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INDONESIA
Rekayasa Sipil
Published by Universitas Brawijaya
ISSN : -     EISSN : -     DOI : -
Core Subject : Engineering,
Civil Engineering, Building, Construction & Architecture
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Articles 10 Documents
 1 
Search results for , issue "Vol 13, No 3 (2019)" : 10 Documents clear
MITIGASI BENCANA MENGGUNAKAN PETA FAKTOR KEAMANAN LIKUIFAKSI BERDASARKAN CONE PENETRATION TEST (STUDI KASUS ITERA) Ahmad Yudi; Sayed Ahmad Fauzan; Nugraha Bintang Wirawan
Rekayasa Sipil Vol 13, No 3 (2019)
Publisher : Department of Civil Engineering, Faculty of Engineering, University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.rekayasasipil.2019.013.03.3

Abstract

Institute Technology of Sumatera (ITERA) located on Sumatera Island, take place on Lampung Selatan (South Lampung. As the coastal region, Lampung Selatan dominated by the sandy soil which allows the possibility of the Liquifaction. The objectives of this research is to mitigate the Liquifaction with analyze using Liquifaction of the safety factor map under the deterministic method. In order to establish the development of Institute Technology of Sumatera (ITERA, this research expected can be used as the consideration to mitigate the damage in relation with the site condition. Deterministic method is the ratio comparison of the Cyclic Resistant Ratio (CRR) and the Cyclic Stress Ratio (CSR) effected by the earthquakes. Cyclic Stress Ratio (CSR) depends on the depth of the soil layer, total vertical pressure, effective vertical pressure, earthquake’s magnitude and the peak ground acceleration. Meanwhile, the Cyclic Resistance Ratio (CRR) calculated by the correlation of the empirical result of CPT. The safety factor value analyzed by the comparison value of CSR and CRR that pointed on 12 CPT location. In result, take the test location on ITERA, it is known that the safety factor in this site is on the safe zone and have been described on the color zone on the map as the disaster mitigation.
ANALISIS PERILAKU EFEK RETROFIT KOLOM BETON BERKOMPOSISI STEEL FIBER (ENGINEERED CEMENTITIOUS COMPOSITE / ECC) AKIBAT BEBAN AKSIAL DENGAN MENGGUNAKAN SOFTWARE BERBASIS FINITE ELEMENT ANALYSIS Bagas Rahmandita Subchan; Gati Annisa Hayu; Entin Hidayah
Rekayasa Sipil Vol 13, No 3 (2019)
Publisher : Department of Civil Engineering, Faculty of Engineering, University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.rekayasasipil.2019.013.03.8

Abstract

This study presents a simulation analysis of the non-linear behavior of retrofit concrete material due to uniaxial loads modeled in the form of cylinders measuring 150 mm in diameter and 200 mm in depth using the ABAQUS. Analysis of this auxiliary program includes cases of normal concrete retrofit, concrete with retrofit concrete with a composition of 1% steel fiber, and concrete with retrofit concrete composed of 2% steel fiber. From the results of the study conducted, it was shown that in modeling the properties of concrete damaged plasticity in ABAQUS, the use of accurate compressive behavior equations for concrete cases with normal concrete retrofit was core concrete and retrofit concrete using the Alfarah, et al equation. For the case of concrete with steel fiber composition retrofit, core concrete uses the Alfarah equation, and retrofit concrete uses Zhou Jiajia, et al. Whereas to model the tensile behavior accurately in the case of concrete with normal concrete retrofit using the Alfarah, et al equation. And the case of concrete with retrofit steel fiber compositions using the CEB-FIB equation and the Ali & Nehdi equation. The results of ABAQUS analysis of force vs. displacement show a graphical pattern close to the similarity of retrofit concrete column experimental results ECC1 error force ratio and displacement 14.86% and -10.60%, and ECC2 14.82% and 8.01). Based on the stress analysis shows that there is a gradual increase in core concrete where the peak of stress is found in the core area of the concrete core and in the retrofit area is divided into two regions, namely stressing on the center and pulling on a small part of upper and lower column retrofit.
ANALISIS PERILAKU STRUKTUR BETON DAN BAJA DENGAN METODE LEVELLING TIME HISTORY (STUDI KASUS GEDUNG E ITERA, LAMPUNG, INDONESIA) Ahmad Yudi; Bayzoni M.T.; Nugraha Bintang Wirawan; Rijuli Nadaek
Rekayasa Sipil Vol 13, No 3 (2019)
Publisher : Department of Civil Engineering, Faculty of Engineering, University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.rekayasasipil.2019.013.03.4

