Construction method for anchoring roof steel column anchor bolt

Abstract

The application discloses a construction method for roof steel column anchor bolt anchoring, which comprises construction preparation, column point measurement and positioning, column foot groove, drainage treatment and layered waterproof treatment, anchor bolt drilling, secondary drainage and blowing, anchor bar construction, closed water test, steel column installation and pole foot encapsulation. The construction method of the application sets up a "secondary drainage" procedure aiming at the problem that anchor bolt drilling may penetrate the original structure layer and cause secondary water seepage, that is, water formed by reverse seepage due to water accumulation in the structure layer is drained in time after drilling, and high-pressure blowing is carried out, so that the anchor bolt hole is in an absolutely dry and clean state before the anchor bar is planted, thereby providing a prerequisite for full play of the bonding performance of underwater special anchor bar glue and ensuring the reliability and safety of anchor bar anchoring.

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