Construction products detail

Wood-concrete composite systems

Wood-concrete composite systems consist of a timber element and a concrete slab that are joined together in a shear-resistant manner. The shear-resistant bond can be achieved, for example, using screws, dowels, birdsmouth joints, punched metal plate fasteners, flat steel locks or glued-in sheets. Formwork with or without foil can also be arranged.

Regulatory framework

There are no conclusive technical rules for the design and execution of wood-concrete composite applications, cf. MVV TB, Annex A 1.2.5/1, no. 4. DIBt grants general construction technique permits (aBG) for these construction techniques. The aBG can also be granted in combination with a national technical approval (abZ), when construction products are being used for which no Technical Building Rules (cf. MVV TB Chapter C.2) and no generally recognised technical rules exist.

European Technical Assessments (ETAs) can also be issued for wood-concrete composite products.

National procedure

A national technical approval (abZ) and/or oder general construction technique permit (aBG) is granted upon application (see Model Building Code (MBO), Sections 16a(2) and18(2) and (4)). This also applies to amendments and supplements to, or renewals of existing approvals and/or construction technique permits.

No formal requirements apply. The following information is needed: name and address of the applicant, description of the product and/or construction technique and its field of use or application, type of decision required (new decision, amendment or supplement to, or renewal of, an existing decision).

Please feel free to use the template below.

European Technical Assessment (ETA)

To start the ETA procedure, please submit the form below. We will then check if the prerequisites for issuing an ETA are met, i.e., in particular, if the product is not fully covered by an existing harmonised standard. If the prerequisites are met, we will check whether a European Assessment Document (EAD) covering the requested assessment scope already exists or still needs to be developed. If an EAD needs to be developed or amended, a complete technical file needs to be established before the procedure can begin.

aBG

Z
new decision
E
supplement
Ä
amendment
V
renewal
G
valid until
Subject concerned Applicant Decision no. Validity
from / to
Holz-Beton-Verbundkonstruktionen unter Verwendung von SFS VB Schrauben SFS Group Schweiz AG Rosenbergsaustrasse 10 CH - 9435 Heerbrugg SCHWEIZ Z-9.1-342 Z: 16.06.2022
G: 21.10.2025
Dennert Holz-Beton Verbundelemente VEIT DENNERT KG Veit-Dennert-Straße 7 96132 Schlüsselfeld Z-9.1-474 Z: 01.09.2021
G: 01.09.2026
HBV-Schubverbinder aus Streckmetall und vorgefertigte Bauteile mit eingeklebten HBV-Schubverbindern für ein Holz-Beton-Verbundsystem TiComTec GmbH Goethestraße 60 63808 Haibach Z-9.1-557 Z: 19.06.2020
G: 15.06.2025
Holz-Beton-Verbundkonstruktionen unter Verwendung von Schmid Schrauben RAPID® T-Con als Verbindungsmittel Schmid Schrauben Hainfeld GmbH Landstal 10 3170 HAINFELD ÖSTERREICH Z-9.1-845 Z: 11.10.2021
G: 11.10.2026
BiFRi Verbund-Anker als Verbindungsmittel für das FRIEDRICH Holz-Beton-Verbundsystem FRIEDRICH GmbH Verbundsysteme Hofer Straße 21 95233 Helmbrechts Z-9.1-851 Z: 12.03.2020
G: 12.03.2025
Hobet Schrauben als Verbindungsmittel für Holz-Beton-Verbundsysteme SIHGA® GmbH Gewerbepark Kleinreith 4 4694 OHLSDORF ÖSTERREICH Z-9.1-861 Z: 31.05.2021
G: 24.05.2026
Holz-Beton-Verbundkonstruktionen unter Verwendung von Ancon Composite Connector als Verbindungsmittel Leviat GesmbH Leonard Bernstein Strasse 10 1220 WIEN ÖSTERREICH Z-9.1-903 Z: 10.12.2021
G: 10.12.2026
Tragende Geschoßdeckenkonstruktionen unter Verwendung der DUOBLOCK Holz-Beton-Verbundbauweise Brunthaler Holzbau GmbH & Co. KG Pfarrkirchener Straße 31 84385 Egglham Z-9.1-904 Z: 02.02.2022
G: 02.02.2027
Fertigteildecken in Holz-Beton-Verbundbauweise über formschlüssigen Verbund ZECH Systeme SE Hansator 20 28217 Bremen Z-9.1-911 Z: 16.10.2023
G: 16.10.2028
Tragend verklebte Brettsperrholzelemente "TS3-PTS-Elemente" für Decken- und Dachkonstruktionen Timber Structures 3.0 AG Niesenstrasse 1 CH - 3600 THUN SCHWEIZ Z-9.1-917 Z: 01.03.2024
G: 01.03.2029
Subject concerned Applicant Decision no. Issued on
SFS VB screws SFS Group Schweiz AG Rosenbergsaustrasse 10 CH - 9435 Heerbrugg SCHWEIZ ETA-13/0699 01.06.2022