- 摘 要
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(廣東省建筑設(shè)計(jì)研究院, 廣州 510010)
[摘要]中國(guó)南方航空大廈采用一種含裝配式全包鋼組合構(gòu)件的框架-核心筒結(jié)構(gòu)體系,為滿足建筑功能和抗震性能的要求,核心筒采用了外包鋼箱混凝土剪力墻。著重介紹鋼箱混凝土剪力墻的設(shè)計(jì)關(guān)鍵技術(shù),包括承載力計(jì)算、構(gòu)造措施、典型連接節(jié)點(diǎn)和防火措施等。采用ABAQUS軟件對(duì)鋼箱混凝土剪力墻軸壓性能和壓彎性能進(jìn)行了有限元模擬分析,并與高強(qiáng)鋼筋混凝土剪力墻受力性能進(jìn)行對(duì)比;分析了鋼箱橫肋間距、剪跨比、軸壓比對(duì)鋼箱混凝土剪力墻承載力影響。結(jié)果表明,鋼箱混凝土剪力墻極限承載力高,延性好,耗能能力強(qiáng),抗震性能優(yōu)異。
[關(guān)鍵詞]鋼箱混凝土剪力墻; 超高層結(jié)構(gòu); 力學(xué)性能; 節(jié)點(diǎn)連接; 防火措施
中圖分類號(hào):TU398文獻(xiàn)標(biāo)識(shí)碼:A文章編號(hào):1002-848X(2020)10-0023-05
Research and application of concrete filled steel box shear wall in super high-rise structures
SU Hengqiang, HE Jun, LIU Jinsong, LI Yuying
(Architectural Design and Research Institute of Guangdong Province, Guangzhou 510010, China)
Abstract:China Southern Airlines Building adopts a frame-corewall structural system of prefabricated steel composite members. In order to meet the requirements of building function and seismic performance, steel box-enclosed concrete shear wall is used in the corewall. The key design techniques of concrete filled steel box shear wall were mainly introduced, including bearing capacity calculation, construction measures, typical joint connections and fire prevention measures. Using ABAQUS software, finite element simulation analysis of the axial compression performance and bending performance of concrete filled steel box shear wall was carried out, and the mechanical performance of high strength reinforced concrete shear wall was compared. The influences of steel box transverse rib spacing, shear span ratio and axial compression ratio on the bearing capacity of concrete filled steel box shear wall were analyzed. The analysis results show that the concrete filled steel box shear wall has high ultimate bearing capacity, good ductility, strong energy dissipation capacity and excellent seismic performance.
Keywords:concrete filled steel box shear wall; super high-rise structure; mechanical property; joints connection; fire prevention measure
作者簡(jiǎn)介:蘇恒強(qiáng),碩士,教授級(jí)高級(jí)工程師,一級(jí)注冊(cè)結(jié)構(gòu)工程師,Email:13380079738@163.com。
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