Corrugated pipe and end mould fixing method

Abstract

The invention relates to the technology field of prestressed concrete box girder construction, and relates particularly to a method for fixing corrugated pipes and an end die. The method for fixing the corrugated pipes and the end die comprises the steps of selecting a connecting pipe (3) with an outer diameter being smaller than the inner diameter of the corrugated pipe, drawing a hole circle (2) on the end die plate (1) of the end die with chalk according to the number of the corrugated pipes on the cross section of the box girder and the central coordination position of each corrugated pipe, welding and connecting the connecting pipe (3) to the hole circle (2) site on the end die plate (1), enabling the central coordination position of the pipe hole of the connecting pipe (3) to correspond with the central coordination position of the hole circle (2), sheathing the end part of the corrugated pipe into the connecting pipe (3), and pressing the outer end part of the corrugated pipe with iron wires. The method in the invention has the advantages of convenient connection, and reduced repair and damage.

Description

technical field [0001] The invention belongs to the technical field of prestressed concrete box girder construction, and in particular relates to a method for fixing a corrugated pipe and an end form. Background technique [0002] The end formwork is welded by panel (end formwork), longitudinal ribs and transverse ribs. The end formwork, bottom formwork and outer formwork are all connected by adjustable screw rod support and pull bolts. During the construction of prestressed concrete box girder, the bellows and the end formwork are fixed. The traditional method is to cut holes on the end formwork (usually a large steel formwork), and then align the bellows with the corresponding holes on the end formwork. The bellows will go out of the hole of the end formwork, because in the standard span, the position of the bellows of each section of each piece of box girder is different, there will be a phenomenon that the hole position on the end formwork is not cut continuously, and th...

AI Technical Summary

Problems solved by technology

During the construction of prestressed concrete box girder, the bellows and the end formwork are fixed. The traditional method is to cut holes on the end formwork (usually a large steel formwork), and then align the bellows with the corresponding holes on the end formwork. The bellows will go out of the hole of the end formwork, because in the standard span, the position of the bellows of each section of each piece of box girder is different, there will be a phenomenon that the hole position on the end formwork is not cut continuously, and the end formwork will be blocked. Abandoned or repaired; this construction method will cause greater damage to the end formwork, a large amount of repair work, and even increase the number of sets of end formwork

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