Integrated scheduling and batch ordering for construction project

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• 作者：Fang Fu
• 关键词：Project scheduling ; Batch ordering ; Harmony search ; Genetic algorithm ; Integration management
• 刊名：Applied Mathematical Modelling
• 出版年：15 January, 2014
• 年：2014
• 卷：38
• 期：2
• 页码：784-797
• 全文大小：477 K

文摘

Multi-Mode Resource Constrained Project Scheduling Problem and material batch ordering for construction project are integrated to help project manager consider various trade-offs among several costs, such as renewable resources鈥?cost, material price, ordering cost, back-ordering cost, inventory holding cost and reward/penalty for early/late project completion. Therefore, we prove a mixed integer programming model and impel to calculate inventory holding cost and back order cost in objective function. Moreover, a hybrid algorithm combined adapted harmony search and genetic algorithm is proposed correspondingly. In order to inherit elitist solution and maintain population鈥檚 diversity simultaneously, we add a selection operator when the harmony memory is initialized and modify the replacement operator based on distance. Besides, genetic algorithm is adopted based on a 鈥?12鈥?coding scheme. Finally, algorithm and model performance is presented and several project instances are provided with different network structures and realizations to discuss the factors on total cost.