CN208815390U - A kind of broad flange beam - Google Patents
A kind of broad flange beam Download PDFInfo
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- CN208815390U CN208815390U CN201821227083.8U CN201821227083U CN208815390U CN 208815390 U CN208815390 U CN 208815390U CN 201821227083 U CN201821227083 U CN 201821227083U CN 208815390 U CN208815390 U CN 208815390U
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Abstract
The utility model provides a kind of broad flange beam, including top plate, bottom plate and the web being connected between top plate and bottom plate, web includes at least one straight web and two skew web plates, two skew web plates extend to top plate by two sloped-ends of bottom plate respectively, straight web is located between two skew web plates and is extending vertically into top plate by bottom plate, extend cantilever slab outward in the two sides of top plate, cantilever slab is extended with lengthened plate far from the side of top plate, the lower section of cantilever slab and lengthened plate is provided with multiple first ribs along floorings longitudinal gap, first ribs is entity structure and extends laterally to skew web plate and in conjunction with skew web plate, the second ribs is provided in the corresponding chamber of skew web plate, second ribs connects top plate and skew web plate, second ribs is arranged in a one-to-one correspondence with the first ribs and is located at the two of corresponding skew web plate Side.Material utilization amount can be greatly decreased in the utility model, reduce dead load, improve economy, while increasing the case interior space.
Description
Technical field
The utility model relates to box girder bridge field more particularly to a kind of broad flange beams.
Background technique
With the fast development of Urban Bridge, bridge width is increasing, and from landscape design, broad flange beam is obtained
It is widely applied.
After box girder cantilever plate is excessive, only with top plate transverse prestress, stress demand is had been unable to meet, is generally required outstanding
Ribs is densely set under arm plate, changes the power transmission mode of box beam, so that cantilever slab stress is met the requirements.Due under cantilever slab
The ribs of side has by-local forces to the web on both sides, the unstable of web structure is caused, usually in the chamber on both sides
Diaphragm plate corresponding with ribs is arranged in portion, to balance the by-local forces that ribs generates web, although in this way to structure
Local pressure has larger benefit, but ribs setting is intensive, and corresponding diaphragm plate quantity is very big, and each diaphragm plate is required to
Corresponding people hole is set, and design, construction are all pretty troublesome.Therefore it needs to optimize diaphragm plate, reduces material utilization amount, side
Just it constructs, improves economy.
Utility model content
The purpose of this utility model is to provide a kind of broad flange beams, it is intended to for solving existing low-pylon cable-stayed bridge
Straight web box girder concrete amount is big, and dead load is big, the poor problem of economy.
The utility model is realized in this way:
The utility model provides a kind of broad flange beam, including top plate and bottom plate and is connected between top plate and bottom plate
Web, the web include at least one straight web and two skew web plates, and two skew web plates are respectively by the bottom plate
Two sloped-ends extend to the top plate, and the straight web is located between two skew web plates and is extending vertically by the bottom plate
Cantilever slab is extended in the top plate, the two sides along the lateral top plate of bridge floor outward, and the cantilever slab is far from the top plate
Side is extended with lengthened plate, and the top plate, each cantilever slab and each lengthened plate collectively form floorings, the cantilever
The lower section of plate and the lengthened plate is provided with multiple first ribs along floorings longitudinal gap, and first ribs is real
Body structure and far from the side of the cantilever slab skew web plate is extended laterally to by the lengthened plate and in conjunction with skew web plate, institute
It states and is provided with the second ribs in the corresponding chamber of skew web plate, second ribs connects the top plate and the oblique abdomen
Plate, second ribs are arranged in a one-to-one correspondence with first ribs and are located at the two sides of the corresponding skew web plate.
Further, the top of first ribs is integral knot with the bottom of corresponding lengthened plate and cantilever slab
Structure, the bottom of first ribs are higher than the bottom plate, and the thickness of first ribs is from the position close to skew web plate
It is gradually reduced to the other end.
Further, the thickness and first ribs and skew web plate of second ribs and skew web plate junction connect
Connect the consistency of thickness at place.
Further, it is additionally provided in the corresponding chamber of the skew web plate and the symmetrically arranged third of the second ribs
Ribs, the third ribs connect the top plate and corresponding straight web.
Further, the shape of second ribs and the third ribs is triangular in shape.
Further, floorings total length is accounted for positioned at the sum of the cantilever slab of box beam side and the length of the lengthened plate
1/5 ~ 1/4.
Further, between two neighboring first ribs between be divided into 3 ~ 4m.
