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| Research on properties of bottom column joint of corroded RC structure based on OpenSees |
| Received:March 01, 2012 Revised:June 03, 2012 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7511/jslx201303019 |
| KeyWord:fiber model the material of Bond_SP01 corrosion bottom column joint reinforced concrete |
| Author | Institution |
| 欧晓英 |
大连理工大学建设工程学部, 大连 |
| 林迟 |
大连理工大学建设工程学部, 大连 |
| 张沛洲 |
大连理工大学建设工程学部, 大连 |
| 何政 |
大连理工大学建设工程学部, 大连 |
| 欧进萍 |
大连理工大学建设工程学部, 大连 |
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| 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. |