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REKONSTRUKSI TADULAKO: Civil Engineering Journal on Research and Development
Published by Universitas Tadulako
ISSN : 27233472     EISSN : 27461033     DOI : https://doi.org/10.22487/renstra
Core Subject : Science, Social, Engineering,
Civil Engineering, Building, Construction & Architecture Decision Sciences, Operations Research & Management Engineering Environmental Science Transportation
REKONSTRUKSI TADULAKO: Civil Engineering Journal on Research and Development is a peer-reviewed journal published by the Civil Engineering Department, Engineering Faculty, Tadulako University. The journal is to publish research articles or original literature reviews covering all concentrations in the fields of Civil and Applied Engineering including Structural Engineering, Geotechnical Engineering, Water Resources Management, and Engineering, Transportation Engineering and Management, Construction Project Management, and other applied sciences related to the engineering field. Articles submitted for publication in the journal must have never been published by other media or journals and are free from plagiarism. It is a six-monthly journal, open-access and published in collaboration with the Indonesian Society for Geotechnical Engineering, Regional Commissariat of Central Sulawesi, and Indonesia Transportation Society, Central Sulawesi.
Arjuna Subject : Teknik (semua kategori) - Teknik Sipil dan Struktur
Articles 66 Documents
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Analisis Struktur Baja Tahan Gempa dengan Sistem SRPMK (Struktur Rangka Pemikul Momen Khusus) Berdasarkan SNI 1729:2015 dan SNI 1726:2012 Zachari, M.Y.; Turuallo, G.
REKONSTRUKSI TADULAKO: Civil Engineering Journal on Research and Development Vol. 1 Issue 2 (September 2020)
Publisher : Civil Engineering Department, Tadulako University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/renstra.v1i2.24

Abstract

The selection of material is one of the important aspects used to design a building as it is known that every type of material has a different characteristic. The steel material used as the main component of building structure because of its ductility is more than another material which is the main criterion to design an earthquake resistance building. In this paper, an earthquake steel resistant structure building will be design. This building structure will consist of a five-story office with a regular structure configuration. A special moment frame (SMF) used as the resisting structure system of the earthquake loads as the amount of its load is analyzed using the spectrum response method. The steel material used is type of A36 (fy = 250 MPa; fu = 400 MPa), concrete used f’c = 30 MPa. The design process then produces an earthquake steel resistant structure building, which satisfies the requirement of story drift with a maximum number of story drift occurred in the 2nd story which is 93.5 mm less than allowed story drift that is 95 mm. A structure element dimension used is a beam with a profile of W16x7x40 for every level in the X-axis direction, and the beam with a profile is W14x6.75x38 for every level in Y-axis direction, 12 cm thick plates and column with a profile W14x16x211 is regularly used to every level.
Aplikasi Metode PCI (Pavement Condition Index) Dalam Mengukur Tingkat Kerusakan Jalan dan Pengaruhnya Terhadap Kecepatan Kendaraan Ahmad, S.N.; Azikin, M.T.; Sukri, A.S.; Balaka, R.
REKONSTRUKSI TADULAKO: Civil Engineering Journal on Research and Development Vol. 1 Issue 2 (September 2020)
Publisher : Civil Engineering Department, Tadulako University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/renstra.v1i2.25

