Analisis Waste Pada Pekerjaan Pembesian

Teras, Angelina Dwini (2025) Analisis Waste Pada Pekerjaan Pembesian. Masters thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Penelitian ini bertujuan untuk menganalisis pemborosan (waste) yang terjadi dalam pekerjaan pembesian kolom beton bertulang pada proyek pembangunan gedung bertingkat. Studi dilakukan pada pabrikasi besi proyek Tower 3 ITS di Surabaya, sebuah gedung bertingkat dengan 14 lantai. Analisis difokuskan pada identifikasi aktivitas yang menimbulkan pemborosan dan solusi perbaikan disusun berdasarkan pendekatan 3S—Reduce, Reuse, Recycle—untuk meminimalkan dampak waste. Data primer dikumpulkan melalui observasi langsung di lapangan untuk meninjau langsung detail pekerjaan pembesian dan data sekunder diperoleh dari dokumen proyek. Hasil penelitian menunjukkan bahwa tipe waste terbesar dalam pekerjaan pembesian adalah waiting (26 poin), unnecessary motion (24 poin), dan defects (17 poin) dari total 58 aktivitas waste yang teridentifikasi, dimana setiap aktivitas yang memunculkan waste mungkin untuk memiliki lebih dari satu waste. Penyebab utama waste diidentifikasi berasal dari material, cuaca, dan produktivitas, dengan material menjadi faktor terbesar. Waste cost berdasarkan rebar schedule dari material sisa potongan besi tulangan pada pekerjaan pembesian kolom dari lantai 1 hingga 14 mencapai Rp569.300.414,62. Mitigasi dirancang untuk mengurangi pemborosan material berdasarkan prinsip reduce, reuse, dan recycle. Strategi meliputi perencanaan material yang akurat, penggunaan ulang potongan besi tulangan untuk elemen non-struktural, dan daur ulang limbah material melalui kolaborasi dengan fasilitas daur ulang. Pendekatan ini bertujuan untuk meminimalkan pemborosan dan meningkatkan efisiensi material pada proyek konstruksi.
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Waste in construction projects often impacts time and cost efficiency. This study aims to analyze waste occurring in the rebar work of reinforced concrete columns in high-rise building projects using the Value Stream Mapping (VSM) method. The study was conducted at the rebar fabrication site for the Tower 3 ITS project in Surabaya, a 14-story high-rise building. VSM was utilized to provide a visualization of the work process based on the identification of detailed rebar activities. The analysis focused on identifying activities that generate waste, with improvement solutions developed using the 3S approach—Reduce, Reuse, and Recycle—to minimize the impact of waste. Primary data were collected through direct field observation to examine the details of rebar work, while secondary data were obtained from project documentation. The research findings indicate that the largest types of waste in rebar work are waiting (26 points), unnecessary motion (24 points), and defects (17 points), out of a total of 58 waste activities identified. Each activity that generates waste may be associated with more than one type of waste. The primary causes of waste were identified as material, weather, and productivity, with material being the most significant factor. The waste cost, based on the rebar schedule from rebar cutoffs in column work for floors 1 to 14, amounts to IDR 569,300,414.62. Mitigation measures were designed to reduce material waste based on the principles of reduce, reuse, and recycle. The strategies include accurate material planning, reusing rebar cutoffs for non-structural elements, and recycling material waste through collaboration with recycling facilities. This approach aims to minimize waste and enhance material efficiency in construction projects.

Item Type:	Thesis (Masters)
Uncontrolled Keywords:	Waste Konstruksi, Reduce Reuse Recycle, Pembesian, Construction Waste, Rebar Work
Subjects:	T Technology > TA Engineering (General). Civil engineering (General) T Technology > TA Engineering (General). Civil engineering (General) > TA660.C6 Columns T Technology > TH Building construction T Technology > TH Building construction > TH438 Construction industry--Management. Project management. T Technology > TS Manufactures > TS176 Manufacturing engineering. Process engineering (Including manufacturing planning, production planning) T Technology > TS Manufactures > TS183 Manufacturing processes. Lean manufacturing.
Divisions:	Faculty of Civil, Planning, and Geo Engineering (CIVPLAN) > Civil Engineering > 22101-(S2) Master Thesis
Depositing User:	Angelina Dwini Teras
Date Deposited:	01 Feb 2025 02:27
Last Modified:	01 Feb 2025 02:27
URI:	http://repository.its.ac.id/id/eprint/117270

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