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All Journal Media Teknik Sipil RACIC : Rab Construction Research RADIAL: JuRnal PerADaban SaIns RekAyasan dan TeknoLogi JATI EMAS (Jurnal Aplikasi Teknik dan Pengabdian Masyarakat) Jurnal Komposit : Jurnal Ilmu-Ilmu Teknik Sipil Rekayasa: Jurnal Teknik Sipil Dharma: Jurnal Pengabdian Masyarakat Composite: Journal of Civil Engineering Journal of Civil Engineering and Vocational Education RADIAL: Jurnal Peradaban Sains, Rekayasa dan Teknologi
Zetta Rasullia Kamandang
Universitas Pembangunan Nasional “Veteran” Jawa Timur, Indonesia.
Humanities Civil Engineering, Building, Construction & Architecture Education Electrical & Electronics Engineering Engineering Environmental Science Mechanical Engineering Public Health Social Sciences Transportation Other

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Comparison of Additional Working Hours and Additional Labor Based on the Output Value of Construction Projects Nuriardani, Gati; Kamandang, Zetta Rasullia
CIVED Vol. 10 No. 3 (2023): September 2023
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/cived.v10i3.18

Abstract

Quality, time, and cost are three important elements in the project and are interrelated where in its implementation problems can arise that are very likely to occur. One of them is delay. This delay problem also occurs in the Hospital Building Construction Project. In order to find a solution to the problem, this research uses two stages of analysis, namely Earned Value Analysis and Project Crashing on delays experienced by the project in week 17. The results of calculations using the Earned Value Analysis method obtained the value of Schedule Variance (SV) -Rp 146,450,657.32; Schedule Performance Index (SPI) 0.6688; Estimate Temporary Schedule (ETS) 48 weeks; and Estimate All Schedule (EAS) 65 weeks. So, the project that is planned to be completed in 49 weeks is predicted to experience a delay of 16 weeks. Furthermore, scheduling adjustments and analysis of the series of activities carried out with the help of Microsoft Project to determine the critical path. Project Crashing in this study was carried out by comparing two alternatives, namely by adding 4 hours of work (overtime) and increasing the workforce by 30%. Both alternatives can reduce the duration of work for 26 days. The cost required from the acceleration alternative by adding overtime hours is IDR 30,850,351,655.73 with an efficiency of -0.6%. For the alternative of additional labor requires a cost of Rp 30,572,882,563.04 with an efficiency of 0.3%.
ANALISIS KOEFISIEN PRODUKTIVITAS PEKERJA PADA PEKERJAAN ARSITEKTUR PROYEK PEMBANGUNAN GEDUNG BERTINGKAT Firmansyah, Muhammad Yusuf; Kamandang, Zetta Rasullia
RADIAL : Jurnal Peradaban Sains, Rekayasa dan Teknologi Vol. 11 No. 1 (2023): RADIAL: JuRnal PerADaban SaIns RekAyasan dan TeknoLogi
Publisher : Universitas Bina Taruna Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37971/radial.v11i1.379

