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UDK: 624.7:624.012.45
DOI: n/a

Published: Građevinar 53 (2001) 9
Paper type: Preliminary report
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Stress transfer due to creep of concrete on composite bridges

Dragutin Horvatić, Darija Živni

Abstract

The issue of a more accurate calculation of stress transfer induced by creep of concrete was raised during conversion of the European prestandard for bridges ENV-1994-2 into the European standard (EN). For smaller spans of composite bridges the proportion of concrete is relatively higher, so that the influence of creep on girder is also higher. In a more accurate analysis the coefficient of creep φ should be corrected using factors ΨA,L and ΨI,L. The genesis of creep multipliers Ψ is presented and the differences which, according to allowable approximation, are not always on the side of safety, are illustrated by an example.

Keywords
stress changes, creep of concrete, effective modulus, ratio nL, creep multiplier Ψ, relaxation coefficients

HOW TO CITE THIS ARTICLE:

Horvatić, D., Živni, D.: Stress transfer due to creep of concrete on composite bridges, GRAĐEVINAR, 53 (2001) 9

OR:

Horvatić, D., Živni, D. (2001). Stress transfer due to creep of concrete on composite bridges, GRAĐEVINAR, 53 (9)
Authors:

Dragutin Horvatić
University of Zagreb,
Faculty of Civil Engineering

Darija Živni
University of Zagreb,
Faculty of Civil Engineering