CN216445781U - Karst landform area bridge antidetonation support - Google Patents

Abstract

The utility model discloses a karst landform area bridge anti-seismic support, belonging to the technical field of bridges and comprising a support body, wherein the top of the support body is provided with a positioning groove, a first anti-seismic mechanism comprises a trapezoidal block and two blocking slide blocks, the trapezoidal block is fixedly connected to the bottom of a pier, and a second anti-seismic mechanism comprises four fixed plates which are divided into two groups, the pier is arranged in the positioning groove of the support body, the downward pressure of the pier can be dispersed by matching the trapezoidal block at the bottom of the pier with the blocking slide blocks in the first anti-seismic mechanism, the sliding stability of the limiting plates on the side walls of the blocking slide blocks is improved, the first spring can provide buffer capacity for the blocking slide blocks to improve the anti-seismic capacity of the bridge, and the abutting slide blocks in the second anti-seismic mechanism are abutted to the side walls of the pier in the support body through the second spring, the transverse support is provided for the bridge pier, and the shock resistance of the bridge is further improved.

Description

Karst landform area bridge antidetonation support

Technical Field

The utility model relates to the technical field of bridges, in particular to a bridge anti-seismic support in a karst landform area.

Background

The bridge is generally a structure which is erected on rivers, lakes and seas and allows vehicles, pedestrians and the like to smoothly pass through. In order to adapt to the modern high-speed development traffic industry, bridges are also extended to be constructed for spanning mountain stream, unfavorable geology or meeting other traffic needs to enable the buildings to pass more conveniently, along with the development of the traffic transportation industry and the improvement of the building engineering standard, the support not only plays a supporting role in bridges and other projects, but also has a damping effect, and particularly needs to be provided in karst landform areas with soft geology.

At present, need set up absorbing device in bridge beam supports's use to guarantee the stability of pier, but only set up one deck buffering damping device at present, lead to the shock attenuation effect poor, and then influence the use of bridge, current damping support life is shorter simultaneously.

Disclosure of Invention

Aiming at the problems in the prior art, the utility model aims to provide a shock-proof support for a bridge in a karst landform area, and aims to solve the problems that the existing shock-proof support is poor in shock-proof effect and short in service life.

In order to solve the problems, the utility model adopts the following technical scheme:

a karst landform area bridge antidetonation support includes:

the support comprises a support body, wherein a positioning groove is formed in the top of the support body, a pier is arranged in the positioning groove, and a plurality of fixing grooves are formed in the inner surface walls of two sides of the positioning groove;

the first anti-seismic mechanism comprises a trapezoidal block and two blocking sliders, the trapezoidal block is fixedly connected to the bottom of a pier, each blocking slider is movably embedded in a corresponding fixed groove, the outer surface of one side of each blocking slider is fixedly connected with a limiting plate, and a plurality of first springs are fixedly connected between the outer surface of one side of each limiting plate and the inner surface wall of one side of the corresponding fixed groove; and

second antidetonation mechanism, second antidetonation mechanism includes four fixed plates, four the fixed plate divide into two sets ofly altogether, every group two the equal activity of fixed plate is inlayed and is located inside corresponding fixed slot, every group two equal activity is inlayed and is equipped with between the surface of fixed plate one side and promotes the butt slider, every equal fixedly connected with second spring between butt slider and the interior table wall of corresponding fixed slot one side.

According to a preferable scheme of the utility model, the bottom of the trapezoidal block is provided with a mounting groove, a positioning block is movably embedded in the mounting groove, the bottom of the positioning block is fixedly connected with the inner bottom wall of the positioning groove, and the top of the positioning block is fixedly connected with a shock absorber.

As a preferred scheme of the utility model, the outer surfaces of two sides of the positioning block are fixedly connected with L-shaped plates, and two reinforcing ribs are fixedly connected between the outer surfaces of two sides of the L-shaped plates.

As a preferable scheme of the present invention, two mounting pipes are fixedly connected to an outer surface of one side of each fixing plate, a mounting column is movably embedded in each mounting pipe, the eight mounting columns are divided into four groups, and one end of each group of two mounting columns is fixedly connected to an inner surface wall of one side of the corresponding fixing groove.

As a preferable scheme of the present invention, two third springs are fixedly connected between an outer surface of one side of each of the fixing plates and an inner surface wall of one side of the corresponding fixing groove.

As a preferable scheme of the utility model, the outer surfaces of both sides of the support body are fixedly connected with mounting rings.

