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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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PERANCANGAN SISTEM PAKAR UNTUK MENILAI KINERJA IRIGASI Hoerudin Hoerudin; Budi Santosa
Rekayasa Sipil Vol. 16 No. 2 (2022): Rekayasa Sipil Vol.16. No.2
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.2022.016.02.1

Abstract

Irrigation is a supporting infrastructure for water distribution in agriculture. Its role is vital, especially for agricultural areas which are not rain-fed, meaning that to irrigate agricultural areas the irrigation infrastructure is needed. It is important for all parties involved in agriculture and irrigation management institutions to find out and ensure the condition and performance of an irrigation network, whether its function is still as planned or even vice versa. So far, the performance evaluation of irrigation networks is still carried out conventionally and only reaches a form of Maintenance Operation report, not specific to its performance. So based on these conditions, this research will build an expert system that can be used to assess the performance of irrigation networks. The design begins by determining the logic of assessment that will be used as a way of thinking from the expert system that will be built. The indicators used by the system to assess irrigation performance are as stated in the regulation of the Ministry of Public Works and Public Housing No. 12 of 2015. After designing the expert system, the next step is to simulate it using the data available in the operation and maintenance reports of some irrigation networks that are used as samples. Then the simulation results are analyzed so that it can be known whether the system can work as planned or not. The system simulation results show a mismatch between the two indicators namely the performance of infrastructure and water services. While other assessment indicators have logical results.
PERENCANAAN ULANG ANGGARAN BIAYA DAN WAKTU PELAKSANAAN GEDUNG PERKULIAHAN DENGAN MENGGUNAKAN METODE BIM Rizky Ilham Mardhani; Anik Ratnaningsih; Syamsul Arifin
Rekayasa Sipil Vol. 16 No. 2 (2022): Rekayasa Sipil Vol.16. No.2
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.2022.016.02.3

Abstract

The speed of completing all stages of the project will cause major complications in the construction management system. The BIM method can integrate all projects that can save costs and time so that it is effective and makes it easier to coordinate in order to streamline the project. The purpose of this study is the planning of a 7-story economic and business building at the University of Jember using BIM application and steps to mmodel the building using a cost and time budget. In this research, the stages in structure modeling using BIM aids, the results, the results of reinforcement modeling and the required budget plan are Rp. 9,400.450.878.04 the time required is 189 days or 6 months 9 days.
RELATIONSHIP OF AREA RATIO TO DISPLACEMENT ON SUBGRADE STABILIZED BY DEEP SOIL MIXING Dara Ayu Lisna Hadi; Yulvi Zaika; As’ad Munawir
Rekayasa Sipil Vol. 16 No. 2 (2022): Rekayasa Sipil Vol.16. No.2
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.2022.016.02.6

Abstract

Expansive clay soil has high potential of swelling due to minerals content which bind water, therefore, soil improvement is required to stabilize the swelling behavior by add binder additive such as lime in deep soil mixing method (DSM). In this study, Finite Element model approach was performed with embankment provided on the top of expansive clay layer to provide bearing layer for road construction. As the deep soil mixing is applied on the subgrade (expansive clay layer), some model variation is performed such as diameter variation with 0.4m; 0.6m; 0.8m, depth variation with 5m; 6.5m; 8m and space variation 0.8 m;1.2m;1.6m; 2.4m. Area ratio parameter also used for ease understanding of deep soil mixing behavior with so many model variations provided. Analysis results shows that higher area ratio of deep soil mixing will provide lower displacement value either immediate displacement or consolidation displacement. Moreover, plot result of area ratio shows that area ratio of 0.4 provide effective value regarding consolidation displacement and duration.
IDENTIFIKASI PENYEDIA JASA KONSTRUKSI SEBAGAI APLIKATOR BUILDING INFORMATION MODELLING DI INDONESIA (Identify construction service providers as Building Information Modeling applicators in Indonesia) Bambang Herumanta; Agus Nugroho
Rekayasa Sipil Vol. 16 No. 2 (2022): Rekayasa Sipil Vol.16. No.2
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.2022.016.02.4

