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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 106 Documents
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Tinjauan Kinerja Simpang Empat Bersinyal Menggunakan Program KAJI dan SIDRA (Studi Kasus: Simpang Pasar Moodu, Gorontalo) Arsyad, A.W.; Kadir, Y.; Desei, F.L.
REKONSTRUKSI TADULAKO: Civil Engineering Journal on Research and Development Vol. 3 Issue 1 (March 2022)
Publisher : Civil Engineering Department, Tadulako University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/renstra.v3i1.399

Abstract

The Moodu Market intersection is a signalized intersection formed by the convergence of Jalan Sultan Botutihe-Jalan Matolodula and Jalan Prof Dr. H. Aloei Saboe. This intersection is one of the accesses to the Aloei Saboe Hospital, Fourth Campus of the State University of Gorontalo, offices in Bone Bolango Regency, and close to Moodu market. Large traffic flows that pass through this intersection causes congestion. The purpose of this research was to analyze the permormance of the intersection to determine the level of service at the intersection. The analytical method used to determine the performance of the intersection was conducted using the KAJI and SIDRA programs. Observations were conducted in three days (Monday, 22 March 2021; Thursday, 25 March 2021; and Sunday, 28 March 2021) starting att 06.00-18.00 WITA. The data used in the analysis included the intersection’s geometry, signal time, traffic volume, side barrier, cruise speed, pedestrian, and the population of Gorontalo City. The data was processed to find the values used to determine the performance of the intersection. Based on the results of analysis using the KAJI program, the average delay was 16.73 seconds for the north approach (Jalan Prof. Dr. H. Aloei Saboe), 12.75 seconds for the south approach (Jalan Matolodula), 25.86 seconds for the east approach (Jalan Sultan Botutihe), and 52.67 secinds for the west approach (Jalan Sultan Botutihe). Meanwhile, the results of the analysis using the SIDRA program showed that the average delay was 64.4 seconds for the north approach (Jalan Prof. Dr. H. Aloei Saboe), 13.1 seconds for the south approach (Jalan Matolodula), 42.0 seconds for the east approach (Jalan Sultan Botutihe), and 13.3 seconds the west approach (Jalan Sultan Botutihe). The average delay of the intersection based on the KAJI program was 32.11 seconds where its Level of Service was D while the average delay of the intersection based on the SIDRA program was 36.8 secinds whereas its Level of Service was D. The average percentage difference in the intersection delay using the KAJI and SIDRA Program was 12.75%.
Kajian Pola Aliran di Hilir Pintu Sorong dengan Material Dasar Saluran Pasir Lempung Rustiati, N.B.; Suciani, N.
REKONSTRUKSI TADULAKO: Civil Engineering Journal on Research and Development Vol. 3 Issue 1 (March 2022)
Publisher : Civil Engineering Department, Tadulako University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/renstra.v3i1.404

Abstract

The operation of a damaged (jammed) sluice result unsuitable velocity distribution with the design. This causes turbulence of the flow which results the hydraulic jump. The hydraulic jumps as a function of energy absorbers. The large energy will cause damage to the water structure. Therefore, there is a need for research to obtain flow profiles. The aims of the research is to investigate the flow characteristic and hydraulics jump that occurred at downstream of manually moving of sluice gate. The height of opening gate set up variated at 0.4 cm to 1.4 cm. The range of using variated discharge from 0.108 lt/s to 0.524 lt/s. The result of investigation showed that the higher of opening gate at the same discharge value the hydraulics characteristic at the downstream of sluice gate decreasing. The hydraulics characteristic are the water depth, hydraulics jump and the flow characteristic. As a results variation discharge and opening gate are subcritical flow.
Kinerja Portal Struktur Gedung Tahan Gempa dengan Sistem Ganda Menggunakan Metode Pushover Analysis Septian, N.; Turuallo, G.; Sulendra, I.K.
REKONSTRUKSI TADULAKO: Civil Engineering Journal on Research and Development Vol. 3 Issue 1 (March 2022)
Publisher : Civil Engineering Department, Tadulako University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/renstra.v3i1.405

