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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Faria, Rui
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (11/11 displayed)
- 2021Modelling macroscopic shrinkage of hardened cement paste considering C-S-H densificationcitations
- 2020A new test setup for simulation of the combined effect of bending and axial restraint in slab-like specimenscitations
- 20203D numerical simulation of the cracking behaviour of a RC one-way slab under the combined effect of thermal, shrinkage and external loadscitations
- 20193D Thermo-hygro-mechanical approach for simulation of the cracking behaviour of a RC slab under the combined effects of applied loads and restrained shrinkage
- 2019Numerical study of arch dams under the construction and operation scenarios
- 2018Microstructure-based prediction of thermal properties of cement paste at early ages
- 2018Microstructure-based 3d modelling of diffusivity in sound and cracked cement paste
- 2018Proposal of a test set up for simultaneous application of axial restraint and vertical loads to slab-like specimens: sizing principles and application
- 2012A Timoshenko-based structural model for the analysis of bridges
- 2011Numerical simulations of the warth bridge seismic response
- 2010Simplified Procedure for Shear Failure Assessment of RC Framed Structures Exposed to Fire
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document
A Timoshenko-based structural model for the analysis of bridges
Abstract
The objective of this work is to present all the phases of a process that lead to the development of object oriented software for structural analysis of bridges. The objectives and motivation for the process are presented, as well as the Object Oriented Programming paradigm and the platform concept. The structural analysis model was developed to perform 3D analyses of evolutive structures, from the building phase up to the final application, using a discretization with FE based on the Timoshenko beam formulation. The model allows for changes of the static system to be made over time, incorporating specific FE for the discretization of rebars, prestress (both embedded and exterior) and stay cables, different types of external links (including sliding and unidirectional supports), time dependent material behavior laws (such as concrete ageing, shrinkage and creep, as well as prestress relaxation) and other nonlinear constitutive laws (such as the elastoplastic behavior of steel and the concrete cracking). The model includes incremental and iterative tools to solve the nonlinear problem involved, and it was validated by carrying out a structural analysis of the Corujeira Viaduct in Oporto, during the construction phase, load tests, future behavior and maintenance operations. The measurements made by the permanent monitoring system installed in the viaduct were compared with the predictions from the numerical model throughout all the aforementioned phases.