CN208266706U - It is a kind of to reinforce old assembled Hollow Slab Beam Bridge construction using new beam - Google Patents
It is a kind of to reinforce old assembled Hollow Slab Beam Bridge construction using new beam Download PDFInfo
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- CN208266706U CN208266706U CN201820695876.6U CN201820695876U CN208266706U CN 208266706 U CN208266706 U CN 208266706U CN 201820695876 U CN201820695876 U CN 201820695876U CN 208266706 U CN208266706 U CN 208266706U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/30—Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways
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Abstract
The utility model disclose it is a kind of reinforce old assembled Hollow Slab Beam Bridge using new beam and construct, including old hollow slab girder, new hollow slab girder, concrete hinge seam, hinge seam distributing bar, concrete slab.The old hollow slab girder is the complete old assembled cored slab single plate beam with ribbet (hinge seam)；The new hollow slab girder is the hollow single plate beam of complete prefabricated PC with ribbet (hinge is stitched) identical with deck-molding with old hollow slab girder across footpath；The concrete hinge seam is between new and old hollow slab girder；The hinge seam distributing bar is regular reinforcement, is arranged in the hinge seam between the new and old hollow slab girder of two panels；The concrete slab is located at hollow slab girder top surface, using concrete identical as hinge seam concrete, and poured simultaneously with hinge seam, seam and floorings are cut with scissors by concrete and connect new, old hollow slab girder integral, Hollow Slab Beam Bridge entirety superstructure is collectively formed.
Description
Technical field
The utility model belongs to reinforcement technique field more particularly to a kind of new beam of utilization of assembled freely-supported Hollow Slab Beam Bridge
Reinforce old assembled Hollow Slab Beam Bridge construction.
Background technique
As national economy comparatively fast develops, the fast development of highway in China transport development cause is promoted, bridge is also promoted
The construction and development of beam engineering.In built bridge, Short/Medium Span Bridge occupies very big specific gravity, these bridges all use substantially
Armored concrete, prestress concrete girder slab formula structure.Since early stage is limited by material, design, construction level, in addition material from
Overload and oversize caused by right aging, loads change and the factors such as bridge maintaining maintenance missing are built up, leads to many bridge structures
It is not able to satisfy the requirement of normal use or bearing capacity.Therefore, in Existing Highway Bridges Reconstruction Project, a large amount of old bridge can be removed
Beam slab, wherein the old bridge plate majority active time removed did not reached its projected life far at 20 years or so.If will remove
Beam slab it is discarded, not only will increase the project cost of newly building bridge, but also environmental disruption can be caused due to the exploitation of construction material；
Discarded beam slab also will cause secondary environmental pollution as treating construction waste simultaneously.It is special for old bridge plate structure and stress
Point is improved its service performance for having bridge, can further be extended old beam slab and use the longevity by the reinforcement measure of simple economy
Life, is the inevitable requirement of science of bridge building field Green Sustainable.
Hollow Slab Beam Bridge has many advantages, such as that prefabricated simple, easy for installation, low cost, building height are small, in highway Middle Or Small Span
It is widely applied in diameter science of bridge building, is one of the bridge type that quantity is most in China's servicing bridges.Currently used old hollow slab girder
Bridge reinforcement means is many, reinforces as bridge floor thickens method for strengthening, strengthening with external bonding method, external prestressed strengthening method, change structural system
Method etc., but there is limitation, such as: Enlargement of Section will increase dead load, reduce head room；Affixing steel plate and fiber
There is reinforcement material and substrate bond effect and durability in composite material；External prestressing and change system method for strengthening
There are the problems such as reinforcement process complexity.
So in this background, developing a kind of new beam of utilization and reinforcing old assembled Hollow Slab Beam Bridge construction and construction party
Method has great practical value.
Utility model content
The purpose of this utility model is to solve the deficiency in above-mentioned existing in-service Hollow Slab Beam Bridge reinforcement technique, existing
Technology under the premise of, provide and a kind of reinforce old assembled Hollow Slab Beam Bridge using new beam and construct.
To achieve the goals above, the utility model uses following technical measures:
It is a kind of to reinforce old assembled Hollow Slab Beam Bridge construction, including old hollow slab girder, new hollow slab girder, coagulation using new beam
Soil hinge seam, distributing bar and concrete slab；The old hollow slab girder is the complete old assembly with ribbet (hinge seam)
Formula cored slab single plate beam；The new hollow slab girder is identical with deck-molding with ribbet with old hollow slab girder across footpath (hinge is stitched)
The hollow single plate beam of complete prefabricated PC；The old hollow slab girder and the alternate setting of new hollow slab girder；The hinge seam
In the hinge seam that concreting is formed between adjacent new, old hollow slab girder；The distributing bar is also disposed at hinge seam
It is interior；The concrete slab is located at hollow slab girder top surface.
