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2018 CITIES International Conference: Spatial Economic Transport Interaction for Sustainable Development

作者： Wibisono, R.E. Cahyono, M.S.D. Muhtadi, A. Program Study of Civil Engineering Engineering Faculty Narotama University Indonesia Program Study of Civil Engineering Engineering Faculty Widya Kartika University Indonesia

Gejayan intersection is located in Sleman Regency of Yogyakarta. Fly Over will be constructed at the intersection in the ring road of Yogyakarta. The nearest intersection to the east is Gejayan Intersection with a distance of 1573.11 meters. Gejayan intersection performance in 2018 has reached saturation by having Level of Service E. The more severe conditions will occur in the next 10-20 years. If it is planned using Fly Over on the ring road in Yogyakarta connecting Gejayan intersection, the vehicles flow must have other alternative by road widening. The most important step is to predict the Vehicle Operating Costs (VOC). After the Fly Over operation, VOC can be calculated to determine the cost saving. The scenario to predict VOC was 80% of vehicle volume would pass the Fly Over, and the 20% would still use the existing road. The results showed that the cost saving of Vehicle Operating Costs (VOC) of the existing road compared to the fly over use in 2019 was IDR 37,941,324,952. In 2039 the saving would be IDR 240,232,694,488. If the road was only widened, the cost saving of VOC in 2019 would be IDR 9,084,204923 and in 2039 would be IDR 72,107,188,198. © Published under licence by IOP Publishing Ltd.

关键词： Operating costs

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Identification of high safety risks in box girder bridge construction to develop a safety plan for elevated railway projects

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AIP Conference Proceedings 2023年第1期2877卷

作者： Pungky Dharma Saputra Luxpetrus Agustian Suhandi Idi Namara Nina Purwanti Muhammad Hamzah Fansuri Anasya Arsita Laksmi Military Building Construction Engineering Study Program Faculty of Military Engineering Indonesia Defense University Bogor Indonesia Civil Engineering Study Program School of Engineering & Technology Tanri Abeng University Jakarta Indonesia Department of Civil Engineering Faculty of Engineering Universitas Indonesia Depok Indonesia

Indonesia is active in infrastructure development, especially the railway infrastructure. Currently, there are a lot of elevated railway construction projects and there are many construction accidents in elevated construction. Different construction methods in elevated construction lead to different safety risks. Therefore, it is necessary to identify safety risks, especially high risks. The main objective of this research is to identify high safety risks in box girder construction on elevated railway projects. This research was designed in 3 main stages, starting from risk identification, expert validation, and risk assessment survey. The main variable is the safety risk in box girder construction with launching gantry, heavy shoring, and cast in situ method. The project reviewed is the Double Track (DDT) Railway Project in Jakarta. The result of the analysis shows that there were some high safety risks in box girder construction with launching gantry method, heavy shoring method, and cast in situ method i.e. traffic accident, hit by heavy equipment, fall from a height, struck down by material, wire hanger broke, formwork collapse, heavy shoring collapse, heavy equipment overturned and collapsed and struck down by box girder. The result of this research can be a determinant in the development of good construction safety planning for the next elevated railway project.

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An analysis of the damage level and reconstruction priority of elementary school buildings in the Central Lombok District

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AIP Conference Proceedings 2023年第1期2706卷

作者： Hariyadi Saifullah Akmaluddin Department of Civil Engineering Faculty of Engineering University of Mataram 83115 Indonesia Master Student of Civil Engineering Study Program Faculty of Engineering University of Mataram 83115 Indonesia

In Central Lombok District, the allocation of funds for the rehabilitation of elementary schools is very small compared to the number of schools that need reconstruction. The percentage of classroom rehabilitation work based on the target schools only reached 9.96%. Consequently, it needs to study to analyze the damage level of buildings and find out the most influenced criteria in formulating decisions for selecting school priorities that must be rehabilitated. Due to controlled aspects and standards are quite a lot and more sophisticated, accordingly the Analytical Hierarchy Process (AHP) method is the proper method for solving these complex problems. The sample in this study was 13 of the 25 schools that received special funds in 2018. The application of the AHP method was preceded by a survey involving experts who were competent in their fields. The results showed that the number of schools with moderate damage was six and severely damaged as many as seven schools. At the same time, based on the order of priority, building repairs are determined by the most influential criteria, namely the level of damage and primary education data.

