CN109338877A - A kind of fast changeable precast bridge expansion gap device and its mounting structure - Google Patents
A kind of fast changeable precast bridge expansion gap device and its mounting structure Download PDFInfo
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- CN109338877A CN109338877A CN201811504098.9A CN201811504098A CN109338877A CN 109338877 A CN109338877 A CN 109338877A CN 201811504098 A CN201811504098 A CN 201811504098A CN 109338877 A CN109338877 A CN 109338877A
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- Prior art keywords
- gap device
- precast bridge
- bridge expansion
- expansion gap
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- 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
Abstract
The invention discloses a kind of fast changeable precast bridge expansion gap devices, the armored concrete mounting blocks being arranged including expansion joint main body and two lateral edge expansion joint main body length direction of expansion joint main body, armored concrete mounting blocks upper surface is flushed with expansion joint main body upper surface, and armored concrete mounting blocks upper surface is provided with counter sink along expansion joint main body length direction array.The invention also discloses a kind of mounting structures of fast changeable precast bridge expansion gap device.Using precast bridge expansion gap device disclosed by the invention and its mounting structure, the quick-replaceable at expansion joint can be realized, to reduce the influence to vehicle pass-through.
Description
Technical field
The present invention relates to bridge field more particularly to a kind of fast changeable precast bridge expansion gap devices and its installation
Structure.
Background technique
Development is more swift and violent in terms of road highway in recent years, and mileage open to traffic and bridge quantity are also being skyrocketed through, highway
The volume of traffic increased dramatically, and Vehicle Speed and vehicle axle weight are continuously increased, and expansion joint is more prominent there is a situation where destroying, sternly
Ghost image rings traffic safety and comfort.The method for repairing telescopic device, according to the size of traffic volume of highway and the type of bridge structure
Formula is different.In general, expansion joint is mostly happens is that local failure, but while replacing all is integral replacing, so not only
Traffic organization when wasting a lot of manpower and material resources, and changing is relatively difficult, especially high-grade highway, the magnitude of traffic flow
Big and speed is high, and expansion joint is frequently necessary to carry out traffic control when repairing, and often results in undesirable social influence and economic consequences,
It is that bridge management department will avoid as possible.
Many technical problems caused by bridge expanssion joint damages, financial burden and social concern are also increasingly significant, how needle
To the damage feature of highway and bridge expanssion joint, in the case where influencing vehicle pass-through less as far as possible, completes impaired bridge and stretch
The quick-replaceable of contracting seam and reparation are that bridge maintenance administrative department must face and technical problem urgently to be solved.
Summary of the invention
In view of the above shortcomings of the prior art, the technical problem to be solved by the present invention is what kind of bridge expanssion joint
Structure design is more advantageous in the case where influencing vehicle pass-through less as far as possible, completes the quick-replaceable of impaired bridge expanssion joint.
In order to solve the above technical problems, present invention employs the following technical solutions:
A kind of fast changeable precast bridge expansion gap device, including expansion joint main body and two lateral edge of expansion joint main body are stretched
The armored concrete mounting blocks of contracting seam main body length direction setting, armored concrete mounting blocks upper surface and expansion joint main body upper end
Face flushes, and armored concrete mounting blocks upper surface is provided with counter sink along expansion joint main body length direction array.
Preferably, the reinforcing bar in reinforced concrete mounting blocks includes transverse steel and longitudinal reinforcement, and transverse steel is along flexible
The setting of body width direction parallel interval is stitched, longitudinal reinforcement is arranged along expansion joint main body length direction parallel interval.
Preferably, the transverse steel is C-type steel muscle, and the longitudinal reinforcement is straight line steel bar, and C-type steel muscle both ends are solid
Surely it is connected on the main body lateral surface of expansion joint and both ends is on same vertical plane, annulus of the straight line steel bar from C-type steel muscle
It is passed through in domain.
