Location

Select one of our Websites

Nails and Screws

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.

Technical Data Sheet

CE Marking

ETA

Service class 2

Electrogalvanized steel 20 µm

Fire resistance R 60

Product Details

Images

TU TUB install b.jpg

TU TUB TUS TUBS install a.jpg

Joist on joist

TU TUB TUS TUBS install b.jpg

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	A	B	C	t	Min	Max.	Ø13	Ø5	Ø12,5
TUBS16	60	160	160	190	240	88	134	108	60	3.5	30	85	2	16	3
TUBS20	60	160	200	225	280	88	174	108	60	3.5	30	85	2	20	4
TUBS24	60	160	240	260	300	88	214	108	60	3.5	30	85	2	24	5
TUBS28	60	160	280	295	340	88	254	108	60	3.5	30	85	2	28	6

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		R_1,k - Slope β=0°						R_1,k - Slope β=15°						R_1,k - Slope β=30°						R_1,k - Slope β=45°
	Qty	Type	Qty	Type	Dowels length [mm]						Dowels length [mm]						Dowels length [mm]						Dowels length [mm]
	Qty	Type	Qty	Type	60	80	100	120	140	160	60	80	100	120	140	160	60	80	100	120	140	160	60	80	100	120	140	160
TUBS16	16	CNA4,0x50	3	STD12	15.4	15.9	16.7	17.8	19	20.2	14.9	15.3	16	17	18	19.1	14.5	14.8	15.4	16.2	17.1	18.1	14.1	14.4	14.9	15.6	16.4	17.3
TUBS20	20	CNA4,0x50	4	STD12	23.5	24.3	25.6	27.2	28.9	30.7	22.8	23.4	24.5	25.9	27.4	29.1	22.2	22.6	23.5	24.7	26.1	27.6	21.6	22.2	22.9	24	25.2	26.5
TUBS24	24	CNA4,0x50	5	STD12	32.6	33.5	35.3	37.4	39.8	42.1	31.6	32.3	33.7	35.6	37.7	39.9	30.8	31.3	32.5	34.1	36	37.9	29.9	30.8	31.8	33.3	34.9	36.7
TUBS28	28	CNA4,0x50	6	STD12	42.1	43.3	45.5	48.2	51.1	53.8	40.9	41.7	43.6	45.9	48.5	51.2	39.7	40.6	42.1	44.2	46.5	48.9	38.9	40	41.4	43.2	45.3	47.5

R_2,k capacities can be 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.

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		R_1,k - Slope β=0°						R_1,k - Slope β=15°						R_1,k - Slope β=30°						R_1,k - Slope β=45°
	Qty	Type	Qty	Type	Dowels length [mm]						Dowels length [mm]						Dowels length [mm]						Dowels length [mm]
	Qty	Type	Qty	Type	60	80	100	120	140	160	60	80	100	120	140	160	60	80	100	120	140	160	60	80	100	120	140	160
TUBS16	16	CNA4,0x50	3	STD12	15.4	15.9	16.8	17.9	19.1	20.3	14.9	15.3	16.1	17	18.1	19.2	14.5	14.8	15.4	16.2	17.2	18.2	14.1	14.4	14.9	15.6	16.5	17.4
TUBS20	20	CNA4,0x50	4	STD12	23.6	24.4	25.7	27.3	29.1	30.9	22.9	23.4	24.6	26	27.6	29.3	22.3	22.7	23.6	24.8	26.2	27.7	21.6	22.2	23	24.1	25.3	26.7
TUBS24	24	CNA4,0x50	5	STD12	32.7	33.7	35.5	37.6	40	42.3	31.7	32.4	33.9	35.8	37.9	40.1	30.8	31.4	32.6	34.3	36.2	38.1	30	30.9	31.9	33.4	35.1	36.9
TUBS28	28	CNA4,0x50	6	STD12	42.3	43.5	45.7	48.4	51.2	53.8	41	41.9	43.8	46.2	48.8	51.4	39.8	40.7	42.3	44.4	46.7	49.1	39	40.2	41.6	43.4	45.5	47.7

