Avoid these errors that lead to repair failure:
| Mistake | Consequence | Solution | | :--- | :--- | :--- | | Strap too short | Does not transfer load beyond the weakened zone | Extend strap 12-18 inches past crack tip | | No epoxy injection | Crack reopens under load; strap tears out anchors | Always inject before strapping | | Using nails instead of bolts | Nails have poor pull-out resistance | Use lag screws or through-bolts | | Strap installed on wrong face | Tension strap on top of beam (useless) | Tension face = bottom for simple spans | | Ignoring shear | Diagonal crack continues around the strap | Add side straps at 45 degrees | Atir Strap And Beamd With Fix Crack
| Method | Cost | Durability | Skill Level | Best For | |--------|------|------------|-------------|-----------| | Atir Strap | Medium | High (20+ years) | Intermediate | Moderate to severe structural cracks | | Epoxy injection only | Low | Medium | Low | Hairline non-structural cracks | | FRP wrapping | High | Very high | Expert | Seismic upgrades, high-corrosion environments | | Concrete jacketing | High | High | High | Severely deteriorated beams (section loss >30%) | | Replacement of beam | Very high | Very high | Expert | Collapse risk, major failure | Avoid these errors that lead to repair failure:
The Atir strap and beam with fix crack approach sits perfectly in the “cost-effective, durable, and field-friendly” zone. After you perform the Atir strap and beamd
After you perform the Atir strap and beamd with fix crack repair, inspect the repair every 6 months:
If you see new cracks forming next to the strap, the beam has failed globally, and you need a full replacement.