CN209194845U - A kind of novel plate girder and steel-concrete connecting beam - Google Patents
A kind of novel plate girder and steel-concrete connecting beam Download PDFInfo
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- CN209194845U CN209194845U CN201822089802.0U CN201822089802U CN209194845U CN 209194845 U CN209194845 U CN 209194845U CN 201822089802 U CN201822089802 U CN 201822089802U CN 209194845 U CN209194845 U CN 209194845U
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Abstract
The utility model discloses a kind of novel plate girders and steel-concrete connecting beam, wherein, novel plate girder includes the first assembly portion and the second assembly portion, first assembly portion includes the flange plate one and web one of whole roll forming, second assembly portion includes the flange plate two and web two of whole roll forming, and web one is connected with web two by butt weld；Steel-concrete connecting beam includes any novel plate girder, and the concrete slab being covered on novel plate girder, is connected with connector between novel plate girder and concrete slab.The plate girder of the utility model passes through the assembly in the first assembly portion and the second assembly portion, steel plate depth of beam can be not only greatly improved, and the first assembly portion and the second assembly portion, by roll forming, web is closely connect with flange plate, no fillet weld exists, and transmission force property is excellent；Further, the first assembly portion is connected with the second assembly portion by butt weld, and processing and fabricating is convenient, and the welding quality of butt weld is easy to ensure.
Description
Technical field
The utility model relates to technical field of bridge engineering, in particular to a kind of novel plate girder and steel-concrete connecting beam.
Background technique
Steel-concrete connecting beam can give full play to that steel tensile strength is high, ductility is good and concrete crushing strength height, rigidity are big
Material sexual clorminance, in science of bridge building using more and more extensive.It is using I-shaped steel plate mostly in steel-concrete connecting beam
Beam, especially for the bridge of middle large span, rigidity and bending resistance to girder require very high, the design of main depth of beam, that is, girder steel
The case where height can reach greater than 2m；But under existing processing technology, only 1.2m deck-molding plate girder below can be by whole
Body is rolling.As Figure 1-Figure 2, plate girder more than 1.2m deck-molding is all by the way that two flange plates 2 are respectively welded at
Molding on web 1, such a plate girder just includes 4 fillet welding crack structures, although the mode of welding can satisfy deck-molding
It is required that but a fairly large number of fillet weld 3 not only weld strength is big, but also the deformation extent of welding quality and plate girder is difficult to
Guarantee, fillet weld 3 becomes the weakness zone of structure stress, and the processing method of this plate girder has seriously affected the peace of bridge structure
Entirely.
Utility model content
The purpose of the utility model is to overcome the above-mentioned deficiencies in the presence of the prior art, provide a kind of novel steel plate
Beam and steel-concrete connecting beam.
In order to achieve the above-mentioned object of the invention, the utility model provides following technical scheme:
A kind of novel plate girder, including the first assembly portion and the second assembly portion, first assembly portion include whole roll
Molding flange plate one and web one are made, second assembly portion includes the flange plate two and web two of whole roll forming, and
The web one is connected with web two by butt weld.
Novel plate girder described in the utility model, not only can be with by the assembly in the first assembly portion and the second assembly portion
Steel plate depth of beam is greatly improved, can be more than the plate girder of 2m with machine-shaping deck-molding, and the first assembly portion and the second assembly portion
By roll forming, web is closely connect with flange plate, and no fillet weld exists, and solves fillet weld seam quality problems, power transmission
It has excellent performance；Further, the first assembly portion is connected with the second assembly portion by butt weld, and processing and fabricating is convenient, is convenient for
Transport, the welding quality of butt weld are easy to ensure.
Particularly, the first assembly described in the utility model portion and the second assembly portion can roll I-steel by whole
It cuts to obtain again, or whole rolled h-section steel beam cuts to obtain again, or the various ways such as whole rolling T-steel obtain, as long as can be same
When roll out flange plate and web.And the width and thickness of flange plate one described in the utility model and flange plate two can phase
Together, can not also be identical, depending on Structural Design Requirement.It preferably, can when steel plate girder construction is applied in steel-concrete connecting beam
Suitably reduce the width and thickness of top flange plate with the compressive property using concrete.
Preferably, the web one and web two are equipped with several cavitys, and the presence of cavity, which not only can reduce, uses steel
Amount, reduces cost, and be substantially shorter fusion length, reduces welding workload.
