High-altitude water injection surcharge load system for bridge support prepressing

Abstract

The invention provides a high-altitude water injection surcharge load system for bridge support prepressing. The high-altitude water injection surcharge load system comprises a support formwork system, steel tube inclined struts, construction steel ropes, sand bags and waterproof cloth. The steel tube inclined struts are arranged at the two ends of the top of a support formwork; the construction steel ropes are divided into an upper layer and a lower layer and arranged below the bottom face of the top of the support formwork and on a water surface respectively in a transversely-and-oppositely-pulled mode; the sand bags are arranged on flange plates and cross beams of the support formwork; the waterproof cloth is laid on the top of the support formwork and the surfaces of the sand bags. The high-altitude water injection surcharge load system for bridge support prepressing is used high-altitude water injection type prepressing construction combined with sand bag surcharge load conducted for prepressing activities of detection of the overall stability of a framed bent in bridge support erection, the high-altitude water injection surcharge load system for bridge support prepressing can be widely applied to box girder framed bent construction and bridge floor pressing operation of girder bridges, major bridges and the like, and the high-altitude water injection surcharge load system for bridge support prepressing is simple in structure, easy and convenient to operate, capable of saving cost and safe in use.

Description

technical field [0001] The present invention relates to the field of construction, and in particular to a high-altitude water injection surcharge system for bridge support preloading, which is used for high-altitude water injection combined sand for the preloading activity of the overall stability inspection of the bent frame during the bridge support erection. The preloading construction including stacking can be generally applied to box girder bent construction and bridge deck pressurization operations such as viaducts and large bridges. Background technique [0002] At present, with the rapid development of the modern construction industry, the continuous updating of building construction methods, and the extensive use of new materials, various span bridges have emerged, including a large number of cast-in-place continuous box girders. [0003] The settlement of cast-in-place continuous box girder construction under different geological conditions is different. Therefore...

AI Technical Summary

Problems solved by technology

Since the cast-in-place continuous box girder has a large counterweight and requires more materials, the implementation consumes a lot of labor and mechanical equipment, and these materials are difficult to obtain

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