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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 537 Documents
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Energy use Efficiency on High Rise Hotel Building to Reduce Carbon Emission Using Sefaira Satriopratomo, Dhimas F.; Devia, Yatnanta Padma; Susanti, Lilya
ASTONJADRO Vol. 13 No. 1 (2024): ASTONJADRO
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/astonjadro.v13i1.14591

Abstract

A lot of energy consumed by large hotel buildings can affect the environment degradation in a long period of time. Every building plan, including hotels must consider an integrated balance in utilizing existing and limited resources based on low CO2 emissions. Excessive use of energy has a negative impact which increasing the amount of CO2 emissions. This research aims to determine the effect of energy efficiency to provide recommendations, which require significant reduction of energy and environmental degradation by minimizing energy use and CO2 emission. The method that used in this research are modelling, and simulate the energy use intensity and carbon emission using Sefaira as a Sketchup Software plug-in by simulating the existing design and provide a recommendation. The object that being used in this research is a hotel building that have 11 floor and 1 basement in Yogyakarta, Indonesia. The result shows EUI of existing hotel building is 977 kWh/m2/year and carbon emission 1.872.042 kgCO2e/year. Comparing to the EUI standard which at the limit of 290–400 kWh/m2/yr. It is recommended to build additional window at the dismantled room area on north and south side of the hotel’s corridor. The recommended design, provides a reduction of EUI into 744,22 kWh/m2/year (31,28%). Meanwhile the carbon emission reduced into 1.467.072 kgCO2e/year (27,60%) from the existing design.
Modeling Study of Interaction between Fluid Flow and Pipe Wall Formed in Piping Erosion Phenomenon with SPH Method Suntarto, Rut Puspaningtyas; Sjah, Jessica; Rika, R.R. Dwinanti; Bahsan, Erly
ASTONJADRO Vol. 13 No. 1 (2024): ASTONJADRO
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

This study observes the interaction between fluid flow and the solid particles using Smoothed Particle Hydrodynamics (SPH) as a numerical approach with DualSPHysics platform and the flow assumed as a laminar flow with Re of 25, 50, and 100. As an approach study of internal piping erosion phenomenon, there are two types of pipes simulated, pipe with smooth wall and rough wall with different geometry and height of roughness. The geometry of roughness simulated are semi – circular ribs, triangular ribs, and rectangular ribs. The evaluated output of this research is the friction coefficient and velocity distribution occurring. In the case of flow through smooth wall, it is found that the increase of Reynolds number causes the decrease of friction coefficient. The next case of flow through rough walls shows that the height and shape of roughness affect the friction coefficient and velocity contour of the flow.
Energy Audit for Energy Efficiency and Cost on Hospital Buildings Putri, Mangesti Carissa; Devia, Yatnanta Padma; Susanti, Lilya
ASTONJADRO Vol. 13 No. 1 (2024): ASTONJADRO
Publisher : Universitas Ibn Khaldun Bogor

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Abstract

Hospitals are social facilities that operate publicly for 24 hours/day. The energy consumption of hospital buildings is among the highest, compared to commercial and residential buildings. Energy efficiency can be achieved after implementing a process called energy auditing and planning. The purpose of this study is to determine the EUI (Energy Use Intensity) of electricity for energy and cost savings, without reducing the productivity and comfort of the occupants. The method used in this research is the calculation of the EUI of the entire equipment, comparison of calculating the existing EUI with the Standard, simulation of existing conditions, redesign, modeling and simulation analysis of redesign results, calculation of EUI after redesign and calculation of energy costs before and after redesign. The results of this study obtained the EUI value in the air-conditioned room on the 1st floor of 15.14 kWh/m2/month included in the category Sufficient efficient from previously Wasteful, 2nd floor of 7.53 kWh/m2/month included in the category Fully Efficient and 3rd floor of 7.97 kWh/m2/month included in the category Fully Efficient. As for the non-AC room, the 1st floor of 2.27 kWh/m2/month is included in the Fully Efficient category, the 2nd floor of 2.50 kWh/m2/month is included in the Fully Efficient category from the previous Efficient, and the 3rd floor of 2.50 kWh/m2/month is included in the Fully Efficient category from the previous Efficient. Meanwhile, the calculation of energy costs after design recommendations was obtained at IDR 976.219.477,27 decreased by 21.56%.
Analysis Value Engineering at Work Apartment Building Wall Salsabila, Arna; Setyowulan, Desy; Arifi, Eva
ASTONJADRO Vol. 13 No. 1 (2024): ASTONJADRO
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/astonjadro.v13i1.14713

