Method for constructing after bent anchoring of reinforcing steel bars in subway engineering

Abstract

The invention relates to the technical field of construction of subway reinforcing steel bars, in particular to a method for constructing after bent anchoring of reinforcing steel bars in subway engineering. The method comprises the following steps: adding the length of bent anchoring of the reinforcing steel bars in the linear length of a reinforcing cage to prepare straight reinforcing steel bars; and bending after binding forming and concrete pouring are carried out. In construction of a subway retaining structure, the construction efficiency is improved, the difficulty on breakage of piletop / wall top super-filling concrete is relieved, damage to pile top / wall top reinforcing steel bars in a breakage process is relieved, and the engineering quality is improved. In construction of a subway main body structure, the construction efficiency is improved, strength reliability of mechanical connection is improved further, loose connection of straight-reverse-thread sleeves is avoided effectively, for columns such as frame columns, the binding difficulty on stirrups is also reduced, and the method brings great benefits for engineering quality.

Description

technical field [0001] The invention relates to the technical field of steel bar construction in subways, and more specifically, to a construction method for steel bars in subway engineering after bending and anchoring. Background technique [0002] In the construction of subway envelope structure engineering, for stations with anti-floating design, the crown beam is generally used as a top beam. The main reinforcement of the envelope structure of the station needs to be anchored into the crown beam. However, in the subway envelope structure When the steel cage is processed, the steel bars with elbows are not conducive to the threaded connection of the on-site steel bars, which will have a certain impact on the construction progress and quality. It is difficult to remove super-filled concrete, and it will inevitably cause deformation to the elbow, which needs to be repaired later. [0003] In the construction of the main structure of the subway, for the reinforcement constr...

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Problems solved by technology

[0004] In order to overcome the deficiencies in the prior art, the present invention provides a construction method for subway engineering after the steel bar is bent and anchored, which solves the construction inconvenience caused by the main bar bent anchor in the prior art, effectively improves the construction efficiency, and ensures The mechanical connection quality of steel bars avoids common problems such as loose mechanical connections and excessive exposed wires in the construction process

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