Abstract

Buildings damages due to earthquakes generally happen because designs of the buildings do not consider earthquake resistance aspects and do not fulfil the technical standards of earthquake resistant buildings. The structure designed in this work was a seven-storey office building, with a symmetrical design plan. The earthquake-resisting system used was dual system with special moment resisting frame (SMRF) and special shear wall for reinforced concrete. The materials used in this design were concrete with compressive strength of f 'c = 30 MPa, Plain Steel Bars Grade 24 (fy = 235 MPa), and Deformed Steel Bars Grade 40 (fy = 390 MPa). The calculation structural elements results gave: the size of main beams of 40 x 60 cm2, with reinforcement varying from 4D22 to 12D22 in the support area and from 3D22 to 5D22 in the midspan area; secondary beams with the size of 25 x 40 cm2, with reinforcement of 2D22 both in the support area and midspan area; the size of columns were 95 x 95 cm2, with reinforcement varying from 20D25 to 28D25; a 30 cm thick of shear walls reinforced with 2D22-175 mm (in x-axis) and 2D22-125 mm (in y-axis); 12 cm thick slabs reinforced with Ø12-200 mm . For the tie beams with the size of 40 x 55 cm2, had reinforcement varying from 2D22 to 4D22 in the support area and from 3D22 to 5D22 in the midspan area. Pushover analysis results in a maximum total drift  of 0,00425 which means the performance level of the structure is Immediate Occupancy
Analisis Perpindahan Besar Akibat Gaya Non-Konservatif Dolu, A.; Nasution, A.; Rivani, A.; Oka, G.M.
REKONSTRUKSI TADULAKO: Civil Engineering Journal on Research and Development Vol. 3 Issue 1 (March 2022)
Publisher : Civil Engineering Department, Tadulako University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/renstra.v3i1.407

Abstract

Structural applications based on large displacement analysis are widespread in various fields, such as the application of aircraft structures, membranes, cables, pipelines and risers. In this study, the author reviews the structural responses based on large displacement theory and non-conservative load models, assuming linear sections and materials. The parameters reviewed are the variation of the load factor and the variation of the slope angle of the load P at the end of the span. Solving non-linear differential equations with non-conservative force, using numerical integration method. The simulation results with the variation of the load factor with the angle of inclination, vertical and horizontal displacements are obtained, where the final orientation of the acting force corresponds to the deformation of the structure, and the maximum deformation occurs at a load angle of 90o, the deformation decreases for the angle orientation is getting smaller.
Persepsi dan Tingkat Keselamatan Pengguna Sepeda di Kota Palu Ridwan, N.A.; Ramlan, R.; Lestari, S.P.; Fadilah, I.
REKONSTRUKSI TADULAKO: Civil Engineering Journal on Research and Development Vol. 3 Issue 1 (March 2022)
Publisher : Civil Engineering Department, Tadulako University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/renstra.v3i1.410

Abstract

Since the outbreak of the Covid-19 Pandemic in Indonesia, there has been an increase in public interest in using bicycles, especially when exercising. This study aims to determine the characteristics, behavior, safety, habits, and perceptions of bicycle users in Palu City at this time, then a questionnaire was distributed with a total of 132 participating respondents. The method of descriptive and Frekuensi data analysis shows that the characteristics of cyclists generally cycle in weekend (88,6%) which is to exercise or visit sightseeing spots (78%), cyclist behavior is generally still good in the relationship between road users (98,5%), cyclist safety is indicated by the accident rate of 43,2% which is generally a single traffic accident (91,2%), cyclist generally increases their habit of exercising or visiting the sightseeing spots (10,6%) and visiting friends or family’s houses (5,3%) and the perception of cyclist who generally understands safety requirements when cycling (79,5%) and agrees that cycling can improve environmental quality (90,2%).
Identifikasi Risiko yang Mempengaruhi Pelaksanaan Proyek Konstruksi Jalan di Kota Palu Berdasarkan Persepsi Konsultan Fahirah, F.; Tlantan, J.S.
REKONSTRUKSI TADULAKO: Civil Engineering Journal on Research and Development Vol. 3 Issue 1 (March 2022)
Publisher : Civil Engineering Department, Tadulako University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/renstra.v3i1.411

