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.

Technical Data Sheet

CE Marking

ETA

EPD

Fire resistance R 60

Service class 2

Electrogalvanized steel Z275

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

Product Dimensions

Reference	Connector Dimensions
	Timber size[mm]	Other		Product Dimensions[mm]					Header holes[mm]		Joist holes[mm]
	Height[mm]	Qty per Box	Weight[kg]	A[mm]	B[mm]	C[mm]	t1[mm]	t2[mm]	40-A1-A2-A3[mm]	Round	Round
	Min[mm]	Qty per Box	Weight[kg]	A[mm]	B[mm]	C[mm]	t1[mm]	t2[mm]	40-A1-A2-A3[mm]	Ø14	Ø13[mm]
BTC120-B	160	15.0	1	120	131	96	3	6	40	2	3
BTC160-B	200	15.0	1.3	160	131	96	3	6	40-80	4	4
BTC200-B	240	12.0	1.7	200	131	96	3	6	40-120	4	5
BTC240-B	280	10.0	2	240	131	96	3	6	40-160	4	6
BTC320-B	360	6.0	2.7	320	131	96	3	6	40-120-120	6	8
BTC560-B	600	4.0	4.7	560	131	96	3	6	40-160-160-160	8	14

Wood/rigid substrate fastening - Characteristic values in kN

Dimensions

Reference	Hanger capacity
	Product characteristic capacities - Timber beam to rigid support (concrete or steel)
	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]
	Qty	Type	Qty	Type	80	100	120	140	160	180	80	100	120	140	160	180
BTC120-B	2.0	Ø 12	3.0	STD12	11.5	12.7	14.2	15.8	17.2	17.2	7.7	8.5	9.5	10.5	11.5	11.5
BTC160-B	4.0	Ø 12	4.0	STD12	18.5	20.4	22.8	25.3	27.8	27.8	13.9	15.3	17.1	19	20.9	20.9
BTC200-B	4.0	Ø 12	5.0	STD12	26.7	29.4	32.7	36.4	40.3	40.3	21.4	23.5	26.2	29.1	32.2	32.2
BTC240-B	4.0	Ø 12	6.0	STD12	35.8	39.4	43.8	48.6	53.8	54.3	29.8	32.8	36.5	40.5	44.8	45.3
BTC320-B	6.0	Ø 12	8.0	STD12	56	61.4	68.1	75.5	83.4	85.5	49	53.7	59.6	66.1	73	74.8
BTC560-B	8.0	Ø 12	12.0	STD12	100.5	109.5	120.7	133.4	147	147	100.5	109.5	120.7	133.4	147	147

For load combination:

$\sum\left(\frac{F_{i,d}} {R_{i,d}}\right)^2\le1$

R_2,kcapacities are calculated as R_2,k = R_1,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

Dimensions

Reference	Hanger capacity
	Product characteristic capacities - Timber beam to rigid support (concrete or steel)
	Number of Fasteners				Product characteristic capacities - Timber C24[kN]								Simplified Characteristic Capacities - C24
	Header		Joist		R₄.ₖ	R₃,ₖ							R₄.ₖ[kN]
	Qty	Type	Qty	Type		Dowels length[mm]
	Qty	Type	Qty	Type		60	80	100	120	140	160	180
BTC120-B	2.0	Ø 12	3.0	STD12	6,7/kmod	2.6	2.9	3.5	4	4.5	5.2	5.3	6.1
BTC160-B	4.0	Ø 12	4.0	STD12	13,4/kmod	3.2	3.9	4.4	5	5.9	6.5	7	12.2
BTC200-B	4.0	Ø 12	5.0	STD12	13,4/kmod	4	4.9	5.5	6.3	7.2	7.8	8.8	12.2
BTC240-B	4.0	Ø 12	6.0	STD12	13,4/kmod	4.8	5.7	6.6	7.5	8.4	9.1	10.4	12.2
BTC320-B	6.0	Ø 12	8.0	STD12	20,1/kmod	6.4	7.3	8.6	9.7	10.8	11.8	13.4	18.3
BTC560-B	8.0	Ø 12	12.0	STD12	26,8/kmod	11.2	12.3	14.3	16.2	18	20.5	22.3	24.4