![]() ![]() If a group ( n anchor > 1) and shear loads or torsional moments act and annular gaps are present, DesignFiX responds with an error message stating that the annular gaps have to be filled or have to be eliminated by other suitable means. In this case, according to ETAG 001, Annex C, section 4.2.2.1, the design method does not apply because the hole diameters are too large. ![]() The relevant approval does not contain any information about the hole Diameters.V Rk,s ( V Rk,s = characteristic resistance of a single anchor for steel failure under shear load according to the relevant ETA).This ensures that the resistance of the entire group does not exceed the value 2 If a group ( n anchor > 2) and shear loads or torsional moments and annular gaps are present, then DesignFiX reduces the characteristic resistance of an anchor to: Therefore, for fastenings with more than one anchor, the characteristic resistance of the group for steel failure V g Rk,s should be limited to The relevant ETA contains the note: The conditions in ETAG 001, Annex C, clauses 4.2.2.1a) and 4.2.2.2b) are not met, as the hole diameters in the fixture are greater than the values in Annex C, Table 4.1.In this case, the distribution of the shear loads and torsional moments on the individual anchors of a group and the design are performed in DesignFiX according to ETAG 001, Annex C without restrictions. The relevant ETA contains the note: The design method according to ETAG 001, Annex C, Section 4.2.2 also applies to the hole diameters df specified in the annexes.The ETAs then differentiate between the following three cases: Due to their thread diameter, concrete screws usually require larger hole diameters than given in Table 1. ![]()
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