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Druckstrebentragfähigkeit von vorgespannten UHPFRC-Hohlkästen unter Torsion und kombinierter Beanspruchung

Author(s):

Medium: journal article
Language(s): German
Published in: Beton- und Stahlbetonbau, , n. 3, v. 109
Page(s): 182-192
DOI: 10.1002/best.201300061
Abstract:

Bearing capacity of the compression strut of prestressed UHPFRC box girders under torsion and combined loading

Due to the high compressive strength of ultra-high performance fiber reinforced concrete (UHPFRC) thin-walled and innovative components can be produced. In order to gain new fields of application for concrete elements it would be useful to prefabricate weight-optimized and transportable segments, which could be mounted to complex components such as segmental bridges, precast towers or precast poles directly on site. As such components are not only stressed by bending and shear, but also torsion, the iBMB, Department of Concrete Structures of the TU Braunschweig, has conducted experimental and theoretical research works on the bearing capacity of the concrete compression strut of monolithic and segmental externally prestressed UHPFRC box girders under torsion and combined loading of bending, shear and torsion. Based on the experimental results and the approaches of normal- and high-strength concrete the existing design models have been extended to describe the bearing capacity of UHPFRC compression struts.

Keywords:
bridges torsion EC ultra high-performance concrete (UHPC) dimensioninig combined loading pre-stressed concrete precast elements ultra-high performance fiber reinforced concrete (UHPFRC) concrete compression strut bearing capacity monolithic box girder segmental box girder fibre concrete UHPFRC
Available from: Refer to publisher
Structurae cannot make the full text of this publication available at this time. The full text can be accessed through the publisher via the DOI: 10.1002/best.201300061.
  • About this
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  • Reference-ID
    10069815
  • Published on:
    11/03/2014
  • Last updated on:
    13/08/2014
 
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