High performance composite bridge decks using SCSFRC

Title: High performance composite bridge decks using SCSFRC
Author(s): R. Walter, H. Stang, N. J. Gimsing, J. F. Olesen
Paper category : conference
Book title: International Workshop High Performance Fiber Reinforced Cement Composites
Editor(s): A. E. Naaman and H. W. Reinhardt
Print-ISBN: 2-912143-38-1
e-ISBN: 2912143799
Publisher: RILEM Publications SARL
Publication year: 2003
Pages: 483 - 504
Total Pages: 22
Nb references: 7
Language: English

Abstract: The typical steel bridge deck in Europe consists of a 12 mm steel plate with supporting
ribs welded to the bottom face. This type of bridge deck suffers significantly from
increasing traffic loading, particularly from heavy trucks. The primary deficiency is the
lack of stiffness, which gives rise to excessive deformations and associated fatigue
failures in the welded seams. Increasing the stiffness by increasing the steel plate
thickness or the number of supporting steel ribs is expensive.
An innovative way of increasing the stiffness of such bridge decks is to cast a thin (40-60
mm) layer of Self Compacting Steel Fiber Reinforced Concrete (SCSFRC) on top of
the steel plate to form a composite plate.
The bond between the SCSFRC and the steel plate is of major concern. This paper
describes a series of tests carried out with composite plates where no specific measures
where taken to ensure the bond except sand blasting of the steel plate. A surprisingly
good performance was achieved. Furthermore, a simple analysis of the cracking
behaviour of the composite plate when subjected to a negative bending moment is
presented and compared with the experimentally observed behaviour.

Online publication: 2003-04-28
Publication type : abstract_only
Public price (Euros): 0.00