Further, the concrete slab uses the concrete of label identical as hinge seam concrete, and stitches with hinge
It pours simultaneously.
Further, the old hollow slab girder is no significant defect, but bearing capacity is unsatisfactory for existing load requirement
Old assembled hollow slab girder.
Further, the new hollow slab girder across footpath and deck-molding are identical as old hollow slab girder, but deck-siding and section are arranged
Form can be different from old hollow slab girder.
Further, new, the old hollow slab girder both ends are longitudinally located at abutment or pier top, laterally new, old hollow slab girder
It is alternately arranged.
Further, the hinge seam concrete uses the concrete not less than girder label.
Further, the distributing bar is divided into lateral cross reinforcing bar and longitudinal reinforcement, and it acts as reinforcing, hinge seam is anti-
Drawing, improves overall stiffness at shear resistance；Lateral cross reinforcing bar crossover location is located at hinge seam section central upper, lateral cross cloth
Concrete hinge can be enhanced by, which setting, stitches lateral tensile capacity；Longitudinal reinforcement is arranged in hinge seam lower part.
Further, the longitudinal reinforcement is multiple including can be set, and multiple longitudinal reinforcements are parallel to each other.
Further, the lateral cross reinforcing bar is also provided with multiple, is arranged successively along the longitudinal direction of relatively seam.
Further, the inside of lateral cross reinforcing bar is arranged in the longitudinal reinforcement, connect longitudinally disposed one arrange to
Cross wise reinforcement.Further, the concrete slab pours simultaneously with hinge seam, cuts with scissors seam by concrete and floorings will be new
Old hollow slab girder connection is integral, and Hollow Slab Beam Bridge entirety superstructure is collectively formed.
Old Hollow Slab Beam Bridge construction method is reinforced to the hinge seam longitudinal prestressing, including the following steps:
Step 1: the side Jiu Qiao hollow slab girder and new hollow slab girder alternating is placed side by side on abutment or pier top bent cap；It is adjacent
New, old hollow slab girder between formed hinge seam；
Step 2: binding lateral cross reinforcing bar and longitudinal reinforcement in the hinge is stitched.
Step 3: bottom seam being filled out using mortar first, then pours concrete hinge seam and coagulation between new, old hollow slab girder
Native floorings complete entire Hollow Slab Beam Bridge strengthening construction.
The utility model has the advantage that compared with the existing technology
(1) deficiency for overcoming the old Hollow Slab Beam Bridge reinforcing construction of tradition is reinforced old hollow using new and old beam combination method
Plate girder bridge, without changing dead load and head room, while without pasting other reinforcement materials.
(2) rationally, new hollow slab girder can increase overall structure bearing capacity to the utility model construction, while cut with scissors seam concrete
Old hollow slab girder and new hollow slab girder are combined into one with floorings, increase its overall stiffness.
(3) the utility model takes full advantage of the function that reuses of the old hollow slab girder in part, and new, old hollow slab girder is combined and applied
Work method is simple, and material utilization amount is few, improves the bearing capacity of whole bridge, has very high society and economic benefit.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is this
Some embodiments of utility model, for those of ordinary skill in the art, without creative efforts, also
Other drawings may be obtained according to these drawings without any creative labor.
Fig. 1 is old Hollow Slab Beam Bridge reinforcing construction cross-sectional view；
Fig. 2 is hinge seam distributing bar layout drawing.
In figure: the old hollow slab girder of 1-, the new hollow slab girder of 2-, 3- hinge seam concrete, 4- hinge seam distributing bar, 5- concrete bridge
Panel, 6- lateral cross reinforcing bar, 7- longitudinal reinforcement, the bottom 8- seam, 9- guardrail.
Specific embodiment
It is noted that following detailed description is all illustrative, it is intended to provide further instruction to the application.Unless another
It indicates, all technical and scientific terms used herein has usual with the application person of an ordinary skill in the technical field
The identical meanings of understanding.
It should be noted that term used herein above is merely to describe specific embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singular
Also it is intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packet
Include " when, indicate existing characteristics, step, operation, device, component and/or their combination.