Compared with prior art, the utility model has the following beneficial effects:
This broad flange beam provided by the utility model is extended with lengthened plate, shape far from the side of top plate in cantilever slab
At broad flange beam structure, while skew web plate form is used, reduce chamber number, reduce web the piece number, in cantilever slab and added
The first ribs is arranged in the lower section of long slab, extends laterally at skew web plate and engages with skew web plate, changes the power transmission mould of box beam
Formula both increases boom width, in turn ensures stable structure, safety；It is provided in the corresponding chamber of skew web plate and the first ribs
Corresponding second ribs replaces diaphragm structure with the second ribs, material utilization amount can be greatly decreased, reduces dead load,
Economy is improved, meanwhile, the case interior space increases, and tensioning construction in chamber, construction personnel, material installation are current etc. more
Add conveniently.
Detailed description of the invention
Fig. 1 is a kind of sectional view of broad flange beam provided by the embodiment of the utility model.
Description of symbols: 1- top plate, 2- bottom plate, the straight web of 3-, 4- skew web plate, 5- cantilever slab, 6- lengthened plate, 7- first
Ribs, the second ribs of 8-, 9- third ribs.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
All other embodiment obtained, fall within the protection scope of the utility model.
As shown in Figure 1, the utility model embodiment provides a kind of broad flange beam, including top plate 1, bottom plate 2 and connection
Web between top plate 1 and bottom plate 2, the web includes at least one straight web 3 and two skew web plates 4, described in two
Skew web plate 4 is inclined outwardly by two ends of the bottom plate 2 extends to the top plate 1 respectively, straight web 3 described in the present embodiment
There are two tools, and two straight webs 3 are located between two skew web plates 4 and are extending vertically into the top by the bottom plate 2
Plate 1 has certain intervals between each web, forms a chamber between two neighboring web, can be with using 4 form of skew web plate
Chamber number is reduced, web the piece number is reduced.Extend cantilever slab 5 outward along the two sides of the lateral top plate 1 of bridge floor, it is described outstanding
Arm plate 5 is extended with lengthened plate 6, the top plate 1, each cantilever slab 5 and each lengthened plate far from the side of the top plate 1
6 collectively form floorings, increase the width of cantilever for common box beam by the way that lengthened plate 6 is arranged, thus
While increasing bridge deck width, do not increase the number of chamber, reduces concrete amount and dead load.In order to guarantee structure
Stablize, safety, the lower section of the cantilever slab 5 and the lengthened plate 6 is provided with multiple first along floorings longitudinal gap and reinforces
Rib 7, first ribs 7 extend laterally to institute far from the side of the cantilever slab 5 for entity structure and by the lengthened plate 6
It states skew web plate 4 and is combined with skew web plate 4, change the power transmission mode of box beam, while increasing boom width, guarantee cantilever design
Stability.Be provided with the second ribs 8 in the corresponding chamber of skew web plate 4, second ribs 8 connect the top plate 1 with
And the skew web plate 4, second ribs 8 and first ribs 7 be arranged in a one-to-one correspondence and be located at it is corresponding described in
Diaphragm structure is replaced with the second ribs 8 to balance the part that the first ribs 7 generates skew web plate 4 in the two sides of skew web plate 4
Material utilization amount can be greatly decreased in active force, reduce dead load, improve economy, meanwhile, the case interior space increases, in chamber
Tensioning construction, construction personnel, material installation passage etc. are more convenient.
Preferably, the top of first ribs 7 is one with the bottom of corresponding lengthened plate 6 and cantilever slab 5
Overall structure, the bottom of first ribs 7 is higher than the bottom plate 2, and the thickness of first ribs 7 is from close to oblique abdomen
The position of plate 4 is gradually reduced to the other end, on the basis of guaranteeing cantilever design stability, reduces the dosage of concrete to the greatest extent,
Improve economy.
As one of embodiment, first ribs 7 and second ribs 8 be all made of concrete cast-in-situ and
At sound construction is easy to form.Second ribs 8 belongs to a part of box-beam structure, in the second ribs 8 reinforcing bar with
Reinforcing bar synchronous construction in web, top plate 1, binding together, the concrete of the second ribs 8 and box beam synchronize pour.
Preferably, the thickness and first ribs 7 and skew web plate 4 of second ribs 8 and 4 junction of skew web plate
The consistency of thickness of junction effectively solves the problems, such as the stress of the skew web plate 4, and reduces the material utilization amount of the second ribs 8.Into
One step preferably, is additionally provided in the corresponding chamber of the skew web plate 4 and reinforces with the symmetrically arranged third of second ribs 8
Rib 9, the third ribs 9 connect the top plate 1 and corresponding straight web 3, by the way that third ribs 9, Ke Yijin is arranged
The stability of one step increase structure.The shape of second ribs 8 and the third ribs 9 is triangular in shape, as far as possible
Ground increases the indoor space of case.
