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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 6 Documents
 1 
Search results for , issue "Vol 4, No 2 (2010)" : 6 Documents clear
Studi Evaluasi Usia Fatik Sisa dan Lendutan pada Jembatan Soekarno-Hatta di Kota Malang Sugeng Prayitno Budio; Agoes Suharjono M. D.; Adi Wijaya
Rekayasa Sipil Vol 4, No 2 (2010)
Publisher : Department of Civil Engineering, Faculty of Engineering, University of Brawijaya

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Abstract

Bridge is a kind of structure that accept cyclic load because of the traffic load. The cyclic load that continuous day by day could be the cause of collapse. It could happen even all of the strength parameter on the bridge material and structure not over the safety yield stress. This phenomenon called fatigue. The purpose of this study is evaluating of the remaining fatigue life conducted to anticipate damage. While, the deflection of the bridge could be use to measure the serviceability of the bridge. The remaining fatigue life analysis conducted by observe stress range of the bridge that happen while traffic pass the bridge. This stress data then combined with traffic’s volume to get the remaining fatigue life. While, deflection could be found by experiment in the bridge. From the calculation and experiment, known that the reaming fatigue life is different for each span. It could happen because the difference of material, dimension, and truss system in each bridge produce different stress for the same loading case. After calculation we got the result that fatigue life for 40 meter span will end after 36,739 years, and for the 60 meters span the fatigue life already end 12,596 years since it built. And the deflection for 40 meter span is 4 mm and 14 mm for 60 meter span. Both still far from the initiate deflection which is 40 mm and 60 mm. Therefore we can make a conclusion that the bridge still good condition of serviceability. 
Pengujian Geser Panel Komposit Lapis Anyaman Bambu Menggunakan Limbah Beton Sebagai Bahan Agregat dengan Variasi Jarak Shear Connector dan Agregat Campuran Mohammad Taufik Hidayat
Rekayasa Sipil Vol 4, No 2 (2010)
Publisher : Department of Civil Engineering, Faculty of Engineering, University of Brawijaya

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Abstract

Panel lapis gedek merupakan komposit dengan jenis bahan yang berbeda yaitu lapis gedek danlapis beton tanpa pasir. Panel lapis gedek terdiri dari tiga lapis gedek, ditengah-tengahnya diisi beton tanpapasir. Dari penggunaan panel lapis gedek ini akan diperoleh keuntungan yaitu : ringan, murah, tahan gempa,tahan angin dan tahan api. Untuk menggabungkan antara lapis gedek dan beton tanpa pasir diperlukanadanya penghubung yaitu shear connector. Dalam panel lapis gedek ini agregat kasar diperoleh dari limbahbeton yang dihancurkan. Adapun rumusan masalah dari penelitian ini adalah bagaimanakah pengaruh limbahbeton dengan variasi jarak shear connector dan agregat campuran terhadap kuat geser panel lapis gedek padasaat retak pertama. Luaran yang diharapkan dengan digantikannya pasir dan kerikil dengan limbah beton,bisa mengurangi berat sendiri panel dengan kekuatan sama atau lebih bila dibandingkan dengan panel dengankomponen spesi yang terdiri dari semen, pasir, air. Selanjutnya juga akan dihitung kuat geser panel lapisgedek dengan variasi jarak shear connector 10 cm dan 15 cm dan agregat kasar dengan perbandingancampuran yaitu 1 : 3 dan 1 : 4. Benda uji yang digunakan adalah panel lapis gedek dengan ukuran (80x50)cm dan ketebalan 3 cm, yang diberi beban terpusat pada bentang tengah. Asumsi tumpuan adalah sendi-rol.Dalam analisis ini diasumsikan panel sebagai balok tinggi. Pada balok tinggi tegangan geser maksimumterjadi pada kondisi 0,4h dari serat bawah.Hasil pengujian menunjukkan bahwa pada pengujian pelat lapis anyaman bambu (gedek) denganvariasi jarak shear connector dan agregat campuran menunjukkan adanya pengaruh jarak shear connectorterhadap kekuatan geser tetapi bernilai negatif, karena makin kecil jarak shear connector ternyata makin kecilbeban yang ditahan. Jarak shear connector juga berpengaruh terhadap kerapatan agregat pada panel. Hal inidibuktikan dengan analisa statistik dan memberikan kesimpulan bahwa variasi agregat tidak berpengaruhterhadap kekuatan geser pelat lapis gedek. 
Penggunaan Geotextil sebagai Alternatif Perbaikan Tanah Terhadap Penurunan Pondasi Dangkal Yulvi Zaika; Budi Agus Kombino
Rekayasa Sipil Vol 4, No 2 (2010)
Publisher : Department of Civil Engineering, Faculty of Engineering, University of Brawijaya

