CN217733721U - Multi-friction damping energy dissipation reset anti-seismic stop block structure - Google Patents

Abstract

The utility model relates to a bridge antidetonation technical field especially relates to a many friction damping power consumption antidetonation dog structure that resets, including steel corbel, friction drum, wave form inner wall, first collision rubber, steel spring and straight-bar sliding structure, the wave form inner wall is fixed in fixed roof upper portion, the steel baffle curb plate that is located fixed roof both sides is connected with the steel baffle web in the outside through steel spring; the fixed support is fixed at the bottom of the main beam through a bolt, a rotating support is fixed at the bottom of the fixed support, the outer ends of the straight rod sliding structures are fixed on the two sides above the inner wall of the steel baffle side plate respectively, the inner ends of the straight rod sliding structures are connected with the rotating support through a second steel spring, and the friction cylinder is connected with the lower portion of the rotating support through a connecting rod. The utility model discloses can restrict the too big displacement in the same direction as the bridge between the roof beam body and the pier, prevent to take place the roof beam phenomenon of falling, rely on the friction of buffering power consumption device and the energy of deformation buffering and consumption some earthquake input.

Description

A multi-friction damping energy-dissipating reset anti-seismic stopper structure

technical field

The utility model relates to the field of bridge anti-seismic technology, in particular to a multi-friction damping energy consumption reset anti-seismic block structure.

Background technique

The construction of roads and bridges is extremely important to the development of a region. The bridge is also the hub of the traffic route. Once an accident occurs on the bridge, it will produce a series of economic and social butterfly effects. Therefore, the safety performance and stability of the bridge are worth discussing.

The main damages of the bridge structure in the earthquake include the shedding of the upper beam body, the damage of the support, the cracking of the pier column of the pile foundation, and the collision damage of the beam body. At present, most of the bridges in our country take measures to resist earthquakes, which is to install reinforced concrete stoppers on both sides of the top of the pier cap beam. This method can limit the transverse displacement of the upper girder to a certain extent, but it is easy to cause local damage during collisions. damage, and does not have much constraint on the displacement along the bridge.

Therefore, it is necessary to design and develop a new type of bridge anti-seismic block structure, which can not only effectively exert the anti-seismic effect during earthquakes, but also limit the displacement of the upper girder body of the bridge along the bridge direction, and at the same time reduce the degree of self-damage when the block acts.

Just based on the above reasons, the utility model proposes a multi-friction damping energy consumption reset anti-seismic block structure.

Utility model content

The purpose of this utility model is to overcome the deficiencies of the prior art and provide a multi-friction damping energy-consuming reset anti-seismic block structure, which can limit the excessive displacement between the beam body and the bridge pier along the direction of the bridge, and prevent the phenomenon of falling beams. The friction and deformation of the buffer energy-dissipating device buffer and consume part of the energy input by the earthquake, and absorb the energy of the earthquake through the deformation of the springs between the components and the collision deformation of the collision rubber, so as to reduce the damage of the bridge as much as possible, and after the earthquake With the strengthening of the recovery function of the buffer energy-dissipating device and the torsion spring, the stopper can return to its original form and continue to work.

In order to realize the purpose of the utility model, the technical scheme that the utility model adopts is:

The utility model discloses a multi-friction damping energy consumption reset anti-seismic block structure, which comprises a steel corbel, a friction cylinder, a wave-shaped inner wall, a first collision rubber, a steel spring and a straight rod sliding structure. The steel corbel passes through a steel corbel. The corbel bolts are fixed above the side wall of the pier, and the fixed top plate is set on the top of the steel corbel. The corrugated inner wall is fixed on the top of the fixed top plate, and the steel baffle side plates on both sides of the fixed top plate are connected to the outer side by steel springs. The steel baffle webs are connected; the fixed support is fixed to the bottom of the main beam through bolts, the bottom of the fixed support is fixed with a rotating support, and the outer ends of the two straight rod sliding structures are respectively fixed to the steel bars on both sides. Above the inner wall of the side plate of the baffle, its inner end is connected to the rotating support through the second steel spring, and the friction cylinder is connected to the bottom of the rotating support through a connecting rod.

The straight rod sliding structure includes a connecting block, a sliding straight rod, a first collision rubber and a second collision rubber. The end is connected with the outer end of the sliding straight rod, and the inner end of the sliding straight rod is connected with the rotating support through the second steel spring; the first collision rubber and the second collision rubber are semi-cylindrical The structure is fixed on the bottom of the outer end of the connecting block; the lowest point of the second collision rubber is lower than the lowest point of the first collision rubber.

The rotating support is fixed on the bottom of the fixed support in an inverted triangle bracket structure; the two friction cylinders are respectively connected to the bottom of the rotating support through connecting rods, and the top of the connecting rod is connected to the rotating support. Hinged; the surface of the friction cylinder is equidistantly provided with several semi-cylindrical friction blocks.