As background technique is introduced, there are the following problems in existing old Hollow Slab Beam Bridge reinforcement technique: (1) increasing and cut
Face method will increase dead load, reduce head room；(2) there is reinforcement material and substrate in affixing steel plate and fibrous composite
The problem of bond effect and durability；(3) external prestressing and change system method for strengthening and ask there are reinforcement process complexity etc. is many
Topic.In order to solve technical problem as above, old assembled Hollow Slab Beam Bridge construction is reinforced using new beam present applicant proposes a kind of
And construction method.
Below in conjunction with attached drawing 1,2, the structure of the utility model is further described.
The utility model provides one kind relative to old Hollow Slab Beam Bridge reinforcement technique, has and can satisfy old hollow slab girder
Recycling function, improve old Hollow Slab Beam Bridge bearing capacity, it is a kind of to reinforce old assembled Hollow Slab Beam Bridge structure using new beam
It makes and construction method.
As shown in connection with fig. 1, a kind of to reinforce old assembled Hollow Slab Beam Bridge using new beam and construct including old hollow slab girder 1, new
Hollow slab girder 2, concrete hinge seam 3, hinge seam distributing bar 4, concrete slab 5.The old hollow slab girder 1 is with tongue and groove
The complete old assembled cored slab single plate beam of seam (hinge seam)；The new hollow slab girder 2 be and old 1 across footpath of hollow slab girder and deck-molding
The identical hollow single plate beam of complete prefabricated PC with ribbet (hinge seam)；The hinge seam concrete 3 is located at adjacent
New, old hollow slab girder between formed hinge seam in；The hinge seam distributing bar 4 is regular reinforcement, and it is new to be also disposed at two panels
In hinge seam 3 between old hollow slab girder；The concrete slab 5 is located at hollow slab girder top surface, stitches concrete using with hinge
Identical concrete, and poured simultaneously with hinge seam 3.
As shown in connection with fig. 1, old hollow slab girder 1 is no significant defect, but bearing capacity is unsatisfactory for the old of existing load requirement
Assembled hollow slab girder.
As shown in connection with fig. 1, new 2 across footpath of hollow slab girder is identical as old hollow slab girder 1 as deck-molding, but shape is arranged in deck-siding and section
Formula can be different from old hollow slab girder, specific as shown in Figure 1, being provided that the hole for being similar to rectangle in old hollow slab girder 1；
The cross section of new hollow slab girder is provided that two hollow circular holes；The only one embodiment provided in certain attached drawing, it is new empty
The arrangement form of core beam cross section can also be other shape, this is configured according to actual requirement of engineering.
As shown in connection with fig. 1, new, old hollow slab girder both ends are longitudinally located at abutment or pier top, laterally new, old hollow slab girder alternating
Arrangement；
As shown in connection with fig. 1, hinge seam concrete 3 is using the concrete for being not less than girder label.
As shown in Figure 1, Figure 2, hinge seam distributing bar 4 divides for lateral cross reinforcing bar 6 and longitudinal reinforcement 7, it acts as add
3 tensions of strong hinge seam, improve overall stiffness at shear resistance；6 crossover location of lateral cross reinforcing bar is located at hinge seam section central upper,
Lateral cross arrangement can enhance concrete hinge and stitch lateral tensile capacity；Longitudinal reinforcement is arranged in hinge seam lower part.
Further, the longitudinal reinforcement is multiple including can be set, and multiple longitudinal reinforcements are parallel to each other.
Further, the lateral cross reinforcing bar is also provided with multiple, is arranged successively along the longitudinal direction of hinge seam.
Further, the inside of lateral cross reinforcing bar is arranged in the longitudinal reinforcement, connect longitudinally disposed one arrange to
Cross wise reinforcement.
As shown in Figure 1, Figure 2, concrete slab 5 pours simultaneously with hinge seam 3, pass through concrete hinge seam 3 and floorings 5
By new, the connection of old hollow slab girder is integral, Hollow Slab Beam Bridge entirety superstructure is collectively formed.
Old Hollow Slab Beam Bridge construction method is reinforced to the hinge seam longitudinal prestressing, including the following steps:
Step 1: the side Jiu Qiao hollow slab girder 1 and new hollow slab girder 2 being replaced placed side by side on abutment or pier top bent cap.
Step 2: binding lateral cross reinforcing bar 6 and longitudinal reinforcement 7 in hinge seam 3.
Step 3: first using M15 mortar fill out bottom seam 8, then pour between new, old hollow slab girder concrete hinge seam 3 and
Concrete slab 5 completes entire Hollow Slab Beam Bridge strengthening construction.
