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All Journal Jurnal Planologi Sultan Agung Teknik Sipil dan Arsitektur Wahana Teknik Sipil: Jurnal Pengembangan Teknik Sipil Journal of Advanced Civil and Environmental Engineering Jurnal DISPROTEK Astonjadro Portal: Jurnal Teknik Sipil Indonesian Journal of Community Services Jurnal Keselamatan Transportasi Jalan (Indonesian Journal of Road Safety) Jurnal Teknik Sipil dan Arsitektur Jurnal Teknik Sipil-Arsitektur Jurnal Sosial dan Teknologi Jurnal Ilmiah Wahana Pendidikan Action Research Literate (ARL) Proceedings Series on Physical & Formal Sciences Jurnal Impresi Indonesia Jurnal Teknik Sipil Giratory Upgris Jurnal Kajian Ruang AKADEMIK: Jurnal Mahasiswa Humanis INTERNATIONAL JOURNAL OF MECHANICAL COMPUTATIONAL AND MANUFACTURING RESEARCH Innovative: Journal Of Social Science Research Jurnal Civil Engineering Study Jurnal Ilmiah Sultan Agung VISA: Journal of Vision and Ideas Advance Sustainable Science, Engineering and Technology (ASSET) Journal of Green Science and Technology Jurnal Keselamatan Transportasi Jalan
Kartono Wibowo, Kartono
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APLIKASI VALUE ENGINEERING PADA PEKERJAAN TAMBAH KURANG UNTUK MENINGKATKAN EFISIENSI BIAYA KONTRAKTOR (Studi Kasus: Gedung D BPOM Jakarta) Hidayat, Indra; Wibowo, Kartono; Sumirin, Sumirin
Wahana Teknik Sipil: Jurnal Pengembangan Teknik Sipil Vol. 29 No. 2 (2024): Wahana Teknik Sipil
Publisher : Politeknik Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32497/wahanats.v29i2.6155

Abstract

Cost planning is one of the important things in a development project, both for theproject owner and the implementing contractor. The contractor has a planned costtarget at the tender stage, however, changes in costs may occur during theimplementation period due to additional or less work and resulting in changes incosts. To be able to achieve the cost efficiency target, this can be done by carryingout value engineering. The stages of the value engineering method consist of theinformation stage, function analysis stage, creativity stage, evaluation stage,development stage and recommendation stage. The application of value engineeringin the BPOM Building D Construction Project can provide an increase cost and stillmaintain function. Contractor get cost efficiency of IDR 1,528,657,929,- or 2.52%,while the project owner gets a cost efficiency of IDR 1,182,279,319 or 1.66%.
Value engineering analysis of the green semesta housing project in Semarang Faza, Muhammad Arief; Antonius, Antonius; Wibowo, Kartono
International Journal of Mechanical Computational and Manufacturing Research Vol. 13 No. 4 (2025): February: Mechanical Computational And Manufacturing Research
Publisher : Trigin Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35335/computational.v13i4.226

Abstract

The demand for housing continues to rise along with the growing population. Housing development is one of the efforts to meet society's need for residential homes. The Green Semesta housing project in Semarang offers Type 36 and Type 45 houses. However, given the vast area of Semarang and the intense competition among housing developers offering higher-segment housing at similar price ranges, it can be concluded that there is cost inefficiency in the construction of this project. Therefore, a solution is needed to address this issue by applying Value Engineering. This study aims to analyze the optimization of the cost budget plan without compromising the quality and functionality of the buildings using the Value Engineering method.This method compares the cost advantages of the landscape design before and after redesign by modifying the house layout, appearance, and the number and composition of houses/site plans to achieve maximum benefits. This analysis follows the stages of Value Engineering Planning, which include the information stage, creative stage, analysis stage, recommendation stage, and presentation stage. Based on the results of the Value Engineering analysis of the Green Semesta Housing Project in Semarang, the most profitable design alternative is Design B, which involves modifying the number of Type 45 units from 21 to 9 and increasing the Type 36 units from 16 to 31. After the redesign, the production cost for Type 45 units decreased from IDR 135,254,167.70 to IDR 124,656,875,91, while the original cost for Type 36 units decreased from IDR 96,224,877.00 to IDR 93,086,166.00.
Model Teknologi Rumah Instan Baja Ringan Sebagai Alternatif Gudang Proyek Yang Praktis Dan Ekonomis Arifin, Nur; Wibowo, Kartono; Ni’am, M Faiqun
Jurnal Kajian Ruang Vol 5, No 1 (2025): Maret
Publisher : Universitas Islam Sultan Agung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30659/jkr.v5i1.44328

