CN212426690U

CN212426690U - Vertical buffering anti vibration is roof beam device even

Info

Publication number: CN212426690U
Application number: CN202020270056.XU
Authority: CN
Inventors: 刘新华; 陈楚龙; 黄古剑; 彭元诚
Original assignee: CCCC Second Highway Survey and Design Institute Co Ltd
Current assignee: CCCC Second Highway Survey and Design Institute Co Ltd
Priority date: 2020-03-07
Filing date: 2020-03-07
Publication date: 2021-01-29
Anticipated expiration: 2030-03-07

Abstract

The utility model discloses a vertical buffering anti-vibration beam connecting device, which comprises a steel box beam, a bridge tower lower beam and a beam connecting device, wherein two ends of the steel box beam are supported on the bridge tower lower beam and are connected with the bridge tower lower beam through the beam connecting device, the steel box beam is provided with a plurality of separated cavities in the transverse bridge direction, sleeve holes are arranged on a wing plate on the bridge tower lower beam, the sleeve holes are symmetrically arranged near two sides of a web plate of the bridge tower lower beam, the lower surface of the steel box beam is provided with a beam connecting hole, horn sleeves in the beam connecting device are symmetrically arranged in the sleeve holes and the beam connecting hole, the horn mouths are opposite to each other, two ends of a steel wire rope bundle respectively pass through the horn mouths, the reducing ends of the horn sleeves at the bottom and the lower part are anchored, the top end is anchored with a fixing flange at the reducing end of the horn sleeves at the upper part, the reducing end of the horn sleeves in the sleeve holes is anchored with an upper wing plate, the fixing flange applies acting force to the bottom surfaces, when the steel box girder vibrates up and down, the vibration is buffered to limit the amplitude.

Description

Vertical buffering anti vibration is roof beam device even

Technical Field

The utility model belongs to bridge parts field, concretely relates to vertical buffering anti vibration is roof beam device even.

Background

The strong earthquake zone and the fracture zone are easy to generate large earthquakes with strength exceeding the expected strength, and are positioned on bridges in the regions, and during earthquake, large earthquake force in each direction can cause large relative vertical and horizontal displacement between the upper structure and the lower structure of the bridge. In order to prevent the upper structure beam body from generating large vertical displacement or tilting too high to separate the beam body from the lower beam of the bridge tower or even fall the beam when the super-large earthquake occurs, a vibration-damping energy-consuming buffering device is needed to prevent the risk disasters of separation of the lower beam of the bridge tower, damage of the beam body and falling of the beam body caused by large displacement of the upper structure of the bridge under the action of the super-expected earthquake. This damping power consumption buffer does not play a role when normal operation operating condition, and superstructure can freely vibrate or stretch out and draw back, begins to play a role when the super large earthquake takes place, and the restriction superstructure can not produce too big dislocation, restricts the roof beam body with this, plays the effect of buffering fixed protection.

SUMMERY OF THE UTILITY MODEL

To the above problem, the utility model aims at providing a construction is simple and convenient, and the simple structure can effective tractive roof beam body, prevents to keep away from the bridge tower bottom end rail behind the perk of vibration effect roof beam body, but makes the roof beam body horizontal hunting in the vibration process simultaneously to do not destroy the tractive device of vertical direction in the swing.

The utility model provides a technical scheme of problem is: a vertical buffering anti-vibration connecting beam device comprises a steel box beam, a lower bridge beam and a connecting beam device, wherein two ends of the steel box beam are supported on the upper surface of the lower bridge beam and are connected with the lower bridge beam through the connecting beam device, the steel box beam is provided with a plurality of spacing cavities separated by supporting beams in the transverse bridge direction, the lower bridge beam is provided with a lower bridge beam web corresponding to the supporting beams, the lower bridge beam web supports an upper wing plate of the lower bridge beam, the upper wing plate is provided with sleeve holes, the sleeve holes are symmetrically arranged close to two sides of the lower bridge beam web, the lower surface of the steel box beam is provided with connecting beam holes corresponding to the sleeve holes, the connecting beam device comprises steel wire ropes and horn sleeves, the horn sleeves are symmetrically arranged in the sleeve holes and the connecting beam holes in pairs, so that horn mouths of the horn sleeves are opposite to each other, two ends of the steel wire ropes pass through the horn mouths respectively, the horn sleeve's of steel wire rope bundle bottom and lower part reducing end anchor, and steel wire rope bundle top and the horn sleeve reducing end anchor on upper portion and still be fixed with mounting flange, this horn sleeve and the roof beam hole clearance fit on upper portion, the telescopic reducing end and the last pterygoid lamina anchor of horn sleeve in the bushing hole, this mounting flange exerts the effort to the compartment bottom surface through the buffer spring of cover outside the steel wire rope bundle, makes the steel case roof beam when vibration from top to bottom, and the buffering vibration to the restriction amplitude.

Preferably, an anchoring steel plate is embedded in the lower surface of the upper wing plate, and the reducing end of the horn sleeve in the sleeve hole is anchored with the anchoring steel plate.

