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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。
The building of China Petroleum Tower consists of four 22-storey L-shaped office buildings 90m high, of which two are in the middle and the main atrium under the conjoined building is a prominent highlight of the project structure. The main atrium roof adopts two-way string structure, set in the atrium to contact the main tower on both sides of the suspension bridge, suspended in the main atrium roof, both sides of the suspension bridge rigidly connected with the main structure. The atrium building facade is a single-layer cable-net curtain wall. The single-layer cable net structure is adopted. The steel canopy of the upright steel adopts the balance of back cables. The back cable and the curtain wall cable network work together to balance the canopy of the canopy steel. For structural safety and ease of use, a large number of calculation and analysis were conducted to determine the initial tensile force and diameter of the cable. The design method and calculation method of this structure were studied. Contrast between the measured data and the calculation results in the construction process, which provides a reference for similar projects in the future.