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Numerical evaluation of the long-term behavior of precast continuous bridge decks

Sousa, C, Sousa, H, Neves, AS and Figueiras, J (2012) Numerical evaluation of the long-term behavior of precast continuous bridge decks Journal of Bridge Engineering, 17 (1). pp. 89-96.

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Abstract

Continuous bridge decks constructed with precast girders undergo significant stress changes caused by the concrete delayed deformations because of creep and shrinkage. These effects must be taken into account in the design of new structures. The validation of the analysis procedures should ideally be carried out through the comparison between the calculations and the results observed in real structures. However, experimental results of the construction and long-term behavior of these structures are scarce. The construction of a major bridge in Portugal has provided the opportunity to monitor one such structure. This paper presents the monitoring campaign and the analysis strategy that was developed to assess the long-term variation of strains and stresses in precast continuous bridges. The numerical analysis was validated by comparison with the results observed in the real bridge. The consequences of carrying out simplified analyses based on limited information about the concrete properties and the construction sequence are also evaluated. © 2012 American Society of Civil Engineers.

Item Type: Article
Divisions : Faculty of Engineering and Physical Sciences > Civil and Environmental Engineering
Authors :
AuthorsEmailORCID
Sousa, CUNSPECIFIEDUNSPECIFIED
Sousa, HUNSPECIFIEDUNSPECIFIED
Neves, ASUNSPECIFIEDUNSPECIFIED
Figueiras, JUNSPECIFIEDUNSPECIFIED
Date : January 2012
Identification Number : 10.1061/(ASCE)BE.1943-5592.0000233
Additional Information : Copyright: American Society of Civil Engineers
Depositing User : Symplectic Elements
Date Deposited : 10 Sep 2013 09:59
Last Modified : 23 Sep 2013 20:13
URI: http://epubs.surrey.ac.uk/id/eprint/791820

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