CN208472551U - The construction of abutment rigid frame bridge - Google Patents
The construction of abutment rigid frame bridge Download PDFInfo
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- CN208472551U CN208472551U CN201820924103.0U CN201820924103U CN208472551U CN 208472551 U CN208472551 U CN 208472551U CN 201820924103 U CN201820924103 U CN 201820924103U CN 208472551 U CN208472551 U CN 208472551U
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Abstract
The utility model relates to a kind of constructions of abutment rigid frame bridge, it is characterized by: the construction of the abutment rigid frame bridge includes girder and draws beam, the girder is successively arranged the main abutment of thin-walled with beam interconnecting piece lower section is drawn, cushion cap and pile foundation, the cushion cap and pile foundation are equipped with close to girder side bores slope, earth-retaining time abutment is equipped with below the interconnecting piece for drawing beam and attachment strap, the earth-retaining time abutment close to attachment strap side be filled with platform after banket, the beam rear of drawing is equipped with multiple sequentially connected attachment straps and the sleeper beam being located between attachment strap below expansion joint (E.J.), light material is filled between the main abutment of the thin-walled and earth-retaining time abutment.The utility model advantage is: the main abutment of thin-walled can fully absorb the deformation of girder using thin-walled lightweight construction, reduce the stressing influence to abutment；Abutment failure by shear can be effectively reduced and prevent attachment strap after bridge platform from settling, ensure driving ride comfort and comfort.
Description
Technical field:
The utility model relates to foundation engineerings, science of bridge building field, deform more particularly, to absorption bridge main beam, take after platform
Plate analysis by sedimentation and control measure field；Especially a kind of construction of abutment rigid frame bridge.
Background technique:
With the development of China's road traffic cause and being continuously increased for engineering quantity, abutment is sent out in the Common Diseases of bridge
The problem of attachment strap occurs sedimentation and destroys after raw failure by shear and platform is especially pronounced, which can usually cause the bridges such as bumping at bridge-head
The common disease of beam will affect safety and the comfort of driving particularly with the demanding bridge road of passage, while can drop
The life cycle management of low bridge beam increases the maintenance costs of bridge.For attachment strap valve pit subsidence after Abutment generation failure by shear, platform
And the defect phenomenons such as bumping at bridge-head, take corresponding effective measures imperative to solve these problems.Most of existing bridge
For the conventional bridge such as simply supported girder bridge, continuous bridge, rigid frame bridge, arch bridge, cable-stayed bridge and suspension bridge, the abutment of traditional bridge mainly by
The vertical load that girder generates, pressure of banketing after moment of flexure and platform, and abutment rigid frame bridge can carry out the force-bearing situation of abutment
Separation, the main abutment of thin-walled are primarily subjected to the moment of flexure that vertical load and girder generate, and pressure of banketing after platform is then by earth-retaining time abutment
It bears.Such way can make the force-bearing situation of the main abutment of thin-walled, earth-retaining time abutment simpler, clear, therefore two
The size of abutment can be done smaller.
For the deformation that bridge main beam generates under temperature action and external force load, there is no effectively methods to solve
Certainly, it is common practice to expansion joint and telescopic device are set at Bridge Pier, absorb master using the deformation of expansion gap device
The deformation of beam, but there is very big drawback in the way.Telescopic device is easy to generate under carload, temperature action broken
It is bad, to cause driving irregularity.These methods cannot solve this problem from stress, and abutment rigid frame bridge way is to make bridge
Beam girder draws beam and the main abutment of thin-walled integrally consolidates, and the deformation that bridge main beam generates under temperature action and external force load can be with
It is absorbed by the main abutment of thin-walled, to be greatly reduced influence of the bridge deformation to banketing after platform.