Preferably, the precast bridge expansion gap device is disconnected along the first preset length of expansion joint main body length direction interval
Form multiple precast bridge expansion gap device units, each precast bridge expansion gap device unit carry out splicing constitute it is described prefabricated
Bridge expansion joint installation.
Preferably, the thickness of armored concrete mounting blocks is greater than the thickness of expansion joint main body, two precast bridge expansion joints dress
Set junction between unit section extend downwardly preset thickness from precast bridge expansion gap device upper surface after, again towards prefabricated
Bridge expansion joint installation element length direction be laterally extended the second preset length after, extend to armored concrete mounting blocks still further below
Lower end surface, the preset thickness are greater than the thickness of expansion joint main body and are less than the thickness of armored concrete mounting blocks, and described second
Preset length is less than the first preset length of half, and the position of counter sink is between two precast bridge expansion gap device units
The lateral section part of junction.
Preferably, it includes multiple prefabricated for constituting the precast bridge expansion gap device unit of the precast bridge expansion gap device
Bridge expansion joint installation temporary location and precast bridge expansion gap device end unit, precast bridge expansion gap device temporary location
Including T-type precast bridge expansion gap device temporary location and ⊥ type precast bridge expansion gap device temporary location, T-type precast bridge
The upper and lower end faces and section of the armored concrete mounting blocks of expansion gap device temporary location surround T-type, and ⊥ type precast bridge is stretched
The upper and lower end faces and section of the armored concrete mounting blocks of contracting seam device temporary location surround ⊥ type, and T-type precast bridge is flexible
The connection alternate with ⊥ type precast bridge expansion gap device temporary location of seam device temporary location forms precast bridge expansion gap device
Interlude；Precast bridge expansion gap device end unit includes that L-type precast bridge expansion gap device end unit and/or Γ type are pre-
Bridge expansion joint installation end unit processed, the armored concrete mounting blocks of L-type precast bridge expansion gap device end unit it is upper
Lower both ends of the surface, side and section surround L-type, the armored concrete mounting blocks of Γ type precast bridge expansion gap device end unit
Upper and lower end faces, side and section surround Γ type, if precast bridge expansion gap device interlude end be T-type precast bridge
Expansion gap device temporary location, then L-type precast bridge expansion gap device end unit is connect with this end, if precast bridge is flexible
Seam device interlude end is ⊥ type precast bridge expansion gap device temporary location, then Γ type precast bridge expansion gap device end
Unit is connect with this end.
A kind of mounting structure of fast changeable precast bridge expansion gap device, the mounting structure are above-mentioned for installing
Fast changeable precast bridge expansion gap device, including bridge pavement gap along bridge width direction setting installation
Slot, the fast changeable precast bridge expansion gap device are fixedly mounted on mounting groove by the threaded connector in counter sink
Interior, the area filling between fast changeable precast bridge expansion gap device side and mounting groove side has bonding agent.
It preferably, further include balance sleeper, balance sleeper is mounted on described along expansion joint main body length direction parallel interval
Between fast changeable precast bridge expansion gap device and installation groove bottom；Balance sleeper upper surface, which is fixedly installed with, vertically to be set
The installation screw rod set, when precast bridge expansion gap device is mounted on balance sleeper, installation screw rod passes through counter sink, passes through peace
Precast bridge expansion gap device is fixedly connected by the mode that loading nut is connect with installation screw flight with balance sleeper；Balance sleeper
Lower end surface is fixedly installed with vertically arranged balance screw rod, balances and is equipped with balance nut on screw rod, and mounting groove is equipped with aperture
It less than the location hole of balance nut inscribed circle, balances screw rod lower end and is inserted into positioning hole, by the position of adjustment nut, adjust
The quantity of the balance gasket of the quantity or adjustment nut and balance sleeper lower end surface of section balance nut can be quick to level
The precast bridge expansion gap device of replacement.
Preferably, it balances and is equipped with blotter between sleeper lower end surface and installation groove bottom.
Preferably, the bonding agent is epoxy resin.
