Innovative, unbounded prestressing

Precast floor slab made of carbon-reinforced concrete

As part of the C ³ research project on carbon-reinforced concrete, an unbounded prestressing system has been developed, in particular, taking the requirements of building construction into account (sub-project V4.2 prestressed carbon-reinforced concrete). The flexible system – post tensible, reusable, modular – is composed of a friction clamp anchoring and a CFRP laminate as tension member. With the collaboration of the C³ project V1.5 Recycling and reusability of carbon-reinforced concrete, two floor elements were implemented, which take the historical Möller Girder up by their shape followin...

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Issue 2022-06

Lightweight, prestressed carbon-reinforced concrete floor slabs – New perspectives for the precast industry

Since the 1930s, numerous prestressed thin-walled building elements, prestressed both with and without bond, have been used in construction worldwide. Examples range from buildings with simple slab...

Issue 2016-11 Beuth Verlag

Examples for the design of reinforced and prestressed concrete structures to EC 2

Beuth Verlag has published the second edition of the examples for the design of reinforced and prestressed concrete structures to EC 2. This edition focusses only on the verification and design...

Issue 2017-05 Dennert

Prestressed precast floor slabs: large spans and load ­capacities – including heating and cooling function

In particular, if architecture is using free design for interior space and very large distances have to be spanned, prestressed precast floor slabs of Dennert provide a wide variety of options – even...

Issue 2019-02 New findings on the fatigue behavior of precast elements

Behavior of prestressed concrete girders

For prestressed precast concrete elements used in structures with predominantly cyclic loading, for example craneway girders in industrial structures or precast girders in bridge constructions, design...

Issue 2020-02 Highly stressed carbon-fiber reinforced concrete members

Research on long-term behavior

A major part of the damages occurring at steel-reinforced concrete structures is caused by the corrosion of the steel reinforcement. Cost-intensive and time-consuming repair works or new replacement...