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Astonjadro
Published by Universitas Ibn Khaldun Bogor
ISSN : 23024240     EISSN : 26552086     DOI : http://dx.doi.org/10.32832/astonjadro
Core Subject : Engineering,
Civil Engineering, Building, Construction & Architecture
Astonjadro: Jurnal Rekayasa Sipil adalah jurnal ilmiah dibidang teknik sipil p-ISSN : 2302-4240 dan e-ISSN : 2655-2086. Jurnal Rekayasa Sipil Astonjadro diterbitkan untuk mengapresiasi dan memberikan informasi ilmiah bagi peneliti, dosen serta para profesional. termasuk dalamnya pengembangan model dan konsep penelitian yang mengacu secara berkesinambungan. Jurnal Astonjadro diterbitkan oleh Fakultas Teknik dan Sains Universitas Ibn Khaldun Bogor, terbit dua kali dalam satu tahun yaitu bulan Juni dan Desember.
Arjuna Subject : Teknik (semua kategori) - Teknik Sipil dan Struktur
Articles 507 Documents
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Development of the South Java Coastal Crossroads (Case Study of the Legundi-Planjan Road Section, Gunungkidul Regency, Special Region of Yogyakarta Province) Puspito, Bambang Anjar
ASTONJADRO Vol. 14 No. 4 (2025): ASTONJADRO
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/astonjadro.v14i4.18945

Abstract

The performance of the Legundi – Planjan (LOT-4) road, Gunungkidul Regency, Yogyakarta Special Region Province, is a study conducted in one of the sections on the Southern Java Cross Coastal Line (PANSELA). The purpose of the research is to conduct: Traffic Volume Counting, Traffic Time Speed Calculations, Potential Analysis and discussion of Tourism and Fisheries, Vehicle Operating Cost Calculations, Value of Travel Calculations Travel Time Saving), Accident Cost Calculation.The research method is carried out with the stages of a Traffic Volume Enumeration Survey to determine the amount of traffic volume that passes through the location of the observation point manually according to the grouping of vehicle types within a certain time period. This survey was conducted by counting the number of motorized vehicles by vehicle type group in a period of 15 minutes for 16 hours, to determine the characteristics of traffic flow. Travel speed survey is to obtain information on the average travel speed of vehicles that pass certain roads at predetermined locations, the survey is carried out using the moving observer method. The data obtained is used to calculate vehicle operating costs classified into fixed costs (fixed costs) and variable costs (variable costs). Fixed costs are costs that must be paid even if the vehicle is not used, the amount is constant. While the variable costs of using the vehicle according to need. Calculations as developed by the Japanese PCI Consultants (Pacific Consultants Indonesia). The Travel time value observes an increase in travel speed and shorter roads, an increased time value means a travel time savings. Calculation of the cost of motor vehicle accidents is divided into: Accidents that cause fatalities, injuries without casualties and property damage. By comparing the calculation of accident costs with the upper control limit and upper control limit to determine the accident-prone area (black side). The results obtained are (Traffic Counting = 615 smp/hour). , (Travel Time Speed=38.36 km/hour), (Vehicle Operating Cost, Passenger Car=Rp.4.837,26; Truck=Rp.6.037.81; Bus=Rp.9.322.38), (Value of Travel Time Saving= for an average speed of 38.36km/hour=Rp.100.10 ), (Equivalent Accident Number=EAN in Panggang sub-district in 2018=198 above the Upper Control limit /UCL=164 and BKA(Upper Control Limit=197).
Microstructure of Asphalt Mixtures Using Empty Palm Oil Bunch Waste as Filler Based on Road Engineering Association of Malaysia (Ream) Specifications Muslika, Muslika; Gusty, Sri; Chaerul, Muhammad
ASTONJADRO Vol. 14 No. 4 (2025): ASTONJADRO
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/astonjadro.v14i4.18946

