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 11/2016 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 05/2017 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 02/2019 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 02/2015 Market potential in bridge infrastructure

Use of carbon-reinforced shotcrete to increase the shear resistance of prestressed-concrete girders

The German highway network includes over 39,000 bridges with a total length of almost 2,100 km. Most of these bridges were built from prestressed concrete in the period from 1965 to 1985 (Fig. 1)....

Issue 02/2018 Verification of infills made of lightweight concrete masonry

Current research findings and new design model

According to the standards currently in effect, it is not possible to determine the structural capacity of non-reinforced infilling masonry walls made of lightweight concrete masonry taking into...