An Analytic Method for the Residual Strength Evaluation of Fire-Damaged Reinforced Concrete Beam
- Authors
- Park, Won-jun; Park, Ki-bong; Lee, Han-seung
- Issue Date
- Dec-2008
- Publisher
- 대한건축학회
- Keywords
- Reinforced Concrete Beam; High Temperature (Fire); Residual Strengths; Finite Element Analysis(FEA); Section Repair
- Citation
- Architectural Research, v.10, no.2, pp.37 - 42
- Indexed
- KCI
- Journal Title
- Architectural Research
- Volume
- 10
- Number
- 2
- Start Page
- 37
- End Page
- 42
- URI
- https://scholarworks.bwise.kr/erica/handle/2021.sw.erica/42772
- ISSN
- 1229-6163
- Abstract
- This study is to get the proper evaluation of the residual property of reinforced concrete beam exposed to fire. This study focused on the
strength resistance and analytical evaluation of RC members exposed high temperature. And this study is the basis analytical research to
conduct the other studies. To analysis by the finite element method, the Total-RC program was used to analysis it and the Total-Temp program
was also used to analysis the temperature distributions at the section. All of results were compared with the pre-existing experimental
data of simple supported beam. Using it, the parameters influencing the structural capacity of the high temperature-damaged RC members
and residual strength estimation are investigated. The temperature distribution and the structural capacity at the section are calculated in this
step. An application of this method is compared with the heating test result and residual property test for simple supported beam which is subjected
to ISO 834 test fire. The results of this study are as follows; 1) The loads-displacement relationship of RC beam, considering initial
thermal stress of cross section and heat transfer analysis are estimated comparing analytical value with pre-existing experimental results. 2)
by the heating time (0, 1, 2 hours), the results of analysis with parameters show that the load capacity exposing at fire is affected.
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