CN210561688U - Shock absorption and isolation device for high-speed rail bridge support - Google Patents
Shock absorption and isolation device for high-speed rail bridge support Download PDFInfo
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- CN210561688U CN210561688U CN201920657361.1U CN201920657361U CN210561688U CN 210561688 U CN210561688 U CN 210561688U CN 201920657361 U CN201920657361 U CN 201920657361U CN 210561688 U CN210561688 U CN 210561688U
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- 238000002955 isolation Methods 0.000 title claims abstract description 17
- 230000035939 shock Effects 0.000 title abstract description 14
- 238000010521 absorption reaction Methods 0.000 title abstract description 8
- 230000003139 buffering effect Effects 0.000 claims abstract description 113
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 64
- 239000010959 steel Substances 0.000 claims abstract description 64
- 230000007704 transition Effects 0.000 claims description 7
- 230000003014 reinforcing effect Effects 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 14
- 238000000034 method Methods 0.000 description 11
- 238000013016 damping Methods 0.000 description 10
- 244000208734 Pisonia aculeata Species 0.000 description 7
- 238000006073 displacement reaction Methods 0.000 description 4
- 238000001125 extrusion Methods 0.000 description 4
- 230000002787 reinforcement Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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Abstract
The utility model discloses a high-speed rail bridge support shock absorption and isolation device, which relates to the field of high-speed rail bridges and aims to provide a high-speed rail bridge shock absorption device, its technical essential includes steel sheet and lower steel sheet, still including setting up a plurality of foundation columns at last steel sheet lower surface, the setting is at vertical decurrent buffering semicircle ball one of foundation column bottom cambered surface, it is relative and the equal diameter buffering semicircle ball two to slide the setting at lower steel sheet upper surface, still including setting up the piece of slowing back that is used for pulling back initial position buffering semicircle ball two on the steel sheet down, the setting is at the basic cavity seat of steel sheet upper surface end wall department down, the setting is at the base that slides in basic cavity seat of last steel sheet lower surface end wall department, the setting is used for restoring the rebound spring of initial condition and setting the buffering auxiliary member in the basic cavity seat with last steel sheet between basic cavity seat diapire and base bottom, the mesh that has effectively improved high-speed railway bridge anti-seismic performance has been reached.
Description
Technical Field
The utility model relates to a high-speed railway bridge field, more specifically say, it relates to a high-speed railway bridge support subtracts isolation device.
Background
With the development of railway technology and the convenience of people's life, nowadays, railways are often built in rivers, valleys, highways or places crossing with another railway, and in order to make the railways cross the obstacles on the terrains, various railway bridges need to be built, and meanwhile, in order to ensure the use safety of high-speed railway bridges, damping devices must be additionally arranged on the bridges to reduce the influence of vibration force generated in the running process of vehicles on the bridges.
Thus. The utility model provides a damping device can effectively improve the anti-seismic performance of high-speed railway bridge.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, the utility model aims to provide a high-speed railway bridge support subtracts isolation device can effectively improve the anti-seismic performance of high-speed railway bridge.
In order to achieve the above purpose, the utility model provides a following technical scheme:
a shock absorption and isolation device for a high-speed rail bridge support comprises an upper steel plate, a lower steel plate, a plurality of base columns arranged on the lower surface of the upper steel plate, a first buffering semi-sphere arranged at the bottom end of each base column in a vertically downward mode, a second buffering semi-sphere which is arranged on the upper surface of the lower steel plate in a sliding mode, is opposite to the first buffering semi-sphere and has the same diameter as the first buffering semi-sphere, the cambered surface of the second buffering semi-sphere is arranged vertically upwards, the cambered surface of the second buffering semi-sphere at the initial position is opposite to the cambered surface of the first buffering semi-sphere, the shock absorption and isolation device further comprises a back-buffering piece arranged on the lower steel plate and used for pulling the second buffering semi-sphere back to the initial position, a base cavity seat arranged at the end wall of the upper surface of the lower steel plate, a base arranged at the end wall of the lower surface of the upper steel plate and sliding in the base cavity seat, a rebound, the moving distance of the base is not less than the moving distance of the first buffering semicircle.
