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Reno Pratiwi
Universitas Balikpapan
Agriculture, Biological Sciences & Forestry Civil Engineering, Building, Construction & Architecture Computer Science & IT Earth & Planetary Sciences Economics, Econometrics & Finance Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Social Sciences

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Economy Circular Pengelolaan Sampah Organik Pasar di Peternakan Sapi dari Hulu hingga Hilir (Studi Kasus di Kelompok Tani Sumber Makmur, Gunung Tembak Kota Balikpapan) Sekar Inggar Rengganis; Noneng Dewi Zannaria; Reno Pratiwi; Ika Bayu Kartikasari; Galuh Boyo Munanto; Evi Oktavia
Jurnal Rekayasa Tropis, Teknologi, dan Inovasi (RETROTEKIN) Vol. 1 No. 2 (2023): RETROTEKIN (Rekayasa Tropis, Teknologi, dan Inovasi)
Publisher : Fakultas Teknik Universitas Mulawarman

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

Abstract

Management of market organic waste in Balikpapan City is an important thing to do to reduce the burden on Manggar TPA. Organic waste, especially market organic waste, which continues to increase along with the rapid growth of the population in Balikpapan City as a buffer city for the IKN can increase the risk of environmental pollution and safety. Market organic waste can be used as an alternative feed for cattle and goats and this has been done by the Sumber Makmur Farmer Group, Gunung Tembak, Balikpapan City. In addition to utilizing market organic waste as cattle and goat feed, the Sumber Makmur Farmer Group has also managed cow manure in the form of solid and liquid into solid organic fertilizer and liquid organic fertilizer. Thus there has been a series of Economy circular which can be an alternative in overcoming the problem of market organic waste in the Balikpapan city as well as increasing economic value. The method in this study uses a descriptive-qualitative method with a design action research model or action research by observing directly to obtain information from the object of study. Discussion of this research is divided into 4 parts such us System for Utilizing Market Organic Waste as Cattle and Goat Feed, the system for utilizing solid cow manure, the system for utilizing liquid cow manure, the potential for managing cattle and goat farms based on an economy circular. The results of observations at the Sumber Makmur Farmer Group, Gunung Tembak, Balikpapan City, show that there have been livestock management activities that apply an economy circular from upstream to downstream. Furthermore, it is hoped that further and in-depth research can be carried out in terms of economy circular-based livestock management in the utilization of organic waste as animal feed so that it can provide more comprehensive information to the wider community so that they can implement this system. Keyword: market organic waste, farming, animal feed, economic circular, manure
Analisis Building Information Modelling (BIM) 5D Pada Pekerjaan Struktur Graha Sucofindo Balikpapan Yoga Dwi Putra; Irna Hendriyani; Reno Pratiwi
Jurnal Konstruksi Vol 22 No 2 (2024): Jurnal Konstruksi
Publisher : Institut Teknologi Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33364/konstruksi/v.22-2.2088

Abstract

BIM hadir sebagai bukti perkembangan teknologi digital yang telah mempengaruhi dan memberikan manfaat di lingkup pekerjaan konstruksi, mulai dari perencanaan proyek, penjadwalan proyek, pengelolaan proyek, manajemen bangunan dan lain – lainnya.  Dalam menghitung anggaran biaya proyek harus dilakukan se-efisien mungkin untuk menghindari terjadinya pembengkakan biaya pembangunan. Oleh karena itu pada penelitian ini menggunakan konsep Building Information Modelling (BIM) 5D yang bertujuan untuk menganalisis selisih volume dan estimasi biaya antara metode BIM dengan perhitungan konsultan pada pekerjaan struktur Graha Sucofindo Balikpapan. Dari hasil perhitungan menggunakan konsep BIM 5D didapatkan selisih biaya pekerjaan pembesian sebesar Rp. Rp. 123.946.941,75 dengan persentase selisih sebesar 7,34% dan untuk selisih biaya pekerjaan pembetonan sebesar Rp. 234.507.945,47 dengan presentase selisih sebesar 30,32 %. Hasil dari perhitungan ini menunjukkan bahwa menggunakan konsep BIM 5D pada pekerjaan pembesian dan pembetonan dapat menghemat total biaya sebesar Rp 312.943.542,70 dengan persentase mencapai 12,71%. Hal ini berarti bahwa perhitungan biaya dengan konsep BIM 5D lebih rendah dibandingkan dari perhitungan biaya yang dihasilkan oleh konsultan. Hasil ini juga menunjukan bahwa implementasi BIM 5D di Autodesk Revit lebih efisien dalam perhitungan volume dan estimasi biaya.
Implementasi Building Information Modeling (BIM) 5D Pada Pekerjaan Struktur Rumah Tinggal Type 400: Studi Kasus di Perumahan Grand City Muhammad Ardin; Irna Hendriyani; Reno Pratiwi
Jurnal Konstruksi Vol 23 No 2 (2025): Jurnal Konstruksi
Publisher : Institut Teknologi Garut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33364/konstruksi/v.23-2.2427

