CN104499422B - A kind of friction energy-dissipating anti-fall girder apparatus - Google Patents
A kind of friction energy-dissipating anti-fall girder apparatus Download PDFInfo
- Publication number
- CN104499422B CN104499422B CN201410682710.7A CN201410682710A CN104499422B CN 104499422 B CN104499422 B CN 104499422B CN 201410682710 A CN201410682710 A CN 201410682710A CN 104499422 B CN104499422 B CN 104499422B
- Authority
- CN
- China
- Prior art keywords
- channel
- steel plate
- fixing end
- steel
- section steel
- 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
-
- 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
- E01D19/04—Bearings; Hinges
Abstract
A kind of friction energy-dissipating anti-fall girder apparatus, belongs to protection against and mitigation of earthquake disasters technical field.It includes two fixing end assemblies being connected respectively, two channel-section steel systems, one piece of junction steel plate and four pivoting friction dissipation energy hinge compositions with bridge pier and beam body.Described fixing end assembly is anchored in bridge pier and beam body by four pre-buried high-strength bolts, described channel-section steel system by two back to channel-section steel form, described pivoting friction dissipation energy hinge by two pieces of annular steel discs, two pieces of annular copper sheets and a high-strength bolt composition.High-strength bolt is transmitted through annular steel disc, annular copper sheet, channel-section steel, the overhanging steel plate of fixing end assembly or junction steel plate, channel-section steel, annular copper sheet, annular steel disc formation friction energy-dissipating rotating hinge successively.Use said apparatus, when having relative displacement between bridge beam body and bridge pier, portion of energy that four hinged structures are free to rotate and restrainer, annular steel disc simultaneously, annular copper sheet, channel-section steel and fixing end steel plate or junction steel plate also can dissipate in rotation process.
Description
Technical field
The present invention relates to the construction field of science of bridge building, especially relate to a kind of friction energy-dissipating anti-fall girder apparatus.
Technical background
China is located between circum-Pacific seismic belt and Eurasian earthquake zone, the most area on territory is earthquake territory, the particularly west area of China mostly is meizoseismal area, and seismic activity is frequent, and the bridge construction that China so has a large capacity and a wide range necessarily proposes new challenge to Bridge Design.Bridge, as one of lifeline engineering, bears the important task of earthquake relief work and post-disaster reconstruction.In Wenchuan earthquake, owing to Wenchuan County and the most bridge blocks are by heavy damage, disaster relief personnel and goods and materials delay to enter by land, and disaster area rescue is created great inhibition.
All previous seimic disaster census shows: the beam that falls is the bridge earthquake form that frequency maximum the highest, destructive, reparation difficulty the most occurs.In view of this, at the bridge earthquake resistance technology developed country such as the U.S., the Japan construction measure that clear stipulaties is relevant in earthquake resistant design code the most, and the generation that anti-fall girder apparatus destroys with restrainer is installed.Anti-fall girder apparatus refers to the stopping means arranged between the two for preventing girder from departing from or to fall in bridge from pier.Anti-fall girder apparatus can limit adjacent beam body at bridge expanssion joint or Dun Liang vertical (horizontal) to relative displacement, be the effective measures of restrainer destruction.But, current China highly seismic region built and seldom use anti-fall girder apparatus at bridge construction beam.
The antidetonation situation severe in view of China and the present situation of extensive bridge construction, it is necessary to develop that simple structure, stress be clear, the obvious anti-fall girder apparatus of effect, it is made effectively to limit bridge over-large displacement under geological process, the generation of the sudden destructions such as restrainer.Friction energy-dissipating anti-fall girder apparatus by using the freely rotatable of four hinged structures to meet bridge under normal operation state or under geological process, issuable relative displacement between top beam body and bottom bridge pier；Meanwhile, annular steel disc, annular copper sheet, pivoting friction between channel-section steel system and junction steel plate can dissipative part seismic energy.Clear concept of the present invention, definite principle, it is easy to produce, it is simple to maintenance.
Summary of the invention
The open a kind of friction energy-dissipating anti-fall girder apparatus of the present invention, the excessive relative displacement that this device can effectively occur between bridge superstructure and substructure under Earthquake occurrence control effect, reduce the probability of the earthquake generations such as beam.
