CN109518586A - It is a kind of novel to increase plate girder, steel-concrete connecting beam and its processing method - Google Patents
It is a kind of novel to increase plate girder, steel-concrete connecting beam and its processing method Download PDFInfo
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- CN109518586A CN109518586A CN201910034160.0A CN201910034160A CN109518586A CN 109518586 A CN109518586 A CN 109518586A CN 201910034160 A CN201910034160 A CN 201910034160A CN 109518586 A CN109518586 A CN 109518586A
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- assembly portion
- girder
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- web
- cutting line
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Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2/00—Bridges characterised by the cross-section of their bearing spanning structure
- E01D2/02—Bridges characterised by the cross-section of their bearing spanning structure of the I-girder type
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/20—Concrete, stone or stone-like material
- E01D2101/24—Concrete
- E01D2101/26—Concrete reinforced
- E01D2101/268—Composite concrete-metal
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/30—Metal
Abstract
Novel increase plate girder, steel-concrete connecting beam and its processing method the invention discloses a kind of, increasing plate girder includes the first assembly portion, the second assembly portion and third 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, third assembly portion includes steel plate, and both ends are connected with web one and web two by butt weld respectively；Steel-concrete connecting beam include any one kind it is novel increase plate girder, and in the novel concrete slab being equipped on plate girder that increases, novel increasing is connected with connector between plate girder and concrete slab；Processing method is to obtain whole rolled steel plate-girder by whole roll；The web of whole rolled steel plate-girder is cut according to cutting line, forms the first assembly portion and the second assembly portion；First assembly portion and third assembly portion are subjected to butt welding, the second assembly portion and third assembly portion are subjected to butt welding, obtain increasing plate girder.
Description
Technical field
The present invention relates to technical field of bridge engineering, in particular to it is a kind of it is novel increase plate girder, steel-concrete connecting beam and
Its processing method.
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.
Summary of the invention
It is an object of the invention to overcome the above-mentioned deficiency in the presence of the prior art, provides and a kind of novel increase steel plate
Beam, steel-concrete connecting beam and its processing method.
In order to achieve the above-mentioned object of the invention, the present invention provides following technical schemes:
It is a kind of it is novel increase plate girder, including the first assembly portion, the second assembly portion and third assembly portion, described first spells
Dress portion includes the flange plate one and web one of whole roll forming, and second assembly portion includes the flange plate of whole roll forming
Two and web two, the cross section in first assembly portion and the second assembly portion is T shape, and third assembly portion includes steel plate, and
The both ends in third assembly portion are connected with the web one and web two by butt weld respectively.
The novel spelling increased plate girder and pass through the first assembly portion, the second assembly portion and third assembly portion of the present invention
Dress, can not only greatly improve steel plate depth of beam, can be more than the plate girder of 2m with machine-shaping deck-molding.Further, only lead to
Cross the deck-molding for increasing third assembly portion, so that it may significantly improve the deck-molding for entirely increasing plate girder, be highly convenient for processing；And first spells
By roll forming, web is closely connect with flange plate for dress portion and the second assembly portion, and no fillet weld exists, and solves fillet welding seam weld
Quality problems are connect, transmission force property is excellent；Finally, the first assembly portion, the second assembly portion and third assembly portion pass through butt weld phase
Connection, processing and fabricating is convenient, is readily transported, the welding quality of butt weld is easy to ensure.
Particularly, the first assembly of the present invention portion and the second assembly portion can be cut again by the whole I-steel that rolls
It cuts to obtain, 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 roll simultaneously
Produce flange plate and web.And the width and thickness of flange plate one of the present invention and flange plate two can be identical, it can also
It is not identical, depending on Structural Design Requirement.Preferably, it when steel plate girder construction is applied in steel-concrete connecting beam, can use mixed
The compressive property for coagulating soil suitably reduces the width and thickness of top flange plate.
Preferably, third assembly portion further includes the ribbed stiffener being equipped in steel plate, to increase plate girder described in enhancing
Rigidity.
Preferably, several cavitys are additionally provided on the web one, third assembly portion and web two, the presence of cavity is not only
It can reduce steel using amount, reduce cost, and be substantially shorter fusion length, reduce welding workload.
Preferably, the cavity is located on the web one or third assembly portion or web two or the cavity is located at institute
State the join domain of web one, third assembly portion and web two.
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, first assembly portion and the second assembly portion are that whole rolled steel plate-girder is formed along cutting wire cutting.
Preferably, the cutting line is straight line.
