AKRX3

Angle bracket

These brackets allow optimum connection between wood and other building materials such as concrete and steel. This is an economic connection that can be used in many areas. AKR AKR-L and vary in the screw hole.

AKR bracket is 3 mm thick and the edges are reinforced with rib

CE Marking
ETA
Service class 2
Electrogalvanized steel 20 µm
Indoor
EPD

Product Details

Images

Fixation poutre sur dalle béton
Fixation d'équerre renforcée pour ossature bois avec SDS

Features

Material

Steel quality:
• S 250 GD + Z 275 according to DIN EN 10346

Corrosion protection:
• 275 g / m galvanized on both sides 20mm


 

Benefits

  • Load capacity in all directions
  • Optimised capacities for partnailing and fullnailing
  • One or two-sided connections
  • Possible mounting with distance from the support at  tension connections
  • Optimised bolt utilisation

Application

Applicatons

Supporting member:

Concrete, steel

Supported member:

Solid wood, engineered wood

Scope

The AKR brackets allow optimum connection between wood and other building materials such as concrete and steel.

Technical Data

Dimensions

Product Dimensions

References Tun / DB nr. NOB nr. Product Dimensions [mm] Box Quantity Weight [kg]
A B C t Joist Holes flange B
Ø5 Ø13.5 Ø5 Ø11 Ø13.5 Ø13.5x25
AKR95X318622255116590295856539-211-250.24
AKR95X3L1870243-95856539-21-1250.24
AKR135X318592995116588313585653141211-250.3
AKR135X3L1870241-1358565314121-1250.3
AKR165X3--16585653151211-250.37
AKR165X3L--1658565315121-1250.37
AKR205X3--20585653202211-250.43
AKR205X3L--2058565320221-1250.43
AKR245X3--24585653222211-250.49
AKR245X3L--2458565322221-1250.49
AKR285X318622245116589828585653263211-250.56
AKR285X3L1870242-2858565326321-1250.5

Below you will find load details to the nail pattern: fullnailing, partnailing and post connection. Further connection options, see the corresponding ETA.

Simplified characteristic capacities - Wood to concrete - Full nailing - 1 bracket per connection

References Number of Fasteners Simplified characteristic capacities - 1 angle bracket per connection [kN]
Joist Flange B R1.k*** R2.k = R3.k
Qty Type Qty Type
AKR95X3L8CNA4.0x501Ø12**8.72.8
AKR135X3L13CNA4.0x501Ø12**15.54.6
AKR285X3L25CNA4.0x501Ø12**15.34.4

** The bolt design resistance requirement R#,d is determined from (bolt factor x connection design load F#,d) for the required load direction and fastener. Refer to the Simpson Strong-Tie anchor product range for suitable anchors. Typical anchor solutions are BOAXII, SET-XP, WA, AT-HP, depending on the concrete type, spacing and edge distances.

*** The published characteristic capacity is based on instantaneous load duration and service class 2 according to EC5 (EN 1995) – kmod = 1,1. For other load duration and service class, please refer to the ETA to get more accurate capacities

Simplified characteristic capacities - Wood to concrete - Partial nailing - 1 bracket per connection

References Number of Fasteners Simplified characteristic capacities - 1 bracket per connection [kN]
Joist Flange B R1.k*** R2.k = R3.k
Qty Type Qty Type
AKR95X3L5CNA4.0x501Ø12**5.13.6
AKR135X3L9CNA4.0x501Ø12**10.76.6
AKR285X3L14CNA4.0x501Ø12**13.25.5

** The bolt design resistance requirement R#,d is determined from (bolt factor x connection design load F#,d) for the required load direction and fastener. Refer to the Simpson Strong-Tie anchor product range for suitable anchors. Typical anchor solutions are BOAXII, SET-XP, WA, AT-HP, depending on the concrete type, spacing and edge distances.