Preferably, the cavity is located on web one or web two, or positioned at the join domain of web one and web two.Tool
Body, when cavity is located at join domain, it can be following mode, if the side quilt of the separate flange plate one of the web one
Dry cavity unit one is truncated, and the side of the separate flange plate two of the web two is also truncated by several cavity units two,
And the opening of the cavity unit one and the cavity unit two is mutually adapted, and forms cavity, web one and web two are not
Region is truncated then to connect by butt weld.
Preferably, the shape of the cavity includes polygon, circle and similar round, is not limited to above-mentioned shape, is also possible to
Other various unusual shapes, but, in order to guarantee the integral strength of structure, it is preferred that the cavity is axially symmetric structure.
Preferably, first assembly portion is identical with size, the shape in the second assembly portion, convenient for assembled processing, certainly, institute
Stating the size in the first assembly portion and the second assembly portion, shape identical can also be different.
Preferably, to be whole rolled steel plate-girder cut along cutting track first assembly portion and the second assembly portion and
At the cutting track includes several trajectory units interconnected, and each trajectory unit includes eminence cutting line, low
Locate the connection cutting line of cutting line and connection the eminence cutting line and lower cutting line, the eminence cutting line and lower are cut
Secant is horizontal line, and the equal length of the eminence cutting line and lower cutting line.The first assembly portion and second is obtained to spell
Behind dress portion, after the assembled simultaneously butt welding of two assembly portion dislocation, so that it may the plate girder after being increased.
It is cut according to above-mentioned cutting track, taking full advantage of whole rolled plate (can be I-steel or H-type
Steel etc.) processed edge, not only process it is extremely convenient, and by simply dislocation assembly can effectively increase plate girder
Highly, the web naturally occurring cavity for increasing the plate girder after deck-molding, is greatly reduced steel using amount, reduces costs.Certainly,
One assembly portion and the second assembly portion can also obtain by other means, be not limited to above-mentioned integral cutting mode, such as two spellings
Dress portion is to be respectively cut in two pieces of different whole rolled plates, or distinguish rolling two assembly portions etc..Cavity
Acquisition be also not necessarily limited to above-mentioned integral cutting self-assembling formation, can also specially make cavity to mitigate the weight of web.
Preferably, each connection cutting line is straight line or curve, described straight for the ease of processing, preferably straight line
Line includes vertical line and oblique line, in order to further increase the area of cavity, reduction steel using amount, preferably oblique line.
Preferably, two of each trajectory unit connection cutting lines are relative to the eminence cutting line axial symmetry
Setting, at this point, the girder steel plate completed the process is symmetrical structure, performance is more preferably.
Preferably, distance of the eminence cutting line apart from the flange plate one is equal to described in the lower cutting line distance
The distance of flange plate two, relative to symmetrical centered on whole rolled plate central, transverse axis, at this point, two pieces of assembly portions that cutting is formed
Size, shape it is consistent, convenient for assembled processing.
Preferably, the butt weld is full penetration butt weld, further increases bonding strength, meets bridge steel beam slab
Intensity requirement.
The invention also discloses a kind of steel-concrete connecting beams, including the novel plate girder of any described one kind, and
The concrete slab being equipped on the novel plate girder is connected with connection between the novel plate girder and concrete slab
Part, to form the overall structure of common stress.The connector can be WELDING STUDS etc..At this point, not only novel plate girder
Deck-molding greatly improve, meet construction requirement, and solve the quality problems of fillet weld, then in oversite concrete plate above, then
The material sexual clorminance that steel tensile strength is high, ductility is good and concrete crushing strength is high, rigidity is big is given full play to, is highly suitable for
Science of bridge building field.
Compared with prior art, the utility model has the beneficial effects that
1, novel plate girder described in the utility model passes through the assembly in the first assembly portion and the second assembly portion, not only may be used
It can be more than the plate girder of 2m with machine-shaping deck-molding to greatly improve steel plate depth of beam, and the first assembly portion and second assembled
Portion is closely connect by roll forming, web with flange plate, and no fillet weld exists, and solves fillet weld seam quality problems, is passed
Power is had excellent performance；Further, the first assembly portion is connected with the second assembly portion by butt weld, and processing and fabricating is convenient, just
In transport, the welding quality of butt weld is easy to ensure.
2, several cavitys are formed between the web one and web two, the presence of cavity, which not only can reduce, uses steel
Amount, reduces cost, and be substantially shorter fusion length, reduces welding workload.