In order to from mechanical mechanism eliminate abutment failure by shear and attachment strap settlement issues, guarantee driving safety with
Comfort, spy propose the construction of abutment rigid frame bridge.The basic principle of the construction measure: one is bridge main beam, draw beam and
The main abutment consolidation of thin-walled is integral, expansion joint and the telescopic device of the main Abutment of thin-walled is eliminated, so that the globality of bridge is more
By force, and the deformation that generates under temperature action and external force load of girder can carry out consumption absorption by the main abutment of thin-walled, thus
The stress for improving the main abutment of thin-walled prevents abutment from failure by shear occurs；The second is the main abutment of thin-walled is allowed to be subjected only to bridge main body knot
The internal force and external force of structure, and it is not subject to the effect of banketing after the platform such as traditional abutment, so that its force modes is separated, after platform
The effect banketed allows earth-retaining secondary abutment to bear.Therefore, the construction measure and traditional abutment have many differences, one
It is filled with light material before earth-retaining secondary abutment platform to balance pressure of banketing after earth-retaining time abutment platform；The second is earth-retaining time abutment
It is not connect with main bridging, is not subject to the vertical load of top girder generation, be subjected only to draw beam and attachment strap and vehicles or pedestrians etc. generate
Load, and the main abutment of thin-walled is not subject to pressure of banketing after platform substantially；The third is bridge main beam, drawing beam and the main abutment of thin-walled is whole
Body consolidation, eliminates expansion joint and the telescopic device of the main Abutment of thin-walled, girder generates under temperature action and external force load
Deformation absorption can sufficiently be consumed by the main abutment of thin-walled；The fourth is the globality of enhancing bridge, improves the shock resistance of bridge
Energy；The fifth is reducing the maintenance costs of bridge, increase the service life in complete period of bridge.It is the measure simple structure, easy for construction, and hold
It easily promotes and applies in practical projects, while to attachment strap after absorbing the deformation of girder, reducing abutment failure by shear and improvement platform
Valve pit subsidence, which occurs, remarkable result, therefore, has more important economic benefit and social benefit.
Summary of the invention:
The technical problem to be solved by the utility model is to provide a kind of constructions of abutment rigid frame bridge, to overcome existing skill
The shortcoming of art.
The technical solution adopted by the utility model to solve its technical problems is that:
The construction of the utility model abutment rigid frame bridge, it is characterised in that: including girder and draw beam, the girder connects with beam is drawn
The main abutment of thin-walled, cushion cap and pile foundation are successively arranged below socket part, the cushion cap and pile foundation are equipped with close to girder side bores slope,
Be equipped with earth-retaining time abutment below the interconnecting piece for drawing beam and attachment strap, the earth-retaining time abutment close to attachment strap side be filled with platform after fill out
Soil, the beam rear of drawing is equipped with multiple sequentially connected attachment straps and the sleeper beam being located between attachment strap below expansion joint (E.J.), the thin-walled master
Light material is filled between abutment and earth-retaining time abutment.
Further, the main abutment of thin-walled that the spacing between the main abutment of above-mentioned thin-walled and earth-retaining time abutment is 1.0 ~ 2.5 is high
Degree.
Further, the lower part of above-mentioned earth-retaining time abutment is trapezoidal.
Further, above-mentioned light material is eps foam.
Further, above-mentioned earth-retaining time abutment and draw pad between beam and be equipped with glide lamella, the glide lamella is rubber or oily hair
Felt.
