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INDONESIA
Rekayasa Sipil
Published by Universitas Brawijaya
ISSN : -     EISSN : -     DOI : -
Core Subject : Engineering,
Civil Engineering, Building, Construction & Architecture
Arjuna Subject : -
Articles 10 Documents
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Search results for , issue "Vol 7, No 3 (2013)" : 10 Documents clear
Analysis Of Motorcycle Effects To Saturation Flow Rate At Signalized Intersections In Malang City Lila Kurnia W.; Achmad Wicaksono; M. Ruslin Anwar
Rekayasa Sipil Vol 7, No 3 (2013)
Publisher : Department of Civil Engineering, Faculty of Engineering, University of Brawijaya

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Abstract

For some signalized intersections in Malang City, visually can be seen that motorcycle is the dominant transportation mode. The research aims to know the influence of motorcycle to the characteristic of saturation flow at signalized intersections in Malang City by using Time Slice Method. The main focus of the research is to look at characteristic on first 6 seconds when the greentime period. The method used is Linear Regression with 3 classical assumption test. This study found that there are 66,04% approaches that have base saturation flow rate per effective width (S0/m) value in excess of IHCM 1997 standard (600 pcu/m), while 33,96% approaches still meets the IHCM 1997 standard. The mathematic model for the number of motorcycle at first 6 seconds (X) to Start Value (Y) is Y=-0,132+0,008X. There are proposed direction of design criteria to saturation flow in Malang City. First, review the Start Value based on influence of the number of motorcycle at first 6 seconds (X 1 ), effective width (X 2 ), and greentime (X ). From analysis obtained the model Y=0,003+0,020X 1 -0,128X 2 -0,012X . Second, review the Start Value based on influence of the number of light vehicle at first 6 seconds (X) to Start Value (Y). From analysis obtained the model Y=0,407+0,013X. 
Investigation On Seismic Response Of 3D Symmetric Single Story of RC Frame With RC Infill Wall Mochamad Firmansyah Sofianto; Huei Tser Chen
Rekayasa Sipil Vol 7, No 3 (2013)
Publisher : Department of Civil Engineering, Faculty of Engineering, University of Brawijaya

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Abstract

Infill wall is commonly used on construction to enclosure the building and to divide the large area, however they are treated as non-structural on the structural design. In this study, the effect of variation width of infill wall on 3D symmetric single-story frame and the material using assumed as RC material was conducted to understand the contribution for reducing the internal force and for increasing the natural frequencies. From the investigation, the natural frequency and internal force of 3D symmetric model with variation width of RC infill wall increase and decrease respectively if compared with 3D pure frame model. From this investigation, it is better to have the walls on both sides of the column to have better reduction in the internal force, and the effect of floor diaphragm assumption explain that its effect only increase a little frequency and internal force, but the impact of model design is affected the rigid stiffness of beam-slab model. Thus, consideration of RC infill wall or the wall element on the structure model on the seismic response is recommended to become study investigation. 
The Effect Of Dolomite As Lightweight Agregate’s Substitute To The Concrete’s Compressive Strength Budio, Sugeng P.; Nurlina, Siti; Ristinah, Ristinah; Hidayat, M. Taufik; Nuralinah, Devi; Permana, Andrian
Rekayasa Sipil Vol 7, No 3 (2013)
Publisher : Department of Civil Engineering, Faculty of Engineering, University of Brawijaya

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Abstract

Indonesia is the country which has many natural resources that can be utilized in everyday life. One of the uses of natural resources is as a construction material. Human life cannot be separated from the construction field, because house is one of the basic human needs. Dolomite is a natural resource, which is generally used by many people as a mixture of cement, bricks, and soil fertilizer. However further research in the use of dolomite as a natural resource is needed, so that it is more useful and save. Dolomite can be used as a substitute for sand in concrete construction. Therefore, this research is conducted on the use of the dolomite material in the construction of concrete. Concrete specimens were made with a mixture proportion of dolomite as a replacement of sand. Then the compressive strength test is conducted. From these tests, it can be seen the influence of dolomite in the concrete mix and the percentage content of dolomite that can be used instead of sand. 
The Effect Of Pyrophyllite Use As Admixture In Light Concrete Bricks’s Mechanical Properties Retno Anggraini; Ristinah Ristinah; Sugeng P. Budio; Stevanus Rony Soewignyo; Winny Firmaninda
Rekayasa Sipil Vol 7, No 3 (2013)
Publisher : Department of Civil Engineering, Faculty of Engineering, University of Brawijaya