Abstract

Building Information Modeling (BIM) represents a technological advancement in the modern era that continues to develop, particularly in the construction industry, by supporting planning and capital management. One of the software applications that can be used to support BIM is Autodesk Revit. The objective of this research is to compare the results of cost estimation for building structures using conventional methods and BIM, applied to a type 400 residential house project located in Balikpapan, East Kalimantan Province, within the Grand City housing area. The study focuses on calculating structural work costs, highlighting significant differences in structural components, particularly in reinforcement and concreting work. The findings indicate a cost difference of 16.82% in reinforcement work and 12.7% in concreting work, resulting in an overall budget estimation discrepancy of 15.62%. Based on these results, this study concludes that the use of BIM is highly necessary for identifying and evaluating cost estimation in building or construction planning from the perspective of project planners.
Penerapan Metode PDM dan Pert pada Proyek Pembangunan Pusat Layanan Haji dan Umroh Terpadu Kota Balikpapan Azan Yamani Purwanto; Gunaedy Utomo; Reno Pratiwi
Jurnal Talenta Sipil Vol 9, No 1 (2026): Februari
Publisher : Universitas Batanghari Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33087/talentasipil.v9i1.873

Abstract

The construction of the Integrated Hajj and Umrah Service Center (PLHUT) in Balikpapan City is a construction project that requires effective time management to ensure timely completion. This study aims to analyze the critical path and the probability of successful project completion using the Precedence Diagram Method (PDM) and Program Evaluation and Review Technique (PERT). The PDM method is utilized to identify the project’s critical path by structuring the interdependencies of work items, visualized through a network diagram. Meanwhile, the PERT method is employed to calculate the probability of project completion within the planned duration, taking into account the uncertainties in activity durations. Based on the analysis results, the PLHUT construction project in Balikpapan City, with a planned duration of 160 days, contains several critical activities that require careful resource management and scheduling. The probability calculation using the PERT method indicates a high likelihood of completing the project on time. Thus, the combination of PDM and PERT methods serves as an effective approach in construction project management to enhance efficiency and schedule accuracy.
Studi Komparatif Perhitungan Anggaran Biaya dengan Building Information Modelling (BIM) 5D pada Pembangunan Gedung Sistem Administrasi Manunggal Satu Atap Kepolisian Daerah Kalimantan Timur Putri Arlisdyawati Agustina Amini; Reno Pratiwi; Fachruddin Harami
Jurnal Talenta Sipil Vol 9, No 1 (2026): Februari
Publisher : Universitas Batanghari Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33087/talentasipil.v9i1.1143

Abstract

In the construction industry, the accuracy of volume calculations and cost estimation is a crucial factor in ensuring project efficiency and quality. However, many projects in Indonesia still use conventional methods such as AutoCAD and Microsoft Excel, which are not integrated and prone to input errors and cost overruns. Along with technological advancements, Building Information Modelling (BIM) has emerged as an innovative solution capable of integrating all project data into a single digital model that can be updated in real time. This study aims to compare cost estimation results between the conventional method and the 5D BIM method using Autodesk Revit software on reinforced concrete structural works for the construction of the One-Stop Administration System (SAMSAT) Building of the East Kalimantan Regional Police, as well as to analyze the level of efficiency achieved. The research employs a comparative-quantitative approach using data obtained from the Detail Engineering Design (DED), Bill of Quantities (BoQ), and Unit Price Analysis (AHSP). The results show that the conventional method produces higher costs due to generalized volume calculations and excessive tolerances, while the 5D BIM method provides more accurate, efficient, and integrated results since each structural element is calculated automatically through digital modeling. Therefore, the implementation of 5D BIM has proven to enhance accuracy, time efficiency, and overall effectiveness in construction cost planning compared to conventional methods.
Implementasi BIM 5D pada Pekerjaan Beton Bertulang pada Proyek Pembangunan Gedung Tower SSC di Balikpapan Arman Sulfian Dani; Reno Pratiwi; Suheriah Mulia Devi
Jurnal Talenta Sipil Vol 9, No 1 (2026): Februari
Publisher : Universitas Batanghari Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33087/talentasipil.v9i1.1108

