European guidance

Prospect for European Guidance for the Structural Design of Tensile Membrane Structures

Prospect for European Guidance for the Structural Design of Tensile Membrane Structures

Within CEN/TC 250/WG 5, CEN/TC 248/WG 4, the TensiNet Association and COST Action TU1303, an international team of researchers, engineers, architects, material producers and manufacturers has been working on this report, which provides background information in support of the implementation and development of a future Eurocode for the Structural Design of Tensile Membrane Structures. Tensioned Membrane Structures have unique properties compared to the more conventional built environment. Besides their low self-weight and high flexibility these structures are known to be 'optimally' constructed, as they are only loaded in tension. It results in shapes adapted to the flow of forces and a minimum of material needed to realise the span.
Despite a considerable amount of scientific knowledge exists, only few design codes are available. A common standardised approach as well as a comprehensive European design standard is needed in order to provide verification techniques, a common pool of design approaches and to achieve a harmonized safety level.
This background document consists of three major parts: (a) general explanations giving scientific and technical background for the design of membrane structures, (b) state-of-the-art overview on existing national and European rules and recommendations on the design of membrane structures, and (c) proposals for European harmonized design rules, which could be part of the future Eurocode for Tensile Membrane Structures.
The final aim is to develop a Eurocode for the Structural Design of Tensile Membrane Structures which will help to design and implement these lightweight structures. The Eurocode will not only assist and support the industry and engineering offices but will also encourage potential clients to choose these sustainable applications.

Download the report [(PDF Document) 28.11 MB]

Prospect for New Guidance in the Design of FRP

Prospect for New Guidance in the Design of FRP

Over the last twenty years, many innovative solutions have confirmed the usefulness of composite structures realized with FRPs (Fibre Reinforced Polymer or Plastic). The need of European standards for use of fibre-reinforced polymer composites in civil engineering was justified in 2007 in the JRC Report EUR 22864 EN. The new European technical rules will be developed using the existing organization of CEN/TC250.
The report presents scientific and technical background intended to stimulate debate and serves as a basis for further work to achieve a harmonized European view on the design and verification of such structures. This has been the main impulse to include the work item of the Fibre Reinforced Polymer Structures in the Mandate M/515 with high priority.
The present report has been worked out in the frame of CEN/TC250/WG4 activities. The report encompasses:

  • Part I, which introduces the policy framework and the CEN/TC250 initiative
  • Part II, which gives a prospect for CEN guidance for the design and verification of composite structures realized with FRPs
Download the report [(PDF Document)[ 6.44 MB]

New European Technical Rules for the Assessment and Retrofitting of Existing Structures

New European Technical Rules for the Assessment and Retrofitting of Existing Structures

The consideration of sustainability aspects in the construction sector jointly with considerable economic interests have been the main impulse to include the work item of assessment and retrofitting of existing structures in the Mandate M/515 with a high priority. The new European technical rules will be developed using the existing organization of CEN/TC250. The present report has been worked out in the frame of CEN/TC250/WG2 activities. The report contains three parts:

  • Part I introduces the policy framework and the CEN/TC250 initiative.
  • Part II is a collation of the different existing National regulations and standards in Europe with regard to existing structures.
  • Part III gives a prospect for CEN guidance for the assessment and retrofitting of existing structures.
Having in mind the stepwise procedure for preparation of CEN Technical Documents, the contents of Part III is broader, covers more aspects, and includes more information than the normative technical recommendations. In particular, key issues are identified that require resolution and a summary of different national perspectives is provided rather than seeking to resolve all difficult technical issues during the first work step. The report presents scientific and technical background intended to stimulate debate and serves as a basis for further work to achieve a harmonized European view on the assessment and retrofitting of existing structures.

Download the report (PDF Document)[ 3.83 MB]

Guidance for European Structural Design of Glass Components

Guidance for European Structural Design of Glass Components

This JRC Scientific and Policy Report is a pre-normative document that represents the basis of a new Eurocode on the design of structural glass. It was developed by CEN/TC 250 WG 3 and it presents the available background of both the design of glass components related to up-to-date existing national codes as well as the recent scientific knowledge.
The report includes a material part, describing the behaviour of glass and the used interlayer materials. Subsequently, the typical properties of glass products and their placement in existing product standards are mentioned. The principles and basic rules for the design of glass components as well as the safety approach are clarified with regard to the particular characteristic of glass - the absent of plasticity. Furthermore there are different types of construction made of glass. They can be separated in secondary and primary structural elements. For secondary structural elements the existing design rules are presented, for primary structural elements the report gives an overview of the actual state of research work.
In form of so called “Code reviews” the existing design and product standards are mentioned and they are also explained to some extent, the so-called “Eurocode outlooks” give a perspective on what and how the content of the future Eurocode on Structural Glass should be.

Download the report (PDF Document) [10.87 MB]