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All Journal Wahana Teknik Sipil: Jurnal Pengembangan Teknik Sipil Civil Engineering Journal Jurnal Riset Rekayasa Sipil Matriks Teknik Sipil Sustainable Civil Building Management and Engineering Journal
Handayani, Fajar Sri
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Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Engineering Environmental Science Materials Science & Nanotechnology Transportation

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IDENTIFIKASI INDIKATOR KINERJA UNTUK MENGUKUR KEBERHASILAN PADA PROYEK KONSTRUKSI JALAN BETON BERDASARKAN PERSPEKTIF PENYEDIA JASA KONSTRUKSI Safari, Athiah; Solikin, Mochamad; Sunarjono, Sri; Handayani, Fajar Sri; Harnaeni, Senja Rum
Wahana Teknik Sipil: Jurnal Pengembangan Teknik Sipil Vol. 29 No. 1 (2024): Wahana Teknik Sipil
Publisher : Politeknik Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32497/wahanats.v29i1.5648

Abstract

One of the infrastructures that society absolutely needs is roads. With the existence of roads, land transportation activities are carried out so that economic and social mobility runs normally. Concrete is one of the materials commonly used for road pavements, where this material technology has many advantages such as being able to withstand heavy vehicle loads and lower maintenance costs. To produce quality concrete roads, the role of the manager who leads the concrete road construction project is very decisive. To produce a quality concrete road, a manager must be able to determine indicators that influence its success, so that construction activities run effectively and efficiently. This study aims to identify Key Performance Indicators (KPIs) that can be used as a measure of success in concrete road construction projects based on the perspective of construction service providers. The analytical method used in this study is the Relative Importance Index to determine performance indicators that can be used as KPIs based on their relationship to success in concrete road construction projects. The results of the analysis show that the performance indicators that can affect the success of a concrete road construction project based on the perspective of a construction service provider are cost, quality, time, productivity, and environment, each of which has a weight of 21.41%, 19.44%, 19.05%, 15.65%, 12, 86% and 11.59%.
Volume and Cutting Optimization of Reinforcing Steel in Construction of a Satpol PP Building Project Putri, Quini Athaya; Handayani, Fajar Sri; Setiono, Setiono
Sustainable Civil Building Management and Engineering Journal Vol. 1 No. 3 (2024): July
Publisher : Indonesian Journal Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47134/scbmej.v1i3.2697

Abstract

The world of construction is very dependent on technology, especially in the era of the industrial revolution which demands efficiency and competitiveness. The use of BIM (Building Information Modeling) technology supported by Autodesk Revit software enables more effective and efficient project planning and implementation. One application of BIM is in planning reinforcing steel requirements. To overcome material waste which often occurs due to less than optimal cutting of reinforcing steel, material management with a bar bending schedule and the use of BIM is an important solution. In the Satpol PP Building Construction Project in Bantul Regency by PT Quinad Bahana Indonesia, this new method with software was applied to correct cutting of reinforcing steel, reduce waste and increase construction efficiency. This research method includes data collection, 3D BIM modeling, comparing work volume using Autodesk Revit and conventional. After getting the reinforcing steel volume from the Autodesk Revit software, continue by entering the volume data into the BIM to obtain optimal reinforcing steel cutting patterns. The research results show that the use of Autodesk Revit software for column and beam work results in an overall difference of 11%. The volume resulting from Revit quantity take-off is less than manual analysis. Based on waste level calculations, the average value of waste level is 0.97%. This proves that the BIM is effective in reducing material waste on construction projects. Apart from reducing material waste, the BIM is also able to optimize reinforcing steel cuts.
Comparative Analysis of Conventional Methods with BIM Methods on Construction Cost Estimate at Structure Project Design Calculations (Case Study of Construction of A Satpol PP Building) Ulinnuha, Nadira Zalfa; Handayani, Fajar Sri; Rifai, Muji
Sustainable Civil Building Management and Engineering Journal Vol. 1 No. 4 (2024): October
Publisher : Indonesian Journal Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47134/scbmej.v1i4.2698

