CN114892500A - A kind of load-bearing deformation mechanism for bridge and using method thereof - Google Patents

Abstract

The invention discloses a load-bearing deformation mechanism for a bridge and a method of using the same, comprising a bridge body. The bottom surface of the bridge body is uniformly provided with a plurality of chassis, the bottom of the chassis is provided with support beams, the bottom surface of the chassis is provided with an outer ring, and the bottom surface of the chassis is provided with an outer ring. There is a circular groove on the top surface, a load-bearing column is arranged between the first sleeve and the second sleeve, and the load-bearing column is connected with the bridge body and the support beam through the load-bearing mechanism; the bottom surface of the chassis is provided with a number of pre-embedded columns, each The bottom end of each embedded column is provided with a fixed plate, the top of the outer side of the support beam is distributed with a number of channel steels, and each channel steel is provided with a sliding plate at the inner bottom. the fixing plate connection. The invention solves the problem of poor load-bearing effect of the bridge's load-bearing deformation mechanism. Through the coordinated use of various structures, the bridge's own gravity and the external force received are evenly dispersed in the support beam, which further improves the load-bearing stability of the bridge and effectively prolongs the life of the bridge.

Description

A kind of load-bearing deformation mechanism for bridge and using method thereof

technical field

The invention belongs to the technical field of bridge load-bearing, and in particular relates to a load-bearing deformation mechanism for bridges and a use method thereof.

Background technique

With the development of railway, road and bridge construction, bridges are developing towards larger-span flexible structures to meet the needs of corresponding construction. The primary solution for long-span bridges is the safety and stability of the structure under the aerodynamic and driving dynamics response. And the requirements for personal safety and comfort under high-speed driving conditions.

The existing bridges have the following shortcomings: 1. The bridge lacks a special load-bearing deformation mechanism, so that various gaps will appear in the bridge for a long time, so the long-term load-bearing deformation may cause the bridge to collapse; 2. The existing load-bearing deformation mechanism Only a simple shock absorption effect can be performed on the bridge, and the gravity of the bridge cannot be evenly dispersed on the support beam, which makes the load-bearing effect of the bridge poor.

SUMMARY OF THE INVENTION

The purpose of the present invention is to propose a load-bearing deformation mechanism for bridges in order to solve the disadvantage of poor load-bearing effect of the bridge load-bearing deformation mechanism in the prior art.

In order to solve the problem of poor load-bearing effect of the bridge load-bearing deformation mechanism existing in the prior art, the present invention adopts the following technical solutions:

A load-bearing deformation mechanism for a bridge, comprising a bridge body, a plurality of chassis are distributed on the bottom surface of the bridge body, support beams are provided below the chassis, an outer ring is provided on the bottom surface of the chassis, and the bottom surface of the chassis is provided with a plurality of chassis. A first sleeve is arranged in the middle, a circular groove is arranged on the top surface of the support beam, and a second sleeve is arranged in the middle of the inner bottom wall of the circular groove. A load-bearing column is arranged between the cylinders, and the load-bearing column is connected with the bridge body and the support beam through the load-bearing mechanism;

Several pre-embedded columns are evenly distributed on the outer side of the bottom surface of the chassis, the bottom end of each of the pre-embedded columns is provided with a fixing plate, and the top of the outer side of the support beam is evenly distributed with a number of channel steels. The inner bottom of the channel steel is provided with sliding plates, and each of the sliding plates is connected with the corresponding fixed plate through a shock absorbing mechanism.

Preferably, both ends of the load-bearing column are slidably inserted into the corresponding first and second sleeves, respectively, and both end surfaces of the load-bearing column are provided with load-bearing double springs, and two of the load-bearing double springs are provided. The outer ends are respectively fixed with the bottom wall of the chassis and the inner bottom wall of the circular groove.