Abstract

The calculation of construction cost estimates by planning consultants generally still relies on Microsoft Excel. This conventional method is prone to errors due to inaccuracies in data interpretation and the complexity of building design calculations. Such conditions may result in significant discrepancies, potentially leading to cost overruns. Therefore, a more efficient and accurate approach to cost estimation is required, one that can also present project information comprehensively. This study aims to compare the calculation results of volume and Cost Budget Plan (RAB) for reinforced concrete works between the conventional method used by planning consultants and the Building Information Modeling (BIM) 5D method. The research was conducted as a case study on the SSC Tower Building Project in Balikpapan using Autodesk Revit software to generate BIM-based cost estimates. The results indicate that the difference in volume calculation for reinforcement and concrete works is 0%, and the difference in cost estimation for reinforced concrete works is also 0%. This finding suggests that the BIM 5D method produces results consistent with those of the conventional consultant method. In conclusion, BIM 5D application in cost estimation provides results as accurate as the conventional method, with added advantages in visualization, interactive project information, and efficiency in the decision-making process.
Analisis Keterlambatan Proyek Pembangunan Gudang dengan Precedence Diagram Method (PDM) dan Program Evaluation and Review Technique (PERT) Putra Chandra Rachmat Alim; Reno Pratiwi; Suheriah Mulia Devi
Jurnal Talenta Sipil Vol 9, No 1 (2026): Februari
Publisher : Universitas Batanghari Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33087/talentasipil.v9i1.1110

Abstract

Construction project delays are a common issue that significantly affect cost, quality, and completion time. This condition occurred in the construction of the PT Telkom Closed Warehouse in Balikpapan, which was originally planned to be completed within 90 calendar days but experienced a 28-day delay, resulting in a total completion time of 118 days. The delay was mainly caused by weak supervision and the absence of a structured planning method from the beginning. This study aims to analyze critical activities using the Precedence Diagram Method (PDM) and to calculate the probability of project completion using the Program Evaluation and Review Technique (PERT). The analysis results indicate that concrete structure work, wall installation, flooring, roofing, and mechanical-electrical work were identified as critical path activities. In addition, the PERT method provided an overview of the probability of achieving the actual project schedule. The conclusion of this research emphasizes that the application of PDM and PERT can help contractors plan schedules more accurately, reduce the risk of delays, and optimize the use of project resources.
EVALUASI QUANTITY TAKE-OFF DAN ESTIMASI BIAYA BERBASIS BUILDING INFORMATION MODELING PADA STRUKTUR BAWAH JEMBATAN PULAU BALANG Muhammad Rifky Dimiko; Reno Pratiwi; Suheriah Mulia Devi
STORAGE: Jurnal Ilmiah Teknik dan Ilmu Komputer Vol. 5 No. 3 (2026): Agustus
Publisher : Yayasan Literasi Sains Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55123/storage.v5i3.9019