Abstract

AbstrakGudang proyek memiliki peran krusial dalam mendukung kelancaran konstruksi, terutama dalam manajemen material agar proyek berjalan efisien dari segi waktu dan biaya. Namun, metode konvensional dalam pembangunan gudang proyek sering kali tidak optimal karena durasi pengerjaan yang lama dan biaya tinggi. Studi ini menawarkan alternatif model gudang proyek berbasis teknologi rumah instan dengan struktur baja ringan yang lebih cepat dibangun dan lebih ekonomis dibandingkan metode konvensional. Penelitian ini menggunakan pendekatan kuantitatif dan deskriptif kualitatif untuk menganalisis aspek mutu, biaya, dan waktu pembangunan gudang proyek. Data diperoleh melalui analisis harga satuan pekerjaan (AHSP) serta kajian terhadap kombinasi material yang optimal. Hasil penelitian menunjukkan bahwa model gudang dengan struktur baja ringan, atap galvalum spandek, dan dinding GRC 6 mm memiliki efisiensi tertinggi dengan biaya konstruksi Rp 1.220.586,67 per meter persegi. Berbeda dari penelitian sebelumnya yang lebih fokus pada penerapan baja ringan dalam proyek hunian modular, penelitian ini menekankan efisiensi baja ringan dalam gudang proyek, yang masih jarang dikaji. Studi ini berkontribusi dalam menghadirkan solusi konstruksi yang lebih adaptif dan hemat biaya bagi industri konstruksi. Implikasi kebijakan dari penelitian ini menunjukkan bahwa penerapan teknologi rumah instan berbasis baja ringan dapat menjadi bagian dari strategi percepatan pembangunan infrastruktur, khususnya dalam konteks pengelolaan tata ruang wilayah untuk mendukung ketersediaan fasilitas penyimpanan material yang lebih efisien. Oleh karena itu, integrasi teknologi ini dalam standar perencanaan gudang proyek dalam sistem tata ruang perkotaan dan wilayah direkomendasikan guna meningkatkan efisiensi, mengoptimalkan penggunaan lahan, serta mengurangi pemborosan sumber daya dalam industri konstruksi.Kata Kunci : Baja Ringan, gudang proyek, biaya AbstractProject warehouses play a crucial role in ensuring smooth construction processes, particularly in material management to enhance time and cost efficiency. However, conventional methods of project warehouse construction are often suboptimal due to prolonged construction durations and high costs. This study proposes an alternative project warehouse model based on instant house technology with a lightweight steel structure, which offers faster construction and greater cost efficiency than conventional methods.This research employs a quantitative and descriptive qualitative approach to analyze the quality, cost, and time aspects of project warehouse construction. Data were obtained through unit price analysis (AHSP) and an evaluation of optimal material combinations. The findings indicate that a warehouse model with a lightweight steel structure, galvalume spandex roofing, and 6 mm GRC wall panels provides the highest efficiency, with a construction cost of Rp 1,220,586.67 per square meter. Unlike previous studies that primarily focused on the application of lightweight steel in modular housing projects, this research highlights its efficiency in project warehouse construction, an area that remains underexplored. This study contributes to the construction industry by presenting a more adaptive and cost-effective structural solution. The policy implications of this study indicate that the application of lightweight steel-based instant house technology can be part of the strategy to accelerate infrastructure development, especially in the context of maintaining regional spatial planning to support the availability of more efficient material storage facilities. Therefore, the integration of this technology into project warehouse planning standards in urban and regional spatial planning systems is recommended to increase efficiency, optimize land use, and reduce waste of resources in industrial construction.Keyword : light steel, project warehouse, cost
Analisa Kelayakan Investasi Pada Perumahan Klayan Regency Cirebon Budiman, Agus; Wibowo, Kartono; Antonius, Antonius
Jurnal Ilmiah Wahana Pendidikan Vol 11 No 4.D (2025): Jurnal Ilmiah Wahana Pendidikan 
Publisher : Peneliti.net

