- 摘 要
-
（1清華大學(xué)建筑設(shè)計研究院有限公司， 北京 100084; 2 清華大學(xué)土木工程系， 北京 100084）
［摘要］天安門廣場紅飄帶景觀是國慶70周年慶典活動的重要工程，具有大跨度、大偏心、大懸挑、大扭轉(zhuǎn)等復(fù)雜結(jié)構(gòu)特征。同時，由于廣場建設(shè)條件的特殊性，造成必須現(xiàn)場無焊接拼裝、地基條件和抗風(fēng)安全性指標(biāo)難以量化等技術(shù)挑戰(zhàn)。提出預(yù)制鋼結(jié)構(gòu)模塊單元、現(xiàn)場全螺栓連接的設(shè)計理念，給出設(shè)計控制指標(biāo)的確定方法，深入進(jìn)行結(jié)構(gòu)計算分析，對全裝配模塊單元及劃分、螺栓連接關(guān)鍵節(jié)點等進(jìn)行創(chuàng)新性設(shè)計。鋼結(jié)構(gòu)模塊化設(shè)計理念得到充分檢驗。
［關(guān)鍵詞］紅飄帶； 全裝配鋼結(jié)構(gòu)； 結(jié)構(gòu)模塊單元； 螺栓節(jié)點
中圖分類號：TU398-7文獻(xiàn)標(biāo)識碼：A文章編號：1002-848X(2020)12-0053-05
Structural analysis and design of the Red Ribbon on the Tiananmen Square
WANG Lan1, SHI Yongjiu2, ZHANG Yizhou1, CHEN Jingwei1, LIU Yansheng1, CHEN Hong1
（1 Architectural Design & Research Institute of Tsinghua University Co., Ltd., Beijing 100084, China;2 Department of Civil Engineering, Tsinghua University, Beijing 100084, China）
Abstract:The Red Ribbon on Tiananmen Square is the important project for the National Day Celebration of the 70th Anniversary. There are many complex structural characteristics including large span, large eccentricity, large cantilever and large rotation etc. Meanwhile, the construction on Tiananmen Square leads to many technical challenges including without-weld-erect on site, the uncertainty of geotechnical conditions and the hard-to-quantify of wind load resist criterions. A steel-structure-modularity concept of factory made steel module-unit and whole-bolt-connect on site were put forward, and the way of the design control criterions′ determination was given, the structure calculation and analysis were studied systematically, and fully-assembly module-unit and key nodes of bolt connection were design creatively. The design concept of steel-structure-modularity has been examined successfully.
Keywords:the Red Ribbon; fully-assembly steel structure; module-unit; bolt node
作者簡介：王嵐，碩士，教授級高工，一級注冊結(jié)構(gòu)工程師，英國結(jié)構(gòu)工程師學(xué)會會員，Email:wanglan@tsinghua.org.cn。
