CN111877132B - Bridge falling prevention device - Google Patents
Bridge falling prevention device Download PDFInfo
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- CN111877132B CN111877132B CN202010547857.0A CN202010547857A CN111877132B CN 111877132 B CN111877132 B CN 111877132B CN 202010547857 A CN202010547857 A CN 202010547857A CN 111877132 B CN111877132 B CN 111877132B
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- sliding plate
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- 230000002265 prevention Effects 0.000 title claims description 5
- 230000003139 buffering effect Effects 0.000 claims abstract description 20
- 230000003014 reinforcing effect Effects 0.000 claims description 15
- 230000000903 blocking effect Effects 0.000 claims description 2
- 238000006073 displacement reaction Methods 0.000 description 4
- 230000035939 shock Effects 0.000 description 4
- 239000006096 absorbing agent Substances 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 3
- 238000002955 isolation Methods 0.000 description 3
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000013016 damping Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000007619 statistical method Methods 0.000 description 1
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
- F16F15/06—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs
- F16F15/067—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs using only wound springs
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a bridge anti-falling device which comprises two concrete anti-falling stoppers, two slide bar bodies and two buffering devices, wherein the two end parts of a bent cap are respectively provided with the concrete anti-falling stoppers, the two end parts of a bridge are respectively provided with a pushing body for driving the corresponding buffering devices, the two ends of each slide bar body are respectively fixedly connected with the two concrete anti-falling stoppers, the buffering devices are arranged on the two slide bar bodies, each buffering device comprises a first sliding plate, a spring body, a second sliding plate and a connecting piece, the first sliding plate and the second sliding plate can be arranged on the two slide bar bodies in a sliding mode, the first sliding plate is close to the concrete anti-falling stoppers, the spring bodies are arranged between the first sliding plate and the second sliding plate, and compared with the prior art, the bridge anti-falling device can be repeatedly used, and the occurrence of transverse beam falling accidents is reduced.
Description
[ technical field ] A
The invention relates to the technical field of bridges, in particular to the technical field of a bridge anti-falling device.
[ background ] A method for producing a semiconductor device
Although the earthquake is an accidental event, once the earthquake happens, the building structure is damaged to different degrees, and the repair and reinforcement cost required for later restoring the original structure function is different due to the different damage degrees of the earthquake. Along with the statistical analysis of earthquake disaster data of people over the years, the structural earthquake resistance and seismic isolation and reduction design of the structure is more and more emphasized, and the whole earthquake resistance of the structure is improved by adopting some seismic isolation and reduction measures. According to the existing earthquake disaster data, the structure transverse beam falling caused by earthquake action sometimes happens, and the main reason is that transverse limiting measures such as buffering energy dissipation measures, transverse stop blocks and the like are not in place during the structure design. In order to effectively avoid or reduce the transverse beam falling accidents of the bridge structure, a great deal of research work needs to be carried out urgently, and the research work becomes a hot research subject in the field of civil engineering earthquake resistance and seismic isolation and reduction.
Under the action of overlarge earthquake, a main beam of the bridge structure is easy to generate large transverse displacement in the transverse bridge direction, and the main beam is directly contacted or collided with transverse constraint displacement measures such as an anti-seismic stop block, a buffering energy dissipation measure and the like arranged on the bent cap. The girder falling accidents of the main girder of the bridge structure are usually prevented at the expense of destroying the transverse constraint displacement measures such as anti-seismic blocks, buffering and energy dissipation measures and the like. Most of the existing bridge structure earthquake-proof stop block devices mainly rely on the deformation and the damage of the devices to resist earthquake disasters, and the resettability of the structures after the earthquake is relatively poor and the structures cannot be used repeatedly. In addition, when the main beam generates transverse displacement and impacts a certain side anti-seismic stop block, the two side anti-seismic stop blocks cannot bear impact force together, so that the impact force borne by the single side anti-seismic stop block is greatly increased, and the transverse beam falling accident is easily caused.
[ summary of the invention ]
The invention aims to solve the problems in the prior art, and provides a bridge anti-falling device which can be repeatedly used and can reduce the occurrence of transverse beam falling accidents.
