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Home > Publications > International Concrete Abstracts Portal
The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.
Title: Dimensional Tolerance Control for Prefabricated Building Components
Author(s): Peng Liu, Ying Chen, Xiaoyong Luo, Zhiwu Yu, and Hao Long
Publication: Structural Journal
Appears on pages(s): 101-114
Keywords: component; deviation; dimension; prefabricated construction; tolerance
Abstract:Tolerance is significant for the dimensional precision of prefabricated components. This paper proposes a novel dimensional tolerance control model for prefabricated components that is based on their qualification rate. The distributions of the dimensions of multiple prefabricated components and the partition form of tolerance are also investigated. Component dimensions tended to be normally distributed, and probability plots indicate that the cumulative percentage between prefabricated components and a normal distribution was linear. Prefabricated component dimensions tended to be larger than their designed values due to the swelling of templates during concrete casting. The proposed dimensional tolerance control model was verified by on-site testing. Criteria and methods for applying tolerance partition forms to prefabricated components are put forward through comparison of various standards. The approach overcomes the deficiencies of traditional methods of tolerance control, which are based on experience.
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