Preferably, a plurality of first transverse rods are evenly distributed on the annular inner wall of the outer ring, the inner end of each of the first transverse rods is fixedly connected with the outer wall of the first sleeve, and each of the first transverse rods is fixedly connected to the outer wall of the first sleeve. A first sliding cylinder is sleeved in the middle of the rod, and a first spring is sleeved on the outer section of each of the first transverse rods.

Preferably, a plurality of second transverse rods are evenly distributed on the annular inner wall of the circular groove, the inner end of each second transverse rod is fixedly connected with the outer wall of the second sleeve, and each of the second transverse rods is fixedly connected to the outer wall of the second sleeve. A second sliding cylinder is sleeved in the middle of the two cross bars, and a second spring is sleeved on the outer section of each of the second cross bars.

Preferably, the load-bearing mechanism includes a load-bearing cylinder and a hinge rod, the middle of the load-bearing column is sleeved with a load-bearing cylinder, and the annular outer side surface of the load-bearing cylinder is evenly provided with a number of H-shaped lugs, each of the H-shaped ears The two openings of the seat are provided with hinge rods, the outer ends of the hinge rods located above are all hinged with the middle part of the corresponding first sliding cylinder, and the outer ends of the hinge rods located below are all connected to the corresponding second sliding cylinder. The middle of the barrel is hinged.

Preferably, the shock absorbing mechanism includes a short board, a long board and a side board, a short board and a long board are respectively provided on both sides of the top surface of the sliding board, and the opposite sides of the short board and the long board are respectively connected with the channel steel. The inner side walls of the fixed plate are slidably connected; a pair of side plates are arranged on both sides of the bottom surface of the fixed plate, and the opposite sides of the pair of side plates are respectively slidably connected with the inner side walls of the channel steel.

Preferably, a first shock-absorbing pin is arranged in the middle of the top surface of the sliding plate, a connecting plate is arranged on the inner side of one of the side plates, and a second shock-absorbing pin is arranged in the middle of the bottom surface of the connecting plate. A shock-absorbing spring is arranged between a shock-absorbing pin and the second shock-absorbing pin, and both ends of the shock-absorbing spring are respectively sleeved on the first shock-absorbing pin and the second shock-absorbing pin.

Preferably, the inner side of one of the side plates is provided with a second rack, the side wall of the other side plate is provided with a rectangular sliding hole, and the top of the long plate is slidably engaged in the rectangular sliding hole, And the inner side of the long board is provided with a first rack.

Preferably, a fixed bearing is arranged in the middle and upper part of the inner side of the channel steel, a fixed shaft is inserted inside the fixed bearing, a linkage gear is sleeved on the outer end of the fixed shaft, and both sides of the linkage gear They are respectively meshed with the first rack and the second rack.

The present invention also proposes a method for using the load-bearing deformation mechanism for bridges, comprising the following steps:

Step 1: The gravity of the bridge body is applied to the chassis, the first sleeve and several pre-embedded columns, and the first sleeve moves toward the second sleeve along the load-bearing column, so that the two ends of the load-bearing column face the first sleeve respectively. , The second sleeve slides and drives the load-bearing double spring to compress;

In step 2, the distance between the load-bearing cylinder and the first sleeve and the second sleeve is close, and under the action of the hinge rod, the first sliding cylinder is driven to slide along the first horizontal rod, so that the first spring is compressed, and the first sliding cylinder is synchronously driven. The second sliding cylinder slides along the second crossbar and compresses the second spring, and under the combined action of the first spring, the second spring and the load-bearing double spring, the weight of the middle of the chassis is evenly dispersed through the load-bearing cylinder and the load-bearing column on the top surface of the support beam;

Step 3, the gravity around the chassis is dispersed on several pre-embedded columns, and the pre-embedded columns drive a pair of side plates to slide down along the channel steel side walls, so that the second rack meshes to drive the linkage gear and the fixed shaft to rotate;

Step 4, the interlocking gear meshing drives the first rack and the long plate to slide upward along the rectangular sliding hole, and simultaneously drives the sliding plate and the short plate to slide upward along the inner wall of the channel steel, so that the distance between the connecting plate and the sliding plate gradually decreases;

Step 5: The distance between the first shock-absorbing pin and the second shock-absorbing pin is synchronously reduced, and the shock-absorbing spring is driven to compress and deform. Under the reaction of the shock-absorbing spring, the connecting plate, the side plate and the fixed plate are driven to slide upward, and the sliding plate is driven. Slide down, and drive the embedded column to maintain a balanced state, so that the gravity around the chassis is evenly distributed around the support beam.