*** The published characteristic capacity is based on instantaneous load duration and service class 2 according to EC5 (EN 1995) – kmod = 1,1. For other load duration and service class, please refer to the ETA to get more accurate capacities

Simplified characteristic capacities - Post mounting to concrete - 1 bracket per connection

References Number of Fasteners Simplified characteristic capacities - 1 bracket per connection [kN]
Joist Flange B R1.k*** R2.k = R3.k
Qty Type Qty Type
AKR95X3L5CNA4.0x501Ø12**5.83.9
AKR135X3L8CNA4.0x501Ø12**10.66.2
AKR285X3L22CNA4.0x501Ø12**13.25.6

** The bolt design resistance requirement R#,d is determined from (bolt factor x connection design load F#,d) for the required load direction and fastener. Refer to the Simpson Strong-Tie anchor product range for suitable anchors. Typical anchor solutions are BOAXII, SET-XP, WA, AT-HP, depending on the concrete type, spacing and edge distances.

*** The published characteristic capacity is based on instantaneous load duration and service class 2 according to EC5 (EN 1995) – kmod = 1,1. For other load duration and service class, please refer to the ETA to get more accurate capacities

Characterisitic capacities - Full nailing

References Joist Number of Fasteners Characteristic capacities - 2 brackets per connection [kN]
Joist Flange B R1.k R2.k = R3.k R4.k = R5.k
Qty Type Qty Type CNA4.0x40 CNA4.0x50 CNA4.0x60 CNA4.0x40 CNA4.0x50 CNA4.0x60 CNA4.0x40/50/60
AKR95X318CNA*1Ø12*min (17.55 ; 25.04/kmod + 13.2)min (22.64 ; 25.04/kmod + 17.6)min (26.48 ; 25.04/kmod + 22)56.26.915.75 / kmod
AKR95X3L18CNA*1Ø12**min (13.31 ; 25.04/kmod + 8.92)min (17.4 ; 25.04/kmod + 11.89)min (20.89 ; 25.04/kmod + 14.87)4.45.66.4-
AKR135X3513CNA*1Ø12**min (31.78 ; 25.04/kmod + 8.69)min (40.69 ; 25.4/kmod + 11.58)min (46.92 ; 25.04/kmod + 14.48)810.111.215.75 / kmod
AKR135X3L513CNA*1Ø12**min (24.88 ; 25.04/kmod + 5.87)min (32.34 ; 25.4/kmod + 7.83)min (38.36 ; 25.04/kmod + 9.78)7.29.110.4-
AKR165X3------------
AKR165X3L------------
AKR205X31014CNA*1Ø12**min (33.42 ; 25.04/kmod + 8.68)min (42.86 ; 25.04/kmod + 11.58)min (49.6 ; 25.04/kmod + 14.48)7.810.111.815.75 / kmod
AKR205X3L1014CNA*1Ø12**min (25.96 ; 25.04/kmod + 5.86)min (33.78 ; 25.04/kmod + 7.82)min (40.2 ; 25.04/kmod + 9.78)6.189.6-
AKR245X3------------
AKR245X3L------------
AKR285X31525CNA*1Ø12**min (45.25 ; 25.04/kmod + 8.69)min (58.98 ; 25.04/kmod + 11.58)min (70.31 ; 25.04/kmod + 14.48)8.911.614.115.75 / kmod
AKR285X3L1525CNA*1Ø12**min (32.96 ; 25.04/kmod + 5.87)min (43.42 ; 25.04/kmod + 7.83)min (52.87 ; 25.04/kmod + 9.78)6.68.710.7-

* Refer to Characteristic Capacity table columns for type of fasteners that can be used in Flange A. Capacities vary depending on fastener type used.

** The bolt design resistance requirement R#,d is determined from (bolt factor x connection design load F#,d) for the required load direction and fastener. Refer to the Simpson Strong-Tie anchor product range for suitable anchors. Typical anchor solutions are BOAXII, SET-XP, WA, AT-HP, depending on the concrete type, spacing and edge distances.

Characteristic capacities - Partial nailing

References Joist Number of Fasteners Characteristic capacities - 2 brackets per connection [kN]
Joist Flange B R1.k R2.k = R3.k R4.k = R5.k
Qty Type Qty Type CNA4.0x40 CNA4.0x50 CNA4.0x60 CNA4.0x40 CNA4.0x50 CNA4.0x60 CNA4.0x40/50/60
AKR95X335CNA*1Ø12**min (10.3 ; 25.04/kmod + 12.62)min (13.34 ; 25.04/kmod + 16.82)min (15.72 ; 25.04/kmod + 21.04)3.244.515.75 / kmod
AKR95X3L35CNA*1Ø12**min (7.7 ; 25.04/kmod + 8.52)min (10.1 ; 25.04/kmod + 11.36)min (12.18 ; 25.04/kmod + 14.22)2.93.64.1-
AKR135X369CNA*1Ø12**min (21.19 ; 25.04/kmod + 8.69)min (27.21 ; 25.04/kmod + 11.58)min (31.54 ; 25.04/kmod + 11.58)5.97.58.415.75 / kmod
AKR135X3L69CNA*1Ø12**min (16.39 ; 25.04/kmod + 5.87)min (21.35 ; 25.04/kmod + 7.83)min (25.45 ; 25.04/kmod + 9.78)5.26.67.6-
AKR165X31111CNA*1Ø12**min (29.22 ; 25.04/kmod + 8.68)min (37.14 ; 25.04/kmod + 11.58)min (42.32 ; 25.04/kmod + 14.48)7.1910.415.75 / kmod
AKR165X3L1111CNA*1Ø12**min (23.62 ; 25.04/kmod + 5.86)min (30.5 ; 25.04/kmod + 7.82)min (35.76 ; 25.04/kmod + 9.78)5.87.58.8-
AKR205X3148CNA*1Ø12**min (17.08 ; 25.04/kmod + 1.6)min (22.08 ; 25.04/kmod + 2.14)min (25.9 ; 25.04/kmod + 2.68)5.57815.75 / kmod
AKR205X3L148CNA*1Ø12**min (12.86 ; 25.04/kmod + 1.08)min (16.84 ; 25.04/kmod + 1.44)min (20.28 ; 25.04/kmod + 1.82)4.65.96.9-
AKR245X3209CNA*1Ø12**min (14.28 ; 25.04/kmod + 3.14)min (18.7 ; 25.04/kmod + 4.18)min (22.54 ; 25.04/kmod + 5.22)5.77.48.815.75 / kmod
AKR245X3L209CNA*1Ø12**min (10.22 ; 25.04/kmod + 2.12)min (13.5 ; 25.04/kmod + 2.82)min (16.54 ; 25.04/kmod + 3.52)4.55.97.1-
AKR285X31714CNA*1Ø12**min (27.93 ; (25.04/kmod + 3.93)min (36.23 ; 25.04/kmod + 5.24)min (42.8 ; 25.04/kmod + 6.55)5.57.38.815.75 / kmod
AKR285X3L1714CNA*1Ø12**min (20.71 ; (25.04/kmod + 2.66)min (27.2 ; 25.04/kmod + 3.54)min (32.91 ; 25.04/kmod + 4.43)4.15.56.7-

* Refer to Characteristic Capacity table columns for type of fasteners that can be used in Flange A. Capacities vary depending on fastener type used.

** The bolt design resistance requirement R#,d is determined from (bolt factor x connection design load F#,d) for the required load direction and fastener. Refer to the Simpson Strong-Tie anchor product range for suitable anchors. Typical anchor solutions are BOAXII, SET-XP, WA, AT-HP, depending on the concrete type, spacing and edge distances.

Characteristic capacities - Post connection

References Joist Number of Fasteners Characteristic capacities - 2 brackets per connection [kN]
Joist Flange B R1.k R2.k = R3.k R4.k = R5.k
Qty Type Qty Type CNA4.0x40 CNA4.0x50 CNA4.0x60 CNA4.0x40 CNA4.0x50 CNA4.0x60 CNA4.0x40/50/60
AKR95X325CNA*1Ø12**min (11.5 ; 25.04/kmod + 5.97)min (14.78 ; 25.04/kmod + 7.97)min (17.19 ; 25.04/kmod + 9.96)3.54.4515.75 / kmod
AKR95X3L25CNA*1Ø12**min (8.83 ; 25.04/kmod + 4.04)min (11.52 ; 25.04/kmod + 5.38)min (13.76 ; 25.04/kmod + 6.73)3.13.94.5-
AKR135X378CNA*1Ø12**min (20.49 ; 25.04/kmod + 3.93)min (26.13 ; 25.04/kmod + 5.24)min (29.94 ; 25.04/kmod + 6.55)5.677.915.75 / kmod
AKR135X3L78CNA*1Ø12**min (16.31 ; 25.04/kmod + 2.66)min (21.13 ; 25.04/kmod + 3.54)min (24.91 ; 25.04/kmod + 4.43)4.96.27.1-
AKR165X3------------
AKR165X3L------------
AKR205X3128CNA*1Ø12**min (14.3 ; 25.04/kmod + 3.94)min (18.64 ; 25.04/kmod + 5.24)min (22.24 ; 25.04/kmod + 6.56)4.86.27.215.75 / kmod
AKR205X3L128CNA*1Ø12**min (10.4 ; 25.04/kmod + 2.66)min (13.7 ; 25.04/kmod + 3.54)min (16.68 ; 25.04/kmod + 4.42)3.855.9-
AKR245X3------------
AKR245X3L------------
AKR285X31622CNA*1Ø12**min (41.66 ; 25.04/kmod + 3.93)min (54.19 ; 25.04/kmod + 5.24)min (64.34 ; 25.04/kmod + 6.55)5.87.69.315.75 / kmod
AKR285X3L1622CNA*1Ø12**min (30.58 ; 25.04/kmod + 2.66)min (40.23 ; 25.04/kmod + 3.54)min (48.85 ; 25.04/kmod + 4.43)4.25.66.9-

* Refer to Characteristic Capacity table columns for type of fasteners that can be used in Flange A. Capacities vary depending on fastener type used.

** The bolt design resistance requirement R#,d is determined from (bolt factor x connection design load F#,d) for the required load direction and fastener. Refer to the Simpson Strong-Tie anchor product range for suitable anchors. Typical anchor solutions are BOAXII, SET-XP, WA, AT-HP, depending on the concrete type, spacing and edge distances.

Factor for bolt calculation at 2 AKR connections
Load directionkaxklat
F1      Bolt 1 and 20,50
F2/3   Bolt 1 and 2 0,20,5
F4/5   Bolt 1 from F1,d10
F4/5   Bolt 20,51


For load direction F4/5 applies: An additional tensile load (F1,d) must be received and verified for the left AKR, and for both bolts.

 

Combined load:

 

Characteristic capacities - Timber beam to concrete - Ø12 connector screws - 1 angle bracket

References Product capacities - Timber beam to rigid support - Ø12 connector screws - 1 angle bracket
Fasteners Characteristic capacities - Timber C24 - 1 angle bracket per connection [kN]
Flange A Flange B R1.k R2.k = R3.k
Qty Type Qty Type SSH12x80 SSH12x80
AKR285X3L3SSH1Ø1213.3-

Refer to the Simpson Strong-Tie anchor product range for suitable anchors. Typical anchor solutions are BOAXII, SET-XP, WA, AT-HP, depending on the concrete type, spacing and edge distances.

Characteristic Capacities - UK

References Fasteners Characteristic Values - C24 Timber on Concrete [kN]
Flange A Flange B R1,k R2,k
Qty Qty CNA4.0x50 CNA4.0x60 CNA4.0x50 CNA4.0x60
AKR95X3L51 x Ø125.76.822.3
AKR135X3L81 x Ø1210.512.43.13.6
AKR285X3L221 x Ø1213.113.62.83.5

The published characteristic capacity is based on short term load duration and service class 2 according to EC5 (EN 1995) – kmod = 1.1.  For other load duration and service class, please refer to the ETA.

Characteristic capacities - Timber post to concrete slab - 1 angle bracket

References Product capacities - Timber post to concrete slab - 1 angle bracket
Fasteners Nail pattern Characteristic capacities
Flange A Flange B R1.k R2.k = R3.k R4.k R5.k R6.k
Qty Type Qty Type
AKR205X3L--2Ø121Ø10226,1/kmod0,4/kmod5,4/kmod
AKR245X3L--2Ø121Ø10226,1/kmod0,4/kmod5,4/kmod
AKR285X3L15.34.42Ø121Ø10226,1/kmod0,4/kmod5,4/kmod

Several assumpotions are considered for the values shown in the table above (refer to ETA-07/0285 p 135 - Annex D61 - Characteristic Capacities for nailing pattern 22 - tables D61-11 to 15 for further details and other values) :

For R1,k capacities:

  • Ø10 fastener in timber post (flange B) is placed in the upper hole => distance e between timber fasteners and AKR horizontal flange is 65 mm
  • distance X1 between timber and concrete is 5 mm

For R2,k=R3,k capacities:

  • Ø10 fastener in timber post (flange B) is placed in the upper hole => distance e between timber fasteners and AKR horizontal flange is 65 mm

For R4,k capacities:

  • distance X1 between timber and concrete is 5 mm

For R6,k capacities:

  • Timber post width in contact with AKR is considered as 30 mm larger than the AKR width

Simplified characteristic capacities - Timber to Timber - Partial nailing - 1 bracket per connection

References Simplified characteristic capacities - Timber to timber - Partial nailing - 1 angle bracket [kN]
Fasteners Characteristic capacities [kN] Nail pattern
Flange A Flange B R1.k*** R2.k = R3.k
Qty Type Qty Type
AKR95X3L2CNA4.0x501SSH12.05.8-2
AKR135X3L8CNA4.0x501SSH12.010.6-7
AKR285X3L14CNA4.0x501SSH12.013.2-17

*** The published characteristic capacity is based on instantaneous load duration and service class 2 according to EC5 (EN 1995) – kmod = 1,1. For other load duration and service class, please refer to the ETA to get more accurate capacities. The capacity of SSH12.0 screw has to be checked.

SImplified Characteristic capacities - Timber post to timber - 1 angle bracket

References Simplified characteristic capacities - Post to timber - 1 angle bracket
Fasteners Characteristic capacities Nail pattern
Flange A Flange B R1.k*** [kN]
Qty Type Qty Type Thread length in support [mm]
AKR95X3L5CNA4.0X501SSH12.0855.82
AKR135X3L8CNA4.0X501SSH12.08510.67
AKR285X3L14CNA4.0X501SSH12.011013.217

The connection can be made with a gap between the bottom flange of the bracket and timber, but the whole threaded part of the screw shall be in the substructure.

The connection is redundant, the full capacity of the screw may be considered. If the connection is isolated, then half the capacity of the screw shall be considered for AKR135X3L and AKR285X3L.

*** The published characteristic capacity is based on instantaneous load duration and service class 1 according to EC5 (EN 1995) – kmod = 1,1. For other load duration and service class, please refer to the ETA to get more accurate capacities.

Installation

Installation

Fasteners

  • The fixing needs to be done with CNA4,0xl threaded nails or CSA5,0xl screws.
  • On concrete or steel by an wedge anchor M12 and a washer Ø24.
  • SSH Ø 12 x 80 mm (timber to concrete)
  • It is possible to single or double sided connections.

Installation

• Fasten nails or screws CNA4,0xl CSA5,0xl.Pro installation in concrete anchor bolt M12

Certification

Declaration of Performance (DoP)

European Technical Assessment (ETA)

CAD and BIM Library

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Contact

Simpson Strong-Tie Poland

Simpson Strong-Tie Etanco P.S.A.

ul. Karczunkowska 42
02-871 Warszawa
Poland