安全英文文献6.pdf

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Robust Dual-Level Optimization Framework for Resource-Constrained Multiproject Scheduling for a Prefabrication Facility in Construction . 1 2 d Jing Liu, S.M.ASCE ; and Ming Lu, P.Eng., M.ASCE e v r e s e r s t h Abstract: This research is intended to improve the current practice of resource planning and project scheduling at a prefabrication facility in g i r l l construction, where engineered systems or components of large size and heavy weight are fabricated for multiple concurring projects with a ; y limited workplace and storage areas. A dual-level multiproject scheduling framework is proposed for optimizing resource allocation decisions l n o e and minimizing resource dependencies among multiple concurring prefabrication projects. A resource use robustness index is defined to s u quantitatively gauge interproject resource use dependencies in derived multiproject schedules. How to apply the proposed framework is l a n demonstrated through a case study consisting of three projects sharing limited resources. Further, based on the same case study, the proposed o s r e framework is contrasted against (1) a single-project scheduling approach and (2) an open-source multiproject scheduling platform. Compared p r with those two methods, the schedule generated by the proposed dual-level multiproject scheduling method is the most robust in terms of o F E. achieving resource work continuity on individual projects. The proposed research provides production managers of fabrication facilities C S or project managers of prefabrication p

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