CN210507110U

CN210507110U - Bridge anti-seismic support

Info

Publication number: CN210507110U
Application number: CN201920864881.XU
Authority: CN
Inventors: 姚欢; 赵伊华; 王绍磊
Original assignee: Yueyang Huihua Investment Development Co Ltd
Current assignee: Yueyang Huihua Investment Development Co Ltd
Priority date: 2019-06-10
Filing date: 2019-06-10
Publication date: 2020-05-12
Anticipated expiration: 2029-06-10

Abstract

The utility model discloses a bridge anti-seismic support solves the not enough problem of current support flexibility. The bridge pier supporting structure comprises an upper supporting plate, a lower supporting plate, an upper tongue plate and a lower tongue plate, wherein the upper supporting plate is fixedly connected with a bridge, the lower supporting plate is fixedly connected with a bridge pier, the upper tongue plate and the lower tongue plate are arranged between the upper supporting plate and the lower supporting plate, the upper tongue plate is composed of an arc surface I and a plane I, and the upper tongue plate slides relative to the upper supporting plate along the direction of a slideway I; the lower tongue plate slides along the direction of the slideway II relative to the lower support plate; the upper tongue plate and the lower tongue plate are rotatably matched through the rotary insertion parts I and II. The support has the vibration, deviation and anti-seismic functions in the longitudinal and transverse directions, can effectively reduce the vibration of the bridge in the three-dimensional space direction, and reduces the vibration energy.

Description

Bridge anti-seismic support

Technical Field

The utility model relates to a bridge beam supports technical field.

Background

Bridge bearings are important structural components that connect the superstructure and substructure of a bridge. The device can reliably transfer the counter force and the deformation (displacement and corner) of the upper bridge structure to the lower bridge structure.

The support deformation possibility classification comprises a fixed support, a single movable support and a plurality of movable supports.

Chinese patent document CN103510464B discloses an improved double-spherical support, which is technically characterized in that a pendulum seat structure with a basin-shaped structure is used, and an energy dissipater is used for shock-resistant energy dissipation, wherein in the structure, under the limitation of the energy dissipater, the pendulum seat swings within a small amplitude range to dissipate energy.

SUMMERY OF THE UTILITY MODEL

In order to solve the not enough of prior art, the utility model provides a bridge anti-seismic support solves current anti-seismic support and consumes energy the drawback that the effect is poor, can not realize extensive gyration.

The utility model provides a technical scheme that its technical problem adopted does:

bridge anti-seismic support goes up extension board and extension board down, wherein, goes up extension board and bridge fixed connection, extension board and pier fixed connection, its characterized in that down:

the lower surface of the upper support plate is provided with a protrusion I and an arc-shaped groove I, and a slide way I is arranged in the arc-shaped groove I;

the top of the lower support plate is provided with a protrusion III and an arc-shaped groove II, and a slide way II is arranged in the arc-shaped groove II;

also comprises an upper tongue plate and a lower tongue plate which are arranged between the upper support plate and the lower support plate,

the upper tongue plate is composed of an arc surface I and a plane I, wherein a protrusion II and a rotary insertion part I are respectively arranged on the arc surface I and the plane I, and the protrusion II is inserted into the slide way I to enable the upper tongue plate to slide relative to the upper support plate along the direction of the slide way I;

the lower tongue plate consists of an arc-shaped surface II and a plane II₁A bulge IV and a rotary inserting part II are respectively arranged on the arc-shaped surface II and the plane II, and the bulge IV is inserted into the slide way II to enable the lower tongue plate to slide along the slide way II relative to the lower support plate;

the upper tongue plate and the lower tongue plate are rotatably matched through the rotary insertion parts I and II.

Furthermore, the rotary insertion parts I and II are in annular rotary fit.

Further, set up crashproof dope layer on the arch I that just is close to arc wall I of last extension board both sides.

Further, the surface of the protrusion I where the anti-collision paint is located is an inclined plane.

And furthermore, anti-collision coatings are arranged on the bulges II which are arranged on the two sides of the lower support plate and close to the arc-shaped groove II.

Further, the surface of the protrusion II where the anti-collision paint is located is an inclined plane.

The utility model has the advantages that:

the support has the vibration, deviation and anti-seismic functions in the longitudinal and transverse directions, can effectively reduce the vibration of the bridge in the three-dimensional space direction, and reduces the vibration energy.

The support has the rotation capacity within the range of 360 degrees, can meet the rotation requirement of a bridge, and is favorable for the rotation requirement at the initial stage of bridge installation.

Drawings

Fig. 1 is a perspective view of a first embodiment.

Fig. 2 is a front view of the first embodiment.

Fig. 3 is a sectional view taken along line a-a in fig. 2.

FIG. 4 is a partial sectional view of the embodiment.

Fig. 5 is a schematic view of the vibration process.

FIG. 6 is a perspective view of the upper plate.