In conclusion the invention discloses a kind of fast changeable precast bridge expansion gap device, including expansion joint master
Body and the armored concrete mounting blocks of two lateral edge expansion joint main body length direction of expansion joint main body setting, armored concrete mounting blocks
Upper surface is flushed with expansion joint main body upper surface, and armored concrete mounting blocks upper surface is set along expansion joint main body length direction array
It is equipped with counter sink.The invention also discloses a kind of mounting structures of fast changeable precast bridge expansion gap device.Using this
The precast bridge expansion gap device and its mounting structure of disclosure of the invention, can be realized the quick-replaceable at expansion joint, thus reduction pair
The influence of vehicle pass-through.
Detailed description of the invention
Fig. 1 is a kind of structure of a kind of embodiment of fast changeable precast bridge expansion gap device disclosed by the invention
Schematic diagram；
A kind of Fig. 2 structure of another embodiment of fast changeable precast bridge expansion gap device disclosed by the invention
Schematic diagram；
Fig. 3 is a kind of a kind of mounting means schematic diagram of embodiment of precast bridge expansion gap device unit；
Fig. 4 is the section scheme of installation of the another embodiment of precast bridge expansion gap device unit；
Fig. 5 is a kind of a kind of reality of the mounting structure of fast changeable precast bridge expansion gap device disclosed by the invention
Illustration is applied to be intended to；
Fig. 6 is the schematic diagram for balancing a kind of embodiment of sleeper.
Description of symbols: expansion joint main body 1, armored concrete mounting blocks 2, counter sink 3, C-type steel muscle 4, straight line fashioned iron
Muscle 5, precast bridge expansion gap device unit 6, T-type precast bridge expansion gap device temporary location 7, ⊥ type precast bridge expansion joint
Device temporary location 8, L-type precast bridge expansion gap device end unit 9, Γ type precast bridge expansion gap device end unit
10, mounting groove 11, bonding agent 12, balance sleeper 13, installation screw rod 14, balance screw rod 15, balance nut 16, blotter 17.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with attached drawing to the present invention make into
The detailed description explanation of one step.
As shown in Figure 1, the invention discloses a kind of fast changeable precast bridge expansion gap device, including expansion joint master
Body and the armored concrete mounting blocks of two lateral edge expansion joint main body length direction of expansion joint main body setting, armored concrete mounting blocks
Upper surface is flushed with expansion joint main body upper surface, and armored concrete mounting blocks upper surface is set along expansion joint main body length direction array
It is equipped with counter sink.
Fast changeable its mounting structure of precast bridge expansion gap device disclosed by the invention includes that bridge pavement disconnects
The mounting groove along the setting of bridge width direction at place, the fast changeable precast bridge expansion gap device pass through in counter sink
Threaded connector be fixedly mounted in mounting groove, fast changeable precast bridge expansion gap device side and mounting groove side
Between area filling have bonding agent.
The precast bridge expansion gap device can complete in factory in advance, need replacing expansion joint main body in bridge
When directly replaced, it is simple to operate, avoid the poured in place concrete on bridge, save a large amount of construction times,
Reduce the influence to bridge floor vehicle pass-through.Expansion joint main body in the precast bridge expansion gap device can use dock
Any one expansion joint main body in the expansion joints main bodys such as expansion joint main body, comb-tooth-type expansion joint main body, modulus type expansion joint main body.
The concrete of varying strength and type can be used in armored concrete mounting blocks.
When it is implemented, the reinforcing bar in reinforced concrete mounting blocks includes transverse steel and longitudinal reinforcement, transverse steel edge
The setting of expansion joint body width direction parallel interval, longitudinal reinforcement are arranged along expansion joint main body length direction parallel interval.
Include the reinforcing bar along the setting of two kinds of directions in the present invention, in armored concrete mounting blocks, can be avoided prefabricated bridge
The expansion joint installation of girder destruction that deforms by the stress of all directions in use, extends precast bridge expansion gap device
Service life.