For solving above-mentioned technical problem, the present invention provides a kind of friction energy-dissipating anti-fall girder apparatus
A kind of friction energy-dissipating anti-fall girder apparatus, it includes two fixing end assemblies being connected respectively, two channel-section steel systems, one piece of junction steel plate and four pivoting friction dissipation energy hinges with bridge pier and beam body；Fixing end assembly is by pre-buried bolt anchoring on bridge pier and beam body, and one end of channel-section steel system is connected with fixing end assembly by pivoting friction dissipation energy hinge, and the other end is connected with junction steel plate 7 also by pivoting friction dissipation energy hinge.
Described fixing end assembly is welded by two block plates, and one of fixation steel plate 1 for being anchored by high-strength bolt, another block projects outwardly of overhanging steel plate 8 for being welded on described fixed plate central authorities.
Described fixing end assembly has two, wherein the fixing end assembly of horizontal direction by pre-buried bolt anchoring on bridge pier, the fixing end assembly of vertical direction by pre-buried bolt anchoring in beam body.
Described channel-section steel system by two back to channel-section steel 2 form, the overhanging steel plate of central authorities 8 of described fixing end assembly and described junction steel plate 7 consistency of thickness and be respectively positioned in channel-section steel system in the middle of two channel-section steels 2, and be connected by pivoting friction dissipation energy hinge will.
Described pivoting friction dissipation energy hinge includes two pieces of annular steel discs 4, two pieces of annular copper sheets 3 and a high-strength bolt 5；Described high-strength bolt 5 sequentially passes through annular steel disc 4, annular copper sheet 3, channel-section steel 2, the overhanging steel plate 8 of fixing end assembly or junction steel plate 7, channel-section steel 2, annular copper sheet, annular steel disc, and applies pretightning force and they linked together.
Horizontal direction that one end of two channel-section steel systems is connected with described by described pivoting friction dissipation energy hinge respectively with bridge pier, the overhanging steel plate 8 of fixing end assembly of the vertical direction being connected with beam body are connected, and channel-section steel system can rotate relative to overhanging steel plate 8.
Described pivoting friction dissipation energy hinge by the other end of two channel-section steel systems respectively two ends with described junction steel plate 7 be connected, and channel-section steel system can rotate relative to junction steel plate 7.
The working mechanism of the present invention is: the fixing end assembly anchoring of above-mentioned friction energy-dissipating anti-fall girder apparatus horizontal direction is with on bridge pier, and the fixing end assembly of vertical direction is anchored in beam body.Under normal operating condition, the channel-section steel system of both direction, close to vertical, can meet bridge occurrence temperature and stretch, or the vibration that vehicle causes.Work as geological process, when there is bigger relative displacement between beam body and bridge pier, the freely rotatable drive channel-section steel system of four hinged structures and junction steel plate are started working, vertical fixing end assembly holds that beam body does not occur excessive relative displacement and the beam that falls destroys, simultaneously, at four hinged structures, intermetallic pivoting friction also can dissipate and partly shake energy, it is ensured that the safety of bridge structure.
It is an advantage of the current invention that: by using the freely rotatable of four hinged structures to meet bridge under normal operation state or under geological process, issuable relative displacement between top beam body and bottom bridge pier；Meanwhile, annular steel disc, annular copper sheet, pivoting friction between channel-section steel system and junction steel plate can dissipative part seismic energy.Clear concept of the present invention, definite principle, it is easy to produce, it is simple to maintenance.
Accompanying drawing explanation
Fig. 1 is friction energy-dissipating anti-fall girder apparatus side view.
Fig. 2 is the front view of fixing end in friction energy-dissipating anti-fall girder apparatus.
Fig. 3 is the side view of fixing end in friction energy-dissipating anti-fall girder apparatus.
Fig. 4 is A-A, C-C profile of friction energy-dissipating anti-fall girder apparatus.
Fig. 5 is B-B, D-D profile of friction energy-dissipating anti-fall girder apparatus.
In figure: 1, the fixation steel plate of fixing end assembly, 2, channel-section steel, 3, annular copper sheet, 4, annular steel disc, 5, high-strength bolt, 6, anchor bolt, 7, junction steel plate, 8, the overhanging steel plate of fixing end assembly.
Detailed description of the invention
A kind of friction energy-dissipating anti-fall girder apparatus, the fixing end assembly being connected with bridge pier and beam body respectively by two, two channel-section steel systems, one piece of junction steel plate and four pivoting friction dissipation energy hinge compositions.