Preferably, the cutting line is broken line, and the cutting line includes several cutter units interconnected, Mei Gesuo
Stating cutter unit includes eminence cutting line, and the connection of lower cutting line and the connection eminence cutting line and lower cutting line is cut
Secant, the eminence cutting line and lower cutting line are horizontal line, and the length of the eminence cutting line and lower cutting line
It is equal.It is after obtaining the first assembly portion and the second assembly portion, two assembly portion dislocation are assembled, and docked respectively with third assembly portion
Postwelding, so that it may increase plate girder described in obtaining.
It is cut according to above-mentioned broken line cutting line, taking full advantage of whole rolled plate (can be I-steel or H
Fashioned iron etc.) processed edge, not only process it is extremely convenient, and by simply dislocation assembly can effectively increase plate girder
Height, increase deck-molding after plate girder web naturally occurring cavity, steel using amount is greatly reduced, reduces costs.Certainly,
First assembly portion and the second assembly portion can also obtain by other means, be not limited to above-mentioned integral cutting mode, and such as two
Assembled portion is to be respectively cut in two pieces of different whole rolled plates, or distinguish rolling two assembly portions etc..It is empty
The acquisition of chamber is 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 cutter unit connection cutting lines are relative to the eminence cutting line axial symmetry
Setting, at this point, the girder steel plate that increases completed the process is symmetrical structure, performance is more preferably.
Preferably, the butt weld is full penetration butt weld, further increases bonding strength, meets bridge steel beam slab
Intensity requirement.
Preferably, first assembly portion, the second assembly portion and third assembly portion are all made of weathering steel, are not necessarily to coating, side
Just it constructs.
The invention also discloses it is a kind of it is novel increase steel-concrete connecting beam, increase including any described one kind is novel
Plate girder, and in the novel concrete slab for increasing pouring molding on plate girder, it is described it is novel increase plate girder and
Several connectors are connected between the concrete slab, to form the overall structure of common stress.The connector can be with
It is WELDING STUDS etc..At this point, the deck-molding for not only increasing plate girder greatly improves, meet construction requirement, and solves the matter of fillet weld
Amount problem, then in oversite concrete plate above, then give full play to that steel tensile strength is high, ductility is good and concrete crushing strength
Material sexual clorminance high, rigidity is big, is highly suitable for science of bridge building field.
The invention also discloses a kind of novel processing methods for increasing plate girder, comprising the following steps:
Step 1: whole rolled steel plate-girder is obtained by whole roll；
Step 2: the web of the whole rolled steel plate-girder is cut according to cutting line, formed the first assembly portion with
Second assembly portion；
Step 3: first assembly portion and third assembly portion are subjected to butt welding, by second assembly portion and third
Assembled portion carries out butt welding, obtains increasing plate girder.
What processing obtained through the invention increases plate girder, is integrally rolled using batch production, web closely connects with flange plate
It connects, no fillet weld exists, and transmission force property is excellent；And processing and fabricating is convenient, is readily transported, the welding quality of butt weld is easy to protect
Barrier, further, can greatly improve steel plate depth of beam, can be more than the girder steel plate of 2m with machine-shaping deck-molding, or even remote super
Cross the plate girder of 2m.
Particularly, whole rolled steel plate-girder of the present invention can be I-steel or H profile steel, and I-steel or H-type
The width and thickness of two blocks of flange plates up and down of steel may be the same or different.The cutting line can be straight line and be also possible to roll over
The partial region of line, the broken line can be curve.
Preferably, the distance of top flange plate of the cutting line apart from the whole rolled steel plate-girder is equal to the cutting line
The distance of bottom wing listrium apart from the whole rolled steel plate-girder, at this point, size, the shape one of the two module unit plates that cutting is formed
It causes, convenient for assembled processing.
Compared with prior art, it is of the present invention increase plate girder the utility model has the advantages that
The novel spelling increased plate girder and pass through the first assembly portion, the second assembly portion and third assembly portion of the present invention
Dress, can not only greatly improve steel plate depth of beam, can be more than the plate girder of 2m with machine-shaping deck-molding.Further, only lead to
Cross the deck-molding for increasing third assembly portion, so that it may significantly improve the deck-molding for entirely increasing plate girder, be highly convenient for processing；And first spells
By roll forming, web is closely connect with flange plate for dress portion and the second assembly portion, and no fillet weld exists, and solves fillet welding seam weld
Quality problems are connect, transmission force property is excellent；Finally, the first assembly portion, the second assembly portion and third assembly portion pass through butt weld phase
Connection, processing and fabricating is convenient, is readily transported, the welding quality of butt weld is easy to ensure.
