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development length of top bars in compression
- Thread starter ajk1
- Start date
BridgeSmith
Structural
I suspect it has to do with bars in compression not relying on bond with the concrete to transfer force into the concrete. The top bar adjustment accounts for air bubbles getting trapped under the bars and decreasing the surface area of the bars bonded to the concrete. Similarly, the adjustment for epoxy coating accounts for the decreased bond strength to the concrete of the smooth epoxy vs. uncoated steel.
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