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From;
Peng Feng, Lieping Ye, R. Bao and J.G. Teng, “Development and analysis of the large-span FRP woven web structure”, (publisher not given in the pdf file), December 2004, DOI: 10.1201/9780203970850.ch98
ABSTRACT: An innovative large-span structural system, namely the FRP woven web structure (FRPWWS), is introduced in this paper. In an FRPWWS, the high-strength FRP strips are “woven” like bamboo strips in a Chinese bamboo mat to form a plane web. The outer edge of the web is anchored on an outer ring beam, and an inner ring beam is provided to anchor the FRP strips at the center of the web. The stiffness of the web to resist various loads is derived from the initial prestressing during the “weaving” stage and the additional ten- sioning as a result of the out-of-plane movement of the inner ring beam. As a result of the high strength-to- weight ratio of FRP, this new structural form offers an attractive option for the construction of spatial struc- tures with spans longer than are possible with conventional structural materials. In this paper, the basic layout and construction procedure for a simple FRPWWS is first presented. Three basic weaving patterns are next explained. Several variations of the basic structural system are also proposed. A simple mechanical model is presented for the deformation of individual FRP strips. Results from a finite element analysis of an example structure are also given. The results of these analyses confirm the feasibility of the FRPWWS.
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