Bhatia, A; Moselhi, O and Han, S (2025) Hybrid optimization approach for scheduling in panelized construction manufacturing. Journal of Construction Engineering and Management, 151(8): 04025107, ISSN 0733-9364
Abstract
Panelized construction refers to a building method where structural components such as wall, floor, and roof panels are prefabricated in a factory environment and then transported to the construction site for assembly. Panelized construction provides several advantages, such as improved productivity, reduced labor requirements, and enhanced quality. However, one of the significant challenges in panelized construction manufacturing has to do with planning and scheduling the sequences of panels for multiple projects based on high degree of design customization. This customization results in differing processing times for panels at each workstation, in turn leading to an imbalanced production line, thereby extending the makespan. To address these issues, this paper proposes a planning and scheduling method to solve the panelized construction manufacturing scheduling problem by identifying the most suitable algorithm (comparing genetic algorithm, simulated annealing, and hybrid genetic algorithm simulated annealing). The proposed method provides an optimal sequence of panels for prefabrication with minimum makespan for multiple projects. As a result, the hybrid optimization reduces makespan to 105.63 h compared to those generated by a genetic algorithm (138.08 h) and simulated annealing (108.06 h).
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | hybrid optimization method; panelized construction; planning; scheduling |
| Index terms: | scheduling, genetic algorithm, construction site, simulated annealing, customization, productivity, labour requirement, roof, prefabrication |
| Subjects: | algorithms, building construction, construction manufacturing, operations research, design practice, management, work location |
| Topics: | Time Control, Site Management, Digital Applications, Design Practice, Construction Technology, Business Strategy |
| Descriptive scope: | 3 PCA |
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