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

https://doi.org/10.24928/2023/0151

Improving Productivity in Ventilation and Plumbing Installations by Developing Designs

Tuomas Valkonen1 & Olli Seppänen2

1Doctoral Candidate, Department of Civil Engineering, Aalto University, Espoo, Finland, [email protected], https://orcid.org/0000-0002-2710-5190
2Associate Professor, Department of Civil Engineering, Aalto University, Espoo, Finland, [email protected], http://orcid.org/0000-0002-2008-5924

Abstract

Quality of designs is one of the most important factors impacting the productivity of mechanical, electrical, and plumbing work. Previous research does not investigate problems with design in detail. This research aimed to identify design aspects where additional investments in design would increase productivity in installation. For this purpose, we selected three construction sites to identify deviations from designs, and interview installers on identified deviations and buildability in general. Observed deviations were divided into three main categories based on the cause of deviation: insufficient space reservations, missing model components, and buildability. Based on our findings we suggest five methods for developing designing: 1. BIM should be used in designing. 2. BIM coordination should include the assessment of buildability. 3. Better use of BIM requires high level of detail and high accuracy in all design models. 4. Contractors knowledge on buildability, schedule, and order of installation should be utilized in designing. 5. Optimizing material cost should be part of designing.

Keywords

BIM, collaboration, assembly, HVAC, design

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Reference

Valkonen, T. & Seppänen, O. 2023. Improving Productivity in Ventilation and Plumbing Installations by Developing Designs, Proceedings of the 31st Annual Conference of the International Group for Lean Construction (IGLC31) , 1061-1071. doi.org/10.24928/2023/0151

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