目前长江大桥及一些海上的大桥等跨度较大的大桥大多采用钢箱梁结构,其环境湿度较高,环境温差较大。因此配置良好的钢箱梁除湿系统显得尤为重要。通常钢箱梁内部湿度控制在45%以下。除湿系统的主要技术参数包括除湿量、送风量及送风压力。 At present, the bridge spanning the Yangtze River Bridge and some bridges at sea mostly adopt the steel box girder structure, which has high environmental humidity and large temperature difference. Therefore, a well-configured steel box dehumidification system is particularly important. Usually steel box girder internal humidity control below 45%. Dehumidification system, the main technical parameters include dehumidification capacity, air supply and supply pressure.