Abstract

Construction cost estimate in construction projects requires high accuracy in calculating work volumes and applying unit cost analysis. Lack of accuracy in calculating the volume of work can result in inaccurate cost estimates, causing project budget overruns. This research discusses the use of 3D BIM planning concepts using Autodesk Revit software to help calculate volumes accurately, with the aim of reducing project budget overruns. Comparative analysis of cost estimates between the use of Autodesk Revit and conventional methods provides an overview of the efficiency and effectiveness of using BIM software in estimating construction project costs. The object of this research is the Satpol PP Bantul office construction project, with a focus on structural work. This research method includes data collection, 3D BIM modeling, calculating cost estimates based on the volume produced using unit cost analysis, and comparative analysis of cost estimates between the use of BIM software and conventional methods. Based on the research results, it found that the construction cost estimate for structural work from Revit had a value of IDR 862,330,518.59 and a difference of IDR 53,420,195.31. This shows that the use of the 3D BIM concept results in 5.83% cheaper calculations than conventional construction cost estimate methods.
Greenhouse Gas Emissions Analysis (Case Study: Construction of a Satpol PP Building) Wytti, Khalijah Herma; Handayani, Fajar Sri; Setiono, Setiono
Sustainable Civil Building Management and Engineering Journal Vol. 1 No. 4 (2024): October
Publisher : Indonesian Journal Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47134/scbmej.v1i4.2699

Abstract

The development of the construction world is driven by the demands of meeting various needs, such as in this case study, namely the construction of the Bantul satpol PP Building to meet the needs of the legal apparatus. However, according to the United Nations Environtment Program in the Global Status Report for Buildings and Construction (2021) states that this development has a significant environmental impact, construction projects are responsible for 36% of energy consumption and 37% global CO2 emissions by 2020. Therefore, this research aims of achieving Greenhouse Gas Emission (GHG) efficiency using the Life Cycle Assessment (LCA) method. Data analysis was applied through the Autodesk Revit program to get the material schedule and LCA approach within the scope of Cradle to Gate using ISO 14040 and 14044 guidelines. The structure of foundations, slabs, columns and beams became the object of research because the constituent materials in the form of concrete and steel are considered as CO2 GHG contributors with the largest percentage, reaching 75% of the total emissions released (Luo et al., 2016). The analysis results show that the largest GHG estimate is located in the structural work of the Cradle to Gate scope which reaches 1,657,880.04 KgCO2eq with the most critical process unit which is the material production process unit. Thus, project construction management can look for the best alternatives related to material selection or methods in the material production process that can reduce GHG emissions. This research can be applied to create a sustainable construction.
Analysis of Quantity Take Off Deviation Using BIM Method (Case Study of Construction of a Satpol PP Building) Fadlilah, Muhammad Reza Nur; Handayani, Fajar Sri; Rifai, Muji
Sustainable Civil Building Management and Engineering Journal Vol. 1 No. 3 (2024): July
Publisher : Indonesian Journal Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47134/scbmej.v1i3.2828

Abstract

Quantity Take Off (QTO) is in important process in the construction industry that calculates and estimates the amount of material needed to complete a construction project. This process includes detail analysis of design plans and technical specification to identify and calculate quantities. QTO results are used to create cost budgets, create project plans, and plan material procurement. This research explains the Building Information Modeling (BIM) application which uses Autodesk Revit software to calculate Quantity Take Off volume. The aim is to find out the difference between volume calculations using conventional methods and volume calculations using the BIM method and Quantity Take Off volumes in architectural work and structural work. A comparative analysis of conventional methods and the use of Autodesk Revit provide an overview of the efficiency and effectiveness of implementing BIM software in the Bantul Satpol PP Building Construction Project with a focus on structural an architectural work investigation studies. This research uses a case study methodology which includes a quantity survey using Building Information Modeling (BIM) techniques using Autodesk Revit and Microsoft Excel software. This research method includes preparatory steps, data collection techniques, 3D modeling, and data analysis based on volume the use of BIM software and conventional methods. Based on the survey results, the difference in volume calculations for architectural work is 9,68% and for structural work is 9,00%, this shows that volume calculations using the BIM method are smaller than using conventional methods.
Analisis Optimasi Waktu dan Biaya pada Proyek JDU SPAM Regional Wosusokas Segmen 3 dengan Metode Time Cost Trade Off menggunakan Software Primavera 6.0 Gunawan, Syahrul; Handayani, Fajar Sri; Setiono, Setiono
Sustainable Civil Building Management and Engineering Journal Vol. 1 No. 2 (2024): April
Publisher : Indonesian Journal Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47134/scbmej.v1i2.2977

