Osaka Kansai Expo Construction Process Design for the Grand Ring in the Pw West Construction Area

This paper explains an overview of the construction techniques and production improvement efforts applied to the Grand Ring of the Osaka-Kansai Expo: (1) In the timber work, supply chain management was implemented to realize “Just in Time” construction; (2) In the foundation rebar work, new method to prevent the mixing of multiple tasks was developed; (3) In the timber construction, scaffolding-free construction was implemented, and conducted by steel frame construction workers. (4) BIM and digital fabrication were incorporated referring to the workers among others. Particularly, user-friendly process management systems were developed.