Horizontal swing type shock insulation support with beam falling prevention function

A technology of seismic isolation bearing and anti-drop beam, which is applied to bridges, bridge parts, bridge materials, etc., can solve the problems of seismic isolation of the upper and lower structures of the building, unreasonable restrictions on multi-directional movable bearings, etc., and achieves low construction cost. , easy replacement and maintenance, energy reduction effect

Pending Publication Date: 2021-05-07
武汉桥之恒桥梁工程技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a horizontal pendulum type shock-isolation bearing with the function of anti-drop beams, so as to solve the problem that the existing bearings cannot achieve vibration-reduction and isolation of the upper and lower structures of the building and multi-directional movable bearings in the actual work process. The relative displacement range between the upper and lower parts of the support and the upper and lower structures of the bridge (or building) cannot be reasonably limited, etc.

Method used

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  • Horizontal swing type shock insulation support with beam falling prevention function
  • Horizontal swing type shock insulation support with beam falling prevention function
  • Horizontal swing type shock insulation support with beam falling prevention function

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Such as figure 1 , 2 The shown shock-absorbing support includes, from top to bottom, an upper slide plate 1, an upper support plate 2, a spherical crown liner 3 and a lower support plate 4; the lower surface of the upper support plate 2 is provided with The spherical crown liner 3 is a spherical concave surface matching the spherical crown surface; the lower support plate 4 is provided with a groove, and the spherical crown liner 3 and the upper support plate 2 are both located in the groove. The groove on the lower support plate 4 is circular.

[0028] There are sliding friction pairs between the upper sliding plate 1 and the upper bearing plate 2, between the upper bearing plate 2 and the spherical crown lining plate 3, between the spherical crown lining plate 3 and the lower bearing plate 4, and No silicone grease lubrication. The above-mentioned sliding friction pair is as follows:

[0029] The lower surface of the upper sliding plate 1 is provided with a stainl...

Embodiment 2

[0036] Such as image 3 , 4 Compared with the shock-absorbing support in Embodiment 1, the shown shock-absorbing support adds a lower sliding plate 6, and the lower sliding plate 6 is located below the lower supporting plate 4; the upper surface of the lower sliding plate 6 A stainless steel plate is provided, and a wear-resistant plate is provided on the lower surface of the lower support plate 4, and the wear-resistant plate and the stainless steel plate form a sliding friction pair.

[0037] The upper surface of the lower sliding plate 6 is provided with a rail groove 61, and the lower surface of the lower support plate 4 is provided with a sliding rail 41, and the sliding rail 41 and the rail groove 61 are slidably matched to form a sliding rail mechanism. A sliding friction pair formed by a wear-resistant plate and a stainless steel plate is also provided between the side walls of the groove 61 . The sliding guide rail 41 is arranged along the vertical bridge direction ...

Embodiment 3

[0040] Such as Figure 5 , 6 In the shown shock-isolation bearing, the shear pin 5 is omitted on the basis of the first embodiment.

[0041] When the bearing is displaced within the design value, since the upper bearing plate 2 and the upper sliding plate 1 can rotate and swing, the bearing is equivalent to the ordinary multi-directional bearing; when the bearing is impacted by earthquakes, etc., The circular tenon 21 is limited by the circular sinking groove 11, and the relative displacement of the upper sliding plate 1 and the lower bearing plate 4 cannot exceed the radius of rotation of the bearing, which prevents the excessive displacement of the upper and lower structures of the bridge (or building) from causing permanent damage. damage, the bearing is equivalent to the limit type multi-directional bearing at this time.

[0042] Such as Figure 7 As shown, the layout of the seismic isolation bearing of the present invention applied in the bridge, the upper left is the se...

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Abstract

The invention relates to a horizontal swing type shock insulation support with a beam falling prevention function, which comprises an upper sliding plate, an upper support plate, a spherical crown lining plate and a lower support plate which are sequentially arranged from top to bottom, and sliding friction pairs are arranged between the upper sliding plate and the upper support plate, between the upper support plate and the spherical crown lining plate and between the spherical crown lining plate and the lower support plate; a circular sinking groove is formed in the lower surface of the upper sliding plate, a circular clamping tenon in clearance fit with the circular sinking groove is arranged on the upper surface of the upper support plate, and the circular sinking groove and the circular clamping tenon are eccentrically arranged. The problems that in the actual working process of an existing support, shock absorption and isolation of upper and lower structures of a building cannot be achieved, and a multi-direction movable support cannot reasonably limit the relative displacement range between the upper and lower portions of the support and between the upper and lower structures of a bridge (or the building) and the like are solved.

Description

technical field [0001] The invention belongs to the technical field of shock absorption and isolation for buildings and bridges, in particular to a flat-swing type shock-isolation support with the function of anti-drop beams. Background technique [0002] The support is an important part connecting the bridge, the upper structure and the lower structure of the building. It can transmit the reaction force and deformation (displacement and rotation angle) of the upper structure to the lower structure, so that the stress of the structure is consistent with the theoretical calculation diagram . First of all, the support must have sufficient bearing capacity to ensure the safe and reliable transmission of the support reaction force (vertical force and horizontal force). Secondly, the constraints of the support on the structure (displacement and rotation angle) should be as small as possible to meet the needs of free expansion and rotation of the beam body. In addition, the brid...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D19/04E01D101/30
CPCE01D19/04E01D19/046E01D2101/30
Inventor 李永鼎李高升白自恒师艳武
Owner 武汉桥之恒桥梁工程技术有限公司
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