Abstract

The existence of a smooth highway is needed to speed up the process of transporting people, goods and services and shortening the travel time. If the road is damaged, it will result in a decline in the economy in an area. In an effort to improve road performance, it is necessary to know the level of damage and the type of damage to the road. This study will discuss the existing conditions of Durian Anduonohu and Manunggal roads based on visual observations and analyzed using the Pavement Condition Index (PCI) method, specifically for measuring vehicle speed, the moving car observer method is used. The final result of this research is the level of damage and type of road damage on Durian Anduonohu road, quite severe with a PCI value ranging from 30-67 with an average damage of 39% meaning bad conditions, with the equation from the regression analysis the following regression model results are obtained: Y = (1,390)*(0.056) x which means that there is an effect of the level of damage to the road on the speed of the vehicle at each additional PCI value. Analysis of the level of damage and types of damage to the Manunggal road segment with PCI values ranging from 41-55 with an average damage of 42%, which means that the road damage is in moderate condition (Fair), with the equation of the regression analysis the following Regression model results are: Y=(1.356))(0.044) x which means that there is an effect of the level of damage to the road on the speed of the vehicle at each additional PCI value. This research is expected to be a barometer of the Kendari city government or related agencies in trying to overcome or repair the two roads so that the flow of people, goods and services runs smoothly and the economy of the city of Kendari can continue to increase.
Penerapan Teorema Probabilitas Total dalam Analisis Resiko Gempa Wahyono, M.; Nurdin, S.; Bedu, A.; Eko, W.N.; Sari, R.N.
REKONSTRUKSI TADULAKO: Civil Engineering Journal on Research and Development Vol. 1 Issue 2 (September 2020)
Publisher : Civil Engineering Department, Tadulako University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/renstra.v1i2.26

Abstract

Total probabilistic theorem was applied to analyze seismic risk by mean Probabilistic Seismic Hazard Analysis (PSHA). Earthquake as natural earthquakes as a random natural event was approached by the concept of uncertainty. The PSHA method is described in 5 (five) stages of work, called identificating the source of the earthquake, characterizing the earthquake source, characterizing the seismicity, determinating the movement of soil surface occurring at a location due to the earthquake, the combining the uncertainty of the location of the earthquake, magnitude of the earthquake and prediction of soil surface movement parameters. Ez-Frisk computer Program was used to perform earthquake risk calculation. Earthquake risk analysis for the city of Bontang, East Kalimantan taken as a case study. Peak Ground Acceleration (PGA) in Bontang base rocks for some periodic of time presented in chart form as result of earthquake risk analysis.
Estimasi Biaya Konstruksi Pada Perumahan Tipe 45 di Sulawesi Tengah Menggunakan Regresi Kuadratik Rizal, A.; Fajri, M.; Yuniar, L.S.
REKONSTRUKSI TADULAKO: Civil Engineering Journal on Research and Development Vol. 1 Issue 2 (September 2020)
Publisher : Civil Engineering Department, Tadulako University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/renstra.v1i2.27

Abstract

his research is based on the background of the problem that cost estimation is very beneficial for the owner, contractor and consultant. Errors in estimating costs are very often done, this is due to lack of experience and information obtained by an estimator. The purpose of this study is to obtain an equation that can help an estimator in estimating costs whose results approach the actual cost and can speed up the estimation process. The data that used in this research is from RAB’s 45 type house in Central Sulawesi. The method that will be used in this research is Pearson Correlation and Quadratic Regression. Pearson correlation is used to see the correlation between the independent and dependent variables while the Quadratic Regression is used to get the equation between the independent variable and the dependent variable. Regression modeling results obtained are y=-649,15X1+0,0022X1^2+182X3-0.0005X3^2+e, with R2 = 95%. The variables that significant in this research are raw material ( X1) and concrete brick ( X3)
Analisis Karakteristik Hujan Ekstrim Untuk Mendukung Pengembangan Peringatan Dini Lahar Dingin di Lereng Gunung Merapi Iryani , S.Y.
REKONSTRUKSI TADULAKO: Civil Engineering Journal on Research and Development Vol. 1 Issue 2 (September 2020)
Publisher : Civil Engineering Department, Tadulako University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/renstra.v1i2.28