Abstract

Performance of Hollow Asphalt Mixtures Using Empty Palm Oil Bunches Waste Based on Road Engineering Association of Malaysia (Ream) Specifications. One of the road pavement technologies currently being developed is porous asphalt. One of the materials used in flexible pavement mixtures is filler, one of which is ash. stone, which is in limited supply and relatively expensive. One alternative solution is to use empty oil palm fruit bunches. waste as an alternative material in the asphalt mixture. The aim of this research is what is the microstructure of asphalt mixtures that use empty oil palm fruit bunches as filler. This research uses the specifications of the Road Engineering Association of Malaysia (REAM, 2008). From the results of the research carried out, it can be concluded that the use of stone ash filler from empty palm fruit fruit bunches in hollow asphalt mixtures with variations of 2.5%, 5% and 7.5% shows that the granules are dense with voids that cover each other with varying sizes. This is in line with the stability value obtained from the Marshall test. Which has increased due to interlocking of interlocking grains. Meanwhile, from the EDS test results on the composition of chemical elements, it is known that the element contained in the hollow asphalt sample mixed with ash from burning empty oil palm fruit bunches with the highest compound composition is the element Boron at 66.55%, which is different from the chemical composition test for burning ash from bunch waste. The highest compound composition based on atomic percentage is Potassium (K) at 31.6%.
The Effect of Using Iron Ore Sediment Waste as a Substitute for Fine Aggregate on Concrete Characteristics Idrus, Muhammad; Gusty, Sri; Chaerul, Muhammad
ASTONJADRO Vol. 14 No. 4 (2025): ASTONJADRO
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/astonjadro.v14i4.18963

Abstract

Concrete is the main material in infrastructure development throughout the world. Its high mechanical strength and durability make it the main choice in various construction applications, from roads to high-rise buildings. However, behind its benefits, concrete production also triggers serious environmental problems. Natural aggregates such as river sand are used on a large scale. One of the materials that can be used as a substitute for fine aggregate is iron ore sediment waste. This study aimed to analyze the characteristics of fresh concrete using iron ore sediment waste as a substitute for fine aggregate using experimental methods. This study aimed to analyze the characteristics of fresh concrete using iron ore sediment waste as a substitute for fine aggregate using experimental methods. From the results of testing iron ore sediment waste aggregates such as the characteristics of iron ore sediment waste aggregates, 71% met the requirements as a material for making concrete, except for the mud content and organic content so special treatment is needed, namely the iron ore sediment waste material must be washed clean before use. The characteristics of iron ore sediment waste concrete have requirements from the average slump test value of 9 cm and there is no segregation and bleeding in the fresh concrete mixture.
The Ratio of Live Load to Dead Load on I-Girder Prestressed Concrete Bridges Using Theoretical and Numerical Analysis Sanjaya, Rudi; Aminullah, Akhmad; Suhendro, Bambang
ASTONJADRO Vol. 14 No. 4 (2025): ASTONJADRO
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/astonjadro.v14i4.19037

Abstract

Bridges are essential connectors between regions separated by geographical barriers, facilitating transport across national, provincial, and district roads. In Indonesia, the prestressed I-girder concrete bridge (PCI-Girder) is a widely used design, particularly for spans between 20 and 45 meters. These bridges are a common choice in toll road development projects, part of the national strategic plan to promote regional equity and support economic growth. Seismic loads influence the PCI-Girder bridge superstructure less, allowing consistent design practices concerning cross-sectional dimensions and concrete quality relative to span length. However, girder profiles and spacing variations have become prominent in Indonesia, significantly impacting load distribution and bridge performance. This study examines the effects of live load relative to dead load on PCI-Girder bridges with girder spacing variations of 1850 mm, 2100 mm, and 2450 mm for spans ranging from 20 to 45 meters, based on SNI 1725-2016 standards. Using theoretical calculations in Microsoft Excel and numerical analysis with Midas Civil software, the study highlights the influence of girder spacing on effective area, strand requirements, camber, and beam stress post-tensioning. The findings indicate that increased girder spacing enhances the effective area of composite sections but requires larger strand areas and higher concrete strength. Moment analysis reveals that for spans over 20 meters, dead load moments dominate live load moments, whereas for 20-meter spans, live load moments are more significant. As span length increases, the influence of dead loads becomes more prominent. The 2450 mm spacing variant also shows higher live-to-dead load moment and shear force ratios than other configurations, providing insights for optimizing PCI-Girder bridge designs.
Risk Analysis of Steel Railway Bridges Based on Rating Factor, Earthquake, and Importance Factor Prasetyo, Aulia Azis; Triwiyono, Andreas; Supriyadi, Bambang
ASTONJADRO Vol. 14 No. 4 (2025): ASTONJADRO
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/astonjadro.v14i4.19038

