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BT

Concealed joist hanger BT

The beam hanger are used as concealed connections of secondary beams on main beams or on posts.

Technical Data Sheet
CE Marking
CE Marking
ETA
ETA
Service class 2
Service class 2
Fire resistance R 60
Fire resistance R 60
Electrogalvanized steel Z275
Electrogalvanized steel Z275
EPD
EPD
Available in Connector Selector
Available in Connector Selector
BT_SSTBP_homepage_DK_da
bt4-fritlagt-grey-jpg.jpg

Product Details

Images

BT4.jpg
bt4-fritlagt-grey-jpg.jpg

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

  • Connections with inclinations up to 45 ° can be executed.
  • The mounting slot allows a safe and convenient hanging of the secondary beam.
  • With this type of mounting, additional supports are no longer required.
  • Fire protection according to DIN 4102.

Application

Applicatons

Supporting member:
Solid wood, engineered wood

Supported member:
Solid wood, engineered wood

When to Use

• for connecting secondary beams of wood or wooden materials to the main support structure of wood / wood materials.

Technical Data

Product Dimensions

Dimensions

Product Dimensions
Product Dimensions
ReferenceConnector Dimensions
Joist Size[mm]Product Dimensions[mm]Header holes[mm]Joist Holes[mm]Other
WidthHeight[mm]A[mm]B[mm]C[mm]t1[mm]t2[mm]RoundRound Qty per BoxWeight[kg]
Min[mm]Min[mm]Ø5Ø13[mm]
BT280-B60312280106623652710.01.8
BT320-B60352320106623660810.02
BT360-B6039236010662366898.02.3
BT440-B60472440106623684116.02.8
BT480-B60512480106623692126.03
BT560-B605925601066236108145.03.5
BT600-B606326001066236116155.03.8

Combined load:

\sum\frac{F_{i,d}} {R_{i,d}}\le1

Wood/wood fastening- Characteristic values in kn

ReferenceHanger capacity
Product Capacities[kN]
Number of FastenersCharacteristic capacities - Timber C24[kN]
HeaderJoistR1,k (2)R2,k (2)
QtyTypeQtyTypeDowels length[mm]Dowels length[mm]
60801001201401606080100120140160
BT280-B52.0CNA4.0x507.0STD1264.66871.776.481.787.255.458.361.565.57074.7
BT320-B60.0CNA4.0x508.0STD12778185.591.297.5104.167.470.974.879.885.391.1
BT360-B68.0CNA4.0x509.0STD1289.193.899105.8113.3121.179.283.48894100.7107.6
BT440-B84.0CNA4.0x5011.0STD12112.1118125.2134.4144.4154.7101.9107.3113.8122.2131.3140.6
BT480-B92.0CNA4.0x5012.0STD12122.8129.3137.7148.2159.7171.3112.6118.5126.2135.8146.4157
BT560-B108.0CNA4.0x5012.0STD12122.8129.3138.4150.7164.9179.1122.8129.3138.4150.7164.9179.1
BT600-B116.0CNA4.0x5012.0STD12122.8129.3138.4150.7164.9180.4122.8129.3138.4150.7164.9180.4

The joist shall have as minimum a width = length of steel dowel.

For beams with a slope β the capacities shall be multiply  with the factor.

β 0° 15° 30° 45°
factor 1.0 0.95 0.9 0.85

R2,k capacities are 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.

More detailed information are given in the ETA.

Product characteristic capacities - Timber beam to timber beam - R3.k and R4.k

ReferenceHanger capacity
Product Capacities[kN]
Number of FastenersCharacteristic capacities - Timber C24[kN]
HeaderJoistR4,k[kN]R3,k
QtyTypeQtyTypeDowels length[mm]
6080100120140160
BT280-B52.0CNA4.0x507.0STD1222.84.86.17.38.59.911.3
BT320-B60.0CNA4.0x508.0STD1226.25.56.88.39.711.112.9
BT360-B68.0CNA4.0x509.0STD1229.66.17.69.210.912.414.4
BT440-B84.0CNA4.0x5011.0STD1236.57.39.11113.215.217.2
BT480-B92.0CNA4.0x5012.0STD1239.97.99.811.914.316.618.7
BT560-B108.0CNA4.0x5012.0STD1246.79.211.313.816.519.121.5
BT600-B116.0CNA4.0x5012.0STD1250.19.812.114.717.620.423

The joist shall have as minimum a width = length of steel dowel.