Fig. 7 is a perspective view of the upper tongue plate (or the lower tongue plate).

Fig. 8 is a schematic structural diagram of the second embodiment.

Fig. 9 is a perspective view of the upper tongue plate.

Fig. 10 is a perspective view of the lower tongue plate and the lower support plate.

Fig. 11 is a perspective view of a third embodiment.

In the figure: 100 upper support plates, 101 high-strength bolts, 110 protrusions I, 120 arc-shaped grooves I, 121 slideways I, 130 anti-collision coatings, 131 inclined planes I,

200 upper tongue plate, 210 arc surface, 211 bulge II, 220 plane, 221 annular bulge I, 222 cylindrical groove I, 223 annular groove I,

300 lower support plate, 310 bulge III, 311 arc groove II, 312 slideway II, 320 anti-collision coating, 321 inclined plane II,

400 lower tongue plate, 410 lug boss II, 411 locking pin groove II, 420 cylindrical protrusion IV, 430 circular ring protrusion VI, 440 protrusion V,

a 500 nylon sleeve, a 510 locking pin,

600 the buffer stop lever is arranged on the upper portion of the frame,

700 safety pin configuration.

Detailed Description

A traditional bridge support only has an anti-seismic function, and a basin-type support is taken as an example, and the support has the adjustment capacity of micro amplitude in a three-dimensional space but does not have the rotation capacity.

In a first embodiment, referring to fig. 1 to 5, the support of the present invention comprises the following components:

the upper stay 100 is fixed with a high-strength bolt 101, which is fixed to the bridge body and is usually buried in the back of the bridge.

The lower part of the upper support plate 100 is a protrusion I110 protruding downwards, the protrusion I110 is a square protrusion, the lower surface of the protrusion I110 is an arc-shaped groove I120 recessed upwards, a bus of the arc-shaped groove I120 is parallel to two side edges of the square protrusion I, a plurality of slide ways I121 arranged at equal intervals are arranged in the arc-shaped groove I, the slide ways I are arranged along the direction of an arc line, namely, the slide ways I121 in a plurality of circular directions are formed in the arc-shaped groove I.

On the protruding I part of going up extension board 100 both sides, being close to arc wall I, carry out application crashproof coating 130, this crashproof coating can be the rubber grained layer for slow down the anticollision, and the thickness is several millimeters usually.

The surface of the bump I at the part where the anti-collision paint 130 is arranged is made into an inclined surface I131, and the inclined surface is optimally designed into a slope of 3 degrees to form an optimal collision angle. That is to say, under this kind of angle, the collision bearing area between upper and lower backup plate is bigger, more is favorable to bearing the impact.

The tongue plate 200 is composed of an arc-shaped surface 210 and a plane 220, wherein two concentric annular protrusions i 221 are arranged on the plane, and the annular protrusions i 221 form a cylindrical groove i 222 and an annular groove i 223 on the tongue plate 200, as shown in fig. 9. The arc-shaped face is provided with a plurality of arc-shaped protrusions II 211, the protrusions II 211 are used for being matched with the slide I121, namely, the protrusions II 211 and the slide I121 are in a mutually inserted connection relation in the matching state of the upper tongue plate and the upper support plate, so that the upper tongue plate 200 can slide along the direction of the slide I relative to the upper support plate, namely, the sliding capacity is realized in the arc direction of the slide I121, namely, the freedom degree of arc-shaped swinging is realized.

The lower plate 300 has a similar structure to the upper plate, and is disposed in the opposite direction.

The top of the lower supporting plate 300 is provided with a protrusion III 310 protruding upwards, the protrusion III 310 is a square protrusion, the upper surface of the protrusion III 310 is provided with an arc-shaped groove II 311 recessed downwards, the generatrix of the arc-shaped groove II 311 is parallel to two side edges of the square protrusion III, a plurality of slide ways II 312 arranged at equal intervals are arranged in the arc-shaped groove II, the slide ways II 312 are arranged along the direction of an arc line, namely, a plurality of slide ways II 312 in the circular direction are formed in the arc-shaped groove II.

At extension board 300 both sides down, on the protruding II parts that are close to arc wall II, scribble anti-collision paint 320, this anti-collision paint can be the rubber grained layer for slow down the anticollision.

The surface of the protrusion II at the part where the anti-collision paint 320 is positioned is made into a slope II 321, and the slope is optimally designed to be 3 degrees to form an optimal collision angle. That is to say, under this kind of angle, the collision bearing area between upper and lower backup plate is bigger, more is favorable to bearing the impact.

The lower tongue plate 400 is composed of an arc-shaped surface and a plane, wherein a boss II 410 protruding upwards is arranged on the plane part, the boss II 410 continues to extend upwards at the upper surface of the lower tongue plate to form a cylindrical protrusion IV 420 and an annular protrusion VI 430, and the cylindrical protrusion IV 420 and the annular protrusion VI 430 are respectively in plug-in connection with the cylindrical groove I and the annular groove I to form a support, namely, the lower tongue plate and the cylindrical protrusion IV and the annular protrusion VI 430 are in rotatable connection.

