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INDONESIA
Rekayasa Sipil
Published by Universitas Brawijaya
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Core Subject : Engineering,
Civil Engineering, Building, Construction & Architecture
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Articles 551 Documents
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DURABILITAS CAMPURAN AC-WC MENGGUNAKAN BATU GUNUNG BABA, TANA TORAJA Louise Elizabeth Radjawane
Rekayasa Sipil Vol. 17 No. 1 (2023): Rekayasa Sipil Vol. 17 No. 1
Publisher : Department of Civil Engineering, Faculty of Engineering, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.rekayasasipil.2023.017.01.14

Abstract

The decline in road service conditions in the form of road damage can be caused by water due to high rainfall so that it enters the pavement layer. This study aims to determine the durability or resistance of the AC-WC mixture using Mount Baba stone. By using the Marshall test method, the results obtained through the Marshall immersion test with variations in immersion time from 0.5 hours - 60 hours, namely the durability value of 95.02 % - 86 34%. Thus, there is a decrease in the durability of the mixture with the duration of the immersion time. This is due to the large number of cavities and pores filled with water, the mixture becomes impermeable or easily damaged.
KAJIAN POTENSI PENERAPAN EXTENSIVE GREEN ROOF BERBASIS STRUKTUR KAYU DI INDONESIA Ika Rahmawati Suyanto; Widyastuti Kusuma Wardhani
Rekayasa Sipil Vol. 17 No. 1 (2023): Rekayasa Sipil Vol. 17 No. 1
Publisher : Department of Civil Engineering, Faculty of Engineering, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.rekayasasipil.2023.017.01.12

Abstract

The availability of green space is decreasing along with the increase in population. Since then the land has been replaced by buildings as more people need a place to support human activities. As a result, the absorption of heat increases, causing the temperature in urbanized areas are higher relative to outlying areas (Urban Heat Island). Therefore, some efforts need to be made to reduce heat absorption, one of which is by applying the green roof. A strong roof structure and roof panel are required to implement green roofs. Wood is a material that has both strength and lightweight. However, the use of wood panels for roofing is not common in tropical areas due to the high rainfall. The wood roofing still has a potential to be used through the application of green roof technology that accommodate a waterproof layer and is not easily degraded by planting media. This study aims to examine the potential use of green roofs which made of wood structures and wood roofing in a tropical climate.
U-DITCH PRACETAK BERDASARKAN SNI 1725: 2016 SEBAGAI STANDAR DESAIN Titin Sundari; Fatma Ayu Nuning Farida Afiatna
Rekayasa Sipil Vol. 17 No. 1 (2023): Rekayasa Sipil Vol. 17 No. 1
Publisher : Department of Civil Engineering, Faculty of Engineering, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.rekayasasipil.2023.017.01.4

Abstract

Generally, local precast U-ditch does not yet have consistent dimensions and quality. The dimensions of the u-ditch are too large or too small with low power, making the u-ditch inefficient. This is because there is no design standard for U-ditch. This study aims to determine the strength of local precast U-ditch based on SNI 1725: 2016. The results of this analysis show that the flexural resistance of local U-ditch products is smaller than the external loads (𝝓 Mn < Mu).
DAMPAK NEGATIF PROYEK PEMBANGUNAN RUMAH TINGGAL TERHADAP BANGUNAN DI SEKITARNYA – STUDI KASUS DI SURABAYA Daniel Tjandra; Paravita Sri Wulandari
Rekayasa Sipil Vol. 17 No. 1 (2023): Rekayasa Sipil Vol. 17 No. 1
Publisher : Department of Civil Engineering, Faculty of Engineering, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.rekayasasipil.2023.017.01.5

Abstract

The need for housing in a metropolitan city such as Surabaya will increase with time.  These needs can be met by building new houses or renovating. Sometimes the construction and renovation of houses will more or less have an environmental impact on the surrounding buildings.  The case study in this paper aims to increase public awareness of the impact of construction project on the surrounding buildings. The case study was conducted by doing field observations on the location of a residential house construction which had an impact on the adjacent houses, located on the right and left side. It was obtained that the damage to the adjacent houses was caused by the demolition of the old building, the addition of loads, and the process of compaction of the backfill.  Repair and strengthening of buildings must be carried out to restore the function of the building and prevent further damage. Unfortunately, repairing the building requires significant additional costs and causes the construction time to be longer.
THE ASSESSMENT OF CITARUM RIVER WATER QUALITY IN MAJALAYA DISTRICT, BANDUNG REGENCY Finna Fitriana; Doddi Yudianto; S Sanjaya; Andreas F V Roy; Yong Chan Seo
Rekayasa Sipil Vol. 17 No. 1 (2023): Rekayasa Sipil Vol. 17 No. 1
Publisher : Department of Civil Engineering, Faculty of Engineering, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.rekayasasipil.2023.017.01.6

