CN110485270A - A kind of bridge earthquake resistance device being provided with massif formula flexibility block - Google Patents
A kind of bridge earthquake resistance device being provided with massif formula flexibility block Download PDFInfo
- Publication number
- CN110485270A CN110485270A CN201910868896.8A CN201910868896A CN110485270A CN 110485270 A CN110485270 A CN 110485270A CN 201910868896 A CN201910868896 A CN 201910868896A CN 110485270 A CN110485270 A CN 110485270A
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- Prior art keywords
- block
- rigid
- shaped
- steel plate
- earthquake resistance
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Links
- 229910000831 Steel Inorganic materials 0.000 claims description 41
- 239000010959 steel Substances 0.000 claims description 41
- 239000007788 liquid Substances 0.000 claims description 8
- 238000002360 preparation method Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 7
- 230000008569 process Effects 0.000 abstract description 6
- 239000000872 buffer Substances 0.000 abstract description 5
- 238000005265 energy consumption Methods 0.000 abstract description 5
- 230000003139 buffering effect Effects 0.000 abstract description 4
- 230000009467 reduction Effects 0.000 abstract description 2
- 230000009471 action Effects 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000004873 anchoring Methods 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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
- E01D2101/00—Material constitution of bridges
- E01D2101/30—Metal
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/30—Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Abstract
The invention discloses a kind of bridge earthquake resistance devices for being provided with massif formula flexibility block, the identical U-shaped flexible block of two structures including being separately positioned on bent cap both ends；U-shaped rigid block is provided in flexible block, rigid block is interior, top is provided with rigid cover plate；Multiple springs are provided in rigid block, one end of spring connects the inner wall of rigid block, and the other end connects the rigid cover plate of rigid block；The present invention can effectively buffer resist geological process reduction fall beam accident, the multiple functions such as limit, buffering energy-consumption and reset can rationally be integrated, have multiple defence line, after shake reset be easy.
Description
Technical field
The present invention relates to bridge earthquake resistance and subtract technical field of isolation, and in particular to a kind of massif formula flexibility block that is provided with
Bridge earthquake resistance device.
Background technique
According to earthquake disaster data over the years, it is not difficult to find that bridge structure frequent occurrence due to vertically and horizontally limit measure less than
Beam accident is fallen caused by position.It falls beam accident and not only brings bigger difficulty to maintenance after the shake of bridge structure, while is also right
Traffic route below bridge generates serious interference.As people deepen continuously to earthquake disaster and seismic structural response,
Carry out structure design with also increasingly attention earthquake-resistant structure and its related subtract isolation measure in building course.And effectively subtract every
Shake device is the hot spot that civil engineering subtracts shock insulation field.
To avoid falling beam accident, often Antivibration block need to be set at bent cap both ends or use some buffering energy-consumption limiting devices.
Current existing bridge limiting device function is relatively single, cannot cause to realize multinomial function by multiple beneficial function beneficial to integrating
Can be with high costs larger with laying demand space, structure bulky is not easy replacement maintenance, manufacture difficulty of processing height after parts damages.
Summary of the invention
The present invention provide it is a kind of can effectively buffer resist geological process reduction fall beam accident, can by limit, buffering energy-consumption and
The multiple functions such as reset rationally integrate, and have multiple defence line, what is resetted after shake is provided with the bridge earthquake resistance of massif formula flexibility block
Device.
The technical solution adopted by the present invention is that a kind of bridge earthquake resistance device for being provided with massif formula flexibility block, including point
The identical U-shaped flexible block of two structures at bent cap both ends is not set；U-shaped rigid block, rigidity are provided in flexible block
Block is interior, top upper end is provided with rigid cover plate；Multiple springs are provided in rigid block, one end of spring connects rigid block
Inner wall, the other end connects the rigid cover plate of rigid block.
Further, the flexible block is hollow closed structure, inside filling liquid or gas.
Further, the flexible block is elastic rubber preparation.
Further, flexible block corresponding position is reserved with rectangular recess on the bent cap.
Further, girder lower end two sides are provided with a vertical steel plate, and vertical steel plate corresponding position is set on bent cap
It is equipped with U-shaped steel plate；Oblique steel plate is provided between vertical steel plate and U-shaped steel plate.
It further, is arc-shaped with U-shaped flexible block contact site on the outside of the U-shaped rigid block.
Further, the U-shaped steel plate is that a flat plate both ends are bent upwards to be formed respectively；Part and horizontal segment upwards
Part angle is 120 °~150 °.
