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MECHANICAL ANCHORS > BOAX-II Expansion Anchor 

Expansion Anchor Systems

BOA-X/BoAX-II with hex nut, washer  BOA-X & BOAX-II_2

Economical anchor for medium-duty loads.

Medium-duty loads 

Features:

  • Approved for use in cracked and non-cracked concrete 
  • Less drilling effort: Anchor diameter = Drill bit diameter 
  • Made in Europe 

Applications:

  • Steel construction 
  • Facades 
  • Railing 
  • Cable trays 
  • Brackets 
  • Ladders 

Material:

Carbon steel, and A4 stainless steel

Finish:

Zinc plated carbon steel and A4 stainless steel

Base Material:

Cracked and non-cracked concrete: C20/25 to C50/60 (B25 to B55)
Also suitable for high density natural stones (sD ≥ 25 N/mm2)

Approval:

ETA-08/0276 - Option 1: M8-M16, carbon steel, zinc plated
ETA-08/0276 - Option 1: M8-M16, A4 stainless steel

Load Range:

Tension: Nperm = 1.8 - 21.4 [kN]
Shear: Vperm = 1.8 - 22.4 [kN]

Product Range:

BoAX-II: M8 - M16, carbon steel, zinc plated and blue passivated
BoAX-II A4: M8 - M16, A4 stainless steel
BoA-X: M6 + M20, carbon steel, zinc plated and blue passivated
BoA-X A4: M6 + M20, A4 stainless steel

Installation:

Installation_BOA-X & BoAX-II 

Carbon steel, zinc plated
Throughbolt BOA-X and BOAX-II

Carbon steel, zinc plated

Permissible loads for single anchors with no infl uencing edge distances or spacings. Loads are calculated using partial safety factors from ETAG 001 and the characteristic anchor and installation data.

Design calculations shall follow the requirements of ETA-08/0276.

Carbon Steel

Installed anchor:

Installedf anchor

  1. The permissible loads have been calculated using the partial safety factors for resistances stated in the ETA-approval and a partial safety factor for actions of gF = 1.4.
    The permissible loads are valid for unreinforced concrete and reinforced concrete with a rebar spacing s ≥ 15 cm and reinforced concrete with a rebar spacing s ≥ 10 cm if the rebar is 10mm or smaller.
     
  2. The permissible shear loads are based on a single anchor without infl uencing concrete edges. For shear loads applied close to an edge (c < 10 hef or < 60 d) concrete edge failure must be checked per ETAG 001, Annex C, design method A. 
  3. Concrete is considered non-cracked when the tensile stress within the concrete is sL + sR ≤ 0. In the absence of detailed verifi cation sR = 3 N/mm2 can be assumed (sL equals the tensile stress within the concrete as a result of external loads, forces on anchors included). 
  4. If spacings or edge distances become smaller than the characteristic values (i.e. s ≤ scr,N and/or c ≤ ccr,N) a calculation per ETAG 001, Annex C, design method A must be performed.
    For details, see ETA-08/0276
     
  5. Not included in the approval ETA-08/0276. 
  6. Type BoA-X 16/95 is not included in ETA-08/0276. Permissible loads in C20/25 to C50/60 cracked concrete: Nperm = 6.4 [kN] ; Vperm = 6,4 [kN].
    Permissible loads in C20/25 to C50/60 non-cracked concrete: Nperm = 10.0 [kN] ; Vperm = 10.0 [kN].
     

A4 stainless steel
Throughbolt BOA-X-A4 AND BOAX-II A4

 A4 stainless steel

Permissible loads for single anchors with no infl uencing edge distances or spacings. Loads are calculated using partial safety factors from ETAG 001 and the characteristic anchor and installation data from this catalogue.

Design calculations shall follow the requirements of ETA-08/0276.

A4 stainless steel

A4 stainless steel

A4 stainless steel

  1. The permissible loads have been calculated using the partial safety factors for resistances stated in the ETA-approval and a partial safety factor for actions of gF = 1.4.
    The permissible loads are valid for unreinforced concrete and reinforced concrete with a rebar spacing s ≥ 15 cm and reinforced concrete with a rebar spacing s ≥ 10 cm if the rebar is 10mm or smaller.
     
  2. The permissible shear loads are based on a single anchor without infl uencing concrete edges. For shear loads applied close to an edge (c < 10 hef or < 60 d) concrete edge failure must be checked per ETAG 001, Annex C, design method A. 
  3. Concrete is considered non-cracked when the tensile stress within the concrete is sL + sR ≤ 0. In the absence of detailed verifi cation sR = 3 N/mm2 can be assumed (sL equals the tensile stress within the concrete as a result of external loads, forces on anchors included). 
  4. If spacings or edge distances become smaller than the characteristic values (i.e. s ≤ scr,N and/or c ≤ ccr,N) a calculation per ETAG 001, Annex C, design method A must be performed.
    For details, see ETA-08/0276.
     
  5. Not included in the approval ETA-08/0276. 

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