When it is implemented, the transverse steel is C-type steel muscle, the longitudinal reinforcement is straight line steel bar, C-type steel muscle both ends
Portion is fixedly connected on the main body lateral surface of expansion joint and both ends are on same vertical plane, ring of the straight line steel bar from C-type steel muscle
Shape passes through in region.
Precast bridge expansion gap device in use more by the load perpendicular to expansion joint main body length direction,
Using the above structure, it after straight line steel bar is by larger deformation under load, will receive the effect of contraction of C-type steel muscle, avoid continuing to become
Shape increases the integral strength of precast bridge expansion gap device, avoids the fracture of precast bridge expansion gap device, for the people that works
The damage at member's discovery expansion joint and replacement expansion joint provide more plenty of time.
As shown in Fig. 2, when it is implemented, the precast bridge expansion gap device is along expansion joint main body length direction interval
One preset length disconnects forming multiple precast bridge expansion gap device units, and each precast bridge expansion gap device unit is spliced
Constitute the precast bridge expansion gap device.
Using expansion joint use process in, usually will not whole expansion joint damage completely, usually all be damage it is a certain
Part, therefore, in the present invention, precast bridge expansion gap device is composed using multiple precast bridge expansion gap device units,
In this way, can only be replaced to broken parts after the expansion joint damage in a certain portion, save cost in this way, also save
Replacing construction, secondly as whole precast bridge expansion gap device length is longer, manufacture processing and transport difficulty are larger,
According to the mode of segmentation manufacture, processing and transport difficulty can reduce.In addition, can only be realized to the local replacing of broken parts
The influence degree that road is open to traffic is substantially reduced, or even can be carried out in the case where only block part road does not influence normally to be open to traffic
Construction, minimizes the influence that road is open to traffic.Each preset length and thickness can be set according to actual needs in the present invention.
As shown in figure 3, two is pre- when it is implemented, the thickness of armored concrete mounting blocks is greater than the thickness of expansion joint main body
The section of junction extends downwardly default thickness from precast bridge expansion gap device upper surface between bridge expansion joint installation unit processed
After after degree and being laterally extended the second preset length towards precast bridge expansion gap device element length direction, extend to still further below
Armored concrete mounting blocks lower end surface, the preset thickness are greater than the thickness of expansion joint main body and are less than armored concrete mounting blocks
Thickness, second preset length be less than half the first preset length, the position of counter sink is stretched in two precast bridges
The lateral section part of junction between contracting seam device unit.
Counter sink is arranged in lateral section part, is mounted in mounting groove by each precast bridge expansion gap device unit
When, also simultaneously each precast bridge expansion gap device unit can be connected to form an entirety.It is completely perpendicular with directlying adopt
Straight section is compared, and using above-mentioned design, the precast bridge expansion gap device after being installed is an entirety, perpendicular to flexible
The intensity for stitching main body length direction is more preferable, additionally convenient for each precast bridge expansion gap device unit along expansion joint principal length side
To alignment.
As shown in figure 4, when it is implemented, constituting the precast bridge expansion gap device list of the precast bridge expansion gap device
Member includes multiple precast bridge expansion gap device temporary locations and precast bridge expansion gap device end unit, and precast bridge is flexible
Seam device temporary location includes single among T-type precast bridge expansion gap device temporary location and ⊥ type precast bridge expansion gap device
Member, the upper and lower end faces and section of the armored concrete mounting blocks of T-type precast bridge expansion gap device temporary location surround T-type,
The upper and lower end faces and section of the armored concrete mounting blocks of ⊥ type precast bridge expansion gap device temporary location surround ⊥ type, T
The connection alternate with ⊥ type precast bridge expansion gap device temporary location of type precast bridge expansion gap device temporary location forms prefabricated
Bridge expansion joint installation interlude；Precast bridge expansion gap device end unit includes L-type precast bridge expansion gap device end
The reinforcing bar of unit and/or Γ type precast bridge expansion gap device end unit, L-type precast bridge expansion gap device end unit is mixed
Upper and lower end faces, side and the section of solidifying soil mounting blocks surround L-type, the steel of Γ type precast bridge expansion gap device end unit
Upper and lower end faces, side and the section of reinforced concrete mounting blocks surround Γ type, if precast bridge expansion gap device interlude end
Portion is that T-type precast bridge expansion gap device temporary location, then L-type precast bridge expansion gap device end unit and this end connect
It connects, if precast bridge expansion gap device interlude end is ⊥ type precast bridge expansion gap device temporary location, Γ type is prefabricated
Bridge expansion joint installation end unit is connect with this end.
Precast bridge expansion gap device is combined into using precast bridge expansion gap device unit, when certain a part is damaged
When, without being replaced to entire precast bridge expansion gap device, still, due to the difference of section configuration, knot as shown in Figure 3
Structure, it may be desirable to which the precast bridge expansion gap device unit of damage or its adjacent precast bridge expansion gap device are carried out brokenly
The dismounting of bad property.However, according in T-type precast bridge expansion gap device temporary location, ⊥ type precast bridge expansion gap device
Between unit and L-type precast bridge expansion gap device end unit and/or Γ type precast bridge expansion gap device end unit,
The vertical dismounting of all precast bridge expansion gap device units then may be implemented, realize to precast bridge expansion gap device unit
Individually just changed, avoided the damage to unspoiled precast bridge expansion gap device unit, saved cost, also, dismantle and
It is easier for installation, further improve replacement efficiency.
As shown in figure 5, the invention also discloses a kind of mounting structure of fast changeable precast bridge expansion gap device,
The mounting structure is for installing above-mentioned fast changeable precast bridge expansion gap device, including bridge pavement gap
Along the mounting groove of bridge width direction setting, the fast changeable precast bridge expansion gap device passes through the spiral shell in counter sink
Line connector is fixedly mounted in mounting groove, between fast changeable precast bridge expansion gap device side and mounting groove side
Area filling have bonding agent.
When being installed, threaded hole can be directly set in mounting groove, bolt is set in counter sink and is installed,
Can also in mounting groove vertically arranged screw rod, screw rod is inserted into counter sink from the bottom up, it is real that nut is installed above counter sink
Now to the installation of precast bridge expansion gap device.In addition, for the ease of installation, installation groove sidewall and precast bridge expansion gap device
Understood between side there are gap, in order to guarantee the firm of precast bridge expansion gap device, is filled gap using bonding agent.
Using mounting structure disclosed by the invention, the fast assembling-disassembling of precast bridge expansion gap device may be implemented, save a large amount of constructions
Time reduces the influence to bridge floor vehicle pass-through.
As shown in fig. 6, when it is implemented, further including balance sleeper, balance sleeper is parallel along expansion joint main body length direction
Interval is mounted between the fast changeable precast bridge expansion gap device and installation groove bottom；It is solid to balance sleeper upper surface
Dingan County is equipped with vertically arranged installation screw rod, and when precast bridge expansion gap device is mounted on balance sleeper, installation screw rod is worn
Counter sink is crossed, consolidates precast bridge expansion gap device and balance sleeper in such a way that installation nut is connect with installation screw flight
Fixed connection；Balance sleeper lower end surface is fixedly installed with vertically arranged balance screw rod, balances and is equipped with balance nut on screw rod, pacifies
Tankage is equipped with the location hole that aperture is less than balance nut inscribed circle, and positioning hole is inserted into balance screw rod lower end, flat by adjusting
The number of the position of weighing apparatus nut, the quantity of adjustment nut or adjustment nut and the balance gasket of balance sleeper lower end surface
Amount is to level fast changeable precast bridge expansion gap device.
Due to being likely to occur form error when mounting groove or armored concrete mounting blocks manufacture, if directly by armored concrete
Mounting blocks bottom surface is bonded with installation groove bottom, and may result in precast bridge expansion gap device can not be laid flat, so as to cause prefabricated
It shakes in bridge expansion joint installation use process, and then causes safety accident.Therefore, during the installation process, needing will be pre-
The upper surface of bridge expansion joint installation processed is adjusted to level.In the present invention, precast bridge is realized using height-adjustable balance sleeper
The leveling of expansion gap device, with simple, the easy to adjust advantage of structure.
When it is implemented, being equipped with blotter between balance sleeper lower end surface and installation groove bottom.
Blotter is used to support balance sleeper, will balance the stress being subject at the balancing bolt of sleeper lower surface and is distributed to
On entire balance sleeper lower surface, the service life of balance sleeper is extended.The blotter, by the continuous grade of 5~20mm
The rubble composition matched.
When it is implemented, the bonding agent is epoxy resin.
In the present invention, using epoxy resin as bonding agent, epoxy resin has good mechanical property, and chemistry is steady
Qualitative and dimensional stability is high.In addition, epoxy resin can be heated and softened when needing replacing precast bridge expansion gap device
Precast bridge expansion gap device is taken out afterwards, further improves the speed of replacement precast bridge expansion gap device.
Finally, it is stated that the above examples are only used to illustrate the technical scheme of the present invention and are not limiting, although passing through ginseng
According to the preferred embodiment of the present invention, invention has been described, it should be appreciated by those of ordinary skill in the art that can
To make various changes to it in the form and details, without departing from the present invention defined by the appended claims
Spirit and scope.
Claims (10)
1. a kind of fast changeable precast bridge expansion gap device, which is characterized in that including expansion joint main body and expansion joint master
The armored concrete mounting blocks of two lateral edge expansion joint main body length direction of body setting, armored concrete mounting blocks upper surface and flexible
Seam main body upper surface flushes, and armored concrete mounting blocks upper surface is provided with counter sink along expansion joint main body length direction array.
2. precast bridge expansion gap device as described in claim 1, which is characterized in that the reinforcing bar in reinforced concrete mounting blocks
Including transverse steel and longitudinal reinforcement, transverse steel is arranged along expansion joint body width direction parallel interval, and longitudinal reinforcement edge is stretched
Contracting seam main body length direction parallel interval setting.
3. precast bridge expansion gap device as claimed in claim 2, which is characterized in that the transverse steel is C-type steel muscle, institute
Stating longitudinal reinforcement is straight line steel bar, and C-type steel muscle both ends are fixedly connected on the main body lateral surface of expansion joint and both ends are same
On one vertical plane, straight line steel bar is passed through from the annular region of C-type steel muscle.
4. precast bridge expansion gap device as described in claim 1, which is characterized in that precast bridge expansion gap device edge
The first preset length of expansion joint main body length direction interval disconnects forming multiple precast bridge expansion gap device units, each prefabricated bridge
Expansion joint installation of girder unit carries out splicing and constitutes the precast bridge expansion gap device.
5. precast bridge expansion gap device as claimed in claim 4, which is characterized in that two precast bridge expansion gap device units
Between junction section extend downwardly preset thickness from precast bridge expansion gap device upper surface after, and stretched towards precast bridge
Contracting seam device unit length direction be laterally extended the second preset length after, extend to armored concrete mounting blocks lower end still further below
Face.
6. precast bridge expansion gap device as claimed in claim 5, which is characterized in that constitute the precast bridge expansion joint dress
The precast bridge expansion gap device unit set includes multiple precast bridge expansion gap device temporary locations and precast bridge expansion joint
Device end unit, precast bridge expansion gap device temporary location include T-type precast bridge expansion gap device temporary location and ⊥
Type precast bridge expansion gap device temporary location, the armored concrete mounting blocks of T-type precast bridge expansion gap device temporary location
Upper and lower end faces and section surround T-type, the armored concrete mounting blocks of ⊥ type precast bridge expansion gap device temporary location
Upper and lower end faces and section surround ⊥ type, and T-type precast bridge expansion gap device temporary location and ⊥ type precast bridge expansion joint fill
It sets the alternate connection of temporary location and forms precast bridge expansion gap device interlude；Precast bridge expansion gap device end unit includes
L-type precast bridge expansion gap device end unit and/or Γ type precast bridge expansion gap device end unit, L-type precast bridge
Upper and lower end faces, side and the section of the armored concrete mounting blocks of expansion gap device end unit surround L-type, and Γ type is prefabricated
Upper and lower end faces, side and the section of the armored concrete mounting blocks of bridge expansion joint installation end unit surround Γ type, if
Precast bridge expansion gap device interlude end is T-type precast bridge expansion gap device temporary location, then L-type precast bridge is flexible
Seam device end unit is connect with this end, if precast bridge expansion gap device interlude end is ⊥ type precast bridge expansion joint
Device temporary location, then Γ type precast bridge expansion gap device end unit is connect with this end.
