Abstract
Based on the assumptions of uniform corrosion and linear elastic expansion, an analytical model of cracking due to rebar corrosion expansion in concrete was established, which is able to consider the structure internal force. And then, by means of the complex variable function theory and series expansion technology established by Muskhelishvili, the corresponding stress component functions of concrete around the reinforcement were obtained. Also, a comparative analysis was conducted between the numerical simulation model and present model in this paper. The results show that the calculation results of both methods were consistent with each other, and the numerical deviation was less than 10%, proving that the analytical model established in this paper is reliable.
Highlights
Reinforced concrete cracking caused by corrosion of steel bar is an important indicator of durability.[1]
The economic cost because of concrete durability failure caused by reinforcement corrosion in USA and western developed countries is extremely huge, which is the same and increasing in China
The durability problem caused by reinforcement corrosion, such as concrete cracking, is a basic scientific problem that needs to be solved at present
Summary
Reinforced concrete cracking caused by corrosion of steel bar is an important indicator of durability.[1]. The durability problem caused by reinforcement corrosion, such as concrete cracking, is a basic scientific problem that needs to be solved at present. The author intends to introduce the structural stress state into corroded expansion mechanics analysis model and solve for its internal force using the complex variables functions method, and to establish a new analysis model for corrosion cracking of reinforced concrete with the consideration of structural stress
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