Further, erect the U type supporting seat of invering between buffer spring and the compartment cavity bottom surface, this U type supporting seat cover is in linking downthehole loudspeaker sleeve pipe periphery and bottom and compartment cavity bottom surface welded fastening, this U type supporting seat and this loudspeaker sleeve pipe clearance fit.

Preferably, the lower surface of the steel box girder is welded with a reinforced steel plate covering the beam connecting hole, the surface of the reinforced steel plate is larger than the bottom section of the inverted U-shaped supporting seat, and the reinforced steel plate is provided with a through hole corresponding to the beam connecting hole and is in clearance fit with the horn sleeve on the upper part.

Preferably, a support base stone is arranged between the bottom surface of the steel box girder and the upper surface of the upper wing plate, and the height of the support base stone is greater than the sum of the heights of the mutually opposite horn sleeves respectively exposed out of the steel box girder and the upper wing plate.

The utility model has the advantages that:

when the horn sleeve in the spacing cavity can slide in a telescopic mode relative to the bottom face of the steel box girder and the U-shaped supporting seat, the top end of the steel wire rope bundle is anchored with the horn sleeve in the spacing cavity, when an earthquake does not occur, the buffer spring enables the fixing flange to be far away from the inverted U-shaped supporting seat, the horn sleeve retracts, when the earthquake occurs, the steel box girder vibrates up and down, the buffer spring absorbs potential energy generated when the steel box girder vibrates and reduces vibration speed, after the steel box girder is far away from the bridge tower lower cross beam, the steel wire rope bundle, the horn sleeve and the buffer spring are bound with the steel box girder together to prevent the steel box girder from being warped too high, and the steel box girder returns to.

The horn sleeve plays the anticorrosive effect of protection wire rope bundle, because the earthquake ripples are transverse wave generally, the steel box girder removes to take place vertical vibration and still takes place horizontal vibration, and horn sleeve pipe horn mouth is just right each other, can prevent that the sleeve pipe from cutting the wire rope bundle that takes place horizontal displacement when being close to each other.

The steel wire rope bundle belongs to a flexible restraint part and can avoid damaging the lower beam of the bridge tower and the steel box girder when the steel box girder vibrates.

A plurality of spacing cavities are arranged in the transverse bridge direction of the steel box girder, and the existing horizontal beam connecting device can be installed to restrain the relative positions of two adjacent steel box girders.

Drawings

FIG. 1 is a cross-sectional view of a vertical cushioning anti-vibration coupling beam assembly;

FIG. 2 is a cross-sectional view taken along the plane I-I of the vertical buffering and vibration-proof connecting beam device;

fig. 3 is a sectional view of the plane II-II of a vertical buffering and anti-vibration connecting beam device.

Detailed Description

The present invention is illustrated with reference to the accompanying drawings:

example 1

As shown in fig. 1 to 3, a vertical buffering and anti-vibration beam connecting device comprises a steel box beam 1, a lower bridge beam 2 and a beam connecting device 3, wherein two ends of the steel box beam 1 are supported on the upper surface of the lower bridge beam 2 and are connected with the lower bridge beam 2 through the beam connecting device 3, the steel box beam 1 is provided with a plurality of compartments 11 separated by supporting beams 12 in the transverse bridge direction, the lower bridge beam 2 is provided with a lower bridge beam web 21 corresponding to the supporting beams 12, the lower bridge beam web 21 supports an upper wing plate 22 of the lower bridge beam 2, the upper wing plate 22 is provided with sleeve holes 23, the sleeve holes 23 are symmetrically arranged near two sides of the lower bridge beam web 21, the lower surface of the steel box beam 1 is provided with a beam connecting hole 13 corresponding to the sleeve hole 23, the beam connecting device 3 comprises a steel wire rope bundle 31 and horn sleeves 32, the horn sleeves 32 are symmetrically arranged in pairs in the sleeve holes 23 and the beam connecting holes 13, so that horn mouths 33 of the horn sleeves 32 are opposite to each other, the two ends of the steel wire rope bundle 31 respectively penetrate through the bell mouth 33, the bottom end of the steel wire rope bundle 31 is anchored with the reducing end 34 of the horn sleeve 32 at the lower part, the top end of the steel wire rope bundle 31 is anchored with the fixing flange 35, the reducing end 34 of the horn sleeve 32 in the spacing cavity 11 is anchored with the fixing flange 35, the fixing flange 35 exerts acting force on the inverted U-shaped supporting seat 1 through the buffer spring 36 sleeved outside the steel wire rope bundle 31, the U-shaped supporting seat 15 is sleeved on the periphery of the horn sleeve 32 in the beam connecting hole 13, the bottom end of the horn sleeve 32 is welded and fixed with the bottom surface of the spacing cavity 11, the bottom surface of the spacing cavity 11 is in a shape like a Chinese character 'ji', the horn sleeve 32 is in clearance fit with the bottom surface of the steel box beam 1 and the U-shaped supporting seat 15, and the horn sleeve 32.