By adopting the technical scheme, when the upper steel plate is subjected to external force, the base column drives the first buffer semi-sphere to move downwards, when the first buffer semi-sphere is contacted with the second buffer semi-sphere, the cambered surfaces of the first buffer semi-sphere and the second buffer semi-sphere are relatively extruded, the second buffer semi-sphere slides on the lower steel plate along with the downward movement of the first buffer semi-sphere to provide a downward moving space for the first buffer semi-sphere, the cambered surfaces of the first buffer semi-sphere and the second buffer semi-sphere are relatively rubbed and extruded, vertical force transmitted by the upper steel plate is dispersed to other directions, a buffering effect can be achieved on the downward movement of the upper steel plate, meanwhile, the base can also move in the base cavity seat in the process, a guiding effect can be achieved, the rebound spring is compressed and also plays a buffering effect, when the external force disappears, the rebound spring can reset to push the upper steel plate back to the original position, and simultaneously, the first buffer semi-sphere and the second buffer semi-sphere are relatively separated, the back cushion will cushion two half-round balls and pull back the normal position, and then play absorbing effect, simultaneously, the buffering auxiliary member slides the in-process at the base, can strengthen damping device's shock attenuation effect, and then the utility model discloses can effectively improve the anti-seismic performance of high-speed railway bridge, cushion two grade diameters setting of half-round ball one and buffering half-round ball simultaneously, make the atress homogeneity of buffering half-round ball one and buffering two half-round ball, avoid buffering half-round ball one and buffering two half-round ball to take place to damage, simultaneously, the displacement of base is not less than the displacement of buffering half-round ball one, when avoiding the base to remove the bottom of base chamber seat, buffering half-round ball one and buffering two half-round ball still do not contact, can't play absorbing effect.
The utility model provides a further set up to, return and delay the piece including setting up the short slot that slides of steel sheet upper surface under, setting up at two bottoms of buffering semicircle ball and at the slider that slides in the short slot that slides and set up the pullback spring between short slot length direction end wall and the slider that slides.
Through taking above-mentioned technical scheme, buffering hemisphere two drives to slide and slides at the short slot that slides under the pressure of buffering hemisphere one, and the pull-back spring can take place deformation this moment, when buffering hemisphere one withdraws the pressure to buffering hemisphere two gradually, under the restoring force effect of pull-back spring, can stimulate buffering hemisphere two and slider and get back to the home position.
The utility model provides a further set up to, buffering auxiliary member is including setting up a plurality of horizontal arc grooves of arranging along vertical direction on base chamber seat inside wall and setting up a plurality of gliding elasticity arc strips between horizontal arc groove of arranging along vertical direction in base perisporium bottom.
Through adopting above-mentioned technical scheme, when the base slided along vertical direction in the base chamber seat, the elasticity arc strip slided on horizontal arc groove, and when every process two adjacent horizontal arc grooves, the elasticity arc strip all can experience by the extrusion and resume the in-process of original shape, and then when increasing the frictional force between base and the base chamber seat, is the elasticity transition between elasticity arc strip and the horizontal arc groove, and then can play the cushioning effect.
The utility model provides a further set up as, be provided with the bearing arc groove that is used for accepting buffering semicircle ball one down on steel sheet and the relative wall of buffering semicircle ball one.
Through adopting above-mentioned technical scheme, buffering semicircle ball one when reaching the biggest buffer distance, the cambered surface of buffering semicircle ball one sinks in the bearing arc inslot, not only can reduce the pressure that receives in buffering semicircle ball cambered surface bottom, avoids buffering semicircle ball one to take place to damage, can increase the buffer distance of buffering semicircle ball one moreover, increases damping device's shock attenuation effect.
The utility model provides a further set up to, be provided with the elastic buffer pad on the cambered surface of buffering semicircle ball one.
