Positioning device and construction method of capping beam of prefabricated bridge

Abstract

The invention discloses a positioning device and construction method of a capping beam of a prefabricated bridge, and belongs to the field of construction of the capping beam of the prefabricated bridge. The positioning device mainly consists of truss frames, upper positioning grilles, low positioning grilles, upper positioning bolts, lower positioning bolts and the like, and through the positioning device, the mounting positions of a plurality of anchoring reinforcing bars pre-embedded in the tops of stand columns are guaranteed to be accurate without being influenced by the pouring vibration of the stand columns, so that the accurate positioning is realized; the corresponding construction method of the capping beam of the prefabricated bridge is combined, so that mud jacking pore canals for the capping beam pre-arranged on the capping beam can precisely be corresponding to anchoring reinforcing bars, the stress is reasonable, and the structure is safe; therefore, quick mounting of the capping beam of the prefabricated bridge is realized. The positioning device and the construction method of the capping beam of the prefabricated bridge have the advantages of being simple in structure, convenient to operate, economical and reasonable, high in assembling precision, energy-saving, emission-reduction and the like, can reflect factory, standardized and standard construction, and have notable economic benefits and social benefits.

Description

technical field [0001] The invention relates to the construction field of a prefabricated and assembled bridge cover beam, in particular to a positioning device for a prefabricated and assembled bridge cover beam and a construction method for a prefabricated and assembled bridge cover beam. Background technique [0002] The prefabricated construction of bridge engineering is a topic currently being studied, especially the substructure of bridges is in urgent need of a major breakthrough. The construction of existing bridge columns and cover beams is still mainly based on manual binding of steel bars and on-site pouring of concrete. This construction mode has the following defects: a large number of supports and formworks need to be erected, and the safety risk is large; a large amount of labor is required for on-site operations; construction efficiency is low The construction period is long; the impact on existing road traffic is large, and the social impact is large; dust, ...

AI Technical Summary

Problems solved by technology

The construction of existing bridge columns and cover beams is still mainly based on manual binding of steel bars and on-site pouring of concrete. This construction mode has the following defects: a large number of supports and formworks need to be erected, and the safety risk is large; on-site operations require a lot of labor; construction efficiency is low The construction period is long; the impact on existing road traffic is large, and the social impact is large; dust, mud, noise, lighting and other environmental factors interfere greatly, and civilized construction is difficult to meet the requirements of the public; the extensive construction mode leads to high energy consumption in the industry as a whole , serious waste

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