The construction method of the utility model abutment rigid frame bridge, it is characterised in that: the construction of the abutment rigid frame bridge includes master
Beam is successively arranged the main abutment of thin-walled, cushion cap and pile foundation, the cushion cap and stake with beam interconnecting piece lower section is drawn with beam, the girder is drawn
Basis is equipped with cone slope close to girder side, and earth-retaining time abutment, the earth-retaining time are equipped with below the interconnecting piece for drawing beam and attachment strap
Abutment close to attachment strap side be filled with platform after banket, the beam rear of drawing is equipped with multiple sequentially connected attachment straps and being located between attachment strap
Sleeper beam below expansion joint (E.J.) is filled with light material between the main abutment of the thin-walled and earth-retaining time abutment；When construction,
The pile foundation and bearing platform construction of the main abutment of thin-walled are carried out first, and the construction of the main abutment of thin-walled is carried out on cushion cap,
Complete the construction of the main abutment of thin-walled；
Then the construction banketed after platform inner cone slope and platform is carried out, bankets after platform and only fills to cushion cap, reduce because of thin-walled master
The displacement of abutment and corner are to the influence for generating sinking of coming to nothing of banketing after platform；Then earth-retaining is set at thin-walled main Abutment Back rear
Secondary abutment；
After followed by earth-retaining time abutment placement, the filling with light material between the main abutment of thin-walled and earth-retaining time abutment,
Height is consistent with the main finite element of thin-walled, with a thickness of the preset space between the main abutment of thin-walled and earth-retaining time abutment, direction across bridge
Width is consistent with the main abutment of thin-walled；After light material filling, is then set up between the main abutment of thin-walled and earth-retaining time abutment and draw beam；
Then by girder, draw beam and the main abutment of thin-walled pour or assemble it is integral, then to the platform after earth-retaining time abutment after
It bankets and constructs, and then carry out the construction of glide lamella and sleeper beam, be connected with road pavement thereafter；
The construction of attachment strap is finally carried out, while there are expansion joint (E.J.)s at the platform top of earth-retaining time abutment, and are laid with and complete in attachment strap
The filling flexible material in expansion joint (E.J.) afterwards.
Further, the main abutment of thin-walled that the spacing between the main abutment of above-mentioned thin-walled and earth-retaining time abutment is 1.0 ~ 2.5 is high
Degree.
Further, the lower part of above-mentioned earth-retaining time abutment is trapezoidal.
Further, above-mentioned light material is eps foam.
Further, above-mentioned earth-retaining time abutment and draw pad between beam and be equipped with glide lamella, the glide lamella is rubber or oily hair
Felt.
The construction of the utility model abutment rigid frame bridge compared with prior art, has following several major advantages:
1, girder, draw beam and the main abutment of thin-walled pour or assemble it is integral, can eliminate main abutment expansion joint and flexible dress
It sets.The main abutment of thin-walled is conducive to absorb the deformation of girder, so that Abutment is not susceptible to failure by shear.
2, setting earth-retaining time abutment draws beam after can preventing platform and attachment strap occurs sedimentation and destroys, and end of the bridge is eliminated from source and is jumped
The diseases such as vehicle improve road-ability, ride comfort and safety.
3, simple structure, it is easy for construction.When geological conditions is preferable, earth-retaining time abutment can refer to the shape of counterfort wall
Formula setting；When geological conditions is poor, the measures such as pile foundation or Extended chemotherapy can be added, prevent earth-retaining time abutment from drawing beam and taking
It is settled under plate self weight and other vertical uniform load qs.
4, effectively reduce bridge maintenance expense, and the life cycle management of bridge can be improved, increase its service life and
The traffic capacity.
5, filling with light material is conducive to absorb the horizontal displacement and corner that the main abutment of thin-walled is occurred between two abutments, reduces
Influence of the main abutment displacement of thin-walled to generation of banketing after platform, while balancing earth pressure at rest after earth-retaining time abutment platform.
6, it for current construction technology, realizes the deformation that above-mentioned absorption girder generates, prevents abutment from failure by shear occurs
And improve the rigid structure construction measure of abutment of banket after bridge platform sedimentation and bumping at bridge-head and uncomplicated, therefore the utility model has
Important practical significance and engineering application value.
In short, the utility model proposes abutment rigid frame bridge construction have versatility it is high, convenient for construction, while can drop
The advantages that low bridge beam maintenance costs, raising bridge life.
The utility model is described in further detail with reference to the accompanying drawings and detailed description.