Compared with the prior art, the beneficial effects of the present invention are:

1. In the present invention, the gravity of the bridge body is exerted on the chassis, and under the combined action of the first spring, the second spring and the load-bearing double spring, the gravity of the middle of the chassis is evenly dispersed on the support beam through the load-bearing cylinder and the load-bearing column. On the top surface, to avoid the phenomenon of various gaps appearing on the bridge under long-term stress;

2. In the present invention, the gravity around the chassis is dispersed on several pre-embedded columns, and under the reaction of the shock-absorbing spring, the pre-embedded columns are driven to maintain a balanced state, so that the gravity around the chassis is evenly distributed around the support beam, effectively Enhance the shock absorption and load-bearing effect of the bridge;

To sum up, the present invention solves the problem of poor load-bearing effect of the load-bearing deformation mechanism of the bridge. Through the coordinated use of various structures, the weight of the bridge itself and the external force it receives are evenly dispersed in the support beam, which further improves the load-bearing stability of the bridge. , effectively prolonging the service life of the bridge.

Description of drawings

The accompanying drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the attached image:

Fig. 1 is the front view of the present invention;

Fig. 2 is the front internal sectional view of the present invention;

Fig. 3 is the front view external sectional view of the present invention;

Fig. 4 is the enlarged view of A place in Fig. 3 of the present invention;

5 is a top plan view of the support beam of the present invention;

6 is a schematic exploded view of the shock absorbing mechanism of the present invention;

7 is a schematic diagram of a method of use of the present invention;

Serial number in the figure: bridge body 1, chassis 11, outer ring 12, first sleeve 13, first crossbar 14, first sliding cylinder 15, support beam 2, second sleeve 21, second crossbar 22, first Two sliding cylinders 23, load-bearing columns 24, load-bearing cylinders 25, H-shaped lugs 26, hinge rods 27, channel steel 3, sliding plates 31, short plates 32, long plates 33, first rack 34, linkage gear 35, pre- Buried column 4 , fixed plate 41 , side plate 42 , second rack 43 , connecting plate 44 .

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments.

Embodiment 1: In order to improve the load-bearing effect of the load-bearing deformation mechanism of the bridge, this embodiment provides a load-bearing deformation mechanism for bridges, see Figures 1-6, specifically, including a bridge body 1, which is a horizontal beam , the bottom surface of the bridge body 1 is evenly provided with a plurality of chassis 11 arranged at equal distances, the bottom of the chassis 11 is provided with a vertically placed support beam 2, the bottom of the support beam 2 is pre-buried below the ground, and the bottom surface of the chassis 11 is provided with concentric The fixed outer ring 12, the bottom surface of the chassis 11 is provided with a concentrically fixed first sleeve 13, the top surface of the support beam 2 is provided with a circular groove, and the inner diameter of the circular groove is the same as that of the outer ring 12. , the middle of the inner bottom wall of the circular groove is provided with a concentrically fixed second sleeve 21, a load-bearing column 24 is arranged between the first sleeve 13 and the second sleeve 21, and the two ends of the load-bearing column 24 slide respectively It is inserted into the corresponding first sleeve 13 and the second sleeve 21 . Both ends of the bearing column 24 are provided with concentric bearing double springs. The outer ends of the two bearing double springs are respectively connected to the bottom wall of the chassis 11 . , The inner bottom wall of the circular groove is fixedly connected, and the load-bearing column 24 is connected with the bridge body 1 and the supporting beam 2 through the load-bearing mechanism; the outer side of the bottom surface of the chassis 11 is evenly distributed with a number of circularly arranged pre-embedded columns 4, each pre-embedded The bottom end of the column 4 is provided with a horizontally fixed fixing plate 41, the top of the outer side of the support beam 2 is distributed with a number of circularly arranged channel steels 3, and the inner bottom of each channel steel 3 is provided with up and down sliding connections. Sliding plates 31, each sliding plate 31 is connected to the corresponding fixed plate 41 through a shock absorbing mechanism; the gravity of the bridge body 1 is exerted on the chassis 11, the first sleeve 13 and several pre-embedded columns 4, the first sleeve 13 The bearing column 24 is moved toward the second sleeve 21 , so that the two ends of the bearing column 24 slide toward the first sleeve 13 and the second sleeve 21 respectively, and drive the bearing double spring to compress.

