- 摘 要
-
（1 天津大學(xué)建筑工程學(xué)院， 天津 300072；2 天津市土木工程結(jié)構(gòu)及新材料重點實驗室， 天津 300072）
［摘要］以天津天山海世界米立方項目為工程背景，重點研究樹狀結(jié)構(gòu)分杈級數(shù)對結(jié)構(gòu)整體性能的影響。介紹了樹狀結(jié)構(gòu)的二級分杈方案、一級分杈方案和普通柱方案，比較了三種方案在用鋼量、支座反力、桿件內(nèi)力、節(jié)點位移和自振頻率方面的結(jié)構(gòu)性能，得出結(jié)論：相比采用一級分杈方案而言，采用二級分杈方案可有效地減小桿件內(nèi)力和節(jié)點最大豎向位移，有分杈方案結(jié)構(gòu)的力學(xué)性能明顯優(yōu)于普通柱方案，說明樹狀結(jié)構(gòu)的應(yīng)用有利于結(jié)構(gòu)的整體受力。
［關(guān)鍵詞］樹狀結(jié)構(gòu); 方案比較; 二級分杈; 一級分杈; 普通柱
中圖分類號：TU393.3，TU318.1 文獻標(biāo)識碼：A 文章編號：1002-848X(2014)07-0065-06
Comparison and analysis of three tree structure schemes of Meters Cube
Zhang Qian1,2, Chen Zhihua1,2, Wang Xiaodun1,2, Liu Hongbo1,2
（1 School of Civil Engineering, Tianjin University, Tianjin 300072, China; 2 Tianjin Key Laboratory of Civil Engineering Structure & New Materials, Tianjin 300072, China）
Abstract: The effect of different level branching of tree structures on the overall structure performance was studied based on Tianjin Tianshan Sea World Meters Cube project. Two-level branching scheme, one-level branching scheme and ordinary column scheme of tree structures were described and structure performance of three schemes were compared such as steel consumption, supporting reaction force, member internal force, node displacement and natural frequency. Conclusions are that two-level branching scheme can effectively reduce member internal force and node maximum vertical displacement compared to one-level branching scheme. The mechanical properties of the structure with branching scheme are much better than that with ordinary column scheme, and it indicates that the application of tree structure is conducive to its overall performance.
Keywords: tree structure; scheme comparison; two-level branching; one-level branching; ordinary column
*大型特殊結(jié)構(gòu)布置條件下的鋼結(jié)構(gòu)工程設(shè)計、施工及控制關(guān)鍵技術(shù)研究(11ZCZDSF04800)。
作者簡介：張倩,博士研究生, Email: popzhqly@163.com。
參考文獻
［1］JEFFREY HUNT, WALTER HAASE, WERNER SOBEK. A design tool for spatial tree structures［J］. Journal of the International Association for Shell and Spatial Structures, 2009,50(1):3-10.
［2］武岳, 張建亮, 曹正罡. 樹狀結(jié)構(gòu)找形分析及工程應(yīng)用［J］. 建筑結(jié)構(gòu)學(xué)報, 2011, 32(11): 162-168.
［3］張建亮. 樹狀結(jié)構(gòu)形態(tài)分析與工程應(yīng)用［D］. 哈爾濱: 哈爾濱工業(yè)大學(xué), 2011.
［4］王明貴, 顏鋒. 鋼管樹狀結(jié)構(gòu)設(shè)計［J］. 鋼結(jié)構(gòu), 2006, 21(6): 47-49.
［5］陳俊, 張其林, 謝步瀛. 樹狀柱在大跨度空間結(jié)構(gòu)中的研究和應(yīng)用［J］. 鋼結(jié)構(gòu), 2010, 25(3): 1-4, 21.
［6］譚德遠. 黃金樹結(jié)構(gòu)兩種節(jié)點可選方案的性能比較［J］. 鋼結(jié)構(gòu), 2002, 17(3): 19-20.
［7］薩鵬程. 樹狀結(jié)構(gòu)空間節(jié)點性能研究［D］. 哈爾濱: 哈爾濱工程大學(xué), 2009.
［8］譚仲毅. 樹狀結(jié)構(gòu)施工技術(shù)研究與應(yīng)用［D］. 重慶: 重慶大學(xué), 2002.
［9］王亞麗. 弦支拱桁架單層網(wǎng)殼復(fù)合結(jié)構(gòu)體系的分析與研究［D］. 天津: 天津大學(xué), 2011.
