Reliability of prestressed concrete girders design: Comparison between NBR and Eurocode codes |
| ( Vol-9,Issue-3,March 2022 ) OPEN ACCESS |
| Author(s): |
Vinicius Heidtmann Avila, Mauro de Vasconcellos Real |
| Keywords: |
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bridge, Eurocode, NBR, precast beam, reliability. |
| Abstract: |
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This work evaluates the reliability index of prestressed girders beams of highway bridges designed according to Brazilian and European codes concerning the bending ultimate limit state. A model was used to verify the resistant capacity of the beams in the bending ultimate limit state and to evaluate the live load models proposed by the regulations studied. The bridge studied spans 27.4 meters, and four T section prestressed concrete girders support it. To obtain the reliability index ð›½, the First Order Reliability Method (FORM) was used, which proved to be very fast and efficient. The values collected by the analytical method are validated using the Monte Carlo simulation method. For all cases, the reliability index value was higher than 5.5, showing that the two normative recommendations for the design of girders beams guarantee a very conservative level of safety. |
| Article Info: |
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Received: 03 Jan 2022, Received in revised form: 26 Feb 2022, Accepted: 11 Mar 2022, Available online: 19 Mar 2022 |
 DOI:
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- ISSN : 2349-6495(P) | 2456-1908(O)
Advanced Engineering Research and Science