In the specific implementation process, as shown in FIG. 2 and FIG. 5 , a plurality of circularly arranged first cross bars 14 are evenly distributed on the annular inner wall of the outer ring 12 , and the inner end of each first cross bar 14 is connected with the first cross bar 14 . The outer wall of a sleeve 13 is fixedly connected, the middle part of each first cross bar 14 is sleeved with a first sliding cylinder 15, and the outer section of each first cross bar 14 is sleeved with a first spring; The annular inner wall of the groove is evenly provided with a plurality of second transverse rods 22 arranged in a circle, the inner end of each second transverse rod 22 is fixedly connected with the outer wall of the second sleeve 21, and each second transverse rod 22 A second sliding cylinder 23 is sleeved in the middle of each of the second cross bars 22, and a second spring is sleeved on the outer section of each second cross bar 22; under the action of the hinge rod 27, the first sliding cylinder 15 is driven along the first The cross bar 14 slides to compress the first spring, synchronously drives the second sliding cylinder 23 to slide along the second cross bar 22, and compresses the second spring;

The load-bearing mechanism includes a load-bearing cylinder 25 and a hinge rod 27. The middle of the load-bearing column 24 is sleeved with a concentrically fixed load-bearing cylinder 25. The load-bearing cylinder 25 is a hollow cylinder with an outer polygonal shape and an inner circular shape. A number of H-shaped lugs 26 arranged in a circle are arranged, and two openings of each H-shaped lug 26 are provided with living hinged hinge rods 27, and the outer ends of each hinge rod 27 located above correspond to The middle part of the first sliding cylinder 15 is hinged, and the outer end of each hinge rod 27 located below is hinged with the middle part of the corresponding second sliding cylinder 23; the bearing cylinder 25 is relative to the first sleeve 13, the second sleeve The distance between the cylinders 21 is close, and under the combined action of the first spring, the second spring and the load-bearing double spring, the middle gravity of the chassis 11 is evenly dispersed on the top surface of the support beam 2 through the load-bearing cylinder 25 and the load-bearing column 24 .

Embodiment 2: In Embodiment 1, there is also the problem that the gravity around the chassis 11 cannot be evenly dispersed on the support beam 2, therefore, on the basis of Embodiment 1, this embodiment also includes:

