Atir Strap And Beamd With Fix Crack
No – incorrect installation can worsen structural issues. Always involve a qualified structural engineer for load assessment and strap sizing.
Local steel fabricators, construction supply houses in India, Pakistan, Bangladesh, and Middle East. Equivalent names: “flat tension strap,” “steel strap for beam repair.” Atir Strap And Beamd With Fix Crack
With proper surface preparation and corrosion protection, >25 years. No – incorrect installation can worsen structural issues
The term "Atir strap" derives from a proprietary or regional name for high-tensile steel flat straps, commonly manufactured by Atir Engineering or similar structural steel fabricators. These straps are: Prepare strap: cut strap length so it extends
Prepare strap: cut strap length so it extends at least 3× the cracked area on each side (minimum 300–500 mm each side for short cracks). Round edges.
Pre-drill holes through strap and beam where bolts will go. Typical spacing: 75–150 mm along strap; keep 2–3 bolt rows if high load (one row may suffice for minor repairs).
Apply epoxy into the crack and onto bearing surface under the strap (for timber).
Attach strap on tension side (side that experiences tension under load — usually underside of a simply supported beam). Clamp strap and tighten bolts progressively to draw the crack closed but avoid over-tightening.
If using through-bolts, drill matching holes through beam, insert bolts with washers and nuts, tighten to snug (not crushing wood).
Add glued timber cleats or sistering (sister joist): if space allows, bolt a new timber board alongside the damaged beam using structural adhesive and bolts for increased capacity.
Allow adhesives/epoxy to cure per manufacturer times before removing temporary supports.
Finish: sand and paint/protect metal against corrosion; treat wood against moisture/rot.