CN205907584U - Can improve wave form steel abdomen plate girder bridge connection structure of bulk strength - Google Patents
Can improve wave form steel abdomen plate girder bridge connection structure of bulk strength Download PDFInfo
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- CN205907584U CN205907584U CN201620605606.2U CN201620605606U CN205907584U CN 205907584 U CN205907584 U CN 205907584U CN 201620605606 U CN201620605606 U CN 201620605606U CN 205907584 U CN205907584 U CN 205907584U
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Abstract
The utility model relates to a bridge engineering technical field discloses a can improve wave form steel abdomen plate girder bridge connection structure of bulk strength, including first wave form steel web case roof beam, second wave form steel web case roof beam, prestressed steel beam, perforated plate connects key and supporting steel plate, first wave form steel web case roof beam is including the concrete floor, second wave form steel web case roof beam is including steel bottom plate, it is first, second wave form steel web case roof beam docks through respective one end, butt joint department forms the changeover portion, steel bottom plate inserts to the changeover portion in, what a plurality of perforated plate connection key paralleld locates in the changeover portion, and vertical setting of edge case roof beam, the supporting steel plate is located the tail end of changeover portion and is strained by fore -and -aft prestressed steel beam. The utility model discloses the simple structure of butt joint department, it is clear and definite, reliable to pass power, has good crack resistance, fatigue resistance and durability, the concrete floor overlaps with steel bottom plate each other, and the rigidity transition is even, and the stress dispersion is good.
Description
Technical field
This utility model is related to technical field of bridge engineering, especially relates to a kind of beam bridge.
Background technology
Steel-concrete combined structure can play steel and concrete bi-material each reasonability of advantage, whole because of it
The economy of body stress and the convenience of construction, are increasingly becoming the important development direction of bridge structure.Wavelike steel webplate beam is
Concrete web the Novel steel concrete combined structure using external prestressing are replaced with corrugated sheet steel, it has shearing and bends
Qu Qiangdu is high, the feature of non resistance longitudinal direction axial force, can reduce box beam with Wavelike steel webplate as the web of concrete box girder
Deadweight, can reduce the casting process of substantial amounts of support, template and concrete simultaneously, contribute to the reduction of erection time, reduces cost, because
And be widely used, built at present and the Wavelike steel webplate continuous bridge built largest span up to 160m.
But Wavelike steel webplate beam there is also defect: i.e. when beam bridge across footpath is more than 200m, due to middle Dun Chu deck-molding relatively
Height, there is flexing stable problem in Wavelike steel webplate, increase with across footpath simultaneously, and pier top hogging moment and shearing are larger, agent on crack resistance of concrete
Split difficult with Wavelike steel webplate shear Design, construction investment increase is also larger, thus weakening the competitiveness of this structure.Connecting structure
Be in combinative structure of paramount importance position it is desirable to being capable of accurately Transfer of Shear and moment of flexure；It is also weak part simultaneously, once
Repair difficulty after occurring to damage or destroy big, have a strong impact on structure safety and the service life of bed rearrangement bridge.
Utility model content
In order to overcome the deficiencies in the prior art, this utility model provides a kind of Wavelike steel webplate beam improving bulk strength
Bridge attachment structure.
This utility model solves its technical problem and be the technical scheme is that
A kind of Wavelike steel webplate beam bridge attachment structure improving bulk strength, including first waveform steel web box girder,
Two box girder with corrugated steel webs, prestressed strand, perforated panel connecting key and supporting steel plate, first waveform steel web box girder includes mixed
Solidifying soil base plate, the second box girder with corrugated steel webs includes steel sole plate, and first, second box girder with corrugated steel webs passes through respective one end
Docking, joint forms changeover portion, and steel sole plate is inserted in changeover portion, some perforated panel connecting keys arranged side by side located at changeover portion
Interior and longitudinally disposed along box beam, supporting steel plate located at changeover portion tail end and by longitudinal prestressed strand tension.
As the further improved procedure of such scheme, first waveform steel web box girder also includes concrete roof, and
Wavelike steel webplate between concrete roof and concrete floor.
As the further improved procedure of such scheme, the second box girder with corrugated steel webs also includes concrete roof, and
Wavelike steel webplate between concrete roof and steel sole plate.
As the further improved procedure of such scheme, the length of changeover portion is not less than 2m.
As the further improved procedure of such scheme, steel sole plate is provided with steel reinforcing segments.
