Analysis of bond-slip between concrete and steel bar in fire. (1st January 2016)

• Record Type: Journal Article
• Authors: Khalaf, Jamal; Huang, Zhaohui; Fan, Mizi
• Is Part Of: Computers & structures. Volume 162(2016)
• Page Start: 1
• Page End: 15
• Publication Date: 2016-01-01
• Subjects: Bond-slip -- Concrete structures -- Fire -- Splitting failure; Structural engineering -- Data processing -- Periodicals; Electronic data processing -- Structures, Theory of -- Periodicals; 624.171
• DOI: 10.1016/j.compstruc.2015.09.011
• Languages: English
• ISSNs: 0045-7949

Abstract

Highlights: Develop a robust model for predicting the bond-slip between the concrete and steel ribbed bar at elevated temperatures. Incorporate the bond-slip model into the Vulcan program for 3D analysis of reinforced concrete structures in fire. The model has been validated against previous test results and good agreements are achieved. Abstract: This paper presents a robust model for predicting the bond-slip between the concrete and steel reinforced bar at elevated temperatures. The model is established based on a partly cracked thick-wall cylinder theory and the smeared cracking approach is adopted to consider the softening behaviour of concrete in tension. The model is able to consider a number of parameters: such as different concrete properties and covers; different steel bar diameters and geometries. The proposed model has been incorporated into the Vulcan program for 3D analysis of reinforced concrete structures in fire. The model has been validated against previous test results.