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Chain type seamless bridge expansion device

A technology of telescopic devices and seamless bridges, which is applied in bridges, bridge parts, bridge construction, etc., can solve the problems of insufficient ability to adapt to compound displacement, increase the supporting parts of telescopic devices, and fill the telescopic space, so as to reduce the inflow of rainwater into telescopic joints, reduce the bearing load, and avoid vibration damage

Active Publication Date: 2015-10-21
吴树超
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, by adding passive vibration-absorbing measures such as shock-absorbing bearings, it is only "to treat the head with a headache, and to treat the foot with a pain in the foot", and it can only increase the supporting parts of the telescopic device in disguise (such as the middle beam and beam of the modulus joint, the span of the comb-tooth joint, etc.) seam plate) deflection, causing greater vibration
Horizontal wedge expansion joint (patent No. 201010201643.4), large in shape, high in cost, and lack of ability to adapt to compound displacement
There is no other solution mentioned in the industry, and there is no solution to fill the expansion and contraction space through the chain

Method used

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  • Chain type seamless bridge expansion device
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  • Chain type seamless bridge expansion device

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Experimental program
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Effect test

Embodiment Construction

[0025] The way in which the chains are supported by the grooves on the side of the half-beam of the intersupporting bridge expansion device to fill the expansion and contraction space is a preferred embodiment of the present invention. Here, the chain filling the expansion and contraction space of the intersupporting bridge expansion device is taken as an example for illustration.

[0026] figure 1 It is a schematic diagram of the appearance of the bridge deck of the present invention. It can be seen from the figure that the half-beams are installed along the direction of the bridge, and the half-beams on both sides of the expansion joint are interlaced. The expansion space between adjacent half-beams 1 on the same side of the expansion joint is filled by multiple chain links of the chain 2 .

[0027] figure 2 It is a side view of the present invention after removing one half beam and chain. From the side of the bridge expansion device, it can be seen that the chain 2 is ...

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Abstract

An extension apparatus of a seamless bridge comprises a half-beam (1) and a chain (2). A remote beam end of the chain (2) is connected to a remote beam end of the opposite half-beam (1). The chain (2) is supported by means of a groove on a side surface of an adjacent half-beam (1), and is bent and extended when a bridge is bent and extended. An upper surface of the chain (2) is approximately parallel and level to a surface of the bridge. The extension apparatus of the seamless bridge can fill a pit between half-beams as the bridge is bent and extended, and reduce vibration of a vehicle.

Description

technical field [0001] The invention relates to a large-displacement bridge expansion device capable of improving the smoothness of the bridge surface. The expansion device has extremely small gaps, stable driving, no vibration and no noise. Background technique [0002] The modular bridge expansion device dominates by "changing large gaps into small gaps", and the comb-tooth bridge expansion device has unlimited scenery through "transverse gaps into vertical gaps". There is no best, only better. "Small seams" can only meet the basic requirements, and "seamless" is the highest state. Although there are seamless expansion devices made of modified asphalt and elastomers in the industry, they are only suitable for small displacement bridges. [0003] For the convenience of description, four concepts are introduced: telescopic space refers to the space (pit) reserved for the closure of bridge telescopic devices, such as the gap between the middle beam and the middle beam in th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01D19/06
CPCE01D19/06
Inventor 吴树超
Owner 吴树超
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