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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 545 Documents
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Korelasi antara Kuat Tekan Bebas dengan Kuat Tekan Geser langsung pada Tanah Lanau Disubstitusi dengan Pasir Sudarman, Aulia R; Afriani, Lusmeilia; Iswan, Iswan
Jurnal Rekayasa Sipil dan Desain (JRSDD) Vol. 4 No. 2 (2016): Edisi Juni 2016
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v4i2.384

Abstract

This study aims to get the correlation between the soil compressive strength and soil shearstrength directly on silt substituted with granulated materials. This is done because if buildingstructures on the silt soil will cause several problems including a small value of the compressivestrength and low shear strength after incurring. For the testing is done with a mixture of sand, siltsoil so that it can be seen how much sand mixture to resist the forces on the load that is above theground.To determine the sand effect on silt soil , with the compressive strength and shear strength that hasbeen made by way of mixing the sand by 10%, 20%, 30% and 40%. From the test results showedan increase in the compressive strength of 0.3723 kg/cm 2 in a mixture of 10% sand and a decreasein the mixture thereafter. In the direct shear strength value increased 30% when variations mixtureof sand that is equal to 0.4290 kg / cm 2 , the cohesion of 0.27 kg / cm 2 and the friction angle in at26.170.Keywords: silt soil, sand, soil compressive strength, soil direct shear
Studi Pemodelan Stokastik Curah Hujan Harian di Stasiun Kota Metro Arizona, Bramesvara; Zakaria, Ahmad; Purwadi, Ofik Toupik
Jurnal Rekayasa Sipil dan Desain (JRSDD) Vol. 3 No. 1 (2015): Edisi Maret 2015
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v3i1.385

Abstract

The purpose of this research is to study the daily rainfall data series The data used daily rainfall data with data length in 1986-2013 at 3 stations namely Metro station R-206, R-107 Raman Dam, and Argoguruh R-106 are located in Metro City and the surrounding areas.The modeling is done using the data length of 512 days. By using the frequency of rainfall data obtained then apply the Fourier equation and the method of least squares is then generated model of periodic daily rainfall. Rainfall stochastic model of rainfall data is assumed as the difference between precipitation data with periodic rainfall models using the 253 components. Based on data from a series of stochastic, stochastic component is computed using autoregressive models approach. Stochastic model presented by using the autoregressive model of order three. Validation stochastic series, between the data and the model is done by calculating the correlation coefficient.Based on these results we can conclude synthetic daily rainfall data time series obtained very significant approach measurable rainfall. With the value of the average correlation coefficient stochastic model is 0.9981.keywords: daily rainfall, autoregresif models, stochastic component.
Studi Pemodelan Curah hujan sintetik dari beberapa stasiun di wilayah Pringsewu Perdana, Damar Adi; Zakaria, Ahmad; Sumiharni, Sumiharni
Jurnal Rekayasa Sipil dan Desain (JRSDD) Vol. 3 No. 1 (2015): Edisi Maret 2015
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v3i1.386

Abstract

This research conducted to study the characteristics of daily rainfall and model making ofsynthetic daily rainfall in Pringsewu regency using periodic model, stochastic model and periodicstochastic models. This research conducted using daily rainfall data with length of 1984-2013from three rainfall stations, Pringsewu, Wonokriyo and Banyuwangi rainfall stations.These models performed by using 512 days annual data. Using rainfall frequency obtained andapplying the spectral method and the least squares method, it can be generated the daily rainfallperiodic models. Rainfall stochastic model assumed as the difference between rainfall data withperiodic rainfall models. Based on data from the series of stochastic, the component wascalculated using the approach of autoregressive models. Stochastic model was presented by usingthe autoregressive model of order three. Periodic stochastic model obtained by merging periodicmodel and stochastic model. Model validation and data obtained by calculating the correlationcoefficient. Based on the results of this research, it can be concluded that daily rainfall time seriescan be very significantly approximately recorded rainfall data. With the the average value ofcoefficient correlation of periodic model is 0.98019, coefficient correlation of stochastic model is0.99808, and coefficient correlation stochastic of periodic model is 0.99993keywords: daily rainfall, autoregresif models, stochastic component.
Kajian Pengelolaan Sumber Daya Air Permukaan Berbasis Geographics Information System (GIS) di Kota Bandar Lampung Iskhaq, Firdaus bin; Purwadi, Ofik Taufik; Perangin angin, Geleng
Jurnal Rekayasa Sipil dan Desain (JRSDD) Vol. 4 No. 3 (2016): Edisi September 2016
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v4i3.393