Abstract

The Indonesian government through the Minister of Public Works and Public Housing Regulation number 22/2018 has required the use of BIM in the construction of state buildings with criteria above 2000 square meters and over two floors. These regulations are binding on stakeholders such as owners, consultants, and contractors. This study aims to identify construction service business entities related to the use of Digital Building Information Modeling technology. The research steps included: preparing the object of research in the form of a list of contractors and consultants in Indonesia. The various data collection methods used to find and complete the data required in this research process were: preparation of data search tools in the form of questionnaires, interviews with contractors and consultants, Submitting questionnaires to contractors and consultants. Processing and analysis of the data that has been obtained is then processed and analyzed for the preparation of the final research report. Data processing was carried out using statistical software tools. The results showed that the companies that implemented BIM the longest, namely> 5 years were 28%, the 1-2 years time span was 17%, the 3-4 years time span was 22%, and those <1 years were 33%. Companies that apply BIM> 5 years according to our data are state-owned companies (State-Owned Enterprises), while those with less than one year of experience are private companies. Reduction of time for contractors and / or consultants, for KW10-15 by 17%, KW15-30 by 17%, KW30-40 by 22%, and for K40-50 by 44%. In terms of time, the effect of implementing BIM in companies can be said to reduce the amount of time and the most dominant is the reduction of time by 40% - 50%. Cost reduction for contractors and / or consulting companies, for KB5-15 by 50%, KB15-25 by 16%, KB25-30 by 17%, and for KB30-40 by 17%. In terms of costs, as a result of implementing BIM in companies, it can be said that it reduces the amount of costs and the most dominant is the cost reduction of between 5% - 15%.
Ketahanan Mortar Ringan Campuran Gula Aren dan Ragi pada Suhu Tinggi: Narrative Review Shelly Christina; Daniel Kristanto; Fahri Hafisuddin; Monita Olivia
Rekayasa Sipil Vol. 16 No. 3 (2022): Rekayasa Sipil Vol.16. No.3
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.2022.016.03.1

Abstract

Lightweight mortar is specific type mortar that made with adding up a foaming agent. Lightweight mortar has a lot of pores or cavity that filled by air which causing reduction of the mortar’s weight. With its high porosity, the lightweight mortar has better heat insulation than common mortar. There are many pieces of research and applications of lightweight mortar in the last few years, and this review is focusing on lightweight mortar that made with a natural additive which has good high-temperature resistance. There are many additives can be used such as yeast and palm sugar. Yeast is the microorganism that can be used as a foaming agent because it can produce carbon dioxide (CO2) that create a lot of pores on the mortar through the glycolysis process. Palm sugar is disaccharide groups sugar which is sucrose that consists of glucose and fructose. Glucose can reduce gypsum consumption in mortar and ettringite formation. Besides, sugar contains lignin which can increase the bonding strength of mortar’s components. This study proofs that innovation of lightweight mortar with organic additive has a long-term potency with its durability on high temperature.
Quality in Housing Project: Examining the Relationship Towards Labour Productivity, Rework, And Customer Satisfaction Using PLS-SEM Approach Tanzil Budinata; Budi Susetyo
Rekayasa Sipil Vol. 16 No. 3 (2022): Rekayasa Sipil Vol.16. No.3
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.2022.016.03.2

Abstract

From the results of the data analysis using PLS-SEM, it was found that quality performance has a strong relationship among the tested variables. Especially on customer satisfaction and rework variables. Customer satisfaction and rework have path coefficient value (β)0.325 and -0.558 respectively. With this result, it can be concluded that better-quality performance will improve customer satisfaction and rework reduction. The findings of this study provided important contribution for construction practitioners especially those who involved in the development of housing project to pay more attention in the implementation of quality management by developing effective and efficient project quality program. thus, labour productivity, reduction of rework and customer satisfaction can be significantly improved. Considering, housing projects vulnerable facing quality failure due to low-quality management on site were performed by mostly housing contractors in Indonesia.
PREDIKSI UMUR WADUK GUNUNGROWO SETELAH PENGERUKAN Dyah Ari Wulandari
Rekayasa Sipil Vol. 16 No. 3 (2022): Rekayasa Sipil Vol.16. No.3
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.2022.016.03.3