Abstract

Ketepatan quantity take-off menjadi bagian penting dalam penyusunan estimasi biaya proyek jembatan karena perbedaan kuantitas yang relatif kecil dapat menghasilkan selisih biaya yang besar. Penelitian ini bertujuan mengevaluasi perbedaan volume beton, berat penulangan, dan estimasi biaya antara hasil perhitungan konsultan dan quantity take-off berbasis Building Information Modeling pada pekerjaan struktur bawah Proyek Pembangunan Duplikasi Jembatan Pulau Balang Bentang Pendek. Elemen yang dianalisis meliputi pile cap, abutmen, dan pier. Penelitian menggunakan metode deskriptif komparatif dengan pendekatan studi kasus. Model dikembangkan menggunakan Autodesk Revit 2025 berdasarkan Detail Engineering Design dan gambar penulangan. Model diklasifikasikan setara Level of Development 350 untuk tujuan quantity take-off desain dan divalidasi melalui pemeriksaan bentuk, dimensi, elevasi, material, serta konfigurasi tulangan terhadap dokumen proyek. Volume dan berat material dari model dikalikan dengan harga satuan pekerjaan yang sama dengan perhitungan konsultan. Persentase deviasi dihitung dengan menggunakan hasil konsultan sebagai nilai pembanding. Hasil penelitian menunjukkan volume beton berbasis BIM sebesar 7.856,61 m³ dan volume konsultan sebesar 7.980,50 m³, dengan deviasi 123,89 m³ atau 1,552%. Berat penulangan berbasis BIM sebesar 1.288.896,49 kg dan hasil konsultan sebesar 1.323.863,47 kg, dengan deviasi 34.966,98 kg atau 2,64%. Estimasi biaya berbasis BIM sebesar Rp106.501.240.602,40, sedangkan estimasi konsultan sebesar Rp108.425.279.653,20. Selisih estimasi mencapai Rp1.924.039.050,80 atau 1,775%. Nilai tersebut merupakan selisih estimasi dan belum menunjukkan penghematan aktual karena belum dibandingkan dengan as-built quantity serta biaya akhir proyek. Hasil quantity take-off BIM juga bergantung pada kelengkapan pemodelan kait, panjang penyaluran, sambungan lewatan, tulangan tambahan, dan elemen konstruktif lainnya. Penelitian menunjukkan bahwa BIM dapat digunakan sebagai alat verifikasi kuantitas dan estimasi biaya, tetapi hasilnya tetap memerlukan audit model dan pemeriksaan terhadap dokumen teknis.
Analisis Pengaruh Inflasi Regional Terhadap Estimasi Biaya Konstruksi Dikota Balikpapan Sebagai Wilayah Penyangga Ikn (Studi Kasus Pembangunan Rumah Tinggal 2 Lantai TIPE 600) Raisa Meidita Putri; Irna Hendriyani; Reno Pratiwi
Indonesian Journal of Innovation Science and Knowledge Vol. 3 No. 3 (2026): IJISK 2026
Publisher : Fakultas Pendidikan Ilmu Keguruan, Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/ijisk.v3i3.493

Abstract

Balikpapan memiliki peran strategis sebagai pusat pendukung kegiatan logistik dan perekonomian bagi Nusantara (Ibu Kota Nusantara/IKN). Peningkatan ak-tivitas pembangunan di wilayah tersebut turut mendorong terjadinya inflasi dae-rah yang berpengaruh terhadap harga material, upah tenaga kerja, serta estimasi biaya pembangunan rumah tinggal. Penelitian ini bertujuan untuk mengkaji dampak inflasi daerah terhadap estimasi biaya konstruksi rumah tinggal dua lan-tai Tipe 600 di Kota Balikpapan selama periode 2021–2025. Penelitian ini menggunakan metode kuantitatif dengan pendekatan studi kasus. Data yang di-analisis berupa data sekunder, meliputi harga material, upah tenaga kerja, dan Analisis Harga Satuan Pekerjaan (AHSP) pada setiap tahun pengamatan. Selan-jutnya, data tersebut digunakan untuk menyusun kembali Rencana Anggaran Biaya (RAB) proyek secara tahunan. Perubahan biaya konstruksi dianalisis me-lalui perhitungan deviasi absolut dan deviasi relatif kumulatif untuk mengetahui tingkat kenaikan biaya serta komponen pekerjaan yang paling sensitif terhadap inflasi. Hasil penelitian menunjukkan bahwa total harga material mengalami ke-naikan rata-rata sebesar 13% per tahun. Sementara itu, upah pekerja, tenaga terampil, mandor, dan pengawas meningkat sekitar 4,7%–4,8% per tahun. Kon-disi tersebut menyebabkan estimasi total biaya konstruksi meningkat dari Rp1.888.331.209,64 pada tahun 2021 menjadi Rp2.700.303.193,40 pada tahun 2025, atau mengalami kenaikan kumulatif sebesar 37,55%. Deviasi kumulatif lebih dari 50% ditemukan pada pekerjaan kelistrikan, sanitasi dan pemipaan, atap, persiapan, beton, serta pengecatan. Pekerjaan kelistrikan mencatat deviasi tertinggi sebesar 76,5%, diikuti pekerjaan sanitasi dan pemipaan sebesar 71,1% serta pekerjaan atap sebesar 69,8%. Hasil ini menegaskan pentingnya memper-timbangkan inflasi daerah dalam penyusunan RAB, khususnya untuk meningkat-kan ketepatan perencanaan anggaran dan efektivitas pengendalian biaya kon-struksi di Balikpapan.
Analisis Akurasi Volume Dan Biaya Pekerjaan Struktur Antara Metode Konvensional Dan Bim 5d (Studi Kasus Proyek Pembangunan Gedung Mako Batalyon T900 Brimob Polda KALTIM) Indyra Shafa Alliyah Sudarsono; Reno Pratiwi; Martheana Kencanawati
Indonesian Journal of Innovation Science and Knowledge Vol. 3 No. 3 (2026): IJISK 2026
Publisher : Fakultas Pendidikan Ilmu Keguruan, Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/ijisk.v3i3.534

