Real-Time Optimization of Precast Concrete Component Transportation and Storage
Real-Time Optimization of Precast Concrete Component Transportation and Storage
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DOI：
10.1155/2020/5714910
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发表时间：
2020-03-19
影响因子：
1.8
通讯作者：
Jin, Rui
中科院分区：
文献类型：
--
作者：
Liu, Donghai;Xin, Li;Jin, Rui
预制混凝土结构的施工涉及许多不同类型的预制混凝土（PC）组件。PC构件的运输、储存、吊装安排不当，可能导致PC构件不必要的搬迁，延误施工进度。针对这一问题，提出了一种基于实时调度与跟踪的PC机部件运输与存储动态优化方法。从4D建筑信息模型（BIM）中提取实时时间表，并通过集成全球导航卫星系统（GNSS）和射频识别（RFID）技术的跟踪系统跟踪整个运输过程中PC组件的位置。建立了基于实时施工进度的运输优化模型，得到了合理的运输方案。提出了构件储存和吊装的循环作业网络（CYCLONE）仿真模型，用于计算现场运输时间。提出了考虑实时运输信息的仓储优化模型，对堆场的仓储方式和仓储位置进行优化。算例表明，该方法可将现场运输时间缩短37%，有效控制搬迁时间。
The construction of prefabricated concrete structures involves many different types of precast concrete (PC) components. Improper arrangements of the transportation, storage, and hoisting of the PC components could lead to unnecessary relocation of PC components, causing a delay in construction progress. To address this problem, this paper presented a dynamic optimization method for PC component transportation and storage based on real-time scheduling and tracking. The real-time schedule can be extracted from a 4D building information model (BIM), and the position of PC components during the whole transportation process is tracked by a proposed tracking system which integrates the global navigation satellite system (GNSS) and the radio frequency identification (RFID) technology. A transportation optimization model was built to obtain a reasonable transportation plan based on real-time construction progress. A cyclic operation network (CYCLONE) simulation model for component storing and hoisting was proposed to calculate the on-site transportation time. A storage optimization model was proposed by considering the real-time transportation information to optimize the storage mode and storage position in the yard. The proposed models were solved in the context of a case study, which indicates that our method can reduce the on-site transportation time by 37% and effectively control the relocation times.