Abstract

Mt. Merapi cold lava disasters in 2010 had caused a lot of public infrastructure and facilities in the area around Mt. Merapi were damaged, due to the occurrence of debris flows triggered by extreme rainfall. Analysis of extreme rainfall characteristics are conducted to determine the pattern of distribution of the amount of hourly rainfall in the slopes of Mt. Merapi. To reduce the negative impact caused by cold lava flood, it is necessary to plan an Early Warning System (EWS) and the proper evacuation measures. EWS based Rainfall intensity, can refer to the Critical Line Curve. The research results showed the greatest rainfall intensity occurred in the Mt. Maron station Pwith the cumulative relative frequency of rainfall intensity >20 mm/hr in between the years 1988 to 2010 with 6.74%. Analysis of the incidence of the most extreme hourly rainfall of 14 rainfall stations in the slopes of Mt. Merapi in 1988 to 2010 occurred in kemasan station in 2010 with 621.5 mm in January at 6:00 p.m. to 7:00 p.m. Critical Line Curve Kali Gendol rain station Batur, Deles and Sorosan, non-causing rainfall in the dangerous area is 24 events (13.79%), causing rainfall in the dangerous area is 4 events (2.30%) and non-causing rainfall in the safety area is 146 events (83.91%). Cumulative Relative frequency rainfall intensity >20 mm/hr at rainfall stations close to the Kali Gendol i.e. Batur, Deles and Sorosan rainfall station from the highest to the lowest are 2.74%, 2.33% and 1.70%, respectively.
Studi Kelayakan Penggunaan Cangkang Kemiri Sebagai Pengganti Sebagian Agregat Kasar Terhadap Mutu Beton Haris, H.
REKONSTRUKSI TADULAKO: Civil Engineering Journal on Research and Development Vol. 1 Issue 2 (September 2020)
Publisher : Civil Engineering Department, Tadulako University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/renstra.v1i2.29

Abstract

In the current era of globalization, the development of concrete in the construction sector is very rapid, be it housing, offices, bridges, roads, dams, ports, and others. That is inseparable from the use of concrete as a part of building construction. The use of coarse aggregate for concrete mixes, namely natural stone, is a non-renewable natural resource. Therefore an alternative is needed as a substitute. One of the natural resources that can be renewed is hazelnut skin. Candlenut is a traditional plant that has various benefits, one of which is a candlenut shell. In this study, the materials used for standard concrete mixtures consist of water, cement, fine aggregate, and coarse aggregate. The water used for mixing the concrete is taken from the PDAM channel. The results showed that the effect of candlenut shells used as a substitute for some coarse aggregate decreased compressive strength results from the results of standard concrete compressive strength. The results obtained by the value of standard concrete compressive strength at 28 days of concrete were 27.19Mpa for concrete using Candlenut shells of 20% produce a compressive strength value of 17.33 Mpa at 28 days of concrete. 35% produce a concrete compressive strength value of 16.04 Mpa, while 50% produce a concrete compressive strength value of 15.17 Mpa. Thus the research shows that more and more candlenut shells are being used as a substitute for coarse aggregate in the concrete mixture.
Pengaruh Penuaan Aspal Pada Karakteristik Campuran Beton Aspal Lapis Aus AC – WC Mashuri, M.; Rahman, R.
REKONSTRUKSI TADULAKO: Civil Engineering Journal on Research and Development Vol. 1 Issue 2 (September 2020)
Publisher : Civil Engineering Department, Tadulako University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/renstra.v1i2.30

Abstract

The aging process of asphalt in the pavement layers of asphalt concrete road occurs when mixing in the Asphalt Mixing Plant and during the road service period. The asphalt aging process when mixing is called short-term aging and aging during the road service period is called long-term aging. AC - WC mixture is a wear layer and it is on the top layer of the surface which allows characteristics change that are influenced by several environmental factors (air, temperature and sunlight). This study aims to know the effect of asphalt aging on the characteristics of AC - WC mixture with Marshall method on some asphalt content that are 4.5%, 5.0%, 5.5%, 6.0%, 6, 5% and 7.0%. For testing on short-term aging (Short - Term Oven Aging, STOA) is by testing the mixture specimen AC - WC at 135o C before solidified for 4 hours and for long-term aging (Long - Term Oven Aging, LTOA) was carried out by testing the mixture specimen AC - WC at 85o C for 2 - 5 days. The results of this study found that asphalt aging had an effect on the characteristics of AC - WC mixture. Values of density, VFB, stability, flow tend to decrease with age. While VIM and VMA values tend to increase with age. Aging caused the mixture to became more rigid.
Kajian Penerapan Fondasi Sumuran Pada Jembatan Pombeve di Kabupaten Sigi Sulawesi Tengah Padondan, G.J.; Ramadhani, S.
REKONSTRUKSI TADULAKO: Civil Engineering Journal on Research and Development Vol. 1 Issue 2 (September 2020)
Publisher : Civil Engineering Department, Tadulako University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/renstra.v1i2.31

