摘要
采用等效荷载法计算张弦木梁钢弦摩擦损失,钢弦曲线型式为抛物线型、折线型两种。钢筋曲线转化成与荷载平衡的等效外部荷载,摩擦力由等效荷载的正交分量乘以摩擦系数求得。此方法适用于钢筋任意曲线形式,不仅可以计算钢筋全长上的摩擦损失,而且也可以计算钢筋中间部位长度上的摩擦损失。此方法与计算摩擦损失的经典方法进行对比,两者结果十分接近。
The method of equivalent load to calculate the friction loss of steel string in the Timber Beam String Structure with broken-line steel string and parabolic steel string is used.The curve of steel string is changed into equal-effect external load to balance the load.The product of orthogonal component of equal-effect load and friction coefficient is the friction force.The method can be used for arbitrary curved shape of rebar.It can calculate steel friction loss not only in the full-length,but also in the middle part.Compared with the traditional method to calculate the friction loss of steel string,the two consequences are similar.
出处
《低温建筑技术》
2011年第7期47-49,共3页
Low Temperature Architecture Technology
基金
内蒙古自治区高等学校科学研究资助项目(NJ09179)
关键词
张弦木梁
等效荷载法
摩擦损失
timber beam string structure（TBSS）
equivalent load method
friction loss
