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FAILURE MECHANICS OF FIBRE-REINFORCED CONCRETE AND PRE-DAMAGED STRUCTURES.

Objective

The two main objectives of the project are

(i) the development of constitutive models, general design methodologies and robust software for failure analysis of FRC structures, and

(ii) benchmarked software which can be used to assess the residual load-carrying capacity and the effectiveness of repair measures for existing pre-damaged structures.
This research project covers a comprehensive programme towards the development of rational design rules and reliable predictive methods for progressive failure in fibre reinforced concrete;
the development of computational strategies for (conventionally reinforced) concrete structures which are predamaged.

The second area assesses the residual load carrying capacity, the chances of repair and the effectiveness of various alternatives for repair. The programme covers an integrated spectrum of activities, ranging from experimental investigations to theoretical, numerical and verification studies.

Based on an extensive testing programme, constitutive relations and improved design rules are being established for plain, predamaged and fibre reinforced concrete (FRC). For these models well documented finite element software is being written and made available to engineering practices. This software will be benchmarked with verification analyses of medium scale test specimens which are being tested to failure within the proposed project as well as studies on large scale structures for which in situ measurements are available at the partners. The verification studies encompass both FRC structures and existing predamaged structures.
The proposed research project covers a comprehensive programme towards

- the development of rational design rules and reliable predictive methods for progressive failure in fibre-reinforced concrete; and

- the development of computational strategies for (conventionally reinforced) concrete structures which are pre-damaged.

The second objective serves the purpose of assessing the residual load-carrying capacity, the chances of repair and the effectiveness of various alternatives for repair. The envisaged programme covers an integrated spectrum of activities, ranging from experimental investigations to theoretical, numerical and verification studies.

Based on an extensive testing programme, constitutive relations and improved design rules will be established for

(i) plain
(ii) pre-damaged and
(iii) fibre-reinforced concrete (FRC).

For these models well-documented finite element software will be written and made available to engineering practices. This software will be brenchmarked with verification analyses of medium-scale test specimens which will be tested to failure within the proposed project as well as studies on large-scale structures for which in-situ measurements are available at the partners. The verification studies will encompass both FRC structures and existing pre-damaged structures.

Coordinator

Hochtief AG
Address
Bockenheimer Landstraße 24
60325 Frankfurt Am Main
Germany

Participants (5)

Centre for Civil Engineering research
Netherlands
Ecole Normale Supérieure de Cachan
France
Address

94235 Cachan
TNO INSTITUTE FOR BUILDING MATERIALS AND STRUCTURES
Netherlands
Universität Fridericana Karlsruhe (Technische Hochschule)
Germany
Address
Kaiserstraße 12
76128 Karlsruhe
Électricité de France (EDF)
France