As the further improved procedure of such scheme, along being longitudinally provided with some holes on perforated panel connecting key, in the hole is worn
It is provided with horizontal reinforcing bar.
The beneficial effects of the utility model are:
1st, the simple structure of joint, power transmission is clear and definite, reliable, has good splitting resistance, fatigue resistance and durability；
2nd, concrete floor and steel sole plate are overlapped, and uniformly, stress spread is good for stiffness transition；
3rd, attachment structure is the open type construction of upper opening, is easy to construct, fill concrete quality is readily obtained guarantee.
Brief description
With reference to the accompanying drawings and examples this utility model is further illustrated.
Fig. 1 is the longitudinal profile schematic diagram (attachment structure between hiding box beam) of one embodiment of this utility model；
Fig. 2 is the horizontal section schematic diagram of this utility model another embodiment of the second box girder with corrugated steel webs；
Fig. 3 is the longitudinal profile schematic diagram (not hiding the attachment structure between box beam) of one embodiment of this utility model；
Fig. 4 is that the horizontal section schematic diagram that this utility model second box girder with corrugated steel webs is in during connection status (is hidden
Changeover portion and reinforcing bar).
Specific embodiment
Below with reference to embodiment and accompanying drawing, the technique effect of design of the present utility model, concrete structure and generation is carried out
Clear, complete description, to be completely understood by the purpose of this utility model, scheme and effect.It should be noted that not conflicting
In the case of, the embodiment in the application and the feature in embodiment can be mutually combined.
It should be noted that if no special instructions, when a certain feature is referred to as " fixation ", " connection " in another feature,
It can directly be fixed, be connected in another feature it is also possible to indirectly fixing, being connected in another feature.Additionally, this
The description such as upper and lower, left and right used in utility model is only the phase with respect to each ingredient of this utility model in accompanying drawing
Mutually for position relationship.
Additionally, unless otherwise defined, the technology of all of technology used herein and scientific terminology and the art
The implication that personnel are generally understood that is identical.Term used in the description is intended merely to describe specific embodiment herein, and not
It is to limit the present invention.Term as used herein " and/or " include the arbitrary of one or more related Listed Items
Combination.
With reference to Fig. 1, show the longitudinal profile schematic diagram of one embodiment of this utility model, in figure conceals between box beam
Attachment structure.This utility model includes first waveform steel web box girder 100 and the second box girder with corrugated steel webs 200, wherein, the
One box girder with corrugated steel webs 100 includes concrete roof 110, concrete floor 120 and located at concrete roof 110 and coagulation
Wavelike steel webplate 130 between native base plate 120；Similar, the second box girder with corrugated steel webs 200 also includes concrete roof
210 with Wavelike steel webplate 230, its difference with first waveform steel web box girder 100 is that base plate is steel sole plate 220, traditional
Preferably but tensile property is poor for concrete floor compressive property, and the mid span area of continuous beam needs to bear larger pulling force, then
Plus concrete floor from great, therefore it is easy to cracking phenomenon, and steel sole plate is good from heavy and light, tensile property, permissible
Effectively solve the above problems.
With reference to Fig. 2, show that the horizontal section of this utility model another embodiment of the second box girder with corrugated steel webs is illustrated
Figure, is additionally provided with steel reinforcing segments 240 as we know from the figure to increase the intensity of steel sole plate 220 on steel sole plate 220.
With reference to Fig. 3, show the longitudinal profile schematic diagram of one embodiment of this utility model, in figure shows between box beam
Attachment structure, it specifically includes prestressed strand 300, perforated panel connecting key 400 and supporting steel plate 500, wherein first, second
Box girder with corrugated steel webs is docked by respective one end, and joint forms changeover portion 600, the one of changeover portion 600 in the present embodiment
Hold the concrete floor 120 with first waveform steel web box girder 100 to pour to be integrated, the other end stretches into the second Wavelike steel webplate case
In beam 200, steel sole plate 220 be inserted in changeover portion 600 with first, second box girder with corrugated steel webs joint formed steel-
Concrete combined structure.
Preferably, the length of changeover portion 600 can be determined according to connecting key shear calculation, typically no less than 2m.
It is additionally provided with some perforated panel connecting keys 400, perforated panel connecting key 400 opposite concrete base plate in changeover portion 600
120 or steel sole plate 220 vertical and longitudinally disposed along box beam, be parallel to each other between perforated panel connecting key 400.
