31st Annual Conference of the International Group for Lean Construction (IGLC 31) - Lille, France - 2023

https://doi.org/10.24928/2023/0149

Promoting the IPD Delivery Method in Construction Projects: A BIM-Based Smart Contract Approach

Mohamed Assaf1, Lena Salami2, Diana Salhab3 & Ahmed Hammad4

1Ph.D. Student, Hole School of Construction Engineering, University of Alberta, Edmonton, Canada, [email protected], https://orcid.org/0000-0002-6298-8531
2MEng Student, Hole School of Construction Engineering, University of Alberta, Edmonton, Canada, [email protected]
3Ph.D. Student, Hole School of Construction Engineering, University of Alberta, Edmonton, Canada, [email protected], https://orcid.org/0000-0003-0307-6193
4Associate Professor, Hole School of Construction Engineering, University of Alberta, Edmonton, Canada, [email protected], https://orcid.org/0000-0001-6411-418

Abstract

The adoption of integrated project delivery (IPD) provides several advantages over traditional delivery methods, such as shorter schedules, efficient communication, and higher performance quality. However, its implementation is constantly hindered by many barriers. Existing studies on IPD barriers are limited to quantifying and addressing such obstacles. Additionally, hardly any studies have addressed the potential of advanced technologies in exploiting the adoption of IPD projects. Thus, this study presents an automated system that integrates blockchain, smart contracts, and BIM technologies to facilitate the implementation of IPD projects. Hyperledger Fabric and chaincodes are used to develop the blockchain network in accordance with 4D and 5D BIM models. The developed system simplifies various financial transactions throughout different phases of the IPD project implementation. The system allows non-owner participants to submit requests and review transaction records with the aim of minimizing possible conflicts. The methodology is evaluated by testing it on a real-life case study. The case study is modeled using BIM tools, and the corresponding blockchain network and smart contracts are developed. The findings prove the capability of the developed system to provide a secure and trustworthy platform for managing IPD transactions without the need for third-party involvement.

Keywords

Integrated project delivery (IPD), smart contracts, BIM, blockchain, construction projects.

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Reference

Assaf, M. , Salami, L. , Salhab, D. & Hammad, A. 2023. Promoting the IPD Delivery Method in Construction Projects: A BIM-Based Smart Contract Approach , Proceedings of the 31st Annual Conference of the International Group for Lean Construction (IGLC31) , 69-80. doi.org/10.24928/2023/0149

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