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Kota bandar lampung,
Lampung
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 545 Documents
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Studi Analisis Daya Dukung Tanah Lempung Berplastisitas Tinggi yang Dicampur Zeolit Alfian, Rian; Afriani, Lusmeilia; Iswan, Iswan
Jurnal Rekayasa Sipil dan Desain (JRSDD) Vol. 3 No. 2 (2015): Edisi Juni 2015
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v3i2.455

Abstract

C lay has properties that are not profitable for construction. This is because the bearing capacityof the soil or low CBR have low value. Therefore we need a stabilizing agent that can reduce soilproperties which are unprofitable, usually accompanied by binding to each soil grain with theother .The research was done by testing on clay samples without a mixture and the clay that is mixedwith zeolite with a variation of 6%, 8%, 10%, 12% and 14%. Tests were performed using standardand modified compaction which previously done curing for 14 days. After compaction test, thesamples were soaked for 4 days and then followed by mechanical testing which is CBR test thataimed to determine the bearing capacity value of the soil after the sample was mixed by zeolites.Based on the results of laboratory research, the highest value obtained on the sample CBR claywith a mixture of 14% zeolite with the use of modified compaction with 14 days of curingand 4days of soaking in the amount of 2.78%. This is because the effect of zeolite which can bind clayparticles. So, the more a mixture of zeolite then bearing capacity of the soil also increasing.However, the value of CBR in this research can not be used as subgrade in road constructionbecause of its CBR value ≤ 6%.Keywords: CBR, Soil Clay, Zeolite
Pengaruh Kuat Tekan dan Kuat Geser pada Sampel Dry Side of Optimum (Optimum Kering) dan Wet Side of Optimum (Optimum Basah) Tanah Organik Setiawan, Ade; Iswan, Iswan; Setyanto, Setyanto
Jurnal Rekayasa Sipil dan Desain (JRSDD) Vol. 3 No. 2 (2015): Edisi Juni 2015
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v3i2.456

Abstract

Organic soils causing many problems for the construction to be built on it, is generally caused bythe physical properties of organic soils that have a very high water content and low carryingcapacity, so that organic soils have less favorable properties for the construction of civil buildings.In this case, there should be a study of compressive strength and shear strength.This research wasconducted in the laboratory by making a sample of the results of a standard compaction, then thesample is done in Optimum condition Dry side of optimum and Wet side of optimum. On the DrySide Of Optimum process, sample was given a reduction of 10% of the optimum water content,while the Wet Side Of Optimum given the addition of 10% of the optimum water content, then thesample is done soaking for 4 days after compaction testing standards.The test results ofcompressive strength and shear strength shows a sample of soil behavior in an Optimumconditions better than the sample in Dry Side Of Optimum conditions and Wet Side Of Optimum.This is due to the pores of the soil Optimum conditions experienced stability and development ofthe soil is very minimum to occurs. Compressive strength and shear strength test is to measurehow strong soil receiving compressive strength and shear strength given to the soil separated fromthe grains.Keywords: Organic Soil, Dry Side Of Optimum, Wet Side Of Optimum, Optimum, CompressiveStrength and Shear Strength
Kepadatan Campuran dengan Variasi Tumbukkan Terhadap AC-WC Gradasi Halus Yuliansyah, Yuliansyah; Ali, Hadi; Pratomo, Priyo
Jurnal Rekayasa Sipil dan Desain (JRSDD) Vol. 3 No. 2 (2015): Edisi Juni 2015
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v3i2.457

Abstract

This study was conducted to determine the effect of variations in the compaction of thecharacteristics of the asphalt layer using the Marshall method which refers to the buildingspecifications of bina marga 2010. In the Marshall plan establishes parameters for the number ofcompaction of heavy traffic conditions compaction test specimen as 2x75 compaction with thecavity boundary mixture of 3,5- 5.5%. While on the asphalt concrete layer is studied AsphaltConcrete Wearing Coarse (AC-WC) subtle gradations lower limit.After the results of the testing materials testing both asphalt and aggregate meets the standardsand then do the manufacture asphalt mixture specimen. From the analysis of the value obtainedafter calculating the optimum asphalt content lower limit of 6,8%. Then used in mixing asphaltcontent for the variation of the collision is 2x50, 2x55, 2x60, 2x65, 2x70, 2x75, 2x80, and 2x85.After it was examined Marshall.From the test results on compaction Marshall 2x50, 2x55, 2x60, 2x65, and 2x70. Does not meetthe Marshall parameter value because Marshall Quotient (MQ) does not enter the specifications.While the value of voids In The Mix (VIM) in the collision 2x50, 2x55, 2x60, 2x65, and 2x70 arealso not included in the specification. Only on compaction of 2x75, 2x80 and 2x85 that meet theparameters of Marshall.Keywords : Compaction, Asphalt Concrete - Wearing Course (AC-WC) Subtle Gradation,Marshall Parameters, Bina Marga Specifications 2010.
AC-WC Mixed Characterstics With Temperature Version of Mixing Rainal, Rainal; Pratomo, Priyo; Sulistiyorini, Rahayu
Jurnal Rekayasa Sipil dan Desain (JRSDD) Vol. 3 No. 2 (2015): Edisi Juni 2015
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v3i2.458