The steel corbel includes a steel corbel top plate, a steel corbel side plate, a steel corbel web and a steel corbel bottom plate, and the steel corbel side plate is fixedly connected to the side wall of the pier by a number of steel corbel bolts. The steel corbel top plate and the steel corbel bottom plate are horizontally arranged on one side of the steel corbel side plate, and two parallel steel corbel webs are vertically arranged between them, and the steel corbel webs are connected to the steel corbel Side of the corbel side.

The bottom of the steel baffle web is fixed on the lower fixing plate, the lower fixing plate is connected with the steel corbel top plate through fixing bolts, and the top of the corrugated inner wall forms a concave isosceles trapezoidal groove, which A number of semi-cylindrical protrusions are arranged at equal intervals on the upper surface, and the surface of the friction cylinder is in contact with the upper surface of the corrugated inner wall.

The beneficial effects of the utility model are:

(1) The utility model can limit the excessive displacement between the beam body and the bridge pier along the direction of the bridge, prevent the phenomenon of falling beams, rely on the friction and deformation of the buffer energy-consuming device to buffer and consume a part of the energy input by the earthquake, and pass through the components. The deformation of the springs between them and the collision deformation of the collision rubber absorb the energy of the earthquake and minimize the damage of the bridge. After the earthquake, with the strengthening of the recovery function of the buffer energy-dissipating device and the torsion spring, the stopper can return to its original position. Morphology continues to work.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the arrangement diagram along the bridge of the utility model;

Fig. 3 is the structural schematic diagram of rotating support in the utility model;

Fig. 4 is the structural representation of steel baffle web and steel spring in the utility model;

Fig. 5 is the structural representation of the straight bar sliding structure in the utility model;

Fig. 6 is a structural schematic diagram of the corrugated inner wall in the utility model.

Detailed ways

The utility model is further described below:

Please refer to Figure 1-6,

The utility model discloses a multi-friction damping energy consumption reset anti-seismic block structure, which comprises a steel corbel 1, a friction cylinder 5, a wave inner wall 13, a first collision rubber 8, a steel spring 3 and a straight rod sliding structure 7. The steel corbel 1 is fixed above the side wall of the pier 23 through steel corbel bolts 18, the fixed top plate 25 is arranged on the top of the steel corbel 1, and the corrugated inner wall 13 is fixed on the upper part of the fixed top plate 25, and is located at the top of the fixed top plate 25. The steel baffle side panels 27 on both sides are connected with the steel baffle web 2 on the outside through the steel spring 3; the fixed support 16 is fixed on the bottom of the main beam 21 through the bolt 12, and the bottom of the fixed support 16 is fixed with a rotating support Seat 4, the outer ends of the two straight rod sliding structures 7 are respectively fixed above the inner walls of the steel baffle side plates 27 on both sides, and the inner ends are connected with the rotating support 4 through the second steel spring 10, The friction cylinder 5 is connected with the bottom of the rotating support 4 through a connecting rod.

The straight rod sliding structure 7 includes a connecting block 71, a sliding straight rod 72, a first collision rubber 8 and a second collision rubber 9, the connecting block 71 is in a square structure, and its outer end is fixed to the side plate of the steel baffle Above the inner wall of 27, its inner end is connected with the outer end of described sliding straight rod 72, and the inner end of described sliding straight rod 72 is connected with described rotating support 4 through described second steel spring 10; The collision rubber 8 and the second collision rubber 9 are fixed on the bottom of the outer end of the connecting block 71 in a semi-cylindrical structure; the lowest point of the second collision rubber 9 is lower than the lowest point of the first collision rubber 8, and the earthquake When an earthquake occurs, the seismic energy is buffered by the second steel spring 10. When the earthquake reaches a certain intensity, the friction cylinder 5 rotates to the top of the wave-shaped inner wall 13 and collides with the first collision rubber 8 and the second collision rubber 9. The plastic deformation of the first collision rubber 8 and the second collision rubber 9 consumes seismic energy.

The rotating support 4 is fixed on the bottom of the fixed support 16 in an inverted triangular bracket structure; the two friction cylinders 5 are respectively connected to the bottom of the rotating support 4 through connecting rods, and the tops of the connecting rods are connected to the bottom of the rotating bearing 4. The rotating support 4 is hinged; the surface of the friction cylinder 5 is provided with a number of semi-cylindrical friction blocks 6 at equal intervals, and the friction blocks 6 on the surface of the friction cylinder 5 are matched with the concave-convex surface of the corrugated inner wall 13. Friction The seismic energy is buffered when the cylinder 5 rolls.

The steel corbel 1 includes a steel corbel top plate 15, a steel corbel side plate 17, a steel corbel web 24 and a steel corbel bottom plate 14, and the steel corbel side plate 17 is fixedly connected by several steel corbel bolts 18 On the side wall of the pier 23, the steel corbel top plate 15 and the steel corbel bottom plate 14 are horizontally arranged on the side of the steel corbel side plate 17, and two parallel steel corbel webs are vertically arranged between them 24. The steel corbel web 24 is connected to one side of the steel corbel side plate 17.

The bottom of the steel baffle web 2 is fixed on the lower fixing plate 26, and the lower fixing plate 26 is connected with the steel corbel top plate 15 through fixing bolts 11, and the top of the wave inner wall 13 forms a concave etc. The upper surface of the waist trapezoidal groove is equidistantly provided with a number of semi-cylindrical protrusions, and the surface of the friction cylinder 5 is in contact with the upper surface of the corrugated inner wall 13 .

