Concrete box beam using refrigeration stirrup

A concrete box beam using a refrigeration stirrup, comprising:

• a box beam provided with a plurality of steel bars in a circumferential direction;
• an evaporation pipe surrounding and connected to an outer side of the plurality of steel bars, an input end of the evaporation pipe being higher than an output end of the evaporation pipe;
• a water inlet pipe disposed at an outer side of the box beam, an output end of the water inlet pipe being connected to the input end of the evaporation pipe, and the water inlet pipe being connected to a three-way valve;
• and
• a water removal assembly disposed at an outer part of the box beam, located below the evaporation pipe and having a water sealing cavity, the output end of the evaporation pipe being connected to the water sealing cavity by means of a recovery pipe, the water sealing cavity being connected to a first pipeline, the first pipeline extending upwards and being communicated with the input end of the evaporation pipe, the first pipeline being combined with the evaporation pipe to form a stirrup to be hooped and connected to the steel bars;
• a lower end of the first pipeline being connected to a molecular sieve, the molecular sieve being used for limiting water vapor from passing through, and the water removal assembly being used for absorbing the water vapor.