Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Dimensioning of textile reinforced concrete structures
Textile Reinforced Concrete (TRC) is a very suitable composite material for the production of thin lightweight elements like facade panels. At this time some projects have been realized using textile reinforced elements. An important demand for the production of these elements is the availability of dimensioning methods. The well-known design methods for ordinary reinforced concrete cannot be applied to TRC-structures because the load-bearing behavior of TRC is different. The reasons are the differences in the bond performance and material properties of the textile reinforcement and reinforcing steel. Therefore extensive investigations have been carried out in which varying textile properties and loadings as tension, bending and shear were considered. Based on the results of the experimental and theoretical investigations design methods for tension, bending and shear loading have been derived which allow for the dimensioning of TRC-structures. The load-bearing behavior of TRC is influenced by material properties, amount and alignment of the textile reinforcement. The fiber material as well as the binding and the cross section of the roving have significant influence on the bond performance. Deviations between the direction of the tension forces and the rovings cause loss of strength mainly initiated by the actions on the filaments at the crack edges. Assuming that the loss of strength grows linearly with increasing angle between loading and roving direction results in good accordance with test results. Design models for the tension, bending and shear strength of TRC-elements have been derived by analogy with known models for steel reinforced concrete. Therefore, extensive test series have been earned out. The bending capacity of TRC-elements can be calculated by analogy with steel reinforced concrete with an additional factor considering the effects of the curvature of the beam. The shear capacity of beams made of TRC cannot be described by a pure truss model. An additional concrete contribution exists which is the capacity of the concrete compression zone. For the calculation of the truss contribution the angular change of the shear reinforcement has to be considered.
Dimensioning of textile reinforced concrete structures
Textile Reinforced Concrete (TRC) is a very suitable composite material for the production of thin lightweight elements like facade panels. At this time some projects have been realized using textile reinforced elements. An important demand for the production of these elements is the availability of dimensioning methods. The well-known design methods for ordinary reinforced concrete cannot be applied to TRC-structures because the load-bearing behavior of TRC is different. The reasons are the differences in the bond performance and material properties of the textile reinforcement and reinforcing steel. Therefore extensive investigations have been carried out in which varying textile properties and loadings as tension, bending and shear were considered. Based on the results of the experimental and theoretical investigations design methods for tension, bending and shear loading have been derived which allow for the dimensioning of TRC-structures. The load-bearing behavior of TRC is influenced by material properties, amount and alignment of the textile reinforcement. The fiber material as well as the binding and the cross section of the roving have significant influence on the bond performance. Deviations between the direction of the tension forces and the rovings cause loss of strength mainly initiated by the actions on the filaments at the crack edges. Assuming that the loss of strength grows linearly with increasing angle between loading and roving direction results in good accordance with test results. Design models for the tension, bending and shear strength of TRC-elements have been derived by analogy with known models for steel reinforced concrete. Therefore, extensive test series have been earned out. The bending capacity of TRC-elements can be calculated by analogy with steel reinforced concrete with an additional factor considering the effects of the curvature of the beam. The shear capacity of beams made of TRC cannot be described by a pure truss model. An additional concrete contribution exists which is the capacity of the concrete compression zone. For the calculation of the truss contribution the angular change of the shear reinforcement has to be considered.
Dimensioning of textile reinforced concrete structures
Voss, S. (Autor:in) / Hegger, J. (Autor:in)
2006
10 Seiten, 8 Bilder, 2 Tabellen, 16 Quellen
Aufsatz (Konferenz)
Englisch
Dimensioning of textile reinforced concrete structures
| British Library Conference Proceedings | 2006
Application and dimensioning of textile reinforced concrete
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Dimensioning and Application of Textile-Reinforced Concrete
| British Library Conference Proceedings | 2005