It is above-mentioned although specific embodiments of the present invention are described with reference to the accompanying drawings, but it is not practical new to this
The limitation of type protection scope, those skilled in the art should understand that, based on the technical solution of the present invention, ability
Field technique personnel do not need to make the creative labor the various modifications or changes that can be made still in the protection model of the utility model
Within enclosing.
Claims (9)
1. old assembled Hollow Slab Beam Bridge is reinforced using new beam construct, which is characterized in that a kind of including old hollow slab girder, new hollow
Plate-girder, concrete hinge seam, distributing bar and concrete slab；The old hollow slab girder is the complete old dress with ribbet
With formula cored slab single plate beam；The new hollow slab girder is identical with deck-molding complete with ribbet with old hollow slab girder across footpath
Whole assembled pre-stress hollow single plate beam；The old hollow slab girder and the alternate setting of new hollow slab girder；The hinge stitches coagulation
Soil pours in the hinge seam formed between adjacent new, old hollow slab girder；The distributing bar is also disposed in hinge seam；Institute
The concrete slab stated is located at hollow slab girder top surface.
2. reinforcing old assembled Hollow Slab Beam Bridge using new beam as described in claim 1 to construct, which is characterized in that described is mixed
Solidifying soil floorings use the concrete of label identical as hinge seam concrete, and pour simultaneously with hinge seam.
3. reinforcing old assembled Hollow Slab Beam Bridge using new beam as described in claim 1 to construct, which is characterized in that described is old
Hollow slab girder is no significant defect, but bearing capacity is unsatisfactory for the old assembled hollow slab girder of existing load requirement.
4. reinforcing old assembled Hollow Slab Beam Bridge using new beam as described in claim 1 to construct, which is characterized in that described is new
The deck-siding of hollow slab girder is different with old hollow slab girder from section arrangement form.
5. reinforcing old assembled Hollow Slab Beam Bridge using new beam as described in claim 1 to construct, which is characterized in that described
Newly, old hollow slab girder both ends are longitudinally located at abutment or pier top, and laterally new, old hollow slab girder is alternately arranged.
6. reinforcing old assembled Hollow Slab Beam Bridge using new beam as described in claim 1 to construct, which is characterized in that the hinge
It stitches concrete and uses the concrete for being not less than girder label.
7. reinforcing old assembled Hollow Slab Beam Bridge using new beam as described in claim 1 to construct, which is characterized in that the structure
It makes reinforcing bar and is divided into lateral cross reinforcing bar and longitudinal reinforcement, lateral cross reinforcing bar crossover location is located at hinge seam section central upper, indulges
Lower part is stitched in hinge to steel bar arrangement.
8. reinforcing old assembled Hollow Slab Beam Bridge using new beam as claimed in claim 7 to construct, which is characterized in that described is vertical
Multiple including can be set to reinforcing bar, multiple longitudinal reinforcements are parallel to each other；The lateral cross reinforcing bar be also provided with it is multiple, along
The longitudinal direction of hinge seam is arranged successively.
9. reinforcing old assembled Hollow Slab Beam Bridge using new beam as claimed in claim 7 to construct, which is characterized in that described is vertical
To steel-bar arrangement in the inside of lateral cross reinforcing bar, connects longitudinally disposed one and arrange to cross wise reinforcement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820695876.6U CN208266706U (en) | 2018-05-10 | 2018-05-10 | It is a kind of to reinforce old assembled Hollow Slab Beam Bridge construction using new beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820695876.6U CN208266706U (en) | 2018-05-10 | 2018-05-10 | It is a kind of to reinforce old assembled Hollow Slab Beam Bridge construction using new beam |
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| CN208266706U true CN208266706U (en) | 2018-12-21 |
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| CN201820695876.6U Active CN208266706U (en) | 2018-05-10 | 2018-05-10 | It is a kind of to reinforce old assembled Hollow Slab Beam Bridge construction using new beam |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108316164A (en) * | 2018-05-10 | 2018-07-24 | 山东交通学院 | It is a kind of to reinforce old assembled Hollow Slab Beam Bridge construction and construction method using new beam |
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2018
- 2018-05-10 CN CN201820695876.6U patent/CN208266706U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108316164A (en) * | 2018-05-10 | 2018-07-24 | 山东交通学院 | It is a kind of to reinforce old assembled Hollow Slab Beam Bridge construction and construction method using new beam |
| CN108316164B (en) * | 2018-05-10 | 2023-08-29 | 山东交通学院 | Structure for reinforcing old assembled hollow slab girder bridge by using new girder and construction method |
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