Publications / 2020 Proceedings of the 37th ISARC, Kitakyushu, Japan

Constructability: The Prime Target in Value Engineering for Design Optimization

Arun Sekhar and Uma Maheswari
Pages 417-424 (2020 Proceedings of the 37th ISARC, Kitakyushu, Japan, ISBN 978-952-94-3634-7, ISSN 2413-5844)

An ideal Design-Construction Interface is assumed in the decision making process of initiation and planning. The uniqueness, site conditions and contingencies cannot be envisaged and incorporated in its entirety in all projects. Constructability in resonance to the appropriate technology becomes paramount in deciding the material, structural forms and construction methodology. The construction industry is gradually evolving to a manufacturing and product delivery process where design for Manufacturability and Assembly takes precedence. Optimization of targeted values viz logistics, manufacturability, assembly, maintenance, lifecycle cost and ergonomics becomes critical to ensure smooth execution of the Project. The data collected from a pre cast construction project is analysed to map the degree of ease in Design-Construction interface and compared with a framed structure to draw parallels with respect to constructability as a target in value engineering. The objective of the study is to examine the components of constructability in Design Process to optimize effort and resources. Target Value Design gives the stakeholders more rationale inputs for monitoring and decision making. The study attempts to predict the future of manufacturability and constructability in construction where smooth assembly with minimum labour is essential for value addition. The bottom up approach of new policy initiatives and better communication between stakeholders promise more refined designs in future where technology will be pushed to achieve design optimization.

Keywords: Constructability; Design Optimization; Value Engineering; Design-Build; Target Value Design; Manufacturability; Assembly