BTC

Concealed Beam Hanger

The BTC is designed for concealed connections between timber joists/beam and the concrete structure. The number of dowels and anchors can be chosen, depending on the applied load. BTC concealed beam hangers are approved to take load in all 3 directions. Therefore beam connections with a roof pitch can also be built in an easy and safe way.

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

Product Details

Images

Features

Material

Steel:

S 250 GD +Z 275 acc. EN 10326

Corrosion protection:

275 g/m2 on both sides - correspond to a zinc layer of approx. 20 μm

Benefits

  • The variety of connection options are given in the ETA 07/0245, here you will find also information of:
  • densities > 350kg/m³
  • different slopes
  • connections of concrete

Application

Suitable On

Supporting member:

concrete, steel

Supported member:

solid wood, engineered wood

Scope

  • The beam hangers serve as concealed connections of joists to the main beams or columns.
  • connections with slopes up to 45 ° can be performed.

Technical Data

Dimensions

Product Dimensions

References Joist Size [mm] Product Dimensions [mm] Header holes Joist holes
Height A B C t1 t2 Ø14 40-A1-A2-A3 [mm] Ø13
Min
BTC120-B16012012896362403
BTC160-B2001601289636440-804
BTC200-B2402001289636440-1205
BTC240-B2802401289636440-1606
BTC280-B3202801289636640-100-1007
BTC320-B3603201289636640-120-1208
BTC360-B4003601289636640-140-1409
BTC400-B4404001289636840-120-120-8010
BTC440-B4804401289636840-120-120-12011
BTC480-B5204801289636840-120-120-16012
BTC520-B5605201289636840-160-160-12013
BTC560-B6005601289636840-160-160-16014
BTC600-B6406001289636840-160-160-20015

Wood/rigid substrate fastening - Characteristic values in kN

References Number of Fasteners Product characteristic capacities - Timber C24 [kN]
Header Joist R1,k R2,k
Qty Type Qty Type Dowels length [mm] Dowels length [mm]
80 100 120 140 160 180 80 100 120 140 160 180
BTC120-B2Ø 123STD1211.512.714.215.817.217.27.78.59.510.511.511.5
BTC160-B4Ø 124STD1218.520.422.825.327.827.813.915.317.11920.920.9
BTC200-B4Ø 125STD1226.729.432.736.440.340.321.423.526.229.132.232.2
BTC240-B4Ø 126STD1235.839.443.848.653.854.329.832.836.540.544.845.3
BTC280-B6Ø 127STD1245.650.155.661.768.369.439.142.947.752.958.559.5
BTC320-B6Ø 128STD125661.468.175.583.485.54953.759.666.17374.8
BTC360-B6Ø 129STD1266.873.180.989.699102.259.46571.979.68890.8
BTC400-B8Ø 1210STD1277.985.194104.1114.8119.570.176.684.693.7103.3107.6
BTC440-B8Ø 1211STD128997.2107.3118.7130.9133.38188.497.5107.9119121.2
BTC480-B8Ø 1212STD12100.5109.5120.7133.414714792.1100.4110.6122.3134.8134.8
BTC520-B8Ø 1212STD12100.5109.5120.7133.4147147100.5109.5120.7133.4147147
BTC560-B8Ø 1212STD12100.5109.5120.7133.4147147100.5109.5120.7133.4147147
BTC600-B8Ø 1212STD12100.5109.5120.7133.4147147100.5109.5120.7133.4147147

For load combination:

 

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.

The anchors resistance and their number have to be checked according to the ETA and the type of header. The number of anchors given in the table is the maximum. If their resistance is decisive, it is the resistance to consider for the connection.

 

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

References Number of Fasteners Product characteristic capacities - Timber C24 [kN] Simplified Characteristic Capacities - C24
Header Joist R3,k R4,k [kN]
Qty Type Qty Type Dowels length [mm]
80 100 120 140 160 180
BTC120-B2Ø 123STD122.93.544.55.25.36.1
BTC160-B4Ø 124STD123.94.455.96.5712.2
BTC200-B4Ø 125STD124.95.56.37.27.88.812.2
BTC240-B4Ø 126STD125.76.67.58.49.110.412.2
BTC280-B6Ø 127STD126.57.68.79.610.411.918.3
BTC320-B6Ø 128STD127.38.69.710.811.813.418.3
BTC360-B6Ø 129STD128.19.510.81213.214.918.3
BTC400-B8Ø 1210STD128.910.511.913.214.716.424.4
BTC440-B8Ø 1211STD129.711.41314.416.117.824.4
BTC480-B8Ø 1212STD1210.612.414.115.617.619.324.4
BTC520-B8Ø 1212STD1211.413.315.116.819.120.824.4
BTC560-B8Ø 1212STD1212.314.316.21820.522.324.4
BTC600-B8Ø 1212STD1213.215.217.319.22223.824.4

The anchors resistance and their number have to be checked according to the ETA and the type of header. The number of anchors given in the table is the maximum. If their resistance is decisive, it is the resistance to consider for the connection.

Installation

Installation

Fixing

The following fasteners need to be used:

  • steel dowels Ø12 mm, length acc. width of the joist
  • bolts M12 acc. static requirements

Certification

Declaration of Performance (DoP)

European Technical Assessment (ETA)

CAD Library

DWG (2D) REVIT (2D) DWG (3D) REVIT (3D) SAT XML
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Contact

Simpson Strong-Tie U.K.

Simpson Strong-Tie

Cardinal Point, Winchester Road
Tamworth
Staffordshire
B78 3HG
United Kingdom