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(1 廣州大學(xué)土木工程減震防災(zāi)省部共建協(xié)同創(chuàng)新中心, 廣州 510405; 2 廣州大學(xué)廣東省地震工程與應(yīng)用技術(shù)重點(diǎn)實(shí)驗(yàn)室, 廣州 510405; 3 廣州大學(xué)工程抗震減震與結(jié)構(gòu)安全教育部重點(diǎn)實(shí)驗(yàn)室, 廣州 510405; 4 香港華藝設(shè)計(jì)顧問(wèn) (深圳) 有限公司, 深圳 518057)

摘要: 中信城市廣場(chǎng)三期 B 地塊辦公樓主塔采用密柱框架-核心筒+環(huán)帶桁架混合結(jié)構(gòu)體系,針對(duì)此密柱網(wǎng)混合結(jié)構(gòu)體系的結(jié)構(gòu)特點(diǎn)和性能目標(biāo)要求進(jìn)行了抗震性能化設(shè)計(jì)并分類歸納總結(jié),提出一系列結(jié)構(gòu)加強(qiáng)措施. 通過(guò)增設(shè)適宜剛度的環(huán)帶桁架加強(qiáng)層從而增強(qiáng)外框架剛度;加強(qiáng)層樓板采用鋼梁+鋼水平撐+鋼筋桁架樓承板以可靠傳遞加強(qiáng)層外框架與核心筒間的剪力;分叉斜柱角度控制在 10°范圍以內(nèi),采用型鋼混凝土節(jié)點(diǎn)設(shè)計(jì);通過(guò)設(shè)置鋼框梁連接墻肢內(nèi)嵌型鋼暗柱形成整體墻內(nèi)約束型鋼邊框可以進(jìn)一步有效地提高底部和加強(qiáng)層核心筒的延性與增強(qiáng)組合結(jié)構(gòu)整體承載能力. 分析結(jié)果表明:通過(guò)各項(xiàng)措施后結(jié)構(gòu)滿足設(shè)計(jì)要求,整體性能安全可靠.

關(guān)鍵詞: 超高層結(jié)構(gòu); 風(fēng)洞試驗(yàn); 密柱框架-核心筒; 環(huán)帶桁架; 抗震性能化設(shè)計(jì)

中圖分類號(hào):TU973+. 23 文獻(xiàn)標(biāo)志碼:A 文章編號(hào):1002-848X(2023)04-0045-07

DOI:10. 19701 / j. jzjg. LS210086

Super high-rise structural design of office building on Block B in CITIC City Plaza Phase Ⅲ

WANG Jinghui1,2,3,4, ZHOU Fulin1,2,3, TAN Ping1,2,3, CHEN Huating1,2,3, WANG Yang4, LI Songsen4

(1 Collaborative Innovation Center for Earthquake Mitigation and Disaster Prevention of Civil Engineering, GuangzhouUniversity, Guangzhou 510405, China; 2 Guangdong Provincial Key Laboratory of Earthquake Engineering and ApplicationTechnology, Guangzhou University, Guangzhou 510405, China; 3 Key Laboratory of Engineering Anti-seismic andStructural Safety of Ministry of Education, Guangzhou University, Guangzhou 510405, China; 4 Hong Kong HuayiDesign Consultant (Shenzhen) Co. , Ltd. , Shenzhen 518057, China)

Abstract: The main building tower on Block B in CITIC City Plaza Phase Ⅲ adopts a hybrid structure system of densecolumn frame-core tube + ring belt truss. According to the structural characteristics and performance target requirements ofthis dense column grid hybrid structure system, the seismic performance-based design was carried out and classified. Insummary, a series of structural strengthening measures were proposed. Increase the rigidity of the outer frame by adding areinforcement layer with an appropriate rigidity ring belt truss. The reinforced floor slab adopts steel beams + steelhorizontal bracing + steel truss floor deck to reliably transmit the shear force between the outer frame of the reinforced layerand the core tube. The angle of the bifurcated inclined column is controlled within the range of 10°, and the joint design ofsteel concrete is adopted. The steel frame beam and the inner steel column of the wall pier form a constrained steel frameinside the wall, which can improve the ductility and overall bearing capacity of the core tube at the bottom and thereinforcement layer. The analysis results show that the structure meets the design requirements after passing variousmeasures, the overall performance is safe and reliable.

Keywords: super high-rise structure; wind tunnel test; dense column frame-core tube; ring belt truss; seismicperformance-based design

∗國(guó)家自然科學(xué)基金項(xiàng)目( 51978185),教育部創(chuàng)新團(tuán)隊(duì)研究發(fā)展計(jì)劃項(xiàng)目( IRT13057),廣東省教育廳創(chuàng)新團(tuán)隊(duì)項(xiàng)目(2016KCXTD016),廣州大學(xué)研究生創(chuàng)新能力培養(yǎng)資助計(jì)劃項(xiàng)目(2018GDJC-D06).

第一作者:王靜輝,博士,工程師,主要從事工程結(jié)構(gòu)設(shè)計(jì)、結(jié)構(gòu)抗震與減震控制研究,Email:260899537@ qq. com.

[引用本文] 王靜輝,周福霖,譚平,等. 中信城市廣場(chǎng)三期 B 地塊辦公樓超高層結(jié)構(gòu)設(shè)計(jì)[ J]. 建筑結(jié)構(gòu),2023,53(4):45-51. WANG Jinghui,ZHOU Fulin,TAN Ping,et al. Super high-rise structural design of office building on BlockB in CITIC City Plaza Phase Ⅲ[J]. Building Structure,2023,53(4):45-51.