Compared with prior art, it is of the present invention increase steel-concrete connecting beam the utility model has the advantages that
Of the present invention to increase in steel-concrete connecting beam, the deck-molding for not only increasing plate girder greatly improves, and meets construction and wants
It asks, and solves the quality problems of fillet weld, then in oversite concrete plate above, then give full play to steel tensile strength height, prolong
The material sexual clorminance that malleability is good and concrete crushing strength is high, rigidity is big, is highly suitable for science of bridge building field.
Compared with prior art, the processing method of the present invention for increasing plate girder the utility model has the advantages that
What processing obtained through the invention increases plate girder, is integrally rolled using batch production, web closely connects with flange plate
It connects, no fillet weld exists, and transmission force property is excellent；And processing and fabricating is convenient, is readily transported, the welding quality of butt weld is easy to protect
Barrier, further, can greatly improve steel plate depth of beam, can be more than the girder steel plate of 2m with machine-shaping deck-molding, or even remote super
Cross the plate girder of 2m.
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 for increasing plate girder novel described in the embodiment of the present invention 1.
Fig. 4 is the side view for increasing plate girder novel described in the embodiment of the present invention 1.
Fig. 5 is the side view for increasing plate girder novel described in the embodiment of the present invention 2.
Fig. 6 is the front view of whole rolled steel plate-girder cutting described in the embodiment of the present invention 1.
Fig. 7 is the side view of whole rolled steel plate-girder cutting described in the embodiment of the present invention 1.
Fig. 8 is the front view for increasing plate girder novel described in the embodiment of the present invention 3.
Fig. 9 is the side view for increasing plate girder novel described in the embodiment of the present invention 3.
Figure 10 is the front view of whole rolled steel plate-girder cutting described in the embodiment of the present invention 3.
Figure 11 is the schematic diagram of cutting line described in the embodiment of the present invention 3.
Figure 12 is the front view for increasing steel-concrete connecting beam novel described in the embodiment of the present invention 4.
Figure 13 is the side view for increasing steel-concrete connecting beam novel described in the embodiment of the present invention 4.
It is marked in Fig. 3-Figure 13: 0- entirety rolled steel plate-girder, the first assembly of 1- portion, 11- flange plate one, 12- web one, 2-
Second assembly portion, 21- flange plate two, 22- web two, 3- third assembly portion, 31- ribbed stiffener, 4- butt weld, 5- cutting line,
51- cutter unit, 52- eminence cutting line, 53- lower cutting line, 54- connection cutting line, 6- concrete slab, 7- connector.
Specific embodiment
Below with reference to test example and specific embodiment, the present invention is described in further detail.But this should not be understood
It is all that this is belonged to based on the technology that the content of present invention is realized for the scope of the above subject matter of the present invention is limited to the following embodiments
The range of invention.
Embodiment 1
As Figure 3-Figure 4, a kind of novel to increase plate girder, including the first assembly portion 1, the second assembly portion 2 and third
Assembled portion 3, first assembly portion 1 include the flange plate 1 and web 1 of whole roll forming, second assembly portion 2
The cross section in flange plate 2 21 and web 2 22 including whole roll forming, first assembly portion 1 and the second assembly portion 2 is
T shape, third assembly portion 3 includes steel plate, and the web 1 is connected with third assembly portion 3 by butt weld 4
It connects, the web 2 22 is connected with third assembly portion 3 by butt weld 4.
Particularly, the first assembly of the present invention portion 1 and the second assembly portion 2 can roll I-steel again by whole
Cutting obtains, 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 simultaneously
Roll out flange plate and web.And the width and thickness of flange plate 1 of the present invention and flange plate 2 12 can phase
Together, can not also be identical, depending on Structural Design Requirement.
In the present embodiment, as Figure 6-Figure 7, first assembly portion 1 and the second assembly portion 2 are by cutting whole roll
Plate girder 0 processed obtains, specifically, whole rolled steel plate-girder 0 is divided into two along straight cuts line 5, then spells described first
Butt welding third assembly portion 3 between dress portion 1 and the second assembly portion 2, to increase deck-molding, to obtain increasing plate girder.
Embodiment 2
As shown in figure 5, the present embodiment the difference from embodiment 1 is that, also according to setting on the steel plate in third assembly portion 3
Meter, which needs to design, vertical or lateral ribbed stiffener 31, to enhance the rigidity of plate girder.The ribbed stiffener 31 can with it is described
Steel plate is welded to connect, and can also be integrally formed with the steel plate.The ribbed stiffener 31 can be laterally arranged along the steel plate, or
It is vertically arranged, or laterally/vertical arranged in a crossed manner.And above-mentioned add can also be equipped in first assembly portion 1 and the second assembly portion 2
Strength rib 31.
