Box girder casting method and forming die frame for box girder steel reinforcement framework

Abstract

The invention discloses a box girder casting method and a forming die frame for a box girder steel reinforcement framework, and aims to overcome the defects that in the prior art, the utilization rateof a box girder prefabricated pedestal is not high, the construction efficiency of the box girder is not high, the steel reinforcement binding quality of the box girder steel reinforcement frameworkcannot be guaranteed, and the construction operation difficulty is high. According to the box girder casting method, the steel reinforcement framework is installed, and the specific steps are as follows: prefabricating a steel reinforcement; setting a steel reinforcement binding area; binding the steel reinforcement framework; installing a corrugated pipe and a steel reinforcement cushion block; and hoisting the steel reinforcement framework. The forming die frame for the box girder steel reinforcement framework comprises a base and web steel reinforcement positioning devices symmetrically arranged on the base. According to the box girder casting method and the forming die frame for the box girder steel reinforcement framework, the utilization rate of a prefabricated pedestal is improved,and streamlining operation of prefabricated box girder construction is achieved; and the steel reinforcement framework is bound with the aid of the forming die frame, the position and the spacing of steel reinforcements are accurately positioned, the construction efficiency and quality of the binding of the steel reinforcements are effectively improved, and the method and the forming die frame aresuitable for pouring construction of box girders or T-shaped beams.

Description

technical field [0001] The invention relates to a pouring method of a box girder in bridge construction and a shaping formwork used for the steel bar skeleton of the box girder. Background technique [0002] In the prior art, in the construction of prefabricated box girders, the bundling of the box girder steel skeleton and the pouring of the box girder are all completed on the prefabricated pedestal. Since the prefabricated pedestal needs to have higher technical parameters, improving the utilization efficiency of the prefabricated pedestal is crucial to reducing the Production costs are significant. The construction steps in the prior art are: first bind the box girder steel skeleton in the box girder prefabricated pedestal and the box girder outer membrane, then install the inner membrane, bind the roof reinforcement cage, and finally pour. During the entire construction process, the tying of the box girder steel skeleton takes up a long time on the prefabricated pedesta...

AI Technical Summary

Problems solved by technology

[0003] The invention overcomes the disadvantages in the prior art that the utilization rate of the box girder prefabricated pedestal is not high, the efficiency of box girder construction is not high, the quality of t

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