| Issue |
MATEC Web Conf.
Volume 310, 2020
4th International Scientific Conference Structural and Physical Aspects of Construction Engineering (SPACE 2019)
|
|
|---|---|---|
| Article Number | 00055 | |
| Number of page(s) | 10 | |
| DOI | https://doi.org/10.1051/matecconf/202031000055 | |
| Published online | 05 March 2020 | |
Probabilistic modelling of prestressed concrete roof girders
Brno University of Technology, Faculty of Civil Engineering, Veveří 331/95, Brno, Czech Republic
* Corresponding author: novak.d@fce.vutbr.cz
The paper describes several parts of complex stochastic modelling of precast prestressed concrete girders failing in shear. Experimental studies have been performed on scaled elements as well as on full-scale girders. These tests serve as basis for developing the deterministic nonlinear model and subsequent probabilistic assessment of structural resistance. The combination of nonlinear finite element method and probabilistic analysis is a strong tool for the realistic modelling of structures, but it is extremely time consuming, especially when 3D nonlinear model with many input random parameters is analysed. Therefore, sensitivity analyses have been performed and a surrogate model has been developed. Safety formats are utilized and compared with fully probabilistic approach to determine design value of ultimate capacity of girders.
© The Authors, published by EDP Sciences, 2020
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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