Roller type supporting leg, bridge swivel system and construction method

A roller-type, foot-supporting technology, which is applied in the direction of bridges, bridge construction, erection/assembly of bridges, etc., can solve the problem of not being able to control the static state of the roller trolley, and achieve the effect of reducing the probability of overturning

Active Publication Date: 2020-10-16
SHANDONG JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this design and construction method cannot control the roller trolley in the auxiliary support system to be in a static state before the bridge rotation process

Method used

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  • Roller type supporting leg, bridge swivel system and construction method
  • Roller type supporting leg, bridge swivel system and construction method
  • Roller type supporting leg, bridge swivel system and construction method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Such as Figure 1-Figure 5 As shown, this embodiment provides a roller-type stand, including a support shell, the lower part of which is connected to the rollers in rotation, the support shell is used to connect the lower end surface of the upper platform 3, and the rollers can move along the lower platform 5. The distance between the central axis of the roller and the upper end surface of the supporting shell can be adjusted.

[0038] It should be pointed out that in this embodiment, the roller-type support structures are used in pairs, that is, the attached figure 1 - attached Figure 5 Provided in is a schematic diagram of two roller support structures used together.

[0039] Described support shell comprises the first shell 19 that is fixed with upper platform 3, and the second shell 22 is arranged below the first shell 19, and the second shell 22 is connected with roller 25 rotation; The first shell 19 and A linear telescopic element is installed between the sec...

Embodiment 2

[0050] This embodiment provides a bridge swivel system. It can be understood that it should include the upper cap 3, the lower cap 5 and the swivel support 8 in the existing bridge swivel system. The upper surface of the lower cap 5 should be The traction cable 6 and the push jack 7 are set, and the cooperation of the traction cable and the push jack 7 is used to provide traction for the rotation of the bridge.

[0051] Specifically, the swivel system should also include the above-mentioned roller support feet 11, and a plurality of roller support feet 11 are arranged along the circumferential direction with the swivel support 8 as the center.

[0052] The upper end surface of the lower platform 5 surrounds the swivel support 8 with a limiting side plate 37, an annular slide groove 48 is formed on the inner wall of the limiting side plate 37, and a side surface with a vertical axis of rotation is installed on the side of the first housing. Guide wheel 35, side guide wheel 35 c...

Embodiment 3

[0060] This embodiment provides a bridge swivel method, utilizing the bridge swivel system described in Embodiment 2, comprising the following steps:

[0061] Step 1, complete the construction of the bridge swivel system.

[0062] Specifically, the construction of the bridge swivel system includes the following steps:

[0063] (a) Construction of the lower cap 5: According to the construction drawings, bind the steel bars of the lower cap 5, reserve the steel bars for the traction reaction seat 4, install the annular slideway 15, and the flatness should meet the specification requirements. The lower platform 5 adopts a vertical formwork, and concrete pouring and maintenance are carried out in two steps.

[0064] (b) Limiting side plate construction: After the construction of the upper cap 3 is completed, the limit side plate 37 is constructed on the outer edge of the upper cap 3, and the annular chute 48 is reserved before pouring the limit side plate, and the limit side plat...

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PUM

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Abstract

The invention relates to a rolling wheel type supporting leg and a bridge swivel system and method. The rolling wheel type supporting leg comprises a supporting shell, the lower portion of the supporting shell is rotationally connected with a rolling wheel, the supporting shell is used for being connected with the lower end face of an upper bearing platform, the rolling wheel can walk along the upper end face of a lower bearing platform, and the distance between the central axis of the rolling wheel and the upper end face of the supporting shell can be adjusted. According to the bridge swivelsystem, the roller type supporting leg is used for achieving the swivel process during bridge construction.

Description

technical field [0001] The disclosure belongs to the technical field of bridge engineering, and in particular relates to a roller support, a bridge swivel system and a construction method. Background technique [0002] Bridge swivel construction is a construction technique in which the bridge is formed sideways along the existing lines, rivers and obstacles, and then swiveled to the designed bridge position. At present, the number of long-span bridges is increasing, and the weight of the main girder is gradually increasing. Only relying on a single swivel support or swivel spherical hinge leads to problems such as excessive unbalanced moments, so that the entire girder's anti-overturning ability during the swivel process is greatly reduced. Poor, the rotation error is large, and there are potential safety hazards. Some bridge swivel systems have support foot structures, and the weight of the swivel superstructure is mainly borne by swivel balls or swivel arc supports. When...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D21/08
CPCE01D21/08
Inventor 崔凤坤裴元江薛洪运王保群
Owner SHANDONG JIAOTONG UNIV
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