Abstract

Dalam proyek konstruksi terdapat triple constrain yang wajib terpenuhi, yaitu waktu, biaya, dan mutu. Waktu yang optimal, biaya yang minim, dan mutu yang sesuai spesifikasi menjadi tolak ukur keberhasilan proyek. Akan tetapi, tidak menutup kemungkinan terdapat hambatan terhadap waktu dan biaya yang dapat membuat pelaksanaan proyek berjalan tidak sesuai dengan yang direncanakan. Untuk mengatasi hambatan tersebut metode Time Cost Trade Off dengan alternatif penambahan jam kerja dan tenaga kerja dapat digunakan untuk optimasi waktu dan biaya dengan proses crashing pada pekerjaan yang berada pada lintasan kritis. Analisis metode Time Cost Trade Off dibantu menggunakan software Primavera Project Planner 6.0 untuk memperoleh skenario yang paling ekonomis dari kedua alternatif tersebut. Hasil optimasi waktu dan biaya pada penelitian ini dengan menggunakan alternatif penambahan jam kerja didapat total waktu penyelesaian 485 hari, lebih cepat 49 hari dari waktu normal dengan total biaya proyek sebesar Rp.271.909.061.593 yang mengalami penurunan biaya sebesar Rp.837.176.360. Sedangkan, menggunakan alternatif penambahan tenaga kerja didapat total waktu penyelesaian 527 hari, lebih cepat 7 hari dari waktu normal dengan total biaya proyek sebesar Rp.272.598.399.413 yang mengalami penurunan biaya sebesar Rp.147.838.540. Oleh karena itu, optimasi waktu dan biaya dengan penambahan jam kerja lebih ekonomis.
Identifikasi Waste menggunakan Metode Borda dan Penerepan Lean Construction Tools dengan Root Cause Analysis (Studi Kasus: Proyek Pembangungan Gelanggang Inovasi dan Kreatif Universitas Gadjah Mada) Saputra, Ardymas Febrian; Rifai, Muji; Handayani, Fajar Sri
Sustainable Civil Building Management and Engineering Journal Vol. 1 No. 2 (2024): April
Publisher : Indonesian Journal Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47134/scbmej.v1i2.3001

