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设置有通风孔的箱梁若浇筑和养护不当易出现裂纹现象。针对如何控制梁体通风孔处裂纹的产生,主要从箱梁的浇筑过程控制,原材料把关、梁体养生几个环节进行描述,为梁场箱梁预制提供参考。
Box girders provided with vents are liable to crack if placed and maintained improperly. Aiming at how to control the cracks in the vents of the beam body, this paper mainly describes the pouring process control of the box girder, the control of the raw materials and the health of the beam. It provides a reference for the beam box girder prefabrication.