3. Advantageous effects

Compared with the prior art, the utility model provides a karst landform area bridge earthquake-resistant support which has the following beneficial effects:

1. in this scheme, the pier is installed inside the constant head tank of support body, block the slider cooperation in trapezoidal piece and the first anti-seismic mechanism through the pier bottom, can disperse the decurrent pressure of pier, the limiting plate that blocks the slider lateral wall promotes its sliding stability, can provide buffer capacity to blockking the slider through first spring, promote the shock resistance of bridge, butt slider in the second anti-seismic mechanism supports through the second spring and connects to the pier lateral wall that is located support body inside, provide horizontal support for the pier, further promote the shock resistance of bridge.

2. In this scheme, it is spacing that the fixed plate carries out the centre gripping to the butt slider, promotes the mobility stability of butt slider, and the installation pipe on the fixed plate and the inside erection column cooperation of fixed slot promote the centre gripping stability of fixed plate, promote the fixed plate through the third spring to the centre gripping intensity of butt slider, promote the spacing effect of fixed plate.

Drawings

FIG. 1 is a perspective view of the present invention;

FIG. 2 is a cut-away perspective view of the present invention;

FIG. 3 is an enlarged view taken at A of FIG. 2 in accordance with the present invention;

fig. 4 is a second perspective view in section of the present invention.

The reference numbers in the figures illustrate:

1. a support body; 2. a bridge pier; 3. a first anti-seismic mechanism; 301. a trapezoidal block; 302. a blocking slide block; 303. a limiting plate; 304. a first spring; 305. positioning blocks; 306. a shock absorber; 307. an L-shaped plate; 308. reinforcing ribs; 4. a second anti-seismic mechanism; 401. a fixing plate; 402. abutting against the sliding block; 403. a second spring; 404. installing a pipe; 405. mounting a column; 406. a third spring; 5. and (7) installing a ring.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention.

Referring to fig. 1-4, a shock-resistant bridge support for karst landform areas includes: the support comprises a support body 1, wherein a positioning groove is formed in the top of the support body 1, a pier 2 is arranged in the positioning groove, and a plurality of fixing grooves are formed in the inner surface walls of two sides of the positioning groove; the first anti-seismic mechanism 3 comprises a trapezoidal block 301 and two blocking sliding blocks 302, the trapezoidal block 301 is fixedly connected to the bottom of the pier 2, each blocking sliding block 302 is movably embedded in a corresponding fixing groove, a limiting plate 303 is fixedly connected to the outer surface of one side of each blocking sliding block 302, and a plurality of first springs 304 are fixedly connected between the outer surface of one side of each limiting plate 303 and the inner surface wall of one side of the corresponding fixing groove; and second is anti earthquake and is constructed 4, and second is anti earthquake and is constructed 4 and include four fixed plates 401, and four fixed plates 401 divide into two sets ofly altogether, and two fixed plates 401 of every group are all movable to be inlayed and are located inside corresponding the fixed slot, and equal activity is inlayed between two fixed plates 401 of every group one side surface and is equipped with promotion butt slider 402, and equal fixedly connected with second spring 403 between every butt slider 402 and the interior table wall of corresponding fixed slot one side.

In the embodiment, pier 2 is installed inside the constant head tank of support body 1, block the slider 302 cooperation through trapezoidal piece 301 in pier 2 bottom and the first antidetonation mechanism 3, can disperse the decurrent pressure of pier 2, the limiting plate 303 who blocks the slider 302 lateral wall promotes its sliding stability, can provide buffer capacity to blocking slider 302 through first spring 304, promote the shock resistance of bridge, butt slider 402 in the second antidetonation mechanism 4 passes through second spring 403 butt to being located support body 1 inside pier 2 lateral wall, provide horizontal support for pier 2, further promote the shock resistance of bridge.

Specifically, as shown in fig. 4, a mounting groove is formed in the bottom of the trapezoidal block 301, a positioning block 305 is movably embedded in the mounting groove, the bottom of the positioning block 305 is fixedly connected with the bottom wall of the positioning groove, and a shock absorber 306 is fixedly connected to the top of the positioning block 305.

In this embodiment, the mounting groove of trapezoidal piece 301 bottom cooperates with locating piece 305 on the support body 1, promotes pier 2 installation stability, through the bumper shock absorber 306 at locating piece 305 top, promotes the shock attenuation effect of locating piece 305.

Specifically, as shown in fig. 4, the outer surfaces of the two sides of the positioning block 305 are both fixedly connected with an L-shaped plate 307, and two reinforcing ribs 308 are both fixedly connected between the outer surfaces of the two sides of the L-shaped plate 307.

In this embodiment, the positioning block 305 is stably mounted through the L-shaped plate 307, and the reinforcing ribs 308 on the L-shaped plate 307 further improve the supporting capability and stability of the positioning block 305.