Abstract

The selection of structural material types can be based on analyzing the behavioral of the structure by giving a nonlinear dynamic earthquake load of time history. Because in Indonesia doesn’t have any data of time history record, it is necessary to match the time history data with the design spectrum response. Gedung E ITERA is modeled on reinforced concrete structures and steel structures with open frame models for the same as built drawing. Then can be evaluated the structural behavior that is like mass participation, plastic design, displacement, rotation, and base shear with time history load that will be levelling (levelling time history). With levelling the time history load , it can be found the first structural part that collapses and the maximum load that can be retained by the structure for one of the mitigation effort. The analysis uses a nonlinear dynamic time history analysis with the most dominant combination is earthquake combination. The results of this study show the differences in structural performance, the location of structural failure, and the maximum load that can be retained by the reinforced concrete structure and steel structure of gedung E Itera.
PENGARUH VARIASI UMUR BETON TERHADAP CEPAT RAMBAT GELOMBANG DENGAN MENGGUNAKAN METODE NON DESTRUCTIVE TEST Alif Iqbal Nur Hidayat; Indra Waluyohadi; Sugeng Prayitno Budio
Rekayasa Sipil Vol 13, No 3 (2019)
Publisher : Department of Civil Engineering, Faculty of Engineering, University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.rekayasasipil.2019.013.03.9

Abstract

 Field testing is divided into 2 tests i.e. by destroying test structures or destructive tests and without destroying the structure or called a non-destructive test (NDT) One of them using the ultrasonic pulse rate (UPV). The study used the PUNDIT PL-200 tool to perform a concrete density analysis process based on the parameters generated from the UPV tool. The parameters taken on this test are rapid ultrasonic wave velocity. The study used a cylinder test object with a diameter of 15 cm and a height of 30 cm. test objects are differentiated into 4 age of concrete 7 days, 14 days, 21 days, and 28 days. The results that get in the study's quick value of wave vines are constantly increasing according to the age
STUDI EVALUASI PENGARUH VARIASI MUTU BETON TERHADAP KEKUATAN STRUKTUR BETON NORMAL MENGGUNAKAN METODE NON-DESTRUCTIVE TEST DAN DESTRUCTIVE TEST Bagas Bhanu Aribawa; Indradi Wijatmiko; Roland Martin Simatupang
Rekayasa Sipil Vol 13, No 3 (2019)
Publisher : Department of Civil Engineering, Faculty of Engineering, University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.rekayasasipil.2019.013.03.5

Abstract

To make the examination of the strength of existing building structures easier, can be done by using the Non-Destructive Test (NDT) methods, but the results obtained are not as accurate as using the Destructive Test (DT) method. It is therefore a study related to the combination of NDT and DT methods to obtain better accuracy of the results. The research uses PUNDIT PL-200, Silver Schmidt Hammer, Compression Testing Machine with 3 concrete quality types of 12,5 MPa, 18,75 MPa, and 25 MPa. Overall results, UPV and the actual compressive strength have a close and mutually affecting relationship between the variables evidenced by the R2 value of 0,7458. In addition, with the presence of combinations of several variables testing methods of DT and NDT, it can produce a level of accuracy from a compressive strength estimate value.  
PENGARUH VARIASI MUTU BETON PADA BENDA UJI BALOK BETON NORMAL DENGAN MENGGUNAKAN METODE NON DESTRUCTIVE TEST Kushariyanto Kushariyanto; Christin Remayanti Nainggolan; Siti Nurlina
Rekayasa Sipil Vol 13, No 3 (2019)
Publisher : Department of Civil Engineering, Faculty of Engineering, University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.rekayasasipil.2019.013.03.10

Abstract

This research aims to know the relationship of the pulse velocity to compression strength with a variation of the quality of the concrete based on the ultrasonic pulse velocity. This research uses the PUNDIT PL-200 to do the process of analysis of concrete density based on the pulse velocity from the UPV. From UPV testing in this research showed that each quality and each method has a strong connection of the same compression strength and velocity. This is indicated by rising the velocity graph as the quality of the concrete itself increases. From this research also gained comparisons between the three methods, which is between direct and semi-direct methods, direct and indirect methods, as well as semi-direct and indirect methods.
SEMARANG INTEGRATED BOAT RAPID TRANSIT : KAJIAN PENERAPAN TRANSPORTASI SUNGAI DI KOTA SEMARANG Moh Nur Sholeh; Robert Fanny Al Firdaus; Dimas Sukma Adiputra; Sayekti Laras Hidayati
Rekayasa Sipil Vol 13, No 3 (2019)
Publisher : Department of Civil Engineering, Faculty of Engineering, University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.rekayasasipil.2019.013.03.1