Abstract

Railway bridges are critical infrastructure components that are essential to support and maintain the integrity of major rail transportation networks. Indonesia is located in a tectonic zone known as the Ring of Fire. Risk assessment of these bridges is critical. This research not only considers the physical condition or vulnerability of the bridge itself but also the risk posed by earthquakes and the level of importance of the bridge. The research was conducted on 4 bridges located in East Java Province, namely the BH-129, BH-262, BH-275, and BH-314 Bridges. The rating factor, hazard level, and importance factor influence the risk level. The assessment process starts by using the Bridge Management System (BMS) method and Structure Analysis Program (SAP2000) to assist in calculating the Rating factor. Determining the level of danger by referring to the Earthquake Hazards Map and the Indonesian Earthquake Code (SNI 2833: 2016), The importance is taken based on the level of operational importance of the bridge referring to the same standard. The results show that the four bridges have the same risk value of 0.7809 for each bridge. The results underscore the urgent need for proactive measures to reduce the potential adverse impacts of bridge structure failure. Recommended interventions include strengthening structural elements, increasing inspection frequency, improving maintenance protocols, and, if necessary, replacing compromised structures. These strategies are critical due to the high risk and significant impact on rail safety and operations, especially in areas prone to natural disasters. The results of this study reinforce the urgency of improving the resilience of bridge infrastructure to earthquake threats to maintain the stability and safety of rail transportation in Indonesia.
Thermal Comfort Level Analysis to Support Energy Efficiency Based on Building Information Modeling (BIM) (Case Study of Fajar University Postgraduate Building) Wahyuningsih, Sri; Gusty, Sri; Chaerul, Muhammad
ASTONJADRO Vol. 14 No. 4 (2025): ASTONJADRO
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/astonjadro.v14i4.19052

Abstract

Indonesia faces significant challenges regarding energy consumption in the building sector, which continues to rise alongside urbanization and economic growth. Energy use in commercial buildings, particularly office and educational facilities, significantly contributes to the national total energy consumption, with HVAC (Heating, Ventilation, and Air Conditioning) systems being a major component of building energy consumption. By modeling HVAC systems, natural lighting, and thermal insulation, Building Information Modeling (BIM) can help optimize energy usage and reduce operational costs in buildings. However, despite the proven benefits of BIM in energy analysis and thermal comfort, challenges remain in its implementation. Many construction projects still rely on traditional methods that are less effective in integrating data and analysis. Additionally, a lack of understanding about BIM usage among construction professionals also hinders the achievement of optimal energy efficiency.
Balancing Tradition and Innovation: Energy-Efficient Hospitality Architecture in Bali's Growing Tourism Landscape Putra, I Wayan Yogik Adnyana; Adhika, I Made; Dwijendra, Ngakan Ketut Acwin; Putra, I Dewa Gede Agung Diasana
ASTONJADRO Vol. 14 No. 4 (2025): ASTONJADRO
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/astonjadro.v14i4.19076

Abstract

Balinese hospitality architecture faces the challenge of integrating traditional Balinese design principles with modern energy-efficient technology while maintaining cultural authenticity. The study explores combining Balinese architectural heritage and contemporary innovations to achieve sustainability in the hospitality industry. Through a study of Tri Hita Karana-based spatial planning, passive cooling techniques, and the adoption of renewable energy, this study investigates how traditional elements such as bales, hogs, and open yards can be adapted to meet contemporary energy efficiency standards. Case studies of eco-friendly resorts, green hotels, and heritage-inspired developments illustrate how sustainable materials, climate-responsive clever design, and local energy solutions contribute to reducing the carbon footprint while maintaining the island's architectural identity. The findings highlight that blending vernacular wisdom with modern engineering solutions fosters resilience to climate change and improves the visitor experience. The study proposes a contextual model for sustainable hospitality architecture, offering practical guidelines for architects, developers, and policymakers that aim to align cultural preservation and environmental sustainability in the urbanization landscape.
Analysis of the Use of Palm Shells as a Substitute for Fine Aggregate on the Water Absorption of Concrete Iswady, Iswady; Gusty, Sri; Chaerul, Muhammad
ASTONJADRO Vol. 14 No. 4 (2025): ASTONJADRO
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/astonjadro.v14i4.19091

