Abstract
In the purchase of a constructed facility, the buyer values those components that are in place when the user occupies the building. A task of placing or assembling such a component is therefore “value-adding” (VA). This paper presents a method to classify construction tasks as VA, contributory, or ineffective to assess the value-added by individual activities, as well as the aggregate value-added effectiveness of the construction plan. Current approaches to evaluate construction operations are based on limited examples rather than general rules. The proposed method presents a list of nine rules that are applicable to various construction trades. This paper provides for the value-added classification rules, specifies how to decompose activities for value-added analysis, and presents an illustrative test case. The proposed method can be used to assess the overall planned effectiveness of a detailed construction plan or the actual effectiveness of a construction operation. A case study of masonry wall constr...
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