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(華東建筑設(shè)計研究院有限公司, 上海 200002)
摘要: 昆明春之眼商業(yè)中心主樓建筑高度 407m,為抗震設(shè)防烈度 8 度區(qū)建筑高度超 400m 的超高層建筑之一,主樓采用巨型支撐框架-鋼筋混凝土核心筒結(jié)構(gòu)體系. 主要介紹了主塔樓結(jié)構(gòu)設(shè)計關(guān)鍵點(diǎn),包括結(jié)構(gòu)體系、黏滯阻尼布置、消能減震設(shè)計、地基基礎(chǔ)的設(shè)計等;采用了屈曲約束支撐 BRB、柱間黏滯阻尼器及懸臂黏滯阻尼等措施進(jìn)行消能減震設(shè)計,采用彈塑性時程分析驗證了消能減震措施的有效性. 同時對不同施工順序進(jìn)行了模擬分析. 結(jié)果表明,不同的施工順序?qū)Σ煌悇e構(gòu)件的均有一定影響. 設(shè)計中需對施工順序予以重視. 在基礎(chǔ)設(shè)計中則著重關(guān)注了基巖起伏對塔樓不均勻沉降的影響,采取增補(bǔ)抗壓樁和后注漿增強(qiáng)的形式對基巖埋深較深的區(qū)域進(jìn)行加強(qiáng),保證其沉降滿足規(guī)范要求.
關(guān)鍵詞: 超高層結(jié)構(gòu); 巨型支撐框架; 消能減震設(shè)計; 黏滯阻尼器; 施工順序; 不均勻沉降
中圖分類號:TU398,TU318 文獻(xiàn)標(biāo)志碼:A 文章編號:1002-848X(2022)09-0036-06
DOI:10. 19701 / j. jzjg. HDY2204
Structural design of main building of Kunming Eye of Spring Commercial Center
TONG Jun, BAO Lianjin, WANG Dasui, ZHU Xiaodong, YAN Qi, REN Jibo, YAN Congzhi
(East China Architectural Design & Research Institute Co. , Ltd. , Shanghai 200002, China)
Abstract: The architectural height of the main building of Kunming Eye of Spring Commercial Center is 407m. It is one ofthe super high-rise buildings with a building height of more than 400m in 8-degree seismic fortification intensity region. Themain building adopts structural system of mega braced frame-reinforced concrete core. The key points and overall structuralindex of the structural design of the main tower were introduced, including structural system scheme, viscous dampinglayout, energy dissipation and damping design, foundation design, etc. The seismic energy dissipation design and shockabsorption was carried out by adopting measures such as buckling restraint bracing BRB, inter-column viscous damper andoutrigger viscous damping. Elasto-plastic analysis was carried out to verify the efficiency of energy dissipation measures. Atthe same time, different construction sequence was simulated and analyzed. The results show that different constructionsequences have a certain impact on different types of structural members. Attention should be paid to the constructionsequence in structural design. In the foundation design, the impact of bedrock undulation on the uneven settlement of thetower was paid attention to. The areas with deeper bedrock buried depth were strengthened by supplementary compressionpiles and post-grouting reinforcement to ensure that the settlement meets the specification requirements.
Keywords:super high-rise building; mega braced frame; seismic energy dissipation design; viscous damper; constructionsequence; uneven settlement
∗國家自然科學(xué)基金資助項目(5207804) ,“上海超高層建筑設(shè)計工程技術(shù)研究中心” 建設(shè)項目( 14DZ2252800) ,華建集團(tuán)科研項目(19-1 類-0142-結(jié)) .
第一作者:童駿,碩士,高級工程師,主要從事高層建筑及復(fù)雜建筑的結(jié)構(gòu)設(shè)計工作,Email:tj@ ecadi. com.
[引用本文] 童駿,包聯(lián)進(jìn),汪大綏,等. 昆明春之眼商業(yè)中心主樓結(jié)構(gòu)設(shè)計[ J] . 建筑結(jié)構(gòu),2022,52( 9) :36-41,103. TONG Jun, BAO Lianjin, WANG Dasui, et al. Structural design of main building of Kunming Eye of SpringCommercial Center[ J] . Building Structure,2022,52(9) :36-41,103.
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