Finite Element Modelling of FRP – Strengthened Structural Elements
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Bibliographic Details
| Author(s): |
Todor Zhelyazov
(TU-Sofia, Sofia, Bulgaria)
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| Medium: | conference paper | ||||
| Language(s): | English | ||||
| Conference: | IABSE Symposium: Towards a Resilient Built Environment Risk and Asset Management, Guimarães, Portugal, 27-29 March 2019 | ||||
| Published in: | IABSE Symposium Guimarães 2019 | ||||
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| Page(s): | 752-758 | ||||
| Total no. of pages: | 7 | ||||
| DOI: | 10.2749/guimaraes.2019.0752 | ||||
| Abstract: |
Numerical aspects of the analysis of structural elements strengthened with FRP reinforcement are discussed in this contribution. Constitutive laws are defined on the meso – scale for the materials involved (steel, concrete, FRP). The evolutions of experimentally observable parameters of FRP-strengthened concrete elements loaded in flexure are obtained by finite element analysis. Numerical results are compared to experimental data. The employed numerical strategy consists in defining a damage-based constitutive law for concrete. A beneficial outcome of the implementation of such constitutive relation is the possibility to monitor the damage evolution for a given period of exploitation. Since the remaining structural life can be assessed in this way, monitoring of damage accumulation appears as a prerequisite for an accurate and efficient design of the reinforcement. |
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| Keywords: |
concrete FRP finite element modeling (FEM) damage pre-tensioning basalt fiber
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