You are here

Timber concrete composite systems

Timber 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 timber cocrete composite systems, 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 timber concrete composite products.

National procedure

To prepare an abZ/aBG for your construction product, we need an application from you. We recommend that you contact us prior to doing so. Feel free to send us your enquiry informally via email to dibt(at)dibt(.)de or to the competent technical contact listed in the top right.

For a first assessment, please send us the following information:

  • Description of the construction product and its intended field of use
    • e.g. material, configuration, number of sizes, variants, dimensions
    • e.g. use in walls, ceilings, interior construction, building services
  • Description of the construction technique and its field of application
    • e.g. design of walls, ceilings, elements, etc., and interaction of components
    • e.g. application in foundation engineering, reinforced concrete construction, building insulation; as load-bearing or non-load-bearing component; under static and quasi-static loading; fire exposure; other environmental exposures
  • Information regarding impact on regulatory concerns
    • in particular structural integrity, fire protection, health and environment protection, sound insulation as well as thermal performance
  • Explanation of need for an abZ/aBG
  • Contact details
    • preferably email address and/or telephone number, as well as name, organisation/company, and postal address

We will then contact you to clarify the next steps.

If you already hold a DIBt approval and/or construction technique permit and wish to apply for an amendment, supplement, or renewal, please use the form provided 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 Heco-VB Schrauben und SFS VB Schrauben HECO-Schrauben GmbH & Co. KG Dr.-Kurt-Steim-Straße 28 78713 Schramberg Z-9.1-342 Z: 09.10.2025
G: 09.10.2030
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 Karl-Seitz-Straße 19 63768 Hösbach Z-9.1-557 Z: 21.03.2025
G: 21.03.2030
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: 11.04.2025
G: 13.03.2030
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
DUOBLOCK-2 Holz-Beton-Verbundelemente Brunthaler Holzbau GmbH & Co. KG Pfarrkirchener Straße 31 84385 Egglham Z-9.1-925 Z: 17.12.2024
G: 17.12.2029
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