Abstract

Bad water resource management caused water availability unable to be fulfiled to the maximum level throughout the year, especially in the dry season. The water crisis becomes a difficult problem because  the tendency of people’s anticipation only glued to the conventional water sources which are susceptible to dry out, such as wells and others. This study aimed to determine the condition of surface runoff resources in the Bandar Lampung city. And also to provide a solution of problems that often occur in the Bandar Lampung city, especially in the dry season. This research conducted using MWGIS software as a program for making geographical information of Bandar Lampung city conditions in general and  rivers condition specifically. In this digital era, information of rivers based on digital data are required for society and the government as an instrument to establish decisions and policies in the management of surface runoff resources, especially in case of rivers in Bandar Lampung city. The output from MWGIS is an illustration of a geographical condition of Bandar Lampung city which in simple form map contains a variety of information that related to the geographical conditions, such as land cover data, topography, slopes, rivers, districts, villages and many others depend on how far the manufacturing database / information in MWGIS required.
Model Emisi Gas Buangan Kendaraan Bermotor Akibat Aktivitas Transportasi (Studi Kasus: Terminal Pasar Bawah Ramayana Koita Bandar Muziansyah, Devianti; Sulistyorini, Rahayu; Sebayang, Syukur
Jurnal Rekayasa Sipil dan Desain (JRSDD) Vol. 3 No. 1 (2015): Edisi Maret 2015
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v3i1.394

Abstract

Ramayana Underground Terminal of Bandar Lampung City is one of the largest contributorsexhaust emission levels, where the freight car transport activity is very high. Transportation is oneof the activities that contribute as a producer of motor vehicle exhaust emissions both gasolineand diesel.The aim of this study is to make model the relationship between vehicle exhaust emissions withtransport activity, to determine the factors that affect emissions, calculate emissions, and calculatethe emission losses in rupiah per year in Ramayana Underground Terminal of Bandar LampungCity.Relationship models obtained from the linear regression equation using SPSS 16 for dieselpassenger cars is Y = -19,401 + 0,684 X1 + 11,497 X2 +0,031 X3 and for gasoline passengercars is Y = 20,060 + 0,143 X1 + 0,421 X2 + 0,028 X3 and for motorcycles is Y = 9,049 + 0,082X1 + 0,921 X2 + 0,051 X3. Where the exhaust emissions value (Y), the age of the vehicle (X1),vehicle maintenance (X2) and the capacity of the machine (X3). Based on a survey and analysis ofthe emission load calculations and the cost of damages for Ramayana Underground Terminalworth Rp 63.492.632 / year.Keywords: Transportation, gasoline, diesel, exhaust emissions, SPSS 16
Studi Optimalisasi Perparkiran dan Pedestrian di Fakultas Teknik Jurusan Sipil Universitas Lampung Nawawi, Sherly Novita Sari; Sulistyorini, Rahayu; Martono, Yohanes
Jurnal Rekayasa Sipil dan Desain (JRSDD) Vol. 3 No. 1 (2015): Edisi Maret 2015
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v3i1.395

Abstract

Faculty of Civil Engineering Department as one of the majors at the University of Lampung whichhas the number of students, faculty and others are quite large, this has resulted in demand forparking at the Faculty of Engineering Department of Civil is a problem that can not be ignoredbecause of the Faculty of Civil Engineering Department as a center of community activityacademic need a good arrangement and the campus community college population continues toincrease each academic year. This study aims to investigate the characteristics of the motorvehicle users both motorcycles and cars in the Faculty of Engineering Department of Civil,knowing parking needs in the Faculty of Engineering Department of Civil, find out if parking andpedestrian facilities in the Faculty of Engineering Department of Civil been sufficient,, analyzeparking management solution and pedestrian in the Faculty of Civil Engineering Department.Characteristics of motor vehicle users both motorcycles and cars derived from a comparisonbetween the accumulation of the highest parking vehicles with the number of parking spacesavailable, vehicle car I is 14 pieces of land, land second car that is 20 pieces, motorcycle land I is20 pieces, motorcycles land II is 27 pieces, motorcycles III, 11 pieces of land and land motorcycleIV is 4 pieces. Based on a survey and analysis parking requirements for the Faculty ofEngineering Department of Civil to cars I and II land at 192% / day, for the motorcycle land I of11.2% / day, for the motorcycle land II, III and IV of 126% / day .Keywords: Transportation, Parking, Pedestrian
Studi Perbandingan Uji Pemadatan Standar dan Uji Pemadatan Modified Terhadap Nilai Koefisien Permeabilitas Tanah Lempung Berpasir Sembiring, Natanael; Iswan, Iswan; Jafri, Muhammad
Jurnal Rekayasa Sipil dan Desain (JRSDD) Vol. 4 No. 3 (2016): Edisi September 2016
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v4i3.401

