CN108166382B - Triangular shock-absorbing support - Google Patents
Triangular shock-absorbing support Download PDFInfo
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- CN108166382B CN108166382B CN201810110733.9A CN201810110733A CN108166382B CN 108166382 B CN108166382 B CN 108166382B CN 201810110733 A CN201810110733 A CN 201810110733A CN 108166382 B CN108166382 B CN 108166382B
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- plate
- trapezoidal
- isosceles trapezoid
- elastic element
- rectangular groove
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/04—Bearings; Hinges
- E01D19/041—Elastomeric bearings
Abstract
The invention provides a triangular shock absorption support which comprises a top plate, a spherical crown lining plate, a bottom basin, a bottom plate, trapezoidal plates and a reset elastic element, wherein an isosceles trapezoidal block I is fixedly arranged at the bottom of the bottom basin and is embedded in a rectangular groove I on the bottom plate, the trapezoidal plates are arranged on two sides of the isosceles trapezoidal block I and are in a right-angle trapezoid shape, the right-angle side of each trapezoidal plate is in contact fit with the side wall of the rectangular groove I, the slope of the bevel edge of each trapezoidal plate is the same as that of the bevel edge of the isosceles trapezoidal block I, a gap is reserved between the horizontal edge of each trapezoidal plate and the rectangular groove I, the reset elastic element is perpendicular to the horizontal edge of each trapezoidal plate, one end of the reset elastic element is fixedly arranged on each trapezoidal plate, the other end of the reset elastic element is fixedly arranged on the bottom plate, the upper portion of the bottom basin is a spherical groove, the spherical groove is matched with the spherical surface of the spherical crown lining plate, and the top plate is fixedly provided with the top plate, and the invention has the advantages that: the damping support is simple in structure, convenient to install, good in damping performance and long in service life.
Description
Technical Field
The invention relates to the technical field of bridge damping supports, in particular to a triangular damping support.
Background
The support is an important force transmission device of a bridge, and the design considers that the support has enough bearing force to ensure that the counter force (vertical force and horizontal force) of the support is safely and reliably transmitted to a lower structure; secondly, the restraint of the support on the deformation (displacement and corner) of the bridge is as small as possible so as to adapt to the requirements of free expansion and rotation of the beam body, otherwise, secondary internal force can be generated in the statically indeterminate structure, the structure is damaged, and the service life of the structure is greatly shortened.
When an earthquake, particularly a larger earthquake grade, occurs, the upper structure of the bridge has certain displacement and speed relative to the bridge pier, so that a powerful effect is caused between the beam body and the bridge pier, and if the support does not have good shock absorption and shock insulation effects, the bridge body is greatly damaged, and the breakage of the pier bottom and the beam falling accidents are possibly caused. In the traditional friction pendulum vibration reduction and isolation support, the aim of isolating vibration is fulfilled by prolonging the natural vibration period of a bridge according to the pendulum principle, but certain lifting amount can be caused by the shock absorption of the friction pendulum; the traditional steel yield type shock absorption can have a failure phenomenon after multiple shock absorption.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: to the problem that prior art exists, provide a triangle shock mount, shock mount simple structure, simple to operate, damping performance is good and long service life.
The technical problem to be solved by the invention is realized by adopting the following technical scheme: the utility model provides a triangle shock mount, includes roof, spherical crown welt, end basin, bottom plate, trapezoidal plate and the elastic element that resets, the bottom of end basin has set firmly isosceles trapezoid piece I, isosceles trapezoid piece I inlays the rectangular channel I on the bottom plate in, isosceles trapezoid piece I's both sides are equipped with the trapezoidal plate, the trapezoidal plate is right trapezoid, the right-angle side of trapezoidal plate and rectangular channel I's lateral wall contact cooperation, and the hypotenuse of trapezoidal plate is the same with isosceles trapezoid piece I's hypotenuse slope, leaves the clearance between the horizontal limit of trapezoidal plate and the rectangular channel I, the horizontal limit of elastic element perpendicular to trapezoidal plate resets, and the one end that resets elastic element sets firmly on the trapezoidal plate, and the other end is fixed on the bottom plate, the upper portion of end basin is spherical recess, spherical recess and spherical crown welt spherical cooperation, the upper portion of spherical crown welt has set firmly the roof.
Preferably, roof and spherical crown welt between be equipped with the upper plate, the lower part of upper plate sets firmly on the spherical crown welt, and the upper portion of upper plate has set firmly isosceles trapezoid piece II, isosceles trapezoid piece II sets up with the same and mutually perpendicular of isosceles trapezoid piece I size, isosceles trapezoid piece II inlays the dress in rectangular channel II of roof lower part, isosceles trapezoid piece II's both sides also are equipped with the trapezoidal plate, the right angle limit of trapezoidal plate and rectangular channel II's lateral wall contact cooperation, also be equipped with the elastic element that resets between trapezoidal plate and the upper plate, the horizontal limit of the elastic element perpendicular to trapezoidal plate resets.