Abstract

In the implementation of a road construction project in any form and anywhere will never avoid risk, both small risk and big risk. The larger the scale of a construction project, the greater the possibility of risks that will occur if these risks are not managed properly. The purpose of this study was to identify risks that affect the implementation of road construction projects based on the perceptions of the consultants. Primary data was collected through the distribution of questionnaires to consulting companies that have supervised the implementation of road construction. The data was processed using descriptive statistics, Relative Rank Index (RRI) and Correlation Analysis. The results showed that 5 dominant risks were identified that affected the implementation of road construction based on the consultant's perception, namely 1) Using inappropriate work methods would make work late (RRI = 0.896), 2) Wrong Planning Data of DED (Detail Engineering Design)  that resulted in frequent design review (RRI = 0.880), (3) inefficient use of heavy equipment makes work productivity not achieved according to plan (RRI = 0.864), (4) limited field workers resulting in productivity cannot be maximized (RRI = 0.864, (5) maintenance affects the level of damage to heavy equipment (RRI = 0.824). The risk of using an inappropriate work methods would make the work late is strongly correlated with the risk of limited field workers resulting in productivity cannot be maximized, with a correlation value of 0.542.
Studi Eksperimen Penambahan Tailing Pada Campuran Mortar Sebagai Substitusi Parsial Semen Untuk Dinding Panel Kurniaty, D.R.
REKONSTRUKSI TADULAKO: Civil Engineering Journal on Research and Development Vol. 3 Issue 1 (March 2022)
Publisher : Civil Engineering Department, Tadulako University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/renstra.v3i1.412

Abstract

Poboya is located in East Palu District, Palu City, Central Sulawesi. This village is now an area that has become a traditional gold mining activity. The end result of the mining process in the form of these deposits becomes waste which is commonly referred to as tailing. This waste contains a lot of carbon and no one has utilized it. This study was conducted to determine the optimum percent value of adding tailing to the mortar mixture so that it can affect the compressive strength of the mortar. This research uses experimental methods and literature studies. The location of the research was carried out at the Laboratory of Structures and Building Materials, Faculty of Engineering, Tadulako University. The variations used in the use of gold mine waste (tailing) as partial cement substitution are 50% and 75% by weight of cement. Tailings will replace some of the cement in a mortar mix made of sand, cement and water. The test to be carried out is the compressive strength of the mortar at the age of 7 and 28 days. Mortar test object made measuring 5 x 5 x 5 cm. The results obtained showed that 50% tailings had a higher compressive strength of 156 kg/cm2 than mortar using 75% tailing only had a compressive strength of  21.33 kg/cm2 at the age of the specimen 28 days. Mortar is used for the manufacture of wall panels with ferrocement technology.
Asesmen Bangunan Gedung Pemda Kota Palu, Donggala dan Parigi Moutong Pasca Gempa 28 September 2018 Listiawaty, H.; Sulendra, I .K.; Hilmansyah, T.
REKONSTRUKSI TADULAKO: Civil Engineering Journal on Research and Development Vol. 3 Issue 1 (March 2022)
Publisher : Civil Engineering Department, Tadulako University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/renstra.v3i1.414

