CivilEA.com
  • Subscribe !
  • Register
  • Login
  • Home
  • Members
  • Help
  • Search
Civil Engineering Association eBooks Structural Books Concrete ReeveB. Zachary - Effect of adhesive stiffness and CFRP geometry on the behavior

ReeveB. Zachary - Effect of adhesive stiffness and CFRP geometry on the behavior
 andersen3

Not-Activated

White-private
User ID: 464
Joined: Jan 2009
Posts: 984
Threads: 54
Likes: 6,117 in 996 posts
Given Likes: 1243
Points:29,008 EP
#1
11-15-2012, 10:53 AM
Effect of adhesive stiffness and CFRP geometry

Author: Reeve Benjamin Zachary | Size: 2.54 MB | Format: PDF | Quality: Original preprint | Publisher: University of Pittsburgh | Year: 2005 | pages: 110

[Image: 56185996530343591593.jpg]


[Image: info.png]

The current American Concrete Institute (ACI) recommendation intended to mitigate
debonding failure by limiting the allowable strain in the FRP (the limiting strain is referred to as
εfub) is shown to be non-conservative, overestimating the strain where debonding becomes likely
by two fold for the high modulus adhesive and less so for the low modulus adhesive. The
equation for estimating εfubrecommended by Teng et al. (2001), including the modifying kbterm,
appears to provide appropriatelyconservative estimates of debonding for the specimens having
low modulus adhesive although remains unconservative for the high modulus adhesive. This
indicates that the nature of the adhesive should be included in the calculation of limiting strain.
Proposed values for the coefficient kwhich accounts for the b b f/b ratio were found to generally
underestimate the effect of the width ratio for the test specimens. Therefore, not only is the ratio
bf/b (as represented by kb) a contributing factor to bond behavior, its contribution may be
underestimated. Cover delamination (end peel debonding) was effectively mitigated in all
specimens by extending the CFRP close to the support along the relatively long shear span.

[Image: download.png]
Code:
***************************************
Content of this section is hidden, You must be registered and activate your account to see this content. See this link to read how you can remove this limitation:

http://forum.civilea.com/thread-27464.html
***************************************


[Image: password.png]
Code:
***************************************
Content of this section is hidden, You must be registered and activate your account to see this content. See this link to read how you can remove this limitation:

http://forum.civilea.com/thread-27464.html
***************************************



This post has been made by CivilEA Post-Generator ver 2.1.6



[-] The following 5 users Like andersen3's post:5 users Like andersen3's post
  • kowheng, lisine, blaze, Dell_Brett, bhuiyan
« Next Oldest | Next Newest »

Users browsing this thread: 1 Guest(s)



Possibly Related Threads…
Thread Author Replies Views Last Post
  Creep and Shrinkage: Their Effect on the Behavior of Concrete Structures aslam 3 2,928 10-13-2017, 04:32 PM
Last Post: gulilero
  Strengthening of Concrete Structures with Adhesive Bonded Reinforcement cace-01 4 2,044 03-12-2017, 09:37 PM
Last Post: Veggeta
  Design Guidelines for Durability of Bonded CFRP Repair/Strengthening of Concrete Beam mahyarov 0 789 10-25-2012, 02:44 PM
Last Post: mahyarov
  Adhesive Anchors in Concrete Under Sustained Loading Conditions mahyarov 0 758 10-23-2012, 04:44 PM
Last Post: mahyarov

  • View a Printable Version
  • Subscribe to this thread

Designed by CivilEA - Powered by MyBB

Linear Mode
Threaded Mode