CN106930180B - A kind of damping anti-fall girder apparatus for preventing prefabricated beam bridge from longitudinally falling off - Google Patents
A kind of damping anti-fall girder apparatus for preventing prefabricated beam bridge from longitudinally falling off Download PDFInfo
- Publication number
- CN106930180B CN106930180B CN201710140188.3A CN201710140188A CN106930180B CN 106930180 B CN106930180 B CN 106930180B CN 201710140188 A CN201710140188 A CN 201710140188A CN 106930180 B CN106930180 B CN 106930180B
- Authority
- CN
- China
- Prior art keywords
- rubber ring
- bolt
- steel plate
- prefabricated
- fixed
- 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.)
- Active
Links
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
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
A kind of damping anti-fall girder apparatus for preventing prefabricated beam bridge from longitudinally falling off, including：Prefabricated end floor beam, rubber ring, the longitudinal block for being set to bridge pier pier top, steel plate, dampening assembly, the first bolt, the second bolt, third bolt, the prefabricated end floor beam, the rubber ring, longitudinal block are sequentially arranged, and one end that the prefabricated end floor beam is connect with the rubber ring is bolted fixation by described first, one end that the longitudinal direction block is connect with the rubber ring is bolted fixation by the third；The steel plate is vertically arranged with the dampening assembly, and the steel plate is set on the rubber ring, is fixed by second bolt；The steel plate is extended in described dampening assembly one end, and the other end is connected and fixed by the third bolt and longitudinal block.Its advantage is that：Novelty simple in structure, reasonable stress, cost of implementation it is low and replace it is convenient, convenient for promoting the use of.
Description
Technical field
The present invention relates to bridge structure and anti-seismic technology field, specifically one kind prevents prefabricated beam bridge from longitudinally falling off
Damping anti-fall girder apparatus.
Background technology
Concrete assembled prefabricated beam bridge being widely used in bridge construction is general, is suitable for the bridge of medium and small span,
Have the advantages that it is simple in structure, easy for construction, can be mass it is prefabricated.Currently, domestic ripe concrete prefabricated beam bridge is main
It is Small Precast Box beam bridge and Precast T-Beam bridge, both bridge types are widely applied in highway bridge and urban elevated bridge.It is prefabricated small
The superstructure of box girder bridge and T beam bridges is to be formed by the standard beam slab transverse splicing of one piece of block prefabrication, with integral cast-in-situ
Formula box beam is compared, and the rigidity of structure and transverse splicing are weaker, is easier by seismic force in earthquake-prone region or high intensity Zone
Impact and there is a phenomenon where falling beam, easily bring the secondary damage of earthquake, bring about great losses.
In existing girder falling technology, the connection of anti-fall girder apparatus and beam body is needed in the pre-buried company in beam slab bottom mostly
Fitting or prefabricated bracket, this feature are suitable for the adjustable cast-in-situ box girder of template, and raw for prefabrication, standardization batch
The prefabricated beam bridge of production then brings inconvenience.In addition, the existing anti-fall girder apparatus in part is larger to the restraining force of beam body, beam is limited
Dilatation of the body under normal operating condition.Therefore, in conjunction with the structure of prefabricated beam bridge and construction feature, design one kind is suitable for
The prefabricated beam bridge and longitudinal anti-fall girder apparatus for not influencing beam body normal use is very necessary.
Invention content
In order to solve above-mentioned technological deficiency, the present invention provides a kind of damping girder falling for preventing prefabricated beam bridge from longitudinally falling off dress
It sets, to avoid anti-fall with energy-dissipating and shock-absorbing and limit in the difficulty of beam bottom built-in connection or prefabricated bracket, while in earthquake
Double action.
According to fig. 1 to fig. 6：A kind of damping anti-fall girder apparatus for preventing prefabricated beam bridge from longitudinally falling off, including：Prefabricated end
Crossbeam, rubber ring, the longitudinal block for being set to bridge pier pier top, steel plate, dampening assembly, the first bolt, the second bolt, third spiral shell
Bolt, the prefabricated end floor beam, the rubber ring, longitudinal block are sequentially arranged, and the prefabricated end floor beam and the rubber
The one end for enclosing connection is bolted fixation by described first, and one end that the longitudinal direction block is connect with the rubber ring passes through institute
It states third and is bolted fixation；The steel plate is vertically arranged on the rubber ring, and institute is extended in described dampening assembly one end
Steel plate is stated, the other end is connected and fixed by the third bolt and longitudinal block.
