CN109853369A - A kind of steel construction fixture block bridge anti-fall girder apparatus using displacement energy consumption - Google Patents
A kind of steel construction fixture block bridge anti-fall girder apparatus using displacement energy consumption Download PDFInfo
- Publication number
- CN109853369A CN109853369A CN201811651379.7A CN201811651379A CN109853369A CN 109853369 A CN109853369 A CN 109853369A CN 201811651379 A CN201811651379 A CN 201811651379A CN 109853369 A CN109853369 A CN 109853369A
- Authority
- CN
- China
- Prior art keywords
- fixture block
- steel
- girder
- bent cap
- bridge
- 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.)
- Pending
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 99
- 239000010959 steel Substances 0.000 title claims abstract description 99
- 238000010276 construction Methods 0.000 title claims abstract description 39
- 238000006073 displacement reaction Methods 0.000 title claims abstract description 26
- 238000005265 energy consumption Methods 0.000 title claims abstract description 16
- 230000001681 protective effect Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 10
- 230000008569 process Effects 0.000 abstract description 8
- 239000002131 composite material Substances 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 3
- 239000000463 material Substances 0.000 abstract description 3
- 238000010521 absorption reaction Methods 0.000 description 4
- 238000002955 isolation Methods 0.000 description 4
- 230000035939 shock Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 238000009527 percussion Methods 0.000 description 1
- 239000003755 preservative agent Substances 0.000 description 1
- 230000002335 preservative effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Abstract
The invention discloses a kind of steel construction fixture block bridge anti-fall girder apparatus using displacement energy consumption, including bent cap steel fixture block and girder steel fixture block；Bent cap steel fixture block is the rectangle steel construction fixture block of pier cap beam direction across bridge edge setting；Girder steel fixture block is the rectangle steel construction fixture block that main beam support point outer beams bottom extends perpendicularly out.Under direction across bridge geological process, when girder lateral displacement is larger encounters rectangle steel fixture block, using the elastoplasticity feature of steel construction, in moving process, steel fixture block absorbs seismic energy, will not cause the generation for falling beam accident girder by the surrender of material；In vertical bridge under geological process, dislocation displacement occurs for girder and bent cap, using the elastoplasticity feature of steel, on the one hand plays the purpose for stopping excessive deformation, is on the other hand plastically deformed earthquake energy by collision steel fixture block, plays cushioning effect.The bridge of precast hollow slab structure, Prefabricated composite small box girder structure, precast beam structure that apparatus of the present invention are suitable for having shockproof requirements area.
Description
Technical field
The present invention relates to a kind of bridge displacement energy-consuming device, especially a kind of steel construction fixture block bridge using displacement energy consumption
Anti-fall girder apparatus.
Background technique
In the bridge of traditional hollow slab beam structure, Prefabricated composite small box girder structure or Precast T-Beam structure, bridge master
Beam support is provided with concrete block on bent cap direction across bridge both sides, distance is general between girder edge and block on pier cap beam
5cm, in vertical bridge to no difficult gear measure, when direction across bridge coming earthquake, alternate displacement occurs for bridge top girder and bent cap, by
It is concrete structure in block, generates brittle break under girder percussion, seismic displacement can not be stopped, be easy to lead
Cause falls the generation of beam accident.When vertical bridge is to coming earthquake, bridge main beam and bent cap generate along bridge to dislocation be displaced, due to vertical
For bridge to no limit measure, support is that flexible structure can not play position-limiting action, therefore when earthquake displacement is larger or pier is high
When higher, easily cause bridge and longitudinally fall beam accident.
Two kinds of above-mentioned bridges fall beam accident and occur in ago earthquake centre more, and the antidetonation of such bridge is mainly from subtracting at present
It is studied in terms of shock isolating pedestal, by vibration absorption and isolation support reduction structural seismic response, but what falling-off prevention measures still used
Brittle concrete structure indulges bridge to not having falling-off prevention measures substantially, this kind of antidetonation scheme, vibration absorption and isolation support is expensive, does not have
There is fundamentally generation of the control bridge structure displacement to avoid bridge from falling beam accident.
Summary of the invention
The purpose of the present invention is to provide a kind of steel construction fixture block bridge anti-fall girder apparatus using displacement energy consumption.
Realize the technical solution of the object of the invention are as follows: a kind of steel construction fixture block bridge girder falling dress using displacement energy consumption
It sets, including bent cap steel fixture block and girder steel fixture block；
Bent cap steel fixture block is the rectangle steel construction fixture block of bent cap direction across bridge edge setting；
Girder steel fixture block is the rectangle steel construction fixture block that main beam support point outer beams bottom extends perpendicularly out.
