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.
- pdf-Datei Application for a national technical approval and/or construction technique permit (4 pages ) Version: 10 April 2024; Application form
- pdf-Datei Application for amendment / supplementation / renewal of a national technical approval and/or construction technique permit (4 pages ) Last updated: 10 April 2024; Application form
- pdf-Datei Guideline: How to provide drawings for national technical approvals and general construction technique permits (5 pages ) Version: July 2017
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.
- pdf-Datei Form for requesting a European Technical Assessment (ETA) (2 pages ) Last updated: 10 April 2024
| 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 Elascon SFix Schrauben als Verbindungsmittel | Elascon GmbH Im Erzenbach 17 79297 Winden | Z-9.1-886 |
Z:
21.03.2024 G: 16.01.2029 |
| 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:
31.05.2024 G: 31.05.2029 |
| 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 |
| HECO-VB (HVB) | HECO-Schrauben GmbH & Co. KG Dr.-Kurt-Steim-Straße 28 78713 Schramberg | ETA-24/0664 |
12.08.2024 |