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α corner
=
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1 + c a2 c a1
4
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17.4.4.1 For a single headed anchor with deep embedment close to an edge ( h ef > 2.5c a1
), the nominal side-face blowout strength , N sb , shall not exceed
N sb
= 160c a1
A brg λ a f ́c ( 17.4.4.1 )
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PROFIS Engineering only performs side-face blowout calculations for the cast-in anchors in its portfolio . When modeling a single anchor in tension , the side-face blowout strength for a single anchor ( N sb
) is calculated per Eq . ( 17.4.4.1 ), and modified by the factor ( 1 + c a2
/ c a1 )/ 4 if a corner formed by the fixed edge distances c a1 and c a2 exists . PROFIS Engineering designates this factor “ α corner
”. The parameter c a2 corresponds to the fixed edge perpendicular to c a1
.
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If c a2 for the single headed anchor is less than 3c a1
, the value of N sb shall be multiplied by the factor ( 1 + c a2
/ c a1 )/ 4 , where 1.0 ≤ c a2
/ c a1 ≤ 3.0 .
PROFIS Engineering permits h ef -values ranging between 4d anchor and 25 ” to be input for the cast-in anchors in its portfolio
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The PROFIS Engineering cast-in anchor portfolio is as follows :
• AWS D1.1 Type B headed studs : ( 1 / 2 ” – 7 / 8 ” nominal diameter )
• ASTM F1554 hex head bolt , Gr . 36 , Gr . 55 , Gr . 105 : ( 1 / 2 ” – 1 1 / 2 ” nominal diameter )
• ASTM F1554 heavy hex head bolt , Gr . 36 , Gr . 55 , Gr . 105 : ( 1 / 2 ” – 2 ” nominal diameter )
• ASTM F1554 square head bolt , Gr . 36 , Gr . 55 , Gr . 105 : ( 1 / 2 ” – 1 1 / 2 ” nominal diameter )
• ASTM F1554 heavy square head bolt , Gr . 36 , Gr . 55 , Gr . 105 : ( 1 / 2 ” – 1 1 / 2 ” nominal diameter )
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Reference the Variables section of the report for more information on the parameters c a1 and c a2
.
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Reference the Equations , Calculations and Results section of the report for more information on the parameter N sb
.
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