3, the assembly portion is that whole rolled steel plate-girder is cut along cutting track, takes full advantage of whole rolled steel
The processed edge of plate, not only processes extremely convenient, and can effectively increase the height of plate girder by simply dislocation assembly
Degree, the web naturally occurring cavity of the plate girder after increasing deck-molding, is greatly reduced steel using amount, reduces costs.
4, in steel-concrete connecting beam described in the utility model, not only the deck-molding of novel plate girder is greatly improved, and satisfaction is applied
Work requirement, and solve the quality problems of fillet weld, then in oversite concrete plate above, then give full play to steel tensile strength
Material sexual clorminance high, ductility is good and concrete crushing strength is high, rigidity is big, is highly suitable for science of bridge building field.
Detailed description of the invention:
Fig. 1 is the front view of the existing plate girder being welded described in background technology.
Fig. 2 is the side view of the existing plate girder being welded described in background technology.
It is marked in Fig. 1-Fig. 2: 1- web, 2- flange plate, 3- fillet weld.
Fig. 3 is the front view of the novel plate girder of one kind described in the utility model embodiment 1.
Fig. 4 is the side view of the novel plate girder of one kind described in the utility model embodiment 1.
Fig. 5 is the front view in the first assembly portion described in the utility model embodiment 1.
Fig. 6 is the side view in the first assembly portion described in the utility model embodiment 1.
Fig. 7 is the front view in the second assembly portion described in the utility model embodiment 1.
Fig. 8 is the side view in the second assembly portion described in the utility model embodiment 1.
Fig. 9 is that the first assembly portion and the second assembly portion described in the utility model embodiment 1 are cut along cutting track
The schematic diagram cut.
Figure 10 is the schematic diagram of cutting track described in the utility model embodiment 1.
Figure 11 is the front view of steel-concrete connecting beam described in the utility model embodiment 2.
Figure 12 is the side view of steel-concrete connecting beam described in the utility model embodiment 2.
Figure 13 is the front view of the novel plate girder of one kind described in the utility model embodiment 3.
Figure 14 is the front view of the novel plate girder of one kind described in the utility model embodiment 4.
Figure 15 is the front view of the novel plate girder of one kind described in the utility model embodiment 5.
Figure 16 is the front view of the novel plate girder of one kind described in the utility model embodiment 6.
Figure 17 is the signal of the plate girder when width of flange plate one and flange plate two described in the utility model is not identical
Figure.
It is marked in Fig. 3-Figure 17: the first assembly of 1- portion, 11- flange plate one, 12- web one, the second assembly of 2- portion, the 21- wing
Listrium two, 22- web two, 3- butt weld, 4- cavity, 41- cavity unit one, 42- cavity unit two, 5- cutting track, 51-
Trajectory unit, 52- eminence cutting line, 53- lower cutting line, 54- connection cutting line, 6- concrete slab, 7- connector.
Specific embodiment
The utility model is described in further detail below with reference to embodiment and specific embodiment.But it should not be by this
The range for being interpreted as the above-mentioned theme of the utility model is only limitted to embodiment below, all to be realized based on the content of the present invention
Technology belongs to the scope of the utility model.
Embodiment 1
As shown in Fig. 3-Fig. 8, a kind of novel plate girder, including the first assembly portion 1 and the second assembly portion 2, described first
Assembled portion 1 includes the flange plate 1 and web 1 of whole roll forming, and second assembly portion 2 includes whole roll forming
Flange plate 2 21 and web 2 22, and the web 1 and web 2 22 are connected by butt weld 3, the butt welding
Seam 3 is full penetration butt weld.The cavity 4 of several hexagons is formed between the web 1 and web 2 22, it is described
Cavity 4 is axially symmetric structure.Specifically, the side of the separate flange plate 1 of the web 1 is by several cavity units one
41 truncations, and the side of the separate flange plate 2 21 of the web 2 22 is also truncated by several cavity units 2 42, and described
The opening of cavity unit 1 and the cavity unit 2 42 is mutually adapted, and forms cavity 4.
First assembly portion 1 is identical with size, the shape in the second assembly portion 2, consequently facilitating assembled welding.In this implementation
In give a kind of first assembly portion 1 and the preferable acquisition pattern in the second assembly portion 2, it is described specifically, as shown in Fig. 9-Figure 10
First assembly portion 1 and the second assembly portion 2 are that whole rolled steel plate-girder is cut along cutting track 5, and the cutting track 5 wraps
Several trajectory units 51 interconnected are included, each trajectory unit 51 includes eminence cutting line 52, lower cutting line 53
And the connection cutting line 54 of connection the eminence cutting line 52 and lower cutting line 53, the eminence cutting line 52 and lower are cut
Secant 53 is horizontal line, and the equal length of the eminence cutting line 52 and lower cutting line 53, in the present embodiment, each
The connection cutting line 54 is preferably oblique line, to form the cavity 4 of hexagon.