Abstract

Industri konstruksi Indonesia sedang mengalami transformasi digital yang didorong oleh tuntutan efisiensi, akurasi, dan transparansi dalam pengelolaan proyek. Penelitian ini bertujuan untuk menganalisis perbandingan akurasi volume dan biaya pekerjaan struktur antara metode konvensional dan Building Information Modeling (BIM) 5D pada Proyek Pembangunan Gedung Mako Batalyon T900 Brimob Polda Kaltim. Penelitian menggunakan metode kuantitatif dengan pendekatan komparatif. Data dikumpulkan melalui dokumen teknis proyek berupa Detail Engineering Design (DED), Rencana Anggaran Biaya (RAB), dan Analisis Harga Satuan Pekerjaan (AHSP) 2024. Pemodelan BIM 5D dilakukan menggunakan Autodesk Revit 2024 pada elemen struktur boredpile, pilecap, sloof, kolom, balok, dan pelat lantai. Perhitungan konvensional dilakukan berdasarkan data konsultan, sedangkan hitungan ulang digunakan sebagai verifikasi. Hasil penelitian menunjukkan bahwa metode BIM 5D menghasilkan volume beton sebesar 438,390 m³, lebih rendah 0,80% dibanding metode konvensional (442,178 m³). Volume pembesian BIM 5D sebesar 69.878,25 kg, lebih rendah 3,73% dibanding metode konvensional (72.563,08 kg). Total biaya pekerjaan struktur metode BIM 5D sebesar Rp2.104.784.949,88, lebih rendah Rp57.110.699,33 (2,64%) dibanding metode konvensional Rp2.161.895.649,21. Perbedaan tersebut disebabkan oleh pembulatan perhitungan pada metode konvensional, perbedaan dimensi antara RAB dan gambar DED, serta perhitungan ganda (overlap) pada elemen struktur. BIM 5D terbukti lebih akurat dalam menghitung volume dan biaya pekerjaan struktur karena berbasis geometri model 3D yang menghilangkan perhitungan ganda dan menghasilkan konsistensi dengan hitungan ulang berdasarkan gambar DED.
Co-Authors Adi Muhammad Ridho Andi Marini Indriani, Andi Marini Arman Sulfian Dani Azan Yamani Purwanto Clara Annisa Forester Bangabua Evi Oktavia Fachruddin Harami Galuh Boyo Munanto Gunaedy Utomo Hikmah Maya Sari Indyra Shafa Alliyah Sudarsono Irna Hendriyani Kencanawati, Martheana Leni Sucilianti Lusi Rahmaniah Marisha Dewi Sartika Maslina Maslina Muhammad Ardin Muhammad Rifky Dimiko Mustakim Mustakim Mustakim Noneng Dewi Zannaria Nour Qadri Putra Chandra Rachmat Alim Putri Arlisdyawati Agustina Amini Rahmat Raisa Meidita Putri Rina Dwi Nurlita Sekar Inggar Rengganis Suheriah Mulia Devi Yepi Aprilianus Yoga Dwi Putra Zidan Ryan Ramadhan