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http://dx.doi.org/10.14190/JRCR.2018.6.1.50

Tension Stiffening Effect and Crack Behavior of Tension Members Using High Strength Concrete  

Kim, Jee-Sang (Department of Civil Engineering, Seokyeong University)
Park, Chan Hyuk (EDCM Engineering Co., Ltd.)
Publication Information
Journal of the Korean Recycled Construction Resources Institute / v.6, no.1, 2018 , pp. 50-58 More about this Journal
Abstract
The verification of serviceability of concrete structures requires more informations on the composite behaviors between concrete and reinforcement. Among them, the investigation of crack widths and spacings is based on the tension stiffening effects. In this paper, the tension stiffening effects of high strength concrete members with compressive strength of 80 and 100MPa are investigated experimentally. It was found that the current design code which is based on the tests of normal strength concrete may not describe the tension stiffening effects in high strength concrete correctly. The coefficient that can appropriately reflect the tension stiffening effects in the high strength concrete was proposed. Also, the crack spacing was investigated through the cracking behaviors and the crack width according to the difference of the strains in steel and concrete was estimated. The results of this paper may be used to examine the tension stiffening effects of high strength concrete members.
Keywords
Tension stiffening effect; High strength concrete; Tension member; Cover thickness;
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