某室內(nèi)游樂(lè)中心微曲面網(wǎng)架結(jié)構(gòu)設(shè)計(jì)與分析*
張浩浩1，王小盾1,2，陳志華1,2，韓娟3，閆翔宇2,3
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（1 天津大學(xué)建筑工程學(xué)院，天津 300072； 2 天津市房屋建筑鋼結(jié)構(gòu)技術(shù)工程中心，天津 300072；3 天津大學(xué)建筑設(shè)計(jì)研究院，天津 300073）
［摘要］分析了某室內(nèi)游樂(lè)中心中央游樂(lè)大廳屋蓋的建筑造型，利用數(shù)值逆吊法實(shí)現(xiàn)自由曲面屋蓋的找形，提出四種結(jié)構(gòu)體系并對(duì)其進(jìn)行初步對(duì)比分析，確定采用各方面性能較好的微曲面網(wǎng)架。采用有限元軟件對(duì)結(jié)構(gòu)體系在各荷載工況和組合下進(jìn)行了靜力分析及動(dòng)力分析，得到了結(jié)構(gòu)的受力、變形和振型特點(diǎn)，通過(guò)將屋蓋加入整體結(jié)構(gòu)進(jìn)行對(duì)比分析，保證屋蓋設(shè)計(jì)的精準(zhǔn)及安全。［關(guān)鍵詞］數(shù)值逆吊法; 自由曲面找形; 微曲面網(wǎng)架; 靜動(dòng)力分析; 整裝分析中圖分類(lèi)號(hào)：TU393.3 文獻(xiàn)標(biāo)識(shí)碼：A 文章編號(hào)：1002-848X(2015)16-0030-05
Structural design and analysis of the less-curved surface grid of an indoor amusement centerZhang Haohao1, Wang Xiaodun1,2, Chen Zhihua1,2, Han Juan3, Yan Xiangyu2,3（1 School of Civil Engineering, Tianjin University, Tianjin 300072, China; 2 Tianjin Steel Building Structure Engineering Center, Tianjin 300072, China; 3 Architectural Design and Research Institute of Tianjin University, Tianjin 300073, China）Abstract: The architectural modeling of the amusement central hall roof of an indoor amusement center was studied, and the form-finding of the free-form surface roof was conducted with the numerical inverse hanging method. Four kinds of structural systems were presented and preliminary analysis and comparison were carried out, and a less-curved surface grid with better behavior in all aspects was adopted. Static analysis and dynamic analysis were conducted respectively for the less-curved surface grid under different load combinations with finite element software, thus the characteristics of force, deformation and vibration mode of the stucture were obtained. Furthermore, integral assembly analysis considering the interaction of the upper roof and the lower frame was conducted to guarantee the accuracy and safety of the roof design.Keywords: numerical inverse hanging method; free-form surface form-finding; less-curved surface grid; static analysis and dynamic analysis; integral assembly analysis
*天津市建設(shè)系統(tǒng)科學(xué)技術(shù)發(fā)展計(jì)劃（2014-03）。通訊作者：王小盾，副教授，碩士生導(dǎo)師，Email：maodun2004@126.com。
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