Detailed description of the invention
Fig. 1 is the overall schematic of the utility model；
Fig. 2 is the partial enlarged view of Fig. 1；
Fig. 3 is the left view of Fig. 2；
Figure label explanation: 1. girders；2. drawing beam；3. the main abutment of thin-walled；4. cushion cap；5. pile foundation；6. boring slope；7. swollen
Seam；8. glide lamella；9. earth-retaining time abutment；10. light material；11. attachment strap；12. sleeper beam；13. road pavement；14. banketing after platform.
Specific embodiment
The utility model is further described below with reference to embodiment and attached drawing, but it is practical new to be not limited to this
Type.
The construction of the utility model abutment rigid frame bridge includes girder 1 and draws beam 2, the girder and draw below beam interconnecting piece according to
Secondary to be equipped with the main abutment 3 of thin-walled, cushion cap 4 and pile foundation 5, the cushion cap 4 and pile foundation 5 are equipped with close to girder side bores slope 6, described
Draw 2 rear of beam equipped with multiple sequentially connected attachment straps 11 and be located at the sleeper beam 12 of 7 lower section of expansion joint (E.J.) between attachment strap, it is described draw beam 12 with
It is equipped with earth-retaining time abutment 9 below the interconnecting piece of attachment strap 11, the earth-retaining time abutment is filled with after platform close to attachment strap side bankets 14, institute
It states and is filled with light material 10 between the main abutment of thin-walled and earth-retaining time abutment.
The utility model specifically adopts the technical scheme that: firstly, after bridge completes main girder construction, to the main abutment of thin-walled
It constructs, the main abutment of armored concrete thin-walled is set on cushion cap, after the main abutment of thin-walled at about (1.0 ~ 2.5) h
Earth-retaining time abutment is set, and cast in situs or prefabrication can be used in the main abutment of thin-walled and earth-retaining time abutment.Earth-retaining time abutment
Height it is consistent with the main abutment of thin-walled, and using section form more than variable cross-section form, with the main abutment cushion cap height of thin-walled
Using rectangular section, trapezoid cross section is used lower than the main abutment cushion cap height component of thin-walled, earth-retaining time abutment hair can be effectively prevent
Raw sedimentation.When proceeding to the fill construction stage after platform, bankets after the main abutment platform of thin-walled and be maintained at banketing before earth-retaining time abutment platform
Sustained height is only filled to the main abutment cushion cap of thin-walled.Then, filling with light material, light material are filled out between two abutments
It is charged to consistent with finite element.Then set up between two abutments and draw beam, then by girder, draw beam and the main abutment of thin-walled pours
Build or consolidate it is integral, finally, carry out attachment strap construction.The expansion joint (E.J.) position of attachment strap is laid in the end for drawing beam, while in secondary bridge
Platform is laid with glide lamella with the contact surface for drawing beam, can effectively reduce and draw the influence that beam dilatation generates secondary abutment, to prevent from taking
Plate settles, can be in the embedding sleeper beam in attachment strap end.
The main abutment of thin-walled is the abutment for being supported on girder, uses reinforced concrete structure, and top and girder draw beam
Consolidation, lower part and cushion cap consolidate, and cast-in-place or prefabrication can be used.The main abutment of thin-walled can fully absorb girder in temperature
The deformation generated under effect and external force load.
The earth-retaining time abutment refers to that, in another abutment that the main abutment platform rear direction of thin-walled is laid, earth-retaining time abutment needs tight
Lattice control its and sedimentation and deformation occur, according to the geological condition after platform, earth-retaining time abutment other than variable cross-section form is arranged in itself,
It can also be considered to increase pile foundation or Extended chemotherapy according to Site Soil condition.
