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(1 北京建工集團(tuán)有限責(zé)任公司, 北京 100055; 2 河北省土木工程災(zāi)變控制與災(zāi)害應(yīng)急重點(diǎn)實(shí)驗(yàn)室, 廊坊 065201; 3 華北科技學(xué)院建筑工程學(xué)院, 廊坊 065201; 4 江蘇瀘寧鋼機(jī)股份有限公司,江蘇 214231)

摘要: 北京工人體育場(chǎng)屋蓋結(jié)構(gòu)體系受力復(fù)雜,桿件局部受力變化對(duì)整體結(jié)構(gòu)影響較大,且由于結(jié)構(gòu)整體性強(qiáng),鋼結(jié)構(gòu)成型前需要構(gòu)件承擔(dān)施工過(guò)程中的自重荷載. 為了解決這一個(gè)問(wèn)題,設(shè)置了 23 個(gè)超高組合截面臨時(shí)支撐體系來(lái)承受結(jié)構(gòu)自重荷載. 對(duì)臨時(shí)支撐體系整體設(shè)計(jì)進(jìn)行分析,同時(shí)論述了臨時(shí)支撐的安裝及拆除過(guò)程;為了保證臨時(shí)支撐在安裝、拆除和使用過(guò)程的安全性,采用 MIDAS Gen 軟件進(jìn)行有限元模擬. 結(jié)果表明臨時(shí)支撐能有效承受鋼結(jié)構(gòu)未成型時(shí)的自重荷載,同時(shí)安裝、拆除和使用過(guò)程中臨時(shí)支撐的位移和應(yīng)力均能滿足要求.

關(guān)鍵詞: 北京工人體育場(chǎng); 臨時(shí)支撐; 施工技術(shù); 鋼結(jié)構(gòu)屋蓋

中圖分類號(hào):TU399 文獻(xiàn)標(biāo)志碼:A 文章編號(hào):1002-848X(2023)06-0065-06

DOI:10. 19701 / j. jzjg. ZJ220112

Design of super-high composite section support system for steel structure roof installation of Beijing Workers Stadium

GUO Yaxing1, XU Wenhan1, LIU Cong2,3, JI Gang4

(1 Beijing Construction Engineering Group Co. , Ltd. , Beijing 100055, China; 2 Hebei Key Laboratory of CivilEngineering Catastrophe Control and Disaster Emergency Response, Langfang 065201, China; 3 ArchitecturalEngineering College, North China Institute of Science and Technology, Langfang 065201, China; 4 Jiangsu LuNing Steel Machinery Co. , Ltd. , Jiangsu 214231, China)

Abstract: The structural system of the roof of Beijing Workers Stadium has complex forces, and the local force variation ofthe bars has a great influence on the overall structure. Moreover, due to the strong structural integrity, the steel structureneeds members to bear the dead weight load during the construction process before forming. In order to solve this problem,23 super-high composite section temporary support systems were set to bear the dead weight load of the structure. The wholedesign of temporary support system was analyzed, and the installation and unloading process of temporary support werediscussed. In order to ensure the safety of temporary support during installation, unloading and using, MIDAS Gen softwarewas used for finite element simulation. The results show that the temporary support can effectively bear the dead weight loadwhen the steel structure is not formed, and the displacement and stress of temporary support can meet the requirements inthe process of installation, unloading and using.

Keywords:Beijing Workers Stadium; temporary support; eonstruction technique; steel structure roof

∗河北省省級(jí)科技計(jì)劃資助(22375410D).

第一作者:郭雅興,學(xué)士,工程師,主要從事土建施工,Email:820855847@ qq. com.

[引用本文] 郭雅興,徐文漢,劉聰,等. 北京工人體育場(chǎng)鋼結(jié)構(gòu)屋蓋安裝超高組合截面支撐體系設(shè)計(jì)[J]. 建筑結(jié)構(gòu),2023,53( 6):65-70. GUO Yaxing,XU Wenhan, LIU Cong, et al. Design of super-high composite section supportsystem for steel structure roof installation of Beijing Workers Stadium[J]. Building Structure,2023,53(6):65-70.