Abstract

Citarum River is one of the biggest rivers in Java Island and the primary source of Jakarta's water supply. Named the dirtiest river globally in 2013, the Indonesian government is committed to improving the Citarum River's water quality by 2025. However, the Majalaya District, the center of the textile industry area in the upstream part of the Citarum River, is indicated to have significantly contributed to the river pollution. Hence, it is essential to conduct a study to evaluate the water quality in the Citarum River, especially in the Majalaya District. The results showed a considerable decrease in water quality from upstream to downstream of the Citarum River in 2013-2021. Concurrently, it was also found that the factory effluent far exceeded the permissible limit.
AN IMPLEMENTATION OF LEAN CONCEPT WITH 5S TO ELIMINATE MATERIAL WASTE IN PRECAST FACTORY Roland Gasenda Suryaningrat; Indradi Wijatmiko; Yatnanta Padma Devia
Rekayasa Sipil Vol. 17 No. 1 (2023): Rekayasa Sipil Vol. 17 No. 1
Publisher : Department of Civil Engineering, Faculty of Engineering, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.rekayasasipil.2023.017.01.9

Abstract

Precast industry is currently experiencing an increase in demand from consumers. Due to increasing demand, a wide variety of products, and push production systems, factories suffer from excess waste, disorganized workplaces, and unhealthy working environments, so it needs a method to overcome these problems. In overcoming this problem, research was carried out by implementing a lean concept with the concept of Seiri, Seiton, Seiso, Seiketsu, Shitsuke (5S) on the handling of waste materials that occur in the precast concrete production process. Material waste is obtained from interviews and analysis of the production cost budget assisted by the Pareto 80/20 method to determine materials that are included in the waste category. From the results of the Pareto analysis, it was found that 5 materials were wasted, namely Reinforcement Ø 13, Concrete Sand, Wire, Oil Formwork Console, and PC Strand 12.7. Then the results are re-analyzed with cause analysis based on the results of brainstorming with a quantity surveyor, two material wastages were obtained, namely wire and formwork console oil. The waste will be repaired with the seiri concept in the form of making a warehouse near the work area, so that later it will eliminate material wastage so that it can save oil. 2930-liter console formwork and 5915 kilograms of wire, with a total cost savings of IDR 123,758.060
ANALYSIS OF MASONRY BEHAVIOR ON NON-ENGINEERED HOUSE BUILDING TOWARDS LATERAL DEFORMATION BY USING FINITE ELEMENT METHOD BASED ON GUIDELINE SRI HENY HIDAYATI; Agoes Soehardjono; wisnumurti wisnumurti
Rekayasa Sipil Vol. 17 No. 1 (2023): Rekayasa Sipil Vol. 17 No. 1
Publisher : Department of Civil Engineering, Faculty of Engineering, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.rekayasasipil.2023.017.01.10

Abstract

This study is based on the abundant damaged house building during the earthquake. Wall is an important part of a non-engineered house. It is constructed by clay bricks and mortar. The damage happened to the house building is not separated from the specification of the clay bricks used. Dynamic simulation towards the non-engineered construction would reveal the displacement value that happened to the structure of mansory that applies the guidelines from SNI, ACI, and condition in the field. The dynamic simulation of an ordinary non-engineered house employed finite element method. The purpose of this research is to find out the mechanical performance of the mansory when the earthquake is occurring. The method implemented in this research is scientific analysis through collecting the available theories and data from the previous research. A scientific method is started with deciding a concept based on the events frequently and generally happened in the field which are also considered a novelty. The following step is conducting data analysis by using finite element method where the maximum deformation displacement value reached ux 0.008 cm, uy 0.044 cm and uz 0.008 cm. From the simulation it can be concluded that the biggest displacement happened to mansory constructed based on the field condition.
OPTIMASI WAKTU DAN BIAYA PELAKSANAAN PROYEK JALAN DENGAN METODE CRASH PROGRAM (STUDI KASUS PEMELIHARAAN JALAN KECAMATAN TENGGARONG SEBERANG DAN TENGGARONG) Bernardo Sandrini Salasa Sandrini Salas; Dharwati P. Sari; Anung Sudibyo; Achmad R. Nur
Rekayasa Sipil Vol. 17 No. 1 (2023): Rekayasa Sipil Vol. 17 No. 1
Publisher : Department of Civil Engineering, Faculty of Engineering, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.rekayasasipil.2023.017.01.7