Abstract

AbstractConstruction of a construct in civil engineering requires that the material in top shape.The soil that became the foundation of a structure should reach the prime condition to be able to sustain the existing structure on it. But in fact it is not easily met at a project site . This research will compare the compacted soil permeability values are standard with compacted soil permeability values are modified. Soil of the sample in this study were taken from the  sukajawa village , Lampung Tengah. The soil was taken from two locations with different types. The soil is then mixed with sand which then compacted using standard methods and methods modified. Permeability testing is done to obtain permeability coefficient. Based on the original soil physical test , AASHTO soil 1 put into groups of A - 7-5 and the second soil  into a group of A- 7-6, which means the land is clay soil types and USCS classify the soil into fine-grained soil. The observations in the laboratory showed that compaction with different methods show different results and the amount of a mixture of sand affects the value of soil density.Keywords : Soil clay , sand , compaction and permeability.  
Pengaruh Penambahan Fiber Baja Seling dengan Volume Fraction 0,4%, 0,6% dan 0,8% terhadap Kuat Tekan dan Kuat Tarik Lentur pada Beton Mutu Normal. Marvin, Tiffany; Purwanto, Eddy; Irianti, Laksmi
Jurnal Rekayasa Sipil dan Desain (JRSDD) Vol. 4 No. 3 (2016): Edisi September 2016
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v4i3.402

Abstract

This research was conducted to study and determine the influence of steel sling fiber 0,4%, 0,6% and 0,8% volume fraction of compressive strength and flexural strength on normal quality concrete. This study used an experimental method in the Laboratory of Material and Construction Engineering Faculty, University of Lampung. The compressive strength test specimen is a 30 cm height and 15 cm diameter cylinder and the flexural strength test specimen is a 40 cm length, 10 cm width and 10 cm height beam. The compressive strength and flexural strength test of  normal quality concrete with 0,4%, 0,6% and 0,8% volume fraction held after 14 and 28 days. The maximum compressive strength and flexural strength value are at 0,6% volume fraction and decrease at 0,8% volume fraction. The maximum compressive strength is 27,5537 MPa at 0,6% volume fraction and the optimum value  from polynomial trendline chart is 27,6028 MPa at 0,5754% volume fraction. The maximum flexural strength is 5,6899 MPa at 0,6% volume fraction and the optimum value from polynomial trendline chart is 5,7163 MPa at 0,5687% volume fraction. The steel sling fiber didn’t affect a high increase of the compressive strength, but this steel sling fiber had a high flexural strength which is 1733,46 MPa, so it affected a significant increase of the flexural strength test.Keywords : compressive strength, flexural strength, fiber concrete, steel sling fiber
Study System Drainase di Fakultas Teknik Universitas Lampung Ardian, Riko Berli; Zakaria, Ahmad; Susilo, Gatot Eko
Jurnal Rekayasa Sipil dan Desain (JRSDD) Vol. 4 No. 3 (2016): Edisi September 2016
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v4i3.403

Abstract

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.
Analisa Kesalahan Pemodelan Data Pasang Surut Stasiun Tanjung Priok Prasetyo, Agus Ari; Zakaria, Ahmad; Welly, Margareta
Jurnal Rekayasa Sipil dan Desain (JRSDD) Vol. 4 No. 3 (2016): Edisi September 2016
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jrsdd.v4i3.415

Abstract

This research was conducted to study the characteristics of tides and tidal make synthetic model.The data used tide data hourly to the length of the data in 1985-1987 at the station Tanjung Priok,Jakarta province, Indonesia.The modeling is performed using a data length of 15 daily or for any length of data to 360 hoursand data 30 daily or for any length of data 720. Using data from tide observations obtained andapply Anfor equations and method least squares can be generated model of periodic tidal hourly.Model periodic tidal of tidal observation data is assumed as the model data obtained by using 9tidal harmonic components. From the modeling results and the measured data can be seen thecorrelation coefficient and the value of modeling errors.Based on these results we can conclude tidal hourly synthetic time series obtained significantlyapproaching tidal measurable. The correlation coefficient was very good, the value of the averagecorrelation coefficient models 30 daily periodic observation is 0.9377 and the average ofcorrelation coefficient models 15 daily periodic observation is 0.9571. From this research can beseen the value of a good tide data and allow for cost saving tide observations with 15 days ofobservation.keywords: daily tidal, the value of modeling errors, correlation coefficient

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