Multifunctional hydraulic hanger for bridge prefabricated foundation construction and construction steps thereof

Abstract

The invention discloses a multifunctional hydraulic hanger for bridge prefabricated foundation construction and construction steps thereof. The multifunctional hydraulic hanger comprises a combined girder system structure and a prefabricated abutment, wherein a lifting lug for lifting a whole suspension system is arranged on the combined girder system; a preformed hole allowing a steel pipe pile to pass though is formed in the prefabricated abutment in the vertical direction; a through hole is formed in the combined girder system structure; the girder system structure is integrally linked with the prefabricated abutment through a tensioned prestressed steel reinforcement sleeved in the through hole; a horizontal position regulating mechanism is arranged on the combined girder system structure; and a vertical position regulating oil cylinder and a steel pipe pile guiding mechanism for regulating the verticality and overall elevation of an abutment body are arranged between the lower end surface of the combined girder system structure and the steel pipe pile. The multifunctional hydraulic hanger for the bridge prefabricated foundation construction further has the function of accurately positioning the prefabricated abutment in addition to the functions that the conventional hanger only possesses; and therefore, the construction difficulty caused by system transformation that the conventional hanger is adopted for hanging, then accurate positioning is realized and the like is reduced; and the construction efficiency is improved.

Description

technical field [0001] The invention relates to the field of bridge construction equipment, in particular to a multifunctional hydraulic spreader for bridge foundation construction and construction steps. Background technique [0002] The 110m-span steel box girder continuous girder bridge in the deep water area of ​​the Hong Kong-Zhuhai-Macao Bridge uses a buried bed prefabricated foundation (see Patent No. Patent). The specific steps are as follows: that is, to construct steel pipe composite piles on the seabed surface after excavation first, then install the prefabricated caps and piers, insert the prefabricated piers and steel pipe composite piles in precise alignment, and temporarily fix the prefabricated piers to the piles. On the body, through the key technical links such as water stop between the cap and the steel pipe composite pile and the construction of the joint, a complete force-bearing system is finally formed. During construction, if the conventional spread...

AI Technical Summary

Problems solved by technology

During construction, if the conventional spreader is used, it can only meet the lifting requirements. However, due to the harsh offshore operating environment, it is difficult to operate in the precise positioning of the pier, attitude adjustment and system conversion, and there are problems of low efficiency. Unable to meet the construction requirements of fully assembled caps and piers

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