Abstract

Time, cost, and quality are three important elements of schedule that should be made in detail in order to assist in the evaluation of the project. In this research, we analyzed the acceleration of project completion duration. The case study on this research was taken in Tenggarong Seberang District and Tenggarong District. The method used in this research is the crash program method with the alternative implementation with a variety of added work hours and manpower, which are adding 1 hour, 2 hours, and 3 hours of work hours also the alternative of adding 25% and 50% of the manpower. This research aimed to determine the total time and cost of implementing the project after the crashed and determined the results of an optimal acceleration alternative by comparing the results of the analysis of the application of the crash program method. The work was accelerated (crashed) in this research is work that is on the critical path. The results of the application of the crash program method with the addition of working hours and manpower obtained an efficient acceleration alternative, namely the addition of 3 hours of working hours which resulted in the acceleration duration being 67 days or 25.56% faster than the normal duration of 90 days with a total acceleration cost of Rp 1,213,717,588.81 or 0.213% lower than the normal total cost of Rp 1,216,303,515.90.
PEMETAAN GEOSPASIAL RISIKO BANJIR DI SUB-DAS GUNTING, JOMBANG JAWA TIMUR Arbi Tri Kuswardhana; entin hidayah; Retno Utami Agung Wahyono
Rekayasa Sipil Vol. 17 No. 1 (2023): Rekayasa Sipil Vol. 17 No. 1
Publisher : Department of Civil Engineering, Faculty of Engineering, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.rekayasasipil.2023.017.01.8

Abstract

Floods are the most recurring natural disasters and impact human life, causing a severe economic downturn. The level of flood risk is a function of hazard and vulnerability. Flood risk-prone areas need to be identified to reduce the flood risk level. This study aims to assess flood risk based on spatial analysis results with Geographic Information Systems (GIS). The flood hazard map is built from remote sensing-based data in the form of a digital elevation model (DEM) applied using the frequency ratio weighting (FR) technique. Vulnerability maps are generated from social, economic, physical, and environmental data applied through techniques overlays weighted using the analytical hierarchy process (AHP). The resulting risk map shows that 21.93% and 6.40% of the total area are at a very high and high level of flood risk. This map is very useful for planning the flood management.
PENGEMBANGAN PENGEMBANGAN MODEL PERBAIKAN DAN PENINGKATAN KEKUATAN STRUKTUR SAMBUNGAN BALOK-KOLOM PADA BANGUNAN PASCA GEMPA sri murni Dewi; Wisnumurti; Ari Wibowo; Adi Susetyo Dermawan
Rekayasa Sipil Vol. 17 No. 1 (2023): Rekayasa Sipil Vol. 17 No. 1
Publisher : Department of Civil Engineering, Faculty of Engineering, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.rekayasasipil.2023.017.01.15

Abstract

This paper presents an experimental study on repairing damaged beam-column reinforced concrete joints using carbon fiber reinforced polymer (CFRP). The test objects were in the shape of the letter T which represented the beam-column connection. The test object came from the previous research which had been failure. The retrofitted action includes strengthening the column position, injection with concrete glue and adding CFRP. Two kinds of CFRP were use, CFRP sheets (EB) and CFRP strips (NSM). The integrity of concrete after injection were tested with Ultrasonic Pulse Velocity (UPV). The retrofitted specimens were tested in loading frame to occurred strength, stiffness and ductility for each kind of retrofitted action. Three kind of tested were held, bending in one direction, shearing in one direction, and quasi cyclic bending. The selection test adjusted to the damage history of specimen.  

Page 42 of 56 | Total Record : 551

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