“…Therefore, it is confirmed that there are not many articles directly dealing with this topic. As shown in Table 5, 37 articles were published in the journal [3,4,6,[8][9][10][11][12]63, and 11 articles were published in peer reviewed conference publication [7,55,62,71,[111][112][113][114][115][116][117]. The rest have three dissertations [5,118,119] and one book chapter [120].…”
Section: Descriptive Analysismentioning
confidence: 99%
“…[3,6,55,84,[86][87][88][89]91,95,97,98,103,105,108,110,111,114,119,120] Quantity take-off Rebar CWM algorithm is connected to the QTO task and progress. [3,5,6,[85][86][87]90,91,98,103,107,108,111,113,115,116] Rebar production…”
Section: Drawing Workmentioning
confidence: 99%
“…After completing the bar bending schedule, the work is performed to combine cutting patterns using CWM algorithm. [6,8,87,88,91,92,[94][95][96]99,107,111,112,116] Rebar placement…”
Section: Drawing Workmentioning
confidence: 99%
“…CWM algorithm has been widely applied to rebar production stages, including cutting and bending [6,8,87,88,91,92,[94][95][96]99,107,111,112,116]. This is because the bar-bending schedule is prepared first before supplying rebars to the site, the cutting list is prepared, and the bar combination is performed by cutting patterns using the list.…”
Section: Drawing Workmentioning
confidence: 99%
“…In this case, there is a problem that the CWM effect is not greater than global search. BSA has been confirmed to have been adopted by two articles, as shown in Table 8 [10,116].…”
Rebar, the core resource of reinforced concrete structures, generates more carbon dioxide per unit weight than any other construction resource. Therefore, reducing rebar cutting wastes greatly contributes to the reduction of greenhouse gas (GHG). Over the past decades, many studies have been conducted to minimize cutting wastes, and various optimization algorithms have been proposed. However, the reality is that about 3 to 5% of cutting wastes are still generated. In this paper, the trends in the research on cutting waste minimization (CWM) of rebar for sustainable work are reviewed in a systematic method with meta-analysis. So far, the literature related to cutting waste minimization or optimization of rebar published has been identified, screened, and selected for eligibility by Preferred Reporting Items for Systematic Reviews and Meta-Analyses, and the final 52 records have been included in quantitative and qualitative syntheses. Review by meta-analysis was conducted on selected literatures, and the results were discussed. The findings identified after reviewing the literature are: (1) many studies have performed optimization for the market length, making it difficult to realize near-zero cutting wastes; (2) to achieve near-zero cutting wastes, rebars must be matched to a specific length by partially adjusting the lap splice position (LSP); (3) CWM is not a one-dimensional problem but an n-dimensional cutting stock problem when considering several rebar combination conditions; and (4) CWM should be dealt with in terms of sustainable value chain management in terms of GHG contributions.
“…Therefore, it is confirmed that there are not many articles directly dealing with this topic. As shown in Table 5, 37 articles were published in the journal [3,4,6,[8][9][10][11][12]63, and 11 articles were published in peer reviewed conference publication [7,55,62,71,[111][112][113][114][115][116][117]. The rest have three dissertations [5,118,119] and one book chapter [120].…”
Section: Descriptive Analysismentioning
confidence: 99%
“…[3,6,55,84,[86][87][88][89]91,95,97,98,103,105,108,110,111,114,119,120] Quantity take-off Rebar CWM algorithm is connected to the QTO task and progress. [3,5,6,[85][86][87]90,91,98,103,107,108,111,113,115,116] Rebar production…”
Section: Drawing Workmentioning
confidence: 99%
“…After completing the bar bending schedule, the work is performed to combine cutting patterns using CWM algorithm. [6,8,87,88,91,92,[94][95][96]99,107,111,112,116] Rebar placement…”
Section: Drawing Workmentioning
confidence: 99%
“…CWM algorithm has been widely applied to rebar production stages, including cutting and bending [6,8,87,88,91,92,[94][95][96]99,107,111,112,116]. This is because the bar-bending schedule is prepared first before supplying rebars to the site, the cutting list is prepared, and the bar combination is performed by cutting patterns using the list.…”
Section: Drawing Workmentioning
confidence: 99%
“…In this case, there is a problem that the CWM effect is not greater than global search. BSA has been confirmed to have been adopted by two articles, as shown in Table 8 [10,116].…”
Rebar, the core resource of reinforced concrete structures, generates more carbon dioxide per unit weight than any other construction resource. Therefore, reducing rebar cutting wastes greatly contributes to the reduction of greenhouse gas (GHG). Over the past decades, many studies have been conducted to minimize cutting wastes, and various optimization algorithms have been proposed. However, the reality is that about 3 to 5% of cutting wastes are still generated. In this paper, the trends in the research on cutting waste minimization (CWM) of rebar for sustainable work are reviewed in a systematic method with meta-analysis. So far, the literature related to cutting waste minimization or optimization of rebar published has been identified, screened, and selected for eligibility by Preferred Reporting Items for Systematic Reviews and Meta-Analyses, and the final 52 records have been included in quantitative and qualitative syntheses. Review by meta-analysis was conducted on selected literatures, and the results were discussed. The findings identified after reviewing the literature are: (1) many studies have performed optimization for the market length, making it difficult to realize near-zero cutting wastes; (2) to achieve near-zero cutting wastes, rebars must be matched to a specific length by partially adjusting the lap splice position (LSP); (3) CWM is not a one-dimensional problem but an n-dimensional cutting stock problem when considering several rebar combination conditions; and (4) CWM should be dealt with in terms of sustainable value chain management in terms of GHG contributions.
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