- 摘 要
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（浙江省建筑設計研究院， 杭州 310006）
［摘要］義烏之心城市生活廣場是一座超長商業(yè)建筑，大量采用大跨度結構和大懸挑結構以營造無柱開闊的建筑空間。因建筑凈高要求，需在超30m大跨預應力混凝土梁上開大洞穿越設備管線。采用MIDAS/Gen軟件分析了溫差效應對結構的影響和大跨度室內天橋的人行振動舒適度，并采用ABAQUS軟件分析了大梁開大洞后的應力狀態(tài)。結果表明，溫差效應對1層端部豎向構件和2層端部樓面梁影響最大，計算時應考慮溫度作用參與荷載組合，適當加大板厚可使大跨度室內天橋的人行振動舒適度滿足規(guī)范要求；洞口預埋鋼套管可顯著改善應力集中。
［關鍵詞］義烏之心城市生活廣場; 超長結構； 溫度分析； 大跨度結構； 舒適度； 有限元分析
中圖分類號：TU318-82文獻標識碼：A文章編號：1002-848X(2017)11-0101-05
Analysis on key problems of super-long commercial structure of Yiwu′s Heart-Lifestyle Center
Lu Yunjun, Hu Shiqiang， Li Jiangbo， Zhang Jingzhe， Jiao Jian， Peng Guozhi
(Zhejiang Institute of Architectural Design, Hangzhou 310006, China)
Abstract:Yiwu′s Heart-Lifestyle Center is a super-long commercial building, with a large number of large-span structures and large cantilever structures to create a pillar-free open space. Due to the requirement of the clear height of architecture, a large hole needs to be opened for equipment pipeline on the 30m-long large-span prestressed concrete beam. The effect of temperature difference effect on the structure and the comfort degree of pedestrian vibration of large-span indoor flyover were analyzed by MIDAS/Gen software. The stress state of the large beam with large holes was analyzed by ABAQUS software. The results show that the temperature difference effect has the greatest influence on the vertical member at the end of the first floor and floor beam at the end of the second floor. The calculation should take into account the effect of the temperature on the load combination. Appropriate increase of the thickness of the large-span indoor flyover can satisfy specification requirements. Embedded steel casing at the hole can significantly improve the stress concentration.
Keywords:Yiwu′s Heart-Lifestyle Center； super-long structure; temperature analysis; large-span structure; comfort degree; finite elements analysis
*浙江省建筑設計研究院科研基金（［2015］07號）。
作者簡介：盧云軍，碩士，一級注冊結構工程師，Email：carl.loo@qq.com。
