Armansyah, Armansyah (2025) ANALISIS DAMPAK KETERLAMBATAN PENGIRIMAN MATERIAL TERHADAP EFISIENSI WAKTU DAN BIAYA PADA PROYEK PEMBANGUNAN KANTOR DPRD KABUPATEN TANA TIDUNG, PROVINSI KALIMANTAN UTARA. Masters thesis, Universitas 17 Agustus 1945 Surabaya.
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Abstract
Keterlambatan distribusi material menjadi salah satu penyebab utama ketidakefisienan proyek konstruksi, terutama pada wilayah dengan kondisi geografis menantang dan infrastruktur terbatas. Penelitian ini mengkaji pengaruh keterlambatan pengiriman material terhadap efisiensi waktu dan biaya pada Proyek Pembangunan Kantor DPRD Kabupaten Tana Tidung, Kalimantan Utara. Analisis dilakukan secara kuantitatif melalui inventarisasi kebutuhan proyek, estimasi biaya pekerjaan, penyesuaian variabel lapangan, penyusunan RAB pembanding, serta evaluasi efisiensi menggunakan metode CPM dan analisis nilai hasil. Simulasi keterlambatan distribusi material 1–3 jam per hari dilakukan untuk menilai perubahan biaya, durasi, dan profitabilitas proyek. Hasil penelitian menunjukkan bahwa keterlambatan material berdampak signifikan terhadap peningkatan biaya proyek. Biaya aktual meningkat menjadi Rp 44.888.900.000 atau 92,55% dari nilai kontrak, lebih tinggi dibandingkan rencana sebesar 92,00%. Keterlambatan bahan utama seperti semen, besi tulangan, dan beton ready mix menyebabkan idle time, rescheduling aktivitas, serta kebutuhan lembur yang memicu pembengkakan biaya. Selain itu, keterlambatan material menurunkan margin keuntungan proyek dari 8,00% menjadi 7,45%, atau turun sebesar 0,55% akibat meningkatnya biaya operasional. Analisis sensitivitas menunjukkan bahwa setiap kenaikan biaya 1% pada aktivitas terdampak dapat mengurangi margin keuntungan sekitar 0,8%. Dari aspek waktu, keterlambatan distribusi material menyebabkan proyek mundur selama 28 hari karena seluruh aktivitas terdampak berada pada jalur kritis tanpa kelonggaran waktu. Kondisi ini dipengaruhi oleh penjadwalan ulang pekerjaan, penurunan produktivitas, serta penambahan jam kerja untuk mengejar ketertinggalan.
| Item Type: | Thesis (Masters) |
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| Uncontrolled Keywords: | keterlambatan material, efisiensi waktu, efisiensi biaya |
| Subjects: | T Technology > TA Engineering (General). Civil engineering (General) |
| Divisions: | Fakultas Teknik > magister teknik sipil |
| Depositing User: | MTS Magister Teknik Sipil 2025 |
| Date Deposited: | 10 May 2002 17:40 |
| Last Modified: | 10 May 2002 17:40 |
| URI: | http://repository.untag-sby.ac.id/id/eprint/43674 |
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