The arc-shaped surface part of the lower side is provided with a plurality of arc-shaped protrusions V440, the protrusions V440 are used for being matched with the slide II 312, namely, the protrusions V440 and the slide II 312 are in a mutually inserted connection relationship in the matching state of the lower tongue plate and the lower support plate, so that the lower tongue plate can slide along the direction of the slide II relative to the lower support plate, namely, the lower tongue plate has the sliding capacity in the arc direction of the slide II, namely, the lower tongue plate has the freedom degree of arc-shaped swinging.

The utility model discloses simple structure utilizes the rotating-structure between the upper and lower hyoplastron can accomplish the action of turning of axle body.

In the second embodiment, the first embodiment of the method,

referring to fig. 8, 9 and 10, the present embodiment modifies the matching structure between the upper and lower tongues on the basis of the first embodiment, and the specific modification is as follows: the locking pin groove II 411 is formed in the annular protrusion I221 and the boss II 410 between the upper tongue plate and the lower tongue plate, after the rotation is completed, the locking pin groove II 411 between the upper tongue plate and the lower tongue plate is aligned, then the locking pin 510 is used for locking, under the action of an upper bridge, the locking pin can be locked between the upper tongue plate and the lower tongue plate, and the upper tongue plate and the lower tongue plate can not rotate relatively. This function is normally used in the bridge deck hoisting phase to assist the turning action of the bridge. After the installation is finished, the bridge does not rotate relative to the bridge pier.

A nylon sleeve 500 is arranged between the annular protrusion VI and the annular groove I which are inserted between the upper tongue plate and the lower tongue plate, and the nylon sleeve 500 is filled in a gap between the annular protrusion VI and the annular groove I and used for buffering horizontal load and reducing friction coefficient in the rotating process.

In the service stage of the bridge, the arc sliding direction between the upper tongue plate 200 and the upper support is attached to the width direction of the bridge, that is, the arc sliding direction between the lower tongue plate 400 and the lower support is attached to the length direction of the bridge, that is, the arc sliding direction between the lower tongue plate and the lower support is attached to the length direction of the bridge, so that the generation of stress is avoided.

EXAMPLE III

Referring to fig. 11, in the service process of the support, main vibrations come from the left and right directions, that is to say the direction of perpendicular to road traffic direction, on the left and right directions, because the width of bridge is limited, so need restrict the swing range on the left and right directions, the utility model discloses in take measures be, control the swing range between last extension board and the last hyoplastron, increase buffering gag lever post 600 through the welded form on last extension board, make the swing on the left and right directions obtain the restriction through the existence of this buffering gag lever post, further increase its security performance.

Meanwhile, a safety pin structure 700 is arranged in the splicing structure between the upper tongue plate and the lower tongue plate, specifically, the splicing structure at the matching surface of the upper tongue plate and the lower tongue plate is arranged between the cylindrical groove I222 and the cylindrical protrusion IV 420, gaps with unequal intervals are radially arranged between the cylindrical groove I222 and the cylindrical protrusion IV 420, and under the action of strong earthquakes such as earthquakes, shearing is firstly carried out at the safety pin, and then earthquake-resistant energy-consuming movement is carried out.

The above-mentioned embodiments are only intended to describe the preferred embodiments of the present invention, but not to limit the scope of the present invention, and those skilled in the art should be able to make various modifications and improvements to the present invention without departing from the spirit of the present invention.

Claims

1. Bridge anti-seismic support goes up extension board and extension board down, wherein, goes up extension board and bridge fixed connection, extension board and pier fixed connection, its characterized in that down:

the lower tongue plate consists of an arc-shaped surface II and a plane II, wherein a bulge IV and a rotary insertion part II are respectively arranged on the arc-shaped surface II and the plane II, and the bulge IV is inserted into the slide way II to ensure that the lower tongue plate slides along the direction of the slide way II relative to the lower support plate;

2. An anti-seismic bridge support according to claim 1, wherein said rotary connectors I and II are in annular rotary engagement.

3. An anti-seismic bridge support according to claim 1, wherein anti-collision paint layers are provided on the protrusions I on both sides of the upper support plate and adjacent to the arc-shaped groove I.

4. An anti-seismic bridge support according to claim 3, wherein the surface of the protrusion I where the anti-collision paint is located is an inclined surface.

5. An anti-seismic bridge support according to claim 1, wherein anti-collision paint is arranged on the projections II on both sides of the lower support plate and close to the arc-shaped groove II.

6. An anti-seismic bridge support according to claim 5, wherein the surface of the protrusion II where the anti-collision paint is located is an inclined surface.