Pre-pressing structure of bracket

Abstract

The invention discloses a pre-pressing structure of a bracket. The bracket comprises a horizontal rod, an inclined rod, an upper shearing force piece and a lower shearing force piece, wherein one endof the inclined rod is connected with the horizontal rod; the other end of the inclined rod is connected with the lower shearing force piece; the upper shearing force piece is connected with the horizontal rod; and the upper shearing force piece and the lower shearing force piece are respectively arranged on a high pier. The bracket further comprises a pre-pressing mechanism, wherein the pre-pressing mechanism comprises a threaded rod and a power device, the power device is arranged on the horizontal rod and is supported by the horizontal rod, one end of the threaded rod is fixedly arranged onthe ground, the other end of the threaded rod is connected with the power device, and the power device drags the threaded rod.

Description

technical field [0001] The invention relates to a bracket preloading structure. Background technique [0002] In the construction of bridge engineering, the use of scaffolding brackets (embedded parts brackets) can be seen everywhere, but improper use of brackets and unreasonable design often make them prone to accidents such as lateral collapse and load collapse. Bracket accidents have always been Construction accidents are relatively common in bridge construction. [0003] With the rapid development of bridge engineering, more and more continuous girders are being constructed. When constructing cast-in-place continuous box girders on the high piers of bridges across the Grand Canyon, in order to ensure construction safety, elastic-plastic deformation should be eliminated, line types should be adjusted, and deflection values ​​should be controlled. , to determine the elevation of the vertical formwork and the pre-throwing height, and to evaluate the stability, strength, an...

AI Technical Summary

Problems solved by technology

The preloading technology of the 0# section of the continuous beam has been continuously improved and matured with the development of the continuous beam. In the past, the preloading technology of the continuous beam with high piers was mostly bagged yellow sand, steel, water tanks, etc. This traditional surcharge preloading method , it is necessary to transport hundreds of tons of sand bags or water tanks to the high pier for surcharge preloading, which is extremely inconvenient and also has potential safety hazards

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