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Abstract

Kebutuhan manusia yang paling mendasar dan dinilai sangat penting adalah tempat tinggal. Rumah sebagai tempat tinggal untuk berlindung dan berkumpul bersama keluarga dan juga sebagai investasi di masa yang akan datang. Investasi di bidang perumahan semakin meningkat akibat pertumbuhan jumlah penduduk yang semakin meningkat pula. Namun, sebelum melakukan investasi di bidang properti sangat diperlukan studi kelayakan finansial dari investasi tersebut. Penelitian ini bertujuan untuk menganalisis kelayakan investasi pada Perumahan Klayan Regency di Daerah Cirebon dengan Metode Gabungan dari Analisis Kualitatif dan Kuantitatif dengan menggunakan data yang bersifat kualitatif. Penelitian dimulai dari Tahap Survei Lokasi, Pengumpulan Data, Master Plan, Analisis Biaya dan juga Manfaat, Analisis Kelayakan dengan berbagai parameter yakni Net Present Value (NPV), Internal Rate Of Return (IRR), Benefit Cost Ratio (BCR), Index Profitability (IP), Break Event Point (BEP), dan juga Investible Surplus Method (ISM). Dari hasil analisa didapatkan hasil yakni Nilai NPV sebesar Rp. 3,799.223.783 > 0, Nilai IRR sebesar 11,53% > Nilai MARR sebesar 8%, Nilai BCR sebesar 1,491 > 1 , Nilai IP sebesar 2,21 > 1, BEP terjadi pada penjualan Unit Rumah ke-9 dengan rincian 6 Unit Rumah Tipe 36 dan 3 Unit Rumah Tipe 45 di bulan ke-12, dan Nilai ISM sebesar Rp. 4,165,300,000 > 0. Berdasarkan hasil analisis tersebut, investasi dapat dinyatakan layak untuk dijalankan dan dinilai dapat memberikan keuntungan bagi Pihak terkait.
Implementation of Building Construction Management Anwar, Rizali Roy; Pratikso, P; Wibowo, Kartono; Sulistyo, Juny Andry
JACEE (Journal of Advanced Civil and Environmental Engineering) Vol 8, No 1 (2025): April
Publisher : Universitas Islam Sultan Agung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30659/jacee.8.1.24-31

Abstract

The problem of building construction on soft soil of the structure, so that at the planning stage it is known that there are quite a lot of design criteria, especially in the lower building structure and ground floor. Similarly, during the development phase, construction equipment and methods face the problem of a very high level of risk analyst on soft soil conditions and prone to subsidence. Resource risk plays an important role in the project time frame on infrastructure projects on soft soils during the construction phase. The use of Decision Support System (DSS) for construction project management with a Scientific Evolution Analysis approach., The methodology used is that building repair priorities can be used using the Analytical Hierarchy Process (AHP) and Profile Matching methods. The method is carried out by the implementation of building construction, which is analyzed using the Analytical Hierarchy Process (AHP) method with Excel application software. The decision-making system model was created by generating a computer-based Building Information Management (BIM) application with MySQL. The results of this study are several alternative construction design designs for the bottom of buildings on soft soil depending on the number of floors that greatly affect the type of underground building other than the type of soil, or without D walls and piles and the model developed makes it easy to choose the type of foundation because it is computer-based with PHP-MySQL program.
Analisis Lokasi Rawan Kecelakaan Pada Jalan Dengan Medan Datar Dan Bukit Hadi, Suprapto; Wahyudi, S. Imam; Wibowo, Kartono; Oktopianto, Yogi; Eska Fahmadi, Aat; Widya Anggraeni, Inneke
Jurnal Keselamatan Transportasi Jalan (Indonesian Journal of Road Safety) Vol. 12 No. 1 (2025): JURNAL KESELAMATAN TRANSPORTASI JALAN (INDONESIAN JOURNAL OF ROAD SAFETY)
Publisher : Pusat Penelitian dan Pengabdian Masyarakat (P3M)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46447/ktj.v12i1.686