Abstract

It was Optimizing resources to analyze cost efficiency in implementing construction projects. One method that can be used for resource optimization is value engineering (VE). Value engineering (VE) as a management technique to determine the efficiency between the cost and performance of a product or project and stay on appearance, quality and maintenance. Then value engineering is applied to the construction of apartment buildings to get cost efficiencies from the initial budget planning. This study aims to determine the effectiveness of value engineering in the construction of apartment buildings, especially in-wall installations. The VE method consists of five stages: Information stage, the creativity stage, the analysis stage, the development stage, and the presentation stage. Information stage, data collection in the form of cost planning, detail engineering design, work plan and terms. Based on the data obtained, the total contract value for the apartment building is Rp. 87,328,000,000. wall installation as one of the highest cost contributors. There are two alternative recommendations, namely sandwich panel walls and precast walls. The analysis found that the sandwich panel wall has the most efficient value, namely the total RAB value of 2.5% from the initial plan.
Analysis of Factors Affecting the Cost Performance of Road Improvement Work in Serang Regency Gusbian, Tri; Amin, Mawardi
ASTONJADRO Vol. 13 No. 1 (2024): ASTONJADRO
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/astonjadro.v13i1.14732

Abstract

The Road Infrastructure Development Acceleration Program that has been launched by the Serang Regency Government in the 2017 fiscal year to the 2021 fiscal year, In the implementation of road improvement work in Serang Regency, a working length of 100 kilometers per year has been set for 5 budget years starting from the 2017-2021 fiscal year, the implementation of road improvement work in Serang Regency until the end of 2021 the remaining 20 kilometers due to changes in road length and increase in the volume of work in the field. This study analyzes the factors of additional costs incurred on road improvement work in Serang Regency by identifying the factors causing the cost increase from the largest to smallest factors data collection methods through questionnaires and interviews addressed to contractor personnel with validity, reliability and correlation tests used for data processing, while descriptive analysis is used for data analysis using Jeffreys Amazing Statistics Program (JASP) version 0.16.2 and Relative Importance Index (RII) are expected with this method to determine the factors causing additional costs in road improvement work. The highest level factor was identified as causing the additional cost of implementing Serang Regency road improvement work, namely Volume Changes (Technical Factors) with an RII index value of 0.715.
The Role of Local Communities in Overcoming River Pollution in Peliatan Village Pradnyani, Ida Ayu Eka; Sueca, Ngakan Putu; Prajnawrdhi, Tri Anggraini
ASTONJADRO Vol. 13 No. 1 (2024): ASTONJADRO
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/astonjadro.v13i1.14765

Abstract

Environmental pollution is a common problem that often affects an area. One of them is river pollution. River pollution also occurred in Peliatan Village. The condition of one of the rivers, namely the Mas River, was once used as a landfill or TPA. The role of the community in helping to overcome pollution problems is an initial step that can become a foundation in overcoming river pollution problems in Peliatan Village. In Bali, the existence of community groups is still closely felt, especially in overcoming and finding a problem. Local community groups have a major role in providing aspirations for the progress of their own region. The theory of community empowerment and community based development is the theoretical basis for implementing this research activity. The quality of the riverside space is measured from the indicators of the quality of the waterfront space according to Sutrisno (1997) and is presented descriptively. Research using qualitative methods with case studies and using observation and interview techniques. This method is used to be able to understand and discover phenomena in the field in depth. The results of the study showed that the condition of the river before handling river pollution was that its banks were filled with garbage and made into a landfill. The condition of the river afterwards is that the river becomes clean, orderly and made more attractive with the addition of wall carvings and sculptures. The reappearance of the bad debt tradition and visits from outside the area to Peliatan Village. The role of the community as the dominant role and in collaboration with the Service Village and Traditional Village. Contributions from local communities both in terms of ideas, ideas and material as an important capital in overcoming problems in their own area. This capital will be very useful for development in villages or cities.
Evaluation of the Existing Conditions of Tinobu Port, Lasolo District, North Konawe Regency, Southeast Sulawesi Province Usman, Rizki; Chaerul, Muhammad; Anugrah, Anugrah
ASTONJADRO Vol. 13 No. 1 (2024): ASTONJADRO
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/astonjadro.v13i1.14769