Abstract

Analisis Ketersediaan Air DAS Sausu Untuk Kebutuhan Air Pada D.I. Sausu Bawah, Kabupaten Parigi Moutong Andita, W.; Lipu, S.
REKONSTRUKSI TADULAKO: Civil Engineering Journal on Research and Development Vol. 1 Issue 2 (September 2020)
Publisher : Civil Engineering Department, Tadulako University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/renstra.v1i2.32

Abstract

This study aims to grasp and analyze the water availability in Sausu Watershed and the need of water in Lower Sausu Irrigation Scheme. The research begins with data collection and hydro-climatological analysis to determine whether the water is enough or not enough to be used during a hydrological period. To obtain the comparison between the needs and availability of water, a hydro-climatological analysis and calculation of water need are carried out. Methods that used namely the Penman Modification method and the F.J Mock method. Penman modification method is used to calculate monthly evapotranspiration (ETo) by taking into account climatological factors such as air temperature, wind speed, solar radiation and relative humidity. By applying the F.J.Mock method for calculating the water availability, the amount of water flow from the rain, characteristics of the drainage area and evapotranspiration can be calculated. Based on the results of data analysis for Sausu watershed area of 568.64 km², it shows that the average value of water availability in the lower intake for 1 year is app. 30.19 m³/sec with the maximum value of app. 48.149 m3/sec and the minimum is app. 4.134 m3/sec. Whereas the maximum water demand in the Lower Sausu irrigation scheme is app. 1.77 m³/sec with the minimum of 0.04 m3 /sec and the average is app. 0.49 m3/sec. It can be concluded that the water availability in the Sausu River Basin is sufficient to meet the water needs of the Lower Sausu Irrigation Scheme throughout the year, or there is a continuous surplus.
Analisis Kebutuhan dan Biaya Alat Berat untuk Pekerjaan Pemadatan Lapisan Permukaan Street-Race Circuit Mandalika Fihani, A.; Hasyim, Hasyim; Karyawan, I.D.M.A.
REKONSTRUKSI TADULAKO: Civil Engineering Journal on Research and Development Vol. 2 Issue 1 (March 2021)
Publisher : Civil Engineering Department, Tadulako University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/renstra.v2i1.223

Abstract

The Street-Race Circuit is being built in the Mandalika Tourism Special Economic Zone (KEK), Central Lombok, West Nusa Tenggara. The construction is targeted to be completed, before the MotoGP event on this circuit is implemented in 2021. One of the infrastructure related to this, which also really needs to be built to support the smooth running of the 2021 MotoGP is the development of access to the circuit location. The analysis carried out includes the calculation of heavy equipment productivity. Heavy equipment productivity is determined based on cycle times, production per hour, number of heavy equipment used, the amount of operating costs per hour. The analysis was carried out for the road surface layer work, namely the Asphalt Concrete Base Course (AC-BC) work. Based on the results of the analysis, it was found that the production for 1 unit of asphalt mixing plant (AMP) was 49.80 tons/hour and 9 units of dump trucks were 2.34 tons/hour. The spreader using the asphalt finisher can spread 109.18 tons/hour. As for the compactor, which is 18.55 tons/hour for 2 units of tandem rollers and 27.47 tons/hour for 1 unit of pneumatic tire roller. Other equipment is 9.96 m2/hour for air compressor and 2.74 liter/hour for asphalt sprayer. Meanwhile, in the Asphalt Concrete Wearing Course (AC-WC) work, several tools have the same productivity as the AC-BC job, namely asphalt mixing plant, air compressor and asphalt sprayer. Meanwhile, 13 units of Dump Trucks amounted to 2,338 tons/hour, 1 unit of asphalt finisher of 72,787 tons/hour, 3 units of tandem rollers of 12,367 tons/hour, and 1 unit of pneumatic tire roller of 18.31 tons/hour. The total cost of using heavy equipment for road surface layer work is Rp. 4,967,657,344. The total cost based on the contract document is Rp. 5,042,082,622. So that there is a difference in costs of Rp. 74,425,278.

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