Abstract

Construction projects are often unique, time-limited and require a high degree of customization by involving a significant number of Engineer-to-Order (ETO) components. Usually, ETO construction supply chains are composed by a fabrication part off-site and the installation part on-site where different supply chains have to be merged. Generally, many problems are identified during construction on-site and often in a late phase when recovering actions cannot be applied anymore. As a result, construction projects frequently face delays and budget overruns. Owing to these considerations, the paper proposes (i) a framework able to identify the losses and causes of ETO construction supply chains and (ii) a novel metric named Overall Construction Productivity (OCP) supporting the quantification of the overall impact of losses and the implementation of improvement actions. The proposed framework and metric were applied and validated in a medium-sized ETO façade supplier company and a hospital construction project.

摘要

建筑项目通常是独特的、有时间限制的，并且需要通过涉及大量按订单设计 (ETO) 组件进行高度定制。通常，ETO 施工供应链由场外制造部分和现场安装部分组成，其中不同的供应链必须合并。通常，许多问题是在现场施工过程中发现的，并且通常是在无法再应用恢复措施的后期阶段。因此，建设项目经常面临延误和预算超支。由于这些考虑，该文件提出了（i）一个能够识别 ETO 建设供应链的损失和原因的框架，以及（ii）一个名为总体建设生产力（OCP）的新指标，支持量化损失的整体影响和实施改进措施。提议的框架和指标在一家中型 ETO 幕墙供应商公司和一个医院建设项目中得到应用和验证。