Nonlinear global design resistance: Case studies of post-tensioned concrete bridges made of I-73 and KA-61 girders
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F24%3APU152593" target="_blank" >RIV/00216305:26110/24:PU152593 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1002/suco.202300986" target="_blank" >https://doi.org/10.1002/suco.202300986</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1002/suco.202300986" target="_blank" >10.1002/suco.202300986</a>
Alternative languages
Result language
angličtina
Original language name
Nonlinear global design resistance: Case studies of post-tensioned concrete bridges made of I-73 and KA-61 girders
Original language description
The paper portrays a comprehensive computational procedure for determining the global structural resistances of two existing bridges made of I-73 and KA-61 precast post-tensioned concrete girders using advanced statistical assessment methods in combination with nonlinear fracture mechanics-based finite element method analysis. Although this combination is a powerful tool for realistic modeling of structures, its practical application is still very time consuming. Therefore, a statistical sampling approach for the determination of the structural design resistance is compared to selected efficient semi-probabilistic methods based on the estimation of coefficient of variation-estimation of coefficient of variation (ECoV) method according to fib Model Code 2010 and improved approach called Eigen ECoV method. Load-bearing capacity is determined for the ultimate as well as several serviceability limit states. The sensitivity of the input parameters burdened with uncertainties on the response of the structure is quantified using a sensitivity analysis supported by a surrogate model based on polynomial chaos expansion. The paper shows that the applicability of nonlinear modeling with respect to uncertainties is possible when using these ECoV methods and a surrogate model and can be applied in a routine manner. The shortcomings and advantages of all the used safety design/assessment methods are discussed.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20100 - Civil engineering
Result continuities
Project
<a href="/en/project/GA22-00774S" target="_blank" >GA22-00774S: Metamodel-assisted probabilistic assessment in bridge structural engineering (MAPAB)</a><br>
Continuities
S - Specificky vyzkum na vysokych skolach
Others
Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Structural Concrete
ISSN
1464-4177
e-ISSN
1751-7648
Volume of the periodical
25
Issue of the periodical within the volume
6
Country of publishing house
DE - GERMANY
Number of pages
16
Pages from-to
4167-4182
UT code for WoS article
001300569500001
EID of the result in the Scopus database
2-s2.0-85202520550