Abstract
Previous research showed that the capacity of existing slab-between-girder bridges is larger than expected based on the punching shear capacity prescribed by the governing codes, as a result of compressive membrane action. A first series of fatigue tests confirmed that compressive membrane action also acts under cycles of loading. However, a single experiment in which first a number of cycles with a higher load level and then with a lower load level were applied, seemed to indicate that this loading sequence shortens the fatigue life. This topic was further investigated in a second series of fatigue tests with three static tests and ten fatigue tests. The parameters that were varied are the sequence of loading and the effect of a single or a double wheel print. The results show that the sequence of load levels does not influence the fatigue life.
Original language | English |
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Pages (from-to) | 209-218 |
Number of pages | 10 |
Journal | ACI Structural Journal |
Volume | 116 |
Issue number | 4 |
DOIs | |
Publication status | Published - 2019 |
Bibliographical note
Accepted Author ManuscriptKeywords
- Bridge evaluation
- Compressive membrane action
- Concrete bridges
- Fatigue
- Fatigue testing
- Laboratory testing
- Prestressed concrete
- Punching shear