Abstract

Dalam pembangunan bangunan sipil sering terjadi masalah, terutama karena adanya pemborosan dalam bentuk non-value added activity. Pemborosan ini dapat dipengaruhi oleh faktor-faktor seperti man, money, material, machine, method, dan minute. Untuk mengatasi masalah ini, diperlukan inovasi seperti penerapan manajemen Lean Construction yang bertujuan untuk menginvestigasi dan mengurangi pemborosan. Salah satu metode untuk mengidentifikasi pemborosan adalah dengan menggunakan Root Cause Analysis (RCA). Dalam penelitian kali ini akan berfokus untuk mengidentifikasi variabel serta faktor apa saja yang menjadi penyebab terjadinya waste berupa non-value added activity yang paling berpengaruh apabila terjadi pada Proyek Gelanggang Inovasi dan Kreatif UGM. Penelitian ini memiliki tujuan untuk melakukan identifikasi, analisis, dan memberikan rekomendasi dari waste yang terjadi dengan menggunakan pendekatan terhadap konsep Lean Construction. Penelitian ini menggunakan data berupa kuesioner yang diisi oleh pekerja terkait dan diolah dengan menggunakan metode borda. Dari analisis menggunakan metode tersebut akan didapatkan pembobotan dari masing-masing variabel serta faktor yang ada, selanjutnya hasil dari analisis tersebut akan digambarkan dalam bentuk grafik (pie chart) untuk mengetahui pemeringkatannya. Dari penelitian yang dilakukan mendapatkan hasil berupa variabel serta faktor yang paling berpengaruh yaitu Variabel Waste of Money (bobot 0,2009 atau 20,09%) dengan faktor yang paling mempengaruhinya yaitu “Terjadi Kesalahan Saat Perhitungan RAB” (bobot 0,2716 atau 27,16%).
Analisis Value Engineering Pada Proyek Pembangunan Gedung Dengan Metode Analytical Hierarchy Process (AHP) Shonata, Mutiara; Rifai, Muji; Handayani, Fajar Sri
Sustainable Civil Building Management and Engineering Journal Vol. 1 No. 3 (2024): July
Publisher : Indonesian Journal Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47134/scbmej.v1i3.3064

Abstract

Efisiensi sangat penting dalam proyek konstruksi untuk menghadapi beberapa tantangan yang dapat memengaruhi keberlangsungan dan kesuksesan proyek. Beberapa tantangan tersebut adalah keterbatasan anggaran, peningkatan biaya material, pemborosan sumber daya dan kekurangan tenaga kerja yang menunjukkan bahwa efisiensi bukan hanya tentang penghematan biaya tetapi juga tentang pengelolaan sumber daya secara cerdas untuk hasil yang optimal. Analisis Value Engineering (VE) dapat dilakukan untuk menghadapi tantangan-tantangan tersebut. Tujuan dari penelitian ini adalah untuk mengidentifikasi pekerjaan yang dapat dianalisis, memilih alternatif terbaik, dan menghitung perbandingan biaya sebelum dan setelah dianalisis. Penelitian ini dilakukan dengan Value Enginering Job Plan yaitu tahap informasi, tahap pengembangan ide, tahap analisis, tahap pengembangan, dan tahap rekomendasi. Pekerjaan yang akan dilakukan analisis dipilih berdasarkan diagram pareto dan nilai persentase yang tinggi. Alternatif yang diajukan pada penelitian ini adalah alternatif 1 berupa pelat half precast dengan balok dan kolom precast serta alternatif 2 berupa pelat half precast dengan balok dan kolom konvensional. Pemilihan alternatif dilakukan dengan pembobotan berdasarkan kriteria kualitatif dan kuantitatif. Kriteria kualitatif didapatkan dari hasil kuesioner yang dihitung menggunakan metode AHP. Hasil analisis menunjukkan alternatif 1 sebagai alternatif terpilih. Alternatif 1 dapat menghemat biaya sebesar Rp3.751.121.582,21 dengan persentase sebesar 3,39%. Total biaya proyek sebelum dilakukan analisis VE sebesar Rp110.594.037.401,37. Setelah dilakukan analisis VE, diperoleh total biaya proyek sebesar Rp106.842.915.819,16.
Penerapan Rekayasa Nilai dengan Metode Zero-One pada Pekerjaan Struktur Jembatan (Studi Kasus: Proyek Bridge and Road at East Access PT Indah Kiat Karawang) Setiyanti, Oktaviona Dwi; Rifa’i, Muji; Handayani, Fajar Sri
Sustainable Civil Building Management and Engineering Journal Vol. 1 No. 4 (2024): October
Publisher : Indonesian Journal Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47134/scbmej.v1i4.3110

