction is affecting people to make building construction upper the clay- organic. The speciment of investigation soil wasobtained in Jabung, East Lampung. The speciment of soil obtaindirect shear and vane shear modeling test usingglass box with contain ±130,730gram/ 130,7kgof soil. Direct shear test for 30 cm depth below surfaceundrained soil obtainsomeresult.The result are forshearing strain is 0,1286 kg/cm2, shearing strain of vane shear test is 0,61 kg/cm2, and the value of bearing capacity is 1,4103 kg/cm2. for 50 cm depth below surfaceundrained soilintoobtain result for shearing strain is 0.1196 kg/cm2, shearing strain of vane shear test is 0,61 kg/cm2, and the value of bearing capacity is 1,7018 kg/cm2. Direct shear test for 30 cm depth below surfacedrained soilobtain result for shearing strain is 0,1286 kg/cm2, shearing strain of vane shear test is 0,61 kg/cm2, and the value of bearing capacity is 1,0347 kg/cm2 , for 50 cm depth below surfacedrained soilobtain result for shearing strain is 0,0861 kg/cm2, shearing strain of vane shear test is 0,46 kg/cm2, and the value of bearing capacity is 1,3997 kg/cm2 From the direct shear and vane shear test, it was obtained that shearingstrain in direct shear test is lower than vane shear test. Keywords: Direct Shear Test, Vane Shear Test, Shearing Strain, The Clay-Organic, Bearing Capacity
PERENCANAAN DINDING PENAHAN TANAH PADA SUNGAI WAY HUI KABUPATEN LAMPUNG SELATAN rizki abadian nur; gatot eko susilo; sumiharni sumiharni
Jurnal Rekayasa Sipil dan Desain Vol 5, No 2 (2017): Edisi Juni 2017
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Flooding is an event that occurs when water flows water on the land, the EU defines flooding as a temporary immersion by water on land that is not normally submerged in water. Based on water sources that become reservoirs on earth, the type of flood is divided into three, namely river flood, lake flood, and flood tides. Floods that occur in some areas in Lampung are caused by overflow of water from rivers such as Way Hui rivers triggered by several things, namely garbage, river narrowing and drainage, and high rainfall. This study aims to analyze rainfall data in the study area. In addition, the plan also aims to calculate the design of rain and flood design in the study area and conduct retaining wall planning in the study area. In this study, the procedures used are data collection of rainfall and river basin data, calculation and rainfall analysis, calculation and analysis of rainfall design, calculation and analysis of rainfall intensity, calculation and design of debit analysis, calculation and analysis of slope stability, And Plan budget (RAB) budget. The results showed that the calculation of slope stability using Fellenius Method and Bishop Method. After the calculation, the security number (FK) of 1,317 for the Fellenius Method, and the security number (FK) for the Bishop Method is 1.351. With these results, the FK> 1 qualified safe is for the planning of retaining wall in Way Hui river. Then the authors calculate the cost budget plan (RAB) to build the retaining wall of the land and obtained a price of about Rp. 428.215.506,00. Keywords: flood, slope stability, flood dischargeAbstrakBanjir adalah peristiwa yang terjadi ketika aliran air merendam daratan, Uni Eropa mendefinisikan banjir sebagai perendaman sementara oleh air pada daratan yang biasanya tidak terendam air. Berdasarkan sumber air yang menjadi penampung di bumi, jenis banjir dibedakan menjadi tiga, yaitu banjir sungai, banjir danau, dan banjir laut pasang. Banjir yang terjadi disejumlah daerah di Lampung yang disebabkan oleh meluapnya air-air dari sungai seperti sungai Way Hui yang dipicu oleh beberapa hal, yaitu sampah, penyempitan sungai dan drainase, serta curah hujan yang tinggi.Penelitian ini bertujuan untuk menganalisa data hujan pada daerah studi. Selain itu, perencanaan ini juga bertujuan untuk melakukan perhitungan hujan rancangan dan banjir rancangan pada daerah studi dan melakukan perencanaan dinding penahan tanah pada daerah studi tersebut. Pada penelitian ini prosedur yang digunakan adalah pengumpulan data hujan dan data DAS, perhitungan dan analisa hujan kawasan, perhitungan dan analisa hujan rancangan, perhitungan dan analisa intensitas hujan, perhitungan dan analisa debit rancangan, perhitungan dan analisa stabilitas lereng, dan rencana anggaran biaya (RAB). Hasil penelitian menunjukkan bahwa perhitungan stabilitas lereng menggunakan Metode Fellenius dan Metode Bishop. Setelah dilakukan perhitungan maka diperoleh angka keamanan (FK) sebesar 1,317 untuk Metode Fellenius, dan angka keamanan (FK) untuk Metode Bishop sebesar 1,351. Dengan hasil tersebut maka memenuhi syarat aman yaitu FK > 1 untuk perencanaan dinding penahan tanah pada sungai Way Hui. Kemudian penulis menghitung rencana anggaran biaya (RAB) untuk membangun dinding penahan tanah tersebut dan diperoleh harga sekitar Rp. 428.215.506,00  Kata kunci : banjir, stabilitas lereng, debit banjir
