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Rekayasa Sipil
Published by Universitas Brawijaya
ISSN : -     EISSN : -     DOI : -
Core Subject : Engineering,
Civil Engineering, Building, Construction & Architecture
Arjuna Subject : -
Articles 10 Documents
 1 
Search results for , issue "Vol 14, No 1 (2020)" : 10 Documents clear
Analisis Manajemen Risiko Pelaksanaan Pembangunan Jalan Tol (Studi Kasus : Proyek Pembangunan Jalan Tol Bekasi - Cawang - Kampung Melayu) Nia Rahmawati; Andi Tenrisukki Tenriajeng
Rekayasa Sipil Vol 14, No 1 (2020)
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.2020.014.01.3

Abstract

Construction of highway will increase the economy but it can’t be separated from risks. The purpose of this study is to analyze the risks at the stage of the implementation of highway construction and mitigation to minimize the negative impact. The study uses Descriptive Analysis and Analytical Hierarchy Process in highway construction of Bekasi-Cawang-Kampung Melayu. Based on the result of analysis, the most dominant risk in aspect: 1)Politics:change of structure in government; 2)Environment: land acquisition; 3)Economy: owner’s late payment; 4)Finance:high overhead; 5)Nature: weather delay; 6)Project: material delivery delay; 7)Human: fatigue caused overtime; 8)Technical: nonconformity of volume in contract and reality; 9)Criminal: loss of materials and equipment; 10)Safety: lack of worker awareness. Then the dominant risk will be mitigated.
Pengaruh Variasi Mutu Beton Bertulang Terhadap Cepat Rambat Gelombang Dengan Menggunakan Metode Non Destructive Test Lingga Ariya Dwisyahputra; Indradi Wijatmiko; Christin Remayanti Nainggolan
Rekayasa Sipil Vol 14, No 1 (2020)
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.2020.014.01.8

Abstract

Preferably in testing, building structures need not be destroyed. Tests that can be used on the concrete can use non-destructive methods that do not damage the test objects. Examples of testing can use UPV tests that are aimed at knowing the quality of concrete from the pulse velocity. The test objects used in this study are reinforced concrete beams with dimensions 20 x 20 x 100 cm. Test objects are differentiated into 3 quality variations of reinforced concrete with quality of concrete12.5 MPa, 18.75 MPa, and 25 MPa. To conduct analysis of the concrete density used PUNDIT PL-200. Ultrasonic pulse velocity into parameters on this test. From the results of the tests, there are differences in the value of different coefficient of the R2 determination. Acquired coefficient value of determination R2 = 0.9076 in direct method. The coefficient value of determination R2 = 0.8718 in the semi-direct method. Coefficient value of determination R2 = 0.3042 at Indirect Method 2 point, and in indirect method 3 point the coefficient value of determination R2 = 0.7524. From this research also obtained comparisons between the three methods, namely between the direct method and the semi-direct method, direct method and indirect method, also semi-direct method and indirect method.
Strategi Mitigasi Resiko Supply Chain Dengan Metode House of Risk Eko Wahyu Abryandoko; Mushthofa Mushthofa
Rekayasa Sipil Vol 14, No 1 (2020)
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.2020.014.01.4

Abstract

CV. Asri Tehnika is a company engaged in the construction, one of the projects that is now in the work by CV. Asri Tehnika is a project building construction of SDN Tlogoagung in Bojonegoro district. This research aims to identify various risks that occur in CV. Asri Tehnika at the time of construction of the building of SDN Tlogoagung District Kedungadem District Bojonegoro, along with the cause. The method used in this research is House of Risk, this method consists of two phases, namely the first phase to identify risk and risk agent, while the second phase is risk management. This research is expected to assist in the problem of supply chain activities within the company.
Analisis Stabilitas Dinding Penahan Tipe Kantilever Pada Landfill Tepi TPA Kota Masohi Kabupaten Maluku Tengah Provinsi Maluku Erwin Syaiful Wagola; Mentari Rasyid
Rekayasa Sipil Vol 14, No 1 (2020)
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.2020.014.01.9