Filling with light material between two abutment, light material are usually that will not generate plasticity accumulation stress and accumulation change
The material of shape, such as rubber, eps foam.Its height is typically not greater than two finite elements, width and the main abutment width one of thin-walled
It causes, with a thickness of the distance between two abutments.Light material is conducive to absorb the horizontal displacement and corner that the main abutment of thin-walled generates, and makes
The deformation of the main abutment of thin-walled does not have an impact to banketing after platform, will not make to banket after platform to generate accumulated deformation and cumulative stress, and
And light material can balance earth pressure at rest suffered by earth-retaining time abutment.
Beam is drawn in the setting between two abutments, and box-shaped or T can be used by drawing beam according to the actual design requirement of bridge
Tee section.
Described in earth-retaining time abutment and to draw and lay glide lamella between beam, the materials such as asphalt felt can be used in glide lamella, can subtract
Small secondary abutment and draw the frictional force between beam, attachment strap, reduces influence of the dilatation for drawing beam and attachment strap to secondary abutment.
The construction method of the utility model abutment rigid frame bridge, mainly for being taken after common abutment failure by shear and platform
There is a phenomenon where the bumping at bridge-head caused by valve pit subsidence for plate, and the range for being applicable in bridge type is wider, can be used for rigid frame bridge, continuous beam
In the bridge types such as bridge and jointless bridge.As shown in Fig. 1 overall schematic, specific embodiment of the present invention is as described below:
1, the basis of the main abutment of thin-walled being carried out first and cushion cap 4 being constructed, basis can use pile foundation 5 or expand base
Plinth, routinely construction method, and the construction of the main abutment 3 of thin-walled is carried out on cushion cap 4, the main abutment 3 of thin-walled can be used existing
Field pours or prefabrication, and the main abutment 3 of thin-walled can fully absorb the deformation of the generation of girder 1, completes the construction of the main abutment 3 of thin-walled,
It does not banket, i.e., is not influenced by pressure of banketing after platform after the main abutment 3 of thin-walled after the platform of the main abutment 3 of thin-walled.
2, then carry out banketing after platform inner cone slope 6 and platform 14 construction, bore the construction on slope 6 according to design requirement, platform
After banket and 14 only fill to cushion cap 4, reduce displacement and corner because of the main abutment 3 of thin-walled and come to nothing sinking to 14 generations of banketing after platform
Influence.
3, earth-retaining time abutment 9 is being set at 3 back (1.0 ~ 2.5) h of the main abutment of thin-walled, earth-retaining time abutment can be adopted
With cast in situs or prefabrication, strength grade of concrete and the ratio of reinforcement meet DESIGN OF RETAINING WALLS requirement, for anti-backstop
Native time abutment 9 settles, and the bottom of earth-retaining time abutment uses the form of trapezoid cross section.Since earth-retaining time abutment itself is more steady
It is fixed, by girder 1, draw beam 2 and attachment strap 11 is influenced smaller, i.e., to 14 effects for primarily serving earth-retaining of banketing after platform, will not squeeze
It bankets after pressure or disengaging platform, fills out soil body void sinkage after causing platform.
4, after the placement of earth-retaining time abutment, the filling with light material 10 between two abutments, light material can be used
The materials such as eps foam, it is highly consistent with main 3 height of abutment of thin-walled, with a thickness of between the main abutment 3 of thin-walled and earth-retaining time abutment 9
Preset space, direction across bridge width and the main abutment of thin-walled 3 are consistent.Light material 10 is mainly to absorb the main abutment 3 of thin-walled to generate
Displacement and corner reduce its influence to banketing after earth-retaining time abutment and part platform.It can also be provided simultaneously for earth-retaining time abutment
The effect of earth pressure at rest after balancer.
5, it after light material 10 is filled, is then set up between two abutments and draws beam 2, the section form for drawing beam is unrestricted
System can use box-shaped or T shape cross-section, and construction technology and process can be consistent with 1 girder.
6, the section form that girder 1 uses is unrestricted, can use tee girder, box-girder etc., construction technology and process
It is consistent with conventional bridge.