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Abstract

Pyrophyllite was extracted from Greek Language, in which pyt means fire and phyllon means leaf or sheet. Otherwise, phylit was found not long after phyllon word, in which the meaning was crack’s sheet. Pyrophyllite is combination of silica alumunium that has chemical formula Al2O3.4SiO2H2O. In this research, testing was conducted for mechanical properties of light concrete brick provided by additional material ”Pyrophyllite stone” as additive. The mechanical properties of light concrete brick consist of compressive strength, porosity, stress and strain curve, and elastic modulus. Testing resultsof the light concrete brick will be compared with that without mix of Pyrophyllite additive. 
Evaluation Of Reinforced Concrete’s Beam’s Capacity With Open Crack And Variation of Cover Thickness Using UPV And Hammer Test Saifoe El Unas; Sugeng P. Budio; M. Taufik Hidayat; Achfas Zacoeb; Ristinah Ristinah; Roland Martin S.; Christin Remayanti N.; Ahmad Rizqol Mahbub
Rekayasa Sipil Vol 7, No 3 (2013)
Publisher : Department of Civil Engineering, Faculty of Engineering, University of Brawijaya

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Abstract

Defect in building’s structure can be analyzed by non-destructive method or NDT, such as UPV Test and hammer test. Furthermore the UPV, hammer test, compressive strength test, flexural test and statistical analysis show the accuration of quality test result with the NDT method. The specimen used is brick-formed with the dimension of 15x20x140 cm and the variation of cover thickness. Average relative error of hammer test of cylinder test is about 2,83% - 7,32%. While UPV’s average relative error of cylinder sample is 4,74% - 55,05%. Based on statistical analysis, hammer test shows there is no significant difference, while UPV test shows that there is significant difference. Calculation of compressive strength before and after flexural loading obtains a number of relative error, in hammer test 5,58% - 10,53% and UPV test 7,35% - 13,05%. 
Desain Street Inlet Berdasarkan Geometri Jalan Raya Suharyanto, Agus
Rekayasa Sipil Vol 7, No 3 (2013)
Publisher : Department of Civil Engineering, Faculty of Engineering, University of Brawijaya

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Abstract

Pada saat musim hujan sering terjadi genangan di jalan raya. Salah satu penyebabnya ialah desain inlet saluran drainase jalan raya yang tidak sesuai dengan kondisi lapangan. Seharusnya jarak antar inlet, dimensi, dan jenis inlet yang digunakan disesuaikan dengan debit air hujan dan lebar jalan yang ada. Dalam penelitian ini telah dilakukan analisis jarak antar inlet, dimensi, dan jenis inlet yang sesuai dengan kondisi lebar jalan dan curah hujan yang ada. Penelitian dilakukan pada sebuah ruas jalan dengan panjang 3,8 km. Metode analisis debit limpasan permukaan digunakan metode rasional, analisis dimensi inlet digunakan kaidah hidrolika yang berlaku. Data input yang digunakan ialah data curah hujan, penggunaan lahan, lebar jalan, geometri jalan, dan jenis lapisan atas jalan. Hasil analisis menunjukkan bahwa jenis inlet yang digunakan ialah inlet curb opening inlet dan grate opening inlet. Untuk curb opening inlet dimensi yang dihasilkan ialah lebar 10 cm dan tinggi 8 cm dengan jarak 25 m. Pada grate opening inlet dihasilkan ukuran lubang 8 cm x 3 cm sebanyak 3 lubang dengan interval 25 cm. 
Kajian Perbaikan Kinerja Lalu Lintas Di Koridor Gerbang Perumahan Sawojajar Kota Malang Agustinus Vino Anjanto; Rio Rama Pradipta; Harnen Sulistio; Hendi Bowoputro
Rekayasa Sipil Vol 7, No 3 (2013)
Publisher : Department of Civil Engineering, Faculty of Engineering, University of Brawijaya