Abstract

This study was conducted to determine the effect of temperature variations on the mixing processof the hot mix asphalt (hot mix asphalt) to Marshall parameters with reference to the specificationof Bina Marga, 2010.Variations in mixing temperature 125 o C, 135 o C, 145 o C, 155 o C, 160 o C AC-WC layer smoothgradations center limit with asphalt content of 5.7%, at a mixing temperature of 125 oC does notmeet the Bina Marga specifications, because the value of the air voids in the mix (VIM) at atemperature of 125 o C at 5.611%, which exceeds the minimum standards at 3.5% to 5%. As for thetemperature variation of 135 o C to 160 o C mixing has met the minimum value of the Marshallparameter. Next to the mixing temperature variations upper limit 6.8% asphalt contenttemperatures are not eligible to be in a temperature of 125 o C. Due to a temperature of 125 o Cvalue of the cavity filled with asphalt (VFA) of 62.718% below the minimum standard value that isequal to 65%. As for the value of air voids in the mix (VIM) which exceeds the minimum value of5% is in the temperature 125 o C, 135 o C, 145 o C which each value by 7.778%, 6.8919%, 6.2490%,and then at a temperature of 160 o C for 3 , 1429% of the value below the minimum value of 3.5%.Only at a temperature of 155 o C which meet Marshall parameter values.Keywords : Temperature, Asphalt Concrete-Wearing Course (AC-WC), Marshall Parameter ,BinaMarga Specification 2010.
Hubungan Batas Cair dan Plastisitas Indeks Tanah Lempung yang Distabilisasi dengan ISS 2500Terhadap Nilai Kohesi pada Uji Geser Langsung dan Uji Tekan Bebas Manik, Markus; Iswan, Iswan; Jafri, Muhammad
Jurnal Rekayasa Sipil dan Desain (JRSDD) Vol. 3 No. 2 (2015): Edisi Juni 2015
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v3i2.459

Abstract

Along with the times, human need a better means and facilities. This make human have no choicebut to build a building or civil structure upon improper area, for example, build it on clay area.The clay is a cohesive soil which often undergoing a swelling-shrinking event in its subgrade. So,it needed to to carried out the stabilization, one of which is using ISS 2500, and research of liquidlimit and plasticity index to know about their relationship with its cohesion in-depth study.Thesample was taken from Margakaya village and Palputih village, District of Jati Agung, SouthLampung and Blimbing Sari village, District of Jabung, East Lampung. The soil tested at originalcondition and mixed by ISS2500 with three variation of mixture, that is at 0,6 ml, 0,9 ml, and 1,2ml. Mixing is conducted based on optimum moisture content of each kind of soil. Mechanicaltesting which is unconfined compressive test and direct shear test, using three sample for everysoil and every mixture variation.Test result show that the more volume of solution added into soil1, soil 2 and soil 3, then it will increase value of soil cohesion (c), maximum stress (qu). Mixing ofthe ISS 2500 resulted liquid limit (LL) of clay be between 42% - 47% .Keywords: cohesion, direct shear test, liquid limit, plasticity index, unconfined compressive test
Hubungan Batas Cair dan Plastisitas Indeks Tanah Lempung yang Disubstitusi Pasir Terhadap Nilai Kohesi Tanah pada Uji Direct Shear Ramadhani, Taufik; Iswan, Iswan; Jafri, Muhammad
Jurnal Rekayasa Sipil dan Desain (JRSDD) Vol. 3 No. 2 (2015): Edisi Juni 2015
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v3i2.460

Abstract

The Clay has a low shear force properties, large density, small permeability coefficient and has alow bearing capacity. To increase the bearing capacity of the clay can be used a mixture of sand.In this study, the test is done by using the Direct Shear test, which will be a reference in relation ofliquid limit and plasticity index to the value of cohesion (c) of each soil sample that has beensubstituted with sand.Soil samples used an original soil samples and disturbed soil of clay that comes from threelocations: the area Margakaya Jati Agung South Lampung, Palputih Karang Anyar SouthLampung , and Belimbing Sari Jabung East Lampung. Clay will be mixed with sand No.40 sieve(0.43 mm) in accordance with the required percentage of the variation in sand content of 0%, 5%,10%, and 15%.Based on AASHTO classification system, the three of soil include to the class of ordinary clay soilup to bad as subgrade material. The addition of sand mixture into three types of clay causingdecreased shear strength. The greater the addition of sand content, then the value of cohesion (c),liquid limit and plasticity index of the soil will decrease and shear angle will increase.Keywords : shear strength, Atterberg limits, Clay, Sand .
Analisis Hidrologi dan Hidrolika pada Saluran Drainase Ramanuju Hilir Kotabumi (Menggunakan Program HEC-RAS) Mustofa, Muhammad Jazuli; Kusumaastuti, Dyah Indriana; Romdania, Yuda
Jurnal Rekayasa Sipil dan Desain (JRSDD) Vol. 3 No. 2 (2015): Edisi Juni 2015
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v3i2.461

