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http://dx.doi.org/10.5345/JKIBC.2021.21.5.445

Development of Risk Evaluation Checklist for In-Situ Production of Precast Concrete Members  

Lim, Jeeyoung (Department of Architectural Engineering, Pusan National University)
Jeong, Hee Woong (Department of Architectural Design, Dongseo University)
Kim, Dae Young (Department of Architectural Engineering, Pusan National University)
Publication Information
Journal of the Korea Institute of Building Construction / v.21, no.5, 2021 , pp. 445-457 More about this Journal
Abstract
In previous studies, it was confirmed that through the in-situ production of precast concrete members, costs could be reduced by 14.5-39.4% compared to in-plant production. In particular, it was confirmed that the factory owner did not make a contract if it did not earn more than 20% of the production cost. If precast concrete members are produced in-situ under the same conditions, the quality equivalent to that of factory production can be secured. As it is advantageous in terms of cost and quality, precast concrete members must be produced in-situ. However, it is difficult to produce all quantities in-situ due to time and various other constraints. This is because in-situ production is avoided due to anticipated risks during the project management process. However, if the risk factors are analyzed before performing in-situ production of precast concrete members, it will increase the opportunity for in-situ production. Therefore, this study develops a checklist for evaluating the risk of in-situ production of precast concrete members. By applying the checklist to one case site, it was verified that risk factors can be evaluated easily and quickly. As a result, it was analyzed that sites with a high building coverage ratio are classified as high-risk sites because it is difficult to secure usable area for production and storage. The developed checklist efficiently evaluates the risk factors of in-site production, and makes it possible for the operator to determine the risk factors, which can change frequently during project execution, and respond according to the situation.
Keywords
in-situ production; precast concrete members; risk checklist development; risk evaluation; case project;
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