Jurnal Rekayasa
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Analisis Sensitifitas Distribusi Kala Ulang dari Metode Plotting Position.
No full textFrequency analysis method is the method of probability is often used in the field of civil enginee -ring. By using the method, events of the extreme values can be predicted. A standard techniquesthat often used in extreme value is plotting order-rangked data. Since a long time, researchers andpractitioners doing the study to get the best method of the plotting position.The purpose of this research is to analyze the sensitivity of the frequency distribution of return pe -riod (Tr) and Log (Tr) of the plotting position methods. The Data used in this research is in theform of annual maximum daily rainfall data. Sensitivity analysis done by comparing statistical pa -rameters of multiple frequency distribution of return period (Tr), Log (Tr) and rainfall data.From the results of this study indicated that, the correlation of the distribution frequency when re -setting the Log (Tr) with the data of the annual maximum daily rainfall gives a much better resultthan on the frequency distribution of correlation times reset Tr with annual maximum daily rain-fall. This means that the use of the frequency distribution of the return period Log (Tr) will givemore accurate extreme values
Studi Kuat Tekan Tanah Pasir Berlempung yang Distabilisasi Menggunakan Abu Gunung Merapi
Full text linkThe tested soil sample in this research is sandy clay soil. The variations of procentage are 5%,10%, 15%, and 20%. Each of samples are cured in 14 days. Based on the physical soil propertiesinvestigation, AASHTO classified the soil sample into A-2-6 group (sandy clay soil), while USCSclassified the soil sample as soil with rough granules into SC group.The results of the research in the laboratory showed that the additive material using Merapi vol -canic ash could improve the physical and mechanical properties of organic clay soil. In the physi-cal test such as unit weight and Atterberg limit tests, the values decreased after it, while the me-chanical test of Merapi ash sample showed it could improve the value of unconfined compressionstrength soil. Based on the result of unconfined compression stregth test, soil which is stabilizedusing the ash of Mount Merapi increase until the optimum ash content about 20%
Kinerja Jembatan Rangka Baja yang Diperkuat dengan GFRP (Glass Fiber-Reinforced Polymer)
Full text linkAnalysis of the data in this study is focused on a comparison of the results of direct testingdeflection field with SAP 2000 analysis and manual calculation of loading field and standard(RSNI T-02-2005) with a maximum deflection limit bridge.Based on the results obtained by calculation of loading field: percentage reduction of deflectiontest results without the GFRP reinforcement compared to after given the GFRP reinforcement ondirect testing field, SAP 2000 analysis, and manual calculation respectively, they are obtained4.934 %, 0.7097%, and -0,6804 %. Based on the results of the calculation deflection of theloading standard: percentage reduction of deflection test results without the GFRP reinforcementcompared to after given the GFRP reinforcement on SAP 2000 analysis and manual calculationrespectively, they are obtained 2,0212 % and -0.17557 %. The Values of deflection are calculatedstill below 18.75 cm as deflection limit L/240
Studi Daya Dukung Tanah Lempung Lunak yang Distabilisasi Menggunakan TX 300 Sebagai Lapisan Subgrade
Full text linkRoad construction requires good subgrade to put down parts of road pavement that it put downabove subgrade. However, soil can make problem if it has bad characteristic and loss, forexample high plasticity, low shear strenght, compression or volume change and large potensial ofswelling-shrinking. To overcome these, it is needed an improvement of soil that is called with soilstabilization use additive and one of them use TX 300 that come from America.Results of laboratory research show stabilization materials use TX 300 as stabilizing agent canimprove the physical and mechanical properties of soft clay soil. On physical test such as specificgravity and plasticity index, it decreased after stabilization. While the mechanical testing, usage ofTX 300 is effective enough in increasing the bearing capacity of soft clay soil. From the testresults of laboratory’s CBR, soil that has been stabilized with a mixture of the TX 300 can be usedas a subgrade for road construction due to CBR’s value ≥ 6 %
Studi Sifat Fisik Tanah Organik yang Distabilisasi Menggunakan Cornice Adhesive
