CN110004820A - A kind of seamless antidetonation abutment with separate type attachment strap - Google Patents
A kind of seamless antidetonation abutment with separate type attachment strap Download PDFInfo
- Publication number
- CN110004820A CN110004820A CN201910232118.XA CN201910232118A CN110004820A CN 110004820 A CN110004820 A CN 110004820A CN 201910232118 A CN201910232118 A CN 201910232118A CN 110004820 A CN110004820 A CN 110004820A
- Authority
- CN
- China
- Prior art keywords
- attachment strap
- separate type
- abutment
- type attachment
- seamless
- 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
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
- E01D19/02—Piers; Abutments ; Protecting same against drifting ice
-
- 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
- E01D19/06—Arrangement, construction or bridging of expansion joints
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
A kind of seamless antidetonation abutment with separate type attachment strap, including diaphragm, bridge pier, pile foundation, retaining wall and sleeper beam, the diaphragm is located on bridge pier, the bridge pier is located in pile foundation, the sleeper beam is located at retaining wall rear, the abutment further includes separate type attachment strap, and separate type attachment strap one end is placed on sleeper beam, and the separate type attachment strap other end and diaphragm are seamlessly connected.The present invention provides one kind, cost is relatively low, the seamless antidetonation abutment with separate type attachment strap of better economy.
Description
Technical field
The present invention relates to science of bridge building field, specially a kind of seamless antidetonation abutment with separate type attachment strap.
Background technique
It, can be by Static Calculation schema certainly to make bridge span structure under load, temperature change, creep and shrinkage of concrete effect
By deforming, bridge is both needed to the expansion joint of setting support and lateral direction penetrating full-bridge.Expansion joint increases bridge construction using one side
Cost, be the weak spot of full-bridge at another aspect expansion joint, such as caused extrusome and anchor by vehicular impact load repeated action
Firmware fatigue, late maintaining works not in place etc. in addition, can cause bridge early damage, reduce the service life, and investigation shows each
There is the above problem to varying degrees in state's bridge on highway.
Engineering circles have paid great human and material resources to solve this problem and have developed various high performance flexible dresses for many years
It sets, centainly produces effects though having, very unsatisfactory, this problem does not solve still so far, and it is difficult to become a big technology in science of bridge building
Topic.Scholars make great efforts to seek best expanded joint structure, finally obtain: " best expanded joint structure is exactly jointless ",
It is then fundamentally to solve the phenomenon that bridge is damaged due to expansion joint, undoubtedly to public affairs if jointless bridge can be built up
The big contribution of the one of road bridge construction.
On this basis, jointless bridge starts to grow up, and current seamless bridge is broadly divided into extension bridge panel seamless
Bridge, semi-integral bridge abutment, Integral Abutment.The development of seamless bridge achieves extraordinary benefit really, but facts proved that also
It is there are many problems, the performance that the abutment that conventional seamless bridge uses is showed in many earthquake territories is not especially excellent
It is different, for example under weak shock, abutment provides bridge displacement very big effect of contraction, so that bridge flexibility is significantly limited.Furthermore
Traditional abutment pile body is in the environment of backfill encirclement, in order to reach the design service life of structure, considers stake in design
A certain amount of surface corrosion loss of body, also means that the quantity for increasing stake, soil pressure suffered by bridge longitudinal direction increase, therefore pass
Abutment of uniting not is cost-effective.
If traditional bridge will bear longitudinal big displacement quantity without destroying, cost is very expensive；If born laterally big
Displacement is then difficult to realize without destroying.
Summary of the invention
Higher cost, economy in order to overcome the shortcomings of existing antidetonation abutment is poor, and the present invention provides a kind of costs
Lower, better economy the seamless antidetonation abutment with separate type attachment strap,
The technical solution adopted by the present invention to solve the technical problems is:
A kind of seamless antidetonation abutment with separate type attachment strap, including diaphragm, bridge pier, pile foundation, retaining wall and sleeper beam, it is described
Diaphragm is located on bridge pier, and the bridge pier is located in pile foundation, and the sleeper beam is located at retaining wall rear, it is characterised in that: the bridge
Platform further includes separate type attachment strap, and separate type attachment strap one end is placed on sleeper beam, the separate type attachment strap other end and tabula
Beam seamless connection.