R_2,kcapacities can be calculated as R_2,k= R_1,kx (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		R_1,k - Slope β=0°						R_1,k - Slope β=15°						R_1,k - Slope β=30°						R_1,k - Slope β=45°
	Qty	Type	Qty	Type	Dowels length [mm]						Dowels length [mm]						Dowels length [mm]						Dowels length [mm]
	Qty	Type	Qty	Type	60	80	100	120	140	160	60	80	100	120	140	160	60	80	100	120	140	160	60	80	100	120	140	160
TUBS16	16	CNA4,0x50	3	STD12	15.4	16	16.9	18	19.2	20.5	15.4	16	16.9	18	19.2	20.5	14.5	14.8	15.5	16.3	17.3	18.3	14.1	14.4	15	15.7	16.6	17.5
TUBS20	20	CNA4,0x50	4	STD12	23.8	24.5	25.9	27.6	29.3	31.1	23.8	24.5	25.9	27.6	29.3	31.1	22.4	22.8	23.7	25	26.4	27.9	21.7	22.3	23.1	24.2	25.5	26.9
TUBS24	24	CNA4,0x50	5	STD12	32.9	33.9	35.7	37.9	40.2	42.5	32.9	33.9	35.7	37.9	40.2	42.5	31	31.6	32.9	34.6	36.5	38.5	30.2	31.1	32.2	33.7	35.4	37.2
TUBS28	28	CNA4,0x50	6	STD12	42.6	43.8	46.1	48.8	51.5	53.8	42.6	43.8	46.1	48.8	51.5	53.8	40.1	41	42.6	44.7	47.1	49.5	39.3	40.5	41.9	43.8	45.9	48.1

R_2,kcapacities can be 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.

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		R_1,k - Slope β=0°						R_1,k - Slope β=15°						R_1,k - Slope β=30°						R_1,k - Slope β=45°
	Qty	Type	Qty	Type	Dowels length [mm]						Dowels length [mm]						Dowels length [mm]						Dowels length [mm]
	Qty	Type	Qty	Type	60	80	100	120	140	160	60	80	100	120	140	160	60	80	100	120	140	160	60	80	100	120	140	160
TUBS16	12	CNA4,0x50	3	STD12	13.9	14.4	15.2	16.2	17.3	18.4	13.5	13.9	14.6	15.5	16.5	17.5	13.1	13.4	14	14.7	15.6	16.5	12.7	13	13.5	14.2	14.9	15.8
TUBS20	13	CNA4,0x50	4	STD12	19.7	20.3	21.4	22.3	22.3	22.3	19.1	19.6	20.6	21.7	22.3	22.3	18.6	18.9	19.7	20.7	21.8	22.3	18.1	18.5	19.1	20	21	22.1
TUBS24	16	CNA4,0x50	5	STD12	27.7	28.5	30	30.4	30.4	30.4	26.8	27.5	28.8	30.3	30.4	30.4	26.1	26.6	27.7	29	30.4	30.4	25.3	26	26.9	28.1	29.5	30.4
TUBS28	17	CNA4,0x50	6	STD12	32	32	32	32	32	32	32	32	32	32	32	32	31.3	31.8	32	32	32	32	30.5	31.2	32	32	32	32

R_2,kcapacities can be calculated as R_2,k= R_1,kx (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		R_1,k - Slope β=0°						R_1,k - Slope β=15°						R_1,k - Slope β=30°						R_1,k - Slope β=45°
	Qty	Type	Qty	Type	Dowels length [mm]						Dowels length [mm]						Dowels length [mm]						Dowels length [mm]
	Qty	Type	Qty	Type	60	80	100	120	140	160	60	80	100	120	140	160	60	80	100	120	140	160	60	80	100	120	140	160
TUBS16	12	CNA4,0x50	3	STD12	13.9	14.4	15.3	16.3	17.4	18.5	13.5	13.9	14.6	15.6	16.6	17.6	13.1	13.4	14	14.8	15.7	16.6	12.7	13	13.5	14.2	15	15.8
TUBS20	13	CNA4,0x50	4	STD12	19.8	20.4	21.5	22.3	22.3	22.3	19.2	19.7	20.6	21.7	22.3	22.3	18.6	19	19.8	20.8	21.9	22.3	18.1	18.5	19.2	20.1	21.1	22.1
TUBS24	16	CNA4,0x50	5	STD12	27.8	28.6	30	30.4	30.4	30.4	26.9	27.6	28.9	30.3	30.4	30.4	26.2	26.7	27.8	29.1	30.4	30.4	25.4	26.1	27	28.3	29.6	30.4
TUBS28	17	CNA4,0x50	6	STD12	32	32	32	32	32	32	32	32	32	32	32	32	31.4	31.8	32	32	32	32	30.6	31.3	32	32	32	32

