橘子洲毛澤東青年藝術(shù)雕塑頭部結(jié)構(gòu)模型試驗(yàn)研究
胡習(xí)兵1，周鵬1，夏心紅2，張大龍1，易飛華1
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(1 中南林業(yè)科技大學(xué)土木工程與力學(xué)學(xué)院, 長沙 410004; 2 湖南省建筑設(shè)計(jì)院，長沙 410011)
［摘要］近年來，異型空間板殼結(jié)構(gòu)由于其良好的力學(xué)性能而廣泛應(yīng)用于實(shí)際工程中。以橘子洲毛澤東青年藝術(shù)雕塑結(jié)構(gòu)為工程背景，對雕塑頭部結(jié)構(gòu)進(jìn)行了縮尺比例模型試驗(yàn)研究，得到了試驗(yàn)?zāi)Ｐ偷幕炷灵_裂荷載和極限荷載，分析了荷載作用下橫向水平板對核心筒壁和外挑短肢剪力墻受力性能的影響。同時(shí)，采用有限元分析軟件MIDAS對該試驗(yàn)?zāi)Ｐ瓦M(jìn)行了對比分析，驗(yàn)證了MIDAS軟件分析結(jié)構(gòu)的可靠性。試驗(yàn)研究結(jié)果表明，水平板的設(shè)置極大地改變了試驗(yàn)?zāi)Ｐ偷氖芰π阅?，試?yàn)?zāi)Ｐ途哂忻黠@的塑性破壞特征。由于試驗(yàn)?zāi)Ｐ偷玫降拈_裂荷載大于結(jié)構(gòu)的實(shí)際承受荷載，因而結(jié)構(gòu)是安全的。根據(jù)試驗(yàn)研究結(jié)果，對雕塑實(shí)際結(jié)構(gòu)設(shè)計(jì)提出了建議。［關(guān)鍵詞］雕塑; 異型空間板殼結(jié)構(gòu); 模型試驗(yàn); 有限元分析中圖分類號：TU33+9 文獻(xiàn)標(biāo)識碼：A 文章編號：1002-848X(2015)12-0034-06Experimental study on head structure model of Mao Zedong Youth Art Sculpture on Orange IslandHu Xibing1, Zhou Peng1, Xia Xinhong2, Zhang Dalong1, Yi Feihua1(1 College of Civil Engineering and Mechanics, Central South University of Forestry and Technology, Changsha 410004, China; 2 Hunan Provincial Architectural Design Institute, Changsha 410011, China)Abstract:In recent years, heterotypic spatial plate-shell structure is great widely used in practical engineering due to its good mechanical behaviors. Based on the structure of Mao Zedong Youth Art Sculpture on Orange Island, a reduced-scale model of head structure of the sculpture was tested to obtain the concrete cracking load and ultimate load. Then, the influences of lateral horizontal slabs under the loads on mechanical performances of core wall and cantilever short-pier overhanging walls were analyzed. Meanwhile, the reliability of finite element analysis software MIDAS in analyzing the structure was verified through comparing the finite element model results with the experimental results. The experimental results show that the mechanical performance of experimental model is greatly changed by lateral horizontal slabs, and its plastic failure characteristic is obvious. The safety of head structure is reliable, because the concrete cracking load obtained by experimental model is larger than its actual bearing load. According to the experimental results, some suggestions were presented for the design of the actual structure.Keywords: sculpture; heterotypic spatial plate-shell structure; model experimental; finite element analysis
作者簡介：胡習(xí)兵，博士，副教授， Email: hxb_is_me@126.com。
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