A kind of damping anti-fall girder apparatus for preventing prefabricated beam bridge from longitudinally falling off, its advantage is that：
1, device prepared by the present invention is not necessarily in beam slab bottom built-in connection or pours block, and it is prefabricated not influence beam slab
Normal flow, avoiding makes troubles in beam slab bottom built-in connection or prefabricated raised block to beam slab prefabricated construction, structure
Simple novelty, reasonable stress, cost of implementation are low and replace conveniently, convenient for promoting the use of；
2, when there is no geological process, due to the beam body of temperature change, concrete shrinkage and creep and automobile braking force generation
Deformation can be realized by freely stretching for rubber ring.When geological process occurs, relative displacement between beam body and bridge pier compared with
Greatly, on the one hand by rubber ring flexible, beam body is mobile and buffering seismic energy adapting at this time, on the other hand passes through and squeezes pressure
Power spring makes compression spring be deformed and damp, and then cuts down seismic energy, and prevents end from falling eventually by longitudinal block
The generation of beam phenomenon；
3, achieve the purpose that damping is anti-fall by the composite structure of rubber ring and compression spring, compensate for simple barrier type limit
The deficiency of position device, while again than drag-line type device and coupling beam device simple structure, economic and practical；
4, this device is located at bridge pier top surface, does not influence the beauty and visual effect of beam bottom, meanwhile, subtracting with cushioning effect
Shake component is respectively positioned in rubber ring, and phenomena such as can avoid corrosion, aoxidize, structure durability is good.
Description of the drawings
Fig. 1 is schematic structural view of the invention；
Fig. 2 is A-A cross-sectional views in Fig. 1；
Fig. 3 is B-B cross-sectional views in Fig. 1；
Fig. 4 is C-C cross-sectional views in Fig. 1；
Fig. 5,6 are respectively the floor map of working condition of the present invention, side schematic view (wherein, apparatus of the present invention setting
It is arranged marked as 93) marked as 92, girder marked as the setting of 91, bearing pad stone for label 9, bridge pier setting；
Wherein：
1, prefabricated end floor beam；
2, rubber ring, the 21, first rubber ring, the 22, second rubber ring；
3, longitudinal block, 4, steel plate；
5, dampening assembly, 51, joint steel pipe, 52, billet, 53, caging bolt, 54, compression spring；
6, the first bolt, the 7, second bolt, 8, third bolt.
Specific implementation mode
A kind of damping anti-fall girder apparatus for preventing prefabricated beam bridge from longitudinally falling off, including：Prefabricated end floor beam 1, is set rubber ring 2
It is placed in longitudinal block 3, steel plate 4, dampening assembly 5, the first bolt 6, the second bolt 7, the third bolt 8 of bridge pier pier top, it is described pre-
End floor beam 1 processed, the rubber ring 2, longitudinal block 3 are sequentially arranged, and the prefabricated end floor beam 1 connects with the rubber ring 2
The one end connect is connected and fixed by first bolt 6, and one end that the longitudinal direction block 3 is connect with the rubber ring 2 passes through institute
The second bolt 7 is stated to be connected and fixed；The steel plate 4 is vertically arranged on the rubber ring 2, and 5 one end of the dampening assembly extends
Go out the steel plate 4, the other end is connected and fixed by the third bolt 8 and longitudinal block 3.
Further, the prefabricated end floor beam 1 is used to multi-disc precast beam connection being integral；
Further, longitudinal block 3 is concordant with the side line of bridge pier, for limiting；And longitudinal block 3 and bridge
Pier pours together, or row pours again after bridge pier completion；
Preferably, the rubber ring 2 includes concentrically the first rubber ring 21 of line, the second rubber ring 22 so that described the
One rubber ring, 21 one end is connect with the prefabricated end floor beam 1 by first bolt 6, and the other end passes through second bolt 7
It being connected and fixed with the steel plate 4, described second rubber ring, 22 one end is connected and fixed by second bolt 7 with the steel plate 4,
The other end is connected and fixed with the dampening assembly 5 by the third bolt 8 so that the dampening assembly 5 is located at the steel plate 4
Between the longitudinal baffle 3, when first rubber ring 21 is under pressure deformation, the steel plate 4 is to longitudinal block 3
Direction is slided, and then squeezes second rubber ring 22 so that cushion effect is generated between the steel plate 4 and longitudinal block 3,
To play the purpose of damping；
Preferably, first rubber ring 21 is identical as the section of second rubber ring 22, and equal at the place of being bolted
One layer of iron sheet gasket can be added；
Preferably, first rubber ring 21, the second rubber ring 22 section be round or rectangle, and with high molecular material
It prepares, ductility, compressibility, rotproofness are good, and high temperature resistance is good；
Preferably, first bolt 6, the third bolt 8 are high-strength bolt, and described first bolt, 6 one end is pre-
It is embedded in the prefabricated end floor beam 1, described 8 one end of third bolt is embedded in longitudinal block 3 in advance.
