CN218203854U

CN218203854U - Clamping piece type limiting supporting system with limiting sliding locking function for bridge

Info

Publication number: CN218203854U
Application number: CN202221666231.2U
Authority: CN
Inventors: 庞伟; 朱安静; 刘彬; 张博; 马骏; 李懋军; 贾俊峰; 边嘉琛
Original assignee: CSCEC Aecom Consultant Co Ltd
Current assignee: CSCEC Aecom Consultant Co Ltd
Priority date: 2022-06-30
Filing date: 2022-06-30
Publication date: 2023-01-03
Anticipated expiration: 2032-06-30

Abstract

The utility model discloses a bridge is with spacing supporting system of clip formula that has spacing slip locking function belongs to the bridge engineering field, has solved how to improve the anti-seismic performance of bridge and has guaranteed to shake repairable problem after. The utility model discloses a top slide, bottom slide and clip formula stop gear, the top slide links to each other with the roof beam body of bridge, the bottom slide links to each other with the pier, clip formula stop gear includes spacing section of thick bamboo and spacing stick, spacing stick links to each other with the top slide tip, spacing section of thick bamboo links to each other with the pier, spacing section of thick bamboo one end is equipped with the end shrouding, spacing stick can stretch into in the spacing section of thick bamboo by the spacing section of thick bamboo other end, spacing section of thick bamboo inner chamber is the loudspeaker form, spacing section of thick bamboo inner chamber stub end is towards the end shrouding, spacing section of thick bamboo inner wall is equipped with the relative spout in position, sliding connection has spacing clamping piece in the spout, be equipped with the spring between spacing clamping piece and the end shrouding. The utility model discloses can realize bearing capacity under the normal use state and the spacing slip locking dual function of atress in coordination of earthquake effect underbeam body, pier.

Description

Clamping piece type limiting supporting system with limiting sliding locking function for bridge

Technical Field

The utility model belongs to the bridge engineering field, concretely relates to bridge is with spacing supporting system of clip formula that has spacing slip locking function.

Background

With the continuous deepening of people's understanding of earthquake and disaster-causing mechanism thereof, the theory and method of bridge seismic fortification are continuously developed, from the early seismic design based on strength to the seismic design concept and method based on ductility, which are generally adopted by the standards of seismic design of domestic and foreign cities and highway bridges at present. The ductility-based anti-seismic design method allows bridge main body structures such as piers and the like to generate plastic hinge damage in a strong earthquake, and the bridge structures to generate larger deformation but not collapse damage. However, no matter before, during or after earthquake, the bridge pier is used as a main vertical bearing component, and once serious damage occurs, the bearing capacity of the bridge pier is seriously influenced. The plastic damage of the bridge pier generates larger residual deformation, so that the bridge is difficult to restore the function quickly after an earthquake, even difficult to restore, and the emergency rescue after the earthquake and the recovery of production and life after the disaster are seriously influenced. Particularly, in urban bridges, the traffic function cannot be recovered in time after an earthquake, so that the rapid recovery of the urban function after the earthquake is seriously influenced, and serious adverse social and economic influences are caused. Therefore, the ductile earthquake-resistant design method of the urban bridge with the goal of bridge collapse resistance as fortification can not meet the development requirement of a tough city, and the earthquake-resistant design of the bridge is gradually changed to the design of a tough bridge which is easy to repair and can be quickly recovered. Meanwhile, it needs to be seen that the vertical bearing function and the horizontal anti-seismic function of the bridge pier column in the strong seismic region are coupled together, and pier column reinforcement has to be greatly increased or seismic isolation supports/devices are adopted, so that the manufacturing cost is obviously increased. The tough bridge is a key node of tough urban traffic infrastructure, and the aim of the tough bridge is that under the action of a strong earthquake, the urban bridge not only needs to meet the basic performance goal of no collapse, but also needs to pay attention to the restorability and easy repairability of the bridge function after the earthquake, so that the more serious adverse social and economic effects caused by the loss of the urban bridge function are avoided. The development of a bridge structure with the functions of bearing, limiting, sliding and locking is an important way for realizing a tough bridge. The recoverable function and repairable toughness-based bridge is a new concept and a novel structural system of a high-performance bridge structure which is being developed at home and abroad, is also an important development direction of disaster prevention of toughness bridge engineering in the future, and has been focused by engineering circles at home and abroad at present.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a bridge is with spacing slide locking function's spacing supporting system of clip formula to solve the anti-seismic performance that how to improve the bridge and guarantee to shake repairable problem after.