Analisis Desain Pondasi Rakit untuk Bangunan Bertingkat dengan Metode Konvensional Dhyna Annisa Maghfira Bahagianda; Setyanto Setyanto; Idharmahadi Adha
Jurnal Rekayasa Sipil dan Desain Vol 5, No 2 (2017): Edisi Juni 2017
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The foundation of the building is usually divided into two parts: shallow foundation and deep foundation, depending on the location of hard soil and the depth ratio with the width of the foundation (D ≤ B). The foundation of this raft serves to mediate the surface of one or more columns within several lines or paths with the ground. The use of the raft foundation is used when the decline is a problem eg in soft soil. The foundation of raft becomes alternative choice seen from external factor that is implementation process which do not give impact to surrounding environment or building around it. In this study conducted data collection obtained from the results of laboratory tests in the form of data sondir results, SPT results and data in the form of load structures and field load tests and building analysis load. From the laboratory results and the subsequent building load, the calculation of the force field with the SAP 2000 program, calculate the maximum carrying capacity of the raft foundation under review, calculate the decline of the raft foundation and obtain the result of the structural requirements of the raft foundation. Based on the results of the analysis in this study found the carrying capacity of soil for raft foundation of 907.643 kN/m2. While the maximum voltage distribution at the base of the raft foundation due to the load and moment is 38.0696 kN/m2.  Keywords: Raft Foundation, Bearing Capacity, Reinforcement
Simulasi Penggunaan Program Geostudio Slope/W 2007 dalam Menganalisis Stabilitas Lereng Dengan Jenis Tanah Lempung Berpasir pada Kondisi Tidak Jenuh, Kondisi Jenuh Sebagian, dan Kondisi Jenuh yota pentawan; Lusmeilia Afriani; Amril Ma'ruf Siregar
Jurnal Rekayasa Sipil dan Desain Vol 5, No 2 (2017): Edisi Juni 2017
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Landslide is a natural disaster that often occurs in Lampung Province, particularly in WestLampung regency. The sliding occurs due to an increase in soil pore water stress in the rainyseason. Based on the research on the slopes, there is a safety factor value that can be used as areference for the degree of slope stability. One method to analyze the value of slope safety factoris by using the Geostudio Slope / W 2007 program.In this study, some cross sections of slope were simulated with 4 different water table conditions.The required soil properties index are: cohesion, c; natural angle of repose, φ; and unit weight ofdensity, γ .The analysis result shows that slope transversal cut shape have influence on slope stability. Theanalysis results on slopes with saturated conditions have a safety factor value of <1.25 and areclassified on unsafe slopes. In the unsaturated condition the whole simulation is classified as astable slope with a safety factor value> 1.25. Based on the analysis result, it can be inferred thatthe slope has insecured status. Thus, it is suggested to conduct such actions in order to preventlandslide.Key words : soil, slope stability, safety factor, geostudio slope/w.
THE INFLUENCE OF THE ADDITION OF RICE HUSK ADDITIVES AND MATOS TO THE VALUE OF CBR (CALIFORNIA BEARING RATIO) OF CLAY SOIL IN TERMS OF CURING TIME Sindu Abadi Sampurna; Iswan Iswan; Ahmad Zakaria
Jurnal Rekayasa Sipil dan Desain Vol 5, No 2 (2017): Edisi Juni 2017
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Soils have different types and different carrying capacity. One of them is clay soil that has the low carrying capacity. Viewed from the rapid development of infrastructure in Indonesia, does not rule out the possibility that the infrastructure built in areas with clay soil types. Given the small carrying capacity of the clay, the soil should be improved in order to support the development of a construction.soil improvement with an additional mixture of rice husk ash and matos as stabilizer can improve soil quality. This research was conducted with rice husk ash mixture of 6%, 8%, 10%, and 12% and matos with level 3,3898% gr. Then, curing for 7 days, 14 days, 21 days, and 28 days without immersion. Soil that used in research is from Sidomulyo, South Lampung is a type of clay soil that belongs to the A-7-5 group based on the AASTHO classification. Research in laboratory showed that 28 days of curing with 12% rice husk ash mixture had the highest CBR value from other curing durations. Soil clay CBR value increased from 7.3% to 31.8%. This shows that the ash mixture of rice husk and matos is quite effective in increasing the carrying capacity of clay soil. Keywords : Matos, CBR, Rice Husk Ash
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

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