Further, floorings overall length is accounted for positioned at the sum of the cantilever slab 5 of box beam side and the length of the lengthened plate 6
The 1/5 ~ 1/4 of degree, the cantilever under the length not only can guarantee one fixed width, but also can ensure that its structural stability.It is two neighboring described
It is divided into 3 ~ 4m between first ribs 7, not only can guarantee the stability of cantilever design under the interval, but also can be reduced concrete use
Amount is arranged relatively reasonable.
This broad flange beam provided by the embodiment of the utility model is extended with far from the side of top plate 1 in cantilever slab 5 and adds
Long slab 6 forms broad flange beam structure, while using 4 form of skew web plate, reduces chamber number, web the piece number is reduced, in cantilever
The first ribs 7 is arranged in the lower section of plate 5 and lengthened plate 6, extends laterally at skew web plate 4 and engages with skew web plate 4, changes
The power transmission mode of box beam, both increases boom width, in turn ensures stable structure, safety；It is provided in the corresponding chamber of skew web plate 4
Second ribs 8 corresponding with the first ribs 7 replaces diaphragm structure with the second ribs 8 to balance the first ribs pair
Material utilization amount can be greatly decreased in the by-local forces that web generates, and reduce dead load, improve economy, meanwhile, case Interior Space
Between increase, it is more convenient that tensioning construction in chamber, construction personnel, material installation are current etc..
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model
Protection scope within.
Claims (7)
1. a kind of broad flange beam, including top plate and bottom plate and the web being connected between top plate and bottom plate, it is characterised in that:
The web includes at least one straight web and two skew web plates, and two skew web plates are respectively by two ends of the bottom plate
Portion's inclination extends to the top plate, and the straight web is located between two skew web plates and is extending vertically into the top by the bottom plate
Cantilever slab is extended in plate, the two sides along the lateral top plate of bridge floor outward, and the cantilever slab prolongs far from the side of the top plate
Stretching has lengthened plate, and the top plate, each cantilever slab and each lengthened plate collectively form floorings, the cantilever slab and
The lower section of the lengthened plate is provided with multiple first ribs along floorings longitudinal gap, and first ribs is entity structure
And by the lengthened plate far from the side of the cantilever slab extend laterally to the skew web plate and in conjunction with skew web plate, the oblique abdomen
The second ribs is provided in the corresponding chamber of plate, second ribs connects the top plate and the skew web plate, described
Second ribs is arranged in a one-to-one correspondence with first ribs and is located at the two sides of the corresponding skew web plate.
2. broad flange beam as described in claim 1, it is characterised in that: the top of first ribs and corresponding lengthening
The bottom of plate and cantilever slab is integral structure, and the bottom of first ribs is higher than the bottom plate, and described first adds
The thickness of strong rib is gradually reduced from the position close to skew web plate to the other end.
3. broad flange beam as described in claim 1, it is characterised in that: the thickness of second ribs and skew web plate junction
The consistency of thickness of degree and first ribs and skew web plate junction.
4. broad flange beam as described in claim 1, it is characterised in that: be additionally provided in the corresponding chamber of the skew web plate with
The symmetrically arranged third ribs of second ribs, the third ribs connect the top plate and corresponding straight abdomen
Plate.
5. broad flange beam as claimed in claim 4, it is characterised in that: second ribs and the third ribs
Shape is triangular in shape.
6. broad flange beam as described in claim 1, it is characterised in that: positioned at box beam side the cantilever slab and it is described plus
The sum of length of long slab accounts for the 1/5 ~ 1/4 of floorings total length.
7. broad flange beam as described in claim 1, it is characterised in that: the interval between two neighboring first ribs
For 3 ~ 4m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821227083.8U CN208815390U (en) | 2018-08-01 | 2018-08-01 | A kind of broad flange beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821227083.8U CN208815390U (en) | 2018-08-01 | 2018-08-01 | A kind of broad flange beam |
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| Publication Number | Publication Date |
|---|---|
| CN208815390U true CN208815390U (en) | 2019-05-03 |
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ID=66272189
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821227083.8U Active CN208815390U (en) | 2018-08-01 | 2018-08-01 | A kind of broad flange beam |
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| CN (1) | CN208815390U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111720099A (en) * | 2020-07-20 | 2020-09-29 | 成都鑫泽机械有限公司 | Beam pumping unit beam structure convenient to install and installation and maintenance method |
| WO2021018119A1 (en) * | 2019-07-31 | 2021-02-04 | 中铁二院工程集团有限责任公司 | Combined road-rail box-truss girder bridge section |
-
2018
- 2018-08-01 CN CN201821227083.8U patent/CN208815390U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021018119A1 (en) * | 2019-07-31 | 2021-02-04 | 中铁二院工程集团有限责任公司 | Combined road-rail box-truss girder bridge section |
| CN111720099A (en) * | 2020-07-20 | 2020-09-29 | 成都鑫泽机械有限公司 | Beam pumping unit beam structure convenient to install and installation and maintenance method |
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