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（華南理工大學(xué)建筑設(shè)計(jì)研究院有限公司， 廣州 510641）

［摘要］貴陽(yáng)國(guó)際金融中心1號(hào)樓為高度375-1m的超限高層建筑，采用帶高位轉(zhuǎn)換的鋼管混凝土柱框架-鋼筋混凝土核心筒結(jié)構(gòu)體系，豎向變形差引起結(jié)構(gòu)內(nèi)力重分布，其影響不可忽略。為研究其施工過程和使用過程中的豎向變形差，采用軟件SAP2000，調(diào)用非線性分析模塊，考慮混凝土的收縮和徐變，進(jìn)行了施工過程及使用過程的全過程模擬分析。分析結(jié)果表明，考慮混凝土的收縮和徐變不影響層高及鋼管混凝土柱下料長(zhǎng)度，但鋼管混凝土柱與核心筒混凝土剪力墻之間的內(nèi)力重分配效應(yīng)較大，特別是外框架柱軸力在后期約有20%的增幅，構(gòu)件及基礎(chǔ)設(shè)計(jì)時(shí)應(yīng)充分考慮各種不利工況。

［關(guān)鍵詞］超限高層建筑； 鋼管混凝土柱； 收縮； 徐變； 豎向變形差； 全過程模擬

中圖分類號(hào)：TU355文獻(xiàn)標(biāo)識(shí)碼：A文章編號(hào)：1002-848X(2019)20-0040-06

Vertical differential deformation analysis of No.1 building for Guiyang International Financial Center

Lin Yaoming, Zhou Yuezhou, Wang Gongwen

(Architectural Design & Research Institute of SCUT Co., Ltd., Guangzhou 510641, China)

Abstract:The No.1 building of Guiyang International Financial Center is an out-of-code high-rise building of 375-1m height. It adopts concrete-filled steel tubular (CFST) column and concrete corewall structural system with the transfer story at high elevation. The vertical differential deformation causes the structural internal forces redistribution and the effection should not be neglected. In order to study the difference of vertical deformation during construction and use, the whole process of construction and use was simulated and analyzed by  SAP2000 software and using the non-linear analysis module and considering the shrinkage and creep of concrete. The analysis results show that considering the shrinkage and creep of concrete, the height of story and the length of concrete-filled steel tubular column are not affected, but the redistribution effect of internal force between concrete-filled steel tubular column and concrete shear wall of corewall is larger, especially the increase of axial force of outer frame column is about 20% in the later period, and all kinds of unfavorable working conditions should be fully considered in the design of members and foundations.

Keywords:out-of-code high-rise building; concrete-filled steel tubular(CFST) column; shrinkage； creep; vertical differential deformation; whole stage simulation

作者簡(jiǎn)介：林瑤明，碩士，教授級(jí)高級(jí)工程師，Email:linym@scut.edu.cn。