Compared with prior art, remarkable advantage of the invention are as follows: (1) present invention is applied to the prefabricated sky of high seismic intensity area
Core construction, Prefabricated composite small box girder structure, Precast T-Beam structure bridge in, good antidetonation shock attenuation can be played the role of, it is full
The sufficient small earthquake centre of bridge shakes the anti-seismic performance requirement that not bad, big shake can repair, while compared to traditional antidetonation side using vibration absorption and isolation support
Case, project cost can save 50%, good economy performance；(2) in China, precast hollow slab structure, Prefabricated composite small box girder structure,
The bridge of precast beam structure accounts for 80% or more of engineering construction Bridge sum, while China is also the country of earthquake more than one, is had
The area of shockproof requirements accounts for 85% of national territorial area or more, therefore the device has great application value.
Detailed description of the invention
Fig. 1 is steel construction fixture block bridge anti-fall girder apparatus front view.
Fig. 2 is steel construction fixture block bridge anti-fall girder apparatus top view.
Fig. 3 is steel construction fixture block bridge anti-fall girder apparatus side view.
Specific embodiment
As shown in Figure 1, Figure 2, Figure 3 shows, a kind of steel construction fixture block bridge anti-fall girder apparatus using displacement energy consumption, including bent cap
Steel fixture block 3 and girder steel fixture block 5；
Bent cap steel fixture block 3 is the rectangle steel construction fixture block of 2 direction across bridge edge of bent cap setting；
Girder steel fixture block 5 is the rectangle steel construction fixture block that 1 supporting-point outer beams bottom of girder extends perpendicularly out.
Bent cap steel fixture block 3 is uprightly embedded in bent cap 2.
The steel plate thickness of bent cap steel fixture block 3 is 8mm~20mm, and fixture block exposes bent cap height 30cm~60cm.
The outer surface cover PVC outside protective covers 8 of bent cap steel fixture block 3, shape is rectangular arrangement, and every side size is 5mm bigger than steel fixture block
~15mm, it is ensured that steel fixture block can be packed into, while also to have certain activity performance；
First rubber block 9 is set between bent cap steel fixture block 3 and girder 1.
The pre-buried vertical bridge that 1 supporting-point of girder is set of girder steel fixture block 5 to girder lower edge, with bent cap 2 keep setting away from
From.
Girder steel fixture block 5 is rectangle, and fixture block exposes bottom plane of main girder height 30cm~50cm.
Girder steel fixture block 5 is embedded in vertically in bottom plane of main girder concrete, buried depth 15cm~40cm.
Second rubber block 6 is set between girder steel fixture block 5 and bent cap 2.
The support 4 of bridge uses laminated rubber bearing.
The specific construction process of the method for the present invention are as follows:
(1) precast beam construction is carried out, in the construction process, in the pre-buried master in position of the beam bottom apart from beam-ends 100cm~200cm
Joist steel fixture block, pre-buried vertically downward, buried depth 15cm~40cm.
(2) bridge pier construction is carried out bent cap steel fixture block is embedded in bent cap two sides and is mixed in the bridge pier casting concrete stage
In solidifying soil region, vertical embedding, buried depth 20cm~50cm exposes concrete height 30cm~60cm, unilateral two steel cards
Block indulge bridge to distance be 50cm~150cm.
(3) anticorrosive coating construction is carried out to girder steel fixture block and bent cap steel fixture block.
(4) girder is lifted.
(5) the other position constructions of bridge, install bent cap steel fixture block protective cover.
(6) it is open to traffic.
The following describes the present invention in detail with reference to examples.
Embodiment
The present invention is set by the way that a set of vertical and horizontal elastoplasticity rectangle steel construction fixture block system is arranged at bent cap direction across bridge edge
The rectangle steel that bottom set side is exposed, rectangle steel is uprightly embedded in concrete bent cap, girder fulcrum vertical bridge to apart from bent cap one
The pre-buried setting rectangle steel fixture block of the girder lower edge of set a distance.Conventional laminated rubber bearing can be used in the support of bridge.