Abstract

Concrete, as one of the main elements in construction, has received special attention and is commonly used in infrastructure development in various countries in the world. High-quality concrete is increasingly needed along with the increasing need for infrastructure, such as towers, high-rise buildings, and long-span bridges. This type of concrete is made with a low amount of FAS; FAS or water-to-cementitious ratio is the ratio of the total weight of water to the total weight of cement in the concrete mixture. The purpose of this study is to analyze the water absorption of concrete using palm shells as a substitute for fine aggregate using an experimental method by curing. From the results of testing palm shells such as the water absorption value which is directly proportional to the increasing percentage of CKS use as a substitute for fine aggregate, it show that the use of CKS as a substitute for fine aggregate in normal concrete increases the water absorption of concrete, the higher the percentage of palm shell substitution, the higher the percentage of absorption value obtained.
Energy Efficiency and Aesthetics in Bamboo Architecture Based on Balinese Local Wisdom Sastrawan, I Wayan Wirya; Adhika, I Made; Dwijendra, Ngakan Ketut Acwin; Yudantini, Ni Made
ASTONJADRO Vol. 14 No. 4 (2025): ASTONJADRO
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/astonjadro.v14i4.19092

Abstract

Bamboo has been recognized as a sustainable building material with high tensile strength, rapid growth, and a low carbon footprint. In Bali, traditional architecture reflects cultural values and local wisdom that prioritizes spatial harmony, natural ventilation, and symbolic ornaments. This research explores how passive design strategies can optimize energy efficiency in bamboo-based architecture while maintaining traditional Balinese elements' aesthetic integrity. By integrating the principles of Tri Hita Karana and Asta Kosala Kosali, this study uses Building Information Modeling (BIM) simulation methods, community perception surveys, and energy efficiency analysis to evaluate the sustainability and resilience of a bamboo-based architectural culture. The study results show that applying Balinese spatial configuration in bamboo construction improves natural ventilation, reduces energy consumption, and maintains cultural identity. The study provides a framework for integrating traditional Balinese architectural principles with sustainable modern design, thus maintaining cultural continuity in the face of contemporary architectural demands.
Integration of Cultural and Ecological Aspects in the Selection of Sustainable Materials for Traditional Balinese Architecture Utami, Ni Wayan Ardiarani; Adhika, I Made; Dwijendra, Ngakan Ketut Acwin; Putra, I Dewa Gede Agung Diasana
ASTONJADRO Vol. 14 No. 4 (2025): ASTONJADRO
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/astonjadro.v14i4.19093

Abstract

Traditional Balinese architecture has a deep cultural value that is reflected in the use of locally-based materials that are in harmony with the philosophy of Tri Hita Karana and the principles of Asta Kosala Kosali. However, in the era of modernization, there has been a shift in the use of materials from local to industrial materials that are more accessible but have a higher environmental impact. This article examines the integration of cultural and ecological aspects in selecting sustainable materials for traditional Balinese architecture using a multi-criteria approach. The research method used is multi-criteria decision analysis (MCDA) and life cycle assessment (LCA) to compare sustainability parameters such as carbon footprint, material resilience, and local community involvement in the material production process. The study results show that the use of local materials such as bamboo, coconut wood, and natural stone has a higher sustainability value than industrial materials. This study offers policy-based solutions to improve the use of environmentally friendly materials while maintaining Balinese cultural values. This study is expected to be the basis for designing sustainable architecture policies that consider ecological and cultural aspects in a balanced manner.

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