Experimental investigations and sensitivity analysis to explain the large creep of concrete deformations in the bridge of Cheviré
Source abstract
Abstract
In France, the vertical deflection measurements of Cheviré free end cantilever bridge have shown unexpected excessive creep deformations. To understand this phenomenon, a large experimental database coming from different laboratories and research centers is used to compare the creep experimental deformation results to the long-term deformation predicted by the design codes of practice. These codes include BPEL code that was used in designing Cheviré bridge and Eurocode 2 that is applied nowadays in structures designs. Then, a coupling between the reliability software PHIMECA and the finite element tool ST1 was performed to analyze the sensitivity measures of creep parameters of Cheviré bridge. The results showed that creep deformation is relatively underestimated in the codes considered. Moreover, the sensitivity study applied to Cheviré bridge showed that the parameters used in creep calculation are equally distributed in Eurocode 2 contrary to BPEL code. Thus, in this reliability assessment performed, Eurocode 2 gave better results regarding Cheviré bridge concrete creep strains predictions. Keywords: Creep, Concrete, Bridge of Cheviré, Experimental data, Mechanical-reliability coupling
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Geotechnical Engineering and Analysis · Concrete Properties and Behavior · Fire effects on concrete materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (25)
Show source-provided references
1. Maintenance planning for multi-component systems subject to reliability constraints
2. A failure analysis study of a prestressed steel cable of a suspension bridge
3. Reliability-based assessment of creep models for high performance concrete using Bayesian updating
4. Optimization procedure for inspection and maintenance of multiple infrastructures under constrained budget
5. Bridge prestress losses in dry climate10.1061/(ASCE)1084-0702(1998)3:3(111) ↗
6. Diagnosis of the surface layer damage in a 1960s reinforced concrete building
7. Excessive long-time deflections of prestressed box girders: I. Record-span bridge in Palau and other paradigms and II. Numerical analysis and lessons learned10.1061/(ASCE)ST.1943-541X.0000487 ↗
8. Unbiased statistical comparison of creep and shrinkage prediction models
9. Reliability of prestressed concrete structures considering creep models
10. RILEM draft recommendation: TC-242-MDC multi-decade creep and shrinkage of concrete: material model and structural analysis. Model B4 for creep, drying shrinkage and autogenous shrinkage of normal and high-strength concretes with multi-decade applicability10.1617/s11527-014-0485-2 ↗
11. Creep and shrinkage prediction model for analysis and design of concrete structures: Model B3
12. Bayesian statistical prediction of concrete creep and shrinkage
13. Bayesian analysis of model uncertainty in structural reliability
14. Approximate Bayesian Computation method: update of the Eurocode 2 creep model- deterministic and probabilistic – rejection algorithm approach
15. Conventional models for creep in normal and high-strength concrete
16. Bayesian approach for quantifying silica fume and water reducer impact on creep of concrete10.1680/jmacr.17.00238 ↗
17. Statistical justification of Model B4 for multi-decade concrete creep using laboratory and bridge databases and comparisons to other models10.1617/s11527-014-0486-1 ↗
18. Comprehensive database for concrete creep and shrinkage: analysis and recommendations for testing and recording
19. Règles techniques de conception et de calcul des ouvrages et constructions en béton précontraint suivant la méthode des états limites
20. CEN · 2004
21. PHIMECA, “Logiciel de calcul de fiabilité”, Phimeca Engineering S.A., Romagnat, France, 2002.
22. Logiciel de calcul des structures
23. Reliability based assessment of prestressed concrete structures subject to creep – application to a bridge
24. Fiabilité des structures mécaniques, couplage mécano-fiabiliste statique
25. Relaxation of prestressing steel at varying strain and temperature: viscoplastic constitutive relation