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(北京維拓時代建筑設(shè)計股份有限公司, 北京 100025)
[摘要]基于歐洲CEB-FIP(1990)規(guī)范中關(guān)于混凝土徐變、干縮效應(yīng)的規(guī)定,對某設(shè)置有加強(qiáng)層的超高層建筑考慮施工找平并假定施工順序,進(jìn)行了施工模擬分析,主要分析內(nèi)容包括鋼筋混凝土核心筒和外框柱的豎向變形及豎向變形差異,以及變形和變形差異隨時間和空間的變化,并研究了長期變形和變形差異對主體結(jié)構(gòu)的影響。根據(jù)施工模擬分析結(jié)果和變形補(bǔ)償理論,計算了各層豎向構(gòu)件的下料預(yù)留長度對結(jié)構(gòu)進(jìn)行變形補(bǔ)償,以使結(jié)構(gòu)各層樓面標(biāo)高最終趨向于設(shè)計標(biāo)高。
[關(guān)鍵詞]超高層建筑; 混凝土徐變; 干縮效應(yīng); 施工模擬; 豎向變形; 變形補(bǔ)償
中圖分類號:TU318文獻(xiàn)標(biāo)識碼:A文章編號:1002-848X(2020)16-0052-05
Construction simulation analysis on a super high-rise building
ZHANG Jianliang, LENG Dongmei, XIE Longbao, LI Hongqiu
(Beijing Victory Star Architecture & Civil Engineering Design Co., Ltd., Beijing 100025, China)
Abstract:Based on the regulations about concrete creep and shrinkage effects in European standard CEB-FIP (1990), the construction simulation was conducted on a super high-rise building with strengthened stories considering construction level and assuming construction sequence. The main analysis contents included vertical deformation and deformation difference between the reinforced concrete corewall and the outside frame columns, and the changes in deformation and deformation difference with time and space. Further, the effect of the long-term deformation and deformation difference on the main structure was researched. According to the result of the construction simulation analysis and the theory of the deformation compensation, the reserved length of the vertical members of each layer was calculated, in order to make the elevation of each floor of the super high-rise building to eventually tend to design elevation in the end.
Keywords:super high-rise building; concrete creep; shrinkage effect; construction simulation; vertical deformation; deformation compensation
作者簡介:張建亮,碩士,高級工程師,一級注冊結(jié)構(gòu)工程師,Email:zhangjianliang01@126.com。
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