Particularly, in the present invention, as shown in figure 4, the width and thickness of flange plate 1 and flange plate 2 21 can
To be identical.But can also as indicated at 17, the width and thickness of flange plate 1 and flange plate 2 21 can be not identical
, goal of the invention equally may be implemented.
The process of above-mentioned novel plate girder the following steps are included:
Step 1: whole rolled steel plate-girder is obtained by whole roll, at this point, the web of whole rolled steel plate-girder and the edge of a wing
Without fillet weld between plate, reduce the weak link of structure stress.
Step 2: it as shown in figure 9, the web of the whole rolled steel plate-girder is cut according to cutting track 5, is formed
First assembly portion 1 and the second assembly portion 2.Wherein, as shown in Figure 10, the cutting track 5 includes several rails interconnected
Mark unit 51, each trajectory unit 51 include eminence cutting line 52, and lower cutting line 53 connects the eminence cutting line 52
With the connection cutting line 54 of lower cutting line 53, the eminence cutting line 52 and lower cutting line 53 are horizontal line, and described
The equal length of eminence cutting line 52 and lower cutting line 53, i.e. L1=L2.Specifically, in the present embodiment, each company
Connecing cutting line 54 is oblique line, and the connection cutting line 54 of two of each trajectory unit 51 is relative to the eminence cutting line
The setting of 52 axial symmetry, and distance of the eminence cutting line 52 apart from the flange plate 1 is not equal to the lower cutting line 53
Distance apart from the flange plate 2 21, i.e. D1 ≠ D2.
Step 3: the first assembly portion 1 and the second assembly portion 2 are finally subjected to dislocation assembly, by the eminence cutting line 52
Full penetration butt welding is carried out after being aligned with lower cutting line 53, obtains increasing the plate girder after deck-molding.At this point, butt weld 3
Length is far smaller than the length of traditional fillet weld, reduces welding workload, and cavity 4 is formd at steel plate web,
On the basis of meeting Structural strength calls, reduce steel using amount, reduces construction cost.
Embodiment 2
As shown in Figure 11-Figure 12, a kind of steel-concrete connecting beam, including the novel plate girder of any described one kind, Yi Ji
The concrete slab 6 being covered on the novel plate girder is connected with connection between the novel plate girder and concrete slab 6
Part 7, to form the overall structure of common stress.The connector 7 can be WELDING STUDS etc..At this point, not only novel steel plate
The deck-molding of beam greatly improves, and meets construction requirement, and solves the quality problems of fillet weld, then in oversite concrete plate above,
The material sexual clorminance that steel tensile strength is high, ductility is good and concrete crushing strength is high, rigidity is big is then given full play to, is applicable in very much
In science of bridge building field.
Embodiment 3
As shown in figure 13, the present embodiment the difference from embodiment 1 is that, distance of the cavity 4 apart from the flange plate 1
Distance equal to cavity 4 apart from the flange plate 2 21, i.e., when cutting, the eminence cutting line 52 is apart from the edge of a wing
The distance of plate 1 is equal to distance of the lower cutting line 53 apart from the flange plate 2 21, i.e. D1=D2.Shape is cut in this way
At first assembly portion 1 it is identical with size, the shape in the second assembly portion 2, convenient for assembled processing.
In the case that the deck-molding of whole rolled steel plate-girder 1 is 1.2m, not using processing method described in the utility model
The plate girder that deck-molding is greater than 1.2m can only be processed, it might even be possible to process the plate girder that deck-molding is greater than or equal to 2m.At this
In embodiment, the deck-molding of whole rolled steel plate-girder 1 is 1.2m, the D1=D2=0.15m of cutting track 5, at this point, assembled welding adds
The deck-molding for the plate girder that work goes out is 2.1m.
Embodiment 4
As shown in figure 14, the present embodiment the difference from embodiment 1 is that, the shape of the cavity 4 is rectangle, that is, is being cut
When, two connection cutting lines 54 of the trajectory unit 51 are vertical line.The novel plate girder of such form, equally
It can effectively improve the height of web, realize goal of the invention.