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Land management in fisherman’s settlement as slum control, in Tanah Laut Regency, South Kalimantan

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AIP Conference Proceedings 2024年第1期3077卷

作者： Ghestiar Kharisma Kusumo Agung Witjaksono Maria C. Endarwarti Urban and Regional Planning Study Program Faculty of Civil Engineering and Planning National Institute of Technology (ITN) Malang Malang Indonesia

The problem of slum settlements is something that happens a lot in big cities around the world, slums are certainly one of the causes of an unhealthy environment, especially what happens in most parts of Indonesia. One of them is in Tabaniao Village, Tanah Laut Regency, South Kalimantan Province. According to the Decree of the Regent of Tanah Laut No. 188.45/***/2020 concerning the Determination of Slum Areas in Tanah Laut Regency, it is stated that Tabanio Village is included in the determination of slum areas. There are three methods carried out in this study, namely using descriptive data analysis methods to determine the characteristics of slum settlements, the second using the scoring analysis method to determine the level of slums and the third method uses descriptive analysis with land capability analysis to formulate land management analysis, where from the analysis characteristics and level of slums can formulate suitable land management for use in the research area. Based on the results of the analysis carried out there are 4 RTs that have the characteristics of building quality slums, environmental drainage slums, clean water service slums, waste management slums and fire protection slums, while in the study area the slum level is divided into two, namely moderate slum level and mild slum level, where RT 04 is included in the moderate slum level and for RT 07, RT 08, RT 09, and RT 10 it is included in the mild slum level, for land management used in the research area, namely land readjustment for RT 04, relocation is also implemented in RT 04 because there are 7 housing units that are located along the river and do not have clarity over the rights to the land they occupy, while for RT 07 and RT 08 they also use land readjustments for land management guidelines, for the concept of handling slums, namely building rehabilitation, adding new SPAM units, new PSP development and the construction of simple fire protection while for RT 09 and RT 10 the land m

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Improvement of clay gradation using black-beach sand

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AIP Conference Proceedings 2024年第1期2838卷

作者： Qunik Wiqoyah Diah Kusumaningrum Maulina Junephin Natalie Nurul Hidayati Civil Engineering Study Program Universitas Muhammadiyah Surakarta Ahmad Yani Street No.157 Pabelan Kartasura Sukoharjo Jawa Tengah Indonesia Civil Engineering Master Study Program Universitas Muhammadiyah Surakarta Ahmad Yani Street No.157 Pabelan Kartasura Sukoharjo Jawa Tengah Indonesia

Stabilization is one method of improving soil that does not meet development requirements. This method is used to enhance the technical properties of the soil so that it can fulfill particular technical specifications. Due to the low bearing capacity of clay soil, this study was conducted to increase soil gradation using black-beach sand by adding 0%, 5%, 10%, 15%, and 20% clay to the soil. Water content and specific gravity tests were performed on black-beach sand, as well as physical (water content, specific gravity, Atterberg limits, and soil grain analysis) and mechanical properties (compaction and shear strength) testing on clay soils. The black-beach sand test resulted in a water content of 2.51% and a specific gravity of 2.676. The results of the physical properties test on clay showed a decrease in the water content, specific gravity, liquid limit, plasticity index, and percentage of passing No. 200, but an increase in the plastic limit and shrinkage limit values. Clay is classified as A-7-5 by AASHTO and as CH by the USCS. The optimal water content value decreased as the maximum dry soil volume increased. The original soil shear strength test resulted in a value of 0.863 kg/cm2, a cohesion value of 0.557 kg/cm2, and an internal friction angle of 11.08°. The internal friction angle increases with the addition of black-beach sand, but the cohesiveness value decreases. Stabilization with black-beach sand can increase the gradation and bearing capacity of the soil.

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SPH modelling of tsunami wave impact on low-rise structures

SPH modelling of tsunami wave impact on low-rise structures

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2020 Virtual International Conference on Coastal engineering, vICCE 2020

作者： Pringgana, Gede Cunningham, Lee S. Rogers, Benedict D. Civil Engineering Study Program Faculty of Engineering Udayana University Jalan Kampus Bukit Jimbaran Badung80361 Indonesia Department of Mechanical Aerospace and Civil Engineering The University of Manchester ManchesterM13 9PL United Kingdom

