TUBS

Concealed beam hanger TUBS

These concealed hangers ensure a completely invisible assembly. The slot in the head facilitates on-site installation. TUBS, factory bent, are suitable for skewed applications.

CE Marking
ETA
Service class 2
Electrogalvanized steel 20 µm
Fire resistance R 60

Product Details

Images

Joist on joist
Joist on post

Features

Material

  • Steel S250GD + Z275 according to NF EN 10346.
  • Thickness 3.5 mm.
  • Half-hour fire resistance subject to a special installation.

Benefits

Invisible assembly

Mounting on wood or concrete

Optimized implementation complies with Eurocodes

Application

Header member

  • Supporting member: solid wood, glued-laminated wood, composite lumber.
  • Supported member: solid wood, glued-laminated wood, composite lumber.

Applications

  • Joists.
  • Purlins.
  • Supporting beam.

Technical Data

Dimensions

Product Dimensions

References Joist Size [mm] Header dimensions [mm] Product Dimensions [mm] Header holes Joist holes
Width Height Post width A B C t α [°] Ø13 Ø5 Ø12,5
Min Max. Min β=0 Min β≠0 Max. Min Min Max.
TUBS166016016019024088134108603.530852163
TUBS206016020022528088174108603.530852204
TUBS246016024026030088214108603.530852245
TUBS286016028029534088254108603.530852286

Product characteristic capacities - Timber beam to timber beam - full nailing - with slope and skew α=30°

References Product characteristic capacities - Timber beam to timber beam - full nailing - with slope and skew α=30°
Number of Fasteners Product characteristic capacities - Timber C24 [kN]
Header Joist R1,k - Slope β=0° R1,k - Slope β=15° R1,k - Slope β=30° R1,k - Slope β=45°
Qty Type Qty Type Dowels length [mm] Dowels length [mm] Dowels length [mm] Dowels length [mm]
60 80 100 120 140 160 60 80 100 120 140 160 60 80 100 120 140 160 60 80 100 120 140 160
TUBS1616CNA4,0x503STD1215.415.916.717.81920.214.915.316171819.114.514.815.416.217.118.114.114.414.915.616.417.3
TUBS2020CNA4,0x504STD1223.524.325.627.228.930.722.823.424.525.927.429.122.222.623.524.726.127.621.622.222.92425.226.5
TUBS2424CNA4,0x505STD1232.633.535.337.439.842.131.632.333.735.637.739.930.831.332.534.13637.929.930.831.833.334.936.7
TUBS2828CNA4,0x506STD1242.143.345.548.251.153.840.941.743.645.948.551.239.740.642.144.246.548.938.94041.443.245.347.5

R2,k capacities can be calculated as R2,k = R1,k x (nb of dowels - 1) / (nb of dowels).

The top dowel is not considered for the uplift capacities as it is placed in an open hole.

Product characteristic capacities - Timber beam to timber beam - full nailing - with slope and skew α=45°

References Product characteristic capacities - Timber beam to timber beam - full nailing - with slope and skew α=45°
Number of Fasteners Product characteristic capacities - Timber C24 [kN]
Header Joist R1,k - Slope β=0° R1,k - Slope β=15° R1,k - Slope β=30° R1,k - Slope β=45°
Qty Type Qty Type Dowels length [mm] Dowels length [mm] Dowels length [mm] Dowels length [mm]
60 80 100 120 140 160 60 80 100 120 140 160 60 80 100 120 140 160 60 80 100 120 140 160
TUBS1616CNA4,0x503STD1215.415.916.817.919.120.314.915.316.11718.119.214.514.815.416.217.218.214.114.414.915.616.517.4
TUBS2020CNA4,0x504STD1223.624.425.727.329.130.922.923.424.62627.629.322.322.723.624.826.227.721.622.22324.125.326.7
TUBS2424CNA4,0x505STD1232.733.735.537.64042.331.732.433.935.837.940.130.831.432.634.336.238.13030.931.933.435.136.9
TUBS2828CNA4,0x506STD1242.343.545.748.451.253.84141.943.846.248.851.439.840.742.344.446.749.13940.241.643.445.547.7

R2,k capacities can be calculated as R2,k = R1,k x (nb of dowels - 1) / (nb of dowels).

