Why do U-wrap FRP shear upgrades often demand mechanical end anchors or full wraps?
Choices
- (A) Open U-ends peel under diagonal tension unless dowels restrain bond slip
- (B) U-wraps duplicate full hoop confinement automatically
- (C) Shear cracks never intersect FRP sheets
- (D) Anchors are aesthetic only on beam webs
Correct answer: (A)
Open U-ends peel under diagonal tension unless dowels restrain bond slip
Explanation
U-wrap peels unless end anchors curb bond slip waves.