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Damping bridge bearing and preparation method thereof

A bridge support and water reducing agent technology, applied in bridges, bridge parts, bridge construction, etc., can solve the problems of weakening the shock absorption effect of the support and the flow of air bubbles in the anti-seismic ability, so as to achieve structural stability, improve the shock absorption capacity, and solve the problem of self-important effect

Active Publication Date: 2021-09-24
HOHAI UNIV
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Problems solved by technology

[0003] Purpose of the invention: The purpose of the present invention is to provide a shock-absorbing bridge bearing and its preparation method to solve the problem that the shock resistance of existing rubber bearings is easily affected by high temperature, causing air bubbles to flow and weakening the damping effect of the bearing

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  • Damping bridge bearing and preparation method thereof
  • Damping bridge bearing and preparation method thereof
  • Damping bridge bearing and preparation method thereof

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Embodiment Construction

[0018] The present invention will be further described below in conjunction with the accompanying drawings.

[0019] Such as Figure 1-3 As shown, the vibration-absorbing bridge bearing disclosed in the present invention includes seven functionally graded layers, which are in an integral cylindrical structure, and sequentially include a first foam concrete layer 1, a first steel plate layer 2, and a second foam concrete layer 3 from bottom to top. , the second steel plate layer 4, the third foam concrete layer 5, the third steel plate layer 6 and the fourth foam concrete layer 7, the diameter of the steel plate is 250mm ~ 400mm, the thickness is 2 ~ 4mm, the steel material is selected from Q235 steel plate, and the diameter of the foam concrete layer is 250-400mm, thickness 20-25mm, density controlled at 400-1000kg / m 3 , Raw materials The raw materials of foam concrete materials include Portland cement, perlite, ore powder, fly ash, water reducer, basalt fiber, foam and water...

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Abstract

The invention discloses a shock-absorbing bridge support and a preparation method thereof. The structure includes several foam concrete layers, and steel plate layers are arranged between each foam concrete layer. Portland cement, perlite, ore powder, powdered coal Put ash, water reducer, basalt fiber and water into the forced mixer and stir evenly; then pour the foam into the mixer and stir until it is stable, and finally pour the concrete slurry into the mold, and place a thin steel plate for each layer of foam concrete poured, After pouring, the formwork is removed for maintenance to obtain the shock-absorbing bridge bearing. The present invention selects suitable materials and proportions to design high-performance foam concrete, pours it with thin steel plates to prepare a new type of functionally gradient bridge bearing, which has the advantages of light weight, high strength, easy manufacture, and high energy absorption, and is effective It solves the problems of traditional bearings such as heavy weight, short service life, and weak shock resistance and shock absorption performance.

Description

technical field [0001] The invention relates to a bridge component and its preparation, in particular to a shock-absorbing bridge support and its preparation method. Background technique [0002] The construction of bridges and other important infrastructure projects is facing the threat of high-risk strong earthquake disasters. Once an earthquake occurs, it will cause huge losses to people's lives and property. It is necessary to improve the earthquake resistance of bridges. In the bridge structure, the support is an important part connecting the superstructure and the substructure, which requires that the support must meet sufficient bearing capacity to ensure the safe and reliable transmission of the force of the superstructure to the substructure. At present, the commonly used rubber bearings often have problems such as air bubbles and flow caused by the high temperature of the road surface, which weakens the shock absorption effect of the bearings and cannot guarantee t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B38/10C04B28/04E01D19/04E04B1/36E04B1/98E04H9/02C04B111/40
CPCC04B28/04C04B2111/40E01D19/04E04B1/36E04B1/98E04H9/021C04B18/12C04B18/08C04B14/18C04B14/4643C04B2103/302C04B38/106C04B38/0067
Inventor 张宁潘家琐张煜葛彬何乃福李亮亮
Owner HOHAI UNIV
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