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All Journal Jurnal Mahasiswa Jurusan Teknik Sipil Rekayasa Sipil Astonjadro Journal of International Conference Proceedings
Yatnanta Padma Devia
Departemen Teknik Sipil Fakultas Teknik Universitas Brawijaya
Humanities Civil Engineering, Building, Construction & Architecture Decision Sciences, Operations Research & Management Electrical & Electronics Engineering Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media

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Evaluation of Project Work in a Public Service Building in East Java Andhika Dwi Kurniawan; Arief Rachmansyah; Yatnanta Padma Devia
Rekayasa Sipil Vol. 17 No. 3 (2023): Rekayasa Sipil Vol. 17 No. 3
Publisher : Department of Civil Engineering, Faculty of Engineering, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.rekayasasipil.2023.017.03.1

Abstract

In the process of implementing a project, few people find projects that go according to plan. In general, there are projects that are behind schedule, both in terms of time and schedule, but there are also projects that experience acceleration from the originally planned schedule. Project delay is a problem that arises as a result of unplanned construction implementation. Damage to the state due to additional costs and delays is one of the impacts of project delays. The purpose of this research is to track project implementation, identify factors that cause delays, calculate the cost of delays that occur, find root causes and suggest alternative solutions that can be used to anticipate project delays. Monitoring and evaluating delays require an approach that includes the use of Microsoft Project Tracking, Fishbone Charts, and Root Cause Analysis. Alternative methods are used to track performance and analyze delays in public service building projects. The results showed a lack of understanding of human resources in terms of planning/evaluating existing plans, lack of training programs related to the field of work being handled, and poor schedule planning causing a lack of lightning rods, installation in the main building, lighting in changing rooms, grounding systems, central duct/airline, less power cables than needed and original water source using PAM water converted into deep pumping wells.
ANALISIS KELAIKAN TEKNIS DAN KELAYAKAN FINANSIAL PADA PROYEK GEDUNG KANTOR DI JAKARTA SELATAN Amanda Bernicha Nugroho; Yatnanta Padma Devia; Hendi Bowoputro
Jurnal Mahasiswa Jurusan Teknik Sipil Vol. 1 No. 3 (2023)
Publisher : Jurusan Teknik Sipil, Fakultas Teknik, Universitas Brawijaya

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Abstract

ABSTRAK Untuk mengetahui tingkat keberhasilan suatu investasi atau proyek pembangunan gedung, perlu dilakukan analisis kelayakan atau disebut juga feasibility study (FS). Analisis kelaikan teknis dilakukan untuk menganalisis apakah kondisi bangunan gedung tersebut telah memenuhi aspek-aspek keandalan gedung dan analisis kelayakan finansial dilakukan untuk mengetahui tingkat keberhasilan investasi pada pembangunan gedung tersebut. Tujuan dari penelitian ini untuk menganalisis kelaikan teknis dan kelayakan finansial pada gedung kantor, serta memberikan rekomendasi perbaikan pada komponen-komponen kelaikan teknis apabila masih belum sesuai dengan ketentuan yang berlaku. Dari segi teknis, dapat diketahui bahwa hampir seluruh aspek yang dianalisis sudah memenuhi ketentuan, namun untuk komponen kolom dan balok pada aspek Kondisi Struktur Bangunan Gedung, serta komponen Akses Petugas Pemadam Kebakaran ke Lingkungan dan Sistem Proteksi Pasif pada aspek Sistem Proteksi Pemadam Kebakaran masih belum sesuai dengan ketentuan yang sudah ditetapkan. Sedangkan untuk hasil analisis kelayakan finansial, proyek pembangunan gedung kantor di Jakarta Selatan ini telah layak secara finansial ditunjukkan dengan nilai NPV sebesar Rp 6.729.506.715,00 > 0; BCR sebesar 1,0072 ≥ 1; dan IRR sebesar 14,19% > 10,12% dari MARR. Dari hasil analisis diperoleh juga nilai payback period adalah 8 tahun. Kata kunci: Analisis Kelayakan, Kelaikan Teknis, Kelayakan Finansial
Importance Factor Analysis of Quality Assurance for Contractor Competitiveness Ashari Putri, Mega Dewi; Devia, Yatnanta Padma; Anwar, M. Ruslin
Rekayasa Sipil Vol. 18 No. 3 (2024): Rekayasa Sipil Vol. 18 No. 3
Publisher : Department of Civil Engineering, Faculty of Engineering, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.rekayasasipil.2024.018.03.14