Specifically, as shown in fig. 2-3, two mounting tubes 404 are fixedly connected to the outer surface of one side of each fixing plate 401, mounting posts 405 are movably embedded in each mounting tube 404, the eight mounting posts 405 are divided into four groups, and one end of each group of two mounting posts 405 is fixedly connected to the inner surface wall of one side of the corresponding fixing groove.

In this embodiment, fixed plate 401 carries out the centre gripping spacing to butt slider 402, promotes butt slider 402's mobility stability, and the installation pipe 404 on the fixed plate 401 cooperates with the erection column 405 of fixed slot inside, promotes fixed plate 401's centre gripping stability.

Specifically, as shown in fig. 2-3, two third springs 406 are fixedly connected between the outer surface of one side of each fixing plate 401 and the inner surface wall of one side of the corresponding fixing groove.

In this embodiment, the third spring 406 is used to increase the clamping strength of the fixing plate 401 to the abutting slider 402, thereby increasing the limiting effect of the fixing plate 401.

Specifically, as shown in fig. 1-2 and fig. 4, the outer surfaces of both sides of the support body 1 are fixedly connected with mounting rings 5.

In this embodiment, the mounting ring 5 on both sides of the support body 1 facilitates the connection between the plurality of support bodies 1, and improves the stability of the support body 1.

The working principle is as follows: during the use, pier 2 is installed inside the constant head tank of support body 1, block slider 302 cooperation in trapezoidal piece 301 and the first antidetonation mechanism 3 through 2 bottoms of pier, can disperse 2 decurrent pressures of pier, the limiting plate 303 who blocks the slider 302 lateral wall promotes its sliding stability, can provide buffer capacity to blockking slider 302 through first spring 304, promote the shock resistance of bridge, butt slider 402 in the second antidetonation mechanism 4 passes through second spring 403 butt to being located the 2 lateral walls of pier of support body 1 inside, provide horizontal support for pier 2, further promote the shock resistance of bridge.

Claims (6)

1. A karst landform area bridge antidetonation support which characterized in that includes:

the support comprises a support body (1), wherein a positioning groove is formed in the top of the support body (1), a pier (2) is arranged in the positioning groove, and a plurality of fixing grooves are formed in the inner surface walls of two sides of the positioning groove;

the first anti-seismic mechanism (3) comprises a trapezoidal block (301) and two blocking sliding blocks (302), the trapezoidal block (301) is fixedly connected to the bottom of the pier (2), each blocking sliding block (302) is movably embedded in a corresponding fixing groove, a limiting plate (303) is fixedly connected to the outer surface of one side of each blocking sliding block (302), and a plurality of first springs (304) are fixedly connected between the outer surface of one side of each limiting plate (303) and the inner surface wall of one side of the corresponding fixing groove; and

second antidetonation mechanism (4), second antidetonation mechanism (4) are including four fixed plate (401), four fixed plate (401) divide into two sets ofly altogether, and every group is two fixed plate (401) equal activity inlays locates inside corresponding fixed slot, and every group is two equal activity inlays between fixed plate (401) one side surface and is equipped with promotion butt slider (402), every equal fixedly connected with second spring (403) between the table wall in butt slider (402) and corresponding fixed slot one side.

2. The karst landform bridge earthquake-resistant support saddle as claimed in claim 1, wherein: the mounting groove has been seted up to trapezoidal piece (301) bottom, the inside activity of mounting groove is inlayed and is equipped with locating piece (305), diapire fixed connection in locating piece (305) bottom and the constant head tank, locating piece (305) top fixedly connected with bumper shock absorber (306).

3. The karst landform bridge earthquake-resistant support saddle as claimed in claim 2, wherein: the outer surfaces of two sides of the positioning block (305) are fixedly connected with L-shaped plates (307), and two reinforcing ribs (308) are fixedly connected between the outer surfaces of two sides of the L-shaped plates (307).

4. The karst landform bridge earthquake-resistant support saddle as claimed in claim 1, wherein: every two installation pipes (404), every of the equal fixedly connected with of fixed plate (401) one side surface installation pipe (404) inside equal activity of installation pipe (404) is inlayed and is equipped with erection column (405), eight erection column (405) divide into four groups altogether, and every group is two the equal fixed connection of table wall in the one end of erection column (405) and corresponding fixed slot one side.

5. The karst landform bridge earthquake-resistant support saddle according to claim 4, wherein: every equal fixedly connected with two third springs (406) between fixed plate (401) one side surface and the corresponding fixed slot one side interior table wall.

6. The karst landform bridge earthquake-resistant support saddle as claimed in claim 1, wherein: the outer surfaces of two sides of the support body (1) are fixedly connected with mounting rings (5).

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