Abstract

The construction of a retaining wall must be based on a stability calculation and safety factors because errors that occur can be no good. A retaining wall construction can be said to be safe if it is fulfilled. The purpose of this study was to analyze the stability of cantilever type soil retaining walls against shifting, overturning, and soil bearing strength. overturning, and strongly supporting the soil. The method of collecting and collecting data in the field used the field observation method.Wall stability analysis using analytical methods and numerical based software assistance. The results of data analysis show that the stability of the wall is safe against shear forces, rolling forces and the carrying capacity of the soil with a Safety Factor value of 4.05, 1.50, and 4.67.While the Out Put results from the application also show that the retaining wall at the Masohi City Landfill is still quite safe with a Safety Factor value of 1.80. Key Word: Cantilever, Landfill, Rolling, Shift, Safety Factor
Pengaruh Campuran Terhadap Kuat Tekan Beton Agregat Recycle Sulaiman, Lusman; Fisu, Amiruddin Akbar
Rekayasa Sipil Vol 14, No 1 (2020)
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.2020.014.01.5

Abstract

High consumption of freshwater and natural aggregate in concrete production becomes a matter of some concern that has been discussed recent years. An alternative partially or totally replacement for both materials is significant issue to reduce the negative impacts on the environment. Therefore, the aim of this research is to observe explicitly the effect of using seawater as mixing combined with recycled coarse aggregate and other materials to make new recycled aggregate concrete (RAC) under compressive load. The experimental laboratory test was conducted to total of thirty cylinders specimens of two to groups of mix design with w/c of 0.45. First was three types of percentage level of recycled coarse aggregate with targeted compressive strength of 25 MPa. The second was two types of mixtures and totally replaced by recycled coarse aggregate with targeted compressive strength of 30 MPa. Some specimens were mixed by seawater and all were placed in the freshwater-curing during some definite period of 7 and 28 days. The results show that the seawater and recycle aggregate were not significant influence to reduce the compression strength for first mix category, while the second mix category was having great influence up to 22% at 28 day. The reduction in compressive strength increases with an increase the targeted compressive load.
Analisis Keselamatan Lalu Lintas Jalan Tol Ngawi-Kertosono, Studi Kasus Ruas Madiun-Caruban dan Ruas Caruban-Wilangan Beti Irma Sari
Rekayasa Sipil Vol 14, No 1 (2020)
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.2020.014.01.1

Abstract

Toll roads can reduce travel time to be shorter, easier, more convenient, and smooth. However, many road users neglact safety because it’s too comfortable with road conditions that are straight, smooth, and without obstacles. Many road users who drive vehicles exceed the required traffic signs, causing traffic accident. Within 10 months of the operation of the Ngawi-Kertosono toll road on April 1, 2018, until February 24, 2019, traffic accidents reached 59 accidents on the Madiun-Wilangan toll road. From these data, it’s necessary to study the causes of toll road traffic accidents in accident-prone areas. As a first step, it’s necessary to determine the black site and black spots and the relationship between the geometric factors of the road to reduce the number of traffic accidents on the Madiun-Wilangan toll road. This calculation analysis uses the Z-Score and Cusum method by finding the black spot and black site areas. Based on the results of the analysis there are accident-prone areas on the toll road that is from KM 602 to 622 where the Z-Score is 1.733> 0 and Cusum 7.64> 0 so that the accident-prone area can be found on the Black Site and Black Spot results on the road location Madiun, Caruban and Caruban-Wilangan toll road. Suggestions from research need to be conducted outreach or outreach related to traffic and road safety regulations that often have accidents.
Analisis Risiko Rantai Pasok Material Terhadap Keterlambatan Pelaksanaan Proyek Konstruksi Hendi Kurniawan; Ida Ayu Ari Anggraeni
Rekayasa Sipil Vol 14, No 1 (2020)
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.2020.014.01.6

Abstract

The uncertainty of the supply chain in the process of procuring building materials can be a risk that results in delays in the implementation of construction projects. This study aims to analyze the material supply chain risks that affect delays in the implementation of construction projects. Supply chain risks are classified from Supply, Control, Demand, and Process. Data collection by survey method and respondents selected by purposive sampling method. The analysis used is the AHP method. The risk response is confirmed to the expert by the interview method. The results of the risk assessment found that the late delivery of material due to non-current financial problems with FR = 0.703 was the most risky factor resulting in project development delays.
The Utilization of Waste as Iron Ore in Making Concrete Aggregate Quality K.300 Rajiman Rajiman; Muhamad Amin; Harjianto Setiaji
Rekayasa Sipil Vol 14, No 1 (2020)
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.2020.014.01.2

