CNPC building Beijing
China National Petroleum Corporation (CNPC) is an integrated international energy company.
The CNPC 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．
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。
Unique Building，level 1
独特建筑第一级菜单