This study examines the influence of low-rise structure orientations on tsunami-induced impact force. The particular focus is on low-rise structures since these often make up the majority of building stock in tsunami prone areas and are usually most vulnerable. The meshless method smoothed particle hydrodynamics (SPH) is used for simulating the tsunami flow. Multiple cube structures named A, B and C were arranged at different angles of rotation and were situated on a flat shore. Four cases were simulated with variation on the number of structures and orientation toward the tsunami direction. Case 1 comprises a single structure (SS) C without rotation (R=0°) and used as the baseline, Case 2 contains multiple structures (MS) A, B and C without rotation (R=0°), Case 3 includes multiple structures (MS) A, B and C with 30° rotation (R=30°), and Case 4 consist of multiple structures (MS) A, B and C with 45° rotation (R=45°). The simulations show that for a 2-solitary wave train the front structures generated a flow focusing effect that accelerated the bore velocity. The orientation of the multiple structures to the direction of the oncoming tsunami bore significantly affected the magnitude of the applied force, where the most effective structure orientation is provided by the 45-degree rotation. The results of this study emphasize the potential for improving tsunami resilience through appropriate positioning of structures. Importantly, such large reductions in force may provide an economic solution to building resilience in developing countries prone to tsunamis. © 2020 American Society of civil Engineers (ASCE). All rights reserved.

关键词： Tsunamis

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Durability test method of hot mix asphalt: A review

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AIP Conference Proceedings 2024年第1期2838卷

作者： Sri Sunarjono Zulfadli Zikri Mumfaz Nurul Hidayati Senja Rum Harnaeni Civil Engineering Master Study Program Universitas Muhammadiyah Surakarta Ahmad Yani Street No.157 Pabelan Kartasura Sukoharjo Jawa Tengah Indonesia Civil Engineering Study Program Universitas Muhammadiyah Surakarta Ahmad Yani Street No.157 Pabelan Kartasura Sukoharjo Jawa Tengah Indonesia

This research is focused on selecting a hot asphalt mixture test method for water and temperature applied in Indonesia. The study was carried out based on the literature study of various tests that existed so far. The search results are known to the existing test method are Immersion Compression, Original Lottman, Modified Lottman, Root-Tunnicliff, Duriez, Hamburg Wheel Tracking Device, Saturation Ageing Tensile Stiffness, Highways, Indonesian National Standard (SNI), Moisture Induced Stress Tester (MIST), and Boil Test. Based on the investigation, it can be inferred that water and temperature are contributing factors to the formation of a hot asphalt mixture, as the adhesion and cohesion connections are damaged. Adhesion damage is identified using a soaking and emphasizing procedure, whereas cohesion damage is identified by modeling vehicle stresses on the sample to be examined. Apart from the potential for damage to the asphalt mixed bond, the technique selection procedure is influenced by the test duration, mechanical evaluation, climate compatibility, and tool availability. The selection process begins with making a scoring scale for each parameter, then scoring each test method, and finally adding up the scores of the five parameters. The factors can be categorized into five categories, except duration and climate adaptability. Only two types of damage are classified based on their influence on adhesion or the combination of adhesion and cohesion. The mechanical evaluation contains only three grading categories: 1, 3, and 5, with no point for tool availability. The testing process can take as little as one day or as long as four days. Based on the results of the sum of the scores for each method, it can be seen that SNI 6753-2015 is the most appropriate asphalt durability test technique for usage in Indonesia, scoring 22 points overall, followed by MIST (21 points) and Bina Marga (20 points).

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Campus parking II characteristics analysis at Toraja Christian University in Indonesia

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AIP Conference Proceedings 2023年第1期2736卷

作者： Parea Rusan Rangan Ermitha Ambun Rombe Yulieanti Mapaliey Yohans Sunarno Gersony Miri Zain Patongloan Zwengly Lodi Honta Jufri Manga Juliah Bumbungan Nober Palelleng Civil Engineering Study Program Faculty of Engineering Universitas Kristen Indonesia Toraja Tana Toraja South Sulawesi Indonesia