Embodiment 5
As shown in figure 15, the present embodiment the difference from embodiment 1 is that, the cavity 4 is not polygonized structure, cavity 4
Edge there is camber line.I.e. when cutting, the connection cutting line 54 of two of trajectory unit 51 is curve, such
The novel plate girder of form equally can effectively improve the height of web, realize goal of the invention.
Embodiment 6
As shown in figure 16, the present embodiment the difference from embodiment 1 is that, the cavity 4 is not polygonized structure, cavity 4
Edge there is the mixing of camber line and straight line.I.e. when cutting, the connection cutting line 54 of one of trajectory unit 51
For curve, another connection cutting line 54 is straight line, and the novel plate girder of such form equally can effectively improve abdomen
The height of plate realizes goal of the invention.
Above embodiments are only to illustrate the utility model and not limit technical solution described in the utility model, to the greatest extent
Pipe this specification has been carried out detailed description to the utility model referring to above-mentioned each embodiment, but the utility model not office
It is limited to above-mentioned specific embodiment, therefore any pair of the utility model is modified or equivalent replacement；And all do not depart from it is practical
The technical solution and its improvement of novel spirit and scope, should all cover in the scope of the claims of the utility model.
Claims (10)
1. a kind of novel plate girder, which is characterized in that including the first assembly portion (1) and the second assembly portion (2), described first is spelled
Dress portion (1) includes the flange plate one (11) and web one (12) of whole roll forming, and second assembly portion (2) includes whole rolls
Molding flange plate two (21) and web two (22) are made, and the web one (12) and web two (22) pass through butt weld (3)
It is connected.
2. the novel plate girder of one kind according to claim 1, which is characterized in that the web one (12) and web two
(22) several cavitys (4) are equipped with.
3. the novel plate girder of one kind according to claim 2, which is characterized in that the cavity (4) is located at web one
(12) or on web two (22), or it is located at the join domain of web one (12) and web two (22).
4. the novel plate girder of one kind according to claim 3, which is characterized in that the separate edge of a wing of the web one (12)
The side of plate one (11) is truncated by several cavity units one (41), and the separate flange plate two (21) of the web two (22)
Side is also truncated by several cavity units two (42), and the cavity unit one (41) and the cavity unit two (42) are opened
Mouth is mutually adapted, and forms the cavity (4).
5. the novel plate girder of one kind according to claim 2, which is characterized in that the shape packet of each cavity (4)
It includes polygon, circle and similar round and/or each cavity (4) is axially symmetric structure.
6. the novel plate girder of one kind according to claim 1, which is characterized in that first assembly portion (1) and second
Size, the shape of assembled portion (2) are identical.
7. the novel plate girder of one kind according to claim 1, which is characterized in that first assembly portion (1) and second
Assembled portion (2) is that whole rolled steel plate-girder is cut along cutting track (5), and the cutting track (5) includes several phases
The trajectory unit (51) to connect, each trajectory unit (51) include eminence cutting line (52), lower cutting line (53) with
And the connection cutting line (54) of connection the eminence cutting line (52) and lower cutting line (53), the eminence cutting line (52) and
Lower cutting line (53) is horizontal line, and the equal length of the eminence cutting line (52) and lower cutting line (53).
8. the novel plate girder of one kind according to claim 7, which is characterized in that each connection cutting line (54) is
Straight line or curve, the straight line include vertical line and oblique line.
9. the novel plate girder of -8 any described one kind according to claim 1, which is characterized in that the butt weld (3) is
Full penetration butt weld.
10. a kind of steel-concrete connecting beam, which is characterized in that including the novel steel plate of one kind as described in claim 1-9 is any
Beam, and the concrete slab (6) being equipped on the novel plate girder, the novel plate girder and the concrete slab
(6) connector (7) are connected between.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822089802.0U CN209194845U (en) | 2018-12-12 | 2018-12-12 | A kind of novel plate girder and steel-concrete connecting beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822089802.0U CN209194845U (en) | 2018-12-12 | 2018-12-12 | A kind of novel plate girder and steel-concrete connecting beam |
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| CN209194845U true CN209194845U (en) | 2019-08-02 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109372184A (en) * | 2018-12-12 | 2019-02-22 | 中铁二院工程集团有限责任公司 | A kind of novel plate girder and steel-concrete connecting beam |
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2018
- 2018-12-12 CN CN201822089802.0U patent/CN209194845U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109372184A (en) * | 2018-12-12 | 2019-02-22 | 中铁二院工程集团有限责任公司 | A kind of novel plate girder and steel-concrete connecting beam |
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