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Part B - Verifications and approval requirements 
2 Support structures 
2.1 Preliminary remarks 
With respect to the materials used (concrete, concrete reinforcing steel, prestressing steel, 
steel etc.), the general material parameters, in particular the strength and toughness values, 
shall be detailed. For the supporting components (primary and secondary structures), con 
struction materials licensed in accordance with the List of Regulated Construction Products 
shall be used, in as far as no additional regulations have been included in the BSH Standard 
(e.g. choice of steel grade according to Appendix 5). If non-regulated products are used in 
exceptional cases (e.g. grout), an individual Technical Approval from the respective approval 
authority is required (please refer to Appendix 2). In this case, the BSH may appoint a suitable 
certified inspector to assess the component under consideration. The applicant shall commu 
nicate the usage of non-regulated construction products at an early stage. 
In as far as new products or procedures are used alongside tried and tested corrosion protec 
tion systems in order to certify durability and the absence of pollutants - and in as far as these 
suitably represent the proper purpose -, their usage in offshore tests on auxiliary installations, 
such as measurement masts, shall be considered both appropriate and permissible with the 
aim of promoting the further development of such corrosion protection systems. 
In the above case, the following procedure applies: 
1. Presentation of a concept for carrying out the test by way of deviation from the codes of 
practice listed in chapter B2.3.1 
2. Certificate confirming that the test has been accordingly conducted by a suitable institu 
tion (e.g. BAW), including an explanation detailing the approach used, the scope and the 
results of the test and, where appropriate, the requirements as a result of the test together 
with a 
3. Opinion compiled by the appointed inspector. 
The requirements pertaining to production monitoring mentioned in chapter B2.4.2.1 shall 
also apply to the foundation elements and the supporting components of the operational 
structure. 
Different inspection intervals shall apply to the offshore support structures due to the position 
of the parts to be inspected and their different qualities (e.g. design safety factors) - please 
refer to Table 2-1. Based on the test and inspection results, a request for deviation to modify 
the test intervals may be submitted after an appropriate period of time and frequent inspec 
tions. Exempt from the above are intervals that are subject to legal provisions or regulations. 
The following areas at least shall be included in each periodic inspection of an offshore sup 
port structure: 
• All load-bearing structural elements which are crucial for the stability against collapse 
• Other supporting elements which are crucial for the stability against collapse (e. g. structural 
bolts) 
• The seabed composition (e.g. scouring) 
• Marine growth and 
• Corrosion protection (coatings and anodes). 
Which parts of the support structure need to be inspected depends on the type of structure 
concerned. A differentiation needs to be made here, for example, between concrete and steel 
structures. In the test and inspection plan only those components need to be taken into ac 
count that are of relevance to the stability of the support structure.