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Elastic-plastic structure damping support

A structural damping and elastoplastic technology, applied to bridge parts, bridge materials, bridges, etc., can solve the problems of fatigue, energy consumption and poor limit effect, and achieve the effect of maintaining stability, convenient maintenance and post-earthquake replacement

Active Publication Date: 2019-10-08
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The patent has a simple structure, poor energy consumption and position limiting effect, and has problems such as fatigue

Method used

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  • Elastic-plastic structure damping support
  • Elastic-plastic structure damping support
  • Elastic-plastic structure damping support

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] A one-way movable elastic-plastic mild steel structure damping support, its structure see Figure 1 to Figure 7 shown, including:

[0059] Supporting module: including the upper top plate 1, spherical cap 5, middle liner 6 and lower bottom plate 9 stacked from top to bottom, wherein, between the upper top plate 1 and the spherical cap 5, between the lower bottom plate 9 and the middle liner 6 Sliding surfaces that move relatively along the bridge direction and the transverse bridge direction are respectively processed, and the spherical cap 5 and the intermediate liner 6 are connected through spherical contact;

[0060] Damping module: including energy-limiting components arranged along the direction of the bridge and along the direction of the bridge, wherein the two ends of the energy-limiting components arranged along the direction of the bridge are respectively connected to the top plate 1 and the spherical cap 5, and along the direction of the bridge The two ends ...

Embodiment 2

[0070] A fixed elastic-plastic structure damping support, its structure see Figure 12-Figure 16 As shown, the difference from Embodiment 1 is that along the direction of the bridge, the upper top plate 1 of the support is replaced by the fourth lug 10 connected by high-strength bolts 23 to the fourth ear plate 20, and the upper limit ring 11 is removed. The two end sides of the limiting ring 11 are fixedly connected with the fourth ear plate 20 and the first ear plate 14 respectively. Simultaneously, pin holes 7 are set up on the forward slideway 15 on the upper top plate 1 and the guide block 3 on the spherical cap 5, and the limited capacity shearing pins 8 are placed in the pin holes 7.

Embodiment 3

[0072] Two-way active elastic-plastic mild steel structure damping bearing, its structure see Figure 17-Figure 20 As shown, the difference from the first embodiment is that along the direction of the bridge, the second lug plate 17 connected by the lower bottom plate of the support 9 through high-strength bolts 23 is replaced by the second limit chute 22, and the middle liner 6 is connected by high-strength bolts 23 The third ear plate 18 is connected, and one end side of the limit ring 11 is provided with a transverse tie rod 21, and the transverse tie rod 21 is snapped into the second limit chute 22 connected with the lower bottom plate, and can slide freely. The other end of 11 is connected to the lug 18 of the intermediate lining. At the same time, remove the pin hole 7 and the limited capacity shear pin 8 on the transverse slideway 16 of the base plate 9 and on the guide block 3 at the bottom of the intermediate liner 6 .

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Abstract

The invention relates to an elastic-plastic structure damping support which comprises a supporting module and a damping module. The supporting module comprises an upper top plate, a spherical crown, amiddle lining plate and a lower bottom plate which are arranged in an overlapped manner from top to bottom, wherein sliding faces capable of moving relatively in the longitudinal direction of a bridge and the transverse direction of the bridge are machined between the upper top plate and the spherical crown and between the lower bottom plate and the middle lining plate correspondingly, and the spherical crown and the middle lining plate are in contact connection through a spherical face. The damping module comprises limiting energy consumption assemblies which are arranged in the longitudinaldirection of the bridge and the transverse direction of the bridge correspondingly, wherein the two ends of the limiting energy consumption assembly arranged in the longitudinal direction of the bridge are connected with the upper top plate and the spherical crown correspondingly, and the two ends of the limiting energy consumption assembly arranged in the transverse direction of the bridge are connected with the lower bottom plate and the middle lining plate correspondingly. Compared with the prior art, the elastic-plastic structure clamping support can adapt to telescopic deformation of a main beam under the temperature effect, circular ring parts have an energy consumption effect and a limiting effect, the problems of oil leakage, blockage and the like do not exist, demounting and mounting can be conducted according to practical needs, and daily support maintenance and post-earthquake replacement are facilitated.

Description

technical field [0001] The invention relates to a shock-absorbing and isolating bridge support, in particular to an elastic-plastic structural damping support. Background technique [0002] The key to seismic isolation design is how to control the relative displacement of components without significantly increasing the seismic force. Cable bearings have problems such as no energy consumption of the cables and unsatisfactory displacement control effect during the deformation movement of the bearing. When elastic-plastic steel damping bearings are used in bridge structures, they cannot meet the requirements that the beam body expands and contracts freely due to temperature without stress. There are mainly two existing solutions, one is to use the elastic and plastic deformation of the metal to "hardly resist" the force generated by the temperature load in the beam body; the other is a series speed locking device to adapt to the thermal expansion and contraction of the beam bo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D19/04E01D101/30E01D101/40
CPCE01D19/04E01D19/046E01D2101/30E01D2101/40
Inventor 王君杰高昊
Owner TONGJI UNIV
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