Further, bottom is provided with filling opening in the flexible block, and rigid block and rigid cover plate corresponding position are set
There is through-hole.
The beneficial effects of the present invention are:
(1) present invention, which can effectively buffer to resist geological process and reduce, falls beam accident, and limit, buffering energy-consumption and reset etc. is multinomial
Function rationally integrates, and has multiple defence line, resets after shake easy to operate；
(2) present invention production requirement on machining accuracy is low, and short construction period, component easily replace that maintenance, cost is relatively low；
(3) for the present invention under normal use load, small earthquakes effect, the U-shaped flexible block for relying primarily on compression girder side is convex
Part makes its friction between the expansion of bent cap end and component contact face buffer dissipation seismic energy；It is main under severe earthquake action
Dissipation seismic energy is buffered by friction between the U-shaped flexible block convex portion of compression cover beam-ends and component contact face, is reached
Multi-way prevention limitation girder is displaced and avoids or reduces and fall beam accident.
Detailed description of the invention
Fig. 1 is schematic structural view of the invention.
Fig. 2 is U-shaped flexible stop block structure schematic diagram in the present invention.
Fig. 3 is U-shaped rigid block planar structure schematic diagram in the present invention.
Fig. 4 is U-shaped steel plate planar structure schematic diagram in the present invention.
In figure: 1- bent cap, 2- girder, 3- support, the vertical steel plate of 4-, the oblique steel plate of 5-, 6-U shape steel plate, 7- rigidity block,
8- flexibility block, 9- filler, 10- filling opening.
Specific embodiment
The present invention will be further described with reference to the accompanying drawings and examples.
As shown in Fig. 1,2,3 and 4, girder 2 is arranged on support 3, applies at 1 both ends of bent cap by erection support 3 on bent cap 1
Each reserved rectangular configuration groove when work pours.U-shaped steel by being welded is set in neutral straight section in U-shaped flexible block 8
Box rigidity block 7, rigid block 7 is interior, top is provided with rigid cover plate.Multiple springs are provided in rigid block 7, by bullet
Spring one end is anchored in rigid 7 inner wall of block, and the other end connects rigid cover plate.
Flexible block 8 is the U-shaped elastic rubber sealed compartment with filling opening 10, inside stuffing 9 can for liquid or
The lower gas of compressibility；Rectangular recess is reserved when 1 both ends construction casting of bent cap, and it is recessed that flexible block 8 is fixed on rectangle
In slot.2 lower end two sides of girder are provided with a vertical steel plate 5, and vertical 4 corresponding position of steel plate is provided with U-shaped steel plate 6 on bent cap 1；
Oblique steel plate 5 is provided between vertical steel plate 5 and U-shaped steel plate 6.U-shaped steel plate 6 from the flat plate both ends of certain size respectively to
On bend up 5~10cm after formed, bend up part and about 120 °~150 ° of angle of flat segments part.
There are two filling openings 10 for the setting of neutral straight section middle position in flexible block 8.Rigid block 7 and rigid cover plate with
10 corresponding position of filling opening is provided with through-hole.The diameter of through-hole is 2~3cm bigger than the diameter of filling opening 10.Reserved rectangular recess
Corresponding sides than flexible block are grown up 1~2cm, and the hole between rectangular recess and flexible block 8 is after liquid feeding in flexible block 8
Filling is full.Rigid 7 outside of block and the corner angle polishing of 8 contact portion of flexible block are arc-shaped, and flexible block 8 is avoided to connect with it
It is damaged when touching and friction.U-shaped steel plate 6 is polished into arc-shaped close to flexible 8 end cut of block, avoids flexible block 8 and U
It is damaged when the contact of shape steel plate 6 and friction.
In use, preparatory factory's customization processes the flexibility with filling opening 10 according to the design requirement of bridge structure antidetonation
Block 8 and spring.Rigid block 7, oblique steel plate 5, U-shaped steel plate 6, vertical steel plate 4, rigid cover plate cutting processing as requested
It is good.Rectangular recess is reserved in corresponding position in 1 concreting of bent cap, seals U-shaped elastic rubber in rectangular recess
The flexible block 8 that cabin is constituted is placed in rectangular recess, and installs rigid block 7.Then rigid cover plate is fixed by spring
Inside rigid block 7.Oblique steel plate 5 is anchored on pre-buried vertical steel plate 4 in the form of welding simultaneously.It is welded in its end
Connect pre-processed U-shaped steel plate 6.Finally by filling opening 10 to lesser liquid of compressibility such as flexible block 8 injection water, and
It is sealed against intact, just forms the liquid-filled Flexible bridge Antivibration block of massif in this way.The lower gas of compressibility can also be used
Body, U-shaped rigid block 7, U-shaped steel plate 6, the spring of use can also can play the structure of phase same-action using other.
