低温季节波形钢腹板PC箱梁桥铺装温度场试验

On temperature field test of pavement for corrugated steel web PC box girder bridge in low-temperature seasons

依托郑州市某波形钢腹板PC组合箱梁桥工程,通过JMT型温度传感器与无线自动化综合测试系统,对波形钢腹板PC组合箱梁桥沥青混凝土铺装冬季温度场进行了数据采集分析,结果表明,铺装结构的温度场同外界气温一样呈现周期性特点;随铺装深度的增加,铺装层内材料温度的变化具有滞后性,并表现出一定的迟缓性,且横隔板处和墩顶处温度基本相近。

Based on some corrugated steel web PC composite box girder bridge in Zhengzhou City, the paper undertakes the data collection analy-sis for the temperature field for the corrugate steel web PC composite box girder bridge pavement from JMT temperature sensor and wireless auto-mated comprehensive measurement system, proves by the result that the temperature field of the pavement structure displays the similar periodic features with the outer air temperature, and indicates the changes of the materials＇ temperature lags behind along with the increasing pavement depth, which also shows some retardation, and the temperatures at the diaphragm and pier-top are similar.