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Abstract

Proses penurunan pondasi diakibatkan oleh terkompresinya lapisan tanah di bawah pondasi akibatbeban struktur. Pada penelitian ini dilakukan perhitungan pengaruh pemasangan perkuatan pada penurunanpondasi dangkal pada tanah lunak di kawasan Aie Pacah Padang. Analisa perkuatan dilakukan pada tanahlempung lunak dan tanah timbunan pasir yang diberi perkuatan 1,2,3 dan 4 lapis. Dari hasil yang didapatkan,tanah lempung lunak yang dibebani dengan pondasi mengalami penurunan yang lebih besar dari penurunanizin Pemasangan 2 lapis perkuatan memberikan hasil optimum pada tanah lempung yaitu denganpengurangan penurunan sebesar 97.26 %. 
Pengaruh Pemasangan Bangunan Peninggi Muka Air (Subweir) Terhadap Gerusan yang Terjadi di Hilir Bendung Pudyono, Pudyono
Rekayasa Sipil Vol 4, No 2 (2010)
Publisher : Department of Civil Engineering, Faculty of Engineering, University of Brawijaya

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Abstract

This research used the dam model from the prototype of the Bakalan Dam in the Kecamatan WagirKabupaten Malang with the 1 : 30 scale as the case of the study. In this model research, in the damdownstream was formed as the moveable bed with the mixing of sand (50%) and the gravel (50% sieve 10mm), with the three discharge variation Q = 6 liter/sec, 9 liter/sec and 12 liter/sec.The aim of this research is finding out the minimum scouring depth occurrence in the downstreamof the dam with the subweir installment. The height variation of the sub weir was Zo = 0; Z1 = 1,66cm; Z2 = 3,33 cm; and Z3 = 5 cm, and the variation of length sub weir installment range in the downstreamof the dam was L1 = 60 cm; L2 = 75 cm; L3 = 90 cm.The result of this research was shown that the minimum downstream dam scouring was occurredfor discharge variation range Q1 = 6 litter/sec until Q2 = 9 litter/sec with the variation of the length subweir installment was 60 cm until 75 cm from the toe of the dam that used the 5 cm of the sub weir height.While for the discharge in the range of Q2 = 9 litter/sec to Q3 = 12 litter/sec with the all of the length ofinstallment and the height of sub weir variation have not gave the significance influence for the depth ofscouring. Its shown that that trend of the scouring depth was followed the trend of the discharge without thesub weir installment (Zo). It is mean hat for the high discharge, installation of the sub weir was having notinfluence to decrease the scouring depth of the downstream dam. 
Aplikasi SIG (Sistem Informasi Geografis) untuk Evaluasi Sistem Jaringan Drainase di Sub DAS Lowokwaru Kota Malang Azizah Rachmawati
Rekayasa Sipil Vol 4, No 2 (2010)
Publisher : Department of Civil Engineering, Faculty of Engineering, University of Brawijaya

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Abstract

Sub Basin Lowokwaru has 5.40 km2 with 6.39 km of main river length. It remains part of BasinBango in Malang City. Drainage system in Sub Basin Lowokwaru takes benefit from carrier channelsourcing from Bendung Sengkaling and constitutes a secondary irrigation channel. Flood or inundationcases at Sub Basin Lowokwaru remain due to incapability of drainage system capacity to accommodaterainwater overflow. This evaluation of drainage system in this area requires rainfall data collected fromRain Fall Station of Lowokwaru, Dau and Pendem. Meanwhile, primary data involve direct rainmeasurement at research site by using alat ukur hujan biasa (AUHB). The gauge has been used to measurewater surface elevation in outlet. Channel geometric data seem observed from map and direct measurementat research site. Research method used considered flood debit analysis grouped into two parts, Rational Method and Observation Way. The application of Geographic Information System (GIS) may be useful toacknowledge topographic condition, overflow coefficient, land use order, macro drainage system, and toanalyze planned flood debit in this area.Results of analysis drainage capacity at Sub Basin Lowokwaru, not available at all drainagechannel that able to receive 5 years shuttle period flood debit, there are 14 channels from 40 to that cannotovercome that. Therefore, it need channel dimension change. Observation debit received from observationpoint at SLWK. A channel is 1.5611 m3/s, and calculation result by Rational Method, it is 1.338 m3/s. Forrain level data (R24) at Sub Basin Lowokwaru is 94,590 mm (2 years), 123.1076 mm (5 years), 137.2918 mm(10 years). 
Karakteristik dan Peluang Kecelakaan pada Mobil Pribadi di Wilayah Perkotaan Lasmini Ambarwati; Harnen Sulistio; Gama Hendika Negara; Zanuar Hariadi
Rekayasa Sipil Vol 4, No 2 (2010)
Publisher : Department of Civil Engineering, Faculty of Engineering, University of Brawijaya

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Abstract

Growth of the number of private car in Indonesia is followed by increasing car accident. Because of thatreason, it is important to know the driver’s factors which have an effect on probability of accident in theurban area. Analysis method is logistic regression, binomial logic model with data obtained from distributionof questionnaire. From the analysis, the factors which have influence to the probability of accident in theMalang city are gender and trip purpose. Otherwise, for Batu city, gender, riding attitude, income, and traveldistance influence the probability of car accident. From driver characteristics which most drivers haveeducation background with graduated from senior high school and age below than 23 years, the probabilityof accident is 0.787. 

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