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Abstract

Permasalahan yang timbul di koridor gerbang perumahan sawojajar kota Malang dapat mempengaruhi kinerja lalu lintas, maka diperlukan upaya untuk melakukan kajian dan mencari solusi yang diperlukan agar dampak yang terjadi dapat diminimalisir. Kajian yang dilakukan berupa analisa kinerja simpang serta membuat rekomendasi perbaikan kinerja lalu lintas yang sesuai. Hasil yang diperoleh yaitu kondisi simpang bersinyal 5 kaki jalan Ranugrati-Sawojajar-Sawojajar Emas-Danau Toba-Simpang Ranugrati pada kondisi eksisting pada tahun 2013 dari hasil analisa perhitungan didapatkan bahwa rata-rata derajat kejenuhan (DS) sebesar 0.812 dengan rincian 0,92 pada pendekat utara; 0,28 pada pendekat utara 2; 0,21 pada pendekat selatan; 0,86 pada pendekat timur; dan 1,79 pada pendekat barat. Kondisi simpang tak bersinyal 4 kaki jalan Ranugrati-Danau Ranau Raya-Danau Toba-Dirgantara pada kondisi eksisting pada tahun 2013 dari hasil analisa perhitungan didapatkan bahwa derajat kejenuhan (DS) sebesar 1,50. Dari hasil analisa kondisi pada simpang bersinyal 5 kaki jalan Ranugrati-Sawojajar-Sawojajar Emas-Danau Toba-Simpang Ranugrati lima tahun mendatang didapatkan bahwa rata-rata derajat kejenuhan (DS) sebesar 2.50. Dari hasil analisa, kondisi simpang tak bersinyal 4 kaki jalan Ranugrati-Danau Ranau Raya-Danau Toba-Dirgantara lima tahun mendatang didapatkan bahwa derajat kejenuhannya sebesar 1,84. Perbaikan kinerja yang dapat direkomendasikan untuk simpang bersinyal 5 kaki jalan Ranugrati-Sawojajar-Sawojajar Emas-Danau TobaSimpang Ranugrati adalah perbaikan waktu hijau, membuat solusi satu arah pada jalan sawojajar dan sawojajar emas, dan pelebaran pendekat. Perbaikan kinerja yang direkomendasikan untuk simpang tak bersinyal 4 kaki jalan Ranugrati-Danau Ranau Raya-Danau Toba-Dirgantara adalah pembuatan kanalisasi. 
Studi Kelayakan Finansial Pada Proyek Pembangunan Mall Dinoyo Kota Malang Shinta Retno Putri; Saifoe El Unas; M. Hamzah Hasyim
Rekayasa Sipil Vol 7, No 3 (2013)
Publisher : Department of Civil Engineering, Faculty of Engineering, University of Brawijaya

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Abstract

Pembangunan proyek yang berskala besar memerlukan dana dan upaya lain yang besar pula, sehingga cukup berpengaruh terhadap kelangsungan hidup suatu perusahaan. Oleh karena itu, perlu penelitian dan pengkajian yang seksama dan sistematis sebelum terlanjur menanam modal. Untuk dapat memperjelas studi kelayakan finansial pembangunan pusat perbelanjaan , maka dilakukan analisa studi kelayakan pada pembangunan Mall Dinoyo yang terletak di kawasan Dinoyo kota Malang. Penelitian ini bertujuan untuk mengetahui kelayakan finansial pada proyek pembangunan mall Dinoyo. Studi kelayakan proyek adalah penelitian tentang dapat tidaknya suatu proyek (biasanya merupakan proyek investasi) dilaksanakan dengan baik dan berhasil. Kelayakan finansila juga di tinjau apabila terjadi penurunan manfaat dan kenaikan biaya. Penelitian ini menggunakan metode Net Present Value (NPV), Internal Rate Return (IRR), Benefit Cost Ratio (BCR), dan Payback Period (PP). Setelah data terkumpul langkah selanjutnya adalah menganalisis kelayakan proyek yang mana ditinjau dari aspek finansial dan dari segi sensitivitas. Dalam analisis ini membandingkan keuntungan yang diperoleh dari pendapatan operasional dengan biaya investasi. Biaya operasional dan pemeliharaan yang dikeluarkan untuk membangun Mall Dinoyo ini serta mengoperasikannya selama umur rencana kontrak. Hasil uji analisa kelayakan menggunakan metode Net Present Value pada kondisi normal didapatkan nilai Rp.4,553,587,399. Untuk metode Benefit Cost Ratio pada kondisi normal di dapatkan nilai 1.1430.Untuk metode Internal Rate Return di dapatkan nilai 18,68%. Dan untuk arus pengembalian pada metode Simple Payback Period didapatkan hasil 7 tahun 6 bulan 18 hari, sedangkan pada metode Discounted Payback Period didapatkan hasil 19 tahun 3 bulan 11 hari. Dari hasil analisa diatas dapat disimpulkan bahwa pembangunan mall Dinoyo layak untuk dilaksanakan. Hasil untuk kenaikan manfaat 10% dan kenaikan biaya 3% didapatkan nilai Rp. 1,622,692,004 hasil ini merupakan batas kenaikan biaya dan manfaat agar pembangunan mall Dinoyo dapat dilanjutkan. 
The Effect of Used Oil Mixing Variations And Curing Time To The Stability of Recycled Asphalt Mixture Bowoputro, Hendi; Djakfar, Ludfi; Muslim, Muhamad Iqbal; Rizaldi, Taqwa
Rekayasa Sipil Vol 7, No 3 (2013)
Publisher : Department of Civil Engineering, Faculty of Engineering, University of Brawijaya

