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Uncertain Time-Resource-Cost Trade-Off Models for Construction Project Schedule
KSCE Journal of Civil Engineering ( IF 2.2 ) Pub Date : 2021-05-26 , DOI: 10.1007/s12205-021-1798-7
Changming Hu , Juan Wang , Yuan Mei

Construction project schedule is to bring the completion time and the total cost into balance by allocating resources. In order to shorten the completion time and decrease the total cost as far as possible, three time-resource-cost trade-off models for construction project under uncertain environment, including expected value (E-V) model, chance-constrained (C-C) model and chance maximization (C-M) model, were built by using uncertain theory. The duration time of activities, the allocation time of material resources and human resources are considered as uncertain variables in the three models. The E-V model was to shorten the expected completion time under the chance constraint of cost. The C-C model was to obtain the minimum completion time under the chance constraints of completion time and cost. The C-M model was to maximize the chance that the completion time is not lager than the due date under the chance constraint of cost. For the convenience of calculation, the three models were changed into crisp equivalent form. A practical case study was provided to show the application process of three models and the results can be obtained by using the genetic algorithm. Finally, some extended construction project scheduling models are introduced.



中文翻译:

建设项目进度的不确定时间-资源-成本权衡模型

建设项目进度计划是通过资源配置,使完工时间和总成本达到平衡。为了尽可能缩短完工时间,降低总成本,构建了不确定环境下建设项目的三种时间-资源-成本权衡模型,包括期望值(EV)模型、机会约束(CC)模型和机会最大化(CM)模型,是利用不确定理论建立的。活动的持续时间、物质资源的配置时间和人力资源在三个模型中被视为不确定变量。EV 模型是在成本的机会约束下缩短预期完成时间。CC模型是在完成时间和成本的机会约束下获得最小完成时间。CM 模型是在成本的机会约束下最大化完成时间不大于到期日的机会。为计算方便,将三个模型改为等价形式。提供了一个实际案例研究,展示了三种模型的应用过程,结果可以通过遗传算法得到。最后,介绍了一些扩展的建设项目调度模型。

更新日期:2021-07-13
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