The top dowel is not considered for the uplift capacities as it is placed in an open hole.

Product characteristic capacities - Timber beam to timber beam - full nailing - with slope and skew α=60°

References Product characteristic capacities - Timber beam to timber beam - full nailing - with slope and skew α=60°
Number of Fasteners Product characteristic capacities - Timber C24 [kN]
Header Joist R1,k - Slope β=0° R1,k - Slope β=15° R1,k - Slope β=30° R1,k - Slope β=45°
Qty Type Qty Type Dowels length [mm] Dowels length [mm] Dowels length [mm] Dowels length [mm]
60 80 100 120 140 160 60 80 100 120 140 160 60 80 100 120 140 160 60 80 100 120 140 160
TUBS1616CNA4,0x503STD1215.41616.91819.220.515.41616.91819.220.514.514.815.516.317.318.314.114.41515.716.617.5
TUBS2020CNA4,0x504STD1223.824.525.927.629.331.123.824.525.927.629.331.122.422.823.72526.427.921.722.323.124.225.526.9
TUBS2424CNA4,0x505STD1232.933.935.737.940.242.532.933.935.737.940.242.53131.632.934.636.538.530.231.132.233.735.437.2
TUBS2828CNA4,0x506STD1242.643.846.148.851.553.842.643.846.148.851.553.840.14142.644.747.149.539.340.541.943.845.948.1

R2,k capacities can be calculated as R2,k = R1,k x (nb of dowels - 1) / (nb of dowels).

The top dowel is not considered for the uplift capacities as it is placed in an open hole.

Product characteristic capacities - Timber beam to timber post - full nailing - with slope and skew α=30°

References Product characteristic capacities - Timber beam to timber post - full nailing - with slope and skew α=30°
Number of Fasteners Product characteristic capacities - Timber C24 [kN]
Header Joist R1,k - Slope β=0° R1,k - Slope β=15° R1,k - Slope β=30° R1,k - Slope β=45°
Qty Type Qty Type Dowels length [mm] Dowels length [mm] Dowels length [mm] Dowels length [mm]
60 80 100 120 140 160 60 80 100 120 140 160 60 80 100 120 140 160 60 80 100 120 140 160
TUBS1612CNA4,0x503STD1213.914.415.216.217.318.413.513.914.615.516.517.513.113.41414.715.616.512.71313.514.214.915.8
TUBS2013CNA4,0x504STD1219.720.321.422.322.322.319.119.620.621.722.322.318.618.919.720.721.822.318.118.519.1202122.1
TUBS2416CNA4,0x505STD1227.728.53030.430.430.426.827.528.830.330.430.426.126.627.72930.430.425.32626.928.129.530.4
TUBS2817CNA4,0x506STD1232323232323232323232323231.331.83232323230.531.232323232

R2,k capacities can be calculated as R2,k = R1,k x (nb of dowels - 1) / (nb of dowels).

The top dowel is not considered for the uplift capacities as it is placed in an open hole.

Product characteristic capacities - Timber beam to timber post - full nailing - with slope and skew α=45°

References Product characteristic capacities - Timber beam to timber post - full nailing - with slope and skew α=45°
Number of Fasteners Product characteristic capacities - Timber C24 [kN]
Header Joist R1,k - Slope β=0° R1,k - Slope β=15° R1,k - Slope β=30° R1,k - Slope β=45°
Qty Type Qty Type Dowels length [mm] Dowels length [mm] Dowels length [mm] Dowels length [mm]
60 80 100 120 140 160 60 80 100 120 140 160 60 80 100 120 140 160 60 80 100 120 140 160
TUBS1612CNA4,0x503STD1213.914.415.316.317.418.513.513.914.615.616.617.613.113.41414.815.716.612.71313.514.21515.8
TUBS2013CNA4,0x504STD1219.820.421.522.322.322.319.219.720.621.722.322.318.61919.820.821.922.318.118.519.220.121.122.1
TUBS2416CNA4,0x505STD1227.828.63030.430.430.426.927.628.930.330.430.426.226.727.829.130.430.425.426.12728.329.630.4
TUBS2817CNA4,0x506STD1232323232323232323232323231.431.83232323230.631.332323232

