
This product's information may differ depending on the category of use. You are currently viewing details related to Purlin Anchors. You can also view product information related to the category: Misc. Connectors for Engineered Wood
The MPAI is a solution for wood-to-concrete and wood-to-masonry connections which satisfies code requirements. This purlin anchor is specifically designed for open-web truss joint connections to concrete or masonry walls. The MPAI features minimum embedment line indicator for ease of installation.
Edge Distance — minimum concrete edge distance is 5". Minimum concrete-block left-to-right edge distance is 20".
Concrete Block Wall — the minimum wall specifications are:
A — one # 4 vertical rebar, 32" long, 16" each side of anchor
B — two courses of grout-filled block above and below the anchor (no cold joints allowed)
C — a horizontal bond beam with two #4 rebars, 40" long, a maximum of two courses above or below the anchor
D — minimum masonry compressive strength, f'm = 1,500 psi
Model No. | Ga. | L (in.) | Coating/Material | Packaging Qty. |
---|---|---|---|---|
MPAI32 | 14 | 33 1/2 | Zinc Galvanized, G90 | 1 |
MPAI44 | 14 | 45 1/2 | Zinc Galvanized, G90 | 1 |
Max. Ledger Size | Model No. | Strap Length, L (in.) | Embed Length, le (in.) | Uncracked Concrete | Cracked Concrete | GFCMU Wall | Max. Allowable Strap Tension | Deflection at Allowable Load (in.) | ||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Concrete | GFCMU | Required Nails (in.) | Tension | Required Nails (in.) | Tension | Required Nails (in.) | Tension | |||||
4x Ledger | MPAI32 | 33 1/2 | 5 1/2 | (16) 0.148 x 1 1/2 | 2,885 | (16) 0.148 x 1 1/2 | 2,885 | (16) 0.148 x 1 1/2 | 2,355 | NA | 0.167 | |
MPAI44 | 45 1/2 | 5 1/2 | (16) 0.148 x 1 1/2 | 2,885 | (16) 0.148 x 1 1/2 | 2,885 | (24) 0.148 x 1 1/2 | 2,865 | NA | 0.167 |
See Footnotes1 below
Max. Ledger Size | Model No. | Strap Length, L (in.) | Embed Length, le (in.) | Uncracked Concrete | Cracked Concrete | GFCMU Wall | Max. Allowable Strap Tension | Deflection at Allowable Load (in.) | ||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Concrete | GFCMU | Required Nails (in.) | Tension | Required Nails (in.) | Tension | Required Nails (in.) | Tension | |||||
4x Ledger | MPAI32 | 33 1/2 | 5 1/2 | (16) 0.148 x 1 1/2 | 2,885 | (16) 0.148 x 1 1/2 | 2,885 | (16) 0.148 x 1 1/2 | 2,355 | 3,205 | 0.167 | |
MPAI44 | 45 1/2 | 5 1/2 | (16) 0.148 x 1 1/2 | 2,885 | (16) 0.148 x 1 1/2 | 2,885 | (24) 0.148 x 1 1/2 | 2,865 | 3,205 | 0.167 |
Footnotes1
DWG | DXF | RFA | IFC | SAT | |||
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