Through adopting above-mentioned technical scheme, not only can reduce buffering semicircle ball one and buffering semicircle ball two and buffering semicircle ball one and the bearing arc groove between the impact force, protection buffering semicircle ball one and buffering semicircle ball two, elastic cushion's elastic deformation moreover also can increase damping device's shock attenuation effect.
The utility model provides a further set up as, initial position the centre of sphere position of buffering semicircle ball two is along the skew buffering semicircle ball one centre of sphere position of the slip direction of buffering semicircle ball two, initial position the distance between the centre of sphere of buffering semicircle ball two and the buffering semicircle ball one centre of sphere is 0.1-0.15 times of buffering semicircle ball one diameter.
Through adopting above-mentioned technical scheme, when can avoid buffering hemisphere one and buffering hemisphere two to take place the relative extrusion, can not take place timely relative displacement between buffering hemisphere one and the buffering hemisphere two, buffering hemisphere two can not take place to remove, and then buffering hemisphere one and buffering hemisphere two lose the buffering effect, simultaneously, the distance between the centre of sphere of initial position's buffering hemisphere two and the centre of sphere of buffering hemisphere is 0.1-0.15 times of buffering hemisphere one diameter, not only can make and buffer and take place relative displacement between hemisphere one and the buffering hemisphere two, can avoid the sliding distance of buffering hemisphere two too short moreover, reduce the shock attenuation effect.
The utility model provides a further set up to, adjacent be provided with the transition fillet between the horizontal arc groove.
Through adopting above-mentioned technical scheme, avoid the elasticity arc strip when having a horizontal arc groove to pass through to another horizontal arc groove, the elasticity arc strip is blocked by the edge between two horizontal arc grooves, influences the removal of base in the base chamber seat.
The utility model provides a further set up to, the one end that buffering semicircle ball one was kept away from to the foundation column is provided with inlays the trapezoidal reinforcement piece of establishing in last steel sheet, the vertical downward setting of narrow end of trapezoidal reinforcement piece.
By adopting the technical scheme, the connection strength and the impact strength of the joint of the foundation column and the upper steel plate can be enhanced, and the damage to the foundation and the upper steel plate caused by the fact that the pressure intensity of the joint of the foundation column and the upper steel plate is large when the upper steel plate is subjected to external force is avoided.
To sum up, the utility model discloses following beneficial effect has:
1. in the utility model, when the upper steel plate is subjected to external force, the base column is utilized to drive the first buffer semi-sphere to move downwards, when the first buffer semi-sphere is contacted with the second buffer semi-sphere, the cambered surfaces of the first buffer semi-sphere and the second buffer semi-sphere are relatively extruded, and along with the downward movement of the first buffer semi-sphere, the second buffer semi-sphere slides on the lower steel plate to provide a downward moving space for the first buffer semi-sphere, the cambered surfaces of the first buffer semi-sphere and the second buffer semi-sphere are relatively rubbed and extruded, so that the vertical force transmitted by the upper steel plate is dispersed to other directions, and the downward movement of the upper steel plate can be buffered;
2. in the utility model, the base is moved in the base cavity seat to play a guiding role, the rebound spring is compressed to play a damping role, when the external force disappears, the rebound spring resets to push the upper steel plate back to the original position, and simultaneously, along with the relative separation of the first buffer semi-sphere and the second buffer semi-sphere, the second buffer semi-sphere is pulled back to the original position by the buffer part to play a damping role, meanwhile, the elastic arc strip slides on the horizontal arc groove, when passing through two adjacent horizontal arc grooves, the elastic arc strip is extruded and restores the original shape, so that when the friction force between the base and the base cavity seat is increased, the elastic transition is formed between the elastic arc strip and the horizontal arc groove, the auxiliary damping role can be played, the anti-seismic performance of a high-speed railway bridge is improved, the diameter setting of the first buffer semi-sphere and the second buffer semi-sphere is simultaneously, the stress uniformity of the first buffer semi-sphere and the second buffer semi-sphere is realized, the first buffer semi-sphere and the second buffer semi-sphere are prevented from being damaged.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a sectional view of a structure of a middle buffering auxiliary member according to the present invention.