Abstract

Abstrak: Analisis Koefisien Produktivitas Pekerja Pada Pekerjaan Arsitektur Proyek Pembangunan Gedung Bertingkat. Proses pelaksanaan pekerjaan konstruksi memiliki kemungkinan keterlambatan yang diakibatkan oleh berbagai faktor kendala yang dapat menghambat pekerjaan yang ada di lapangan. Keterlambatan dalam durasi penyelesaian proyek akan memperngaruhi biaya yang diperlukan dalam penyelesaian sebuah proyek konstruksi. Produktivitas yang merupakan perbandingan antara hasil pekerjaan yang dilakukan dengan sumber daya tersedia yang digunakan menjadi salah satu faktor yang dapat mempengaruhi durasi dan biaya sebuah proyek konstruksi. Apabila produktivitas rendah maka proyek memiliki kemungkinan mengalami keterlambatan dari jadwal, namun apabila produktivitas memiliki nilai yang tinggi maka proyek dapat diselesaikan lebih awal dari jadwal yang ada. Koefisien produktivitas dalam pekerjaan konstruksi di Indonesia yang menjadi standar koefisien produktivitas tenaga kerja dapat ditemukan dalam Permen PUPR No.1 Tahun 2022. Hasil analisis yang didapatkan dari observasi produktivitas tenaga kerja yang dilakukan di lapangan menunjukkan nilai rata-rata koefisien produktivitas pekerjaan arsitektur pada pembangunan gedung 13 lantai di Kota Surabaya untuk pekerjaan bata merah, bata ringan, plesteran, dan acian memiliki nilai yang lebih kecil dibandingkkan dengan standar koefisien yang terdapat pada Peraturan Menteri Pekerjaan Umum dan Perumahan Rakyat No.28 Tahun 2022, nilai koefisien tersebut menunjukan bahwa produktivitas pekerja yang terdapat di lapangan memiliki nilai yang lebih tinggi. Dari analisis yang dilakukan didapatkan hasil bahwa bahwa koefisien di lapangan menunjukkan hasil yang lebih optimal jika dibandingkan dengan koefisien Permen PUPR No.1 Tahun 2022. Kata kunci: Koefisien; Produktivitas; Proyek. Abstract: Analysis Of Worker Productivity Coefficient In Architectural Work In Rising Building Projects. The process of carrying out construction work has the possibility of delays caused by various constraining factors that can hinder existing work in the field. Delays in the duration of project completion will affect the costs required to complete a construction project. Productivity, which is a comparison between the results of the work done and the available resources used, is one of the factors that can affect the duration and cost of a construction project. If productivity is low then the project has the possibility of experiencing a delay from the schedule, but if productivity has a high value then the project can be completed earlier than the existing schedule. The productivity coefficient in construction work in Indonesia, which is the standard for the coefficient of labor productivity, can be found in the PUPR Ministerial Regulation No. 1 of 2022. The results of the analysis obtained from observations of labor productivity carried out in the field show that the average value of the productivity coefficient for architectural work in building construction of 13-storey building in Surabaya for red brickwork, lightweight brick, plastering, and plastering has a smaller value compared to the standard coefficient contained in the Regulation of the Minister of Public Works and Public Housing No. 28 of 2022, the coefficient value This shows that the productivity of workers in the field has a higher value. From the analysis carried out, it was found that the coefficients in the field showed more optimal results when compared to the coefficients of the PUPR Ministerial Decree No.1 of 2022. Keyword: Coefficient; Productivity; Project
ANALISIS KEBUTUHAN TENAGA KERJA MENGGUNAKAN METODE RESOURCES LEVELING PADA PEKERJAAN STRUKTUR BAWAH GEDUNG BERTINGKAT Listiani, Titin; Kamandang, Zetta Rasullia
RADIAL : Jurnal Peradaban Sains, Rekayasa dan Teknologi Vol. 11 No. 1 (2023): RADIAL: JuRnal PerADaban SaIns RekAyasan dan TeknoLogi
Publisher : Universitas Bina Taruna Gorontalo

