Numerical Analysis of Crack Width in Structural Concrete Members

Title : Numerical Analysis of Crack Width in Structural Concrete Members
Published in : The International Conference on Future Information Technology, applications and services (IFIT 2016 Seoul)
Authors : Kiyeol Lee, HwaMin Lee
Corresponding author : HwaMin Lee
Location : Dongguk University, Seoul, Korea

Abstract
This research presents a numerical analysis model for crack width calculation in structural concrete members. The model is mathematically derived from the actual bond stress-slip relationships between the steel and the surrounding concrete, and the relationships specified in CEB-FIP Model Code 1990 and Eurocode 2 are employed in this research together with the numerical analysis results of a linear slip distribution along the interface at the stabilized cracking stage. With these, the actual strain of the steel and concrete are integrated respectively along the embedment length between the adjacent cracks so as to obtain the difference in the axial elongation. The model is applied to the test results available in literatures, and the predicted values are shown to be in good agreement with the experimentally measured data.

Acknowledgments
Following are results of a study on the “Leades INdustry university Cooperation” Project, supported by the Ministry of Education, Science & Technology (MEST).