Abstract
In this paper, the effect of the bond behavior variation on the behavior of RC structure members was investigated using OpenSees. The bottom column joints with different corrosion rates were studied. The Bond_SP01 material model and zero-length section element in OpenSees were used to simulate the bond behavior between concrete and steel rebar. The parameters of Bond_SP01 for different corrosion rates were verified using the Finite Element Model. From this research it is observed that the bond slip between concrete and steel rebar affects the structure behavior significantly when the rebar suffered serious corrosion. The behavior of bottom column joint is governed by the bond between concrete and steel rebar before the steel rebar yield. After that, the loss of rebar section on the column top affects the behavior, and the affects from the bond variation and rebar section loss are nearly the same. It is recommended to consider the bond deterioration effect in the analysis of corrosion member or structure.
| Original language | English |
|---|---|
| Pages (from-to) | 429-436 |
| Number of pages | 8 |
| Journal | Jisuan Lixue Xuebao/Chinese Journal of Computational Mechanics |
| Volume | 30 |
| Issue number | 3 |
| DOIs | |
| State | Published - Jun 2013 |
| Externally published | Yes |
Keywords
- Bottom column joint
- Corrosion
- Fiber model
- Reinforced concrete
- The material of Bond_SP01
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