摘要
通过对偏心距不同的两片直线钢束梁和一片曲线钢束梁进行试验,研究预应力对不同钢束位置和形态对实验梁的动刚度和静刚度的影响。发现预应力对钢束通过截面形心的P1梁的频率影响最小,对存在偏心距的直线钢束梁P2的挠度影响最大。
Through the test between two pieces of stright and a piece of curve prestressed girder with different eccentricity, research the impact of prestressing force on different steel strand position and morphology of the dynamic stiffness and static stiffness of the girder. The experimental results show that the impact of prestressing force on frequency of steel strand of the P1 girder through the centroid of the cross section is minimal , the most affected is deflection of P2 girder of straight steel strand with eccentricity.
出处
《低温建筑技术》
2013年第7期72-75,共4页
Low Temperature Architecture Technology
关键词
预应力
试验研究
动刚度
静刚度
prestressed
experimental study
dynamic stiffness
static stiffness
