CN106758777A - It is a kind of for preventing bridge main beam in the position limiting structure of earthquake decline beam - Google Patents
It is a kind of for preventing bridge main beam in the position limiting structure of earthquake decline beam Download PDFInfo
- Publication number
- CN106758777A CN106758777A CN201710047616.8A CN201710047616A CN106758777A CN 106758777 A CN106758777 A CN 106758777A CN 201710047616 A CN201710047616 A CN 201710047616A CN 106758777 A CN106758777 A CN 106758777A
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- CN
- China
- Prior art keywords
- girder
- ribbed belt
- earthquake
- bridge pier
- spacing
- 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.)
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Classifications
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- 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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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a kind of for preventing bridge main beam in the position limiting structure of earthquake decline beam, including girder and it is arranged on the spacing bridge pier of girder end, the spacing bridge pier top is provided with barrier body and ribbed belt, the barrier body sets along girder horizontal direction and the girder barrier that two longitudinal directions connect comes, the ribbed belt has some, each ribbed belt is disposed at the one or both sides of barrier body, and the groove for being embedded in ribbed belt is correspondingly provided with the girder；Limit configuration is correspondingly provided with girder and spacing bridge pier, constrained by the mutually chimeric transverse and longitudinal for realizing girder on spacing bridge pier to each other, effectively prevent fall beam of the earthquake middle girder in laterally and longitudinally direction, so that bridge still is able to be continuing with after earthquake, keep clear, reduce personnel's injury and the property loss for even eliminating to come by earthquake zone.
Description
Technical field
The invention belongs to bridge field, and in particular to a kind of for preventing bridge main beam in the spacing knot of earthquake decline beam
Structure.
Background technology
When bridge is subjected to violent earthquake, bridge will bear very big load in moment, so that larger displacement is produced, generation
Displacement exceeded beam shelving length or when block intensity is not enough can caused by fall beam, Luo Lianghui brings irremediable serious damage
Lose.One of limiting displacement most straightforward approach is, using spacing measure, the vibration of superstructure is suffered restraints.Current is general
Way is that horizontal anti-knock block is set at the top of the pier of bridge, sets girder falling chain or pull bar between girder, but when be subjected to compared with
During strong geological process, common precautions against earthquakes are still not enough to prevent longitudinal direction to fall beam.
The content of the invention
In view of this, it is an object of the invention to provide a kind of position limiting structure, to limit the horizontal stroke that beam end is produced by earthquake
To and length travel, it is ensured that its estimated performance under geological process.
To reach above-mentioned purpose, the present invention provides following technical scheme：One kind declines for preventing bridge main beam in earthquake
The position limiting structure of beam, including girder and the spacing bridge pier of girder end is arranged on, the spacing bridge pier top is provided with barrier body
And ribbed belt, the barrier body sets along girder horizontal direction and the girder barrier that two longitudinal directions connect comes, if the ribbed belt has
Dry bar, each ribbed belt is disposed at the one or both sides of barrier body, is correspondingly provided with the girder for being embedded in the recessed of ribbed belt
Groove.
Further, stopper slot is provided with along girder longitudinal direction in each ribbed belt, is correspondingly provided with the groove of the girder
Limit rib for being embedded in stopper slot.
Further, the ribbed belt is the trapezoidal projection in section, and the stopper slot is along girder transverse direction side by each bar ribbed belt
It is divided into the gap zone of multistage to interval.
The beneficial effects of the present invention are：Limit configuration is correspondingly provided with girder and spacing bridge pier, by phase to each other
Mutually the chimeric transverse and longitudinal constraint for realizing girder on spacing bridge pier, effectively prevent earthquake middle girder in laterally and longitudinally direction
The beam that falls so that bridge still is able to be continuing with after earthquake, keep clear, reduce even eliminate because earthquake zone come people
Member's injury and property loss.
Brief description of the drawings
In order that the purpose of the present invention, technical scheme and beneficial effect are clearer, the present invention provides drawings described below and carries out
Explanation：
Fig. 1 is structural representation of the invention；
Fig. 2 is the structural representation of girder；
Fig. 3 is the structural representation of spacing bridge pier.
Specific embodiment
Below in conjunction with accompanying drawing, the preferred embodiments of the present invention are described in detail.
As illustrated, in the present invention for preventing bridge main beam in the position limiting structure of earthquake decline beam, including girder 1 and
The spacing bridge pier 2 of the end of girder 1 is arranged on, barrier body 21 and some is provided with along the horizontal direction of girder 1 on the spacing bridge pier 2
Bar ribbed belt 22, the barrier body 21 is arranged at the upper center of spacing bridge pier 2 and opens the barrier of girder 1 that two longitudinal directions connect
Come, each ribbed belt 22 is disposed on the both sides of barrier body 21, and the groove 11 for being embedded in ribbed belt 22 is correspondingly provided with the girder 1.
In the present embodiment, the barrier body 21 at the upper center of spacing bridge pier 2 can open the cut-off of girder 1 in longitudinal direction, effectively prevent
The length travel of girder 1 transmission caused by earthquake.Mutually chimeric groove 11 and rib is correspondingly provided with girder 1 and spacing bridge pier 2
Band 22, realizes girder 1 and is constrained with spacing bridge pier 2 by its special limit configuration, limits girder 1 with spacing bridge pier 2
Longitudinally opposed displacement.If spacing bridge pier 2 is arranged on end, now, barrier body 21 is arranged on the upper side of spacing bridge pier 2, rib
With 22 sides for being disposed on barrier body 21.
