制約理論在大型營建工地物料運籌之應用-以TFT-LCD建廠鋼筋材料為例

Abstract

鋼筋材料目前是營建專案中，成本比例佔很高的貨料，現行建廠專案的鋼筋材料供應方式,多是在材料運出工廠，到達工地的臨時儲存/加工場時，即算是完成交易，本研究主要是將TOC的〝Buy-In〞的觀念，導入鋼筋供應鏈中，請供應商到工地來建庫存，實際加工成型後，再運入真正工區實質施工，才能算是完成交易，並找到一個Win-Win Solution，以達到營造商所期望的「不建庫存，要貨有貨」的目標。另外亦將傳統的鋼筋供貨/存貨方式與TOC的DP模型，進行分析比較，可以證明用DP的VMI模式，更能有效管理鋼筋材料。

Rebar predominate a more and more large proportion of the total cost in the construction site. Current method of the rebar providing is that the supplier pushed their material to construction company’s working/stock site and then the transaction is completed. Therefore I make a research about the rebar supply chain to change the original condition. The first one is to apply the “TOC Buy-In” concept into the rebar supply chain. This research set up a new model that the rebar supplier prepare inventory nearby the construction site after the rebar is carried into real site to use and then the transaction is completed. Trying to find a “Win-Win” solution to approach the target “No Inventory But Available” we expected. The second is comparing the traditional way and the demand-pull method we have a conclusion that TOC demand pull and buffer management has claimed a good solution to solve problems and proved outperform the original way.