In this example, described fixing end assembly is welded by two block plates, and one of is the fixed plate 1 by the anchoring of pre-buried high-strength bolt 6, and another block projects outwardly of overhanging steel plate 8 for being welded on described fixed plate central authorities.Described fixing end assembly one has two, wherein the fixing end assembly of horizontal direction by pre-buried bolt anchoring on bridge pier, the fixing end assembly of vertical direction by pre-buried bolt anchoring in beam body.Described channel-section steel system by two back to channel-section steel 2 form, channel-section steel model is No.20, and length is about 50cm.The overhanging steel plate of central authorities 8 of described fixing end assembly and described junction steel plate 7 consistency of thickness and be respectively positioned in the middle of channel-section steel system, and be connected by pivoting friction dissipation energy hinge.Described pivoting friction dissipation energy hinge is by two pieces of annular steel discs 4, and two pieces of annular copper sheets 3 and a high-strength bolt 5 form, and described annular outer parameter of steel sheet is about 10cm, and described annular copper sheet external diameter is about 15cm.Described steel disc, copper sheet, channel-section steel and junction steel plate all have the round hole of diameter 1.5cm.High-strength bolt sequentially passes through annular steel disc, annular copper sheet, channel-section steel, the overhanging steel plate of fixing end assembly or junction steel plate, channel-section steel, annular copper sheet, annular steel disc, and applies pretightning force and they linked together.Described pivoting friction dissipation energy hinge by one end of two channel-section steel systems respectively overhanging steel plate with described horizontal direction, the fixing end assembly of vertical direction be connected, and channel-section steel system can rotate relative to overhanging steel plate.Described pivoting friction dissipation energy hinge by the other end of two channel-section steel systems respectively two ends with described junction steel plate be connected, and channel-section steel system can rotate relative to junction steel plate.
Claims (7)
1. a friction energy-dissipating anti-fall girder apparatus, it is characterised in that: it include two respectively with bridge pier and beam body
The fixing end assembly connected, two channel-section steel systems, one piece of junction steel plate (7) and four pivoting friction power consumptions
Hinge；Fixing end assembly is by pre-buried bolt anchoring on bridge pier and beam body, and one end of channel-section steel system is by rotating
Friction energy-dissipating hinge is connected with fixing end assembly, and the other end is also by pivoting friction dissipation energy hinge and junction steel plate (7)
It is connected.
Friction energy-dissipating anti-fall girder apparatus the most according to claim 1, it is characterised in that: described fixing end
Assembly is welded by two block plates, one of fixation steel plate (1) for being anchored by high-strength bolt, another
Block projects outwardly of overhanging steel plate (8) for being welded on described fixation steel plate (1) central authorities.
Friction energy-dissipating anti-fall girder apparatus the most according to claim 2, it is characterised in that: described fixing end
Assembly has two, wherein the fixing end assembly of horizontal direction by pre-buried bolt anchoring on bridge pier, vertically side
To fixing end assembly by pre-buried bolt anchoring in beam body.
Friction energy-dissipating anti-fall girder apparatus the most according to claim 3, it is characterised in that: described channel-section steel body
Be by two back to channel-section steel (2) form, the overhanging steel plate (8) of described fixing end assembly and described connection steel
Plate (7) consistency of thickness and being respectively positioned in channel-section steel system in the middle of two channel-section steels (2), and consumed energy by pivoting friction
Hinge is connected.
Friction energy-dissipating anti-fall girder apparatus the most according to claim 4, it is characterised in that: described rotation rubs
Wipe dissipation energy hinge and include two pieces of annular steel discs (4), two pieces of annular copper sheets (3) and a high-strength bolt (5)；
Described high-strength bolt (5) sequentially passes through annular steel disc (4), annular copper sheet (3), channel-section steel (2), fixing end
The overhanging steel plate (8) of assembly or junction steel plate (7), channel-section steel (2), annular copper sheet, annular steel disc, and execute
Add pretightning force they to be linked together.
Friction energy-dissipating anti-fall girder apparatus the most according to claim 5, it is characterised in that: described rotation rubs
Wipe dissipation energy hinge to be connected with beam body with the described horizontal direction being connected with bridge pier respectively one end of two channel-section steel systems
The overhanging steel plate (8) of fixing end assembly of vertical direction be connected, and channel-section steel system can the most overhanging steel plate (8)
Rotate.