7. a kind of mounting structure of fast changeable precast bridge expansion gap device, which is characterized in that the mounting structure is used
It is disconnected in installation fast changeable precast bridge expansion gap device as claimed in any one of claims 1 to 6, including bridge pavement
The mounting groove along the setting of bridge width direction at place is opened, the fast changeable precast bridge expansion gap device passes through counter sink
Interior threaded connector is fixedly mounted in mounting groove, fast changeable precast bridge expansion gap device side and mounting groove side
Area filling between face has bonding agent.
8. the mounting structure for the precast bridge expansion gap device that can be changed quickly as claimed in claim 7, which is characterized in that also
Including balancing sleeper, sleeper is balanced along expansion joint main body length direction parallel interval and is mounted on the fast changeable prefabricated bridge
Between expansion joint installation of girder and installation groove bottom；Balance sleeper upper surface is fixedly installed with vertically arranged installation screw rod, when pre-
When bridge expansion joint installation processed is mounted on balance sleeper, installation screw rod passes through counter sink, passes through installation nut and installation screw rod
Precast bridge expansion gap device is fixedly connected by the mode of threaded connection with balance sleeper；Balance sleeper lower end surface is fixedly installed with
Vertically arranged balance screw rod balances and is equipped with balance nut on screw rod, and it is inscribed less than balance nut that mounting groove is equipped with aperture
Round location hole, balance screw rod lower end are inserted into positioning hole, pass through the position of adjustment nut, the quantity of adjustment nut
Or adjustment nut and the quantity of the balance gasket of balance sleeper lower end surface are stretched to level fast changeable precast bridge
Contracting seam device.
9. the mounting structure for the precast bridge expansion gap device that can be changed quickly as claimed in claim 8, which is characterized in that flat
Blotter is equipped between weighing apparatus sleeper lower end surface and installation groove bottom.
10. the mounting structure for the precast bridge expansion gap device that can be changed quickly as claimed in claim 7, which is characterized in that
The bonding agent is epoxy resin.
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Cited By (4)
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| CN110184908A (en) * | 2019-06-27 | 2019-08-30 | 李永君 | A kind of dedicated extensible member of composite beam bridge |
| CN110184907A (en) * | 2019-06-27 | 2019-08-30 | 李永君 | A kind of steel reinforced concrete combined road-bridge retractor device |
| CN112064497A (en) * | 2020-07-23 | 2020-12-11 | 安徽省交通规划设计研究总院股份有限公司 | Full-assembly type modularized expansion joint |
| CN114673080A (en) * | 2022-04-11 | 2022-06-28 | 四川寰宇富兴科技有限公司 | Novel prefabricated modularized seamless bridge expansion device and construction method thereof |
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Inventor after: He Lei Inventor after: Li Xinxin Inventor after: Zheng Dan Inventor after: Wang Lan Inventor after: Wu Shuangjiang Inventor after: Chen Hao Inventor after: Yang Yundong Inventor after: Wu Zijing Inventor after: Li Qingda Inventor before: Li Xinxin Inventor before: He Lei Inventor before: Zheng Dan Inventor before: Wang Lan Inventor before: Wu Shuangjiang Inventor before: Chen Hao Inventor before: Yang Yundong Inventor before: Wu Zijing Inventor before: Li Qingda |
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Application publication date: 20190215 |