Composite columns
Composite columns consist of a combination of steel sections and concrete or reinforced concrete. The steel sections are completely or partially embedded in concrete. Composite columns have much higher resistance values than pure steel or pure reinforced concrete columns and hence can have thinner cross sections. The concrete cover usually also ensure the fire safety of the columns.
Regulatory framework
DIBt grants general construction technique permits (aBG) for the design and execution of composite columns where Eurocode 4 (DIN EN 1994) does not provide conclusive technical rules.
For non-regulated construction products used in these construction techniques, DIBt grants national technical approvals (abZ), also in combination with the general construction technique permit ('combined decision'). European Technical Assessments (ETAs) can also be issued for the related construction products.
Please also refer to the applicable design and execution rules, cf., in particular, MVV TB, Parts A 1 and A 2.
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
| Subject concerned | Applicant | Decision no. |
Validity
from / to |
|---|---|---|---|
| Verbundstütze Geilinger-Stütze | spannverbund GmbH Auf der Lind 13 65529 Waldems-Esch | Z-26.3-60 |
Z:
13.01.2020 G: 13.01.2025 |
| Fertigteilverbundstütze ORSO-V Stütze | Leviat AG Grenzstrasse 24 3250 LYSS SCHWEIZ | Z-26.3-62 |
Z:
21.06.2021 G: 25.11.2025 |