Fig. 3 is a cross-sectional view of a buffer structure of the present invention.
Reference numerals: 1. steel plate feeding; 2. a lower steel plate; 3. a base pillar; 4. buffering the semicircle balls I; 5. a second buffer semi-sphere; 6. a back buffer piece; 7. a base cavity seat; 8. a base; 9. a rebound spring; 10. a buffering aid; 11. a short sliding groove; 12. a slider; 13. a pullback spring; 14. a horizontal arc groove; 15. an elastic arc strip; 16. supporting the arc groove; 17. an elastic cushion pad; 18. transition fillets; 19. trapezoidal reinforcing blocks.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Example (b):
the utility model discloses a shock absorption and isolation device for a high-speed rail bridge support, as shown in figure 1 and figure 3, the shock absorption and isolation device comprises an upper steel plate 1 and a lower steel plate 2, and further comprises a plurality of base columns 3 arranged on the lower surface of the upper steel plate 1, a first buffering semi-sphere 4 vertically downwards arranged on the bottom cambered surface of the base column 3, a second buffering semi-sphere 5 which is arranged on the upper surface of the lower steel plate 2 in a sliding manner, is opposite to the first buffering semi-sphere 4 and has the same diameter, the cambered surface of the second buffering semi-sphere 5 is vertically upwards arranged, the cambered surface of the second buffering semi-sphere 5 at the initial position is opposite to the first buffering semi-sphere 4, one end of the base column 3, which is far away from the first buffering semi-sphere 4, is provided with a trapezoidal reinforcing block 19 embedded in the; can receive external force at last steel sheet 1 in, base column 3 drives buffering hemisphere one 4 and moves down, the cambered surface relative extrusion of buffering hemisphere one 4 and two 5 buffering hemispheres, along with buffering hemisphere one 4 moves down, buffering board hemisphere two slides on steel sheet 2 down, for buffering hemisphere one 4 provides the space that moves down, the cambered surface relative friction and the extrusion of buffering hemisphere one 4 and two 5 buffering hemispheres, will be dispersed to other directions by the vertical power that last steel sheet 1 transmitted comes, can move down to last steel sheet 1 and play the cushioning effect.
As shown in fig. 1 and fig. 2, the utility model further comprises a buffer 6 arranged on the lower steel plate 2 for pulling back the buffer hemispheric ball two 5 to the initial position, a base cavity seat 7 arranged on the end wall of the upper surface of the lower steel plate 2, a base 8 arranged on the end wall of the lower surface of the upper steel plate 1 and sliding in the base cavity seat 7, a rebound spring 9 arranged between the bottom wall of the base cavity seat 7 and the bottom end of the base 8 for restoring the upper steel plate 1 to the initial state, and a buffer auxiliary 10 arranged in the base cavity seat 7, wherein the moving distance of the base 8 is not less than the moving distance of the buffer hemispheric ball one 4; at the relative extruded in-process of cambered surface of buffering semicircle ball one 4 and buffering semicircle ball two 5, base 8 removes in basic cavity seat 7, and springback spring 9 is compressed, and after external force disappeared, springback spring 9 resets and can push back the normal position with last steel sheet 1, and simultaneously, along with buffering semicircle ball one 4 and two 5 relative departures of buffering semicircle ball, back buffer 6 will cushion semicircle ball two 5 and pull back the normal position, and simultaneously, buffering auxiliary member 10 slides the in-process at base 8, can strengthen damping device's shock attenuation effect, and then the utility model discloses can effectively improve the anti-seismic performance of high-speed railway bridge.
As shown in fig. 1 and 2, the buffering auxiliary member 10 includes a plurality of horizontal arc grooves 14 arranged on the inner side wall of the base cavity seat 7 in the vertical direction, and a plurality of elastic arc strips 15 arranged at the bottom end of the peripheral wall of the base 8 in the vertical direction and sliding between the horizontal arc grooves 14, wherein transition fillets 18 are arranged between adjacent horizontal arc grooves 14; the base 8 is at the in-process that vertical direction slided in base chamber seat 7, and elasticity arc 15 slides on horizontal arc groove 14, when increasing the frictional force between base 8 and the base chamber seat 7, is the elasticity transition between elasticity arc 15 and the horizontal arc groove 14, and then can play the cushioning effect.
