摘要
通过运用能量法,引入振型函数,针对不同的边界条件,分三种情况对振动频率法进行了比较详尽的分析,推导得到了索力与振动频率之间的计算公式,结合南京夹江桥和西安浐灞2号桥对推导公式进行了验证,结果表明该公式在一般情况下具有相当的精度,能够反映拉索的真实状态,满足施工控制的需求。
By using energy method, leading vibration mode function, according to different boundary conditions, this paper made detailed analysis on vibration frequency method with three cases, deduced the calculation formula between cable force and vibration frequency. Combining with Nanjing Jiajiang Bridge and Xi＇ an Chanba No. 2 Bridge, verified the formula, the results showed that the formula had considerable accuracy under general situation, could reflect the real state of cable, met the demand of construction control.
出处
《山西建筑》
2013年第5期150-152,共3页
Shanxi Architecture
关键词
振动频率法
边界条件
能量法
vibration frequency method, boundary condition, energy method