Under normal use load action, the generated displacement in the case where the displacement of 2 lateral seismic of girder drives of U-shaped steel plate 6
Also smaller, U-shaped steel plate 6 does not contact with flexible block 8 substantially and generates the effect of rolling at this time.
Under small earthquakes effect, the increasing under lateral seismic Displacement Ratio normal use load action caused by girder 2
Add, U-shaped steel plate 6 by 8 convex portion of flexible block rolled by 2 side of girder and reduces its volume at this time.But it will lead to by lid
The U-shaped elastic rubber sealed compartment convex portion volume of 1 end of beam increases.Simultaneously by the rigid of compressed spring anchoring in rigid block 7
Property cover board also gradually to move on the outside of rigid block 7 and will be lockked by the U-shaped elastic rubber sealed compartment convex portion of 2 side of girder with
Avoid it from resiling.It is just formed more greatly like a massif is migrated under the promotion of U-shaped steel plate to by 1 end of bent cap in this way
Massif.This stage relies primarily on friction between steel plate and sealed compartment outer rubber, U-shaped elastic rubber sealed compartment convex portion
Compression buffers geological process and dissipation seismic energy with dilatancy.
Under severe earthquake action, the displacement of lateral seismic caused by bridge structure girder 2 is larger, due to U-shaped under the drive of girder 2
Steel plate 6 will be in contact or collide with the U-shaped elastic rubber sealed compartment convex portion by 1 end side of bent cap, while roll U-shaped bullet
Property rubber seal cabin convex portion is come the seismic energy that dissipates.
Present invention employs multiple theory of setting up defences, Path of Force Transfer is clear effectively, consumptive material is less, cost is lower, by reasonable
Calculating analysis and limited experiment can realize the seismic demand at different bridge sites, preferably scheme is obtained, to realize slow
The multiple functions such as energy consumption, cross spacing, Self-resetting are rushed, and reduces the generation for falling beam accident and promotes the antidetonation of bridge structure entirety
Ability.The present invention makes the material category general type used in process, is also easier to obtain in engineering construction, part replacement
More convenient, closed cabin liquid replacement supplement is relatively easy to, and the liquid such as water can be used and be filled, and then required cost is relatively
It is low, demand space is laid on bent cap and is easier to meet, therefore there is preferable marketing application prospect.
Claims (8)
1. a kind of bridge earthquake resistance device for being provided with massif formula flexibility block, which is characterized in that including being separately positioned on bent cap (1)
The identical U-shaped flexible block (8) of two structures at both ends；U-shaped rigid block (7), rigid block are provided in flexible block (8)
(7) interior, top is provided with rigid cover plate；Multiple springs are provided in rigid block (7), one end of spring connects rigid block
(7) inner wall, the other end connect the rigid cover plate of rigid block (7).
2. a kind of bridge earthquake resistance device for being provided with massif formula flexibility block according to claim 1, which is characterized in that institute
Stating flexible block (8) is hollow closed structure, inside filling liquid or gas.
3. a kind of bridge earthquake resistance device for being provided with massif formula flexibility block according to claim 2, which is characterized in that institute
Flexible block (8) is stated as elastic rubber preparation.
4. a kind of bridge earthquake resistance device for being provided with massif formula flexibility block according to claim 1, which is characterized in that institute
It states flexible block (8) corresponding position on bent cap (1) and is reserved with rectangular recess.
5. a kind of bridge earthquake resistance device for being provided with massif formula flexibility block according to claim 1, which is characterized in that institute
It states girder (2) lower end two sides and is provided with a vertical steel plate (5), vertical steel plate (4) corresponding position is provided with U-shaped on bent cap (1)
Steel plate (6)；Oblique steel plate (5) are provided between vertical steel plate (5) and U-shaped steel plate (6).
6. a kind of bridge earthquake resistance device for being provided with massif formula flexibility block according to claim 1, which is characterized in that institute
It states on the outside of U-shaped rigid block (7) and U-shaped flexible block (8) contact site is arc-shaped.
