Segmental cantilever assembly pier capping beam and assembling method thereof

Abstract

The invention discloses a cantilever segment assembly pier capping beam suitable for rapid safety site construction. The cantilever segment assembly pier capping beam suitable for rapid safety site construction is characterized in that the capping beam is spliced by using a plurality of precast capping beam segments along the length of the capping beam; joints between the adjacent precast cappingbeam segments are in the forms of bracket type vertical splicing joints; shear keys are arranged on the end surfaces of the capping beam segments on the two sides of the joints; epoxy adhesives are coated on the end surfaces of the precast capping beam segments; and the adjacent precast capping beam segments are bonded by using the epoxy adhesives. The cantilever segment assembly pier capping beamusing the assembling method is beneficial for promoting miniaturization and light weight of precast assembly members; the transporting and hoisting difficulty is reduced; under an equivalent transporting and hoisting condition, more wide bridge capping beams can be constructed in a precast assembly manner so that the construction cost is reduced.

Description

technical field [0001] The invention relates to the technical field of bridge structure design and construction, in particular to a structural form of a prefabricated bridge pier cover beam, in particular to a segmental cantilever assembled bridge pier cover beam and an assembly method thereof. Background technique [0002] In recent years, prefabricated bridges have been vigorously promoted and applied more and more in our country. [0003] Prefabricated bridges have received extensive attention and research due to their many advantages such as shortening the construction period, improving efficiency, reducing the impact of construction on the current traffic, and adapting to modern and intensive production development models. The early prefabricated assembly technology of bridges was mainly aimed at the superstructure. With the development of urban economy and the improvement of urban comprehensive level, the requirements for the environment were higher, which put forward ...

AI Technical Summary

Problems solved by technology

[0006] However, when the bridge width and the cantilever of the cover girder are large, the length and self-weight of the cover girder will also increase accordingly.

Excessive self-weight not only affects the hoisting construction of the cover beam, but also adversely affects the safety and durability of the ground roads and bridges during transportation

Images