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

Abstract

Abstrak: Analisis Kebutuhan Tenaga Kerja Menggunakan Metode Resources Leveling Pada Pekerjaan Struktur Bawah Gedung Bertingkat. Proyek konstruksi merupakan suatu kegiatan yang dilakukan dengan tujuan tertentu dan dibatasi oleh satuan waktu. Dalam pelaksanaannya setiap proyek konstruksi memiliki rencana penjadwalan yang harus diikuti. Keberhasilan rencana penjadwalan dipengaruhi oleh sumber daya, waktu, dan biaya. Pada umumnya kontraktor cenderung fokus pada optimalisasi waktu dan biaya, sehingga tidak jarang mengesampingkan sumber daya yang diperlukan, terutama dalam hal tenaga kerja. Dimana sumber daya tenaga kerja yang mengalami fluktuasi atau alokasinya tidak rata dapat menjadi penghambat dalam penyelesaian proyek. Berdasarkan hal tersebut, Resources Leveling menjadi penting dilakukan sebagai upaya untuk mengalokasikan pembagian tenaga kerja. Dari hasil analisis diketahui bahwa jumlah pekerja yang dibutuhkan untuk setiap pekerjaan bervariasi bergantung pada besarnya bobot pekerjaan, koefisien pekerja, serta durasi pelaksanaannya. Hasil penelitian menunjukkan bahwa pekerja yang digunakan dalam proyek mengalami overallocated resources atau tenaga kerja yang dibutuhkan melebihi tenaga kerja yang tersedia. Analisis Resources Leveling menjadikan manajemen tenaga kerja tersusun secara optimal. Resources Leveling membantu pelaksana untuk lebih memberdayakan pekerja yang ada sesuai dengan kebutuhan di lapangan. Selain itu, metode ini juga dapat memprediksi waktu penyelesaian proyek sehingga memudahkan pelaksana untuk membuat beberapa pilihan sebelum memutuskan pemerataan mana yang terbaik. Sebagai contoh pada tanggal 6 september kebutuhan pekerja sebelum leveling adalah 131 orang, setelah dilakukan leveling kebutuhan pekerja menjadi 70 orang. Hal tersebut menunjukkan bahwa terjadi disparitas atau selisih sebesar -87,14%. Lebih lanjut, perubahan alokasi tenaga kerja tersebut mengakibatkan adanya pergeseran waktu mulai pekerjaan, sehingga durasi total proyek yang seharusnya selesai dalam 76 hari berubah menjadi 88 hari atau lebih lambat 12 hari. Kata kunci: Proyek; Tenaga Kerja; Perataan Sumber daya; Resources Leveling; Overallocated Resources. Abstract: Analysis of Manpower Needs Using the Resources Leveling Method in the Work of the Lower Structure of Multi-storey Buildings. A construction project is an activity carried out with a specific purpose and is limited by a unit of time. In practice, every construction project has a scheduling plan that must be followed. The success of the scheduling plan is influenced by resources, time, and costs. In general, contractors tend to focus on optimizing time and costs, so it is not uncommon for them to neglect the resources needed, especially in terms of manpower. Where labor resources fluctuate or their allocation is uneven can become an obstacle in project completion. Based on this, Resources Leveling becomes important as an effort to allocate the division of labor. From the results of the analysis it is known that the number of workers needed for each job varies depending on the size of the work weight, the worker coefficient, and the duration of the implementation. The results of the study show that the workers used in the project experience overallocated resources or the required workforce exceeds the available workforce. Resources Leveling analysis makes workforce management optimally structured. Resources Leveling helps executors to better empower existing workers according to the needs in the field. In addition, this method can also predict project completion time, making it easier for implementers to make several choices before deciding which distribution is the best. For example, on September 6, the need for workers before leveling was 131 people, after leveling, the need for workers was 70 people. This shows that there is a disparity or difference of -87.14%. Furthermore, the change in labor allocation resulted in a shift in the start time of work, so that the total duration of the project which should have been completed in 76 days changed to 88 days or 12 days slower. Keyword: Project; Labor; Resource Alignment; Resources Leveling; Overallocated Resources.
ANALISIS FAKTOR SEBAGAI DAMPAK PANDEMI COVID-19 PADA PROYEK BENDUNGAN BENDO PONOROGO Sari, Isonamia Indah; Kamandang, Zetta Rasullia; Nauli, Anna Rumintan
RADIAL : Jurnal Peradaban Sains, Rekayasa dan Teknologi Vol. 11 No. 1 (2023): RADIAL: JuRnal PerADaban SaIns RekAyasan dan TeknoLogi
Publisher : Universitas Bina Taruna Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37971/radial.v11i1.391

Abstract

Abstrak: Analisis Faktor Sebagai Dampak Pandemi Covid-19 Pada Proyek Bendungan Bendo, Ponorogo. Penelitian ini bertujuan menganalisis dampak covid -19 pada proyek bendungan bendo Ponorogo dengan menggunakan metode principle component analysis (PCA), dimulai dengan penyusunan dan penyebaran kuesioner kepada 50 responden pekerja pada proyek bendungan bendo Ponorogo untuk kemudian di analisis principle component analysis (PCA). Berdasarkan hasil ranking analisis faktor terdapat 5 faktor dampak pandemi Covid-19 yang mempengaruhi proyek Bendungan Bendo, Ponorogo yaitu : adanya perubahan jam kerja, proyek terbengkalai karena PSBB, adanya pengurangan tenaga kerja, sulitnya transportasi bagi pekerja dan tukang ke lokasi proyek, dan keterlambatan pembayaran upah pekerja.Selanjutnya, faktor yang berpengaruh dominan terhadap proyek Bendungan Bendo, Ponorogo adalah adanya perubahan jam kerja dengan nilai loading factor sebesar 0,838. Kesimpulan yang diperoleh analisis faktor terbentuk 6 faktor dampak pandemi Covid-19 yang mempengaruhi proyek Bendungan Bendo, Ponorogo yaitu faktor 1 dinamakan faktor internal, faktor 2 dinamakan faktor ketidakpastian proyek, faktor 3 dinamakan faktor pembatasan wilayah (PSBB), faktor 4 dinamakan faktor sosial, faktor 5 dinamakan faktor proses order tertunda, dan faktor 6 dinamakan faktor komunikasi. Faktor internal merupakan faktor dampak Covid-19 yang dominan mempengaruhi proyek Bendungan Bendo, Ponorogo dengan eigenvalues comulative sebesar 43,705%. Kata Kunci: Pandemi Covid-19; Proyek Bendungan Abstract: Factor Analysis As Impact Of The Covid-19 Pandemic On Bendo Dam Ponorogo Projects: This study aims to analyze the impact of covid -19 on the Ponorogo bendo dam project using the principle component analysis (PCA) method, starting with compiling and distributing questionnaires to 50 worker respondents at the Ponorogo bendo dam project to then analyze principle component analysis (PCA). Based on the results of the factor analysis ranking, there are 5 factors impacting the Covid-19 pandemic that affected the Bendo Dam project, Ponorogo, namely: changes in working hours, abandoned projects due to PSBB, reduction in workforce, difficulty in transportation for workers and builders to the project site, and delays in payment workers' wages. Furthermore, the factor that has a dominant influence on the Bendo Dam project, Ponorogo is a change in working hours with a loading factor value of 0.838. The conclusions obtained from factor analysis formed 6 factors impacting the Covid-19 pandemic that affected the Bendo Dam project, Ponorogo, namely factor 1 called internal factors, factor 2 called project uncertainty factor, factor 3 called area restriction factor (PSBB), factor 4 called social factors, factor 5 is called pending order process factor, and factor 6 is called communication factor. Internal factors are the impact factors of Covid-19 which dominantly affect the Bendo Dam project, Ponorogo with a cumulative eigenvalue of 43.705%. Keywords: Covid-19 Pandemic; Dam Project
MATERIAL REQUIREMENT PLANNING BERDASARKAN HASIL RESOURCE LEVELING PADA PROYEK KONSTRUKSI JALAN TOL Bayudhana, Zachary Dewa; Kamandang, Zetta Rasullia
RADIAL : Jurnal Peradaban Sains, Rekayasa dan Teknologi Vol. 11 No. 1 (2023): RADIAL: JuRnal PerADaban SaIns RekAyasan dan TeknoLogi
Publisher : Universitas Bina Taruna Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37971/radial.v11i1.392