Abstract

Concrete is an manmade building material that looks like stone. Concrete is a composite material consisting of coarse-grained material (aggregates or fillers) that is embedded in a solid matrix of material (cement or binder) that fills the space between the aggregate particles and glues them together. Concrete is used for road hardening, building structures, foundations, roads, bridges and the basis for fences.The method used in this research is study of literature. This research found that concrete using iron ore as an aggregate has a compressive strength higher than normal concrete that is equal to 38.90Mpa assuming greater size of iron ore as aggregate, the higher the Fe content, the size of escaped iron ore mesh aggregate 20, mesh 20 , mesh 5, 8-10 mesh and 10-12 mm mesh respectively 47,460%, 38,346%, 49,330%, 58,660% and 69,225%.
Akurasi Citra Data Foto Udara UAV Quadcopter Persimpangan Lalu Lintas Kota Kendari La Ode M. Nurrakhmad Arsyad; Statiswaty Statiswaty; Laode M. Iradat; M. Yamin; Try Sugiyarto
Rekayasa Sipil Vol 14, No 1 (2020)
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.2020.014.01.7

Abstract

The use of the Unnamed Aerial Vehicle (UAV) called “Drone” has been widely used in various areas of planning, one of them by mapping the highway traffic junction. The range of remote roaming, adjustable spatial resolution greatly gives flexibility in the effectiveness of field surveys. The mapping accuracy test conducted on 7 (seven) Unsignaling junction in Kendari City by Omisi and Komisi Equation method gives significant output and quite accurate to serve as further planning data. The difference between image and field measurement results, obtained accuracy of 96%, so that the use of UAV in supporting mapping, survey and field planning still prioritize effectiveness and accuracy of the measurement.
Analisis Pengaruh Panjang dan Bentuk Fiber Kaleng Bekas Terhadap Kuat Lentur dan Lebar Retak Balok Beton Bertulang Indradi Wijatmiko; Ari Wibowo; Christin Remayanti Nainggolan
Rekayasa Sipil Vol 14, No 1 (2020)
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.2020.014.01.10

Abstract

Pemanfaatan limbah sebagai material konstruksi merupakan salah satu inovasi dan solusi untuk mengurangi limbah. Pemanfaatan material limbah tersebut tidak hanya untuk mengtasi limbah tetapi juga untuk menghasilkan material konstruksi yang kuat dan bersifat green building. Salah satu limbah yang dapat dimanfaatkan dan banyak ditemukan di lingkungan sekitar adalah kaleng kemasan baik untuk minuman maupun makanan. Kaleng bekas kemasan merupakan material yang dapat didaur ulang dan dimanfaatkan kembali. Dengan menemukan manfaat lain dari kaleng bekas tentu akan meningkatkan nilai ekonomi dan fungsi dari kaleng bekas sehingga masyarakat dapat melihat sisi dan nilai lain dari kaleng bekas. Kaleng bekas yang telah dipotong-potong sehingga menyerupai serat/fiber dapat menjadi material fiber pada beton bertulang. Pada penelitian ini kaleng bekas dipotong sehingga dimensi nya menjadi 2 x 40 mm (polos dan pilin) dan 2 x 80 mm (polos). Fiber tersebut ditambahkan sebanyak 10% dari volume benda uji dan kemudian dilakukan uji lentur dan pengamatan lebar retak. Beton fiber memiliki kelemahan yaitu lemahnya ikatan antara fiber dengan semen sehingga dilakukan penelitian mengenai pengaruh panjang dan bentuk fiber kaleng bekas terhadap kuat lentur dan lebar retak beton betulang. Variasi fiber 80 mm polos memiliki bidang geser yang lebih luas daripada variasi lainnya sehingga memiliki ikatan fiber semen yang lebih baik dan dapat meningkatkan kuat lentur dan mengurangi retakan yang terjadi.

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