In order to achieve the purpose, the invention provides a bridge anti-falling device, which comprises two concrete anti-falling stoppers, two slide bar bodies and two buffering devices, wherein the two end parts of a bent cap are respectively provided with the concrete anti-falling stoppers, the two end parts of a bridge are respectively provided with a pushing body for driving the corresponding buffering devices, the two ends of each slide bar body are respectively fixedly connected with the two concrete anti-falling stoppers, the buffering devices are arranged on the two slide bar bodies, each buffering device comprises a first slide plate, a spring body, a second slide plate and a connecting piece, the first slide plate and the second slide plate can be arranged on the two slide bar bodies in a sliding manner, the first slide plate is close to the concrete anti-falling stoppers, the spring body is arranged between the first slide plate and the second slide plate, the slide bar bodies are respectively provided with a blocking body positioned at the rear end of the second slide plate, and the first slide plate is provided with the connecting piece, the pushing body is used for pulling the connecting piece to move towards the central axis of the cover beam and pushing the second sliding plate to move away from the central axis of the cover beam.
Preferably, the connecting piece comprises a baffle body and two connecting rods, the baffle body is slidably arranged on the two sliding rod bodies, the inner end and the outer end of the baffle body are fixedly connected with the first sliding plate through the connecting rods, and the pushing body is positioned between the baffle body and the second sliding plate.
Preferably, the front end and the rear end of the concrete anti-seismic stop block are respectively provided with a reinforcing plate, the two reinforcing plates are fixedly connected together through a plurality of bolt pairs, and the two ends of the slide rod body are fixedly connected with the corresponding reinforcing plates.
Preferably, a damper located in the spring body is disposed between the first sliding plate and the second sliding plate.
Preferably, an adjusting and supporting device is arranged between the first sliding plate and the corresponding reinforcing plate.
Preferably, the adjusting and supporting device comprises a screw body and a nut body, the screw body is fixedly arranged on the first sliding plate, the screw body is provided with the nut body matched with the screw body, a damping block is arranged between the nut body and the reinforcing plate, an anti-collision block is arranged on the opposite surface of the damping block and the nut body, and an anti-collision head is arranged at the corresponding end of the nut body and the anti-collision block.
The invention has the beneficial effects that: the second sliding plate is pushed by the pushing body in front to compress the spring body, and the first sliding plate is driven by the pushing body in back to compress the spring body through the connecting piece to consume the impact force of the transverse left movement of the bridge; the promotion body in the place ahead drives the first sliding plate compression spring body and the promotion body in rear and promotes the second sliding plate compression spring body and consume the impact force that the bridge transversely moved to the right through the connecting piece, the horizontal impact force of bridge is born jointly by the concrete antidetonation dog of both sides, just so reduced the emergence that the concrete antidetonation dog of certain one side caused horizontal roof beam accident because of the too big impact force is crashed by the bridge, the antidetonation is effectual, the spring body and bumper shock absorber can be effectual the impact force of buffering bridge, and restorability is good.
The features and advantages of the present invention will be described in detail by embodiments in conjunction with the accompanying drawings.
[ description of the drawings ]
FIG. 1 is a schematic structural diagram of a bridge anti-falling device according to the present invention;
fig. 2 is a partial top view of a bridge girder falling prevention device according to the present invention.
In the figure: 1-concrete anti-seismic stop block, 2-slide rod body, 3-buffer device, 4-pushing body, 5-reinforcing plate, 6-adjusting support device, 7-bolt pair, 8-cover beam, 9-bridge, 31-first slide plate, 32-spring body, 33-second slide plate, 34-connecting piece, 35-blocking body, 36-shock absorber, 341-baffle body, 342-connecting rod, 61-screw rod body, 62-nut body, 63-shock absorption block, 64-anti-collision block and 65-anti-collision head.