In the specific implementation process, as shown in FIG. 3 , FIG. 4 and FIG. 6 , the damping mechanism includes a short board 32 , a long board 33 , and a side board 42 , and two sides of the top surface of the sliding board 31 are respectively provided with vertical fixed short boards 32 . The opposite sides of the plate 32, the long plate 33, the short plate 32 and the long plate 33 are slidingly connected with the inner side wall of the channel steel 3 respectively; the bottom surface of the fixed plate 41 is provided with a pair of vertically fixed side plates 42, a pair of side plates The opposite sides of 42 are respectively slidably connected with the inner side walls of the channel steel 3; the middle of the top surface of the sliding plate 31 is provided with a first shock-absorbing pin, and the inner side of a side plate 42 is provided with a horizontally fixed connecting plate 44, and the connecting plate 44 A second shock-absorbing pin is arranged in the middle of the bottom surface of the shock-absorbing pin, a shock-absorbing spring is arranged between the first shock-absorbing pin and the second shock-absorbing pin, and both ends of the shock-absorbing spring are respectively sleeved on the first shock-absorbing pin and the second shock-absorbing pin. The distance between the first shock-absorbing pin and the second shock-absorbing pin decreases synchronously, and drives the shock-absorbing spring to compress and deform. Under the reaction of the shock-absorbing spring, it drives the connecting plate 44, the side plate 42 and the fixed plate 41 to slide upward. , drive the sliding plate 31 to slide down, and drive the embedded column 4 to maintain a balanced state, so that the gravity around the chassis 11 is evenly distributed around the support beam 2 .

The inner side of one side plate 42 is provided with a second rack 43, the side wall of the other side plate 42 is provided with a laterally penetrating rectangular sliding hole, and the top of the long plate 33 is slidably engaged in the rectangular sliding hole, and The inner side of the long plate 33 is provided with a first rack 34; the middle and upper part of the inner side of the channel steel 3 is provided with a fixed bearing, a fixed shaft is inserted inside the fixed bearing, and the outer end of the fixed shaft is sleeved with a concentric fixed connection. The linkage gear 35, the two sides of the linkage gear 35 are meshed with the first rack 34 and the second rack 43 respectively; the gravity around the chassis 11 is dispersed on several pre-embedded columns 4, and the pre-embedded columns 4 drive a pair of side plates 42 Slide down along the side wall of the channel steel 3, so that the second rack 43 meshes to drive the linkage gear 35 and the fixed shaft to rotate; the linkage gear 35 meshes to drive the first rack 34 and the long plate 33 to slide up along the rectangular sliding hole, The sliding plate 31 and the short plate 32 are synchronously driven to slide upward along the inner wall of the channel steel 3 , so that the distance between the connecting plate 44 and the sliding plate 31 is gradually reduced.

Embodiment three: refer to Fig. 7, concretely, the working principle and operation method of the present invention are as follows:

In step 1, the gravity of the bridge body 1 is exerted on the chassis 11 , the first sleeve 13 and several pre-embedded columns 4 . The ends slide toward the first sleeve 13 and the second sleeve 21 respectively, and drive the load-bearing double springs to compress;

In step 2, the distance between the load-bearing cylinder 25 and the first sleeve 13 and the second sleeve 21 is close, and under the action of the hinge rod 27, the first sliding cylinder 15 is driven to slide along the first cross bar 14, so that the first The spring compresses, synchronously drives the second sliding cylinder 23 to slide along the second cross bar 22, compresses the second spring, and under the combined action of the first spring, the second spring and the load-bearing double spring, the middle The gravity is evenly dispersed on the top surface of the support beam 2 through the load-bearing cylinder 25 and the load-bearing column 24;

In step 3, the gravity around the chassis 11 is dispersed on several pre-embedded columns 4, and the pre-embedded columns 4 drive a pair of side plates 42 to slide down along the side walls of the channel steel 3, so that the second rack 43 engages to drive the linkage gear 35 and fixed shaft for rotation;

Step 4: The interlocking gear 35 engages and drives the first rack 34 and the long plate 33 to slide upward along the rectangular sliding hole, and simultaneously drives the sliding plate 31 and the short plate 32 to slide upward along the inner wall of the channel steel 3, so that the connecting plate 44 and the sliding The spacing between the plates 31 is gradually reduced;

Step 5: The distance between the first shock-absorbing pin and the second shock-absorbing pin is reduced synchronously, and the shock-absorbing spring is driven to compress and deform. The sliding plate 31 is driven to slide downward, and the embedded column 4 is driven to maintain a balanced state, so that the gravity around the chassis 11 is evenly distributed around the support beam 2 .