The dampening assembly 5 includes：The joint steel pipe 51 and longitudinal block being sheathed in second rubber ring 22
3 billets 52 disposed in parallel, caging bolt 53, the compression spring 54 being set in second rubber ring 22, the connection
51 one end of steel pipe extends to first rubber ring 21 across the steel plate 4, is fixed by the caging bolt 53, and the other end is worn
It crosses the billet 52 and is embedded in longitudinal block 3 in advance so that the steel plate 4 is slided along the joint steel pipe 51；The pressure
Spring 54 is sheathed on outside the joint steel pipe 51, and both ends are fixed by the steel plate 4, the billet 52 respectively, work as institute
It states after compression spring 54 is pressurized and is deformed along 51 direction of the joint steel pipe；
Further, the outer diameter of the joint steel pipe 51 is less than the internal diameter of the compression spring 54, described for not hindering
The deformation of steel plate 4 and the compression spring 54；
Further, the compression spring 54 selects steel spring；
First rubber ring 21, second rubber ring 22 internal diameter be more than the compression spring 54 outer diameter；
Preferably, the billet 52 is made of two layers of outer steel plate with rubber pad, and rubber pad is set to two layers of outer steel plate
Between；
Preferably, longitudinal block 3, the rubber ring 2, the compression spring 54, the joint steel pipe 51, the steel
The specific design parameter of plate 4, the billet 52 and high-strength bolt is designed according to the shockproof requirements of bridge structure and is determined.
The invention is realized in this way：
In normal state, the deformation of beam bridge and the deformation and displacement of displacement beam body are smaller, and the temperature deformation of beam body is shunk
Deformation can be realized by freely stretching for first rubber ring 21, will not trigger second rubber ring 22 substantially；
Under geological process, the deformation and displacement of beam body are larger, and first rubber ring 21 is understood by compressive deformation at this time,
Extruding is triggered to second rubber ring 22, and the direction for pushing the steel plate 4 towards longitudinal block 3 is slided, and then squeezes institute
State the second rubber ring 22 and the compression spring 54 so that second rubber ring 22 and the compression spring 54 generate buffering and become
Shape and damping force to play the cushioning effect of energy-dissipating and shock-absorbing, and limit the position of beam body eventually by longitudinal block 3
It moves, avoids and reduce the phenomenon that beam body longitudinally falls off.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all the present invention spirit and
Within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention.
Claims (7)
1. a kind of damping anti-fall girder apparatus for preventing prefabricated beam bridge from longitudinally falling off, it is characterised in that：Including prefabricated end floor beam (1),
Rubber ring (2), the longitudinal block (3) for being set to bridge pier pier top, steel plate (4), dampening assembly (5), the first bolt (6), the second spiral shell
Bolt (7), third bolt (8), the prefabricated end floor beam (1), the rubber ring (2), longitudinal block (3) are sequentially arranged, and
One end that the prefabricated end floor beam (1) connect with the rubber ring (2) is connected and fixed by first bolt (6), described vertical
The one end being connect to block (3) with the rubber ring (2) is connected and fixed by the third bolt (8)；The steel plate (4) is vertical
It is set on the rubber ring (2), and the steel plate (4) is extended in the dampening assembly (5) one end, the other end passes through described
Three bolts (8) are connected and fixed with longitudinal block (3).
2. a kind of damping anti-fall girder apparatus for preventing prefabricated beam bridge from longitudinally falling off according to claim 1, it is characterised in that：Institute
It includes the first rubber ring (21) of concentrically line, the second rubber ring (22) to state rubber ring (2) so that first rubber ring (21)
One end is connect with the prefabricated end floor beam (1) by first bolt (6), and the other end passes through second bolt (7) and institute
It states steel plate (4) to be connected and fixed, described second rubber ring (22) one end is connect by second bolt (7) with the steel plate (4)
Fixed, the other end is connected and fixed with the dampening assembly (5) by the third bolt (8) so that dampening assembly (5) position
Between the steel plate (4) and longitudinal block (3).
