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Anchor Channel JRA W 74/48 for extremely high static and dynamic loads Reinforced Concrete Anchors
NRd = VRd = 56.0 kN ΔF = 30.0 kN
Anchoring length lbnet/lbd according to DIN 1045-1: 2008-08 or lbd according to DIN EN 1992-1-1:2011-01 with DIN EN 1992-1-1/ NA: 2011-01
l bnet H
Ltot
H/2
Anchor channel type JRA with reinforced concrete anchors welded on both sides.
JORDAHL® anchor channels JRA consist of W 74/48 profiles with reinforced concrete anchors welded on the sides. Other profile sizes can also be provided with reinforced concrete anchors. Load capacity JRA W 74/48 is suitable for absorbing extremely high static and dynamic loads. The construction has been tested by the German Federal Institute for Materials Testing under number 2.2/20247. On the basis of experimental data with a load range of Fo – Fu = 38 kN, with an upper load of Fo = 40 kN these anchor channels have passed the long-term stress capability test for fatigue load ranges of up to 30 kN. Applications The system can be used for different application areas: Crane and conveyor systems Power plants Protective room constructions Material Anchor s ≤ 250 mm
Profile W 74/48
1) 2)
22
Material
Design
Steel
Hot-dip galvanised ≥ 50 μm
At anchor length L total = 40 cm The anchors consist of B500B
⵰ [mm]
Material
14
B500B 2)
Weight channel incl. anchor 1) [kg/m] 14.0
Concrete
The reinforcing bar must be anchored with anchoring length lbnet/lbd in the component compression zone. The anchoring length is calculated from half the component height plus anchoring length lbnet/lbd and must be specified with the order.
Anchoring length lbnet/lbd [cm] B500B, 14; good bonding conditions Straight rod ends
Hooks, angled hooks
C 20/25
28
19
C 30/37
21
15
C 35/45
19
14
Length of the reinforced concrete anchor, calculation example L total = H/2 + l bnet/Lbd [cm]
Anchor length Ltotal = Length from the outer edge of the channel profile as far as the top edge of the reinforced concrete anchor. Please specify when ordering. H = Height of the reinforced concrete component = Anchoring length according lbnet/lbd to DIN 1045-1: 2008-08
Note: The reinforced concrete anchors can be included in the shear reinforcement, given suitable components and reinforcement design.
© JORDAHL GmbH | Channels and Accessories | 02-2013