The technical scheme of the utility model is that: a clip type limiting support system with a limiting sliding locking function for a bridge comprises an upper sliding plate, a lower sliding plate and a clip type limiting mechanism, wherein the upper sliding plate is connected with a beam body of the bridge, the lower sliding plate is connected with a bridge pier, and the upper sliding plate and the lower sliding plate are arranged oppositely and can slide oppositely; the clamping piece type limiting mechanism comprises a limiting cylinder and a limiting rod, the limiting rod is connected with the end part of the upper sliding plate, the limiting cylinder is connected with the pier, one end of the limiting cylinder is provided with an end sealing plate, the limiting rod can stretch into the limiting cylinder from the other end of the limiting cylinder, the inner cavity of the limiting cylinder is horn-shaped, the big head end of the inner cavity of the limiting cylinder faces the end sealing plate, the inner wall of the limiting cylinder is provided with a chute relative to the position, a limiting clamping piece is connected in the chute in a sliding mode, the opposite face of the limiting clamping piece relative to the position is parallel, and a spring is arranged between the limiting clamping piece and the end sealing plate.

As a further improvement of the utility model, the opposite surfaces of the spacing rod and the spacing clamping piece are provided with sawteeth.

As a further improvement, the end sealing plate is detachably connected with the limiting cylinder.

As a further improvement of the utility model, the end sealing plate is connected with the limiting cylinder through a bolt.

As a further improvement, the one end of spacing a section of thick bamboo of spacing stick orientation is equipped with the direction end, and the direction end reduces to the one end external diameter of spacing a section of thick bamboo of orientation by the one end of being connected with spacing stick gradually.

As a further improvement of the utility model, the clip type limiting mechanism is provided with a plurality of groups and is symmetrically arranged at the two ends of the upper sliding plate.

As a further improvement of the utility model, a slip sheet is arranged between the upper sliding plate and the lower sliding plate to reduce the frictional resistance and facilitate the sliding.

As the utility model discloses a further improvement is equipped with the mounting groove on the pier, the slide is connected in the mounting groove bottom down, and the upper slide is located mounting groove inner chamber, and spacing section of thick bamboo is connected at the mounting groove lateral wall.

As a further improvement of the utility model, a slide plate side slide bar is arranged between the upper slide plate side part and the inner side wall of the mounting groove.

As a further improvement, the upper sliding plate is connected with the beam body through an anchoring sleeve, and the lower sliding plate is connected with the bridge pier through an anchoring sleeve.

The utility model has the advantages that: the utility model discloses a reasonable design sliding pair's horizontal displacement can realize bearing capacity under the normal use state and the spacing slip locking dual function of the seismic action underbeam body, pier atress in coordination. During earthquake, the beam body generates horizontal displacement, and after limited sliding is performed between the lower sliding plate and the upper sliding plate, the limiting rod can horizontally push in the limiting cylinder to fix the beam body and the bridge pier, so that earthquake load is jointly borne. The utility model discloses simple structure is ingenious, and is practical reliable, and the cost is low with the maintenance cost, has fine popularization and application and worth, is applicable to various bridge engineering that have the demand of setting up defences of antidetonation.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a schematic structural view of a clip type limiting mechanism of the present invention;

FIG. 3 is a side view of FIG. 1;

fig. 4 is a schematic plan view of a middle bridge pier of the present invention.

In the figure: 1-a limit rod; 2-a limiting cylinder; 3-limiting clamping pieces; 4-a spring; 5-anchoring the sleeve; 6-bridge pier; 7-a beam body; 8-slide bar side slide bar; 9-a slip sheet; 10-a lower slide plate; 11-an upper sliding plate; 13-a chute; 14-end sealing plate; 15-saw teeth; 16-a guide tip; 17-mounting groove.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings.

As shown in fig. 1-4, a clip type limiting support system with a limiting sliding locking function for a bridge comprises an upper sliding plate 11, a lower sliding plate 10 and a clip type limiting mechanism, wherein the upper sliding plate 11 is connected with a beam body 7 of the bridge, the lower sliding plate 10 is connected with a bridge pier 6, and the upper sliding plate 11 and the lower sliding plate 10 are oppositely arranged and can relatively slide; clip formula stop gear includes spacing section of thick bamboo 2 and spacing stick 1, spacing stick 1 links to each other with 11 tip on the slide, spacing section of thick bamboo 2 links to each other with

pier

6, 2 one end in spacing section of thick bamboo are equipped with end shrouding 14, spacing stick 1 can stretch into spacing section of thick bamboo 2 by 2 other ends in spacing section of thick bamboo, spacing stick 1 is coaxial and the axis level with spacing section of

thick bamboo

2, 2 inner chambers in spacing section of thick bamboo are the loudspeaker form, 2 inner chamber major part ends in spacing section of thick bamboo are towards end shrouding 14, 2 inner walls in spacing section of thick bamboo are equipped with relative spout 13 in position, sliding connection has spacing clamping piece 3 in the spout 13, the opposite face of relative spacing clamping piece 3 in position is parallel, be equipped with spring 4 between spacing clamping piece 3 and the end shrouding 14.

