Parking slabs made of carbon reinforced concrete

Abstract

Parking garage buildings are usually comprised of steel reinforced concrete (RC) slabs. Unfortunately, there are often cases of damage caused by the high exposure to corrosive chemicals. To prevent corrosion of the reinforcement, especially the ceilings must be coated with expensive protection systems. Due to the not-corrosive nature of carbon fibers, carbon RC is a perfect solution for those structures. But before using carbon RC for parking slabs, the problem of the end anchorage of the reinforcement by short-end anchorage lengths had to be solved. Therefore, a new anchorage method for carbon RC is described in detail in this publication. A large-scale test had been conducted to show the potential of carbon RC for parking slabs and to prove the ability of the developed new-end anchorage method. Also, an analytical recalculation of the large-scale test is presented.

Stabanker für dünne Carbonbetonwände

“…Hinsichtlich des Baustoffs Textilbeton hat die Materialforschung in den vergangenen zwei Jahrzehnten umfassende Fortschritte erzielt, was dazu geführt hat, dass insbesondere die Carbonbetonbauweise ein großes Potenzial für weitreichende Anwendungsfelder hat . Aufgrund seiner Materialeigenschaften eignet sich Carbonbeton besonders für flächige Bauteile wie bspw.…”

“…Hinsichtlich des Baustoffs Textilbeton hat die Materialforschung in den vergangenen zwei Jahrzehnten umfassende Fortschritte erzielt, was dazu geführt hat, dass insbesondere die Carbonbetonbauweise ein großes Potenzial für weitreichende Anwendungsfelder hat [1][2][3][4][5] Anchor sticks for thin walls made out of carbon reinforced concrete Carbon reinforced concrete is no stranger anymore. Noncorrosive properties made it popular for the use in slender and filigree structures.…”

Design and Testing of Various Ceiling Elements Made of Carbon Reinforced Concrete

“…At the Otto Mohr Laboratory (OML) of our institute, a large-scale ceiling element for parking slabs was made of CRC. The geometry of the slab was 2.5 m × 1.0 m × 0.10 m with a span of 2.38 m [6]. The challenge of this large-scale element was to find the best design concept for the end anchorage of a carbon fiber grid.…”

“…With this conception the grid can be end anchored even if really small end anchorage lengths exist. With an experimental test [6] which was performed as 4-point bending test (Figure 2), it should be proved the suggestion that the carbon grid can be sufficient end anchored with this conception. The failure of the specimen was a tensile failure caused by the bending load generated by a total experimental load of 160 kN.…”

“…It was shown that this kind of conception is a high potential method for parking slabs. For more information about this structure see [6].…”