Abstract

Dalam sebuah bangunan, elemen-elemen tertentu membutuhkan biaya yang lebih tinggi dibandingkan dengan elemen lainnya. Anggaran Biaya merupakan salah satu pendekatan untuk mendapatkan anggaran yang paling ekonomis dengan tetap mematuhi peraturan dan standar yang berlaku. Salah satu alternatif untuk mendapatkan anggaran yang paling ekonomis dengan tetap mematuhi peraturan dan standar yang berlaku adalah rekayasa nilai, yang melibatkan penghilangan biaya dan upaya yang tidak perlu atau tidak berkontribusi, sehingga mengurangi biaya proyek secara keseluruhan dengan tetap mempertahankan nilai dan kualitasnya. Penelitian ini menggunakan metode Rencana Kerja Rekayasa Nilai dimana pada tahap pengembangan digunakan metode zero-one dan menghasilkan penghematan sebesar Rp 15.776.963.332 atau sekitar 20% dari keseluruhan biaya proyek yang sebesar Rp 105.525.136.779, sehingga dihasilkan biaya proyek setelah dilakukan analisa value engineering sebesar Rp 89.748.173.447.
A Comparative Analysis of the CPM and PERT Methods in Project Time Management for a High-Rise Building Construction Project in Yogyakarta Santoso, Fazabella Wijaya; Handayani, Fajar Sri; Setiono
Sustainable Civil Building Management and Engineering Journal Vol. 2 No. 2 (2025): April
Publisher : Indonesian Journal Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47134/scbmej.v2i2.3927

Abstract

This study examines the comparison of PERT (Program Evaluation and Review Technique) and CPM (Critical Path Method) in time management for construction projects through a case study of a 21-story high-rise building project in Yogyakarta. The research is motivated by the need for effective time management in construction projects to avoid delays that may escalate costs and disrupt project execution. The objectives are to determine the estimated duration for completing the building’s structural work, compare the differences between the initial schedule and the results of PERT and CPM analyses. The study employs a case study approach, with primary data collected through direct interviews with project stakeholders regarding activity durations and predecessors, as well as secondary data from project documentation, including schedules and structural drawings. Data analysis involves applying PERT calculations using three-time estimates (optimistic, most likely, and pessimistic) and identifying critical paths through CPM. Data processing and network diagram visualization are conducted using a project management software to comprehensively map critical and non-critical project activities.  Results indicate that the CPM method predicts a project duration of 419 days, 237 days shorter than the initial schedule, while the PERT method estimates 580 days, 76 days shorter than the original timeline, with an 82.98% probability of timely completion.  
Co-Authors AB Kusuma Wardani, AB Kusuma Adi, Arief Prasetya Angga, Dimas Arvianto, Ricky Ary Setyawan Astuti, Mega Bhayangkara, Anugraha Hari Claudia, Gabriella Angelisa Claudya, Queen Bilkis Fadlilah, Muhammad Reza Nur Fathoni, RM Guntur Febriayani, Ory Gunawan, Syahrul Hamduna, Sausan Ismu Huwaida, Nabila Yusriyya Islamia, Adellona Merry Kurnia W., Alif Kusumaningtyas, Asteria Nadhia Muji Rifai, Muji Muttaqin, Zusron Panuwun, Rizky Tulus Pradipta, Timotheus Ardya Pramesti, Dea Maulida Pramesti, Florentina Pungky Pramono, Pilang Maharani Putri, Quini Athaya Ramadhan, Rheo Rifa’i, Muji Rosalianto, Aditya Safari, Athiah Santo, Thomas Karita Santoso, Fazabella Wijaya Saputra, Ardymas Febrian Senja Rum Harnaeni Senot Sangadji, Senot Setiawan, Ary Setiono setiono setiono Setiono Setiono Setiyanti, Oktaviona Dwi Shonata, Mutiara Soeharto, Delan Solly Aryza Sri Sunarjono Sugiyarto Sugiyarto Sunarni, Retno Suryoto Suryoto Sutanto, Reska Candra Ulinnuha, Nadira Zalfa Utomo, Tegar Adhi Wijaya, Muhammad Caesayuda Wytti, Khalijah Herma Yuwono, Daltaliya Aisyah