7, by girder 1, draw beam 2 and the main abutment 3 of thin-walled pours or assemble integral, meet concrete strength requirement and arrangement of reinforcement
Rate requirement, construction technology and construction process are consistent with traditional bridge.
8, then 14 construct to banketing after the platform after earth-retaining time abutment 9, the construction banketed after platform by design requirement into
Row.And then the construction of glide lamella 8 and sleeper beam 12 is carried out, the material of glide lamella 8 can only meet using asphalt felt etc.
Design requirement.Sleeper beam 12 can with it is traditional consistent, be connected with road pavement 13 thereafter.
9, the construction of attachment strap 11 is finally carried out, strength grade of concrete and the ratio of reinforcement of attachment strap 11 meet design requirement i.e.
Can, while there are expansion joint (E.J.)s 7 at the platform top of earth-retaining time abutment 9, and after the completion of attachment strap is laid in expansion joint (E.J.) filling natural rubber
Equal flexible materials.
The utility model is taken after solving abutment failure by shear, platform on source from design, construction, maintenance stage
The problem of plate destruction and bumping at bridge-head, that is, after using this kind of method and measure, the failure by shear and reduction of abutment will be effectively reduced
Bridge head jumps the diseases such as vehicle, and reduces the late maintaining expense of bridge, while improving the life cycle management of bridge.
In short, the utility model proposes abutment rigid frame bridge construction, mainly by the main abutment of thin-walled, draw beam, earth-retaining time bridge
The composition such as platform, light material, gliding material.The deformation of girder is fully absorbed using the main abutment of thin-walled, is realized and is reduced abutment
Failure by shear；The horizontal displacement of the light material absorption main abutment of thin-walled and corner are to the influence and earth-retaining banketed after platform time bridge
Platform and the main abutment of thin-walled solve the purpose of attachment strap sedimentation and Bridgehead-Jumping Disease to the mode for drawing beam formation supporting role.Have
Construction is simple, short construction period, operability is high, and can be widely used in bridge field now, solves the practical disease of bridge
The advantages that.
Above-listed preferred embodiment has been further described the purpose of this utility model, technical solution and advantage,
It should be understood that the above is only the preferred embodiment of the utility model only, it is not intended to limit the utility model, it is all
Within the spirit and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in practical
Within novel protection scope.
The utility model is the construction of abutment rigid frame bridge, and girder and floorings are supported on main abutment, and main abutment is adopted
With thin-walled lightweight construction.Be the main finite element of thin-walled away from the main Abutment Back of thin-walled (1.0 ~ 2.5) h(h) at setting earth-retaining time bridge
Platform, earth-retaining time abutment uses variable cross-section form, and height is consistent with the main abutment of thin-walled, with the main abutment cushion cap height phase of thin-walled
Cross sectional shape changes at same position.The setting cone slope on front side of the main abutment platform of thin-walled, and banket and only filled to holding on rear side of platform
At platform, while banketing before earth-retaining time abutment platform is also only filled with to variable cross-section position (with main abutment with high), but earth-retaining time
It bankets and is filled to platform top after abutment platform.Gap between the main abutment of thin-walled and earth-retaining time abutment is filled out using light material
It filling, horizontal displacement and corner caused by the main abutment of thin-walled can be absorbed in light material, and have an impact it not to banketing after platform,
And light material can balance the earth pressure at rest for generation of banketing after time abutment platform, prevent earth-retaining time abutment from banketing after platform pressure
Run-off the straight under the action of power.Draw beam in the main abutment of thin-walled and the setting of earth-retaining time abutment top, girder draws beam and the main abutment of thin-walled
Between use one-piece casting, so that the expansion joint for eliminating the main Abutment of thin-walled and telescopic device are to form entirety.Draw beam in earth-retaining
Glide lamella is set on secondary abutment, attachment strap is set after earth-retaining time abutment and buries sleeper beam in attachment strap end, earth-retaining time abutment platform top with