Abstract

Population growth led to massive construction development, with increasing demand every year. One of those demands is housing construction. The high demand for this house has led to the emergence of new contractors on a local scale, with products and services of unstable quality. Hence, the contractors need to be more competitive in the industry. This research aims to identify and analyze the important factors influencing quality assurance (QA) and the competitiveness of local contractors in housing construction projects. The analysis is grounded in three primary frameworks: ISO 9001:2015 (Quality Management Systems), PMBOK 6th Edition (Project Management Body of Knowledge), and Ministry of Public Works and Public Housing Regulation No. 4 of 2009. The research design used statistical analysis, Relative Importance Index (RII), and Analytical Hierarchy Process (AHP) to identify key factors. Research findings indicate that leadership commitment, project resources, and quality documentation are the three most critical factors. Regardless of the identified critical factors, all factors contribute to a significant influence on successful performance. The proposed strategic approach involves sequentially improving the "quality of work output," followed by "customer retention" and "project cycle efficiency." These findings can serve as a guideline for contractors in making decisions to enhance their competitiveness.
Evaluation of Production Efficiency in Asphalt Mixing Plant Using Lean Concept Based on TIMWOOD Putra, Dio Adelian; Devia, Yatnanta Padma; Harimurti, Harimurti
Journal of International Conference Proceedings Vol 7, No 5 (2024): 2024 ICPM Bali Proceeding
Publisher : AIBPM Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32535/jicp.v7i5.3630

Abstract

This study aims to assess the effectiveness of the lean concept in improving production efficiency in an asphalt mixing plant. The research emphasizes the need to reduce waste by applying the TIMWOOD principles, which target minimizing transportation, inventory, motion, waiting, overproduction, overprocessing, and defects. By identifying and eliminating non-value-adding activities, this study seeks to enhance overall production efficiency and resource utilization. The findings reveal significant efficiency improvements, with a 50% reduction in average processing time and a 46.14% decrease in total processing time after implementing the lean concept. These results demonstrate that the lean approach enhances productivity by optimizing production time, reducing operational waste, and improving workflow efficiency. Furthermore, the research underscores the practical implications of adopting lean principles, suggesting they can be a sustainable strategy for asphalt plants to boost operational efficiency, decrease production costs, improve resource allocation, and strengthen competitiveness in the industry. This study provides actionable insights for industries aiming to implement lean manufacturing concepts effectively
Analysis of the Dominant Internal and External Factors in the Performance of Human Resources in the Precast Company Rachmawati, Dyah; Wijatmiko, Indradi; Devia, Yatnanta Padma
ASTONJADRO Vol. 12 No. 2 (2023): ASTONJADRO
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/astonjadro.v12i2.9089

Abstract

The performance of human resources (HR) in a company is one of the determinants of the company's condition in the industry. This can be analyzed based on the dominant factors that support or become the foundation of the company. This study reviews the dominant internal and external factors in PT.BEP company. The research method used is descriptive qualitative with analysis using IPA, Pareto Chart, IFAS-EFAS Matrix, and SWOT. The results showed that internal factors were dominated by ability factors with a processing value of 13.49%, while external factors were dominated by reward factors with a percentage of 16.42%. The results of the SWOT analysis recommend that the strategy that should be implemented is Strength-Opportunity (SO) with IFAS EFAS results in quadrant I with coordinates 1.67;2.34. then PT. BEP is in an advantageous situation because it has good strengths and opportunities and can be optimized by minimizing all weaknesses and threats.
Implementation of Circular Economy Principles in Building Construction Waste Khiyana, A'izzatul; Suharyanto, Agus; Devia, Yatnanta Padma
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.v13i1.14547

Abstract

Building projects often generate significant amounts of waste. This happens because the building projects mostly adopts a linear economic model of “take, make, dispose of”, using materials to the construction of buildings and disposing them at the end of life. This linear economic model only focuses on human activities because the disposal of materials ultimately does not become a sustainable practice in the future. For this reason, an alternative is needed in reducing and processing the construction waste by implementing circular economy principles. This study aims to identify type of construction waste in building project, provide recommendations for handling it with circular economy principles, and calculating the cost savings. The method that used in this study are field observation and interview for collecting data. The result showed that steel reinforcement, ready-mix concrete, light brick, ceramic, multiplex, spun pile, and anchor can be handled with circular economy principles are reduce, reuse, recycle, recovery, and repair. The cost savings from handled it in project A, B, and C are Rp. 68.252.490,65, Rp. 84.182.684,96, and Rp. 31.794.238,51, respectively.
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.
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

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

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%.
Co-Authors A'izzatul Khiyana Agus Suharyanto Agus Suharyanto Alwafi Pujiraharjo Amanda Bernicha Nugroho Andhika Dwi Kurniawan Anton Abdur Rahman Arief Rachmansyah Arief Rachmansyah Ashari Putri, Mega Dewi Cahyo Adhi P Dabi, Fransiska R Dwi Ratna Nur F. Faradina, Alifia Harimurti Harimurti Hendi Bowoputro Indradi Wijatmiko Lilya Susanti M. Ruslin Anwar Nadhila, Arifa Nurina Pudyono . Putra, Dio Adelian Putri, Mangesti Carissa RACHMAWATI, DYAH Rumatarai, Marthina Hermina Ruslin Anwar Saifoe El Unas Satriopratomo, Dhimas F. Ummah, Karimatul W. Nariswari Wisnumurti .