The reducing end 34 of the horn sleeve 32 in the sleeve hole 23 is anchored with the anchoring steel plate 4 pre-embedded at the bottom surface of the upper wing plate 22, so that when the steel box girder 1 vibrates up and down, the steel wire rope bundle 31, the fixing flange 35 and the buffer spring 36 are used for buffering the vibration and limiting the amplitude.

Preferably, a reinforcing steel plate 14 covering the beam connecting hole 13 is welded on the lower surface of the steel box beam 1, the surface of the reinforcing steel plate 14 is larger than the bottom section of the inverted U-shaped supporting seat 15, and the reinforcing steel plate 14 is provided with a through hole corresponding to the beam connecting hole 13 and is in clearance fit with the horn casing 32 on the upper part of the upper part.

And a support cushion stone 5 is arranged between the bottom surface of the steel box girder 1 and the upper surface of the upper wing plate 22, and the height of the support cushion stone 5 is greater than the sum of the heights of the mutually opposite horn sleeves 32 respectively exposed out of the steel box girder 1 and the upper wing plate 22.

Although the present invention has been described with reference to the accompanying drawings, it is not intended to limit the scope of the present invention, and those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without inventive work are still within the scope of the present invention.

Claims

1. A vertical buffering anti-vibration beam connecting device comprises a steel box beam (1), a bridge tower lower beam (2) and a beam connecting device (3), wherein two ends of the steel box beam (1) are supported on the upper surface of the bridge tower lower beam (2) and are connected with the bridge tower lower beam (2) through the beam connecting device (3), the steel box beam (1) is provided with a plurality of spaced cavities (11) separated by supporting beams (12) in the transverse direction, the bridge tower lower beam (2) is provided with a bridge tower lower beam web plate (21) corresponding to the supporting beams (12), the bridge tower lower beam web plate (21) supports an upper wing plate (22) of the bridge tower lower beam (2), the device is characterized in that the upper wing plate (22) is provided with a pipe hole (23), the pipe hole (23) is symmetrically arranged close to two sides of the bridge tower lower beam web plate (21), the lower surface of the steel box beam (1) is provided with a beam connecting hole (13) corresponding to the pipe hole (23), the beam connecting device (3) comprises steel wire rope bundles (31) and horn sleeves (32), the horn sleeves (32) are symmetrically arranged in pairs in sleeve holes (23) and beam connecting holes (13), horn mouths (33) of the horn sleeves (32) are opposite to each other, two ends of the steel wire rope bundles (31) respectively penetrate through the horn mouths (33), the bottom ends of the steel wire rope bundles (31) are anchored with the reducing ends (34) of the horn sleeves (32) at the lower parts, the top ends of the steel wire rope bundles (31) are anchored with the reducing ends (34) of the horn sleeves (32) at the upper parts and are also fixed with fixing flanges (35), the horn sleeves (32) at the upper parts are in clearance fit with the beam connecting holes (13), the reducing ends (34) of the horn sleeves (32) in the sleeve holes (23) are anchored with upper wing plates (22), and the fixing flanges (35) apply acting force to the bottom surfaces of the spacing cavities (11) through buffer springs (36) sleeved outside the steel wire rope bundles (31), when the steel box girder (1) vibrates up and down, the vibration is buffered and the amplitude is limited.

2. The vertical buffering and anti-vibration connecting beam device as claimed in claim 1, wherein an anchoring steel plate (4) is embedded in the lower surface of the upper wing plate (22), and the reducing end (34) of the horn sleeve (32) in the sleeve hole (23) is anchored with the anchoring steel plate (4).

3. The vertical buffering and anti-vibration connecting beam device as claimed in claim 1, characterized in that an inverted U-shaped supporting seat (15) is erected between the buffering spring (36) and the bottom surface of the spacing cavity (11), the U-shaped supporting seat (15) is sleeved on the periphery of the horn sleeve (32) in the connecting beam hole (13) and the bottom end of the U-shaped supporting seat is welded and fixed with the bottom surface of the spacing cavity (11), and the U-shaped supporting seat (15) is in clearance fit with the horn sleeve (32).

4. The vertical buffering anti-vibration connecting beam device according to claim 3, characterized in that a reinforcing steel plate (14) covering the connecting beam hole (13) is welded on the lower surface of the steel box beam (1), the surface of the reinforcing steel plate (14) is larger than the bottom section of the inverted U-shaped supporting seat (15), and the reinforcing steel plate (14) is provided with a through hole corresponding to the connecting beam hole (13) and is in clearance fit with the upper horn sleeve (32).

5. The vertical buffering anti-vibration coupling beam device according to claim 4, characterized in that a support cushion stone (5) is arranged between the bottom surface of the steel box beam (1) and the upper surface of the upper wing plate (22), and the height of the support cushion stone (5) is greater than the sum of the heights of the mutually opposite horn sleeves (32) respectively exposed out of the steel box beam (1) and the upper wing plate (22).