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 tensioning 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 structures 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


摘要：本文將會(huì)介紹一種新的大跨度結(jié)構(gòu)，F(xiàn)RP織網(wǎng)結(jié)構(gòu)。在一個(gè)FRPWWS結(jié)構(gòu)中，高強(qiáng)度的FRP材料條像中國(guó)竹席中的竹片一樣被編織在一起形成一個(gè)平面網(wǎng)，這個(gè)網(wǎng)狀結(jié)構(gòu)的外圍錨固在一個(gè)圈形的梁上，結(jié)構(gòu)的中心處還有一個(gè)用于錨固織網(wǎng)的內(nèi)圈梁?？椌W(wǎng)結(jié)構(gòu)靠編織生產(chǎn)時(shí)的初步預(yù)施加應(yīng)力和內(nèi)圈梁面外運(yùn)動(dòng)引起的附加張力調(diào)整來抵抗遇到的各類荷載。由于FRP材料的具有較高的材料-重量比，這種全新的結(jié)構(gòu)形式為一些大跨度的空間建設(shè)提供了一種具有吸引力的選擇方案，該跨度長(zhǎng)于用常規(guī)結(jié)構(gòu)材料建筑的跨度。在本文中，首先介紹了簡(jiǎn)單的FRPWWS結(jié)構(gòu)的基本布局和施工步驟，接著闡明了三種基本的織造結(jié)構(gòu)，同時(shí)也提出了此類結(jié)構(gòu)方式的幾種變化。文中介紹了一個(gè)簡(jiǎn)單的力學(xué)模型用于單個(gè)的FRP條力學(xué)變形，也給出了一個(gè)實(shí)例結(jié)構(gòu)的有限元分析的過程。