Abstract

After a strong earthquake with a magnitude of 7.4 on the Richter Scale with a hypocenter of 10 km and an epicenter of about 70 km north of Palu City, precisely in Lende Village, Sirenja District, Donggala Regency, it caused damage and collapse of buildings due to vibrations, fractures of down lifts and up lifts around the fault trajectory. Palu-Koro. Damage and failure of high-rise and non-rise buildings occurred in Palu City, Donggala City, and Parigi City. Damage to the building can be categorized as light, moderate or heavy damage, so it is deemed necessary to conduct an assessment according to the applicable requirements both on a national scale (using the Ministry of Public Works and Public Housing's 2010 form) and an international form (using a form from the World Bank). This activity aims to determine the level of damage and post-earthquake handling in the form of minor repairs, reinforcement and repair of structural and non-structural elements. There are 6 (six) main buildings in the 3 (three) areas that have been assessed to determine the category of damage and actions for rehabilitation and reconstruction. Damage to the building structure with the category of Light Damage occurred in the Palu City DPRD Office building, the Donggala Regent and DPRD Office and the Anuntaloko Parigi Hospital Inpatient Building. Those that were moderately damaged were the Palu Mayor's Office building and the Parigi Moutong DPRD office. The damaged buildings still allow for repairs and reinforcement according to the level of damage. The repair and strengthening of buildings in order to get good results must be carried out with the right method, good materials and tools and technology and carried out by experienced workers with high qualifications
Pengaruh Infrastruktur Transportasi Terhadap Gross Domestic Product (GDP) Per Capita Pada Negara-Negara Anggota ASEAN Wafa, M.I.; Narendra, A.
REKONSTRUKSI TADULAKO: Civil Engineering Journal on Research and Development Vol. 3 Issue 1 (March 2022)
Publisher : Civil Engineering Department, Tadulako University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/renstra.v3i1.416

Abstract

The purpose of this study is to model the relationship between Gross Domestic Product (GDP) and transportation infrastructure in ASEAN member countries. In addition, this study also compares the data predicted by the model with actual data in Indonesia. Transportation infrastructure includes air transportation, sea transportation, and land transportation (railway). The data used is secondary data from the World Bank (World Development Indicator) 1960-2019. The analytical method used in this research is Statistical Descriptive Analysis and Multivariate Regression Analysis. The results of this study resulted in a multivariate regression model Y = 6,478 – 7,871(X2) + 4,875(X4) – 2,390(X5) – 2,27(X7) + 5,569(X8). This model produces a p-value of 2.619E-13 <0.05, which means that this model has a significance of 2.619E-13 and produces an R2 of 0.95 which means the variables X2 Air transport, passengers carried, X4 Quality of port infrastructure, X5 Container port traffic, X7 Rail lines, X8 Railways, passengers carried affect the Gross Domestic Product (GDP) per capita by 95% and the other 5% is influenced by other factors. This regression model in predicting actual data for the case of GDP in Indonesia is 120.84%, meaning that this model cannot be used to predict actual data in the case of GDP in Indonesia.
Pemodelan Jumlah Kematian di Jalan Raya Per Satu Juta Penduduk B. Setiyawan; A. Narendra
REKONSTRUKSI TADULAKO: Civil Engineering Journal on Research and Development Vol. 3 Issue 2 (September 2022)
Publisher : Civil Engineering Department, Tadulako University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/renstra.v3i2.426

Abstract

This study aims to decide the factors that influence Road fatalities per one million inhabitants in member countries of the Organization for Economic Co-operation and Development (OECD). This research data uses a dataset covering 19 member countries of the Organization for Economic Co-operation and Development in 2010 – 2018. This research method uses multivariate analysis with multiple linear regression techniques using several indicators. Nine independent variables are used in this model, namely (X1) road passenger transport in passenger-km per one thousand units of current Gross Domestic Product (GDP) United States Dollar (USD), (X2) road freight transport in tonne-km per one thousand units of current Domestic Product (GDP) United States Dollar (USD), (X3) density of road (km per 100 sq. km), (X4) road transport infrastructure investment in constant United States Dollar (USD) per inhabitant, (X5) goods road motor vehicles per one thousand inhabitants, (X6) motorcycles per one thousand inhabitants, (X7) passenger cars per one thousand inhabitants, (X8) road motor vehicles per one thousand inhabitants, (X9) road traffic in thousand vehicle -km per road motor vehicle. One variable (Y) road fatalities per one million inhabitants, as the dependent variable. The results of the analysis showed that the independent variables had a partial significant effect on road fatalities. From the validation results obtained the value of R² the model is 60%, the F-statistic is 16.03 with a significance value of 0.0000 and the correlation value of the model is 0.66. The resulting multiple regression analysis model is: Y = 69.3071 - 0.0936.X1 + 0.1225X2 + 0.0020X3 - 0.0484X4 + 0.2070X5 + 0.3829X6 - 0.0364X7 -0.0354X8 + 0.0010X9

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