Prefabricated assembly type bridge deck structure and construction method thereof

Abstract

The invention discloses a prefabricated assembly type bridge deck structure which comprises prefabricated beam bodies and prefabricated connecting beams. The prefabricated beam bodies are arranged in parallel in the transverse direction of the bridge, and a construction gap is reserved between every two adjacent prefabricated beam bodies; the prefabricated connecting beam is erected above the construction gap between the two adjacent prefabricated beam bodies and covers the construction gap; transverse steel bars are arranged in the prefabricated connecting beams in a penetrating mode, are perpendicular to the longitudinal direction of the bridge and are distributed in parallel at intervals. Vertical steel bars are reserved on the top surface of the prefabricated beam bodies, and the vertical steel bars and the transverse steel bars are correspondingly welded or bound; and a cast-in-place concrete layer covers the prefabricated beam bodies, the prefabricated connecting beams, the vertical steel bars and the transverse steel bars. The invention further discloses a construction method of the prefabricated assembly type bridge deck structure. Wet joint setting and effective connection between prefabricated beam bodies can be completed without formwork supporting, a bridge deck structure forms a unified whole, good force transmission between the beam bodies is achieved, and the stress performance and the anti-seepage performance of the bridge are guaranteed.

Description

technical field [0001] The invention relates to the technical field of bridge deck construction, in particular to a prefabricated bridge deck structure and a construction method thereof. Background technique [0002] The prefabricated assembly structure has the advantages of fast construction speed and excellent quality, and has significant advantages in terms of economy, constructability and construction period. Therefore, the application range of prefabricated assembly bridge components in the field of bridge construction is increasing . In the application of the bridge deck structure, attention should be paid to the assembly and connection stage of the prefabricated assembly bridge body components. Problems in the connection stage may cause cracking of the components at the slightest, affecting the performance of the bridge, or affecting the force transmission between the components at worst, and even cause serious consequences such as the collapse of the entire structur...

AI Technical Summary

Problems solved by technology

During the construction process, the construction personnel need to operate on the bridge and under the bridge at the same time. On the one hand, it is impossible to observe the combination of the wet joint formwork and the flange plate of the main girder nearby, and it is impossible to ensure that the joint between the wet joint formwork and the beam body is tight. On the other hand, the connecting part of the beam body cannot bear the force well, and it is easy to cause the problem that the new and old concrete stubbles are not straight, which affects the overall performance of the bridge; at the same time, there are also problems such as long construction period and low labor efficiency of construction personnel.

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