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Fatigue behaviour of cracked concrete decks under cyclic shear loading

 Fatigue behaviour of cracked concrete decks under cyclic shear loading
Author(s): ,
Presented at IABSE Symposium: Challenges for Existing and Oncoming Structures, Prague, Czech Republic, 25-27 May 2022, published in , pp. 507-514
DOI: 10.2749/prague.2022.0507
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In large steel-concrete composite road bridges cracking occurs in the concrete deck due to tension resulting from negative bending moments at the support area. Simultaneously, high wheel loads from...
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Bibliographic Details

Author(s): (Institute of Structural Design, University of Stuttgart)
(Institute of Structural Design, University of Stuttgart)
Medium: conference paper
Language(s): English
Conference: IABSE Symposium: Challenges for Existing and Oncoming Structures, Prague, Czech Republic, 25-27 May 2022
Published in:
Page(s): 507-514 Total no. of pages: 8
Page(s): 507-514
Total no. of pages: 8
DOI: 10.2749/prague.2022.0507
Abstract:

In large steel-concrete composite road bridges cracking occurs in the concrete deck due to tension resulting from negative bending moments at the support area. Simultaneously, high wheel loads from the traffic act as cyclic shear loading on the concrete. As a result, tension forces coming from the global load-carrying effect need to be superimposed with local vertical forces due to the wheel loads acting as cyclic shear loading. In this paper, the results of experimental investigations regarding the fatigue strength of the cracked concrete deck in tension are discussed. Furthermore, the effect of the longitudinal reinforcement ratio and the height of the tensile stress is pointed out.

Keywords:
composite bridges cracked concrete deck fatigue shear loading
Copyright: © 2022 International Association for Bridge and Structural Engineering (IABSE)
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