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NOVÁK, D. NOVÁK, L. SLOWIK, O.
Original Title
Probabilistic modelling of prestressed concrete roof girders
Type
conference paper
Language
English
Original Abstract
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.
Keywords
Probabilistic modelling; prestressed concrete; roof girders;
Authors
NOVÁK, D.; NOVÁK, L.; SLOWIK, O.
Released
5. 3. 2020
Location
Slovakia
ISBN
2261-236X
Periodical
MATEC Web of Conferences
Year of study
310
State
French Republic
Pages from
1
Pages to
10
Pages count
URL
https://www.matec-conferences.org/articles/matecconf/abs/2020/06/matecconf_space20_00055/matecconf_space20_00055.html
BibTex
@inproceedings{BUT170658, author="Drahomír {Novák} and Lukáš {Novák} and Ondřej {Slowik}", title="Probabilistic modelling of prestressed concrete roof girders", booktitle="MATEC Web of Conferences", year="2020", journal="MATEC Web of Conferences", volume="310", number="310", pages="1--10", address="Slovakia", doi="10.1051/matecconf/202031000055", issn="2261-236X", url="https://www.matec-conferences.org/articles/matecconf/abs/2020/06/matecconf_space20_00055/matecconf_space20_00055.html" }