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［摘要］鳳凰國(guó)際傳媒中心工程主體辦公樓和演播樓為鋼筋混凝土結(jié)構(gòu)，外殼結(jié)構(gòu)采用復(fù)雜空間曲面的鋼結(jié)構(gòu)體系，將兩個(gè)混凝土樓連為一體，形成連體結(jié)構(gòu)。工程地上由六大部分組成，但是這六個(gè)部分相互之間并非完全獨(dú)立，形成一個(gè)非常復(fù)雜的結(jié)構(gòu)體系。由于建筑外形為復(fù)雜空間曲面，設(shè)計(jì)中利用空間三維建模軟件DP建立了鋼結(jié)構(gòu)精確三維空間幾何模型與計(jì)算模型，為更好地表現(xiàn)建筑效果，曲面網(wǎng)格主要構(gòu)件全部為空間彎扭構(gòu)件。工程采取了一系列的措施用以保證在現(xiàn)有計(jì)算機(jī)水平和施工水平的條件下達(dá)到足夠的計(jì)算精度、較高的設(shè)計(jì)效率，以及保證施工的可實(shí)施性。在進(jìn)行構(gòu)件截面的設(shè)計(jì)時(shí)，為充分利用鋼材性能，節(jié)省造價(jià)，一方面控制應(yīng)力比不宜過(guò)小，另一方面使用國(guó)產(chǎn)優(yōu)質(zhì)鋼材，包括Q345GJD，Q420GJD，Q460GJE。
［關(guān)鍵詞］復(fù)雜結(jié)構(gòu)；連體結(jié)構(gòu)；超限高層；復(fù)雜三維建模；彎扭構(gòu)件；文化建筑
中圖分類號(hào)：TU318.82文獻(xiàn)標(biāo)識(shí)碼：A文章編號(hào)：1002-848X(2011)09-0056-07
Structural design on the project of Phoenix International Media Center
Zhou Sihong, Zhu Zhongyi, Qi Wuhui, Shu Weinong, Zhang Shizhong, Wang Yi, Shen Kaizhen, Bu Longgui(Beijing institute of Architectural Design, Beijing 100045,China)
Abstract:The office building and the broadcasting building of Phoenix International Media Center are reinforced concrete structures, and connected by a spatial steel shell with a complex curved surface. There are six major parts of the structure, while they are not structurally independent from each other, therefore form a highly complicated system. A powerful 3D modeling software Digital Project was used to build precise 3D geometric models and computation models of this project. To fulfill the best architectural effects, the curved surface was designed with members subjected to spatial flexure-torsion loads. A series of measures were implemented to assure certain computation accuracy, design efficiency and construction feasibility based on the current computer technology and construction conditions. On the member design stage, in order to develop the best performance of the steel members and to save on the cost, the stress ratio has been prevented from an over low level, and selected high quality steel including Q345GJD, Q420GJD, Q460GJE from domestic manufacturers.
Keywords:complex structures; connected structure; high-rise building structure beyond code limited; complex 3D modeling; flexure-torsion members; cultural building
作者簡(jiǎn)介：周思紅，本科，高級(jí)工程師，Email:4s1@vip.163.com。
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