Preferably, the isosceles trapezoid blocks I and II are both double-layer structures, and the double-layer structures are formed by symmetrically overlapping two isosceles trapezoid plates with the same size.
Preferably, the top plate and the bottom plate are both provided with cover plates, one end of each cover plate on the top plate is locked on the top plate through a shear bolt, the other end of each cover plate on the top plate is fixedly arranged on the trapezoidal plate in the rectangular groove I, one end of each cover plate on the bottom plate is locked on the bottom plate through a shear bolt, and the other end of each cover plate is fixedly arranged on the trapezoidal plate in the rectangular groove II.
Preferably, gaps are reserved between the trapezoid plates and the isosceles trapezoid blocks I and/or the isosceles trapezoid blocks II.
Preferably, the wall surfaces of the rectangular groove I and the rectangular groove II are coated with energy dissipation coatings.
Preferably, isosceles trapezoid piece I be bilayer structure, bilayer structure is that two isosceles trapezoid boards that the size is the same are symmetrical to be stacked and constitute, install the apron on the bottom plate, the one end of apron on the bottom plate is passed through shear bolt and is locked on the bottom plate, and the other end sets firmly on the trapezoidal board in rectangular channel II.
Preferably, the angle of the inclined edge of the trapezoidal plate is larger than the friction self-locking angle of the material of the inclined edge.
Preferably, a polyethylene plate interlayer is arranged between the top plate and the spherical cap lining plate or between the upper plate and the spherical cap lining plate.
Compared with the prior art, the invention has the beneficial effects that: the mutual friction of the triangle-like plate structure and the trapezoidal inclined plate is adopted for transverse and longitudinal shock absorption, the phenomenon that a support is lifted in the shock absorption process is effectively avoided, and meanwhile, the inclination of the inclined edge of the triangular plate is smaller than the self-locking angle of the material of the inclined edge, so that the triangular plate can be prevented from self-locking in the shock absorption process; because the set-square atress is even and this structure has good mechanical stability, can guarantee damping bearing repetitious usage, and keeps good shock attenuation effect, so this support is simple structure not only, and the shock attenuation is effectual, long service life moreover, easy dismounting.
Drawings
Fig. 1 is a top view of a first embodiment of the present invention.
Fig. 2 is a sectional view taken along the direction a of the first embodiment of the present invention.
Fig. 3 is a sectional view taken along line B of the first embodiment of the present invention.
Fig. 4 is a cross-sectional view taken along line C of the first embodiment of the present invention.
Fig. 5 is a top view of a second embodiment of the present invention.
Fig. 6 is a cross-sectional view taken along direction D of the second embodiment of the present invention.
Fig. 7 is a cross-sectional view of a base plate of a third embodiment of the present invention.
The labels in the figure are: 1-top plate, 2-spherical cap lining plate, 3-bottom basin, 4-bottom plate, 5-rectangular groove I, 6-upper plate, 7-isosceles trapezoid block I, 8-isosceles trapezoid block II, 9-rectangular groove II, 10-trapezoid plate, 11-reset elastic element, 12-polyethylene plate interlayer, 13-cover plate and 14-shear bolt.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1, 2 and 3, the top view and a-direction cross-sectional view of the first embodiment, a triangular shock-absorbing support includes a top plate 1, a spherical crown lining plate 2, a bottom basin 3, a bottom plate 4, an upper plate 6, trapezoidal plates and a reset elastic element, a rectangular groove I5 is provided on the bottom plate 4, the bottom basin 3 is embedded in the rectangular groove I5, the lower part of the bottom basin 3 is an isosceles trapezoidal block I7, the isosceles trapezoidal block I7 is formed by overlapping two isosceles trapezoidal plates which are symmetrically arranged, the horizontal side of the isosceles trapezoidal block I7 can transversely reciprocate along the groove wall of the rectangular groove I5, the trapezoidal plates are provided between the isosceles trapezoidal block I7 and the rectangular groove I5, the trapezoidal plates are right-angle trapezoidal plates which are in contact fit with the side wall of the rectangular groove I5 and are in contact with the right-angle side wall of the rectangular groove I5 for enhancing the shock-absorbing effect and the wear resistance of the mating piece of the contact, a coating can be provided on the side wall of the rectangular groove I5 or the right-angle side wall of the rectangular trapezoidal plate or on the rectangular groove I5, the other end of the elastic element is provided with a reset elastic element, and the elastic element is provided with a double-layer elastic element, and the elastic element is provided on the bottom plate, and the elastic element is provided with a reset elastic element provided with a double-layer elastic element.