Abstract

In 2015 the Gunungrowo Reservoir was dredged to reduce sedimentation. After dredging, it is necessary to carry out sedimentation analysis to determine the reservoir life to be achieved. This analysis is intended to evaluate sediment deposition patterns that have occurred up to 2015 and calculate reservoir life that can be achieved after dredging in 2015. The reservoir life is analyzed based on how long the dead storage has been filled with sediment. Sediment entering the reservoir is calculated based on reservoir bathimetri and the suspended sediment entering reservoir. The result shows most of the sediment settles in the effective storage and  the reservoir life can reach up to 243 years after dredging.
SERVICES PERFORMANCE ANALYSIS FOR ONLINE TRANSPORTATION AND PUBLIC TRANSPORTATION IN KUPANG CITY Andy Agung Wahyu Utama; Achmad Wicaksono; Ludfi Djakfar
Rekayasa Sipil Vol. 16 No. 1 (2022): Rekayasa Sipil Vol.16. 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.2022.016.01.5

Abstract

This study intends to determine the service performance of online transportation and public minibus transportation in Kupang city, using the Importance Performance Analysis (IPA) method. From the research results, there are several variables related to the performance of online transportation that falls into the "low priority" category, namely the availability of light fire extinguishers, cleanliness facilities, and affordability of the price. As for public minibus, there are several variables that fall into the "top priority" category, namely the identity of the driver and the behavior of the driver and vehicle crew. Some variables fall into the “low priority” category, namely safety equipment, health facilities and stop times at the terminals.
ANALISIS PRIORITAS PENANGANAN BANJIR KALI KONTO, PROVINSI JAWA TIMUR Dian Indrawati; Mohammad Bagus Adityawan; Diki Maulana Ichsan; Dhemi Harlan; Joko Nugroho
Rekayasa Sipil Vol. 16 No. 3 (2022): Rekayasa Sipil Vol.16. No.3
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.2022.016.03.4

Abstract

Flood in Kali Konto is a disastrous hazard which strikes a lot of housing, infrastructures and paddy fields along its river banks almost every year. In 2021, along with destroyed revertment at roolagh 70 area, flood inundated more than 10 villages in Kabupaten Jombang and several more in Malang and Kediri. However, flood management at Kali Konto needs special consideration because several conditions, include watershed area pattern, extremely slope condition changing, numerous materials from Kelud mountain eruption in several part of Konto river, and a lot of infrastructures which laid in Konto river. This paper discussed about appropriate infrastructures which derived from hydrology and hydraulics modeling for Q2 and Q50 flood return periods. Since the model resulted 49 locations, Analytical Hierarchy Process (AHP) model used for determining priority for scaling down flood hazard in Kali Konto. The most priority comes to Karang Tengah, Blaru and Bugasur Kedaleman area based on the most losses occurred.
Estimasi Dimensi Optimum dan Rasio Tulangan Gedung Hotel Yogyakarta dengan Artificial Neural Network Akhmad Aminullah; Kinanti Faradiba Harahap; Henricus Priyosulistyo
Rekayasa Sipil Vol. 16 No. 3 (2022): Rekayasa Sipil Vol.16. No.3
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.2022.016.03.5

Abstract

Cost estimation at the conceptual design stage of a building is necessary because it is considered as a fundamental input in further decision making. This paper presented a neural network method in approximating the optimum dimension and the minimum reinforcement ratio of beams and columns at the conceptual design stage of hotel buildings in Yogyakarta. A group of 27 building variations were prepared as the training data for the set up neural network model. Fourteen empirical formulas were obtained which could be used to estimate the optimum dimension and minimum reinforcement ratio of beams and columns with 5 parameters which consist of soil sites class, beam spans, number of floors, concrete strengths and diameters of the reinforcing bar.

Page 40 of 56 | Total Record : 551

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