Abstract

Kota Semarang menjadi kota dengan jumlah penduduk yang terus meningkat. Saat ini Kota Semarang mempunyai banyak permasalahan, beberapa diantaranya adalah buruknya transportasi umum dan kemacetan. Pemerintah sebagai pembuat kebijakan harus menyediakan transportasi umum yang layak untuk masyarakat. Oleh karena itu untuk memecahkan permasalahan tersebut diperlukan suatu inovasi. Semarang Integrated Boat Rapid Transit atau Siborat adalah bentuk inovasi transportasi sungai yang diharapkan ramah dan efisien serta terintegrasi dengan transportasi lainnya. Siborat ini digunakan di sungai Banjir Kanal Timur Semarang yang menghubungkan wilayah Semarang Tengah hingga Semarang Utara. Saat ini, sungai Banjir Kanal Timur digunakan untuk mengalirkan air dari tengah kota ke Laut Jawa dan sebagai bagian dari pengendalian banjir di Kota Semarang. Diharapkan dengan Siborat ini masyarakat tidak perlu untuk menempuh jarak waktu yang lama dan mengurangi kemacetan di kota Semarang serta dapat menciptakan transportasi umum yang murah dan efisien.
POTENSI PEMANFAATAN KAYU GELAM DAN KAYU SENGON DALAM DUNIA KONSTRUKSI BERDASARKAN UJI KUAT LENTUR Basyaruddin, Basyaruddin; Suryaningsih, Alnovia -; Awali, Jatmoko
Rekayasa Sipil Vol 13, No 3 (2019)
Publisher : Department of Civil Engineering, Faculty of Engineering, University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.rekayasasipil.2019.013.03.6

Abstract

In 2013, The Ministry of Forestry revealed that the need for wood as material for construction was always increasing. In order to find the innovations regarding timber structure, this study was conducted to discover the flexural strength of gelam and sengon based on SNI 03-3959-1995. Also, specimens which 50 mm in depth, 50 mm in height and 760 mm in length were tested using two point loading method based on ASTM D-198. This research showed that the average flexural strength of gelam is 100.13 Mpa which is greater than sengon (82.62 Mpa). Furthermore, as simple truss structure, simulation indicated that gelam and sengon are still capable in resisting moment generated from service load.
MODELING OF SLUMP VALUE AND DETERMINATION OF INFLUENTIAL VARIABLES WITH REGRESSION APPROACH Eri Cahyani; Ari Wibowo; Indradi Wijatmiko
Rekayasa Sipil Vol 13, No 3 (2019)
Publisher : Department of Civil Engineering, Faculty of Engineering, University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.rekayasasipil.2019.013.03.2

Abstract

There are many factors underlying the instability of the consistency of the concrete mixture. The consistency of the concrete mixture was measured using a slump test. Slump tests are commonly used in measuring the quality of fresh concrete. The instability of the slump value becomes an unsolved problem. To facilitate predicting slump values, modeling is needed to reduce variations in concrete job mixs. Regression has been known as the basic method of predictive modeling. Collected data is divided according to the ratio of sand to: <38%, 38-44% and> 44%. The sand ratio data <38% is the most suitable model, because it has a value of R2 0.957, adj. R2 0.897 and MSE 0.31. The most influential variable is water, retarder, gravel 20-30mm. The resulting modeling is adjusted to the range of data collected. 
ANALISIS SAMBUNGAN BAUT BALOK KOLOM RANGKA BAJA STRUKTURAL DENGAN PROFIL IWF MENGGUNAKAN PROGRAM BANTU ELEMEN HINGGA Machmud Budi Sulistiyo; Gati Annisa Hayu; Entin Hidayah
Rekayasa Sipil Vol 13, No 3 (2019)
Publisher : Department of Civil Engineering, Faculty of Engineering, University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.rekayasasipil.2019.013.03.7

Abstract

Commonly joints problems (especially high strength bolt) were stiffness, ductility, and construction costs. This research was conducted with purpose to analyzed inner force and behavior that could be occurred on high strength bolted joints in steel frame using IWF profiles, such as stress, and reaction force-displacement. This study was divided into 2 step, first step was modeling on finite element software, and second step was analyzing the results and comparing it with the results from experimental study as validation base. In bolted joints model showed the best value on third trial with displacement value of 98,97 mm and reaction force of 41,57 KN. With validation to experimental results each one were 93,45% and 94,05%. Accuracy of hysteretic loop curve area was 98,46%.

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