Uncertainty models for safety assessment of textile reinforced concrete structures

2007 ◽  
pp. 67-74
Author(s):  
Bernd Möller ◽  
Wolfgang Graf ◽  
Andreas Hoffmann ◽  
Jan-Uwe Sickert
Keyword(s):  
Reinforced Concrete ◽  
Safety Assessment ◽  
Concrete Structures ◽  
Reinforced Concrete Structures ◽  
Textile Reinforced Concrete ◽  
Uncertainty Models

Analysis of textile-reinforced concrete structures under consideration of non-traditional uncertainty models

2007 ◽  
Vol 29 (12) ◽  
pp. 3420-3431 ◽  
Author(s):  
Wolfgang Graf ◽  
Andreas Hoffmann ◽  
Bernd Möller ◽  
Jan-Uwe Sickert ◽  
Frank Steinigen
Keyword(s):  
Reinforced Concrete ◽  
Concrete Structures ◽  
Reinforced Concrete Structures ◽  
Textile Reinforced Concrete ◽  
Uncertainty Models

scholarly journals A new testing method for textile reinforced concrete under impact load

2018 ◽  
Vol 199 ◽  
pp. 11010 ◽  
Author(s):  
Marcus Hering ◽  
Manfred Curbach
Keyword(s):  
Reinforced Concrete ◽  
Large Scale ◽  
Impact Load ◽  
Impact Resistance ◽  
Concrete Structures ◽  
Reinforced Concrete Structures ◽  
Impact Loads ◽  
Textile Reinforced Concrete ◽  
Reinforcement Structure ◽  
Testing Method

Textile reinforced concrete, especially textile reinforced concrete with carbon fibres, was already been used for strengthening steel reinforced concrete structures under static loads up to now. The question is if the composite can also be used for strengthening structures against impact loads. The main goal of a current research project at the Technische Universität Dresden is the development and characterization of a reinforcement fabric with optimized impact resistance. But there is a challenge. There is the need to find the best combination of fibre material (glass, carbon, steel, basalt, …) and reinforcement structure (short fibres, 2D-fabrics, 3D-fabrics, …), but testing the large number of possible combinations is not possible with the established methods. In general, large-scale tests are necessary which are very expensive and time consuming. Therefore, a new testing method has been developed to deal with this large number of possible combinations of material and structural experiments. The following paper describes this new testing method to find the best fabric reinforcement for strengthening reinforced concrete structures against impact loads. The testing devise, which is located in the drop tower facility at the Otto Mohr Laboratory, and the test set-up are illustrated and described. The measurement equipment and the methods to evaluate the experimental results are explained in detail.

scholarly journals Self-Healing of Cracked Textile Reinforced Concrete Layers

Proceedings ◽  
2019 ◽  
Vol 34 (1) ◽  
pp. 20
Author(s):  
Lenting ◽  
Orlowsky
Keyword(s):  
Reinforced Concrete ◽  
Concrete Structures ◽  
Reinforced Concrete Structures ◽  
Self Healing ◽  
Textile Reinforced Concrete ◽  
Steel Reinforced Concrete ◽  
Material Development ◽  
Inorganic Coating ◽  
Protection Layer ◽  
Crack Widths

Sustainable maintenance of existing steel-reinforced concrete structures becomes more important. Using non-reinforced sprayed mortar to maintain these structures often leads to cracks in this repair layer due to the alteration of crack widths in the ordinary structure. The water impermeability as well as the durability of the sprayed mortar will be reduced due to the described cracks. This presentation shows a solution for the described problem. The use of carbon yarns with a special inorganic coating as reinforcement in sprayed mortars leads to a self-healing of the arising cracks. Due to the inorganic coating applied on carbon yarns the excellent bond between mortar and yarn results in a fine distributed crack image with crack width below 0.1 mm. It is shown that these cracks heal themselves. Consequently we can provide a mainly mineral protection layer for existing steel reinforced concrete structures which is impermeably to water based solutions. The presentation focuses on the material development and characterization.

Optimierte Formen aus Textilbeton am Beispiel der Grillmöbel „Donauwelle“/Optimized shapes for textile reinforced concrete structures – design of the barbecue furniture “Donauwelle”

Bauingenieur ◽  
2016 ◽  
Vol 91 (10) ◽  
pp. 425-433
Author(s):  
Martin Ritt ◽  
Benjamin Kromoser
Keyword(s):  
Reinforced Concrete ◽  
Concrete Structures ◽  
Reinforced Concrete Structures ◽  
Textile Reinforced Concrete

Um dem ständig steigenden Bedarf an natürlichen Ressourcen und der zunehmenden Umweltverschmutzung entgegenwirken zu können, sind neue Lösungen im Bauwesen unumgänglich. Eine mögliche Herangehensweise ist die Erweiterung des Anwendungsgebietes von Beton durch Einsatz von textiler Bewehrung. Textile Bewehrung ist sehr feingliedrig und nicht rostend was eine deutliche Reduktion der erforderlichen Betondeckung möglich macht. Durch die leichtere Konstruktionsweise kann ein bedeutender Anteil des Baumaterials eingespart und zur Reduktion der erforderlichen Ressourcen beigetragen werden. Mit dem Beitrag „Donauwelle“ konnten die Autoren den von der MA 45 der Stadt Wien und der Vereinigung der Österreichischen Zementindustrie ausgeschriebenen Wettbewerb zur Neumöblierung der Wiener Donauinsel gewinnen. Mittlerweile wurde der Entwurf von der Stadt Wien bereits mehrfach realisiert. Im ersten Teil des vorliegenden Aufsatzes wird der Formfindungs- und Entwurfsprozess genauer beschrieben. Im zweiten Teil des Beitrags wird auf die durchgeführten Versuche, das Nachweiskonzept, die Bemessung und die Herstellung eingegangen.

Computational model of textile-reinforced concrete structures

2004 ◽  
Vol 82 (23-26) ◽  
pp. 1971-1979 ◽  
Author(s):  
S. Holler ◽  
C. Butenweg ◽  
S.-Y. Noh ◽  
K. Meskouris
Keyword(s):  
Reinforced Concrete ◽  
Computational Model ◽  
Concrete Structures ◽  
Reinforced Concrete Structures ◽  
Textile Reinforced Concrete
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