As shown in fig. 1 and 3, a bearing arc groove 16 for receiving the first buffer semispherical ball 4 is arranged on a wall surface of the lower steel plate 2 opposite to the first buffer semispherical ball 4, an elastic buffer pad 17 is arranged on an arc surface of the first buffer semispherical ball 4, when the first buffer semispherical ball 4 reaches a maximum buffer distance, the arc surface of the first buffer semispherical ball 4 sinks into the bearing arc groove 16, so that the first buffer semispherical ball 4 is protected, and meanwhile, the elastic buffer pad 17 also prevents the first buffer semispherical ball 4 and the second buffer semispherical ball 5 from being damaged by an excessive impact force two;
as shown in fig. 1 and 3, the center position of the second buffer hemisphere 5 at the initial position deviates from the center position of the first buffer hemisphere 4 along the sliding direction of the second buffer hemisphere 5, and the distance between the center of the second buffer hemisphere 5 at the initial position and the center of the first buffer hemisphere 4 is 0.1-0.15 times of the diameter of the first buffer hemisphere 4, so that the first buffer hemisphere 4 and the second buffer hemisphere 5 can be displaced in the horizontal direction in time when being squeezed relatively, and the first buffer hemisphere 4 and the second buffer hemisphere 5 can play a role in buffering.
As shown in fig. 1 and 3, the back buffer member 6 includes a sliding short groove 11 disposed on the upper surface of the lower steel plate 2, a slider 12 disposed at the bottom end of the second buffer semi-sphere 5 and sliding in the sliding short groove 11, and a back tension spring 13 disposed between the end wall of the sliding short groove 11 in the length direction and the slider 12, the back tension spring 13 of the present invention is disposed at one end of the sliding short groove 11 departing from the moving direction of the second buffer semi-sphere 5; buffering semicircle ball two 5 drives to slide and slides in the short slot 11 that slides under the pressure of buffering semicircle ball one 4, and pull-back spring 13 is stretched this moment, when buffering semicircle ball one 4 withdraws the pressure to buffering semicircle ball two 5 gradually, under the answer elasticity of pull-back spring 13, can stimulate buffering semicircle ball two 5 and slider 12 and get back to original position.
The working process is as follows:
when the upper steel plate 1 is subjected to external force, the base column 3 drives the first buffer semi-sphere 4 to move downwards, the first buffer semi-sphere 4 and the second buffer semi-sphere 5 are relatively extruded in a cambered surface mode, the first buffer semi-sphere 4 and the second buffer semi-sphere 5 move downwards along with the downward movement of the first buffer semi-sphere 4, the first buffer semi-sphere 4 and the second buffer semi-sphere 5 are relatively rubbed and extruded in a cambered surface mode, vertical force transmitted by the upper steel plate 1 is dispersed in other directions, a buffer effect can be achieved when the upper steel plate 1 moves downwards, meanwhile, in the process that the first buffer semi-sphere 4 and the second buffer semi-sphere 5 are relatively extruded in a cambered surface mode, the base 8 moves in the base cavity base 7, the rebound spring 9 is compressed, after the external force disappears, the rebound spring 9 resets and can push the upper steel plate 1 back to the original position, and meanwhile, the first buffer semi-sphere 4 and the second buffer semi-sphere 5 relatively leave, the piece 6 that slows back will cushion two 5 pull-back normal positions of semicircle ball, simultaneously, the buffering auxiliary member 10 slides the in-process at base 8, can strengthen damping device's shock attenuation effect, and then the utility model discloses can effectively improve the anti-seismic performance of high-speed railway bridge.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.
