| People | Locations | Statistics |
|---|---|---|
| Naji, M. |
| |
| Motta, Antonella |
| |
| Aletan, Dirar |
| |
| Mohamed, Tarek |
| |
| Ertürk, Emre |
| |
| Taccardi, Nicola |
| |
| Kononenko, Denys |
| |
| Petrov, R. H. | Madrid |
|
| Alshaaer, Mazen | Brussels |
|
| Bih, L. |
| |
| Casati, R. |
| |
| Muller, Hermance |
| |
| Kočí, Jan | Prague |
|
| Šuljagić, Marija |
| |
| Kalteremidou, Kalliopi-Artemi | Brussels |
|
| Azam, Siraj |
| |
| Ospanova, Alyiya |
| |
| Blanpain, Bart |
| |
| Ali, M. A. |
| |
| Popa, V. |
| |
| Rančić, M. |
| |
| Ollier, Nadège |
| |
| Azevedo, Nuno Monteiro |
| |
| Landes, Michael |
| |
| Rignanese, Gian-Marco |
|
Caspeele, Robby
Ghent University
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (14/14 displayed)
- 2022Development of conformity criteria for durability and its influence on service life predictions
- 2022Preliminary investigation of the long-term deformations of self-healing concrete with superabsorbent polymers
- 2021Quantification of model uncertainties of the energy-based method for dynamic column removal scenarioscitations
- 2021Effects of the fire decay phase on the bending capacity of a fire-exposed reinforced concrete slab
- 2021Evaluation of test methods for self-healing concrete with macrocapsules by inter-laboratory testing
- 2021Evaluation of test methods for self-healing concrete with macrocapsules by inter-laboratory testing
- 2020Addressing the need for standardization of test methods for self-healing concrete : an inter-laboratory study on concrete with macrocapsulescitations
- 2020Addressing the need for standardization of test methods for self-healing concrete: an inter-laboratory study on concrete with macrocapsules.
- 2020Addressing the need for standardization of test methods for self-healing concrete: an inter-laboratory study on concrete with macrocapsulescitations
- 2018Experimental investigation into the effects of membrane action for continuous reinforced glass beam systemscitations
- 2017Performance of statically indeterminate reinforced glass beams : experimental comparison with determinate systems and effect of a discontinuous glass sectioncitations
- 2016Development of reinforced and posttensioned glass beams:review of experimental researchcitations
- 2013Probabilistic FAD and ductile tearing assessment
- 2010Use of water demand and consistency prediction models as steering elements for the production of ready-mixed concrete
Places of action
| Organizations | Location | People |
|---|
article
Quantification of model uncertainties of the energy-based method for dynamic column removal scenarios
Abstract
The Alternative Load Path (ALP) method is widely used to assess progressive collapse resistance of reinforced concrete (RC) structures by notional removal of one or more load-bearing elements. In general, a nonlinear time history analysis (NTHA) is needed to perform such an analysis if dynamic effects are explicitly taken into account. To avoid cumbersome nonlinear dynamic analyses, the energy-based method (EBM) is a promising technique to predict the maximum dynamic responses of a structural system. In this article, the accuracy and precision of the EBM is evaluated based on a validated finite element model of a tested RC slab subjected to a sudden column removal scenario, in particular in relation to the investigation of tensile membrane action (TMA). Influences of dynamic effects are evaluated, i.e. in relation to strain rate effects, damping, and the time duration of support removals. Strain rate effects are observed to have only slight influences on the dynamic responses. The strain rate dependency of reinforcement is found to have a more significant influence on the responses in TMA stage, although also to a limited extent. The magnitude of the load has a significant influence on the dynamic response, as do increasing damping ratios due to the corresponding significant energy dissipation. Finally, the dynamic response reduces with increasing time duration of the column removal. Based on the results of the stochastic analyses, the EBM is observed to perform well based on a comparison with the results of NTHA in both flexural and TMA stages. Furthermore, in relation to the analyzed case studies on reinforced concrete slabs, the model uncertainty of the responses obtained through the EBM compared with the NTHA is found to be represented well by a lognormal distribution with mean of 0.95 and a standard deviation of 0.20, for evaluating the loads of first rupture of reinforcement. Furthermore, a lognormal distribution with mean 0.96 and standard deviation 0.13 is found appropriate to represent the model uncertainty on ultimate load-bearing capacity predictions. Model uncertainties are also obtained with respect to the model predictions for displacements at the moment of the first rupture of reinforcement, displacements at the ultimate load-bearing capacities, and both loads and displacements at second load peaks.