When 3 lower parts of end basin isosceles trapezoid shape piece I7 along rectangular channel I5 horizontal migration, the continuous extrusion trapezoidal plate of hypotenuse of isosceles trapezoid shape piece I7 one side, the hypotenuse of trapezoidal plate is the same with isosceles trapezoid shape piece I7's hypotenuse slope, and the hypotenuse angle is greater than the friction auto-lock angle of trapezoidal plate material, prevents the problem of auto-lock from appearing in the trapezoidal plate motion process. The vibration damping device comprises an upper trapezoidal plate and a lower trapezoidal plate which are arranged in a rectangular groove I5, and oppositely slide backwards under the driving of an isosceles trapezoidal block I7, when the horizontal edge of the trapezoidal block is in contact with the rectangular groove I5, the movement is stopped, and in the movement process of the trapezoidal plates, as the vertical edge of the trapezoidal plate is in contact with the side wall of the rectangular groove I5, a large friction force is generated to attenuate and consume the impact received by a support, so that the movement friction damping is realized, a cover plate 13 is further arranged on the trapezoidal plate, one end of the cover plate 13 is fixed on the trapezoidal plate, the other end of the cover plate is locked on a bottom plate 4 through a shear bolt 14, the cover plate 13 and the shear bolt 14 provide a preset fixed force for the movement of the trapezoidal plate, when the acting force of the isosceles trapezoidal block I7 on the trapezoidal plate is greater than the strength of the shear bolt 14, the shear bolt 14 breaks, the trapezoidal plate can move along with the isosceles trapezoidal block I7, the cover plate 13 and the shear bolt 14 set the stress of the whole vibration damping support for the initial movement, when the vibration force does not reach the preset vibration damping support, and the vibration damping support does not work when the vibration force is greater than the vibration force value of the vibration damping support, and the vibration damping support (the vibration damping support) is greater than the vibration damping support.
As shown in fig. 2 and 4, the upper portion of the bottom basin 3 is a spherical groove, the upper portion of the bottom basin 3 is provided with a spherical cap lining plate 2, the lower portion of the spherical cap lining plate 2 is in spherical contact fit with the spherical groove of the bottom basin 3, the spherical cap lining plate 2 can transmit forces in multiple directions to the bottom basin 3 at the lower portion of the spherical cap lining plate, the upper portion of the spherical cap lining plate 2 is provided with an upper plate 6, a polyethylene plate interlayer is arranged between the upper plate 6 and the spherical cap lining plate 2, the upper portion of the upper plate 6 is an isosceles trapezoid block II8, the isosceles trapezoid block II8 is embedded in a rectangular groove II9 at the lower portion of the top plate 1, the isosceles trapezoid block II8 is perpendicular to the isosceles trapezoid block I7, the structure of the isosceles trapezoid block II8 is the same as that of the isosceles trapezoid block I7, a trapezoid block II8 is also arranged between the isosceles trapezoid block II and the rectangular groove II9, the trapezoid block also defines an initial force value of movement through a cover plate 13 and a shear bolt 14, a reset elastic element is also arranged between the horizontal side of the trapezoid block and the top plate 1, the trapezoid block I and the trapezoid block II disappears after the movement, the external load force disappears, the trapezoid block moves smoothly, the trapezoid block II returns to the rectangular groove and the shock absorption groove can be arranged in a horizontal direction, and the shock absorption groove type, and the shock absorption effect of a double-reduction type shock absorption case is good.
As shown in fig. 5 and 6, the top view and the cross-sectional view in the direction D of the second embodiment are different from those of the first embodiment in that the present embodiment does not include the upper plate 6, the top plate 1 is mounted on the upper portion of the spherical cap liner 2, and the polyethylene plate interlayer 12 is disposed between the top plate 1 and the spherical cap liner 2.
