Design for X: An Iterative Approach for Design Optimization in Pre-engineered and Pre-cast Construction

Abstract

Inadequate planning and poor stake holder management are considered as root cause to delays and cost overruns in construction projects. Compartmentalized working of various stakeholders prevents smooth flow of information to achieve intended design–construction interface. The construction industry is gradually evolving to a manufacturing and product delivery process where design for manufacturability and assembly takes precedence. Design for a specific target value according to the utility has been an evolutionary process. The objective of the study is to look into the relevance and effectiveness of an iterative approach in design process to streamline the target values to optimize effort and resources in employing pre-engineered and pre-cast technology. The study also examines the various factors influencing the smooth interface from design to construction and critically examine the bottlenecks. Design for X (DfX) approach gives the stakeholders more rationale inputs for monitoring and decision making in a more controlled environment of manufactured construction. The study attempts to predict the future of manufacturability in construction where smooth assembly with automation is getting preference over conventional cast-in situ methodology. The bottom up approach of new policy initiatives and better communication between stakeholders promise more refined designs in the future where technology will be pushed to align with lean construction principles which will form part of deliverables.