Bent cap steel fixture block is rectangle, and steel plate thickness is 8mm~20mm, and bridge is indulged to two fixture blocks of setting, fixture block dew in every edge
Concrete height 30cm~60cm out；Bent cap steel fixture block is embedded in concrete vertically, buried depth 20cm~50cm；
Girder steel fixture block is the rectangle steel construction fixture block that main beam support point outer beams bottom extends perpendicularly out；Girder steel fixture block is square
A rectangle steel fixture block vertically downward is arranged in the terminus direction near bent cap in shape, every beam bottom, and fixture block exposes
Bottom plane of main girder height 30cm~50cm；Girder steel fixture block is embedded in vertically in bottom plane of main girder concrete, and buried depth 15cm~
40cm；
In order to improve steel fixture block service life, cold spray zinc preservative treatment is carried out on steel fixture block surface, while putting on outside
The housing of PVC material plays waterproof action to steel fixture block, improves structure service life.
Under direction across bridge geological process, when girder lateral displacement is larger encounters rectangle steel fixture block, since fixture block is steel knot
Structure, using the elastoplasticity feature of steel construction, for girder in moving process, steel fixture block absorbs seismic energy by the surrender of material,
The longer plasticity feature of rectangle steel yield point elongation is utilized simultaneously, is also functioned to the purpose of limit, will not be caused the generation for falling beam accident.
In vertical bridge under geological process, dislocation displacement occurs for girder and bent cap, (is no more than girder bearing length when displacement reaches a certain level
Degree) when, the pre-buried rectangle steel fixture block of girder lower edge collides with bent cap, using the elastoplasticity feature of steel, on the one hand plays
Stop the purpose of excessive deformation, earthquake energy is on the other hand plastically deformed by collision steel fixture block, plays cushioning effect.
The device is applied to precast hollow slab structure, the Prefabricated composite small box girder structure, Precast T-Beam knot of high seismic intensity area
In the bridge of structure, good antidetonation shock attenuation can be played the role of, meet the small earthquake centre of bridge and shake the anti-seismic performance that not bad, big shake can repair
It is required that while compared to traditional antidetonation scheme using vibration absorption and isolation support, project cost can save 50%, good economy performance.
Claims (9)
1. a kind of steel construction fixture block bridge anti-fall girder apparatus using displacement energy consumption, which is characterized in that including bent cap steel fixture block (3)
With girder steel fixture block (5)；
Bent cap steel fixture block (3) is the rectangle steel construction fixture block of bent cap (2) direction across bridge edge setting；
Girder steel fixture block (5) is the rectangle steel construction fixture block that girder (1) supporting-point outer beams bottom extends perpendicularly out.
2. the steel construction fixture block bridge anti-fall girder apparatus according to claim 1 using displacement energy consumption, which is characterized in that lid
Joist steel fixture block (3) is uprightly embedded in bent cap (2).
3. the steel construction fixture block bridge anti-fall girder apparatus according to claim 1 or 2 using displacement energy consumption, feature exist
In the steel plate thickness of, bent cap steel fixture block (3) be 8mm~20mm, bent cap steel fixture block (3) expose bent cap (2) height be 30cm~
60cm。
4. the steel construction fixture block bridge anti-fall girder apparatus according to claim 1 or 2 using displacement energy consumption, feature exist
In bent cap steel fixture block (3) outside is cased with PVC outside protective covers (8).
5. being lived according to claim 1 using the steel construction fixture block bridge anti-fall girder apparatus of displacement energy consumption described in 2, feature exists
In the first rubber block (9) are arranged between bent cap steel fixture block (3) and girder (1).
6. the steel construction fixture block bridge anti-fall girder apparatus according to claim 1 using displacement energy consumption, which is characterized in that main
Joist steel fixture block (5) it is pre-buried setting girder (1) supporting-point vertical bridge to girder lower edge, with bent cap (2) keep set distance.
7. the steel construction fixture block bridge anti-fall girder apparatus using displacement energy consumption according to claim 1 or 6, feature exist
In girder steel fixture block (5) is rectangle, and the height that girder steel fixture block (5) exposes girder (1) bottom surface is 30cm~50cm.
8. the steel construction fixture block bridge anti-fall girder apparatus according to claim 7 using displacement energy consumption, which is characterized in that main
Joist steel fixture block (5) is embedded in bottom plane of main girder concrete vertically, and buried depth is 15cm~40cm.
