CN203593946U - Damping type beam falling preventing device - Google Patents
Damping type beam falling preventing device Download PDFInfo
- Publication number
- CN203593946U CN203593946U CN201320775991.1U CN201320775991U CN203593946U CN 203593946 U CN203593946 U CN 203593946U CN 201320775991 U CN201320775991 U CN 201320775991U CN 203593946 U CN203593946 U CN 203593946U
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- CN
- China
- Prior art keywords
- beam falling
- steel slab
- embedded steel
- pier top
- stopping block
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- 238000013016 damping Methods 0.000 title abstract description 6
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 50
- 239000010959 steel Substances 0.000 claims abstract description 50
- 230000002265 prevention Effects 0.000 claims description 27
- 239000003351 stiffener Substances 0.000 claims description 3
- 239000011150 reinforced concrete Substances 0.000 abstract description 2
- 229910003460 diamond Inorganic materials 0.000 abstract 2
- 239000010432 diamond Substances 0.000 abstract 2
- 230000000694 effects Effects 0.000 description 3
- 239000004567 concrete Substances 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000037396 body weight Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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Abstract
The utility model relates to a damping type beam falling preventing device. A normal beam falling preventing device adopts a reinforced concrete structure, namely, a 'diamond cut diamond' mode to solve a beam falling preventing problem. The damping type beam falling preventing device is arranged between a pier top and a beam body supported above the pier top, a pier top pre-buried steel plate is pre-buried in the pier top, and a beam bottom pre-buried steel plate is pre-buried in the bottom of the beam body. A lower beam falling preventing check block is fixed to the top face of the pier top pre-buried steel plate, and two upper baffles are fixed to the bottom face of the beam bottom pre-buried steel plate, wherein the two baffles are located on the two sides of the lower beam falling preventing check block, and plate faces of the two baffles are opposite to each other. Clearances are formed between the upper baffles and the lower beam falling preventing check block. Compared with a traditional beam falling preventing device, the damping type beam falling preventing device has the advantages of enlarging structural damping, dissipating structural energy, reducing horizontal force borne by the beam falling preventing device, preventing a beam body from falling down the pier top, and being small in device structure size, simple in structure, capable of saving space of the pier top and easy to replace.
Description
Technical field
the utility model belongs to bridge construction technical field of buildings, is specifically related to a kind of damp type anti-fall girder apparatus.
Background technology
In the time that large shake occurs, guarantee that the beam body beam that do not fall causes last pipe protection barrier of catastrophic failure thereby anti-fall girder apparatus is bridge, the emphasis bridge of high intensity Zone is many will arrange anti-fall girder apparatus.Conventional anti-fall girder apparatus adopts reinforced concrete structure, and Dun Ding and beam body arrange the larger concrete shear connector in cross section, also have adopt high-intensity shaped steel bolt on beam body and bridge pier as anti-fall girder apparatus.But no matter concrete shear connector or high-strength shaped steel be all adopt Intensity Design theory the mode of " very stiff and demanding " solve girder falling problem, along with the raising of bridge their location earthquake intensity and the increase of bearing place beam body weight, the required cross section of anti-fall girder apparatus is increasing, but Dun Ding locus is very limited, therefore make the design of anti-fall girder apparatus more complicated, anti-fall girder apparatus is both uneconomical not attractive in appearance yet.
Summary of the invention
The purpose of this utility model is to provide a kind of damp type anti-fall girder apparatus, and that improves existing anti-fall girder apparatus " very stiff and demanding " is subject to force mode and sectional dimension shortcoming bigger than normal, makes anti-fall girder apparatus have the dual-use function of power consumption and girder falling.
The technical scheme that the utility model adopts is:
A kind of damp type anti-fall girder apparatus, includes pier top 6 and pier and pushes up the beam body 5 that 6 tops are supported, and it is characterized in that:
Pier top pre-embedded steel slab 1 end face is fixed with lower beam falling prevention stopping block 4, and at the bottom of beam, pre-embedded steel slab 2 bottom surfaces are fixed with and are positioned at two overhead gages 3 lower beam falling prevention stopping block 4 both sides, that plate face is relative;
Between overhead gage 3 and lower beam falling prevention stopping block 4, space is set.
At the bottom of pre-embedded steel slab 1 bottom, pier top and beam, pre-embedded steel slab 2 tops are provided with sleeve.
Lower beam falling prevention stopping block 4 is made up of the base plate of junction plate vertical with riser between two parallel risers, riser and riser and junction plate bottom, and part of horizontal cross section more than base plate becomes " work " font;
The base plate of lower beam falling prevention stopping block 4 fixes by high-strength bolt and pier top pre-embedded steel slab 1.
