Thermal load is one of the main loads of arch dam, at present, the method of adopting thermal load of normal concrete in RCC arch dam calculation underestimates the action of temperature.

• 摘要温度荷载是拱坝最主要的荷载之一，目前，通常采用计算常态混凝土温度荷载的方法计算RCC拱坝，这低估了温降的作用。