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Bridge expansion joint with multidirectional displacement function

A multi-directional displacement and expansion device technology, applied in bridges, bridge parts, bridge construction, etc., can solve problems such as damage, structural and performance defects, and achieve the effect of eliminating warped teeth

Inactive Publication Date: 2012-11-07
武汉众道工程技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This type of expansion device has a long application history and many engineering examples, but due to its structural and performance defects, many serious damages have occurred in domestic and foreign projects that have been used, and have led to major traffic accidents

Method used

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  • Bridge expansion joint with multidirectional displacement function
  • Bridge expansion joint with multidirectional displacement function
  • Bridge expansion joint with multidirectional displacement function

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0028] Now further illustrate how the present invention is implemented in conjunction with accompanying drawings:

[0029] This device is set for the gap C between two adjacent beams A and B of the bridge, and the embedded steel plates Da and Db are respectively arranged at the end of the gap C between the two adjacent beams A and B,

[0030] The device consists of a mounting base, a water stop, a movable telescopic comb connection unit, and a fixed comb connection unit. The installation base 1 is composed of a base 1-1 and a rotating shaft support 1-2 welded (such as image 3 As shown), the installation base 1 is directly welded on the embedded steel plate Da, and the fixed comb connection unit 5 is composed of a low-friction shock-absorbing bottom plate 5-1, a fixed comb body 5-2, and a baffle 5-3. The plate 5-3 is fixedly connected to one end of the low-friction shock-absorbing bottom plate 5-1, and the fixed comb body 5-2 is installed on the low-friction shock-absorbing bo...

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Abstract

The invention belongs to the technical field of a bridge attachment, in particular to a bridge expansion joint with multidirectional displacement function, wherein a fixed comb jointing unit and a movable expansion comb jointing unit are unit modules, horizontal mutual-insert ratcheting connection pairs are formed at the clearance end of two adjacent beam bodies, a fixed comb body is arranged in a T-shaped way, a movable comb body is arranged in a reversed-T-shaped way, not only can the horizontal displacement requirement for a longitudinal bridge direction be satisfied, but also through a related flexible connection, the rotation of the movable expansion comb jointing unit relative to a rotating bearer of a mounting seat, the transverse bridge direction sliding in a sliding groove, and the rotation relative to a connecting shaft are satisfied, therefore the outstanding features of the requirements for the longitudinal direction, transverse direction, twisting, vertical turning and seismic displacement of the bridge, the concrete pouring is not required, the requirement for the rabbet depth is reduced, the installation is rapid and convenient, the installation engineering jobs are fully optimized, and the construction efficiency and the safety are improved.

Description

technical field [0001] The invention relates to a bridge telescopic device with multidirectional displacement function, which belongs to the field of bridge accessory devices, and is particularly related to suspension bridges and cable-stayed bridges. Background technique [0002] With the development of the economy, people have higher and higher requirements for the comfort, safety and reliability of driving. The bridge telescopic device has been highly valued as the main accessory component of the driving safety performance in the bridge structure. Its main function is to meet the needs of bridge longitudinal, horizontal, vertical displacement and seismic incremental displacement caused by temperature difference, wind force, vehicle and other conditions, and make the vehicle pass through the expansion joint area at the beam end smoothly. [0003] The most representative telescopic device development so far is: the cantilever comb device popular in Europe and the United St...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D19/06
Inventor 盛朝晖罗永圳
Owner 武汉众道工程技术有限公司
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