Further, expansion joint is set between the separate type attachment strap and sleeper beam.
Preferably, the expansion joint is stretched joint filling using a kind of asphalt mixture, by elastomer-modified adhesive and
Aggregate composition.
The elastomer-modified adhesive includes pitch, polymer, filler and surfactant, and aggregate comes from basalt,
Sand grains or granite group.
The asphalt mixture stretches joint filling normal width 50mm, stitches depth 75mm or more, can bear maximum displacement ± 25mm.
Further, separate type attachment strap has a circular arc chamfering in sleeper beam side tail end, sleeper beam and attachment strap lap-joint be arc and
Not fully it is bonded.
There is setting sand grains glide lamella in the vertical lap-joint of the sleeper beam and attachment strap.
The separate type attachment strap and diaphragm are equipped with connection reinforcing bar.
At the separate type attachment strap and diaphragm seamless connection, using rubber asphalt joint filling, cuts zigzag gap and heat is poured
Rubber asphalt.
The diaphragm is whole diaphragm.
The monoblock type diaphragm is placed on shock isolating pedestal, and is supported by the bridge pier before retaining wall.
The bridge pier is connect by pile cover with pile foundation, does not have backfill filling between the bridge pier and retaining wall.
The separate type attachment strap and sleeper beam material are concrete.The connection bar diameter should meet design requirement and along bridge
Platform transverse direction is spaced apart.The abutment is not provided with shear connector.The shock isolating pedestal is lead core rubber support (LRB), is mentioned
High superstructure damping, enhances bridge horizontal deformation, effectively absorption seismic energy.
Beneficial effects of the present invention are mainly manifested in: 1, it is not provided with shear connector, constraint dies down, and displacement deformation increases, but
It is the novel bridge using shock isolating pedestal LRB, LRB, that is, lead rubber laminated bearing, horizontal direction deformability is good, can absorb a large amount of
Seismic energy, and when bridge occurs large deformation and generates big displacement quantity, the starting of separate type attachment strap, sleeper beam locality specific is not required to
Expensive modularity expansion gap device is wanted, just can be born without prejudice to applicability and anti-seismic performance standard vertically and horizontally big
Displacement；2, there is no backfill encirclement around the seamless antidetonation abutment pile body, soil pressure against piles substantially reduce, abutment longitudinal stress drop
Low 65%-85%, and pile body surface corrosion loss is greatly reduced, to reduce pile body quantity, is reduced costs.
Detailed description of the invention
Fig. 1 is the partial structural diagram of the seamless antidetonation abutment with separate type attachment strap
Fig. 2 is the cross-section diagram of the seamless antidetonation abutment with separate type attachment strap
Fig. 3 is separate type attachment strap connection detail structure figure
In diagram, 1 separate type attachment strap, 2 sleeper beams, 3 retaining walls, 4 monoblock type diaphragms, 5 lead rubber laminated bearing LRB, 6
Bridge pier, 7 pile covers, 8 pile foundations, 9 rubber asphalt joint fillings, 10 connection reinforcing bars, 11 asphalt mixtures stretch joint filling, 12 sand grains glide lamellas.
Specific embodiment
The invention will be further described below in conjunction with the accompanying drawings.
Referring to Fig.1~Fig. 3, a kind of seamless antidetonation abutment with separate type attachment strap, including diaphragm 4, shock isolating pedestal 5, bridge
Pier 6, pile foundation 8, retaining wall 3, separate type attachment strap 1 and sleeper beam 2, the diaphragm 4 are located on bridge pier 6, and the bridge pier 6 is located at pile foundation
On 8, the sleeper beam 2 is located at 3 rear of retaining wall；Such as the sleeper beam 2 can be located on 3 rear blotter of retaining wall.
Described 1 one end of separate type attachment strap is placed on sleeper beam 2, and the other end and diaphragm 4 are seamlessly connected.The separate type is taken
Expansion joint is set between plate 1 and sleeper beam 2, and there is sand grains glide lamella 12 in vertical lap-joint；The separate type attachment strap 1 and 4 nothing of diaphragm
Seam connection, the separate type attachment strap 1 are equipped with connection reinforcing bar 10 with diaphragm 4, and the diaphragm 4 is placed on shock isolating pedestal 5, and
It is supported by the bridge pier 6 before retaining wall 3, the bridge pier 6 is supported by pile foundation 8 and pile cover 7, between the pier column 6 and retaining wall 3
There is no backfill filling.
