Abstract
Temporary structures are designed from complex structural analyses. Concrete formwork is a representative temporary structure, and frequently fails during construction due to unexpected external factors. Therefore, safety managers should constantly monitor structural behavior to determine whether the formwork is performing safely. Information on structural behavior provides knowledge on the characteristics of actual temporary structures and can help ensure safe concrete placement. The objective of this study is to present a guideline for safe concrete placement based on an understanding of the structural behavior of concrete formwork. Using ubiquitous sensor network devices, an indoor test bed was built to test the structural behavior of concrete formwork. Eight scenarios were investigated, representing typical safety conditions that occur for concrete formwork. Finite-element analysis was conducted for these scenarios to provide a guideline for safe concrete placement. Laboratory loading tests conducted on the test bed validated that the safety guideline provided a suitable procedure to cope with abnormal behaviors on concrete formwork and can be applied to ensure safe concrete placement.
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Data Availability Statement
Data generated or analyzed during the study are available from the corresponding author by request. Information about the Journal’s data-sharing policy can be found here: http://ascelibrary.org/doi/10.1061/%28ASCE%29CO.1943-7862.0001263.
Acknowledgments
This research was supported by the Basic Science Research Program through the National Research Foundation of Korea (NRF), funded by the Ministry of Education (2015R1D1A1A01059487).
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Published In
Journal of Construction Engineering and Management
Volume 144 • Issue 12 • December 2018
Copyright
©2018 American Society of Civil Engineers.
History
Received: May 2, 2017
Accepted: Nov 27, 2017
Published online: Sep 27, 2018
Published in print: Dec 1, 2018
Discussion open until: Feb 27, 2019
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