Preferably, along being longitudinally provided with some holes 401 on perforated panel connecting key 400, in hole 401, it is equipped with horizontal reinforcing bar
700 to strengthen overall intensity further.
The tail end of changeover portion 600 is additionally provided with supporting steel plate 500, and this supporting steel plate 500 is particularly located at the outer of changeover portion 600
Side, and strained by the prestressed strand 300 longitudinally through concrete floor 120 and changeover portion 600.
Prestressing force is arranged by steel bundle 300, and by way of perforated panel connecting key 400 is with horizontal shear and supporting steel
Plate 500 transmits pressure in the way of pressure-bearing jointly can make the joint of first, second box girder with corrugated steel webs be in pressurized shape
State.
With reference to Fig. 4, show that the horizontal section that this utility model second box girder with corrugated steel webs is in during connection status shows
Be intended to (hiding changeover portion), perforated panel connecting keys 400 some as we know from the figure arranged side by side on steel sole plate 220, supporting steel
Plate 500 is vertical with perforated panel connecting key 400, and some prestressed strands 300 are arranged between perforated panel connecting key 400 to strain
Second support plate 500.
It is more than that preferable enforcement of the present utility model is illustrated, but the invention is not limited to described reality
Apply example, those of ordinary skill in the art also can make a variety of equivalent variations without prejudice on the premise of this utility model spirit
Or replace, these equivalent deformation or replacement are all contained in the application claim limited range.
Claims (6)
1. a kind of Wavelike steel webplate beam bridge attachment structure improving bulk strength it is characterised in that: include first waveform steel abdomen
Slab box beam, the second box girder with corrugated steel webs, prestressed strand, perforated panel connecting key and supporting steel plate, described first waveform steel abdomen
Slab box beam includes concrete floor, and described second box girder with corrugated steel webs includes steel sole plate, described first, second waveform steel
Web box girder is docked by respective one end, and joint forms changeover portion, and described steel sole plate is inserted in described changeover portion, some
Arranged side by side in the described changeover portion and longitudinally disposed along box beam of described perforated panel connecting key, described supporting steel plate is located at institute
State the tail end of changeover portion and by longitudinal described prestressed strand tension.
2. the Wavelike steel webplate beam bridge attachment structure improving bulk strength according to claim 1 it is characterised in that: institute
State first waveform steel web box girder and also include concrete roof, and located between described concrete roof and concrete floor
Wavelike steel webplate.
3. the Wavelike steel webplate beam bridge attachment structure improving bulk strength according to claim 1 it is characterised in that: institute
State the second box girder with corrugated steel webs and also include concrete roof, and located at the waveform between described concrete roof and steel sole plate
Steel web.
4. the Wavelike steel webplate beam bridge attachment structure improving bulk strength according to any one of claim 1 to 3, its
It is characterised by: the length of described changeover portion is not less than 2m.
5. the Wavelike steel webplate beam bridge attachment structure improving bulk strength according to any one of claim 1 to 3, its
It is characterised by: on described steel sole plate, be provided with steel reinforcing segments.
6. the Wavelike steel webplate beam bridge attachment structure improving bulk strength according to any one of claim 1 to 3, its
It is characterised by: along being longitudinally provided with some holes on described perforated panel connecting key, in the hole is equipped with horizontal reinforcing bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620605606.2U CN205907584U (en) | 2016-06-20 | 2016-06-20 | Can improve wave form steel abdomen plate girder bridge connection structure of bulk strength |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620605606.2U CN205907584U (en) | 2016-06-20 | 2016-06-20 | Can improve wave form steel abdomen plate girder bridge connection structure of bulk strength |
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| Publication Number | Publication Date |
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| CN205907584U true CN205907584U (en) | 2017-01-25 |
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| CN201620605606.2U Active CN205907584U (en) | 2016-06-20 | 2016-06-20 | Can improve wave form steel abdomen plate girder bridge connection structure of bulk strength |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113863113A (en) * | 2021-09-18 | 2021-12-31 | 西安市政设计研究院有限公司 | Perforated stiffening rib-reinforced concrete combined steel beam and construction method thereof |
-
2016
- 2016-06-20 CN CN201620605606.2U patent/CN205907584U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113863113A (en) * | 2021-09-18 | 2021-12-31 | 西安市政设计研究院有限公司 | Perforated stiffening rib-reinforced concrete combined steel beam and construction method thereof |
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| GR01 | Patent grant |