Preferably, the expansion joint is using a kind of flexible joint filling 11 of asphalt mixture, by elastomer-modified adhesive
It is formed with aggregate.
The elastomer-modified adhesive includes pitch, polymer, filler and surfactant, and aggregate comes from basalt,
Sand grains or granite group.
The asphalt mixture stretches joint filling normal width 50mm, stitches depth 75mm or more.Can bear maximum displacement ±
25mm。
Further, separate type attachment strap 1 has circular arc chamfering in sleeper beam side tail end, and sleeper beam 2 and 1 lap-joint of attachment strap are arc
And it is not fully bonded.There is setting sand grains glide lamella 12 in the vertical lap-joint of the sleeper beam 2 and attachment strap 1.
The separate type attachment strap 1 is equipped with connection reinforcing bar 10 with diaphragm 4.The separate type attachment strap 1 and the seamless company of diaphragm 4
Place is met, using rubber asphalt joint filling, zigzag gap is cut and heat pours rubber asphalt.The diaphragm 4 is whole diaphragm.
The monoblock type diaphragm is placed on shock isolating pedestal 5, and is supported by the bridge pier before retaining wall.The shock insulation branch
Seat is lead core rubber support (LRB), improves superstructure damping, enhances bridge horizontal deformation, effectively absorption earthquake
Energy.
The bridge pier 6 leads to pile cover 7 and connect with pile foundation 8, does not have backfill filling between the bridge pier 6 and retaining wall 3.
The separate type attachment strap 1 and 2 material of sleeper beam are concrete.10 diameter of connection reinforcing bar should meet design requirement simultaneously
It is spaced apart along abutment transverse direction.The abutment is not provided with shear connector.
In the construction process, abutment and retaining wall 3 can construct the embodiment of the present invention simultaneously, accelerate construction progress,
Save time cost.
On the one hand, abutment construction is carried out, after the completion of 8 pile cover 7 of pile foundation, formwork pours bridge pier 6, then disposes shock isolating pedestal
5, the shock isolating pedestal 5 is lead core rubber support (LRB), improves superstructure damping, enhances bridge horizontal deformation,
Seismic energy is effectively absorbed, then prefabricated monoblock type diaphragm 4 is placed on shock isolating pedestal.
On the other hand, while abutment is constructed, start retaining wall 3 at a certain distance from abutment rear and construct, abutment and gear
There is no backfill between cob wall 3.
The compacting of 3 rear soil layer of retaining wall, it is levelling, one layer of blotter is then done, it is levelling, precast concrete sleeper beam 2 is disposed,
Separate type attachment strap has circular arc chamfering in sleeper beam side tail end, and sleeper beam cross sectional shape is as shown in Figure of description 3, with attachment strap lap-joint
It for arc and is not fully bonded, there are gaps.
Finally prefabricated 1 one end of separating concrete attachment strap is shelved on monoblock type diaphragm 4, junction rubber asphalt
Joint filling 9 is handled, and cuts zigzag gap and heat pours rubber asphalt, and with diameter meets design requirement and along abutment transverse direction interval
The connection reinforcing bar 10 of distribution connects diaphragm 4 and attachment strap 1；The other end is shelved on sleeper beam 2, and attachment strap is connect using drip with sleeper beam
Green mixture stretches joint filling 11, and there is setting sand grains glide lamella 12 in vertical lap-joint.
The scheme of this implementation, lead rubber laminated bearing LRB cost improve 10-50%, but for totle drilling cost
1-2% is only improved, is not had much affect, but improves the damping of superstructure, isolating affection is significant, and foundation cost reduces
30-60%；Without abutment pedestal, ear wall, retaining wall, shear connector, substructure cost reduces 50-70%.
Therefore the construction of retaining wall can be accelerated construction progress independently of the construction of independent abutment, save the construction time and
Cost；For traditional abutment of high inclination, earth-retaining corner details becomes wall of turning back that is complicated, or ultimately forming expensive, independent
Abutment can overcome this complexity and save cost.
