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Large-deformation rubber support with combined cross section capable of reducing shear stiffness

A technology of rubber bearing and composite section, which is applied in bridge engineering and earthquake resistance fields, can solve problems such as environmental pollution, and achieve the effects of convenient use, prolonging structure period and low cost.

Active Publication Date: 2019-04-16
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, lead is a poisonous substance to the human body, and it is easy to cause pollution to the environment during the process of manufacture, use, and maintenance. The disposal of waste lead cores after the replacement of the support is also an environmental problem that cannot be underestimated.

Method used

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  • Large-deformation rubber support with combined cross section capable of reducing shear stiffness
  • Large-deformation rubber support with combined cross section capable of reducing shear stiffness
  • Large-deformation rubber support with combined cross section capable of reducing shear stiffness

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Embodiment Construction

[0025] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0026] see Figure 1 ~ Figure 4 According to the present invention, a large-deformation rubber bearing with reduced shear stiffness due to a combination section includes an upper top plate 10, a lower top plate 20, and a plate-type rubber bearing 30 disposed between them. The plate rubber bearing 30 can be formed by inlaying, bonding and vulcanizing multiple layers of natural rubber and steel plates. The interior of the plate rubber bearing 30 is hollowed out, that is, the inner hollow of the plate rubber bearing 40 is provided with a multi-layer sliding rubber bearing 40 at the hollowed out part of the plate rubber bearing 30, that is, the multi-layer sliding rubber bearing 40 is placed in the hollow In the plate rubber bearing 30. The shape of...

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PUM

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Abstract

The invention discloses a large-deformation rubber support with a combined cross section capable of reducing shear stiffness. The large-deformation rubber support comprises an upper jacking plate, a lower jacking plate and a plate rubber support arranged between the upper jacking plate and the lower jacking plate, wherein the inner portion of the plate rubber support is hollowed out, the hollowed-out portion is provided with a multi-layer sliding rubber support, the shape of the multi-layer sliding rubber support is adapted to the shape of the hollowed-out portion, and the multi-layer slidingrubber support comprises a sliding plate, a rubber sheet and a thin steel plate which are laminated. The large-deformation rubber support with the combined cross section capable of reducing the shearstiffness has the advantages that the combined cross section is formed by placing the multi-layer sliding rubber support on the hollowed-out plate rubber support, so that the support has a multi-layersliding ability and slides as much as possible under the condition that unstability does not occur, and the rigidity of the support can be controlled by adjusting the area proportion of the multi-layer sliding support and reserved plate rubber support and adjusting the sliding surface layer number of the multi-layer sliding support.

Description

technical field [0001] The invention relates to bridge engineering and anti-seismic fields, in particular to a plate type rubber bearing capable of multi-layer constrained sliding in earthquakes, which can reduce stiffness and increase deformation and energy dissipation capacity, and in particular to a composite section Large deflection rubber bearings for reduced shear stiffness. Background technique [0002] With the development of my country's economy and technology, the demand for seismic resistance of bridges is getting higher and higher. Although ordinary plate rubber bearings are simple in structure and easy to manufacture and install, their shear stiffness is too large, and their horizontal deformation capacity and energy dissipation capacity are too low. Although the sliding plate bearing can have a large horizontal displacement, its horizontal stiffness is too low, which is easy to cause instability, so it needs to be used with a fixed bearing, and the fixed pier mu...

Claims

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Application Information

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IPC IPC(8): E01D19/04
CPCE01D19/041
Inventor 袁万城钟海强党新志
Owner TONGJI UNIV
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