Friction energy-dissipating anti-fall girder apparatus the most according to claim 1, it is characterised in that: described rotation rubs
Wipe dissipation energy hinge by the other end of two channel-section steel systems respectively two ends with described junction steel plate (7) be connected, and groove
Steel system can rotate relative to junction steel plate (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410682710.7A CN104499422B (en) | 2014-11-24 | 2014-11-24 | A kind of friction energy-dissipating anti-fall girder apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410682710.7A CN104499422B (en) | 2014-11-24 | 2014-11-24 | A kind of friction energy-dissipating anti-fall girder apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104499422A CN104499422A (en) | 2015-04-08 |
| CN104499422B true CN104499422B (en) | 2016-09-14 |
Family
ID=52940865
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410682710.7A Active CN104499422B (en) | 2014-11-24 | 2014-11-24 | A kind of friction energy-dissipating anti-fall girder apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104499422B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112211087B (en) * | 2020-08-25 | 2021-11-30 | 河海大学 | Replaceable muff-coupling row four-way limiting damping clamping tenon and installation method thereof |
| CN112814189A (en) * | 2021-01-05 | 2021-05-18 | 佛山市洵腾科技有限公司 | Novel friction device for earthquake resistance of prefabricated building |
| CN114703982A (en) * | 2022-03-15 | 2022-07-05 | 大连交通大学 | Composite energy-consumption self-resetting support with amplification mechanism |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3756979B2 (en) * | 1996-03-11 | 2006-03-22 | 財団法人鉄道総合技術研究所 | Girder fall prevention structure |
| JPH09242018A (en) * | 1996-03-13 | 1997-09-16 | Shibata Ind Co Ltd | Beam drop prevention structure and attaching method of buffering member in this structure |
| JP2004036337A (en) * | 2002-07-08 | 2004-02-05 | Tokyo Seiko Seni Rope Kk | Bridge falling preventive device |
| JP2005083090A (en) * | 2003-09-09 | 2005-03-31 | Tokai Univ | Prop type damping device |
| CN102797220B (en) * | 2012-08-22 | 2014-09-24 | 南京工业大学 | Novel energy-consumption beam falling prevention device |
-
2014
- 2014-11-24 CN CN201410682710.7A patent/CN104499422B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN104499422A (en) | 2015-04-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105926794B (en) | The assembled mild steel damper optimized using stress isobar | |
| CN108729344B (en) | A kind of two-columned pier construction waving shock insulation use in conjunction | |
| Sutcu et al. | Seismic retrofit design method for RC buildings using buckling-restrained braces and steel frames | |
| CN104499422B (en) | A kind of friction energy-dissipating anti-fall girder apparatus | |
| CN203701330U (en) | Swing shear wall | |
| CN105625163B (en) | A kind of anti-fall girder apparatus | |
| Marquez et al. | Common root causes in recent failures of cranes | |
| CN204000587U (en) | New city viaduct Horizontal Seismic system | |
| CN203320395U (en) | X-shaped metal shock-absorbing device applicable to bridge structures and with limiting capability | |
| CN205804147U (en) | Multi-functional embedded bridge limit configuration | |
| US20130001383A1 (en) | Spaced t primary member-to-primary member connection | |
| CN107178029B (en) | A kind of shearing resistance ball shaped steel bearing | |
| CN110258319B (en) | Self-adaptive horizontal corner shear tenon | |
| US20140318043A1 (en) | Class of Bearings to Protect Structures from Earthquake and Other Similar Hazards | |
| CN107841942B (en) | Hyperboloid friction pendulum support | |
| Sahoo et al. | Behavior of unstiffened steel plate shear wall with simple beam-to-column connections and flexible boundary elements | |
| JP2016205072A (en) | Bridge displacement restriction device | |
| CN202899028U (en) | Shock-absorption supporting base preventing girder falling | |
| CN102561176B (en) | Limiting structure for bridge | |
| CN105544379B (en) | Bridge limiting device | |
| WO2012003410A2 (en) | Spaced t primary member-to-primary member connection | |
| CN102787554B (en) | Anti-seismic abutment structure along bridge | |
| CN211079896U (en) | Friction pendulum type bridge seismic mitigation and isolation steel support | |
| CN209082754U (en) | A kind of tensile type friction physical pendulum steel construction shock isolating pedestal | |
| Moestopo et al. | On improved performance of eccentrically braced frames with replaceable shear link |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |