［摘要］中国石油大厦工程由高度90m的四栋22层的L形办公楼组成，其中中间两座为连体，连体下方主中庭为工程结构突出的亮点。主中庭屋盖采用双向张弦结构，中庭内设置联系两侧主体塔楼的吊桥，悬吊在主中庭屋盖上，吊桥两边与主体结构刚性连接。中庭建筑立面为单层索网幕墙，采用单层索网结构，立面钢雨篷采用背索平衡，背索与幕墙索网共同作用，平衡雨篷钢梁。为了结构安全和使用方便，进行了大量计算分析，确定了索的初始张拉力、直径，对这种结构的设计方法、计算方法进行了研究。施工过程中实测数据与计算结果的对比验证，为今后类似工程提供了一定的参考。
［关键词］连体高层建筑；主中庭；双向张弦；吊桥；单层索网；索
中图分类号：TU351文献标识码：A文章编号：1002-848X(2011)09-0080-05
Atrium cable structure design of the Petroleum Building of China
Chen Lin, Shu Weinong (Beijing Institute of Architectural Design, Beijing 100045, China)
Abstract:The Petroleum Building of China is contained four L-shaped office buildings with 22 floors, 90m height. In side of these buildings, the two buildings is connected. The main atrium under the connected-structure is the outstanding character of this project. The main atrium roof adopts two-way string structure. A suspended bridge connects the main body tower inside of the main atrium with rigid connection, which is suspended on the roof of the main atrium. The elevation of the atrium building adopts single-layer cable nets structures. The elevation rain-cover is balanced by the back cable, which can combine action with curtain-wall cable to make the steel beam balance of rain-cover. A great deal of calculation analysis were done to make sure the safety and the using convention. The method of how to gain the initial tensioning force and diameter of the cable is proposed. The calculation and the design method of the structure are researched. The measured data obtained from the construction process are compared with calculation results to provide basis for future similar projects.
Keywords:connected high-rise building; main atrium; two-way string structure; suspended bridge; single-layer cable nets; cable
作者简介：陈林，硕士，高级工程师，Email:4s1@vip.163.com。
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