Claims (8)
1. The utility model provides a high-speed railway bridge support subtracts isolation device, includes steel sheet (1) and lower steel sheet (2), its characterized in that: still including setting up a plurality of foundation columns (3) at last steel sheet (1) lower surface, setting up in vertical decurrent buffering semicircle ball (4) of foundation column (3) bottom cambered surface, slide and set up under steel sheet (2) upper surface and buffering semicircle ball (4) relative and the equal diameter buffering semicircle ball two (5), the cambered surface of buffering semicircle ball two (5) is vertical upwards to be set up, initial position buffering semicircle ball two (5) cambered surface is relative with buffering semicircle ball (4) cambered surface, still including setting up on steel sheet (2) down and being used for pulling back buffering semicircle ball two (5) back initial position's back buffer (6), set up under base chamber seat (7) of steel sheet (2) upper surface end wall department, set up at last steel sheet (1) lower surface end wall department and base (8) that slides in base chamber seat (7), set up and be used for restoring initial state rebound spring (9) of last steel sheet (1) between base chamber seat (7) diapire and base (8) bottom And a buffer auxiliary part (10) in the base cavity seat (7), wherein the moving distance of the base (8) is not less than the moving distance of the buffer semi-sphere I (4).
2. The high-speed rail bridge support seismic isolation and reduction device of claim 1, wherein: the back-buffering piece (6) comprises a sliding short groove (11) arranged on the upper surface of the lower steel plate (2), a sliding block (12) arranged at the bottom end of the buffering semi-spherical ball II (5) and sliding in the sliding short groove (11), and a back-pulling spring (13) arranged between the end wall of the sliding short groove (11) in the length direction and the sliding block (12).
3. The high-speed rail bridge support seismic isolation and reduction device of claim 1, wherein: the buffering auxiliary part (10) comprises a plurality of horizontal arc grooves (14) which are arranged on the inner side wall of the base cavity seat (7) along the vertical direction and a plurality of elastic arc strips (15) which are arranged at the bottom end of the peripheral wall of the base (8) along the vertical direction and slide between the horizontal arc grooves (14).
4. The high-speed rail bridge support seismic isolation and reduction device of claim 2, wherein: and a bearing arc groove (16) for bearing the buffering semi-sphere I (4) is formed in the wall surface of the lower steel plate (2) opposite to the buffering semi-sphere I (4).
5. The high-speed rail bridge support seismic isolation and reduction device of claim 4, wherein: an elastic buffer pad (17) is arranged on the cambered surface of the first buffer semi-sphere (4).
6. The high-speed rail bridge support seismic isolation and reduction device of claim 5, wherein: the center of the buffering semi-sphere II (5) at the initial position deviates from the center of the buffering semi-sphere I (4) along the sliding direction of the buffering semi-sphere II (5), and the distance between the center of the buffering semi-sphere II (5) at the initial position and the center of the buffering semi-sphere I (4) is 0.1-0.15 times of the diameter of the buffering semi-sphere I (4).
7. The high-speed rail bridge support seismic isolation and reduction device of claim 3, wherein: transition fillets (18) are arranged between the adjacent horizontal arc grooves (14).
8. The high-speed rail bridge support seismic isolation and reduction device of claim 1, wherein: one end of the foundation column (3) far away from the buffering semi-sphere I (4) is provided with a trapezoidal reinforcing block (19) embedded in the upper steel plate (1), and the narrow end of the trapezoidal reinforcing block (19) is vertically arranged downwards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920657361.1U CN210561688U (en) | 2019-05-08 | 2019-05-08 | Shock absorption and isolation device for high-speed rail bridge support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920657361.1U CN210561688U (en) | 2019-05-08 | 2019-05-08 | Shock absorption and isolation device for high-speed rail bridge support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210561688U true CN210561688U (en) | 2020-05-19 |
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ID=70627662
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920657361.1U Expired - Fee Related CN210561688U (en) | 2019-05-08 | 2019-05-08 | Shock absorption and isolation device for high-speed rail bridge support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210561688U (en) |
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2019
- 2019-05-08 CN CN201920657361.1U patent/CN210561688U/en not_active Expired - Fee Related
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Granted publication date: 20200519 |