9. the steel construction fixture block bridge anti-fall girder apparatus according to claim 1 using displacement energy consumption, which is characterized in that main
The second rubber block (6) are being arranged towards bent cap side in joist steel fixture block (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811651379.7A CN109853369A (en) | 2018-12-31 | 2018-12-31 | A kind of steel construction fixture block bridge anti-fall girder apparatus using displacement energy consumption |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811651379.7A CN109853369A (en) | 2018-12-31 | 2018-12-31 | A kind of steel construction fixture block bridge anti-fall girder apparatus using displacement energy consumption |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109853369A true CN109853369A (en) | 2019-06-07 |
Family
ID=66893596
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811651379.7A Pending CN109853369A (en) | 2018-12-31 | 2018-12-31 | A kind of steel construction fixture block bridge anti-fall girder apparatus using displacement energy consumption |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109853369A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110777640A (en) * | 2019-11-07 | 2020-02-11 | 湘潭大学 | Suspension cavity structure high-energy-consumption bridge anti-seismic stop block |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201952722U (en) * | 2010-12-16 | 2011-08-31 | 交通运输部公路科学研究所 | Double-layer steel plate seismic block |
| CN106368115A (en) * | 2016-09-28 | 2017-02-01 | 同济大学 | Novel shock insulation system suitable for medium and small-span beam bridges |
| CN206438384U (en) * | 2016-12-16 | 2017-08-25 | 同济大学 | A kind of horizontal shock-absorbing construction for being applied to conventional beam bridge |
| CN209508804U (en) * | 2018-12-31 | 2019-10-18 | 云南功东高速公路建设指挥部 | A kind of steel construction fixture block bridge anti-fall girder apparatus using displacement energy consumption |
-
2018
- 2018-12-31 CN CN201811651379.7A patent/CN109853369A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201952722U (en) * | 2010-12-16 | 2011-08-31 | 交通运输部公路科学研究所 | Double-layer steel plate seismic block |
| CN106368115A (en) * | 2016-09-28 | 2017-02-01 | 同济大学 | Novel shock insulation system suitable for medium and small-span beam bridges |
| CN206438384U (en) * | 2016-12-16 | 2017-08-25 | 同济大学 | A kind of horizontal shock-absorbing construction for being applied to conventional beam bridge |
| CN209508804U (en) * | 2018-12-31 | 2019-10-18 | 云南功东高速公路建设指挥部 | A kind of steel construction fixture block bridge anti-fall girder apparatus using displacement energy consumption |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110777640A (en) * | 2019-11-07 | 2020-02-11 | 湘潭大学 | Suspension cavity structure high-energy-consumption bridge anti-seismic stop block |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209508804U (en) | A kind of steel construction fixture block bridge anti-fall girder apparatus using displacement energy consumption | |
| CN106638286A (en) | Tension-resisting anti- beam-falling combined shock insulation device and construction method thereof | |
| CN203429554U (en) | Separating seismic mitigation and absorption supporting system for pier | |
| CN101922158B (en) | Device and method for integrally underpinned vibration isolation device of subway underpass building foundation | |
| CN106567325A (en) | Combined type anti-falling beam and collision device | |
| CN109853369A (en) | A kind of steel construction fixture block bridge anti-fall girder apparatus using displacement energy consumption | |
| CN1264776A (en) | Vertical earthquake isolating equipment for engineering structure | |
| CN203475641U (en) | Bending constraint stiffening rib steel plate shear wall | |
| CN101638876B (en) | Rail anchor isolator for railroad tie | |
| CN205676895U (en) | A kind of slow pool deepwater foundation construction Large-diameter Steel casing leading truck | |
| CN210657965U (en) | Bridge supporting structure | |
| CN104313995A (en) | Three-direction composite position limiting device | |
| CN201713800U (en) | Transitional drilling platform | |
| CN203821227U (en) | Embedded bridge anti-seismic stopping block | |
| JP2012167492A (en) | Intermediate layer base-isolated building | |
| CN108487529A (en) | A kind of three-dimensional vibration isolation floor construction | |
| CN212926181U (en) | Basement roof antidetonation induced seam structure | |
| JP2008088780A (en) | Intermediate layer base-isolated building | |
| CN204626641U (en) | A kind of suspension type building body | |
| CN211548178U (en) | Building shock insulation structure | |
| CN207277221U (en) | A kind of board-like windbreak of L-type column | |
| JPH11152928A (en) | Base isolation building and method of base isolating construction of existing building | |
| CN208884574U (en) | A kind of prestressed pavement flap support structure | |
| CN208501722U (en) | A kind of stone structure Gu decorated archway base isolation system | |
| CN215911795U (en) | Top layer shock insulation's transformer substation structure under earthing space |
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 |