PANGESTU, DICKY CAHYO (2026) ANALISIS PELAKSANAAN PERBAIKAN STRUKTUR KOLOM DAN BALOK BERTULANG DITINJAU DARI ASPEK WAKTU DAN BIAYA (STUDI KASUS: PROYEK HARRISMA OFFICE TOWER). S1 thesis, Universitas Mercu Buana Jakarta.
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Abstract
High-rise building construction requires the achievement of time, cost, and quality targets. However, defects such as cracks, honeycombing, and hairline cracks may occur in reinforced concrete structures and require repair work. This study aims to identify the types and causes of defects, analyze the repair methods applied, and calculate the duration and cost of reinforced concrete column and beam repairs in the Harrisma Office Tower Project. A quantitative descriptive method with a case study approach was employed. Data were obtained through field observations, project documentation, working drawings, work reports, and repair volume, duration, and cost records. The results identified 24 defect locations, consisting of 8 crack locations with a total length of 14.20 m, 6 honeycombing locations with a total area of 3.5602 m², and 10 hairline crack locations with a total length of 9.90 m. The repair methods applied were epoxy injection for cracks, patching for honeycombing, and coating for hairline cracks. Based on the analysis results, the total cumulative duration of the repair activities was 32 days, consisting of 16 days for crack repairs, 6 days for honeycombing repairs, and 10 days for hairline crack repairs. Based on the parallel work schedule, the overall repair work period was 16 working days, following the crack repair work as the activity with the longest duration. The repair activities could be carried out at different locations and overlapped with the main structural work; therefore, they did not indicate an overall project delay. The total estimated repair cost based on the unit price analysis was IDR 40,209,591.30, equivalent to 0.38% of the structural work value and 7.60% of the structural work retention value. Keywords: Concrete Repair, Epoxy injection, Patching, Coating, Repair Duration, Repair Cost Pelaksanaan konstruksi gedung bertingkat menuntut tercapainya sasaran waktu, biaya, dan mutu. Namun, pada pekerjaan struktur beton bertulang masih dapat terjadi kerusakan berupa retak, keropos, dan retak rambut yang memerlukan pekerjaan perbaikan. Penelitian ini bertujuan mengidentifikasi jenis dan penyebab kerusakan, menganalisis metode perbaikan, serta menghitung durasi dan biaya perbaikan kolom dan balok beton bertulang pada Proyek Harrisma Office Tower. Penelitian menggunakan metode deskriptif kuantitatif dengan pendekatan studi kasus. Data diperoleh melalui observasi lapangan, dokumentasi proyek, gambar kerja, laporan pekerjaan, serta data volume, durasi, dan biaya perbaikan. Hasil penelitian menunjukkan terdapat 24 titik kerusakan, terdiri atas 8 titik retak sepanjang 14,20 m, 6 titik keropos seluas 3,5602 m², dan 10 titik retak rambut sepanjang 9,90 m. Metode perbaikan yang diterapkan adalah epoxy injection untuk retak, patching untuk keropos, dan coating untuk retak rambut. Berdasarkan hasil analisis, total durasi aktivitas kumulatif pekerjaan perbaikan adalah 32 hari, terdiri atas 16 hari pekerjaan retak, 6 hari pekerjaan keropos, dan 10 hari pekerjaan retak rambut. Berdasarkan jadwal pelaksanaan secara paralel, rentang pelaksanaan pekerjaan perbaikan adalah 16 hari kerja, mengikuti pekerjaan retak sebagai aktivitas dengan durasi terpanjang. Pekerjaan repair dapat dilaksanakan pada titik dan lokasi yang berbeda serta berjalan overlap dengan pekerjaan struktur utama sehingga tidak menunjukkan keterlambatan proyek secara keseluruhan. Total estimasi biaya pekerjaan perbaikan berdasarkan analisis harga satuan adalah sebesar Rp40.209.591,30 atau 0,38% dari nilai pekerjaan struktur dan 7,60% dari nilai retensi pekerjaan struktur. Kata Kunci: Perbaikan Beton, Epoxy injection, Patching, Coating, Durasi Perbaikan, Biaya Perbaikan
| Item Type: | Thesis (S1) |
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| NIM/NIDN Creators: | 41122010055 |
| Uncontrolled Keywords: | Perbaikan Beton, Epoxy injection, Patching, Coating, Durasi Perbaikan, Biaya Perbaikan |
| Subjects: | 600 Technology/Teknologi > 620 Engineering and Applied Operations/Ilmu Teknik dan operasi Terapan > 624 Civil Engineering/Teknik Sipil 600 Technology/Teknologi > 650 Management, Public Relations, Business and Auxiliary Service/Manajemen, Hubungan Masyarakat, Bisnis dan Ilmu yang Berkaitan > 658 General Management/Manajemen Umum > 658.9 Construction Management/Manajemen Konstruksi |
| Divisions: | Fakultas Teknik > Teknik Sipil |
| Depositing User: | khalimah |
| Date Deposited: | 28 Sep 2026 11:02 |
| Last Modified: | 28 Sep 2026 11:02 |
| URI: | http://repository.mercubuana.ac.id/id/eprint/104142 |
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