CFRP Strengthening of steel structures is still not widely used by structural engineers due to the debonding issues between steel and CFRP and because of lack of design-guidelines availability. Number of research papers focussed on the bond properties between CFRP and steel structures with different parameters. This paper shows a new strengthening system by adding additional layer of bi-directional CFRP sheet to the CFRP-steel double strap joints. The physical testing of this new method has already been investigated by preparing 45 samples using different lengths of bi-directional CFRP sheets. The current study focusses on the modelling of these CFRPsteel joints with an additional layer of bi-directional sheet using non-linear finite element analysis. The results showed good agreement with the actual test results, the joint capacity is increased by up to 47% and this technique showed some delay in the debonding failure.
History
Available versions
Accepted manuscript
ISBN
9789555892384
Conference name
The 8th International Conference on Structural Engineering and Construction Management (ICSECM 2017)