Glide lamella is added between attachment strap, reduces the influence that attachment strap dilatation generates earth-retaining time abutment.Most of bridges are using one
The diseases such as the failure by shear that Abutment easily occurs after determining the time limit and the bumping at bridge-head due to caused by attachment strap sedimentation after platform
Evil, the main reason is that: 1, for jointless bridge, since girder piles three pours as entirety, in temperature action
And the girder dilatation under external force can cause abutment to move back and forth, abutment is easy to happen failure by shear, and due to bridge
It bankets after the continuous squeeze station of platform, fills out soil body void sinking after be easy to causeing platform and cause attachment strap that sedimentation or cracking destruction occurs.2,
For seamed bridge, abutment is influenced by the Under Eccentric Loading of girder, automobile braking force and impact force and temperature action
Lower easily generation shift reciprocately and corner, the expansion joint of Abutment and telescopic device are easy to happen destruction, and the body that bankets after platform is certainly
Sedimentation and deformation can be generated under the action of weight or vertical load, causes the diseases such as bumping at bridge-head.Foundation bridge damage of bridge abutment form,
For attachment strap because of diseases such as valve pit subsidences, the utility model spy proposes the construction of abutment rigid frame bridge, master after telescopic device damage and platform
Want advantage to be: 1, the main abutment of thin-walled can fully absorb the deformation of girder using thin-walled lightweight construction, reduce to abutment by
Power influences；2, attachment strap after bridge platform can be effectively prevent to settle, ensures driving ride comfort and comfort；3, bridge is reduced
Maintenance costs improves the service life in complete period of bridge, enhances the traffic capacity of bridge；4, the stress of abutment is separated, is made thin
The main abutment of wall and earth-retaining time abutment stress are apparent, and size is smaller than common abutment；5, the globality of bridge is enhanced simultaneously
Improve the anti-seismic performance of bridge.
Claims (5)
1. a kind of construction of abutment rigid frame bridge, it is characterised in that: including girder and draw beam, the girder and draw below beam interconnecting piece
It is successively arranged the main abutment of thin-walled, cushion cap and pile foundation, the cushion cap and pile foundation are equipped with close to girder side bores slope, described to draw beam
Be equipped with earth-retaining time abutment below the interconnecting piece of attachment strap, the earth-retaining time abutment close to attachment strap side be filled with platform after banket, it is described
Draw the sleeper beam that beam rear is equipped with multiple sequentially connected attachment straps and is located between attachment strap below expansion joint (E.J.), the main abutment of thin-walled and gear
Light material is filled between native abutment.
2. the construction of abutment rigid frame bridge according to claim 1, it is characterised in that: the main abutment of thin-walled and earth-retaining time bridge
The main finite element of thin-walled that spacing between platform is 1.0 ~ 2.5.
3. the construction of abutment rigid frame bridge according to claim 1, it is characterised in that: the lower part of the earth-retaining time abutment is in ladder
Shape.
4. the construction of abutment rigid frame bridge according to claim 1, it is characterised in that: the light material is eps foam.
5. the construction of abutment rigid frame bridge according to claim 1, it is characterised in that: the earth-retaining time abutment and draw between beam
Pad is equipped with glide lamella, and the glide lamella is rubber or asphalt felt.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820924103.0U CN208472551U (en) | 2018-06-14 | 2018-06-14 | The construction of abutment rigid frame bridge |
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| CN201820924103.0U CN208472551U (en) | 2018-06-14 | 2018-06-14 | The construction of abutment rigid frame bridge |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108547218A (en) * | 2018-06-14 | 2018-09-18 | 福州大学 | The construction and its construction method of abutment rigid frame bridge |
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2018
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108547218A (en) * | 2018-06-14 | 2018-09-18 | 福州大学 | The construction and its construction method of abutment rigid frame bridge |
| WO2019237678A1 (en) * | 2018-06-14 | 2019-12-19 | 福州大学 | Structure of rigid frame bridge having abutments and construction method therefor |
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