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High pier of continuous rigid frame bridge

A technology for high piers and rigid-frame bridges, which is applied to the field of high piers of continuous rigid-frame bridges, can solve the problems of insufficient strength and easy inclination of high piers, and achieves improved safety, high bottom structural fastness, and is not easy to incline. Effect

Inactive Publication Date: 2021-12-21
任小强
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Although it can meet the needs of continuous rigid frame bridge deformation, the strength cannot meet the requirements when the height of the pier is high, and the center of gravity increases with the increase of height, which makes the high pier easy to tilt and poses a safety risk

Method used

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  • High pier of continuous rigid frame bridge
  • High pier of continuous rigid frame bridge
  • High pier of continuous rigid frame bridge

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] Example 1, please refer to Figure 1-6 , a high pier of a continuous rigid frame bridge, comprising:

[0046] The pier main unit 1 includes angle steel bars 11, surrounding baffles 12, central reinforcement columns 13 and poured concrete 17, four angle steel bars 11 are arranged in a rectangular distribution, and enclosures are provided between adjacent angle steel bars 11 The plate 12, the angle steel bar 11 and the surrounding baffle 12 form a square tube, the central reinforcement column 13 is located in the middle of the square tube, and pouring concrete 17 is poured in the square tube;

[0047] The pier main unit 1 also includes an internal structure ring 14, spoke rods 15 and reinforcing vertical ribs 16, the outer side of the central reinforcement column 13 is vertically equidistant from the internal structure ring 14, and the side of the central reinforcement column 13 is fixed with a corresponding internal structure The connecting spoke rod groups of the ring ...

Embodiment 2

[0057] Example 2, please refer to figure 1 and Figure 4-6 , a high pier of a continuous rigid frame bridge, the structure of this embodiment is roughly the same as that of the above embodiment, the difference is that:

[0058] Also includes a base reinforcement unit 3, the base reinforcement unit 3 includes a mounting frame 31, a side reinforcement assembly, a reinforcement operation assembly and a vertical reinforcement assembly, the installation frame 31 is located below the seat plate 21, and the bottom of the seat plate 21 is provided with four The clamping block 24, four clamping blocks 24 are clamped with the four sides of the installation frame 31, the reinforcement operation component is installed in the installation frame 31, and the side reinforcement components connected to the reinforcement operation component are installed around the installation frame 31, The bottom around the outside of the installation square frame 31 is equipped with a vertical reinforcement...

Embodiment 3

[0065] Embodiment three, please refer to figure 1 , a high pier of a continuous rigid frame bridge, the structure of this embodiment is roughly the same as that of the above embodiment, the difference is that:

[0066] Also includes a top mounting part 5, the top mounting part 5 includes a mounting plate 51, a fixed column 55 and a diagonal brace, the top center of the buffer movable plate 411 is fixed with the mounting plate 51, and the middle part of the mounting plate 51 is fixed with a fixed column 55, and The side circular array of the mounting plate 51 is provided with four diagonal braces. The diagonal brace can be installed through the installation plate 51, and the installation position can be raised by the diagonal brace. At the same time, it is also convenient to insert into the installation plate groove at the bottom of the bridge. The fixed column 55 is used as the main support point in the middle, which is convenient for connection with the bottom of the bridge. ...

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Abstract

The invention provides a high pier of a continuous rigid frame bridge. The high pier comprises: a pier main body unit which comprises angle steel bars, surrounding baffles, a center reinforcing column and pouring concrete, wherein the four angle steel bars are distributed in a rectangular shape, the surrounding baffles are arranged between the adjacent angle steel bars, the angle steel bars and the surrounding baffles form a square cylinder, the center reinforcing column is located in the middle of the interior of the square cylinder, and pouring concrete is poured in the square cylinder; a pier base assembly which is mounted at the bottom of the square cylinder; and a deformation buffering unit which comprises a fixed square plate, a buffering movable plate, a turning buffering assembly and a vertical buffering assembly, wherein the fixed square plate is fixed to the top of the square cylinder, and the middle of the surface of the fixed square plate is connected with the center of the bottom of the buffering movable plate through the turning buffering assembly. The requirement for deformation of the continuous rigid frame bridge can be met while the rigidity requirement of the high bridge pier is met, the bottom structure of the high bridge pier is firm and not prone to inclination, and safety can be improved.

Description

technical field [0001] The present application relates to the technical field of high bridge piers, in particular to a high bridge piers of continuous rigid frame bridges. Background technique [0002] At present, the prestressed concrete continuous rigid frame bridge is a commonly used bridge. The pier of this kind of bridge generally adopts double-limb solid pier or double-limb thin-walled hollow pier. When the pier is very high, in order to meet the needs of bearing capacity, the section The size is often made very large. When the section size of the bridge pier is very large, the stiffness of the bridge pier is also very large, which often cannot meet the needs of continuous rigid frame bridge deformation. [0003] In the prior art, the application number is 201620873926.6, which proposes to include the main girder of the continuous rigid frame bridge, the main girder of the continuous rigid frame bridge is connected with the upper part of the pier body of the bridge lim...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D19/02E01D19/00E01D101/26
CPCE01D19/02E01D19/00E01D2101/268
Inventor 任小强刘晖陈正跃
Owner 任小强