At the bottom of pre-embedded steel slab 1 bottom, pier top, beam, the base plate of pre-embedded steel slab 2, overhead gage 3 and lower beam falling prevention stopping block 4 adopts Q345 steel, and the riser of lower beam falling prevention stopping block 4 and junction plate adopt low-yield steel.
The utlity model has following advantage:
Compared with traditional anti-fall girder apparatus, the utlity model has and increase structural damping, dissipative structure energy, reduce horizontal force that anti-fall girder apparatus bears, prevent the advantage of beam body from the landing of pier top, apparatus structure size is little, simple structure, saves between pier head space, is easy to change.
Accompanying drawing explanation
Fig. 1 is the facade arrangement diagram of utility model structure.
Fig. 2 is the layout plan of utility model structure.
In figure, 1-pier top pre-embedded steel slab, pre-embedded steel slab at the bottom of 2-beam, 3-overhead gage, beam falling prevention stopping block under 4-, 5-beam body, 6-Dun Ding.
The specific embodiment
Below in conjunction with the specific embodiment, the utility model is described in detail.
A kind of damp type anti-fall girder apparatus that the utility model is related, is arranged on pier top 6 and pier and pushes up between the beam body 5 supporting 6 tops, and pier top 6 is embedded with pier top pre-embedded steel slab 1, and beam body 5 bottoms are embedded with pre-embedded steel slab 2 at the bottom of beam; Pier top pre-embedded steel slab 1 end face is fixed with lower beam falling prevention stopping block 4, and at the bottom of beam, pre-embedded steel slab 2 bottom surfaces are fixed with and are positioned at two overhead gages 3 lower beam falling prevention stopping block 4 both sides, that plate face is relative; Between overhead gage 3 and lower beam falling prevention stopping block 4, space is set.
At the bottom of pre-embedded steel slab 1 bottom, pier top and beam, pre-embedded steel slab 2 tops are provided with sleeve.
Lower beam falling prevention stopping block 4 is made up of the base plate of junction plate vertical with riser between two parallel risers, riser and riser and junction plate bottom, and part of horizontal cross section more than base plate becomes " work " font.The base plate of lower beam falling prevention stopping block 4 fixes by high-strength bolt and pier top pre-embedded steel slab 1.
At the bottom of pre-embedded steel slab 1 bottom, pier top, beam, the base plate of pre-embedded steel slab 2, overhead gage 3 and lower beam falling prevention stopping block 4 adopts Q345 steel, and the riser of lower beam falling prevention stopping block 4 and junction plate adopt low-yield steel.Owing to having adopted low yield point steel plate to make steel anti-fall girder apparatus, this device not only can utilize the energy of the shear strain dissipation superstructure input of low yield point steel plate, and can play conventional anti-fall girder apparatus and prevent the fall danger of beam of girder.
Without under the normal operating condition of earthquake and under little shake effect, damp type anti-fall girder apparatus is owing to leaving certain space between overhead gage 3 and lower beam falling prevention stopping block 4, beam body is because the distortion of shrinkage and creep etc. is unfettered, and now damp type anti-fall girder apparatus is not had an effect.
When large shake occurs, when the relative displacement occurring between bridge superstructure beam body and bridge pier is greater than the shift value (being also the distance of design between overhead gage 3 and lower beam falling prevention stopping block 4) of design permission, damp type anti-fall girder apparatus is had an effect, produce shear strain dissipation seismic energy, stop the large displacement of beam body, thereby prevent beam.
It is cited that content of the present utility model is not limited to embodiment, and the conversion of any equivalence that those of ordinary skills take technical solutions of the utility model by reading the utility model manual, is claim of the present utility model and contains.
Claims (5)
1. a damp type anti-fall girder apparatus, includes the beam body (5) that Dun Ding (6) and Dun Ding (6) top are supported, and it is characterized in that:
Dun Ding (6) is embedded with pier top pre-embedded steel slab (1), and beam body (5) bottom is embedded with pre-embedded steel slab (2) at the bottom of beam;
Pier top pre-embedded steel slab (1) end face is fixed with lower beam falling prevention stopping block (4), and pre-embedded steel slab at the bottom of beam (2) bottom surface is fixed with and is positioned at two overhead gages (3) lower beam falling prevention stopping block (4) both sides, that plate face is relative;
Between overhead gage (3) and lower beam falling prevention stopping block (4), space is set.
