亚热带季风气候区域箱梁温度场及效应分析

Analysis of Temperature Field and Effect of Box Girder in Subtropical Monsoon Climate Region

介绍了独峒大桥主梁温度测点布置情况,比较分析了亚热带季风气候区域和温带季风气候区域的箱梁温度场分布的差异,采用多项式函数拟合亚热带季风气候区域的箱梁在典型天气下的温度场,据此计算的轴向应变0?和曲率?作为温度参数代入桥梁结构电算程序(BDCMS)中,验证了理论计算值与实测值吻合情况良好,有足够的工程精度.

This paper introduces Dudong bridge temperature measuring point arrangement, compares the differences in the box girder temperature distribution between the subtropical monsoon climate region and temperate monsoon climate region, and adopts the polynomial function to fit the temperature field of box girder under the typical subtropical monsoon climate region. The calculated axial strain and curvature are employed as the temperature parameters to plug into the bridge structure calculation program （BDCMS）, which validates that the theoretical values agree well with the measured values.