R2,k capacities can be calculated as R2,k = R1,k x (nb of dowels - 1) / (nb of dowels).

The top dowel is not considered for the uplift capacities as it is placed in an open hole.

Product characteristic capacities - Timber beam to timber post - full nailing - with slope and skew α=60°

References Product characteristic capacities - Timber beam to timber post - full nailing - with slope and skew α=60°
Number of Fasteners Product characteristic capacities - Timber C24 [kN]
Header Joist R1,k - Slope β=0° R1,k - Slope β=15° R1,k - Slope β=30° R1,k - Slope β=45°
Qty Type Qty Type Dowels length [mm] Dowels length [mm] Dowels length [mm] Dowels length [mm]
60 80 100 120 140 160 60 80 100 120 140 160 60 80 100 120 140 160 60 80 100 120 140 160
TUBS1612CNA4,0x503STD121414.515.416.417.518.613.61414.715.716.717.713.113.414.114.915.816.712.71313.614.315.116
TUBS2013CNA4,0x504STD1219.920.521.522.322.322.319.319.820.721.822.322.318.719.119.920.921.922.318.218.619.320.221.222.1
TUBS2416CNA4,0x505STD122828.830.130.430.430.427.127.82930.330.430.426.426.927.929.230.430.425.626.327.228.429.730.4
TUBS2817CNA4,0x506STD1232323232323232323232323231.431.83232323230.731.432323232

R2,k capacities can be calculated as R2,k = R1,k x (nb of dowels - 1) / (nb of dowels).

The top dowel is not considered for the uplift capacities as it is placed in an open hole.

Installation

Installation

Fixing

On supporting wood member: TU/TUB/TUBS

  • CNA annular ring-shank nails dia. 4.0 x 50 mm or CSA screws dia. 5.0 x 40 mm.
  • Lag screws and bolts dia. 10 mm only for TUB/TUBS.

On supported member: Steel dowel S235JR type STD12

  • TU12: dia. 8 mm type STD 8.
  • TU16 to 28: dia. 12 mm type STD 12.
  • TUB/TUBS: dia. 12 mm type STD 12.

The length of the dowels is less than or equal to the width of the supported joist.

TU: wood/wood fastening only with nails/screws.
TUB: wood/wood fastening only with nails/screws or lag screws.
TUBS: wood/wood fastening only with nails/screws or lag screws.

Concrete and steel substrate:

It is not recommended to use hangers on concrete or steel substrate as the size of the bolts makes the distance from the edge of the wood to the dowels non-compliant with Eurocode 5.

Installation

  1. Make a vertical notch in the joist end (width 6mm for TU12 and 9mm for TU16 to TU28),
  2. Mark the position of the dowels on the joist before drilling holes - diameter of the hole according to the diameter of the dowel
  3. Insert the top dowel in the joist
  4. Route a  6mm deep pocket in either the joist end or the header. This is not compulsory, it is used to improve the aesthetic of the connection
  5. Fix Install the joist onto the concealed beam hanger by hooking the joist onto the concealed beam hanger.  Top dowel hooks into slotted top hole on the concealed beam hanger.
  6. Install reamining dowels.the concealed beam hanger to the header with nails or screws

Certification

Declaration of Performance (DoP)

European Technical Assessment (ETA)

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Contact

Simpson Strong-Tie Poland

Simpson Strong-Tie Sp. z o.o.

ul. Karczunkowska 42
02-871 Warszawa
Poland