Abstract

Abstrak: Material Requirement Planning Berdasarkan Hasil Resource Leveling Pada Proyek Konstruksi Jalan Tol. Indonesia sebagai salah satu negara berkembang terus berusaha untuk meningkatkan aktivitas ekonomi nasional dengan pembangunan infrastruktur. Salah satu sektor infrastruktur yang sedang dalam proses pembangunan adalah Proyek Jalan Tol Solo – Yogyakarta – NYIA Kulon Progo. Proyek tersebut merupakan proyek konstruksi jalan tol sepanjang 96+57 Km, yang terbentang dari Solo hingga NYIA Kulon Progo. Pada tahap perencanaan proyek, ditemui beberapa kendala dalam hal pengalokasian sumber daya. Kendala tersebut berupa terjadinya fluktuasi yang diakibatkan oleh pengelolaan alokasi sumber daya manusia yang kurang merata dan pengadaan material proyek yang tidak dapat memenuhi permintaan, dimana hal tersebut dapat diminimalisir dengan menerapkan metode resource leveling dan Material Requirement Planning (MRP). Analisis perencanaan pengalokasian sumber daya tenaga kerja menghasilkan total durasi proyek selama 21 minggu, dengan puncak penggunaan tenga kerja pekerja sebanyak 179 pekerja/hari. Jumlah tersebut tidak sesuai dengan kondisi ideal, dimana jumlah maksimal pekerja yang tersedia hanya 85 pekerja/hari. Metode resource leveling digunakan sebagai solusi untuk masalah tersebut dengan hasil total durasi proyek bertambah menjadi 29 minggu dan penggunaan tenaga kerja dibawah 85 pekerja/hari. Selanjutnya, untuk memenuhi kebutuhan permintaan material digunakan metode Material Requirement Planning (MRP) dengan teknik Economic Order Quantity (EOQ) dan Lot for Lot (LFL). Total biaya MRP dengan metode EOQ sebesar RP 61.019.254.085. Sedangkan, total biaya MRP dengan Teknik LFL sebesar Rp 59.269.052.290. Sehingga Material Requirement Planning dengan menggunakan metode LFL lebih ekonomis dibandingkan dengan metode EOQ. Kata Kunci: Proyek Konstruksi, Jalan Tol, Resource leveling, Material Requirement Planning, Economic Order Quantity, Lot for Lot. Abstract: Material Requirement Planning Based on Resource Leveling Results in Toll Road Construction Projects. Indonesia as a developing country continues to strive to increase national economic activity through infrastructure development. One of the infrastructure sectors currently under construction is the Solo – Yogyakarta – NYIA Kulon Progo Toll Road Project. The project is a 96+57 Km toll road construction project, which stretches from Solo to NYIA Kulon Progo. At the project planning stage, several obstacles were encountered in terms of allocating resources. These constraints are in the form of fluctuations caused by the management of the allocation of human resources that are uneven and the procurement of project materials that cannot meet requests, which can be minimized by applying the resource leveling method and Material Requirement Planning (MRP). The planning analysis of the allocation of labor resources resulted in a total project duration of 21 weeks, with a peak use of 179 workers/day. This number is not in accordance with ideal conditions, where the maximum number of workers available is only 85 workers/day. The resource leveling method was used as a solution to this problem with the result that the total duration of the project increased to 29 weeks and the use of labor was below 85 workers/day. Furthermore, to meet the needs of material requests, the Material Requirement Planning (MRP) method is used with the Economic Order Quantity (EOQ) and Lot for Lot (LFL) techniques. The total cost of MRP using the EOQ method is IDR 61,019,254,085. Meanwhile, the total cost of MRP using the LFL technique is IDR 59,269,052,290. So that Material Requirement Planning using the LFL method is more economical than the EOQ method. Keywords: Construction Projects, Toll Roads, Resource leveling, Material Requirement Planning, Economic Order Quantity, Lot for Lot.
ANALISIS METODE NILAI HASIL (EARNED VALUE) MENGGUNAKAN SIMULASI MONTE CARLO UNTUK MONITORING PROYEK PEMBANGUNAN JALAN Kamila Salsabila Iman; Zetta Rasullia Kamandang
Racic : Rab Construction Research Vol. 9 No. 2 (2024): DESEMBER
Publisher : LPPM Universitas Abdurrab