Abstract

Accidents occur on various road terrains that cause drivers to experience losses from property to fatalities. Prof. Hamka Street and Siliwangi Street are located in the city of Semarang where Prof. Hamka Street is a road with a hilly topography while Siliwangi Street is a flat road. Problems occur on these road sections such as the many accidents that result in fatalities. The existing problems need to be addressed immediately so that they can reduce the risk of accidents in the future. The stages carried out first analyze the characteristics of accidents and vulnerable locations so that they know the most appropriate handling points and recommendations. In determining the location points prone to accidents using the EAN and UCL methods while in identifying the hazards of vulnerable locations using HIRARC. The results obtained on Prof. Hamka Street, the location points are at STA 6 (0 + 700) and 9 (1 + 000) while on Siliwangi Street, the location prone to accidents is at STA 18 (1 + 900) and 5 (0 + 600). The recommended handling is to repair the condition of the road surface that has cracks at the joints, signs at accident-prone locations that are still very lacking, street lighting at accident-prone locations, maintenance on the road so that obstacles on the side of the road do not block visibility and installation of vehicle speed control devices.
SISTEM MANAJEMEN KESELAMATAN DAN KESEHATAN KERJA (SMK3) PADA PROYEK PEMBANGUNAN GEDUNG HOTEL SANTIKA NAGRAK SUKABUMI Setiawan, Prayogi; Wibowo, Kartono; Satrio, Eko Muliawan
Jurnal Ilmiah Penelitian Mahasiswa Vol 2, No 3 (2023): Desember 2023
Publisher : Jurnal Ilmiah Sultan Agung

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Abstract

Penelitian ini dilakukan untuk mengetahui sistem manajemen K3 pada proyek PembangunanHotel Santika Nagrak Sukabumi. identifikasi potensi menjadi faktor untuk mengetahui penyebabterjadinya kecelakaan kerja. Penerapan dan pengawasan pengendalian resiko menjadi faktoruntuk mengetahui pelaksanaan K3 di lokasi proyek untuk mengurangi terjadinya kecelakaankerja.Metode pengumpulan data dengan menyebar kuesioner kepada tenaga ahli tim kontraktorpelaksana dan tenaga kerja, dan observasi lapangan. pengolahan data untuk menguji variabelpenelitian menggunakan Uji Validitas dan Uji Reliabilitas, dan hasil kuesioner respondendilakukan perhitungan Indeks Kepentingan Relatif (IKR). Hasil pengamatan langsungdigunakan untuk menilai penerapan pengendalian resiko yang dilakukan di lokasi proyekdengan penjelasan dari kepala tim K3.Hasil analisis penelitian meliputi potensi kecelakaan kerja, dan penerapan pengendaliankecelakaan kerja dan kegiatan pelaksanaan dan pengawasan. Dari hasil analisis jawabanresponden dan hasil pengamatan langsung kecelakaan kerja ringan wajib menggunakan APDdengan lengkap sering terjadi karena beberapa pekerja tidak teratur menggunakan APDdengan lengkap. Sistem Manajemen K3 proyek Pembangunan Hotel Santika Nagrak Sukabumisudah cukup baik dengan melaksanakan program kerja K3 yang sudah direncanakan daripotensi bahaya dan penerapan pengendalian, pengawasan K3.Kata Kunci : Sistem Manajemen; Keselamatan dan Kesehatan Kerja
Penerapan Re-Engineering pada Proyek Pembangunan Gedung Puskesmas Sragen Alzura, Alfadin Mahbub Gian; Jati, Bagus Purnomo; Wibowo, Kartono; Satrio, Eko Muliawan
Jurnal Ilmiah Penelitian Mahasiswa Vol 3, No 1 (2024): Maret 2024
Publisher : Jurnal Ilmiah Sultan Agung

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Abstract

Dari penelitian ini didapatkan bahwa penerapan konsep Re-engineering mampumenjadi solusi efisien dan efektif dalam mempercepat kemajuan ProyekPembangunan Gedung Puskesmas Sragen. Penelitian ini mengidentifikasipekerjaan struktur dan fokus utama penelitian adalah pada pekerjaan bekistingdan beton, khususnya pada pekerjaan kolom, balok, dan plat lantai, sebagai itempekerjaan yang memerlukan re-engineering. Dengan melibatkan data primerseperti observasi lapangan dan analisis metode eksisting, serta data sekunderberupa Rencana Anggaran Biaya (RAB) dan kurva rencana pelaksanaan. Hasilanalisis menunjukkan bahwa metode alternatif untuk pekerjaan bekistingmencakup bekisting konvensional, bekisting semi sistem, dan bekisting sistem.Sementara itu, metode pengecoran dapat melibatkan beton standart, betondengan campuran Sika Viscocrete-3115 N, dan beton dengan campuranBestmittel.Kata Kunci: Re-engineering, Struktur, Beton, Bekisting
Comparative Analysis of Cost, Quality, and Time on the Productivity of Deep Cement Mixing Work Between Subcontractors in the Probolinggo-Banyuwangi Toll Road Construction Project Section 2 Sholihin, Muhammad Yusuf; Wibowo, Kartono; Arief, Rifqi Brilyant
Jurnal Impresi Indonesia Vol. 4 No. 5 (2025): Indonesian Impression Journal (JII)
Publisher : Riviera Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58344/jii.v4i5.6484