As shown in fig. 7, the cross-sectional view of the third embodiment is different from the structures of the first and second embodiments in that a gap with a certain distance is left between the oblique edge of the isosceles trapezoid block I7 and/or the isosceles trapezoid block II8 and the oblique edge of the trapezoid plate in this embodiment, and the isosceles trapezoid block I7 and/or the isosceles trapezoid block II8 contacts with the trapezoid plate to absorb shock after moving the gap distance.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, it should be noted that any modifications, equivalents and improvements made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (9)
1. A triangle damping support, its characterized in that: comprises a top plate (1), a spherical crown lining plate (2), a bottom basin (3), a bottom plate (4), a trapezoidal plate and a resetting elastic element, an isosceles trapezoid block I (7) is fixedly arranged at the bottom of the bottom basin (3), the isosceles trapezoid blocks I (7) are embedded in the rectangular grooves I (5) on the bottom plate (4), trapezoidal plates are arranged on two sides of the isosceles trapezoid block I (7), the trapezoidal plates are in a right trapezoid shape, the right-angle edges of the trapezoidal plates are in contact fit with the side walls of the rectangular groove I (5), the slope of the bevel edges of the trapezoidal plates is the same as that of the bevel edges of the isosceles trapezoid block I (7), a gap is reserved between the horizontal edge of the trapezoidal plates and the rectangular groove I (5), and the reset elastic element is perpendicular to the horizontal edge of the trapezoidal plates, one end of the reset elastic element is fixedly arranged on the trapezoidal plate, the other end is fixed on the bottom plate (4), the upper part of the bottom basin (3) is a spherical groove which is matched with the spherical surface of the spherical crown lining plate (2), the upper part of the spherical crown lining plate (2) is fixedly provided with a top plate (1), the horizontal edge of the isosceles trapezoid block I (7) can transversely reciprocate along the groove wall of the rectangular groove I (5), the bevel edge of the trapezoid block is in contact fit with the isosceles trapezoid block I (7), when the isosceles trapezoid block I (7) at the lower part of the bottom basin (3) horizontally moves along the rectangular groove I (5), the inclined edge at one side of the isosceles trapezoid block I (7) continuously extrudes the trapezoid plate.
2. The triangular shock-absorbing mount according to claim 1, wherein: roof (1) and spherical crown welt (2) between be equipped with upper plate (6), the lower part of upper plate (6) sets firmly on spherical crown welt (2), the upper portion of upper plate (6) has set firmly isosceles trapezoid piece II (8), isosceles trapezoid piece II (8) and isosceles trapezoid piece I (7) the same size and mutually perpendicular set up, isosceles trapezoid piece II (8) inlay the dress in rectangular channel II (9) of roof (1) lower part, the both sides of isosceles trapezoid piece II (8) also are equipped with the trapezoidal plate, the right angle limit of trapezoidal plate and the lateral wall contact cooperation of rectangular channel II (9), also be equipped with the elastic element that resets between trapezoidal plate and upper plate (6), the horizontal limit of elastic element perpendicular to trapezoidal plate resets.
3. The triangular shock mount according to claim 2, wherein: isosceles trapezoid piece I (7) and isosceles trapezoid piece II (8) be bilayer structure, bilayer structure is that two isosceles trapezoid boards that the size is the same are symmetrical to be stacked and are constituteed.
4. The triangular shock mount according to claim 3, wherein: the roof (1) and bottom plate (4) on all install the apron, the one end of the apron on roof (1) is passed through shear bolt and is locked on roof (1), the other end sets firmly on the trapezoidal plate in rectangular channel I (5), the one end of the apron on bottom plate (4) is passed through shear bolt and is locked on bottom plate (4), the other end sets firmly on the trapezoidal plate in rectangular channel II (9).
5. The triangular shock mount according to claim 4, wherein: gaps are reserved between the trapezoid plates and the isosceles trapezoid blocks I (7) and/or the isosceles trapezoid blocks II (8).
6. The triangular shock mount according to claim 5, wherein: the wall surfaces of the rectangular groove I (5) and the rectangular groove II (9) are coated with energy dissipation coatings.
7. The triangular shock mount according to claim 1, wherein: isosceles trapezoid piece I (7) be bilayer structure, bilayer structure is that two isosceles trapezoid boards that the size is the same are symmetrical to superpose and constitute, install the apron on bottom plate (4), the one end of apron on bottom plate (4) is passed through shear bolt and is locked on bottom plate (4), the other end sets firmly on the trapezoidal board in rectangular channel II (9).
8. The triangular shock mount according to claim 6 or 7, wherein: the angle of the inclined edge of the trapezoidal plate is larger than the friction self-locking angle of the material of the inclined edge.
9. The triangular shock mount according to claim 8, wherein: polyethylene plate interlayers are arranged between the top plate (1) and the spherical crown lining plate (2) or between the upper plate (6) and the spherical crown lining plate (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810110733.9A CN108166382B (en) | 2018-02-05 | 2018-02-05 | Triangular shock-absorbing support |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810110733.9A CN108166382B (en) | 2018-02-05 | 2018-02-05 | Triangular shock-absorbing support |
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| CN108166382A CN108166382A (en) | 2018-06-15 |
| CN108166382B true CN108166382B (en) | 2023-04-07 |
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