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36341/racic.v9i2.4253

Abstract

Project performance is assessed based on schedule, cost, and quality. Time and cost measurements must be carried out regularly to identify if there is a discrepancy with the plan. In the XYZ road construction project in East Java Province, a deviation of 20.707% was found in the 19th week, so it is necessary to analyze the concept of the value of results to determine the future development of the project. To analyze the spread of project uncertainty, Monte Carlo simulation is used by modeling the system with random numbers. The random number generated is the number between the minimum and maximum RAB for each type of work in the project. After repetition according to the number of iterations obtained with a relative error value of 2%. Then the frequency graph and normal distribution are analyzed, so it can be seen that the project must provide costs of Rp 11,031,591,805.11, Rp 16,742,117,603.03, and Rp 21,981,246,725.01 for performance evaluation at 50%, 75%, and 100% performance reviews. The SPI calculation result in week 19 is 0.409, indicating that the project is behind schedule. In addition, the TE calculation shows this project can be completed in 508 days or 73 weeks.
ANALISIS PERCEPATAN DURASI PENYELESAIAN PROYEK KONTRUKSI JALAN MENGGUNAKAN METODE TIME COST TRADE OFF DENGAN PENAMBAHAN JAM KERJA DAN JUMLAH ALAT BERAT Moh Salman Al farisi; Zetta Rasullia Kamandang
Racic : Rab Construction Research Vol. 9 No. 2 (2024): DESEMBER
Publisher : LPPM Universitas Abdurrab

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36341/racic.v9i2.4287

Abstract

Acceleration of the duration of project completion often occurs because it is influenced by several factors which cause the project to be completed before the specified time. The Time Cost Trade Off (TCTO) method is a time and cost comparison method used to shorten the implementation time of construction projects. The X arterial road project which is the case study in this research has completed 35.45% of the work with a percentage of delays that must be caught up at 5.3%. The acceleration analysis in this case study implements the TCTO method with alternative work hours (overtime) and heavy equipment on critical project work to obtain efficient results in terms of time and cost. As a result, it was found that normal labor costs and normal project duration for the remaining critical work were IDR. 802,650,747.00 with a remaining settlement duration of 89 days. Then after acceleration, we obtained an additional 4 hours of overtime work per day and additional heavy equipment with a labor cost of IDR. 278,314,091.00 which can shorten the duration by 56 days. So, based on the results of the analysis, the cost required to accelerate the X arterial road project is Rp. 1,080,964,838.39 with a completion time of 33 days.
Co-Authors Achmad Dzulfiqar Alfiansyah anggreini, riski ayu Aryaseta, Bagas Bayudhana, Zachary Dewa Firmansyah, Muhammad Yusuf Hendrata Wibisana Hilmi, Muhammad Agus Jyh-Bin Yang Kamila Salsabila Iman Listiani, Titin Lutfiana, Yanna Meiliana, Fabilla Razya Moh Salman Al farisi Muhammad Rusdi Nauli, Anna Rumintan Nia Dwi Puspitasari Noni Rahmadhini Nuriardani, Gati Sari, Isonamia Indah Sholeha, Suviatus Siti Zainab