Abstract

The calculation is done using the rainfall data obtained from BMKG Kotabumi North Lampung,from 1998 until 2011 with time increment in minutes. The Log Pearson III method is used to findthe design rainfall with return period 2 years, 5 years and 10 years. Then the result isimplemented in the Intensity-duration-frequency (IDF) curves. Time of concentration is linked intothe IDF curves to determine rainfall intensity. Based on the calculated rainfall intensity, thedesign discharge for each return period can be calculated using the rational method.The values of design discharge are then inputted as upstream boundary condition in HEC-RAS.Model output are presented in cross and long section to determine at which return period thedrainage capacity is overflowed. Simulation using HEC-RAS were also done to determine thechannel capacity.Based on the results of this research, it can be concluded that rainfall intensities are 52,6918mm/hour, 65,7820 mm/hour and 75,9032 mm/hour, for 2, 5, an 10 year return period respectively.The capacity of the drainage channel is 2.02 m 3 /hour and is expected to be exceeded on 5 yearsreturn period.Key words : Intensity, Rasioanal method, HEC-RAS, capacity
Brick's Power Dimension Study Using Fly Ash Additive (Fly Ash) Based on SNI Syaputri, Wenny Dwi Tiara Ayu; Adha, Idharmahadi; Setyanto, Setyanto
Jurnal Rekayasa Sipil dan Desain (JRSDD) Vol. 3 No. 2 (2015): Edisi Juni 2015
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v3i2.462

Abstract

The bricks are made from a mixture of soil and water. In this study, the brick-making process willtry to mix the soil with additives (additive) which is fly ash brick (fly ash) to determine how muchbenefit the waste of the additive materials and compare the compressive strength of ordinary brickby brick that has been mixed with additive materials such as fly ash to achieve SNI specificationbricks that’s strong and durable.Soil sample used is a type of clay that comes from the village Yoso Mulyo, Metro. Additivematerials used are fly ash from power plants Tarahan. The variation of dimension used are 4cm x4cm x 4cm, 5cm x 5cm x 5cm, 6cm x 6cm x 6cm, 7cm x 7cm x 7cm. On dimension of 7 cm x 7 cmx7 cm the average compressive strength value is 58,46 cm 2 this is the best compressivestrength.Thus testing the bricks that have been made through the process of mixing, curing andburning, do include specific gravity test compressive strength and water absorption test. Based onthe results of physical testing of the original soil, soil samples Unified system classifies as a fine-grained soil and belongs to the group MLThe results showed that the brick-making post-combustion by using the addition of fly ash as anadditive in a mixture of brick-making material effect on the addition of compressive strengthvalues, so that the power on brick obtained in this study is quite good and meet establishedstandards of the National Standardization Agency for Indonesia (BSNI). The high value of thecompressive strength of the brick using fly ash additive materials due to reduced air volume andpore cavities in the soil particles are filled.Keywords: bricks, fly ash additive, compressive strength
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) Nadi, M. Abi Berkah; Herianto, Dwi; Sebayang, Syukur
Jurnal Rekayasa Sipil dan Desain (JRSDD) Vol. 3 No. 2 (2015): Edisi Juni 2015
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v3i2.463

Abstract

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
Perancangan Struktur Apartement 20 Lantai Bandar Lampung Alim, Fauzil; Bayzoni, Bayzoni; Husni, Hasti Riakara
Jurnal Rekayasa Sipil dan Desain (JRSDD) Vol. 3 No. 2 (2015): Edisi Juni 2015
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v3i2.464

Abstract

Bandar Lampung is one of the cities in Indonesia, which is being developed at this time. Thesedevelopments will affect population and workforce. The flurry will make the work of the public donot have much free time to prepare for daily needs. Condition, situation, and the state of society asthis causes them to prefer a place that provides various kinds of necessities of life (one stopservice).This apartment structure design project at the Teluk Betung which consists of 20 floors has 620rooms with various types and consists of Type A (230 m2), Type B (152 m 2 ), Type C (135 m 2 ), TypeD (120 m 2 ), Type E (98 m 2 ), Type F (73 m 2 ) and Type G (54 m 2 ). The apartment is also equippedwith various facilities such as a cafeteria, mini market, restaurant, fitness room, a mosque and amultipurpose hall.To analyze the structure, ETABS Non Linear version 9.7.4 software are used to get internal forcesand will be used in manually design of reinforce concrete refer to Concrete SNI code 03-2847-2002 and Earthquake code SNI 03-1726-2002. To compare the result Sp Coloum v. 4.81. and RC.Beam Design V.1.0. are used. The calculation obtained 80 x 80 cm coloum with 24 D 25reinforcement, 35 x 60 cm primary beam and 15 x 30 cm secondary beam. The pile pondation areused for pondation with 9 pile pondation, 60 cm diameter and 18 m depth.Key words: Structure, ETABS, Pile Pondation

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