An experimental study on debonding of steel plates bonded to concrete in the presence of embedded shear connectors
In the present paper the problem of brittle debonding between steel plates and concrete was experimentally investigated by means of single lap shear tests. New embedded adhesive and steel connectors were proposed to mitigate or delay debonding and to enhance bond strength at the concrete- steel...
Saved in:
| Main Authors: | , , |
|---|---|
| Format: | Conference Proceeding |
| Language: | English |
| Published: |
2018
|
| Online Access: | http://dspace.uniten.edu.my/jspui/handle/123456789/10227 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Summary: | In the present paper the problem of brittle
debonding between steel plates and concrete was
experimentally investigated by means of single lap shear tests.
New embedded adhesive and steel connectors were proposed
to mitigate or delay debonding and to enhance bond strength
at the concrete- steel interface. Strain gauges along 20 mm
wide steel plates to measure longitudinal strains were used and
the progressive debonding along the bonded length was
followed. The experimental results showed that the interfacial
bond strength between steel plates and concrete was increased
remarkably when using these connectors. The investigation
clarified that the steel connectors are more effective in
increasing the shear bond strength, it also showed that increase
the diameter of those connectors increase the interfacial shear
stress and delay the debonding failure. Finally, a new simple
and rational model was proposed based on the existing
fracture mechanics analysis and experimental observations to
predict the bond strength. The new model is believed to be
suitable for practical application in design solutions of steelto-concrete
bonded joints. |
|---|