|
ψ ed , Na
= 0.7 + 0.3
|
c a , min ≤1 . 0
c Na
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17.4.5.4 The modification factor for edge effects for single adhesive anchors or adhesive anchor groups loaded in tension , ψ ed , Na
, shall be calculated as
If c a , min
≥ c Na , then ψ ed , Na
= 1.0 ( 17.4.5.4a )
If c a , min < c Na
, then ψ ed , Na = 0.7 + 0.3
c a , min ( 17 . 4 . 5 . 4b )
c Na
|
ψ ed , Na is a modification factor that is used to account for fixed edge distances less than c Na
, where c Na corresponds to a projected distance from the center of the adhesive anchor element being modeled in PROFIS Engineering . The illustration below shows how the assumed area of influence ( A Na
) would be defined for an adhesive anchoring application being modeled with two fixed edges ( c a1 and c a2 ) that are both less than c Na , and with c a1 being less than c a2 . The smallest edge distance ( c a1 ) corresponds to the parameter c a , min
, and would be used to calculate the modification factor ψ ed , Na .
|
|
|
ψ ed , Na
= 0.7 + 0.3 ( c a1 / c Na
)
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Reference the Variables section of the PROFIS Engineering report for more information on the following parameter :
c a , min
: Parameter for the smallest fixed edge being modeled
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Reference the Calculations section of the PROFIS Engineering report for more information on the following parameter :
c Na
: Projected distance from an adhesive anchor
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