The capacities R4 are for all length of steel dowel.

Product characteristic capacities - Timber beam to timber post

ReferenceHanger capacityConnector Dimensions
Product characteristic capacities - Timber beam to timber post - partial nailingHeader Dimensions[mm]
Number of FastenersProduct characteristic capacities - Timber C24[kN]Post Width
HeaderJoistR₁,ₖR2,kMin[mm]
QtyTypeQtyTypeDowels length[mm]Dowels length[mm]
60801001201401606080100120140160
BT280-B28.0CNA4.0x507.0STD125254.757.560.5626244.646.949.351.953.153.196
BT320-B32.0CNA4.0x508.0STD1261.865.168.170.770.970.954.15759.661.9626296
BT360-B36.0CNA4.0x509.0STD1271.775.578.579.879.879.863.767.169.870.970.970.996
BT440-B44.0CNA4.0x5011.0STD129195.897.597.597.597.582.787.188.688.688.688.696
BT480-B48.0CNA4.0x5012.0STD12100.3105.6106.4106.4106.4106.491.996.897.597.597.597.596
BT560-B56.0CNA4.0x5012.0STD12109.9115.7120.3124124.1124.1109.9115.7120.3124124.1124.196
BT600-B60.0CNA4.0x5012.0STD12113.8119.8125130.5133133113.8119.8125130.513313396

The joist shall have as minimum a width = length of steel dowel.

For beams with a slope β the capacities shall be multiply with the factor.

β 0° 15° 30° 45°
factor 1.0 0.95 0.9 0.85

The capacities from this table are also valid for partial nailing beam to beam.

R2,k capacities are 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.

More detailed information are given in the ETA.

 

Product characteristic capacities - Timber beam to timber post - R3.k and R4.k

ReferenceHanger capacityConnector Dimensions
Product characteristic capacities - Timber beam to timber post - partial nailingHeader Dimensions[mm]
Number of FastenersProduct characteristic capacities - Timber C24[kN]Post Width
HeaderJoistR4,k[kN]R3,kMin[mm]
QtyTypeQtyTypeDowels length[mm]
6080100120140160
BT280-B28.0CNA4.0x507.0STD1213.74.55.66.77.78.910.196
BT320-B32.0CNA4.0x508.0STD1215.75.26.47.78.810.211.596
BT360-B36.0CNA4.0x509.0STD1217.65.87.28.69.911.512.996
BT440-B44.0CNA4.0x5011.0STD1221.67.18.810.512.11415.896
BT480-B48.0CNA4.0x5012.0STD1223.57.79.511.513.215.317.296
BT560-B56.0CNA4.0x5012.0STD1227.4911.113.415.417.820.196
BT600-B60.0CNA4.0x5012.0STD1229.49.711.914.416.519.121.596

The joist shall have as minimum a width = length of steel dowel.

The capacities R4.k are for all length of steel dowel.

Installation

Installation

Fasteners

  • CNA4,0xl threaded nails
  • or CSA5,0xl screws and rod dowels ∅12mm

Certification

Declaration of Performance (DoP)

uk-dop-e07-0245-05-s-2.pdf
Show history
uk-dop-e07-0245-issue-4.pdf
uk-dop-e07-0245-issue-3.pdf
uk-dop-e07-0245-issue-2.pdf
uk-dop-e07-0245-issue-1.pdf

European Technical Assessment (ETA)

eta-07-0245-2025-01-15.pdf
Show history
eta-07-0245-2018-08-15.pdf
eta070245-sst-je-ch-r5-2016-rev-a.pdf

Environmental Product Declarations (EPD)

epd-certificate-sst-connectors

CAD and BIM Library

2D

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BT320-B

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BT360-B

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BT560-B

BT600-B

BT320-B

BT480-B

BT280-B

BT440-B

BT360-B

3D Simplified

BT560-B

BT600-B

BT320-B

BT480-B

BT280-B

BT440-B

BT360-B

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Simpson Strong-Tie Poland

Simpson Strong-Tie Etanco P.S.A.

ul. Karczunkowska 42
02-871 Warszawa
Poland

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