7. a kind of bridge earthquake resistance device for being provided with massif formula flexibility block according to claim 5, which is characterized in that institute
Stating U-shaped steel plate (6) is that a flat plate both ends are bent upwards to be formed respectively；Upwards part and horizontal segment part angle be 120 °~
150°。
8. a kind of bridge earthquake resistance device for being provided with massif formula flexibility block according to claim 2, which is characterized in that institute
It states flexible block (8) interior bottom to be provided with filling opening (10), rigid block (7) and rigid cover plate corresponding position are equipped with through-hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910868896.8A CN110485270B (en) | 2019-09-16 | 2019-09-16 | Bridge anti-seismic device provided with hillock type flexible stop blocks |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910868896.8A CN110485270B (en) | 2019-09-16 | 2019-09-16 | Bridge anti-seismic device provided with hillock type flexible stop blocks |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110485270A true CN110485270A (en) | 2019-11-22 |
| CN110485270B CN110485270B (en) | 2024-04-02 |
Family
ID=68558031
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910868896.8A Active CN110485270B (en) | 2019-09-16 | 2019-09-16 | Bridge anti-seismic device provided with hillock type flexible stop blocks |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110485270B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09316825A (en) * | 1996-05-30 | 1997-12-09 | Railway Technical Res Inst | Supporting material and its manufacture |
| JPH11269822A (en) * | 1998-03-23 | 1999-10-05 | Yokohama Rubber Co Ltd:The | Falling prevention device for bridge |
| JP2006342494A (en) * | 2005-06-07 | 2006-12-21 | Kawaguchi Metal Industries Co Ltd | Bearing of sealing rubber bearing plate |
| CN203451981U (en) * | 2013-05-07 | 2014-02-26 | 武汉科技大学 | Bridge buffer unit |
| CN205223834U (en) * | 2015-12-19 | 2016-05-11 | 长安大学 | Bridge anti -seismic dog with rubber pad and iron pipe |
| CN105926429A (en) * | 2016-06-24 | 2016-09-07 | 西南交通大学 | Buffer and energy dissipation bridge anti-seismicanti-seismic stop block structure |
| CN206570673U (en) * | 2017-03-02 | 2017-10-20 | 西南交通大学 | A kind of replaceable embedded rebar concrete anti-earthquake baffle block device |
| CN108179809A (en) * | 2018-03-15 | 2018-06-19 | 莆田学院 | The connection method of assembled steel tendon concrete frame structure component |
| CN211200034U (en) * | 2019-09-16 | 2020-08-07 | 莆田学院 | Bridge anti-seismic device provided with hill type flexible stop blocks |
-
2019
- 2019-09-16 CN CN201910868896.8A patent/CN110485270B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09316825A (en) * | 1996-05-30 | 1997-12-09 | Railway Technical Res Inst | Supporting material and its manufacture |
| JPH11269822A (en) * | 1998-03-23 | 1999-10-05 | Yokohama Rubber Co Ltd:The | Falling prevention device for bridge |
| JP2006342494A (en) * | 2005-06-07 | 2006-12-21 | Kawaguchi Metal Industries Co Ltd | Bearing of sealing rubber bearing plate |
| CN203451981U (en) * | 2013-05-07 | 2014-02-26 | 武汉科技大学 | Bridge buffer unit |
| CN205223834U (en) * | 2015-12-19 | 2016-05-11 | 长安大学 | Bridge anti -seismic dog with rubber pad and iron pipe |
| CN105926429A (en) * | 2016-06-24 | 2016-09-07 | 西南交通大学 | Buffer and energy dissipation bridge anti-seismicanti-seismic stop block structure |
| CN206570673U (en) * | 2017-03-02 | 2017-10-20 | 西南交通大学 | A kind of replaceable embedded rebar concrete anti-earthquake baffle block device |
| CN108179809A (en) * | 2018-03-15 | 2018-06-19 | 莆田学院 | The connection method of assembled steel tendon concrete frame structure component |
| CN211200034U (en) * | 2019-09-16 | 2020-08-07 | 莆田学院 | Bridge anti-seismic device provided with hill type flexible stop blocks |
Non-Patent Citations (1)
| Title |
|---|
| 冯云才;任红全;周凯;: "新型桥梁防震挡块作用机理研究", 四川建筑科学研究, no. 02, 25 April 2016 (2016-04-25) * |
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| Publication number | Publication date |
|---|---|
| CN110485270B (en) | 2024-04-02 |
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