[ detailed description ] embodiments
Referring to fig. 1 and 2, the bridge anti-falling device of the present invention comprises two concrete anti-seismic stoppers 1, two sliding bar bodies 2 and two buffering devices 3, wherein the two ends of a bent cap 8 are respectively provided with the concrete anti-seismic stoppers 1, the two ends of a bridge 9 are respectively provided with a pushing body 4 for driving the corresponding buffering device 3, the two ends of the sliding bar bodies 2 are respectively fixedly connected with the two concrete anti-seismic stoppers 1, the buffering devices 3 are arranged on the two sliding bar bodies 2, the buffering devices 3 comprise a first sliding plate 31, a spring body 32, a second sliding plate 33 and a connecting member 34, the first sliding plate 31 and the second sliding plate 33 are slidably arranged on the two sliding bar bodies 2, the first sliding plate 31 is close to the concrete anti-seismic stoppers 1, the spring body 32 is arranged between the first sliding plate 31 and the second sliding plate 33, the sliding bar bodies 2 are both provided with a stopper 35 located at the rear end of the second sliding plate 33, the first sliding plate 31 is provided with a connecting piece 34, the pushing body 4 is used for pulling the connecting piece 34 to move close to the central axis of the cover beam and pushing the second sliding plate 33 to move away from the central axis of the cover beam, the connecting piece 34 comprises a baffle body 341 and two connecting rods 342, the baffle body 341 is slidably arranged on the two sliding rod bodies 2, the inner end and the outer end of the baffle body 341 are fixedly connected with the first sliding plate 31 through the connecting rods 342, the pushing body 4 is positioned between the baffle body 341 and the second sliding plate 33, the front end and the rear end of the concrete earthquake-proof block 1 are provided with reinforcing plates 5, the two reinforcing plates 5 are fixedly connected together through a plurality of bolt pairs 7, the two ends of the sliding rod bodies 2 are fixedly connected with the corresponding reinforcing plates 5, and a shock absorber 36 positioned in the spring body 32 is arranged between the first sliding plate 31 and the second sliding plate 33, an adjusting and supporting device 6 is arranged between the first sliding plate 31 and the corresponding reinforcing plate 5, the adjusting and supporting device 6 comprises a screw body 61 and a nut body 62, the screw body 61 is fixedly arranged on the first sliding plate 31, the nut body 62 matched with the screw body 61 is arranged on the screw body 61, a shock absorption block 63 is arranged between the nut body 62 and the reinforcing plate 5, an anti-collision block 64 is arranged on the opposite surface of the shock absorption block 63 and the nut body 62, and an anti-collision head 65 is arranged at the corresponding end of the nut body 62 and the anti-collision block 64.
The working process of the invention is as follows:
in the working process of the bridge anti-falling device, when a bridge moves transversely leftwards, the front pushing body 4 pushes the second sliding plate 33 to compress the spring body 32 and the rear pushing body 4 drives the first sliding plate 31 to compress the spring body 32 through the connecting piece 34 so as to consume the impact force of the transverse left movement of the bridge; when the bridge moves laterally to the right, the front pushing body 4 drives the first sliding plate 31 to compress the spring body 32 through the connecting piece 34, and the rear pushing body 4 pushes the second sliding plate 33 to compress the spring body 32 to consume the impact force of the lateral movement of the bridge.
The above embodiments are illustrative of the present invention, and are not intended to limit the present invention, and any simple modifications of the present invention are within the scope of the present invention.
Claims (3)
1. The utility model provides a roof beam device is prevented falling by bridge which characterized in that: the concrete anti-seismic bridge comprises two concrete anti-seismic stops (1), two slide bar bodies (2) and two buffering devices (3), the two ends of a bent cap (8) are respectively provided with the concrete anti-seismic stops (1), the two ends of a bridge (9) are respectively provided with a pushing body (4) for driving the corresponding buffering devices (3), the two ends of each slide bar body (2) are respectively fixedly connected with the two concrete anti-seismic stops (1), the buffering devices (3) are arranged on the two slide bar bodies (2), each buffering device (3) comprises a first sliding plate (31), a spring body (32), a second sliding plate (33) and a connecting piece (34), the first sliding plate (31) and the second sliding plate (33) can be arranged on the two slide bar bodies (2) in a sliding manner, the first sliding plate (31) is close to the concrete anti-seismic stops (1), and the spring body (32) is arranged between the first sliding plate (31) and the second sliding plate (33), the concrete anti-seismic stop block is characterized in that the sliding rod bodies (2) are respectively provided with a blocking body (35) positioned at the rear end of the second sliding plate (33), the first sliding plate (31) is provided with a connecting piece (34), the pushing body (4) is used for pulling the connecting piece (34) to move towards the central axis of the cover beam and pushing the second sliding plate (33) to move away from the central axis of the cover beam, the connecting piece (34) comprises a baffle body (341) and two connecting rods (342), the baffle body (341) can be slidably arranged on the two sliding rod bodies (2), the inner end and the outer end of the baffle body (341) are fixedly connected with the first sliding plate (31) through the connecting rods (342), the pushing body (4) is positioned between the baffle body (341) and the second sliding plate (33), the front end and the rear end of the concrete anti-seismic stop block (1) are respectively provided with reinforcing plates (5), and the two reinforcing plates (5) are fixedly connected together through a plurality of bolt pairs (7), the two ends of the sliding rod body (2) are fixedly connected with the corresponding reinforcing plates (5), and adjusting and supporting devices (6) are arranged between the first sliding plate (31) and the corresponding reinforcing plates (5).