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Abstract

The aim of this research is to determine the relationship pattern between the variation in levels of used oil and curing time to Marshall Stability of recycled asphalt mixture, and to determine levels of used oil and curing time were used to obtain the optimum stability of recycled asphalt mixture. Asphalt recycled used in this research is from asphalt pavement milling in front of the Head Office of Brawijaya University. Marshall test is used to test recycled asphalt mixture with a content rate of 4%,5%,6%,7% ,8% used oil and curing time 4 until 7 days. Test result indicated that the value of stability decreased with increasing levels of addition of used oil, but at 8% content of used oil, stability increased although it’s not significant. Stability value increases with increasing levels of curing time, but at the 5 th day of curing time, the stability is decreased although it’s not significant. The optimum levels of used oil is 4.0%. Optimum curing time is 7 days. 
The Effect Of Variation of Pyrophyllite Addition To Compressive Strength, Porosity, And Diagram of Stress Strain In Burnt Lightweight Concrete Brick Ristinah Ristinah; Retno Anggraini; Achfas Zacoeb; Prastumi Prastumi; Krisna Febrian Anugerahputra; I Dewa Nyoman Yoga Prawira
Rekayasa Sipil Vol 7, No 3 (2013)
Publisher : Department of Civil Engineering, Faculty of Engineering, University of Brawijaya

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Abstract

Lightweight brick is a material widely used in civil engineering as a substitute alternative material and brick walls of the building material. The aim of this study is to determine the behavior of burnt light brick, and behavior of piropilit additions in the mix proportion of the light brick. Specimens were tested by compressive strength, porosity, and modulus of elasticity. To test the compressive strength, plates were set at the top and bottom of the test specimen; a dial gauge was used to determine the deformation. To test the porosity, the specimen was cut into a size of 15 x 20 x 10 cm 3 and tested in accordance with porosity testing procedures. Data for the elastic modulus was obtained from stress and strain testing in conjunction with the compressive strength test. After the age of 28 days, specimens undergo combustion process before tested in the laboratory. Results of this study show that the addition of amount of piropilit as filler as much as 10-25% by weight of cement will increase the strength of brick light post-combustion at 800 o C temperature along with the increasing number of additional piropilit in it, however the addition of 5% would reduce the value of compressive strength. The addition of piropilit in the burnt lightweight brick will decrease the value of the strength. Porosity and modulus of elasticity values indicate that the addition of a filler piropilit as much as 515% by weight of cement on the burnt brick would increase the value of its porosity, however the addition of 20% and 25% would reduce the value of porosity. The modulus of elasticity values obtained from the stress and strain diagram, an increase of 5% -25% variation pyrophyllite additions. However there are some fluctuation trends on a variation of 5% -20% due to piropilit characteristics that do not fit to undergo the process of combustion or due to the setting position of the specimen in the furnace when the combustion process which allows the specimen exposed to direct flame or not. 

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