R_2,k capacities can be 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.

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		R_1,k - Slope β=0°						R_1,k - Slope β=15°						R_1,k - Slope β=30°						R_1,k - Slope β=45°
	Qty	Type	Qty	Type	Dowels length [mm]						Dowels length [mm]						Dowels length [mm]						Dowels length [mm]
	Qty	Type	Qty	Type	60	80	100	120	140	160	60	80	100	120	140	160	60	80	100	120	140	160	60	80	100	120	140	160
TUBS16	12	CNA4,0x50	3	STD12	14	14.5	15.4	16.4	17.5	18.6	13.6	14	14.7	15.7	16.7	17.7	13.1	13.4	14.1	14.9	15.8	16.7	12.7	13	13.6	14.3	15.1	16
TUBS20	13	CNA4,0x50	4	STD12	19.9	20.5	21.5	22.3	22.3	22.3	19.3	19.8	20.7	21.8	22.3	22.3	18.7	19.1	19.9	20.9	21.9	22.3	18.2	18.6	19.3	20.2	21.2	22.1
TUBS24	16	CNA4,0x50	5	STD12	28	28.8	30.1	30.4	30.4	30.4	27.1	27.8	29	30.3	30.4	30.4	26.4	26.9	27.9	29.2	30.4	30.4	25.6	26.3	27.2	28.4	29.7	30.4
TUBS28	17	CNA4,0x50	6	STD12	32	32	32	32	32	32	32	32	32	32	32	32	31.4	31.8	32	32	32	32	30.7	31.4	32	32	32	32

R_2,k capacities can be 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.

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

Make a vertical notch in the joist end (width 6mm for TU12 and 9mm for TU16 to TU28),
Mark the position of the dowels on the joist before drilling holes - diameter of the hole according to the diameter of the dowel
Insert the top dowel in the joist
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
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.
Install reamining dowels.the concealed beam hanger to the header with nails or screws

TU TUB TUS TUBS install a.jpg

Joist on joist

TU TUB TUS TUBS install b.jpg

Joist on post

TU TUS install UK.jpg

To view Left model

Certification

Declaration of Performance (DoP)

uk-dop-e07-0245-issue-4.pdf (97 KB)

2016-08-10

uk-dop-e07-0245-issue-3.pdf (67.19 KB)

2016-01-07

uk-dop-e07-0245-issue-2.pdf (34.18 KB)

2015-08-04

uk-dop-e07-0245-issue-1.pdf (32.07 KB)

European Technical Assessment (ETA)

eta-07-0245-2018-08-15.pdf (2.68 MB)

2016-08-10

eta070245-sst-je-ch-r5-2016-rev-a.pdf (3.36 MB)

ZIP Packages

Buy from Distributor

No items available.

Legal Info

About Simpson Strong-Tie®

Simpson Strong-Tie provides products and technology that help people design and build safer, stronger structures.

As a pioneer in the building industry and a world leader in structural solutions, we have an unmatched passion for problem solving through skilful engineering and thoughtful innovation. Our dedication to pursuing ever-better construction products and technology and to surrounding our customers with exceptional service and support has been core to our mission since 1956.
- www.strongtie.com

Contact

Simpson Strong-Tie Poland

Simpson Strong-Tie Etanco P.S.A.

ul. Karczunkowska 42
02-871 Warszawa
Poland

Phone

+48 22 865 22 00

Email

poland@strongtie.com

Website

www.strongtie.pl