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(1 貴陽(yáng)金陽(yáng)建設(shè)投資有限公司，貴陽(yáng) 550020；2 貴州大學(xué)，貴陽(yáng) 550003)

［摘要］對(duì)一個(gè)超限大懸挑正高斯曲率平面管桁架斜交預(yù)應(yīng)力空間網(wǎng)格結(jié)構(gòu)進(jìn)行了理論分析和試驗(yàn)驗(yàn)證，內(nèi)容主要集中在靜力方面。試驗(yàn)測(cè)試結(jié)果與有限元法理論分析結(jié)果符合較好，說(shuō)明理論分析采用的有限元方法的可行性和準(zhǔn)確性，也進(jìn)一步證實(shí)了理論分析中所得出的預(yù)應(yīng)力的正、負(fù)效應(yīng)。通過(guò)模型試驗(yàn)，對(duì)這種新型預(yù)應(yīng)力空間結(jié)構(gòu)的力學(xué)性能有了更深入的認(rèn)識(shí)。

［關(guān)鍵詞］高斯曲率；模型試驗(yàn)；預(yù)應(yīng)力空間網(wǎng)格結(jié)構(gòu)；位移響應(yīng)；內(nèi)力響應(yīng)

Experimental research of super-span cantilever truss flat tube gaussian curvature oblique prestressed space grid structure

Zhou Shunhao1, Wu Jun1, Xiao Jianchun2, Ma Kejian2

(1 Guiyang Jinyang Construction Investment Co., Ltd., Guiyang 550020, China;

2 Guizhou University, Guiyang 550003, China)

Abstract:Experimental research and analysis of super-span cantilever truss flat tube gaussian curvature oblique prestressed space grid structure were conducted. The content is fasten on static analysis. The model experiment results show that the fitness of experimental data and finite element method analysis is good, and this shows the FEM is feasible and reliable. Furthermore the prestressing force produced positive and negative effects are also verified. The model experiment makes us understand the mechanics of the new spatial structures more deeply.

Keywords:gaussian curvature; model test; prestressed space grid structure; displacement response; force response

貴州省科技廳工業(yè)攻關(guān)項(xiàng)目(［2010］3002)，貴陽(yáng)市科技局工業(yè)攻關(guān)項(xiàng)目［2010］。

作者簡(jiǎn)介：周順豪，本科，高級(jí)工程師，Email:z.sh6666@163.com。

參考文獻(xiàn)

［1］張國(guó)軍，張愛(ài)林.預(yù)應(yīng)力網(wǎng)格結(jié)構(gòu)的研究［J］.北京工業(yè)大學(xué)學(xué)報(bào)，2004(3)：309-313.

［2］馬克儉，張華剛，鄭濤.新型建筑空間網(wǎng)格結(jié)構(gòu)理論與實(shí)踐［M］.北京：人民交通出版社，2006.

［3］馬克儉，李小紅，韋明輝，等.預(yù)應(yīng)力網(wǎng)格結(jié)構(gòu)體系的研究和應(yīng)用前景［J］.空間結(jié)構(gòu)，1994，1(2)：1-10.