For isolated abutment, the area of retaining wall increases, and backfill volume is reduced；Therefore, in the relevant place of weak soil,
Overall cost can be saved.
Engineer application: as a part of gate engineering and southern frazier periphery highway engineering (No. 17 highways), Vancouver
City has built a bearing with lead core Isolating Platform structure, is a high inclination three across viaduct.
The present invention is not limited to above-mentioned implementation, and protection scope of the present invention should not be limited to what embodiment was stated
Implementation, protection scope of the present invention, it should also including any other various equivalent skills obtained under the inspiration of the present invention
Art means.
Claims (10)
1. a kind of seamless antidetonation abutment with separate type attachment strap, including diaphragm, bridge pier, pile foundation, retaining wall and sleeper beam, the cross
It is located on bridge pier every beam, the bridge pier is located in pile foundation, and the sleeper beam is located at retaining wall rear, it is characterised in that: the abutment
It further include separate type attachment strap, separate type attachment strap one end is placed on sleeper beam, the separate type attachment strap other end and diaphragm
Seamless connection.
2. a kind of seamless antidetonation abutment with separate type attachment strap as described in claim 1, which is characterized in that the separate type is taken
Expansion joint is set between plate and sleeper beam.
3. a kind of seamless antidetonation abutment with separate type attachment strap as claimed in claim 2, which is characterized in that adopt at the expansion joint
It is a kind of flexible joint filling of asphalt mixture, is made of elastomer-modified adhesive and aggregate.
4. a kind of seamless antidetonation abutment with separate type attachment strap as claimed in claim 3, which is characterized in that the elasticity structural reform
Property adhesive include pitch, polymer, filler and surfactant, aggregate comes from basalt, sand grains or granite group.
5. a kind of seamless antidetonation abutment with separate type attachment strap as claimed in claim 3, which is characterized in that the pitch mixing
Object stretches joint filling normal width 50mm, stitches depth 75mm or more, can bear maximum displacement ± 25mm.
6. a kind of seamless antidetonation abutment with separate type attachment strap as described in one of Claims 1 to 5, which is characterized in that described
Separate type attachment strap has circular arc chamfering in sleeper beam side tail end, and sleeper beam is arc with attachment strap lap-joint and is not fully bonded.
7. a kind of seamless antidetonation abutment with separate type attachment strap as described in one of Claims 1 to 5, which is characterized in that described
There is setting sand grains glide lamella in the vertical lap-joint of sleeper beam and attachment strap.
8. a kind of seamless antidetonation abutment with separate type attachment strap as described in one of Claims 1 to 5, which is characterized in that described
Separate type attachment strap and diaphragm are equipped with connection reinforcing bar.
9. a kind of seamless antidetonation abutment with separate type attachment strap as described in one of Claims 1 to 5, which is characterized in that described
At separate type attachment strap and diaphragm seamless connection, using rubber asphalt joint filling, cuts zigzag gap and heat pours rubber asphalt.
10. a kind of seamless antidetonation abutment with separate type attachment strap as described in one of Claims 1 to 5, which is characterized in that described
Monoblock type diaphragm is placed on shock isolating pedestal, and is supported by the bridge pier before retaining wall；The bridge pier passes through pile cover and pile foundation
Connection, does not have backfill filling between the bridge pier and retaining wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910232118.XA CN110004820A (en) | 2019-03-26 | 2019-03-26 | A kind of seamless antidetonation abutment with separate type attachment strap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910232118.XA CN110004820A (en) | 2019-03-26 | 2019-03-26 | A kind of seamless antidetonation abutment with separate type attachment strap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110004820A true CN110004820A (en) | 2019-07-12 |
Family
ID=67168194