Embodiment 3
As illustrated in figs. 8-9, the present embodiment the difference from embodiment 1 is that, it is described increase be additionally provided on plate girder it is several
A cavity, specifically, in the present embodiment, the cavity is located at the company of the web 1, third assembly portion 3 and web 2 22
Region is connect, certain cavity can also individually be located on one 12/ third assembly portion of web, 3/ web 2 22, and cavity can pass through digging
Hole obtains, and can also can spelled in assembled integral preceding acquisition by the assembled self-assembling formation between assembled portion, cavity
Self-assembling formation when dressing up entirety can also obtain again after assembly is integral.
As shown in figs. 10-11, process it is above-mentioned when increasing plate girder, can be along cutting line 5 by whole rolled plate
Beam 0 is divided into two, and obtains the first assembly portion 1 and the second assembly portion 2, and the cutting line 5 is broken line, if the cutting line 5 includes
A dry cutter unit 51 interconnected, each cutter unit 51 include eminence cutting line 52, lower cutting line 53 and
Connect the connection cutting line 54 of the eminence cutting line 52 and lower cutting line 53, the eminence cutting line 52 and lower cutting line
53 be horizontal line, and the equal length of the eminence cutting line 52 and lower cutting line 53, i.e. L1=L2.Each connection
Cutting line 54 can be straight line or curve, and the straight line includes vertical line and oblique line.Specifically, in the present embodiment, Mei Gesuo
Stating connection cutting line 54 is oblique line, and the connection cutting line 54 of two of each cutter unit 51 is cut relative to the eminence
The setting of 52 axial symmetry of secant, and the distance of flange plate of the eminence cutting line 52 apart from the whole rolled steel plate-girder 0 is equal to
The distance of flange plate of the lower cutting line 53 apart from the whole rolled steel plate-girder 0, i.e. D1=D2.
In the present embodiment, it is cut and is misplaced by the cutting line of broken line type 5 assembly, it can be natural on plate girder
Cavity is formed, rolled steel dosage can not only be further reduced, reduce cost, and can be reduced the length of butt weld 4, reduces Welder
It measures.
Embodiment 4
As shown in Figure 12-Figure 13, it is a kind of it is novel increase steel-concrete connecting beam, including the novel increasing of any described one kind
High plate girder, and it is described it is novel increase the concrete slab 6 being equipped on plate girder, it is described novel to increase plate girder and institute
It states and is connected with connector 7 between concrete slab 6, to form the overall structure of common stress.The connector 7 can be shearing
Nail etc..At this point, not only the novel deck-molding for increasing plate girder greatly improves, meet construction requirement, and solves the matter of fillet weld
Amount problem, then in oversite concrete plate above, then give full play to that steel tensile strength is high, ductility is good and concrete crushing strength
Material sexual clorminance high, rigidity is big, is highly suitable for science of bridge building field.
The width and thickness of flange plate 1 and flange plate 2 21 of the present invention can be identical, can not also be identical, depending on knot
Depending on structure design requirement.When steel plate girder construction is applied in steel-concrete connecting beam, the compressive property that can use concrete is appropriate
Reduce the width and thickness of top flange plate.
Embodiment 5
A kind of novel processing method for increasing plate girder, comprising the following steps:
Step 1: whole rolled steel plate-girder 0 is obtained by whole roll, at this point, the web and the wing of whole rolled steel plate-girder 0
Without fillet weld between listrium, reduce the weak link of structure stress；
Step 2: the web of the whole rolled steel plate-girder 0 is cut according to cutting line 5, forms the first assembly portion 1
With the second assembly portion 2, while in the third assembly portion 3 of factory process steel plate form.Cutting line 5 can be described in embodiment 1
Linear cutting line, be also possible to the cutting line of broken line type described in embodiment 3, it is preferred that 5 distance of cutting line
The distance of the top flange plate of the entirety rolled steel plate-girder 0 is equal to the cutting line 5 under the whole rolled steel plate-girder 0
The distance of flange plate, i.e. D1=D2, at this point, the size shape in the two assembly portions formed is consistent, convenient for assembled processing.
Step 3: the web 1 in first assembly portion 1 and third assembly portion 3 are subjected to butt welding, by described second
The web 2 22 in assembled portion 2 and third assembly portion 3 carry out butt welding, obtain increasing plate girder.When the cutting line 5 is broken line type
When, can misplace assembly, so that self-assembling formation cavity reduces steel using amount on the basis of meeting Structural strength calls, reduce
Construction cost.
