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(1 廣東省建筑設(shè)計研究院有限公司, 廣州500010; 2 廣東筠誠建筑科技有限公司, 云浮 527300)
[摘要]深圳冠澤金融中心超高層辦公塔樓采用帶腰桁架的巨柱框架-核心筒結(jié)構(gòu)體系,針對此稀柱網(wǎng)混合結(jié)構(gòu)體系的結(jié)構(gòu)設(shè)計、抗震性能要點進行了歸納總結(jié);提出此類結(jié)構(gòu)體系為了滿足規(guī)范設(shè)計、抗震性能目標C,建議采取如下加強措施:增設(shè)帶適宜剛度腰桁架的加強層以增強外框架剛度;加強層樓板采用鋼梁+鋼水平撐+鋼筋桁架樓承板以可靠傳遞加強層外框架與核心筒間的剪力;設(shè)置約束型構(gòu)造鋼梁,與墻肢內(nèi)型鋼柱形成墻內(nèi)約束型鋼邊框以提高底部、加強層核心筒的延性與整體性;多遇地震作用下,此體系核心筒需承擔100%地震剪力。
[關(guān)鍵詞]超高層建筑; 帶腰桁架的巨柱框架-核心筒結(jié)構(gòu); 風(fēng)洞試驗; 彈塑性時程分析
中圖分類號:TU398-7文獻標識碼:A文章編號:1002-848X(2021)01-0001-05
Structural design of super high-rise office towers of Guanze Financial Center in Shenzhen
ZHANG Weisheng1,2, REN Enhui1, LI Peng1, WEI Wen1, JIN Guangyan1, LI Lun1
(1 Architectural Design & Research Institute Co., Ltd. of Guangdong Province, Guangzhou 500010, China;2 Guangdong Juncheng Building Technology Co., Ltd., Yunfu 527300, China)
Abstract:The super high-rise office tower of Guanze Financial Center in Shenzhen adopts the mega column frame and corewall structural system with waist trusses. The main points of the structural design and seismic performance of this hybrid structural system with sparse column grids were summarized. In order to meet the code design requirements and seismic performance target C, the following strengthening measures were recommended for this kind of structural system. The strengthening layer with the waist truss of appropriate stiffness was added to enhance the rigidity of the outer frame. The floor of strengthening layer adopted steel beams + horizontal steel braces + steel rebar truss floor to reliably transfer the shear force between the outer frame and the corewall. Constrained structural steel beams were set to form a constrained steel frame in the wall with the inner steel columns of the wall limbs to improve the ductility and integrity of the reinforced corewall at the bottom and the strengthening layer. Under frequent earthquakes, the corewall of the system shall bear 100% seismic shear force.
Keywords:super high-rise building; mega column frame and corewall structure with waist trusses; wind tunnel test; elastic-plastic time-history analysis
作者簡介:張偉生,碩士,高級工程師,一級注冊結(jié)構(gòu)工程師,Email: 8238418@qq.com;
通信作者:任恩輝,碩士,高級工程師,一級注冊結(jié)構(gòu)工程師,Email: 494050073@qq.com。