2. a kind of damp type anti-fall girder apparatus according to claim 1, is characterized in that:
At the bottom of pier top pre-embedded steel slab (1) bottom and beam, pre-embedded steel slab (2) top is provided with sleeve.
3. a kind of damp type anti-fall girder apparatus according to claim 2, is characterized in that:
Lower beam falling prevention stopping block (4) is made up of the base plate of junction plate vertical with riser between two parallel risers, riser and riser and junction plate bottom, and part of horizontal cross section more than base plate becomes " work " font;
The base plate of lower beam falling prevention stopping block (4) fixes by high-strength bolt and pier top pre-embedded steel slab (1).
4. a kind of damp type anti-fall girder apparatus according to claim 3, is characterized in that:
Overhead gage (3) is positioned at the both sides of (4) two parallel risers of lower beam falling prevention stopping block, and the top of two overhead gages (3) is provided with top board, and pre-embedded steel slab at the bottom of this top board and beam (2) fixes by high-strength bolt;
Overhead gage (3) outside is provided with and all vertical stiffeners of pre-embedded steel slab (2) at the bottom of overhead gage (3) and beam.
5. a kind of damp type anti-fall girder apparatus according to claim 4, is characterized in that:
At the bottom of pier top pre-embedded steel slab (1) bottom, beam, the base plate of pre-embedded steel slab (2), overhead gage (3) and lower beam falling prevention stopping block (4) adopts Q345 steel, and the riser of lower beam falling prevention stopping block (4) and junction plate adopt low-yield steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320775991.1U CN203593946U (en) | 2013-12-02 | 2013-12-02 | Damping type beam falling preventing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320775991.1U CN203593946U (en) | 2013-12-02 | 2013-12-02 | Damping type beam falling preventing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203593946U true CN203593946U (en) | 2014-05-14 |
Family
ID=50674844
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320775991.1U Expired - Lifetime CN203593946U (en) | 2013-12-02 | 2013-12-02 | Damping type beam falling preventing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203593946U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105040577A (en) * | 2015-09-02 | 2015-11-11 | 江苏明福钢结构有限公司 | Multi-element alloy co-penetrated bridge pre-embedded steel member |
| CN105421219A (en) * | 2015-12-09 | 2016-03-23 | 中国铁道科学研究院铁道建筑研究所 | U-shaped damping beam falling preventing device |
| CN105755949A (en) * | 2016-04-18 | 2016-07-13 | 招商局重庆交通科研设计院有限公司 | Box girder transverse limiting device |
| CN106436559A (en) * | 2016-11-18 | 2017-02-22 | 南昌大学 | Transverse-direction low-yield-point energy dissipation type steel bridge anti-seismic stop block structure and arranging method |
| CN107630405A (en) * | 2017-09-05 | 2018-01-26 | 安徽金星预应力工程技术有限公司 | Prefabricated case beam monoblock type girder falling |
| CN113106844A (en) * | 2021-04-14 | 2021-07-13 | 河北中通铁路配件有限公司 | Adjustable spacing clearance's locking type prevents roof beam dog that falls |
-
2013
- 2013-12-02 CN CN201320775991.1U patent/CN203593946U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105040577A (en) * | 2015-09-02 | 2015-11-11 | 江苏明福钢结构有限公司 | Multi-element alloy co-penetrated bridge pre-embedded steel member |
| CN105421219A (en) * | 2015-12-09 | 2016-03-23 | 中国铁道科学研究院铁道建筑研究所 | U-shaped damping beam falling preventing device |
| CN105755949A (en) * | 2016-04-18 | 2016-07-13 | 招商局重庆交通科研设计院有限公司 | Box girder transverse limiting device |
| CN106436559A (en) * | 2016-11-18 | 2017-02-22 | 南昌大学 | Transverse-direction low-yield-point energy dissipation type steel bridge anti-seismic stop block structure and arranging method |
| CN106436559B (en) * | 2016-11-18 | 2019-02-01 | 南昌大学 | A kind of suitable bridge is to low-yield steel energy-dissipating type bridge shock-proof check block structure and method for arranging |
| CN107630405A (en) * | 2017-09-05 | 2018-01-26 | 安徽金星预应力工程技术有限公司 | Prefabricated case beam monoblock type girder falling |
| CN113106844A (en) * | 2021-04-14 | 2021-07-13 | 河北中通铁路配件有限公司 | Adjustable spacing clearance's locking type prevents roof beam dog that falls |
| CN113106844B (en) * | 2021-04-14 | 2022-08-02 | 河北中通铁路配件有限公司 | Adjustable spacing clearance's locking type prevents roof beam dog that falls |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140514 |
|
| CX01 | Expiry of patent term |