Embedded speed-locked friction pendulum damping mounting support

A speed-locking, shock-absorbing support technology, applied to bridge parts, bridges, buildings, etc., can solve the problems of inability to perform full-displacement shock absorption, weak shock absorption, etc., to meet normal displacement needs, avoid impact, and avoid no damping The effect of shock or weak shock absorption

Active Publication Date: 2018-12-07
CHENGDU XINTU TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it has a shortcoming that height changes will occur in the process of normal compensation displacement. Even if the normal displacement and seismic displacement are separated by a certain structure so that there will be no height change under normal displacement, there will still be There is a section of displacement space in the lower bearing plate with no or weak shock absorption performance (that is, the normal displacement area), that is, under the earthquake state, it is necessary to complete the displacement action in the normal displacement area first, and then perform the earthquake displacement, and the full displacement cannot be performed. Displacement shock absorption

Method used

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  • Embedded speed-locked friction pendulum damping mounting support
  • Embedded speed-locked friction pendulum damping mounting support
  • Embedded speed-locked friction pendulum damping mounting support

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Such as Figures 1 to 7As shown, the embedded speed-locking friction pendulum shock-absorbing support includes an upper support plate 1, a spherical plate 2, a middle steel plate 3 and a lower support plate 4 from top to bottom. The upper support plate 1 is used to connect with the bridge body connection, the lower bearing plate 4 is used to connect with the pier, the upper end surface and the lower end surface of the spherical panel 2 are spherical, the upper end surface protrudes upwards, and the lower end surface protrudes downwards, the horizontal projection of the spherical panel 2 is circular, and the upper end surface The lower end surface of the bearing plate 1 matches the upper end surface of the spherical plate 2 and the radius of curvature of the two is the same, the lower end surface of the upper bearing plate 1 is sunken upwards, the upper end surface of the middle steel plate 3 matches the lower end surface of the spherical plate 2 and both The radius of c...

Embodiment 2

[0040] Such as Figures 2 to 7 As shown, on the basis of Embodiment 1, during initial installation, the top surface of the speed lock layer 8 is lower than the top surface of the groove wall 4-2, so that the deformation compensation area 4-3 is formed above the speed lock layer 8, and the deformation compensation The overflow area 4-3 surrounds the middle steel plate 3, and the deformation supplement overflow area 4-3 belongs to the installation groove 4-1; further, additional grooves 4-4 are provided on the groove wall 4-2, and the additional grooves 4-4 are located on the groove wall 4 The inner side of the top of -2 is connected with the installation groove 4-1, and the additional groove 4-4 expands the size of the deformation filling area 4-3 in the horizontal direction, and the additional groove 4-4 is along the inner edge of the top of the groove wall 4-2 Setting; when there is a normal displacement between the middle steel plate 3 and the lower support plate 4, the midd...

Embodiment 3

[0042] On the basis of Embodiment 2, there are through holes (not shown in the figure) along the bridge and through holes (not shown in the figure) in the middle steel plate 3, both of which are horizontal. The bridge to the through hole is used to communicate with the installation groove 4-1 area on the front and rear sides of the middle steel plate 3, and the transverse bridge to the through hole is used to connect to the installation groove 4-1 area on the left and right sides of the middle steel plate 3; when the middle steel plate 3 and the lower support plate When there is a normal displacement between 4, the middle steel plate 3 slowly squeezes the lock layer 8, and the shear-thickening material therein deforms slowly, and the through-holes along the bridge and the through-holes towards the cross-bridge can further effectively provide the shear-thickening material The deformation provides a place to go, and the shear thickening material can go from the extruded installat...

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PUM

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Abstract

The invention relates to the technical field of bridge installation, and discloses an embedded speed-locked friction pendulum damping mounting support includes an upper mount plate, ball panels, center plates and lower mounting plates, An upper end surface and a low end surface of that ball panel are spherical, the lower end surface of the upper support plate is match with the upper end surface ofthe ball panel, the upper end surface of the middle steel plate is matched with the lower end surface of the ball panel, a baffle plate is fixedly installed at the bottom of the upper support plate through shear bolt, the baffle plate horizontally encircles the middle steel plate, and the inner end of the baffle plate is in contact with the outer end surface of the middle steel plate for limitingpositions; An upper part of that low support plate is provided with a mounting groove for mount an intermediate steel plate, the bottom of the intermediate steel plate is in plane contact with the bottom of the mounting groove, a circumferential communication cavity is arranged between the outer end face of the intermediate steel plate and the wall of the mount groove, a speed locking layer is arranged, the speed locking layer is respectively in contact with the groove wall and the intermediate steel plate, and the speed locking layer is composed of a shear thickening material. Normal displacement, there will be no uplift phenomenon, the shock absorber bearing in the seismic state for full displacement damping.

Description

technical field [0001] The invention relates to the technical field of bridge installation, in particular to an embedded speed-locking friction pendulum damping support. Background technique [0002] Nowadays, there are many kinds of shock-absorbing bearings for bridges, such as high-damping rubber bearings for roads, lead-core rubber bearings, friction pendulum bearings for highways and railways, and E-shaped steel bearings, all of which have significant shock-absorbing effects. [0003] The shock absorption principle of the friction pendulum bearing consumes frictional energy through the conversion of kinetic potential energy. However, it has a shortcoming that height changes will occur in the process of normal compensation displacement. Even if the normal displacement and seismic displacement are separated by a certain structure so that there will be no height change under normal displacement, there will still be There is a section of displacement space in the lower bear...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D19/04
CPCE01D19/04E01D19/042Y02A30/30
Inventor 骆明成陈宏黄菲
Owner CHENGDU XINTU TECH
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