The invention solves the problem of poor load-bearing effect of the load-bearing deformation mechanism of the bridge. Through the coordinated use of various structures, the gravity of the bridge itself and the external force it receives are evenly dispersed in the support beam, which further improves the load-bearing stability of the bridge and effectively prolongs the life of the bridge. life of the bridge.

The above description is only a preferred embodiment of the present invention, but the protection scope of the present invention is not limited to this. The equivalent replacement or change of the inventive concept thereof shall be included within the protection scope of the present invention.

Claims (10)

1. A load-bearing deformation mechanism for a bridge, comprising a bridge body (1), characterized in that: the bottom surface of the bridge body (1) is uniformly provided with a plurality of chassis (11), and the bottom of the chassis (11) is provided with A support beam (2), the bottom surface of the chassis (11) is provided with an outer ring (12), the middle of the bottom surface of the chassis (11) is provided with a first sleeve (13), the top of the support beam (2) is provided The surface is provided with a circular groove, the inner bottom wall of the circular groove is provided with a second sleeve (21) in the middle, and a second sleeve (21) is provided between the first sleeve (13) and the second sleeve (21). a load-bearing column (24), the load-bearing column (24) is connected with the bridge body (1) and the support beam (2) through a load-bearing mechanism; A plurality of pre-embedded columns ( 4 ) are evenly distributed on the outer side of the bottom surface of the chassis ( 11 ), the bottom end of each of the pre-embedded columns ( 4 ) is provided with a fixing plate ( 41 ), and the support beams ( 2 ) A number of channel steels (3) are evenly distributed on the top of the outer side of the steel channel, each of the channel steels (3) is provided with a sliding plate (31) at the inner bottom, and each of the sliding plates (31) is connected to the corresponding channel through a damping mechanism. connected to the fixing plate (41). 2. A load-bearing deformation mechanism for bridges according to claim 1, characterized in that: the two ends of the load-bearing column (24) are respectively slidably inserted in the corresponding first sleeve (13), the second sleeve In the cylinder (21), both end surfaces of the load-bearing column (24) are provided with load-bearing double springs, and the outer ends of the two load-bearing double springs are respectively connected with the bottom wall of the chassis (11) and the inner part of the circular groove. Bottom wall fixed. 3 . The load-bearing deformation mechanism for bridges according to claim 1 , wherein a plurality of first cross bars ( 14 ) are evenly distributed on the annular inner wall of the outer ring ( 12 ). The inner ends of the transverse rods (14) are fixedly connected with the outer wall of the first sleeve (13), and the middle part of each of the first transverse rods (14) is sleeved with a first sliding cylinder (15), and each A first spring is sleeved on the outer section of the first transverse rod (14). 4. A load-bearing deformation mechanism for bridges according to claim 3, characterized in that: a plurality of second transverse rods (22) are evenly distributed on the annular inner wall of the circular groove, and each of the second transverse rods (22). The inner end of the rod (22) is fixedly connected with the outer wall of the second sleeve (21), the middle part of each of the second transverse rods (22) is sleeved with a second sliding cylinder (23), and each Second springs are sleeved on the outer sections of the second transverse rods (22). 5. A load-bearing deformation mechanism for bridges according to claim 4, wherein the load-bearing mechanism comprises a load-bearing cylinder (25) and a hinge rod (27), and the middle of the load-bearing column (24) is sleeved with a A bearing cylinder (25), a plurality of H-shaped ear seats (26) are evenly distributed on the annular outer side surface of the bearing cylinder (25), and two openings of each of the H-shaped ear seats (26) are provided with hinge rods (27), the outer ends of the upper hinge rods (27) are all hinged with the middle of the corresponding first sliding cylinder (15), and the outer ends of the lower hinge rods (27) are all connected to the corresponding second The middle part of the sliding cylinder (23) is hinged. 