摘要
结合张弦梁结构的特点,详细介绍了北京安福大厦中厅平面尺寸为50.4m×16.8m的双向张弦梁结构的布置和特点。研究表明,该张弦结构的刚度较大,对不对称荷载有较强的适应能力,且几何非线性程度不高,可以采用线性分析结果进行设计,并且针对张弦结构预应力值设计深入探讨了预应力值的确定原则,给出了确定预应力值的计算公式。
The plan size of atrium of Beijing Anfu building is 50.4m × 16.8m, two way beam string structure is adopted to support its roof. The layout and character of this project is described. By thorough investigation, it＇s concluded that the rigidity of the beam string structure in this project is relatively large, and its non-linearity is not obvious. The result of linear analysis can be combined for component design. This structure is adaptive for nonsymmetrical loading distribution. Value of string pre- tension is important in beam string structure design. The method of pre-tension value design is discussed thoroughly; the formula of pre-tension calculation is introduced.
出处
《建筑结构》
CSCD
北大核心
2006年第6期73-75,共3页
Building Structure
基金
国家自然科学基金资助(50278086)
关键词
张弦梁
预应力
非线性分析
beam string structure
pre-stress
non-linear analysis
