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Pier reinforcing device and construction method thereof

A technology of bridge pier reinforcement and construction method, applied in the direction of bridge reinforcement, bridges, bridge parts, etc., can solve the problems of uneven construction quality, difficulty in continuous filling, large amount of grouting, etc. Reasonable and efficient reinforcement effect of grouting method

Inactive Publication Date: 2020-10-02
HEILONGJIANG COLLEGE OF CONSTR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the one hand, this rigid reinforcement method is complicated to weld, requires a high level of workmanship, and the construction quality is uneven; Grouting is not conducive to the discharge of air, and it is easy to leave air bubbles inside, and leaving grouting holes at the bottom to inject grout through the grouting pump will cause a large load on the grouting pump due to the high column of the pier and the large amount of grouting. continuous filling

Method used

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  • Pier reinforcing device and construction method thereof
  • Pier reinforcing device and construction method thereof
  • Pier reinforcing device and construction method thereof

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specific Embodiment approach 1

[0019] Specific implementation mode one: as Figure 1 to Figure 6 As shown, the present invention discloses a bridge pier reinforcement device, which includes a plurality of hoop units, the plurality of hoop units are vertically stacked in a cylindrical shape and sleeved on the outside of the pier column 6, and each adjacent two hoops The units are connected by two hoop connectors. The hoop unit is composed of two semicircular retaining walls 1 docked. The two fixed wings 1-1 located on the same side are correspondingly provided with perforations in the middle and are connected and fixed by bolts and nuts 2. The upper end of the semicircular retaining wall 1 is integrally provided with a slope 1-2 along its circumference, and the semicircular retaining wall 1 The lower end is provided with a bevel 1-3. When the two semicircular retaining walls 1 are docked, the slope 1-2 is butted to form a conical joint, and the bevel 1-3 is butted to form a conical slot. The hoop unit is pl...

specific Embodiment approach 2

[0020] Specific implementation mode two: as Image 6 As shown, this embodiment is a further description of specific embodiment 1. After each two adjacent hoop units are inserted, there is a gap α between the end faces of the two to ensure that the hoop connector is tapered after tightening. The connector is in tight contact with the tapered socket.

specific Embodiment approach 3

[0021] Specific implementation mode three: as image 3 , 6 As shown, this embodiment is a further description of Embodiment 2. The slope 1-2 of the semicircular retaining wall 1 is glued with a rubber pad, which acts as a seal when the two hoop units are inserted.

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Abstract

The invention discloses a pier reinforcing device and a construction method thereof, and relates to a reinforcing device and a construction method. The hoop units are vertically stacked to be cylindrical and arranged outside a pier cylinder in a sleeving mode. Every two adjacent hoop units are connected through two hoop connecting pieces. Each hoop unit is formed by butting two semicircular protection walls, the upper ends are in butt joint to form a conical connectorand the lower ends are in butt joint to form a conical slot; the hoop connecting piece comprises two U-shaped screw rods and twointernal thread connecting pipes; the opening ends of the two U-shaped screw rods are oppositely arranged, the hoop unit is hung at the connecting end, the two U-shaped screw rods are relatively close to or far away from each other when the internal thread connecting pipe rotates, a grouting hole and four thread through holes are formed in the side wall of the hoop unit, fine adjustment bolts arescrewed in the thread through holes, and the fine adjustment bolts are arranged in the radial direction of the hoop unit. The upper ends and the lower ends of the hoop units are provided with the conical connectors and the conical slots correspondingly, non-rigid connection is achieved, energy dissipation and shock absorption are facilitated, and layer-by-layer grouting from bottom to top is morereasonable.

Description

technical field [0001] The invention relates to a reinforcement device and a construction method, in particular to a bridge pier reinforcement device and a construction method thereof, belonging to the technical field of bridge maintenance and reinforcement. Background technique [0002] With the rapid development of the transportation industry, the substantial increase in transportation volume, the increasing weight of vehicles, and the long-term effect of the natural environment, many bridges that have been built for a long time have gradually become difficult to adapt to the needs of modern transportation. Bridge piers are the core of load transfer. Components, aging damage is more serious, and its reinforcement is the most important thing in the maintenance of old bridges. [0003] At present, the method of strengthening the pier cylinder is generally to weld and fix the steel cylinder retaining wall outside the pier cylinder after chiseling, and then grout the space bet...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D19/02E01D22/00E01D101/30
CPCE01D19/02E01D22/00E01D2101/30
Inventor 李宝昌袁忠文田东军高秋生王晶李丽李钊
Owner HEILONGJIANG COLLEGE OF CONSTR
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