基于摩阻参数识别的锚下局部应力仿真分析与测试

Simulation Analysis and Test of Local Stress Under Anchorage Based on Identification of Friction Parameters

结合连续刚构桥2#节段的摩阻试验实测得到的摩擦系数与偏差系数,计算实际施工时钢束两端同时张拉的预应力损失,利用参数修正后的模型进行空间局部应力分析,并对理论值和实测值进行对比分析。

In this paper,the friction coefficient and deviation coefficient are obtained by the friction test of the No.2 section of continuous rigid frame bridge,and the prestressing loss at both ends of the steel beam is calculated during the actual construction,and the spatial local stress analysis is carried out by using the modified model of parameters.The theoretical value and the measured value are compared and analyzed.