In the case that the deck-molding of whole rolled steel plate-girder 0 is 1.2m, not only may be used using processing method of the present invention
To process the plate girder that deck-molding is greater than 1.2m, it might even be possible to process the plate girder that deck-molding is far longer than 2m.In the present embodiment
In, the cutting line 5 as described according to Figure 10 is cut, and the deck-molding of whole rolled steel plate-girder 0 is 1.2m, third assembly portion steel plate
Height be 0.3m, the D1=D2=0.15m of cutter unit 51, at this point, the deck-molding for the plate girder that assembled welding processing goes out is
2.4m。
Above embodiments are only to illustrate the present invention and not limit the technical scheme described by the invention, although this explanation
The present invention has been described in detail referring to above-mentioned each embodiment for book, but the present invention is not limited to above-mentioned specific implementation
Mode, therefore any couple of present invention modifies or equivalent replacement；And the technical side of all spirit and scope for not departing from invention
Case and its improvement, are intended to be within the scope of the claims of the invention.
Claims (10)
- Novel increase plate girder 1. a kind of, which is characterized in that including the spelling of the first assembly portion (1), the second assembly portion (2) and third Dress portion (3), first assembly portion (1) include the flange plate one (11) and web one (12) of whole roll forming, and described second Assembled portion (2) includes the flange plate two (21) and web two (22) of whole roll forming, and first assembly portion (1) and second are spelled The cross section in dress portion (2) is T shape, and third assembly portion (3) includes steel plate, and the both ends in third assembly portion (3) are distinguished It is connected with the web one (12) and web two (22) by butt weld (4).
- 2. one kind according to claim 1 it is novel increase plate girder, which is characterized in that third assembly portion (3) also Including the ribbed stiffener (31) being equipped on the steel plate.
- 3. one kind according to claim 1 it is novel increase plate girder, which is characterized in that the web one (12), third Several cavitys are additionally provided on assembled portion (3) and web two (22).
- 4. one kind according to claim 3 it is novel increase plate girder, which is characterized in that the cavity is located at the web On one (12) or third assembly portion (3) or web two (22) or the cavity is located at the web one (12), third assembly portion (3) and the join domain of web two (22).
- 5. one kind according to claim 1 to 4 it is novel increase plate girder, which is characterized in that first assembly portion (1) and the second assembly portion (2) is that whole rolled steel plate-girder (0) is cut along cutting line (5).
- 6. one kind according to claim 5 it is novel increase plate girder, which is characterized in that the cutting line (5) be broken line, The cutting line (5) includes several cutter units (51) interconnected, and each cutter unit (51) includes that eminence is cut The connection cutting line of secant (52), lower cutting line (53) and connection the eminence cutting line (52) and lower cutting line (53) (54), the eminence cutting line (52) and lower cutting line (53) are horizontal line, and the eminence cutting line (52) and lower The equal length of cutting line (53)；Or the cutting line (5) is straight line.
- 7. one kind according to claim 6 it is novel increase plate girder, which is characterized in that each connection cutting line It (54) is straight line or curve, the straight line includes vertical line and oblique line.
- Novel increase steel-concrete connecting beam 8. a kind of, which is characterized in that including as claimed in claim 1 a kind of new Type increases plate girder, and in the novel concrete slab (6) for increasing pouring molding on plate girder, the novel increasing Several connectors (7) are connected between high plate girder and the concrete slab (6).
- 9. a kind of novel processing method for increasing plate girder, which is characterized in that processing as claimed in claim 1 one Kind novel increases plate girder, comprising the following steps:Step 1: whole rolled steel plate-girder (0) is obtained by whole roll；Step 2: the web of the whole rolled steel plate-girder (0) is cut according to cutting line (5), forms the first assembly portion (1) and the second assembly portion (2)；Step 3: carrying out butt welding for first assembly portion (1) and third assembly portion (3), by second assembly portion (2) and Third assembly portion (3) carries out butt welding, obtains increasing plate girder.
- 10. the novel processing method for increasing plate girder of one kind according to claim 9, which is characterized in that the cutting The distance of top flange plate of the line (5) apart from the whole rolled steel plate-girder (0) is equal to the cutting line (5) and rolls apart from the entirety The distance of the bottom wing listrium of plate girder (0) processed.
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| CN201910034160.0A CN109518586A (en) | 2019-01-14 | 2019-01-14 | It is a kind of novel to increase plate girder, steel-concrete connecting beam and its processing method |
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| CN201910034160.0A CN109518586A (en) | 2019-01-14 | 2019-01-14 | It is a kind of novel to increase plate girder, steel-concrete connecting beam and its processing method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112900742A (en) * | 2021-01-15 | 2021-06-04 | 西南交通大学 | I-shaped beam |
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