Value propositions for set-based design of reinforced concrete structures

Kristen Parrish, John Michael Wong, Iris D. Tommelein, Bozidar Stojadinovic

Research output: Chapter in Book/Report/Conference proceedingConference contribution

7 Scopus citations

Abstract

Reinforced concrete is used in capital facilities in all sectors of the construction industry. Numerous specialists are involved in its design and supply chain. However, reinforcing steel (rebar) configurations are typically specified by structural engineers relatively early on in the project, often without the benefit of input from project stakeholders such as rebar detailers, fabricators, and placers. In current design practice, using tacit knowledge of structural performance as well as construction expertise, structural engineers select a rebar configuration that is optimal from their perspective, given the project constraints. The adoption of new design methodologies, such as performance-based design and set-based design, affords opportunities for use of the knowledge of downstream project stakeholders in structural design. Value propositions relate, e.g., physical product characteristics, relative dollar, or time 'costs' to parameters that define value for different project stakeholders. They can then be used to assist project teams in developing mutual understanding while gauging the merits of different sets of alternatives, making tradeoffs, and narrowing sets of design alternatives. Industry participants in this research have helped to develop such value propositions. This paper presents a value proposition of a rebar placer, that relates rebar diameters to labour productivity rates, and these can be translated into placement costs. Proof-of-concept is delivered of the use of this value proposition in set-based design of a reinforced concrete shear wall.

Original languageEnglish (US)
Title of host publicationProceedings of IGLC16
Subtitle of host publication16th Annual Conference of the International Group for Lean Construction
Pages495-506
Number of pages12
StatePublished - Dec 1 2008
Externally publishedYes
Event16th Annual Conference of the International Group for Lean Construction, IGLC16 - Manchester, United Kingdom
Duration: Jul 16 2008Jul 18 2008

Publication series

NameProceedings of IGLC16: 16th Annual Conference of the International Group for Lean Construction

Other

Other16th Annual Conference of the International Group for Lean Construction, IGLC16
CountryUnited Kingdom
CityManchester
Period7/16/087/18/08

Keywords

  • Constructability
  • Cost
  • Design methodology
  • Lean construction
  • Performance-based design
  • Rebar
  • Reinforced concrete
  • Set-based design
  • Stakeholder value
  • Value proposition

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction
  • Architecture

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  • Cite this

    Parrish, K., Wong, J. M., Tommelein, I. D., & Stojadinovic, B. (2008). Value propositions for set-based design of reinforced concrete structures. In Proceedings of IGLC16: 16th Annual Conference of the International Group for Lean Construction (pp. 495-506). (Proceedings of IGLC16: 16th Annual Conference of the International Group for Lean Construction).