Author: S.C. Kaethner (Arup) and J.A. Burridge (The Concrete Centre)
2 May 2012
Standard: £10 + VATMembers/Subscribers: Free
Members/Subscribers, log in to access
S.C. Kaethner (Arup) and J.A. Burridge (The Concrete Centre)
The Structural Engineer, Volume 90, Issue 5, 2012, Page(s) 8
One of the Institution's largest Regional Groups places strong emphasis on CPD...
Topics of importance openly discussed...
This paper presents an experimental programme conducted to investigate the behaviour of bonded-in BFRP bars loaded parallel to the grain of glulam members. Tensile pull-out tests were conducted to examine the effect of bonded length and bond stress-slip on the structural capacity of the connection. An analytical design expression for predicting pull-out capacity is proposed and the results have been compared with some established design equations. It was found that pull-out load increased approximately linearly with the bonded length, up to maximum which occurred at a bonded length of 15 times the hole diameter, and did not increase beyond this bonded length. The most significant failure modes were failure at the timber/adhesive interface followed by pull-out of the BFRP rod. Increased bonded lengths resulted in higher bond slip values compared to lower equivalent bonded lengths. The proposed design model gave the best predictions of pull-out capacity compared with other existing models.