Concrete Cracking in Tension Members and Application to Deck Slabs of Bridges

Currently, estimations of the crack width in the deck slab of bridges given by codes of practice are based on either theoretical or empirical approaches considering mainly the monotonic loading behaviour. However, cracking in reinforced tensile members is highly influenced by the loading history (including both the loading and unloading processes). The irreversible non-linear behaviour of bond and the tensile response of concrete induce residual cracks of non negligible width. This paper investigates the influence of this phenomenon and presents a physical model describing it. An analytical model is developed and its results are compared to various tests with good agreement. Finally, a simple design formula is derived and recommendations for its application to practical cases are proposed.


Published in:
ASCE Journal of Bridge Engineering, 12, 646-653
Year:
2007
Publisher:
USA, ASCE Journal of Bridge Engineering
Keywords:
Other identifiers:
Laboratories:




 Record created 2008-01-25, last modified 2018-03-16

n/a:
Download fulltext
PDF

Rate this document:

Rate this document:
1
2
3
 
(Not yet reviewed)