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910232118.XA Pending CN110004820A (en) | 2019-03-26 | 2019-03-26 | A kind of seamless antidetonation abutment with separate type attachment strap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110004820A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110777646A (en) * | 2019-12-02 | 2020-02-11 | 深圳市市政设计研究院有限公司 | Bridge abutment without expansion joint |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20000044700A (en) * | 1998-12-30 | 2000-07-15 | 유성용 | Method of constructing cyclic control plug joint for allowing displacement of integrated bridges |
| KR20050030057A (en) * | 2003-09-24 | 2005-03-29 | 주식회사 용마엔지니어링 | Method for constructing semi-integral abutment bridge |
| CN102121226A (en) * | 2011-04-02 | 2011-07-13 | 北京工业大学 | Earthquake-resistant bridge abutment with flexible walls |
| KR101653606B1 (en) * | 2015-09-25 | 2016-09-02 | 우경기술주식회사 | Method for constructing integral abutment bridge |
| KR101888590B1 (en) * | 2017-04-28 | 2018-08-14 | 한국도로공사 | Monolithic reinforced-earth abutment and method for constructing the same |
| CN211171579U (en) * | 2019-03-26 | 2020-08-04 | 浙江工业大学 | Take seamless antidetonation abutment of disconnect-type strap |
-
2019
- 2019-03-26 CN CN201910232118.XA patent/CN110004820A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20000044700A (en) * | 1998-12-30 | 2000-07-15 | 유성용 | Method of constructing cyclic control plug joint for allowing displacement of integrated bridges |
| KR20050030057A (en) * | 2003-09-24 | 2005-03-29 | 주식회사 용마엔지니어링 | Method for constructing semi-integral abutment bridge |
| CN102121226A (en) * | 2011-04-02 | 2011-07-13 | 北京工业大学 | Earthquake-resistant bridge abutment with flexible walls |
| KR101653606B1 (en) * | 2015-09-25 | 2016-09-02 | 우경기술주식회사 | Method for constructing integral abutment bridge |
| KR101888590B1 (en) * | 2017-04-28 | 2018-08-14 | 한국도로공사 | Monolithic reinforced-earth abutment and method for constructing the same |
| CN211171579U (en) * | 2019-03-26 | 2020-08-04 | 浙江工业大学 | Take seamless antidetonation abutment of disconnect-type strap |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110777646A (en) * | 2019-12-02 | 2020-02-11 | 深圳市市政设计研究院有限公司 | Bridge abutment without expansion joint |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106522270B (en) | A kind of the pile foundation barricade antidetonation retaining structure and construction method of the buffer layer containing EPS | |
| CN110512647B (en) | Partial assembly type subway station structure design and construction method | |
| CN101173495A (en) | Thick collapsible loess subgrade groundwork structure | |
| CN107142856A (en) | Bridge pier and the bridge of lifting reconstruction that abutment remodeling method, abutment, abutment are transformed | |
| CN107190635A (en) | Concrete-filled steel tube with dumbbell sections assembled pier and the connection structure and method with cushion cap | |
| CN201125355Y (en) | Deep collapsible loess road bed foundation structure | |
| CN110004820A (en) | A kind of seamless antidetonation abutment with separate type attachment strap | |
| CN211171579U (en) | Take seamless antidetonation abutment of disconnect-type strap | |
| CN105908618B (en) | A kind of mountable double-deck transition slab at bridge head structure and construction method | |
| CN110735394A (en) | Cable tower structure and construction method thereof | |
| CN205295920U (en) | An area supporting beam's thin wall abutment structure | |
| CN212926181U (en) | Basement roof antidetonation induced seam structure | |
| CN208122451U (en) | Large-scale cast-in-place pond is split in expansion reinforcing band control | |
| CN210827532U (en) | Shock insulation and absorption structure of large-scale test equipment | |
| CN210117724U (en) | Garage foundation structure | |
| CN209637137U (en) | The fixed lower end in upper end, which is slidably connected, supports Anti-seismic assembled stair | |
| CN103437252B (en) | A kind of track bed structure and construction method thereof | |
| CN206346220U (en) | A kind of pile foundation barricade antidetonation retaining structure of the cushion containing EPS | |
| CN216809534U (en) | Bridge head road section road structure | |
| CN216712710U (en) | Combined filling roadbed bridge abutment structure and bridge comprising same | |
| CN209891553U (en) | Steel structure vertical member bottom shear-resistant stiffening key | |
| CN110468868A (en) | A kind of the earthquake isolation structure and method of large-scale experiment equipment | |
| CN215105115U (en) | A antidetonation reinforced structure for dam body | |
| CN114109067B (en) | Old wall protection and reinforcement method | |
| CN220225798U (en) | Built-in hidden rubble wall body with steel frame |
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 |