884aa四虎影成人精品,99久久国产综合精品女图图等你,97在线观看永久免费视频,久久精品国产精品亚洲38,ⅵdeodesetv性欧美

（中國電子工程設(shè)計(jì)院， 北京 100142）

［摘要］北京大望京村2號(hào)地項(xiàng)目618-3#塔樓地上37層，建筑幕墻高度170m，結(jié)構(gòu)高度149-95m，結(jié)構(gòu)體系為鋼管混凝土框架+伸臂桁架+鋼筋混凝土核心筒混合結(jié)構(gòu)，屬于A級(jí)高度復(fù)雜高層建筑。為了最大限度地在滿足建筑功能的同時(shí)實(shí)現(xiàn)成本最優(yōu)化的目標(biāo)，設(shè)計(jì)中嚴(yán)格控制各項(xiàng)結(jié)構(gòu)不規(guī)則指標(biāo)，尤其是盡量減小加強(qiáng)層的剛度實(shí)現(xiàn)“有限剛度”以減輕由加強(qiáng)層造成的結(jié)構(gòu)內(nèi)力突變、剛度突變程度。針對(duì)本工程多項(xiàng)指標(biāo)接近規(guī)范限值的準(zhǔn)超限特點(diǎn)，設(shè)計(jì)中采取多項(xiàng)技術(shù)措施加以應(yīng)對(duì)，對(duì)主塔樓結(jié)構(gòu)進(jìn)行小震彈性計(jì)算、靜力彈性時(shí)程分析、大震下動(dòng)力彈塑性變形驗(yàn)算和加強(qiáng)層樓板有限元分析。結(jié)果表明，結(jié)構(gòu)各項(xiàng)指標(biāo)均滿足規(guī)范要求，可達(dá)到預(yù)期的抗震性能目標(biāo)。

［關(guān)鍵詞］北京大望京村2號(hào)地； 框架-核心筒； 混合結(jié)構(gòu)； 加強(qiáng)層； 伸臂桁架； 鋼管混凝土柱

中圖分類號(hào)：TU318文獻(xiàn)標(biāo)識(shí)碼：A文章編號(hào)：1002-848X(2018)21-0031-07

Structural design of 618-3# tower in 2nd plot of Beijing Dawangjing County

Yang Hua, Huang Lifeng, Xu Yuan

(China Electronics Engineering Design Institute, Beijing 100142, China)

Abstract:The 618-3# tower with 37 floors in 2nd plot of Beijing Dawangjing County has curtain wall with height of 170m and structural height of 149-95m. Composite structural system was adopted including concrete-filled steel tube column frame, outriggers and reinforced concrete corewall. It belongs to an A-class complex high-rise building. In order to maximize the cost optimization while satisfying the building functions, the irregular structural indexes were strictly controlled in the design. Especially the stiffness of the strengthened story was minimized to achieve “finite stiffness” to reduce the sudden change of internal force and stiffness caused by the strengthened story. Many indexes of this project were close to the norm limit value, so there were many technical measures adopted in the design to deal with it. The main tower structure was analyzed by elastic calculation and static elastic time-history analysis under frequent earthquake, dynamic elastic-plastic deformation checking calculation under rare earthquake and finite element analysis was conducted on strengthened floor. The results show that all the indexes of the structure meet the requirements of the code to achieve the expected seismic performance targets.

Keywords:2nd plot of Beijing Dawangjing County; frame-corewall; composite structure; strengthened story; outrigger; concrete-filled steel tube column

作者簡介：楊華，碩士，高級(jí)工程師，一級(jí)注冊(cè)結(jié)構(gòu)工程師，Email: yanghua@ceedi.cn。