As the further improvement of such scheme, stopper slot 23, institute are provided with along the longitudinal direction of girder 1 in each ribbed belt 22
The limit rib 12 for being embedded in stopper slot 23 is correspondingly provided with the groove 11 for stating girder 1.Specifically, the ribbed belt 22 in the present embodiment
It is the trapezoidal projection in section, the stopper slot 23 is between each bar ribbed belt 22 is divided into multistage along the horizontal direction of girder 1 interval
Broken belt, gap zone is coplanar with the supporting plane 24 of spacing bridge pier 2；Corresponding, the groove 11 for being used to be embedded in ribbed belt 22 on girder 1 is
Dovetail groove, limit rib 12 is coplanar with the mounting plane 13 of girder 1.During installation, girder 1 is overlapped on spacing bridge pier 2, overlaps process
It should be noted that by the stopper slot 23 that is entrenched in ribbed belt 22 of correspondence of limit rib 12 in groove 11, while by the groove 11 of girder 1
It is fastened in the ribbed belt 22 of spacing bridge pier 2, so, had both realized the limitation of girder 1 and the longitudinally opposed displacement of spacing bridge pier 2, and
The limitation of its laterally opposed displacement is realized, its longitudinal direction and the horizontal beam that falls is effectively prevent.
Finally illustrate, preferred embodiment above is merely illustrative of the technical solution of the present invention and unrestricted, although logical
Cross above preferred embodiment to be described in detail the present invention, it is to be understood by those skilled in the art that can be
Various changes are made to it in form and in details, without departing from claims of the present invention limited range.
Claims (3)
1. a kind of for preventing bridge main beam in the position limiting structure of earthquake decline beam, including girder and it is arranged on girder end
Spacing bridge pier, it is characterised in that：The spacing bridge pier top is provided with barrier body and ribbed belt, and the barrier body is along girder horizontal direction
Set and the girder barrier that two longitudinal directions connect comes, the ribbed belt there are some, and each ribbed belt is disposed on the one of barrier body
At side or both sides, the groove for being embedded in ribbed belt is correspondingly provided with the girder.
2. according to claim 1 for preventing bridge main beam in the position limiting structure of earthquake decline beam, it is characterised in that：Respectively
Stopper slot is provided with along girder longitudinal direction in the ribbed belt, the limit for being embedded in stopper slot is correspondingly provided with the groove of the girder
Position muscle.
3. according to claim 2 for preventing bridge main beam in the position limiting structure of earthquake decline beam, it is characterised in that：Institute
It is the trapezoidal projection in section to state ribbed belt, and the stopper slot is between each bar ribbed belt is divided into multistage along girder horizontal direction interval
Broken belt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710047616.8A CN106758777A (en) | 2017-01-22 | 2017-01-22 | It is a kind of for preventing bridge main beam in the position limiting structure of earthquake decline beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710047616.8A CN106758777A (en) | 2017-01-22 | 2017-01-22 | It is a kind of for preventing bridge main beam in the position limiting structure of earthquake decline beam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106758777A true CN106758777A (en) | 2017-05-31 |
Family
ID=58941388
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710047616.8A Pending CN106758777A (en) | 2017-01-22 | 2017-01-22 | It is a kind of for preventing bridge main beam in the position limiting structure of earthquake decline beam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106758777A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112523070A (en) * | 2020-12-16 | 2021-03-19 | 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 |
|---|---|---|---|---|
| JP2000017618A (en) * | 1998-07-06 | 2000-01-18 | Miyaji Tekkosho:Kk | Replacement method of concrete bridge to steel bridge |
| CN201915328U (en) * | 2010-12-28 | 2011-08-03 | 上海磁浮交通发展有限公司 | Steel bar stopper device capable of preventing beam from falling down |
| CN202492794U (en) * | 2012-04-05 | 2012-10-17 | 中国路桥工程有限责任公司 | Anti-seismic connecting rod beam fall-proof structure |
| CN103306193A (en) * | 2013-06-15 | 2013-09-18 | 中南大学 | Vertical beam falling-off prevention system |
| CN103966947A (en) * | 2014-05-24 | 2014-08-06 | 长安大学 | Beam-falling-resistant device based on bridge beam shock absorption |
| CN105780642A (en) * | 2016-04-22 | 2016-07-20 | 中铁二院工程集团有限责任公司 | Anti-seismic and anti-falling beam structure of high-pier bridge |
-
2017
- 2017-01-22 CN CN201710047616.8A patent/CN106758777A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000017618A (en) * | 1998-07-06 | 2000-01-18 | Miyaji Tekkosho:Kk | Replacement method of concrete bridge to steel bridge |
| CN201915328U (en) * | 2010-12-28 | 2011-08-03 | 上海磁浮交通发展有限公司 | Steel bar stopper device capable of preventing beam from falling down |
| CN202492794U (en) * | 2012-04-05 | 2012-10-17 | 中国路桥工程有限责任公司 | Anti-seismic connecting rod beam fall-proof structure |
| CN103306193A (en) * | 2013-06-15 | 2013-09-18 | 中南大学 | Vertical beam falling-off prevention system |
| CN103966947A (en) * | 2014-05-24 | 2014-08-06 | 长安大学 | Beam-falling-resistant device based on bridge beam shock absorption |
| CN105780642A (en) * | 2016-04-22 | 2016-07-20 | 中铁二院工程集团有限责任公司 | Anti-seismic and anti-falling beam structure of high-pier bridge |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112523070A (en) * | 2020-12-16 | 2021-03-19 | 重庆交通大学 | Public road bridge roof beam stop device that falls is prevented to bridge |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170531 |