Abstract

The research location is located in Tinobu Village, Lasolo District, North Konawe Regency, which is a developing area and is known for its abundant natural wealth. Tinobu Port existed before Indonesia's independence, where Tinobu Port is tens of years old and has become an icon on the coast of North Konawe Regency, especially in Tinobu Village. Tinobu Port does not have any main facilities or supporting facilities that can facilitate activities at the port. Tinobu Port is widely used by local fishermen for loading and unloading of fish to be sold around the North Konawe Regency area and some are even sold as far as the city of Kendari. development after development has been carried out by the surrounding community as well as assistance from the local government so that at this time Tinobu Port already has a causeway with a length of approximately 400 (four hundred) meters, but due to the age factor, the condition of the causeway has also suffered a lot of damage. The purpose of this study was to evaluate the Existing Conditions of Tinobu Port, Lasolo District, North Konawe Regency in the form of several surveys conducted directly at the research location for future development purposes.
Potential Supervision Consultant Contract Disputes Due to Extension of Contractor Time in DKI Jakarta Regional Government Project Based on Fidic White Book Nuranto, Adi
ASTONJADRO Vol. 13 No. 1 (2024): ASTONJADRO
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/astonjadro.v13i1.14772

Abstract

DKI Jakarta is a province in Indonesia that has the most significant regional budget (APBD). This has led to numerous infrastructure development projects funded by the regional budget in Jakarta. Most projects in Jakarta follow a traditional document tendering process, where procurement starts with the engagement of planning consultants to design a project. After the planning documents are completed, contractor and supervision consultant services are procured concurrently. This research aims to identify the factors that result in non-extension and non-payment of supervising consultants and to determine the potential dominant disputes in supervising consultant contracts due to contractor time extension addendums, particularly in projects within the regional government environment of DKI Jakarta. The aim is to minimize the impact of such issues in the future. This research is a combined study with a sequential form. The population of this research consists of building construction projects in the province of DKI Jakarta. The sample for this research is a sports arena construction project. The respondents in this study are the project owners and the supervising consultants associated with the research project. The data will be processed using a rating evaluation method, allowing for the relative comparison of the predetermined variable categories with each other. The provisions should be based on fairness between the contracting parties. The research findings indicate that supervising consultants are entitled to time extensions and additional fees for supervision during the extended period, due to the contractor's extension of the physical implementation time based on technical considerations. The feasibility of the extension proposal is assessed through research, and the results are documented in an addendum to the contract.
Utilization of Asset Management in Infrastructure Development in Denpasar City Bagus Kanaka Kusuma, Ida; Ketut Agusintadewi, Ni
ASTONJADRO Vol. 13 No. 2 (2024): ASTONJADRO
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/astonjadro.v13i2.14792

Abstract

Important infrastructure development is carried out to improve the welfare of the people in Denpasar City in various factors. It is necessary to carry out strategic asset planning in infrastructure development so that utilization is appropriate, directed and efficient. The presentation of the results of the analysis of this research data was carried out qualitatively due to research on objects with adjustments to the conditions of events in the present. The results of this study describe that strategic planning of assets in Denpasar City is carried out starting from the stages of identifying assets, evaluating asset conditions, determining needs, strategic planning, setting policy standards, and preparing budgets. These stages are carried out so that infrastructure is built in accordance with the feasibility and needs required for certain communities and organizations.
Management of Slums in the Kotaku Program with Sustainable Urban Governance in Batam City Murtiono, Hendro; Gunawan, IGN Anom; Rinoa, Livvy
ASTONJADRO Vol. 13 No. 2 (2024): ASTONJADRO
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/astonjadro.v13i2.14824

Abstract

The impact of urbanization is closely related to urban settlement problems. One of the government's efforts to solve the problem of housing needs for low-income people in densely populated urban areas is to build vertical housing or flats. The City Without Slums Program (KOTAKU) is one of the strategic efforts of the Directorate General of Cipta Karya, Ministry of Public Works and Public Housing (PUPR) to accelerate the handling of slums in urban areas and support the "100-0-100 Movement", namely 100 percent access to proper drinking water, 0 percent slums, and 100 percent access to proper sanitation. One of the efforts made by the Indonesian government in dealing with slum settlements is the implementation of the Cities Without Slums (KOTAKU) program. This study uses a qualitative research method that aims to understand the phenomenon of what is experienced by research subjects holistically. The results of the study show that from an economic perspective, the KOTAKU program is very well received by the community in the kelurahan environment, because the program includes a capital budget program for the surrounding community. Then in terms of environmental aspects, the KOTAKU program is here to provide solutions for the environment with road repair and drainage cleaning programs. Finally, from the social aspect, the KOTAKU program also has a positive impact on social relations in the urban village environment.

Page 33 of 54 | Total Record : 537

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