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 (中國(guó)航空規(guī)劃建設(shè)發(fā)展有限公司, 北京 100120)

［摘要］烏蘭察布城展館主體形式為鋼筋混凝土框架剪力墻，內(nèi)部存在空間鋼桁架、雙層鋼網(wǎng)殼等多種結(jié)構(gòu)類型，存在大懸挑、錯(cuò)層、鋼與混凝土連接、鋼結(jié)構(gòu)異形節(jié)點(diǎn)等。雙層球幕鋼網(wǎng)殼作為懸挑桁架的支點(diǎn)，也是設(shè)計(jì)的一個(gè)亮點(diǎn)和難點(diǎn)。從結(jié)構(gòu)基礎(chǔ)選型到主體結(jié)構(gòu)整體分析、從鋼結(jié)構(gòu)整體計(jì)算設(shè)計(jì)思路到復(fù)雜關(guān)鍵節(jié)點(diǎn)分析均進(jìn)行了詳細(xì)的闡述，重點(diǎn)利用PKPM及MIDAS兩種軟件對(duì)主體結(jié)構(gòu)進(jìn)行了多遇地震下的反應(yīng)譜分析和彈性時(shí)程分析，并將結(jié)果進(jìn)行比較。對(duì)雙層球幕球殼結(jié)構(gòu)進(jìn)行分體計(jì)算，確保結(jié)構(gòu)的經(jīng)濟(jì)及安全性。

［關(guān)鍵詞］多遇地震；  鋼桁架； 關(guān)鍵構(gòu)件

中圖分類號(hào)：TU318    文獻(xiàn)標(biāo)識(shí)碼：A    文章編號(hào)：1002-848X(2015)03-0087-06

Structural design on Wulanchabu City Exhibition Hall

Song  Xiaohong，  Xu Rui， Jing Hui， Li Ling

（China Aviation Planning and Construction Development Co., Ltd.,  Beijing 100120, China）

Abstract:The reinforced concrete frameshear wall system is used in the main structure of Wulanchabu City Exhibition Hall with spatial steel truss and doublelayer spherical latticed shell structure in inner space. Some irregularities exist in the structure such as large cantilever, staggered floor, connection of steel and concrete and specialshaped steel joint. The doublelayer spherical latticed shell, which is the fulcrum of the cantilever truss, features the highlight and difficulty in design. The selection of foundation structure, overall analysis on the main structure, the overall design and calculation ideas and complex key joint analysis were introduced in detail. The response spectrum and elastic timehistory analysis of the main structure under the frequent earthquake were accomplished by using programs of PKPM and MIDAS, and the results were analyzed and compared. The doublelayer spherical latticed shell was analyzed separately to ensure the economy and safety of the structure.

Keywords:frequent earthquake;  steel truss； key member

作者簡(jiǎn)介：宋曉紅，高級(jí)工程師，一級(jí)注冊(cè)結(jié)構(gòu)工程師，Email：sxhzzmtt@163.com。

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