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（浙江大學(xué)空間結(jié)構(gòu)研究中心，杭州 310058）

［摘要］張拉整體平板結(jié)構(gòu)由張拉整體單元按一定規(guī)則集成，其組成單元多為張拉整體三棱柱或四棱柱單元。利用張拉整體三棱柱左、右旋單元不同受力行為特點(diǎn)，采用節(jié)點(diǎn)直接相連的方式構(gòu)造了一種新型三棱柱張拉整體平板結(jié)構(gòu)。介紹了其拓?fù)錁?gòu)成，并通過找形、找力及荷載態(tài)分析三個(gè)步驟研究了單元及平板的結(jié)構(gòu)性能，總結(jié)出該平板結(jié)構(gòu)的設(shè)計(jì)原則。通過與普通網(wǎng)架的對(duì)比，顯示出新型平板結(jié)構(gòu)較好的整體剛度，具有工程應(yīng)用的可行性。

［關(guān)鍵詞］張拉整體；三棱柱單元；組合單元；平板結(jié)構(gòu)；幾何拓?fù)?/span>

中圖分類號(hào)：TU394文獻(xiàn)標(biāo)識(shí)碼：A文章編號(hào)：1002-848X(2011)03-0024-04

Research of a new triangular prism tensegrity plate structure

Zhang Xingqiang, Yuan Xingfei

(Space Structures Research Center, Zhejiang University, Hangzhou 310058, China)

Abstract:Tensegrity plate is consisted of the tensegrity units. The majority unit is tri-prism units or four-prism units. An exploring study on a new type of tensegrity plane structure was presented. It was made up of left-handed tri-prism units and right-handed ones in a node-node connecting way based on the different performances of these two types of units. The topology of this new structure was first investigated. Then the structural behavior of both units and the plate structure were investigated by formfinding, forcefinding and load analysis. The design rules of the plate structure were summarized. The technical index of the new structure and the space lattice structure was finally compared. The result proves this proposed new structure has great stiffness and can be applied in the real project.

Keywords:tensegrity; triprism unit; assembled unit; plate structure; geometric topology

*國(guó)家自然科學(xué)基金資助項(xiàng)目（50708092）。

通訊作者：袁行飛，教授，博導(dǎo)，Email:yuanxf@zju.edu.cn。

參考文獻(xiàn)

［1］FULLER R B. Tensile\|integrity structures: US, 3 063 521［P］. 1962-11-13.

［2］袁行飛, 董石麟. 索穹頂結(jié)構(gòu)的新形式及其初始預(yù)應(yīng)力確定［J］. 工程力學(xué), 2005, 22(2): 22-26.

［3］錢若軍, 董明, 楊聯(lián)萍, 等. 張力集成體系［J］. 空間結(jié)構(gòu), 2002, 8(3): 3-13.

［4］楊聯(lián)萍, 邱枕戈, 董明, 等. 平板型張力集成體系(索網(wǎng)架)結(jié)構(gòu)［J］. 空間結(jié)構(gòu), 2003, 9(4): 47-51.

［5］陳志華, 史杰, 劉錫良. 張拉整體三棱柱單元體試驗(yàn)［J］. 天津大學(xué)學(xué)報(bào), 2004, 37(12): 1053-1058.

［6］勒內(nèi)·模特羅. 張拉整體——未來(lái)的結(jié)構(gòu)體系［M］. 北京: 中國(guó)建筑工業(yè)出版社, 2007.

［7］QUIRANT J,KAZIAOUAL M N,MOTRO R. Designing tensegrity systems: the case of a double layer grid［J］. Engineering Structures,2003,25(9): 1121-1130.

［8］陳曉光, 羅堯治. 張拉整體單元找形問題研究［J］. 空間結(jié)構(gòu), 2003, 9(1): 35-39.

［9］董石麟, 羅堯治, 趙陽(yáng), 等. 新型空間結(jié)構(gòu)分析、設(shè)計(jì)與施工［M］. 北京: 人民交通出版社, 2006.

［10］董石麟, 袁行飛. 肋環(huán)型索穹頂初始預(yù)應(yīng)力分布的快速計(jì)算法［J］. 空間結(jié)構(gòu), 2003, 9(2): 3-8,19.

［11］PELLEGRINO S, CALLADINE C R. Matrix analysis of statically and kinematically indeterminate frameworks［J］. International Journal of Solids and Structures, 1986, 22(4): 409-428.