The opposite surfaces of the limiting rod 1 and the limiting clamping piece 3 are provided with sawteeth 15.

The end closing plate 14 is detachably connected with the limiting cylinder 2. The end closing plate 14 is connected with the limiting cylinder 2 through bolts.

The limiting rod 1 is provided with a guide end head 16 towards one end of the limiting cylinder 2, and the outer diameter of the guide end head 16 is gradually reduced from one end connected with the limiting rod 1 to one end towards the limiting cylinder 2.

The clamping piece type limiting mechanisms are provided with a plurality of groups and are symmetrically arranged at two ends of the upper sliding plate 11.

A sliding sheet 9 is arranged between the upper sliding plate 11 and the lower sliding plate 10, and the sliding sheet 9 is connected with the lower sliding plate 10.

Be equipped with mounting groove 17 on pier 6, lower slide 10 is connected in the mounting groove 17 bottom, and upper slide 11 is located the mounting groove 17 inner chamber, and a spacing section of thick bamboo 2 is connected at the mounting groove 17 lateral wall. A sliding plate side sliding strip 8 is arranged between the side part of the sliding plate 11 and the inner side wall of the mounting groove 17.

The upper sliding plate 11 is connected with the beam body 7 through the anchoring sleeve 5, and the lower sliding plate 10 is connected with the pier 6 through the anchoring sleeve 5.

The utility model is made of steel.

The utility model discloses include following step during the installation:

A. when binding the reinforcing steel bars of the pier 6, positioning and installing the lower sliding plate 10, embedding the limiting cylinder 2, reserving the installation groove 17, and pouring the pier 6 concrete for maintenance;

B. a sliding sheet 9 is installed on the lower sliding sheet 10 and is coated with lubricating agents such as silicone grease, a sliding sheet side sliding strip 8 is installed on the side wall of the installation groove 17, and an upper sliding sheet 11 is installed on the sliding sheet 9;

C. when the reinforcing steel bars of the beam body 7 are bound, the upper sliding plate 11 is fixed, the position of the upper sliding plate 11 is ensured to be accurate, the position of the limiting cylinder 2 of the limiting rod 1 is opposite, and then the beam body 7 is poured for curing;

D. the limiting clip 3, the spring 4 and the fixed end sealing plate 14 are arranged.

Examples 1,

The size of the cross section of the pier 6 is 200cm multiplied by 200cm, the size of the lower sliding plate 10 is 100cm multiplied by 80cm, the size of the upper sliding plate 11 is 84cm multiplied by 79.6cm, the maximum sliding displacement of the sliding plate 11 in the sliding direction is 8cm, the free sliding displacement of the limiting rod 1 is set to be 3.5cm, and the end part of the upper sliding plate 11 cannot collide with the inner side wall of the installation groove 17 in the sliding process. The concrete of the pier 6 is marked with C40.

The utility model discloses can satisfy the functional requirement of bridge structures under normal use, solve the spacing slip locking problem of the girder body and the pier atress in coordination under the earthquake action again. The bridge is allowed to slide due to temperature and the like under the normal use state of the bridge, and the non-consolidated pier is converted into the consolidated pier under the action of an earthquake, so that the aim of jointly participating in stress of a plurality of piers is fulfilled.

Under normal use state, spacing clamping piece 3 is pushed to the tip of spacing section of thick bamboo 2 by spring 4, and the clear distance between the spacing clamping piece 3 that the position is relative is less than the external diameter of spacing stick 1, and the motion that the guide end 16 of spacing stick 1 tip can take place the small displacement to spacing clamping piece 3, satisfies the horizontal slip that roof beam body 7 produced under temperature and car braking force effect.