Full text linkAnalysis of the data in this study is focused on a comparison of the results of direct testingdeflection field with SAP 2000 analysis and manual calculation of loading field and standard(RSNI T-02-2005) with a maximum deflection limit bridge.Based on the results obtained by calculation of loading field: percentage reduction of deflectiontest results without the GFRP reinforcement compared to after given the GFRP reinforcement ondirect testing field, SAP 2000 analysis, and manual calculation respectively, they are obtained4.934 %, 0.7097%, and -0,6804 %. Based on the results of the calculation deflection of theloading standard: percentage reduction of deflection test results without the GFRP reinforcementcompared to after given the GFRP reinforcement on SAP 2000 analysis and manual calculationrespectively, they are obtained 2,0212 % and -0.17557 %. The Values of deflection are calculatedstill below 18.75 cm as deflection limit L/240
Analisis Perbandingan Model Respon Spektra Desain SNI 03-1726-2002, RSNI 2010 dan Metode PSHA
Full text linkSeismic load rules for the building as outlined in the SNI 03-1726-2002 which divided Indonesianarea in the 6 (six) earthquake regions. It is different to that in RSNI 03-1726-xxxx, which dividedIndonesia area > 6 the seismic zone. In addition earthquake time period use 500 years, while theRSNI 03-1726-xxxx uses 475 years and 2475 years earthquake time period. In the arrangement ofPeak Ground Acceleration values (PGA) is also used different attenuation formula’s in bothstandard. That's why research needs to be done to it by taking locations is Kalibalok intersection(Bandar Lampung) and Way Robok (West Lampung) as objects. The study focused on the shape ofthe response spectra design, in consideration seismic load can be analyzed with dynamic analysismethods which one with the response spectra. For add to the model, it was also use the methodPSHA calculations PGA for both locations. Based on the SPT test data that has been carried outby PT. Plato Isoiki, it turns out the two locations including the classification in stiff soil profile.Refer to result of the response spectra shape’s in both locations is different. At the Kalibalokmaximum value of acceleration response spectra if the design is made according to the results ofPSHA calculations with one sigma models. Whereas for area Robok Way maximum accelerationvalue is obtained if the design response spectra are arranged according RSNI-03-1726-xxxx. Thisis because when the earthquake time period, the attenuation function and seismic zoning isdifferent
Daftar Isi Jurnal Rekayasa Edisi Desember 2013
No full textDaftar Isi Jurnal Rekayasa Edisi Desember 201
Daftar Isi Jurnal Rekayasa Edisi Desember 2012
No full textDaftar Isi Jurnal Rekayasa Edisi Desember 201
ANALISA TRANSPOR SEDIMEN DAN PENGARUHNYA TERHADAP PENGERUKAN KOLAM PELABUHAN BATUBARA DI KAWASAN SUKARAJA BANDAR LAMPUNG
No full textIn planning the construction and development of the Port, sedimentation or siltation problemsshould be minimized, especially in swimming harbor to secure and expedite the flow of shipping.Every time the sediment on the seabed will increase, in connection with the, to reduce siltationcaused by sedimentation is by dredging sediment pond Ports. Sediment defined as a collection ofparticle-organic and inorganic particles are irregularly shaped and accumulate extensively incoastal areas. based on Longshore Sediment Transport Table average rate of sediment obtained2176071.364 m3/yr/m. it means, within a period of 1 year, the extent of sediment by 2176071.364m2. And the time when the maximum height allowable sediment was 10.69 years. It means every10.69 years to do the dredging of the sediment on the sea floor, particularly in the harbor pool
KARAKTERISTIK OPERASIONAL BRT (BUS RAPID TRANSIT) DI JALAN TEUKU UMAR BANDAR LAMPUNG SETELAH ADANYA PELEBARAN JALAN
Full text linkTrans bus bandar lampung as urban mass transit plays an important role for the government ofbandar lampung in addressing the problem of traffic congestion and heavy traffic at the rushhour. Trans bus existence bandar lampung also very helpful community of bandar lampung espe-cially for students, college students, employees and the general public in carrying out activities ofdaily activities by providing transportation that can provide a sense of security, comfortable, eco -nomical as well as save time. Trans bus operations simulation lampung on jalan teuku umar per-formed with some of the first scenario is the implementation of special BRT corridor and the sec-ond with the imposition of special BRT corridor by eliminating microbus / public transportation.Furthermore also seen the advantages and disadvantages of implementing BRT in full or partially.From the analysis of the two scenarios above simulation, we got the result that the applicationscenarios specifically BRT corridor by eliminating microbus / public transportation increases thelevel of service to the tanjung karang - rajabasa from D to C and to route rajabasa - tanjungkarang from E to D. Further analysis of the study is needed to determine the effectiveness of thisscenario if applied in these other BRT routes in order to attract both local and non-local investorsto invest in this mass transportation