A new analytical model is proposed to describe the bond strength between a ribbed reinforcement bar and concrete. The model is based on the partly cracked solution of a thick-walled cylinder exposed to radial internal pressure. Instead of considering the minimum crack number in previous solutions, smeared cracking and average stress–strain of concrete in tension are used in radial directions to describe the softening behaviour of concrete. The results are compared with Tepfers' classic solutions and other previous solutions. 9 refs.
Primary author(s): Wang X; Liu X
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