Indirect estimate of concrete compression strength framework with FE model updating and operational modal analysis
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Bibliographic Details
| Author(s): |
Marco Martino Rosso
(DISEG, Dipartimento di Ingegneria Strutturale, Edile e Geotecnica, Politecnico di Torino, Corso Duca Degli Abruzzi, 24, Turin, 10128, Italy)
Raffaele Cucuzza (DISEG, Dipartimento di Ingegneria Strutturale, Edile e Geotecnica, Politecnico di Torino, Corso Duca Degli Abruzzi, 24, Turin, 10128, Italy) Giuseppe Carlo Marano (DISEG, Dipartimento di Ingegneria Strutturale, Edile e Geotecnica, Politecnico di Torino, Corso Duca Degli Abruzzi, 24, Turin, 10128, Italy) Angelo Aloisio (Civil Environmental and Architectural Engineering Department, Università degli Studi dell'Aquila, via Giovanni Gronchi n.18, L'Aquila, 67100, Italy) Dag Pasquale Pasca (Norsk Treteknisk Institutt, Børrestuveien 3, Oslo, 0373, Norway) |
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| Medium: | conference paper | ||||
| Language(s): | English | ||||
| Conference: | IABSE Symposium: Challenges for Existing and Oncoming Structures, Prague, Czech Republic, 25-27 May 2022 | ||||
| Published in: | IABSE Symposium Prague 2022 | ||||
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| Page(s): | 1611-1618 | ||||
| Total no. of pages: | 8 | ||||
| DOI: | 10.2749/prague.2022.1611 | ||||
| Abstract: |
The aging of existing concrete structures requires the development of economical and non- destructive (ND) methods to estimate their structural capacity. The practice of operational modal analysis (OMA) in civil structures is actually widespread, but there are a few applications that relate the estimate of the modal parameters to the ultimate resistance of concrete: accurately, the elastic modulus of concrete is a mechanical parameter correlated to the conservation state of concrete. The modal parameters can return reliable estimates of the elastic modulus, by assuming the geometrical characteristics of the beam and the mass density. In this paper, the authors estimate the elastic modulus of a set of seven spans concrete bridge by optimizing the finite element (FE) model of the bridges using the outcomes of OMA. Thereafter, the value of the elastic modulus has been compared with the compressive resistance of concrete obtained by using existing literature formulations and in-situ destructive tests on concrete specimens. It is assessed the reliability in the estimate of the compression resistance of concrete using OMA, by propagating the uncertainties of the estimates from the modal parameters to the resistance of concrete. |
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| Keywords: |
concrete strength structural health monitoring operational modal analysis model updating Young''s modulus
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| Copyright: | © 2022 International Association for Bridge and Structural Engineering (IABSE) | ||||
| License: | This creative work is copyrighted material and may not be used without explicit approval by the author and/or copyright owner. |
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