3. a kind of damping anti-fall girder apparatus for preventing prefabricated beam bridge from longitudinally falling off according to claim 2, it is characterised in that：Institute
State the first rubber ring (21), the section of the second rubber ring (22) is round or rectangle.
4. being existed according to a kind of damping anti-fall girder apparatus for preventing prefabricated beam bridge from longitudinally falling off, feature described in Claims 2 or 3
In：The dampening assembly (5) includes：The joint steel pipe (51) and longitudinal gear being sheathed in second rubber ring (22)
Block (3) billet disposed in parallel (52), caging bolt (53), the compression spring being set in second rubber ring (22)
(54), described joint steel pipe (51) one end extends to first rubber ring (21) across the steel plate (4), passes through the limit
Bolt (53) is fixed, and the other end is embedded in longitudinal block (3) in advance across the billet (52) so that steel plate (4) edge
Joint steel pipe (51) sliding；The compression spring (54) is sheathed on the joint steel pipe (51) outside, and both ends lead to respectively
It is fixed to cross the steel plate (4), the billet (52).
5. a kind of damping anti-fall girder apparatus for preventing prefabricated beam bridge from longitudinally falling off according to claim 4, it is characterised in that：Institute
The outer diameter for stating joint steel pipe (51) is less than the internal diameter of the compression spring (54).
6. a kind of damping anti-fall girder apparatus for preventing prefabricated beam bridge from longitudinally falling off according to claim 4, it is characterised in that：Institute
State the first rubber ring (21), second rubber ring (22) internal diameter be more than the compression spring (54) outer diameter.
7. a kind of damping anti-fall girder apparatus for preventing prefabricated beam bridge from longitudinally falling off according to claim 4, it is characterised in that：Institute
It states billet (52) to be made of with rubber pad two layers of outer steel plate, and rubber pad is set between two layers of outer steel plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710140188.3A CN106930180B (en) | 2017-03-10 | 2017-03-10 | A kind of damping anti-fall girder apparatus for preventing prefabricated beam bridge from longitudinally falling off |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710140188.3A CN106930180B (en) | 2017-03-10 | 2017-03-10 | A kind of damping anti-fall girder apparatus for preventing prefabricated beam bridge from longitudinally falling off |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106930180A CN106930180A (en) | 2017-07-07 |
| CN106930180B true CN106930180B (en) | 2018-08-24 |
Family
ID=59433730
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710140188.3A Active CN106930180B (en) | 2017-03-10 | 2017-03-10 | A kind of damping anti-fall girder apparatus for preventing prefabricated beam bridge from longitudinally falling off |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106930180B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107268423A (en) * | 2017-07-13 | 2017-10-20 | 中交公路养护工程技术有限公司 | One kind can reset bridge block |
| CN109024248A (en) * | 2018-08-10 | 2018-12-18 | 苏交科集团股份有限公司 | Automatically insert formula precast segment pillarwork and connection method |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09165719A (en) * | 1995-10-14 | 1997-06-24 | Tokyo Fabric Kogyo Kk | Connecting bridge fall preventive device |
| JP2001140978A (en) * | 1999-11-16 | 2001-05-22 | Bridgestone Corp | Laminated rubber support body |
| KR20090031039A (en) * | 2007-09-21 | 2009-03-25 | 협성실업 주식회사 | Apparatus for preventing bridge from falling, with multiple shock absorbing structure |
| CN201896287U (en) * | 2010-12-21 | 2011-07-13 | 衡水橡胶股份有限公司 | Buffer device for collision-preventing structure of bridge pier |
| CN103306192A (en) * | 2013-06-15 | 2013-09-18 | 中南大学 | Bridge space energy consumption limit device |
| CN204162991U (en) * | 2014-07-03 | 2015-02-18 | 同济大学 | Combined anti-fall girder apparatus |
| CN104652259A (en) * | 2015-02-13 | 2015-05-27 | 北京九州一轨隔振技术有限公司 | Damping spring basin type support seat |