The need for parking space would grow in tandem with the number of students, employees, and lecturers, particularly at the Indonesian Christian University Toraja’s Campus II, but owing to poor parking management, vehicles parked in the approved parking area may have problems. Students who use irregular parking areas, which occurs because the parking lot or unit that has not been created only provides a parking area, the second problem is parking alley lanes that are not per the needs, the alley is still very narrow and does not have this free space, which causes problems for vehicles going in and out of the campus II of the Indonesian Christian University Toraja. The parking characteristics method was used to examine this data; nevertheless, the parking characteristics method is still broken down into various sections, including parking accumulation, parking volume, parking index, number of parking users, and parking availability. Parking accumulation to determine the maximum accumulation during the research period, parking volume to determine the volume of parking capacity to determine whether the parking area can still accommodate vehicles or not, and parking index to determine the percentage of comparison between total vehicles at a given time interval and the volume of available parking spaces. The availability of parking is determined by the number of parking cells available in one area or parking lot each hour, whereas the level of parking usage is determined by the number of parking users that occur in one parking plot per hour. The analysis found that the parking area and basement on campus II of the Indonesian Christian University Toraja have 1151 parking space units (SRP) for two-wheelers and 28 SRP for fourwheelers, with a maximum number of parking vehicles for two-wheeled vehicles of 893 units with a parking index of 77, 59 percent and maximum parking of 21 units for four-wheeled vehicles with a parking index of 75 percent, indicating that the parking ar

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The comparison of Brackish water treatment using local filter materials and reverse osmosis filters

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AIP Conference Proceedings 2023年第1期2691卷

作者： Surya Hermawan Angela Jasmine Tanya Tjahyana Peni Tiewanto Ivan Richardian Limantara Ivan Reynaldi Limantara Kiki Prio Utomo Nelly Wahyuni Civil Engineering Department Petra Christian University Surabaya 60236 Indonesia Environmental Engineering Study Program Tanjungpura University Pontianak 78124 Indonesia Chemical Engineering Study Program Tanjungpura University Pontianak 78214 Indonesia

Water is an important resource in human life. The Indonesian Central Bureau of Statistics in 2020 noted that it has access to clean water up to 90.21%. However, these data show that there has not been equal access to clean water in Indonesia. Therefore, this research focuses on the area of Tegal Sari Hamlet, Kupang Village, Jabon District, Sidoarjo Regency, East Java Province, where the area has problems with brackish well water. The purpose of this underway research is to find a comparison that occurs in brackish water treatment when using a filter made of local material with a Reverse Osmosis (RO) device from the market. This research used an experimental method, to determine the effect of treatment on the test object. The treatment that is carried out is by flowing water through the filter from local material / RO to make the water meet the existing standards of pH, TDS, and EC. The outcomes demonstrate that the comparison using local materials and RO according to pH, meet the requirement. Then, concerning TDS and EC measurements is reducing 51.5% and 91.9%, as well as a decrease of 52.16% and 91.3%. respectively. This research is still underway condition, the appropriate local material and suitable method are key for successful research in the future. Thus it can be suggested that in carrying out brackish water treatment can be used an RO device instead of using a local material filter considering the results obtained.

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The effect of sea water soak on asphalt porous characteristics with and without waste of rubber tire waste as an asphalt addictive 2

The effect of sea water soak on asphalt porous characteristi...

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2nd International Conference on Green civil and Environmental engineering, GCEE 2019

作者： Mawarni, O.S.T. Fauziah, M. Civil Engineering Study Program Faculty of Civil Engineering and Planning Universitas Islam Indonesia

The use of rubber tire scraded in the developement of porous asphalt technology as a part of flexible pavement aims to minimize the adverse effects of transportation facilities. The use of rubber tire scraded as an asphalt modifier in the pavement can provide several benefits, including reducing reflective cracking on overlays, reducing maintenance cost, increaseing resistance to new pavement cracking and rutting, increasing skid resistance an pavement age. This paper presents laboratory investigation on the effect of seawater immersion on porous asphalt performance using rubber tire scraded. Method use in laboratory investigation is based on AAPA 2004 and Bina Marga 2010. The results showed the permeability all types of mixture indicator "moderate drainage". The results of testing the Marshall characteristics showed a decrease in the value of stability, flow, and MQ in the porous asphalt mixture with Pen 60/70 asphalt and rubber asphalt as the duration of sea water immersion increased. The porous asphalt mixture using Pen 60/70 asphalt and rubber asphalt has Index of Retained Strength values which tend to decrease with increasing sea water immersion duration. Indirect Tensile Stength test results due to seawater submersion indicate a decrease in ITS value in porous asphalt mixtures with Pen 60/70 asphalt and rubber asphalt. The Cantabro test results showed an increase along with the increasing duration of seawater immersion. © Published under licence by IOP Publishing Ltd.

关键词： Tires

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