寒冷地区拱坝苯板保温层的效果及计算方法

The effect of insulating layer on arch dams located in cold area

寒冷地区拱坝的温度应力比南方大得多，温度荷载的影响可能超过水荷载．本文提出在拱坝下游面用苯板作永久保护层，以降低温度荷载、减小拱坝厚度，还给出了相应的计算方法．响水拱坝加固采用了苯板保温方案．

In this paper the polystyrene plate is proposed to be used as an insulating layerof the downstream face of arch dam to reduce the temperature stress and the damthickness.The method for calculating the effect of the insulating layer is given.