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Abdul Nabi, M and El-adaway, I H (2022) A Proactive Risk Assessment Framework to Maximize Schedule Benefits of Modularization in Construction Projects. Journal of Construction Engineering and Management, 148(07).
Ahmad, R, Nauman, S and Malik, S Z (2022) Tyrannical Leader, Machiavellian Follower, Work Withdrawal, and Task Performance: Missing Links in Construction Projects. Journal of Construction Engineering and Management, 148(07).
Assaad, R H, El-adaway, I H, Hastak, M and LaScola Needy, K (2022) Quantification of the State of Practice of Offsite Construction and Related Technologies: Current Trends and Future Prospects. Journal of Construction Engineering and Management, 148(07).
Assaad, R H, El-adaway, I H, Hastak, M and LaScola Needy, K (2022) The Impact of Offsite Construction on the Workforce: Required Skillset and Prioritization of Training Needs. Journal of Construction Engineering and Management, 148(07).
Brandalise, F M P, Formoso, C T and Viana, D D (2022) Development of a Typology for Understanding Visual Management Concepts and Their Relationships. Journal of Construction Engineering and Management, 148(07).
Chen, L, Zhang, J and Peng, W (2022) Research on the Hierarchical Discrete Time-Cost Trade-Off Problem for Program. Journal of Construction Engineering and Management, 148(07).
Jayaraj, S, Doerfel, M L and Williams, T (2022) Clique to Win: Impact of Cliques, Competition, and Resources on Team Performance. Journal of Construction Engineering and Management, 148(07).
Khan, M, Khalid, R, Anjum, S, Tran, S V and Park, C (2022) Fall Prevention from Scaffolding Using Computer Vision and IoT-Based Monitoring. Journal of Construction Engineering and Management, 148(07).
Kim, S, Hwang, S and Son, J (2022) Safety Management Guidelines for Precast Concrete Production Plants Using Importance-Performance Analysis. Journal of Construction Engineering and Management, 148(07).
Li, Y and Ning, Y (2022) Mitigating Opportunistic Behaviors in Consulting Projects: Evidence from the Outsourced Architectural and Engineering Design. Journal of Construction Engineering and Management, 148(07).
Li, Y, Soomro, M A, Khan, A N, Han, Y and Xue, R (2022) Impact of Ethical Leadership on Employee Turnover Intentions in the Construction Industry. Journal of Construction Engineering and Management, 148(07).
Li, Y, Wang, J, Cao, L, Wei, D and Wang, Y (2022) Three-Step Mathematical Model for Optimizing Rebar Cutting-Stock with Practical Application. Journal of Construction Engineering and Management, 148(07).
- Type: Journal Article
- Keywords:
- ISBN/ISSN: 0733-9364
- URL: https://doi.org/10.1061/(ASCE)CO.1943-7862.0002283
- Abstract:
Theory of operations research is applied in this paper. The minimum total cost of steel reinforcement work was used as the objective function, and a three-step mathematical model to optimize the rebar cutting-stock was developed for building the finished rebars. Model I was applied to determine the whole raw material rebars that build the finished rebar. Models II and III were then applied to obtain the cut rebars needed to form the remaining rebar length of the finished rebar. The optimization results of the three-step model were combined to obtain a rebar cutting-stock list and method. Note the following results: (1) Considering comprehensively the effects of labor and material costs in the models led to the least rebar waste and number of welding spots, and thus the minimum total cost was reached. (2) In Model I, the minimum of cost sum of the rebar waste and welding spot count was taken as the objective to use the longer whole rebars first to minimize cutting and welding operations, and reducing the remaining rebar count reduced the subsequent calculation workload of Models II and III. (3) In model II, a constraint that every rebar section length be restricted to three nonoverlapping cases was imposed, which ensured that welding spots were not located in the midspan of a finished rebar. (4) In the practical case study considered, the rebar waste rate was 0.44%, and the finished rebars including 1 or 2 welding spots accounted for 90% of all finished rebars, which shows that the overall number of welding spots was small. The optimization not only clearly saved the rebar material cost but also decreased the labor cost of cutting and welding.
Mahmoud, S, Hussein, M, Zayed, T and Fahmy, M (2022) Multiobjective Optimization Model for the Life Cycle Cost-Sustainability Trade-Off Problem of Building Upgrading Using a Generic Sustainability Assessment Tool. Journal of Construction Engineering and Management, 148(07).
Martínez Fernández, P, Villalba Sanchís, I, Insa Franco, R and Yepes, V (2022) Slab Track Optimization Using Metamodels to Improve Rail Construction Sustainability. Journal of Construction Engineering and Management, 148(07).
Mucheti, A S and Albuquerque, P J R d (2022) Influence of Execution Speed on Displacements of Soil-Nailed Structures with Vertical Face in Urban Areas. Journal of Construction Engineering and Management, 148(07).
Shi, M, Wang, J, Li, Q, Cui, B, Guan, S and Zeng, T (2022) Accelerated Earth-Rockfill Dam Compaction by Collaborative Operation of Unmanned Roller Fleet. Journal of Construction Engineering and Management, 148(07).
Shi, Q, Chen, X, Xiao, C and Han, Y (2022) Network Perspective in Megaproject Management: A Systematic Review. Journal of Construction Engineering and Management, 148(07).
Spearing, L A, Bakchan, A, Hamlet, L C, Stephens, K K, Kaminsky, J A and Faust, K M (2022) Comparing Qualitative Analysis Techniques for Construction Engineering and Management Research: The Case of Arctic Water Infrastructure. Journal of Construction Engineering and Management, 148(07).
Wang, X, Arditi, D and Ye, K (2022) Coupling Effects of Economic, Industrial, and Geographical Factors on Collusive Bidding Decisions. Journal of Construction Engineering and Management, 148(07).
Xiao, B, Wang, Y and Kang, S (2022) Deep Learning Image Captioning in Construction Management: A Feasibility Study. Journal of Construction Engineering and Management, 148(07).
Zhang, M and Ge, S (2022) Vision and Trajectory–Based Dynamic Collision Prewarning Mechanism for Tower Cranes. Journal of Construction Engineering and Management, 148(07).
Zhou, T, Zhu, Q, Shi, Y and Du, J (2022) Construction Robot Teleoperation Safeguard Based on Real-Time Human Hand Motion Prediction. Journal of Construction Engineering and Management, 148(07).