2. A bridge girder falling prevention device according to claim 1, wherein: a damper (36) positioned in the spring body (32) is arranged between the first sliding plate (31) and the second sliding plate (33).
3. A bridge girder falling prevention device according to claim 1, wherein: adjust strutting arrangement (6) including the screw body (61) and the nut body (62), the screw body (61) is fixed to be established on first sliding plate (31), be equipped with on the screw body (61) rather than matched with nut body (62), be equipped with snubber block (63) between nut body (62) and reinforcing plate (5), be equipped with anticollision piece (64) on the opposite face of snubber block (63) and nut body (62), be equipped with anticollision head (65) on the corresponding end of nut body (62) and anticollision piece (64).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010547857.0A CN111877132B (en) | 2020-06-16 | 2020-06-16 | Bridge falling prevention device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010547857.0A CN111877132B (en) | 2020-06-16 | 2020-06-16 | Bridge falling prevention device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111877132A CN111877132A (en) | 2020-11-03 |
| CN111877132B true CN111877132B (en) | 2022-05-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010547857.0A Active CN111877132B (en) | 2020-06-16 | 2020-06-16 | Bridge falling prevention device |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112342901A (en) * | 2020-11-05 | 2021-02-09 | 贵州路桥集团有限公司 | Elevated steel-concrete composite beam with high bearing capacity |
| CN112482196B (en) * | 2020-12-03 | 2022-04-05 | 中国地震局工程力学研究所 | Self-reaction type anti-falling beam structure |
| CN112523070B (en) * | 2020-12-16 | 2022-05-27 | 重庆交通大学 | Public road bridge roof beam stop device that falls is prevented to bridge |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0913317A (en) * | 1995-07-03 | 1997-01-14 | Kawaju Koji Kk | Earthquake resistant connecting device of bridge girder |
| CN203639798U (en) * | 2013-12-19 | 2014-06-11 | 清华大学 | Function-recoverable bridge |
| CN205676770U (en) * | 2016-05-27 | 2016-11-09 | 长安大学 | A kind of bridge earthquake resistance and antidumping construct |
| CN208183517U (en) * | 2018-04-24 | 2018-12-04 | 济南城建集团有限公司 | Stop assembly suitable for the bridge of straight web box girder or T beam energy consumption girder falling |
| CN110485263A (en) * | 2019-08-09 | 2019-11-22 | 南昌大学 | A kind of multidirectional limit energy consumption anti-seismic stop structure of Self-resetting |
| CN209722267U (en) * | 2019-04-18 | 2019-12-03 | 福建宏贯路桥防腐科技股份有限公司 | A kind of beam falling prevention stopping block of powder zincizing |
-
2020
- 2020-06-16 CN CN202010547857.0A patent/CN111877132B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0913317A (en) * | 1995-07-03 | 1997-01-14 | Kawaju Koji Kk | Earthquake resistant connecting device of bridge girder |
| CN203639798U (en) * | 2013-12-19 | 2014-06-11 | 清华大学 | Function-recoverable bridge |
| CN205676770U (en) * | 2016-05-27 | 2016-11-09 | 长安大学 | A kind of bridge earthquake resistance and antidumping construct |
| CN208183517U (en) * | 2018-04-24 | 2018-12-04 | 济南城建集团有限公司 | Stop assembly suitable for the bridge of straight web box girder or T beam energy consumption girder falling |
| CN209722267U (en) * | 2019-04-18 | 2019-12-03 | 福建宏贯路桥防腐科技股份有限公司 | A kind of beam falling prevention stopping block of powder zincizing |
| CN110485263A (en) * | 2019-08-09 | 2019-11-22 | 南昌大学 | A kind of multidirectional limit energy consumption anti-seismic stop structure of Self-resetting |
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