Abstract

The Trans Java toll road project at the eastern end connects Probolinggo-Banyuwangi (Probowangi), along 171,516 km. Phase 1 of the Gending-Besuki section is being carried out. This study analyzed the difference in time, cost, and quality of deep cement mixing (DCM) work by 4 subcontractors in section 2 (STA 09+000 - STA 20+200) who carried out soil improvements before landfilling. Quantitative methods are used to compare time, cost, and quality. The results show the completion time of DCM: PT Keller Ground Indonesia (85 days), PT Leekang Jaya Konstruksi (116 days), and PT Geotekindo (31 days). Highest daily productivity: PT Geotekindo (428.63 m³/day), followed by PT Keller Ground Indonesia (280.32 m³/day) and PT Leekang Jaya Konstruksi (277.53 m³/day). The lowest DCM price is PT Geotekindo (IDR 681,296/m³), PT Leekang Jaya Konstruksi (IDR 706,980/m³), and the highest PT Keller Ground Indonesia (IDR 788,437/m³). Quality (UCS) of all subcontractors ? 1 MPa. Efficiency shows that subcontractors with high productivity have faster turnaround times, lower costs, and quality to standards.
Anticipation and Solutions for Cost Overruns of Material Costs in Toll Road Construction Projects Isfahani, Muhammad Nafhan; Antonius, Antonius; Wibowo, Kartono
ASTONJADRO Vol. 14 No. 2 (2025): ASTONJADRO
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/astonjadro.v14i2.18377

Abstract

This paper presents the results of research on anticipation and solutions for material cost overrun in the open system Toll Road project in Jadebotabek. The purpose of this study is to determine the anticipation and solutions for handling material cost overrun. This study was conducted by surveying 76 correspondents consisting of Managers, Consultants and Contractors involved in the construction of Toll roads in Jadebotabek. The survey results were tested for validity and reliability to determine the dominant factors causing cost overrun, then the development of anticipation and solutions for handling material cost overrun was carried out by a team of experts. The results of the study showed that there were 10 valid factors causing cost overrun with a coefficient value of 0.389 - 0.716 and 13 reliable factors causing cost overrun with a Cronbach's alpha value above 0.700. The results of this study also show that anticipation and solutions for handling material cost overrun in toll road projects are preventive measures to reduce and eliminate the occurrence of cost overrun at the planning stage and at the implementation stage.
Co-Authors Abdul Rochim Ade saputra Agus Budiman Alzura, Alfadin Mahbub Gian Amrilia, Carin Elok Andika, Wahyu Antonius Antonius Antonius Anwar, Rizali Roy Anwar, Roy Rizali Arif, Al chamzawi, chamzawi Eko Muliawan Satrio, Eko Muliawan Eska Fahmadi, Aat Faizal, Ferdian Fatchur Roehman Faza, Muhammad Arief Gantika, Eko Hadi, Suprapto Henny Pratiwi Adi Hermin Poedjiastoeti Ibnu Toto Husodo, Ibnu Toto Indra Hidayat Isfahani, Muhammad Nafhan Jati, Bagus Purnomo Khakim, Ahmad Nur khoirul mahfidh, muhammad KURNIAWAN, RENDRA NURRAMADHAN Martomo, M Mustofa Kamal Aziz, Mustofa Kamal Ni'am, Moh. Faiqun Ni’am, M Faiqun Ni’am, M. Faiqun Nur Arifin, Nur Perwiranegara, Alamsyah Fatih Prabowo Setiyawan, Prabowo Praditya, Alfian Restuyudha Adji Pratikso Pratikso Pratikso, P Puspitasari, Nikmatul Rochmy Rachmat Mudiyono, Rachmat Rifqi Brilyant Arief, Rifqi Brilyant S Imam Wahyudi Salim, M. Afif Setiawan, Ichwan Setiawan, Iwan Ari Setiawan, Prayogi Sholihin, Muhammad Yusuf Slamet Imam Wahyudi, Slamet Imam Soedarsono Soedarsono Subekti, Andip Sulistyo, Juny Andri Sulistyo, Juny Andry Sumirin Sumirin Suryadi, Muhammad Wahyu Suryadi Suzandi, Yudi Syahril Taufik Umam, Syafi'ul Wardiningsih, S. Wicaksana, Bayu Septiaji Widya Anggraeni, Inneke Yogi Oktopianto