Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Canadian bridge design code provisions for fiber-reinforced structures
The paper presents a summary of pertinent design guidelines and commentary in the Canadian Highway Bridge Design Code for several types of fiber-reinforced structures. The section that deals with material properties of fiber-reinforced polymers/plastics (FRP) utilizes a strength confirmation technique based on the work of Jaeger and Bakht (1933). The proposed technique is quite powerful, especially in the case of limited data points. The section that deals with material properties does not discuss the effect of structure size on the short-term tensile strength of FRP. Research in the mechanical and aerospace fields has shown that the size effect can be quite substantial. The size effects can be introduced by applying the Weibull theory. The size effect is prominent in structures reinforced with CFRP laminates, because the currently recommended size for laminate coupons is small. It is clear that using coupon data without due attention to the size effect could lead to unconservative estimates of FRP strength. It is important that this issue be brought to the attention of designers using FRP products to reinforce or strengthen civil structures.
Canadian bridge design code provisions for fiber-reinforced structures
The paper presents a summary of pertinent design guidelines and commentary in the Canadian Highway Bridge Design Code for several types of fiber-reinforced structures. The section that deals with material properties of fiber-reinforced polymers/plastics (FRP) utilizes a strength confirmation technique based on the work of Jaeger and Bakht (1933). The proposed technique is quite powerful, especially in the case of limited data points. The section that deals with material properties does not discuss the effect of structure size on the short-term tensile strength of FRP. Research in the mechanical and aerospace fields has shown that the size effect can be quite substantial. The size effects can be introduced by applying the Weibull theory. The size effect is prominent in structures reinforced with CFRP laminates, because the currently recommended size for laminate coupons is small. It is clear that using coupon data without due attention to the size effect could lead to unconservative estimates of FRP strength. It is important that this issue be brought to the attention of designers using FRP products to reinforce or strengthen civil structures.
Canadian bridge design code provisions for fiber-reinforced structures
Die kanadischen Brückenbaurichtlinien für faserverstärkte Konstruktionen
Okeil, A.M. (Autor:in) / El-Tawil, S. (Autor:in) / Shahawy, M. (Autor:in)
Journal of Composites for Construction ; 5 ; 137-138
2001
2 Seiten, 1 Bild, 8 Quellen
Aufsatz (Zeitschrift)
Englisch
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