Connecting component suitable for bridge stirrups

The curved variable thickness sleeve connection component solves the problem of difficult closed connection of bridge stirrups in the construction of thin-walled hollow piers, realizes efficient and stable stirrup connection, meets shear and seismic resistance requirements, and simplifies the construction process.

CN223689194UActive Publication Date: 2025-12-19山西省交通科技研发有限公司
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Patent Information

Application Number
CN202423262281.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-30
Publication Date
2025-12-19
Estimated Expiration
2034-12-30

AI Technical Summary

Technical Problem

Existing bridge stirrups are difficult to achieve closed connections in the construction of thin-walled hollow piers. In particular, the installation of rectangular stirrups at high altitudes is complex and it is difficult to meet the shear connection requirements. Welding methods require large spaces and are difficult to achieve. Existing technologies cannot effectively solve these problems.

Method used

A curved variable thickness sleeve connection component is adopted, which is thin at both ends and thick in the middle. It is designed with threaded connection. The ends of the bridge stirrups are threaded and connected to the inside of the sleeve. The distance between the midpoints of the sleeves does not exceed 10mm, so as to realize the closed loop connection of the stirrups.

Benefits of technology

This reduces construction complexity, improves construction efficiency, meets the shear and seismic resistance requirements of stirrup connections, and ensures connection quality.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223689194U_ABST
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Abstract

The utility model discloses a connecting component suitable for a bridge stirrup. The connecting component is a curve-shaped variable-thickness sleeve, the thickness of the two ends of the sleeve is small, the thickness of the middle is large, and a linear section is designed in the middle. Threads are machined at the tail ends of the bridge stirrups, and corresponding connecting threads are arranged in the corresponding connecting components. The distance between the end of the bridge steel bar and the middle point of the sleeve does not exceed 10 mm. Bridge stirrups which are not suitable for construction are connected through the curve type variable-thickness sleeve to form a ring in a closed mode, the space needed by construction is small, operation is convenient, the complexity of construction of the rectangular stirrups of the thin-wall hollow pier of the bridge is greatly reduced, and construction efficiency is improved; and the size of the thick sleeve at the joint of the stirrups ensures the anti-shearing and anti-seismic requirements of the stirrups in the plastic hinge section of the bridge pier column, and the connection quality of the stirrups is ensured.
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Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of road and bridge, specifically relates to a connecting component suitable for bridge stirrup. BACKGROUND

[0002] Continuous rigid frame bridge is used more in Chinese highway bridges due to its large spanning capacity and convenient construction characteristics, and its lower structure usually adopts thin-walled hollow pier. However, thin-walled hollow pier has the following defects in construction. According to the specification requirements, the bridge pier column stirrup should be set as a closed type, and the thin-walled hollow pier is usually constructed in segments, generally about 3-4m per segment. After the vertical reinforcement is installed, the rectangular stirrup needs to be sleeved from the top of the vertical reinforcement to the bottom of the vertical reinforcement at a designed interval. This process is difficult to implement in the air. If two open stirrups are installed on site and connected, the construction complexity can be greatly reduced. The reinforcement connection usually has binding or welding, mechanical connection and other ways. However, the binding cannot meet the firm requirements of the axial connection of the shear stirrup. When welding is adopted, the welding length should be not less than 10d (d is the diameter of the reinforcement), and the required space for construction is large. Due to the small design reinforcement spacing, the construction difficulty is large. SUMMARY

[0003] The purpose of the present application is to provide a connecting component suitable for bridge stirrup.

[0004] The connecting component suitable for bridge stirrup is a curved variable-thickness sleeve, the thickness of the two ends of the sleeve is small, the thickness of the middle is large, and a straight section is designed in the middle. The end of the bridge stirrup is processed with a thread, and the corresponding connecting thread is arranged in the inside of the connecting component. The distance between the end of the bridge reinforcement and the midpoint of the sleeve is not more than 10mm.

[0005] For the bridge stirrup with a diameter of 10mm, the minimum diameter of the connecting component is 15mm, and the minimum thickness is 2.5mm.

[0006] The curved variable-thickness sleeve is used to connect the bridge stirrup which is not suitable for construction and close the ring, the required space for construction is small, the operation is convenient, the complexity of the construction of the rectangular stirrup of the bridge thin-walled hollow pier is greatly reduced, and the construction efficiency is improved. The thick sleeve size at the connection of the stirrup ensures the shear and seismic requirements of the stirrup in the plastic hinge section of the bridge pier column, and ensures the connection quality of the stirrup. BRIEF DESCRIPTION OF DRAWINGS

[0007] Figure 1 is a whole view of the connecting component suitable for bridge stirrup.

[0008] Figure 2 is a front view of the connecting component suitable for bridge stirrup.

[0009] Figure 3is a cross-sectional view of a connecting member suitable for bridge stirrup.

[0010] Figure 4 is a connecting diagram of a connecting member suitable for bridge stirrup, wherein A and B are connected by the connecting member.

[0011] In the figure: 1-bridge stirrup, 2-thread, 3-curved variable thickness sleeve. DETAILED DESCRIPTION

[0012] Example 1

[0013] The connecting member suitable for bridge stirrup is a curved variable thickness sleeve, the thickness of both ends of the sleeve is small, the thickness in the middle is large, a straight section is designed in the middle, and the thicker part in the middle provides stronger shear strength for the connection of the stirrup; the end of the bridge stirrup is processed with a thread, and the inside of the corresponding connecting member is provided with a corresponding connecting thread; the distance between the end of the bridge steel bar and the midpoint of the sleeve is not more than 10mm. For a bridge stirrup with a diameter of 10mm, the minimum diameter of the connecting member is 15mm, and the corresponding minimum thickness is 2.5mm.

Claims

1. A connecting member suitable for use in bridge stirrups, characterized in that, The connecting member is a curved variable-thickness sleeve, the thickness of the two ends of the sleeve is small, the thickness of the middle part is large, and a straight section is designed in the middle part; the end of the bridge stirrup is processed with a thread, and the inside of the corresponding connecting member is provided with a corresponding connecting thread; the distance between the end of the bridge steel bar and the midpoint of the sleeve is not more than 10 mm.

2. The tie member for bridge stirrups according to claim 1, characterized by, For the bridge stirrup with a diameter of 10 mm, the minimum diameter of the connecting member is 15 mm, and the minimum thickness is 2.5 mm.