- 摘 要
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(1 青島杰地建筑設(shè)計(jì)有限公司， 青島 266071； 2 浙江綠城建筑設(shè)計(jì)有限公司， 杭州 310007)
摘要: 某超限高層辦公樓采用鋼管混凝土疊合柱框架￣鋼筋混凝土核心筒￣伸臂桁架結(jié)構(gòu)體系。 地處較高烈度區(qū)的Ⅳ類場地，存在高度超限、構(gòu)件間斷、承載力突變、局部穿層柱等不規(guī)則項(xiàng)，屬于超限高層建筑。 結(jié)構(gòu)設(shè)計(jì)過程中進(jìn)行了小震彈性分析和大震動力彈塑性分析，針對結(jié)構(gòu)的薄弱部位采取了一系列有效的加強(qiáng)措施。 采用基于性能的設(shè)計(jì)方法進(jìn)行結(jié)構(gòu)抗震設(shè)計(jì)，可以實(shí)現(xiàn)預(yù)期的 D 級抗震性能目標(biāo)。 同時還對框架柱的選型進(jìn)行了比對分析，對外圍框架柱與核心筒的豎向變形進(jìn)行了施工模擬分析，對加強(qiáng)層伸臂桁架節(jié)點(diǎn)進(jìn)行了有限元分析，分析結(jié)果表明:結(jié)構(gòu)安全可靠，滿足預(yù)設(shè)的性能目標(biāo)。
關(guān)鍵詞: 超限高層建筑； 鋼管混凝土疊合柱； 加強(qiáng)層； 伸臂桁架節(jié)點(diǎn)分析； 豎向變形差； 抗震性能設(shè)計(jì)
中圖分類號:TU318 文獻(xiàn)標(biāo)志碼:A 文章編號:1002￣848X(2022)02￣0071￣08
DOI:10. 19701 / j.jzjg.20200396
Structure design of an out￣of￣code high￣rise office building
ZHOU Qiang1， REN Guangyong2， ZHENG Mujun2， SHI Jitao1
(1 Gad (Qingdao) Architectural Design Co.， Ltd.， Qingdao 266071， China；2 Zhejiang Greenton Architectural Design Co.， Ltd.， Hangzhou 310007， China)
Abstract: Structural system of steel tube￣reinforced concrete column frame and reinforced concrete core tube and outriggerswere adopted. It is located in the Ⅳ￣class site of higher intensity， with irregular items such as height exceeding， componentdiscontinuity， abrupt change of bearing capacity， partial crossing column and so on， belongs to the out￣of￣code high￣risebuilding. During the process of structural design， the elastic analysis of frequently￣occurred earthquake and the dynamicelasto￣plastic analysis of rarely￣occurred earthquake were carried out. A series of effective measures were taken to strengthenthe weak parts of the structure. The performance￣based design method was adopted for structural seismic design which canachieve the expected D￣class seismic performance target. At the same time， a comparative analysis on the selection of framecolumns was also carried out， a simulation analysis on the vertical deformation of the external frame columns， the coretube， and finite element analysis was carried out on the outriggers joint of the strengthened story. The results show that thestructure is safe and reliable to meet preset performance objectives.
Keywords: out￣of￣code high￣rise building； steel tube￣reinforced concrete column； strengthened story； outriggers jointanalysis； difference of vertical deformation； seismic performance design
第一作者:周強(qiáng)，碩士，正高級工程師，一級注冊結(jié)構(gòu)工程師，主要從事結(jié)構(gòu)設(shè)計(jì)及防災(zāi)減災(zāi)方面的研究，Email:28868009@qq.com。
[引用本文] 周強(qiáng)，任光勇，鄭木軍，等. 某超限高層辦公樓結(jié)構(gòu)設(shè)計(jì)[ J]. 建筑結(jié)構(gòu)，2022，52( 2):71￣78. ZHOUQiang，REN Guangyong，ZHENG Mujun，et al. Structure design of an out￣of￣code high￣rise office building[ J]. BuildingStructure，2022，52(2):71￣78.
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