Working principle: During an earthquake, the main beam 21 is displaced in the forward direction, which drives the displacement of the rotating support 4, and the second steel spring 10 between the sliding straight rod 72 and the rotating support 4 undergoes compression deformation, and the rotating support 4 passes through the connecting rod. The connection drives the friction cylinder 5 inside the anti-seismic block to roll on the wave inner wall 13. On the one hand, the second steel spring 10 compresses and deforms to consume seismic energy; The friction generated when the inner wall 13 rolls consumes seismic energy;

When the earthquake reaches a certain intensity, the friction cylinder 5 rotates to the top of the corrugated inner wall 13 to collide with the first collision rubber 8 and the second collision rubber 9, and the seismic energy is consumed through the plastic deformation of the first collision rubber 8 and the second collision rubber 9 .

The steel spring 3 between the steel baffle side plate 27 and the steel baffle web 2 is composed of uniformly distributed small springs. In this way, the force-bearing area can be increased, thereby reducing the pressure of the web 2 of the steel baffle and making the web 2 safer. At the same time, it can limit lateral displacement and convert seismic energy into energy absorbed by spring compression and tension.

The above is only an embodiment of the utility model, and does not limit the patent scope of the utility model. All equivalent transformations made by using the specification of the utility model and the contents of the accompanying drawings or directly or indirectly used in related technical fields are all the same. Included in the patent protection scope of the present utility model.

Claims (5)

1. A multi-friction damping energy consumption reset anti-seismic block structure, characterized in that it includes a steel corbel (1), a friction cylinder (5), a wave inner wall (13), a first collision rubber (8), and a steel spring (3) and a straight rod sliding structure (7), the steel corbel (1) is fixed above the side wall of the pier (23) by steel corbel bolts (18), and the fixed top plate (25) is set on the steel corbel (1 ) top, the corrugated inner wall (13) is fixed on the upper part of the fixed top plate (25), and the steel baffle side plates (27) on both sides of the fixed top plate (25) are connected with the steel springs (3) on the outside The baffle webs (2) are connected; the fixed support (16) is fixed to the bottom of the main beam (21) by bolts (12), and the bottom of the fixed support (16) is fixed with a rotating support (4), two The outer ends of the straight bar sliding structure (7) are respectively fixed above the inner walls of the steel baffle side panels (27) on both sides, and the inner ends are connected to the rotating support (4) by the second steel spring (10) ), the friction cylinder (5) is connected with the bottom of the rotating support (4) through a connecting rod. 2. A multi-friction damping and energy-dissipating reset anti-seismic block structure according to claim 1, characterized in that: the straight rod sliding structure (7) includes a connecting block (71) and a sliding straight rod (72), the first A collision rubber (8) and a second collision rubber (9), the connecting block (71) has a square structure, its outer end is fixed above the inner wall of the steel baffle side plate (27), and its inner end is connected to the The outer end of the sliding straight rod (72) is connected, and the inner end of the sliding straight rod (72) is connected with the rotating support (4) through the second steel spring (10); the first collision rubber (8) and the second collision rubber (9) are fixed on the bottom of the outer end of the connecting block (71) in a semi-cylindrical structure; the lowest point of the second collision rubber (9) is lower than the first collision rubber (8) lowest point. 3. A multi-friction damping energy consumption reset anti-seismic block structure according to claim 2, characterized in that: the rotating support (4) is fixed on the bottom of the fixed support (16) in an inverted triangular support structure; Each of the friction cylinders (5) is respectively connected to the bottom of the rotating support (4) through connecting rods, and the top of the connecting rod is hinged to the rotating support (4); the friction cylinders (5) ) is provided with a number of semi-cylindrical friction blocks (6) at equal intervals. 4. A multi-friction, damping, energy-dissipating and resettable anti-seismic block structure according to claim 3, characterized in that: the steel corbel (1) includes a steel corbel top plate (15), a steel corbel side plate (17 ), the steel corbel web (24) and the steel corbel bottom plate (14), the steel corbel side plate (17) is fixedly connected to the side wall of the pier (23) by a number of steel corbel bolts (18), the The steel corbel top plate (15) and the steel corbel bottom plate (14) are horizontally arranged on one side of the steel corbel side plate (17), and two parallel steel corbel webs (24) are vertically arranged between the two ), the steel corbel web (24) is connected to the steel corbel side plate (17) one side. 5. A multi-friction damping energy consumption reset anti-seismic block structure according to claim 4, characterized in that: the bottom of the steel baffle web (2) is fixed on the lower fixing plate (26), and the The lower fixing plate (26) is connected to the steel corbel top plate (15) through fixing bolts (11), and the top of the corrugated inner wall (13) forms a concave isosceles trapezoidal groove, and its upper surface is equidistantly provided with Several semi-cylindrical protrusions, the surface of the friction cylinder (5) is in contact with the upper surface of the corrugated inner wall (13).

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