6 . The load-bearing deformation mechanism for bridges according to claim 1 , wherein the damping mechanism comprises a short plate (32), a long plate (33), and a side plate (42), and the sliding plate ( The two sides of the top surface of 31) are respectively provided with short plates (32) and long plates (33), and the opposite sides of the short plates (32) and long plates (33) are respectively slidably connected with the inner side walls of the channel steel (3). A pair of side plates (42) are provided on both sides of the bottom surface of the fixed plate (41), and the opposite sides of the pair of side plates (42) are respectively slidably connected with the inner side walls of the channel steel (3). 7. A load-bearing deformation mechanism for bridges according to claim 6, characterized in that: a first shock-absorbing pin is provided in the middle of the top surface of the sliding plate (31), and the inner side of a side plate (42) is provided with a first shock-absorbing pin. A connecting plate (44) is arranged on the side surface, a second shock-absorbing pin is arranged in the middle of the bottom surface of the connecting plate (44), and a shock-absorbing spring is arranged between the first shock-absorbing pin and the second shock-absorbing pin. Both ends of the shock-absorbing spring are respectively sleeved on the first shock-absorbing pin and the second shock-absorbing pin. 8 . The load-bearing deformation mechanism for bridges according to claim 6 , wherein a second rack ( 43 ) is provided on the inner side of one of the side plates ( 42 ), and the other side plate ( 42 ) is provided with a second gear rack ( 43 ). The side wall of (42) is provided with a rectangular sliding hole, the top of the long plate (33) is slidably engaged in the rectangular sliding hole, and the inner side of the long plate (33) is provided with a first rack (34) . 9. A load-bearing deformation mechanism for bridges according to claim 8, characterized in that: a fixed bearing is arranged in the middle and upper part of the inner side of the channel steel (3), and a fixed shaft is inserted in the inside of the fixed bearing, A linkage gear (35) is sleeved on the outer end of the fixed shaft, and both sides of the linkage gear (35) are meshed and connected with the first rack (34) and the second rack (43) respectively. 10. The method for using a load-bearing deformation mechanism for a bridge according to any one of claims 1-9, wherein the method comprises the following steps: In step 1, the gravity of the bridge body (1) is applied to the chassis (11), the first sleeve (13) and several pre-embedded columns (4). The two sleeves (21) are brought closer together, so that the two ends of the load-bearing column (24) slide toward the first sleeve (13) and the second sleeve (21) respectively, and drive the load-bearing double springs to compress; In step 2, the bearing cylinder (25) is close to the distance between the first sleeve (13) and the second sleeve (21), and under the action of the hinge rod (27), the first sliding cylinder (15) is driven along the first sleeve (15). A crossbar (14) slides to compress the first spring, synchronously drives the second sliding cylinder (23) to slide along the second crossbar (22), compresses the second spring, and compresses the first spring and the second Under the combined action of the two springs and the load-bearing double springs, the central gravity of the chassis (11) is uniformly dispersed on the top surface of the support beam (2) through the load-bearing cylinder (25) and the load-bearing column (24); In step 3, the gravity around the chassis (11) is dispersed on several pre-embedded columns (4), and the pre-embedded columns (4) drive a pair of side plates (42) to slide down along the side walls of the channel steel (3), so that the first The meshing of the two racks (43) drives the linkage gear (35) and the fixed shaft to rotate; Step 4, the interlocking gear (35) meshes and drives the first rack (34) and the long plate (33) to slide upward along the rectangular sliding hole, and simultaneously drives the sliding plate (31) and the short plate (32) along the channel steel (3) ) slides upward, so that the distance between the connecting plate (44) and the sliding plate (31) is gradually reduced; Step 5, the distance between the first shock-absorbing pin and the second shock-absorbing pin is reduced synchronously, and drives the shock-absorbing spring to compress and deform, and under the reaction of the shock-absorbing spring, drives the connecting plate (44), the side plate (42) and the fixing plate (41) Slide up, drive the sliding plate (31) to slide down, and drive the embedded column (4) to maintain a balanced state, so that the gravity around the chassis (11) is evenly distributed around the support beam (2).

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