Connecting structure for assembly type plate girder and pile foundation

By designing a connecting structure for assembled plate beams and pile foundations, sealing connection is achieved using steel cages, outer sleeves and seals, the slurry leakage and quality problems during construction are solved, and construction efficiency and bridge safety are improved.

CN222666523UActive Publication Date: 2025-03-25HENAN PROVINCIAL COMM PLANNING & DESIGN INST CO LTD
0 Cites 0 Cited by

Patent Information

Application Number
CN202420890290.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-04-26
Publication Date
2025-03-25
Estimated Expiration
2034-04-26

AI Technical Summary

Technical Problem

There are problems of corners and unevenness during the construction process of prefabricated plate beams and pile foundations, resulting in slurry leakage during pouring of connection nodes, affecting construction quality and bridge safety.

Method used

A connecting structure is designed, including a steel cage extending from the top of the pile foundation, a pile top ferrule, an outer sleeve, a temporary clamp and a flexible seal. The casting chamber surrounded by the outer sleeve and the pile foundation and the plate beam is sealed by welding and sealing to avoid slurry leakage.

Benefits of technology

This connecting structure does not require support formwork, which improves construction efficiency, ensures casting quality, avoids slurry leakage, and improves the construction quality and safety of bridges.

✦ Generated by Eureka AI based on patent content.
Patent Text Reader

Abstract

The utility model discloses a connecting structure for a fabricated plate girder and a pile foundation, which comprises a reinforcement cage extending out of the top of the pile foundation, and the reinforcement cage extends upwards into the plate girder; the connecting structure further comprises a pile top hoop, an outer sleeve and a temporary hoop, the pile top hoop is fixed to the top of the pile foundation, the reinforcement cage located between the pile foundation and the plate girder is sleeved with the outer sleeve, and the inner wall of the outer sleeve is fixedly connected with the pile top hoop. The temporary hoop is fixed to the pile foundation located below the pile top hoop, and the bottom of the outer sleeve extends downwards to the temporary hoop. The top of the outer sleeve is provided with a circle of flexible sealing piece enabling the outer sleeve and the bottom of the plate girder to be connected in a sealed mode. The pile foundation is connected with the outer sleeve, and the outer sleeve and the pile top hoop at the neck of the pile foundation are welded by a circle, so that the sealing performance is effectively ensured; the top of the outer sleeve is in sealed connection with the plate girder, so that the outer sleeve, the pile foundation and the plate girder define a pouring cavity with an upper opening, construction is simple, concrete pouring can be achieved without installing a formwork, the grout leakage situation in the pouring process can be avoided, and the construction quality is effectively guaranteed.
Need to check novelty before this filing date? Find Prior Art