单向张弦梁结构的预应力取值研究

Prestressing Force Determination for Single Directional Beam-string Structure

对张弦梁结构预应力的作用和引入方法进行了分析,并采用了初应变法引入结构的预应力,对单向张弦梁进行了非线性分析,得到预应力对结构内力和位移的影响关系,并根据预应力的定义和作用提出了寻求合理预应力的方法。

Introduce the function of prestressing force and analyze its install method in beam-string structure, use initial strain method to import the prestressing force. Analyze the single directional beam-string structure with nonlinear finite element method, get the relationship between prestressing force and structure inner force ＆ displacement, and finally summarize a way to find the suitable prestressing force for beam-string structure.