884aa四虎影成人精品,99久久国产综合精品女图图等你,97在线观看永久免费视频,久久精品国产精品亚洲38,ⅵdeodesetv性欧美

（1 中國(guó)中元國(guó)際工程有限公司， 北京 100089； 2 同濟(jì)大學(xué)建筑工程系， 上海 200092）

［摘要］張拉整體高聳結(jié)構(gòu)是一種新型結(jié)構(gòu)體系，是張拉整體的概念在豎直方向上的應(yīng)用，尚未有任何功能性結(jié)構(gòu)建成。針對(duì)一座功能為電視塔的張拉整體高聳結(jié)構(gòu)，基于ASHRAE晴空輻射模型，模擬了該結(jié)構(gòu)在一天中的非均勻時(shí)變溫度場(chǎng)分布情況，并計(jì)算了結(jié)構(gòu)在該溫度場(chǎng)下的力學(xué)響應(yīng)。通過不同的太陽(yáng)輻射吸收系數(shù)取值，研究了索體材料和壓桿面漆的選取對(duì)于結(jié)構(gòu)熱學(xué)、力學(xué)性能的影響。結(jié)果表明，當(dāng)采用深色壓桿面漆時(shí)，結(jié)構(gòu)在太陽(yáng)輻射下索力損失最小。

［關(guān)鍵詞］張拉整體高聳結(jié)構(gòu)； 太陽(yáng)輻射； ASHRAE晴空輻射模型； 太陽(yáng)輻射吸收系數(shù)

中圖分類號(hào)：TU394文獻(xiàn)標(biāo)識(shí)碼：A文章編號(hào)：1002-848X(2018)13-0001-06

Thermal and structural behavior study of tensegrity tower structure under solar radiation

Ma Ruijia1, Ma Renle2

(1 China IPPR International Engineering Co., Ltd.，  Beijing 100089， China; 2 Department of Building Engineering， Tongji University， Shanghai 200092， China)

Abstract:Tensegrity tower structure is an innovative structural system, reflecting the application of tensegrity in vertical direction. However there isn′t any functional structure built yet. A tensegrity tower structure serving as a TV tower was studied. Based on ASHRAE solar radiation model, the non-uniform and time-varying temperature field on a certain day was simulated, and further the structural responses of the structure were calculated by using time-history analysis. By adopting various values of radiation absorptivity coefficient of cables and struts′ painting, the impacts of cable material and struts′ painting on thermal and structural behavior of the structure was researched. Results show that when adopting struts′ painting of dark color, the structure suffers minimum cable force loss under solar radiation.

Keywords:tensegrity tower structure; solar radiation; ASHRAE solar radiation model; radiation absorptivity coefficient

作者簡(jiǎn)介：馬瑞嘉，博士，Email:maruijia@ippr.net。