Temperature field of PC box girder bridge based on GPRS temperature collection system

In order to study the temperature distribution and the corresponding temperature effects on pre-stressed concrete (PC) curved box girder bridge in Shandong Province, this paper builds and adopts an automatic remote real-time temperature collection system to collect temperature data on site, and further uses the software ANSYS for analysis. Based on the comparisons between the measured data and the simulation results, the following conclusions can be drawn: ➀ Our temperature monitoring system is reliable; ➁ The corresponding measured data of the web plate and flange plate exposed to the sun, vary more severely than that at other positions, so these plates need higher standard design and construction requirements; ➂ In the cold wave where still is sunshine, the box girder temperature effect behaves as sine-like curve.