Under the earthquake effect, the horizontal displacement of the beam body 7 is great, spacing stick 1 slides and can obviously extrude the relative spacing clamping piece 3 in position this moment, force spacing clamping piece 3 to move to the big head end of spacing section of thick bamboo 2 along spout 13, spacing clamping piece 3 interval crescent, until can holding spacing stick 1, spacing stick 1 inserts spacing clamping piece 3 clearance, under the thrust effect of spring 4, spacing clamping piece 3 presss from both sides spacing stick 1 tightly, spacing stick 1 can't return, thereby realize that beam body 7 and pier 6 are fixed, undertake earthquake load jointly. The opposite surfaces of the limiting rod 1 and the limiting clamping piece 3 are provided with sawteeth 15 to increase the clamping force.

After the earthquake, the end sealing plate 14 can be detached, the spring 4 and the limiting clamping piece 3 are loosened, then the limiting rod 1 is reset and maintained, the limiting clamping piece 3 is reinstalled, and the supporting system is restored to a normal use state so as to be suitable for horizontal displacement of the beam body generated under the action of temperature and automobile braking force.

The utility model discloses based on recoverable function and repairable toughness bridge theory, this is the new theory of high performance bridge structure and the novel structural system that are developing at home and abroad, also is the important development direction of future toughness bridge engineering disaster prevention.

Claims

1. The utility model provides a bridge is with spacing supporting system of clip formula that has spacing slip locking function which characterized in that: the bridge comprises an upper sliding plate (11), a lower sliding plate (10) and a clip type limiting mechanism, wherein the upper sliding plate (11) is connected with a beam body (7) of a bridge, the lower sliding plate (10) is connected with a bridge pier (6), and the upper sliding plate (11) and the lower sliding plate (10) are arranged oppositely and can slide relatively;

the clamping piece type limiting mechanism comprises a limiting cylinder (2) and a limiting rod (1), the limiting rod (1) is connected with the end part of an upper sliding plate (11), the limiting cylinder (2) is connected with a pier (6), one end of the limiting cylinder (2) is provided with an end sealing plate (14), the limiting rod (1) can be stretched into the limiting cylinder (2) from the other end of the limiting cylinder (2), the inner cavity of the limiting cylinder (2) is horn-shaped, the large head end of the inner cavity of the limiting cylinder (2) faces the end sealing plate (14), the inner wall of the limiting cylinder (2) is provided with a sliding groove (13) with a relative position, the sliding groove (13) is internally connected with a limiting clamping piece (3) in a sliding mode, the opposite faces of the limiting clamping piece (3) with the relative position are parallel, and a spring (4) is arranged between the limiting clamping piece (3) and the end sealing plate (14).

2. The clip type position limiting support system with a position limiting sliding locking function for a bridge apparatus according to claim 1, wherein: the opposite surfaces of the limiting rod (1) and the limiting clamping piece (3) are provided with sawteeth (15).

3. The clip type position limiting support system with a position limiting sliding locking function for the bridge according to claim 1 or 2, wherein: the end sealing plate (14) is detachably connected with the limiting cylinder (2).

4. The clip type position limiting support system with a position limiting sliding locking function for a bridge according to claim 3, wherein: the end sealing plate (14) is connected with the limiting cylinder (2) through a bolt.

5. The clip type limit support system with the limit sliding locking function for the bridge as claimed in claim 4, wherein: spacing stick (1) is equipped with direction end (16) towards the one end of spacing section of thick bamboo (2), and direction end (16) reduce to the one end external diameter towards spacing section of thick bamboo (2) by the one end of being connected with spacing stick (1) gradually.

6. The clip type position limiting support system with a position limiting sliding locking function for a bridge apparatus according to claim 5, wherein: the clamping piece type limiting mechanisms are provided with a plurality of groups and are symmetrically arranged at two ends of the upper sliding plate (11).

7. The clip type position limiting support system with a position limiting sliding locking function for a bridge according to claim 6, wherein: a sliding sheet (9) is arranged between the upper sliding plate (11) and the lower sliding plate (10).

8. The clip type position limiting support system with a position limiting sliding locking function for a bridge apparatus according to claim 7, wherein: be equipped with mounting groove (17) on pier (6), slide (10) down is connected in mounting groove (17) bottom, it is located mounting groove (17) inner chamber to go up slide (11), a spacing section of thick bamboo (2) are connected at mounting groove (17) lateral wall.

9. The clip type position limiting support system with a position limiting sliding locking function for a bridge according to claim 8, wherein: a sliding plate side sliding strip (8) is arranged between the side part of the upper sliding plate (11) and the inner side wall of the mounting groove (17).

10. The clip type position limiting support system with a position limiting sliding locking function for a bridge apparatus according to claim 9, wherein: the upper sliding plate (11) is connected with the beam body (7) through the anchoring sleeve (5), and the lower sliding plate (10) is connected with the pier (6) through the anchoring sleeve (5).