| CN205954475U (en) * | 2016-07-08 | 2017-02-15 | 西安中交柏嘉科技发展有限公司 | Anti -girder -falling type polyurethane rubber board -type support |
| CN206956527U (en) * | 2017-03-10 | 2018-02-02 | 中国市政工程中南设计研究总院有限公司 | A kind of damping anti-fall girder apparatus for preventing that prefabricated beam bridge from longitudinally coming off |
-
2017
- 2017-03-10 CN CN201710140188.3A patent/CN106930180B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09165719A (en) * | 1995-10-14 | 1997-06-24 | Tokyo Fabric Kogyo Kk | Connecting bridge fall preventive device |
| JP2001140978A (en) * | 1999-11-16 | 2001-05-22 | Bridgestone Corp | Laminated rubber support body |
| KR20090031039A (en) * | 2007-09-21 | 2009-03-25 | 협성실업 주식회사 | Apparatus for preventing bridge from falling, with multiple shock absorbing structure |
| CN201896287U (en) * | 2010-12-21 | 2011-07-13 | 衡水橡胶股份有限公司 | Buffer device for collision-preventing structure of bridge pier |
| CN103306192A (en) * | 2013-06-15 | 2013-09-18 | 中南大学 | Bridge space energy consumption limit device |
| CN204162991U (en) * | 2014-07-03 | 2015-02-18 | 同济大学 | Combined anti-fall girder apparatus |
| CN104652259A (en) * | 2015-02-13 | 2015-05-27 | 北京九州一轨隔振技术有限公司 | Damping spring basin type support seat |
| CN205954475U (en) * | 2016-07-08 | 2017-02-15 | 西安中交柏嘉科技发展有限公司 | Anti -girder -falling type polyurethane rubber board -type support |
| CN206956527U (en) * | 2017-03-10 | 2018-02-02 | 中国市政工程中南设计研究总院有限公司 | A kind of damping anti-fall girder apparatus for preventing that prefabricated beam bridge from longitudinally coming off |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106930180A (en) | 2017-07-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206512589U (en) | A kind of longitudinal girder falling of bridge and crash device | |
| CN206956527U (en) | A kind of damping anti-fall girder apparatus for preventing that prefabricated beam bridge from longitudinally coming off | |
| CN205636471U (en) | Bury spacing antidetonation device of formula bridge | |
| CN107503283A (en) | Buffering energy-consumption type chain bridge anti-fall girder apparatus and its construction method | |
| CN106930180B (en) | A kind of damping anti-fall girder apparatus for preventing prefabricated beam bridge from longitudinally falling off | |
| CN105484152A (en) | Connection mode of pier and bearing platform through additional mild steel dampers | |
| CN108677693B (en) | Supporting device for seismic isolation and reduction of buildings, bridges and structures | |
| CN108677690A (en) | Energy dissipating Self-resetting bilayer rectangle hollow concrete filled steel tube waves Bridge Pier Structure System | |
| CN106284056A (en) | Longspan Bridge elastoplasticity shock mitigation system | |
| CN106894331A (en) | A kind of spacing bearing of the power consumption for carrying Viscous fluid damper | |
| CN105200915B (en) | Bridge deck or rail non-lifting longitudinal movable spherical support for railway bridge and construction method thereof | |
| CN101195986B (en) | Cantilever casting continuous beam temporary support concretion system for passenger special line | |
| CN208685436U (en) | A kind of energy-consuming device of multiple protective girder girder falling | |
| CN200992679Y (en) | Rubber vibration-isolating seat | |
| CN104963280B (en) | A kind of Novel circular steel cylinder pier | |
| CN201151872Y (en) | Passenger transport special railway line suspended casting continuous beam temporary support consolidation system | |
| CN206667082U (en) | A kind of steel box-girder splice plate more changing device | |
| CN112501956A (en) | Ballastless track | |
| Susantha et al. | Seismic performance improvement of circular steel columns using precompressed concrete-filled steel tube | |
| CN106320163A (en) | Elastic-plastic damping cable for transverse damping of large-span bridge | |
| CN207419220U (en) | In a kind of-the blank pipe flange combining beam put more energy into outside | |
| CN204849568U (en) | Novel circular steel tube pier | |
| KR101070043B1 (en) | Column-type damper for improving earthquake-proof efficiency | |
| Blank et al. | Design of Experimental Suspended Footbridge with Deck Made of UHPC | |
| CN214656015U (en) | Ballastless track |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |