CN107190633A - A kind of connecting structure of steel-concrete combination beam - Google Patents
A kind of connecting structure of steel-concrete combination beam Download PDFInfo
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- CN107190633A CN107190633A CN201710624989.7A CN201710624989A CN107190633A CN 107190633 A CN107190633 A CN 107190633A CN 201710624989 A CN201710624989 A CN 201710624989A CN 107190633 A CN107190633 A CN 107190633A
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- lower flange
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- 239000004567 concrete Substances 0.000 title claims abstract description 43
- 239000003351 stiffener Substances 0.000 claims abstract description 34
- 238000003466 welding Methods 0.000 claims abstract description 13
- 229910000831 Steel Inorganic materials 0.000 claims description 54
- 239000010959 steel Substances 0.000 claims description 54
- 239000002131 composite material Substances 0.000 claims description 19
- 210000002421 cell wall Anatomy 0.000 claims description 15
- 238000005187 foaming Methods 0.000 claims description 13
- 229920006253 high performance fiber Polymers 0.000 claims description 9
- 239000011376 self-consolidating concrete Substances 0.000 claims description 7
- 210000001364 upper extremity Anatomy 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 9
- 238000010586 diagram Methods 0.000 description 9
- 238000009434 installation Methods 0.000 description 3
- 239000006260 foam Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 210000001015 abdomen Anatomy 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 230000010412 perfusion Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000003079 width control Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of 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
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Joining Of Building Structures In Genera (AREA)
- Rod-Shaped Construction Members (AREA)
Abstract
The present invention relates to a kind of connecting structure of steel-concrete combination beam, the combination beam is by top flange, lower flange, web and top plate are connected and composed, wherein top flange be arranged in parallel with lower flange, web is vertically set between top flange and lower flange center line, top plate is arranged on the top of top flange, using welding or bolted mode between beam section, staggered by weld seam, joint area ribbed stiffener is set, special bolt connecting mode realizes that beam section is connected, top flange is processed as down isosceles trapezoid, rectangle, it is circular, or V-type, it is U-shaped, arc groove structure, lower flange is processed as the special constructions such as trapezoidal or rectangle, reduce girder web plate height, improve the rigidity and stability of combination beam, the top flange stretched into inside top plate improves the rigidity of concrete roof, its is rational in infrastructure, simple structure, stress performance is superior, easy construction.
Description
Technical field
The invention belongs to steel-concrete composite beam engineering Application Research technical field, and in particular to steel-concrete combination
The connecting structure of beam.
Background technology
Novel steel-concrete combination beam be by the wing plate steel tube section of steel I-beam in traditional steel-concrete composite beam,
The new composite structure that the structures such as channel-section triangular-section are substituted.Current novel compositions beam to wherein several types
Substantial amounts of research has been done in terms of structure tension performance and design method, but has solved the beam section connection of this kind of combination beam at the scene
Problem, is that can it be applied to an important ring for Practical Project, can directly influence the service life and bearing capacity of beam.It is new
Steel-concrete composite beam bridge is because of its new combining structure form, and its joint connection in site is different from general steel-concrete and combined
Beam, does not find specializing in and designing for this new structure connecting structure also at present.
The content of the invention
It is an object of the invention to provide reasonable in design, simple structure, stress performance be superior and steel of easy construction-
The connecting structure of concrete combination beam.
To achieve these goals, the technical solution adopted in the present invention is：The combination beam be by top flange, lower flange,
Web and top plate are connected and composed, and wherein top flange be arranged in parallel with lower flange, and web is vertically set on top flange and lower flange
Between center line, top plate is arranged on the top of top flange, and the cross section of top flange is down isosceles trapezoid, rectangle, circular either V
Type or U-shaped groove structure；The cross section of the lower flange can be plain plate, isosceles trapezoid, rectangle or circle, top flange, web
Connected or spliced by splice plate by welding manner between the beam section of lower flange, set in the beam section seam both sides of web
There is the adding rib vertical with web, ribbed stiffener in pipe is set when top flange is tubular construction.
Spliced between the beam section of above-mentioned top flange, web and lower flange by splice plate, the seam of top flange and web, under
The seam on the edge of a wing is that on same longitudinal cross-section, the two ends of splice plate are fastened by being distributed in the bolt of seam both sides.
Connected between the beam section of above-mentioned top flange, web and lower flange by welding manner, top flange, web and lower flange
Between the attachment weld 200~500mm that mutually staggers be preferred.
Above-mentioned top flange or/and lower flange are hollow tubular structures, are provided with the seam both sides of its blank pipe inner chamber beam section
Interior ribbed stiffener, interior ribbed stiffener is with adding rib on same longitudinal cross-section.
In linkage section between interior ribbed stiffener filled with self-compacting concrete or very-high performance fiber concrete (referred to as
UHPFRC) or foaming steel.
Reinforced hole is machined with interior ribbed stiffener, linkage section is connected by dowel through reinforced hole with beam section.
The cross section of above-mentioned top flange is down isosceles trapezoidal structure, and its base angle is 45 °~60 ° and is preferred.
The cross section of above-mentioned top flange is arc groove structure, preferably 150 °~210 ° of its central angle, or top flange
Cross section is V-type groove structure, preferably 60 °~120 ° of its cell wall angle, or the cross section of the top flange is U-shaped groove knot
Structure, its width of rebate is not less than the width of bottom land；The cell wall of top flange is extended in top plate, and extended height is top flange total height
1/3~1/2 be preferred.
The cross section of above-mentioned lower flange is isosceles trapezoidal structure, and its base angle is 45 °~60 ° and is preferred.
The connecting structure of the steel-concrete composite beam of the present invention, is, using welding or bolted mode, to pass through weldering
Seam is staggered, sets joint area ribbed stiffener, being realized that beam section is connected using special bolt connecting mode；In addition by by top flange
It is processed as down isosceles trapezoid, rectangle, circle or is V-type or U-shaped groove structure, lower flange is processed as the spies such as trapezoidal or rectangle
Different structure, instead of the steel flat board top flange of traditional I-shaped combination beam, reduces girder web plate height, improves combination beam
Rigidity and stability, the top flange stretched into inside top plate improve the rigidity of concrete roof；In addition the present invention can also be upper and lower
Filling-foam steel or very-high performance fiber concrete in the edge of a wing, make foaming steel or very-high performance fiber concrete and top flange steel plate
Overall structure stress is formed, top flange is connected with top plate by shear connector, it is ensured that top flange and concrete roof
Integral working, uses the combined use of new construction and new material, it is ensured that the connection reliability of joint area, and the present invention is fully
Using new material performance, the structural strength of steel-concrete pipe flange combining beam is greatly strengthen, increases its bearing capacity, extends beam
Service life, moreover, rational in infrastructure, simple structure, stress performance are superior, easy construction.
Brief description of the drawings
Fig. 1 is the combination beam attachment structure schematic diagram of embodiment 1.
Fig. 2 is Fig. 1 A-A sectional views.
Fig. 3 is the combination beam attachment structure schematic diagram of embodiment 2.
Fig. 4 is Fig. 3 B-B sectional views.
Fig. 5 is the combination beam attachment structure schematic diagram of embodiment 3.
Fig. 6 is Fig. 5 C-C sectional views.
Fig. 7 is the combination beam attachment structure schematic diagram of embodiment 4.
Fig. 8 is Fig. 7 D-D sectional views.
Fig. 9 is the combination beam attachment structure schematic diagram of embodiment 5.
Figure 10 is Fig. 9 E-E sectional views.
Figure 11 is the combination beam attachment structure schematic diagram of embodiment 6.
Figure 12 is Figure 11 G-G sectional views.
Figure 13 is the combination beam attachment structure schematic diagram of embodiment 7.
Figure 14 is Figure 13 H-H sectional views.
Figure 15 is the structural representation of the combination beam of embodiment 8.
Figure 16 is that the section of top flange 2 in embodiment 9 is the combined beam structure schematic diagram of U-shaped groove.
Figure 17 is that the section of top flange 2 in embodiment 10 is the combined beam structure schematic diagram of V-type groove.
Embodiment
Technical scheme is further described in conjunction with embodiment and accompanying drawing, but the present invention is not limited only to
Following implementation situations.
Embodiment 1
Understood with reference to Fig. 1 and 2, the connecting structure of the steel-concrete composite beam of the present embodiment be by top plate 1, top flange 2,
Web 3, lower flange 4, foaming steel or very-high performance fiber concrete 5, interior ribbed stiffener 6, adding rib 7 and reinforcing bar 8 are constituted.
The lower flange 4 of the present embodiment is welded with the T-shaped connection of web 3, the i.e. lower end of web 3 with lower flange 4, and lower flange is
A width of 500mm, thickness is 36mm steel plate, and the height of web 3 is 764mm, and thickness is 16mm, web 3 it is relative with lower flange 4 one
End has been welded to connect top flange 2, and the top flange 2 of the present embodiment is the rectangle blank pipe edge of a wing, its wide 400mm, high 200mm, thick 12mm,
Fixed between the beam section of top flange 2, web 3 and lower flange 4 using welding manner, and the beam section weld seam and abdomen of top flange 2
The beam section weld seam of plate 3 and the beam section weld seam of lower flange 4 mutually stagger, and spacing is 400mm, it is ensured that weld seam is not in same section
On, and the welding hole excessively of the web open semicircle shape in crossover sites, in the weld seam 500mm of the lateral extent web 3 of weld seam two beam section
Be provided with interior ribbed stiffener 6 and adding rib 7 in welding region, adding rib 7 is welded on the middle part of web 3, and with lower flange 4,
Web 3 is vertical, and interior ribbed stiffener 6 is welded in the blank pipe of top flange 2, with adding rib 7 on same longitudinal cross-section, for improving
The rigidity of structure of combination beam linkage section, linkage section is formed between the interior ribbed stiffener 6 of the two ends soldered both sides of top flange 2, and
Correspondence is in the common self-compacting concrete of empty intra-bladder instillation in the interior outside of ribbed stiffener 6, the filling-foam steel 5 in linkage section, it is ensured that beam
The reliability of section connection and can application property, 8 reinforced holes are made a call on interior ribbed stiffener 6, aperture is 20mm, the interspersed Ribbed Bars of φ 16
As dowel 8, the length 500mm of dowel 8 connects beam section by dowel 8 to be formed after the filling concrete in beam section
Overall structure.
Embodiment 2
Understood with reference to Fig. 3 and 4, the connecting structure of the steel-concrete composite beam of the present embodiment be by top plate 1, top flange 2,
Web 3, lower flange 4, foaming steel 5, interior ribbed stiffener 6, adding rib 7 and reinforcing bar 8 are constituted.
The lower flange 4 of the present embodiment is welded with the T-shaped connection of web 3, the i.e. lower end of web 3 with lower flange 4, and lower flange is
A width of 500mm, thickness is 36mm steel plate, and the height of web 3 is 764mm, and thickness is 16mm, web 3 it is relative with lower flange 4 one
End has been welded to connect top flange 2, and the top flange 2 of the present embodiment is circular hollow tubular structure, its a diameter of 600mm, and wall thickness is 8mm.
Fixed between the beam section of the top flange 2 of the present embodiment, web 3 and lower flange 4 using welding manner, and the beam of top flange 2
Section weld seam mutually staggers with the beam section weld seam of web 3 and the beam section weld seam of lower flange 4, and spacing is 200mm, be can also be
500mm, i.e. top flange 2 beam section weld seam and the beam section weld seam of web 3 and the beam section weld seam of lower flange 4 stagger spacing can be
Adjusted between 200mm~500mm, and butt weld between beam section web and the pipe edge of a wing or web with lower flange commissure not
Energy cross occurrence cross weld seam, should cross welding hole in the web open semicircle shape of crossover sites.In the weld seam of the lateral extent web 3 of weld seam two
Interior ribbed stiffener 6 and adding rib 7 are provided with 400mm beam section welding region, adding rib 7 is welded on the middle part of web 3, and
Vertical with lower flange 4, web 3, interior ribbed stiffener 6 is welded in the blank pipe of top flange 2, with adding rib 7 in same longitudinal cross-section
On, for improving the rigidity of structure of linkage section, connection is formed between the interior ribbed stiffener 6 of the two ends soldered both sides of top flange 2
Section, and correspondence is filled with foaming steel 5 in the common self-compacting concrete of empty intra-bladder instillation in the interior outside of ribbed stiffener 6 in linkage section,
Ensure beam section connection reliability and can application property, 8 reinforced holes are made a call on interior ribbed stiffener 6, aperture is 20mm, the interspersed bands of φ 16
Rib reinforcement is used as dowel 8, the length 400mm of dowel 8.
Other parts and annexation are same as Example 1.
Embodiment 3
Understand that the connecting structure of the steel-concrete composite beam of the present embodiment is by top plate 1, top flange 2, web with reference to Fig. 5
3rd, lower flange 4, interior ribbed stiffener 6, adding rib 7 and splice plate 9 are constituted.
The lower flange 4, web 3 and top flange 2 of the present embodiment pass through splice plate and bolt according to the structure of i-shaped beamses
Splicing is integrated, the upper surface weld stud in top flange 2, and peg is stretched into the concrete roof 1 at the top of top flange 2, so that
Form steel-concrete composite beam.Specifically top flange 2 is parallel with lower flange 4, and web 3 is vertically mounted on the upper surface of lower flange 4
On the center line of length direction, and the top of web 3 is welded as a whole with the lower surface length direction center line of top flange 2, by
In being segmented installation in work progress, girder is that sectionally smooth join is formed, and lower flange 4, web 3, the seam of top flange 2
Alignd on same section, splice plate 9 is overlapped with seam, and splice plate 9 is fastened with bolt, is specially：
Referring to Fig. 6, the lower flange 4 of the present embodiment is a width of 500mm, and thickness is 36mm rectangular steel plates or so successively splicing
Into the left and right sides of seam is machined with screw on lower flange 4, and is provided with the first splice plate 9-1, upper table on the lower surface
The left and right sides of web 3 in face is respectively mounted the second splice plate 9-2 and the 3rd splice plate 9-3, the first splice plate 9-1 long 810mm,
On the downside of wide 500mm, thick 26mm, the seam for being overlapped on lower flange 5, the second splice plate 9-2 and the 3rd splice plate 9-3 is overlapped on side by side
On the upside of the seam of lower flange 4, specification be the splice plate 9-1 of long 810mm, wide 225mm, thick 30mm, first and the second splice plate 9-2,
3rd splice plate 9-3 is fastenedly connected by the bolt through the screw of lower flange 4 respectively.
Upper surface position of center line alongst in lower flange 4 is welded with a height of 764mm, and thickness is 16mm's
Web 3, the seam of web 3 is alignd with the seam of lower flange 4, and left splice plate 9-4 and the right side are separately installed with the left and right sides of web 3
Splice plate 9-5, left splice plate 9-4 and right splice plate 9-5 are symmetrically overlapped in the seam of web 3 on web 3, physical dimension phase
Together, it is long 660mm, high 600mm, thick 18mm, left splice plate 9-4 and right splice plate 9-5 is with through web 3 and being distributed in web
The bolt of 3 seam both sides is fastenedly connected.
It is rectangular steel pipe in the top flange 2 at the top of web 3, the seam of top flange 2 and the seam of web 3 and lower flange 4
Seam is alignd, and for the ease of construction and installation, the rectangular steel pipe side wall seam crossing in top flange 2 is machined with to be extended to left and right respectively
Hand hole, hand hole be a length of 455mm, a height of 100mm, end arc radius be 50mm slotted eye, in rectangular steel pipe bottom plate
Surface is provided with the 6th splice plate 9-8, outer surface and is provided with the 4th splice plate 9-6 and the 5th splice plate 9-7, the 4th splice plate 9-
6 and the 5th splice plate 9-7 be symmetrically installed on the plate outer surface of rectangular steel pipe on web 3, the 6th splice plate 9-8, the 4th
Splice plate 9-6 and the 5th splice plate 9-7 is overlapped in the seam of rectangular steel pipe, and the 4th splice plate 9-6, the 5th spelling
Fishplate bar 9-7 is fastenedly connected with the 6th splice plate 9-8 with the bolt through rectangular steel pipe bottom plate respectively, and the rectangular steel pipe of splicing is connected
It is connected in one.The 7th splice plate 9-9 and the 8th splice plate 9-10, the 7th are respectively mounted in the inner and outer surfaces of top plate 1 of rectangular steel pipe
Splice plate 9-9, the 8th splice plate 9-10 are also to be overlapped in the seam of rectangular steel pipe, and the bolt being distributed by seam both sides is fastened
Connection.4th splice plate 3-6, the 5th splice plate 9-7 are identical with the 8th splice plate 9-10 thickness, the 4th splice plate 9-6, the 5th
Splice plate 9-7 specification is identical, and its a length of 810mm, a width of 175mm, thickness are 10mm, and the 8th splice plate 9-10 is a length of
810mm, thickness is 10mm, a width of 400mm, the 6th splice plate 9-8 and the 7th a length of 810mm of splice plate 9-9, and thickness is 10mm,
A width of 380mm.To facilitate installation, the splicing that hand hole completes rectangular steel pipe is first passed through, last repair welding hand hole.The of the present embodiment
One splice plate 9-1, the second splice plate 9-2, the 3rd splice plate 9-3, left splice plate 9-4, right splice plate 9-5 and the 4th splice plate
9-6, the 5th splice plate 9-7, the 6th splice plate 9-8, the 7th splice plate 9-9 and the 8th splice plate 9-10 constitute the present embodiment
Splice plate group 9.
In order to ensure the rigidity of structure of combination beam linkage section, set respectively in the both sides of the join domain inseam of above-mentioned beam section
Interior ribbed stiffener 6 and adding rib 7 are equipped with, adding rib 7 is welded on the middle part of web 3, and vertical with lower flange 4, web 3, interior
Ribbed stiffener 6 is welded in the blank pipe of top flange 2, and with adding rib 7 on same longitudinal cross-section.
In practical application of bridge, the girder steel connection in embodiment is completed first, then cast-in-site concrete roof plate 1, completes bridge floor
Real bridge is formed after system's construction.
Embodiment 4
The top plate 1 of the present embodiment, top flange 2, web 3, interior ribbed stiffener 6, adding rib 7 and splice plate 9 structure it is equal
Same as Example 3, lower flange 4, web 3, the seam of top flange 2 are alignd on same section, and spelling is overlapped with seam
Fishplate bar 9, and splice plate 9 fastens with bolt.
The lower flange 4 of the present embodiment is that rectangular steel pipe is spliced, referring to Fig. 7 and Fig. 8, its specific structure and top flange
2 is identical, i.e. lower flange 4 and top flange 2 is symmetrical on the center line of web 3, and the two of the beam section join domain inseam of lower flange 4
Side is also welded with interior ribbed stiffener 6, interior ribbed stiffener 6 and with adding rib 7 on same longitudinal cross-section, i.e., the structure of lower flange 4 with
The structure of top flange 2 is symmetrical on web center line.The lower flange 4 of the present embodiment side wall seam crossing be machined with respectively to the left,
The hand hole of right extension, is provided with the tenth splice plate 9-12, outer surface in the inner surface of the rectangular steel pipe top plate 1 of lower flange 4 and installs
There is the rectangle steel of the second splice plate 9-2 and the 3rd splice plate 9-3, the second splice plate 9-2 and the 3rd splice plate 9-3 in lower flange 4
Tube top plate 1 is symmetrically installed on outer surface on web 3, the tenth splice plate 9-12, the second splice plate 9-2 and the 3rd splice plate 9-
3 are overlapped in the seam of rectangular steel pipe, and the second splice plate 9-2, the 3rd splice plate 9-3 respectively with the tenth splice plate 9-
12 are fastenedly connected with the bolt through rectangular steel pipe top plate 1.In lower flange 4, the bottom plate inner and outer surfaces of rectangular steel pipe are respectively mounted
9th splice plate 9-11 and the first splice plate 9-1, the 9th splice plate 9-11, the first splice plate 9-1 are also to be overlapped on rectangular steel pipe
Seam on, the bolt being distributed by seam both sides is fastenedly connected.
Other parts and its annexation are same as Example 3.
Embodiment 5
The seam of top flange 2, the seam of web 3 and the alignment of the seam of lower flange 4 of the present embodiment, i.e., in same section
On, splice plate 9 is overlapped with seam, and splice plate 9 is fastened with bolt.
The top flange 2 of the present embodiment is rectangular steel pipe, in the linkage section between the interior ribbed stiffener 6 of its beam section join domain
Chamber fills in and issues blist steel or very-high performance fiber concrete 5, and in top flange 2, the outer surface relative with top plate 1, which is provided with, is overlapped on seam
On the 8th splice plate 9-10, the 4th splice plate 9-6 being overlapped in seam and is installed on rectangular steel pipe plate outer surface
Five splice plate 9-7, the 4th splice plate 9-6 and the 5th splice plate 9-7 are symmetrically installed respectively about web 3, and the 4th splice plate 9-6
With the 8th splice plate 9-10, the 5th splice plate 9-7 and the 8th splice plate 9-10 it is directly connected to the bolt through foaming steel 5
It is fixed, without processing hand hole on rectangular steel pipe, referring to Fig. 9 and 10.
Other parts are identical with embodiment 3 or 4.
Embodiment 6
The seam of top flange 2, the seam of web 3 and the alignment of the seam of lower flange 4 of the present embodiment, i.e., in same section
On, splice plate 9 is overlapped with seam, and splice plate 9 is fastened with bolt.
The top flange 2 of the present embodiment is the section steel pipe of falling isosceles trapezoid, and steel pipe top width 500mm, bottom width 300mm are highly
200mm, its base angle is 45 °, can also adjust height or width control system base angle is arbitrarily selected between 45 °~60 °, it is ensured that its
Structural strength.Blist steel 5 is filled in and issued in linkage section inner chamber between the interior ribbed stiffener 6 of the beam section join domain of top flange 2, in upper limb
The outer surface relative with top plate 1 of edge 2 is provided with the 8th splice plate 9-10 being overlapped in seam, on rectangular steel pipe plate outer surface
The 4th splice plate 9-6 and the 5th splice plate 9-7 being overlapped in seam, the 4th splice plate 9-6 and the 5th splice plate 9-7 are installed
It is symmetrically installed respectively about web 3, and the 4th splice plate 9-6 and the 8th splice plate 9-10, the 5th splice plate 9-7 and the 8th splicing
Plate 9-10 is to be directly connected to fix with the bolt through foaming steel 5, without processing hand hole on rectangular steel pipe, referring to Figure 11 and
12。
Other parts and its annexation are same as Example 3.
Embodiment 7
The seam of top flange 2, the seam of web 3 and the alignment of the seam of lower flange 4 of the present embodiment, i.e., in same section
On, splice plate 9 is overlapped with seam, and splice plate 9 is fastened with bolt.
The section of the present embodiment top flange 2 is U-shaped groove, the wide 300mm of its bottom land, and slot opening 500mm, groove depth is 400mm,
Both sides cell wall in top flange 2 is extended in top plate 1, and the height extended in top plate 1 is the 1/2 of the total height of top flange 2,
Concrete perfusion connects as one structure with top plate 1 in the groove of top flange 2, and surfaces externally and internally is distinguished on the bottom land of top flange 2
The 6th splice plate 9-8 and the 4th splice plate 9-6 and the 5th splice plate 9-7 being overlapped in seam, the 4th splice plate 9-6 are installed
It is located at the both sides of seam with the 5th splice plate 9-7 and is symmetrically installed on web 3, the 6th splice plate 9-8 and the 4th splice plate 9-
6th, the 5th splice plate 9-7, by the bolt connection of the bottom land of top flange 2, is also by interior on the both sides cell wall of top flange 2 similarly
The 11st splice plate 9-13, the 12nd splice plate 9-14 and the 7th splice plate 9-9, the 8th splice plate 9-10 that outer surface is set
Reinforce, its surfaces externally and internally is bolted, referring to Figure 13 and 14.
Other parts and annexation are same as Example 3.
Embodiment 8
In the present embodiment, top flange 2 is V-type channel section, a length of 400mm of its cell wall, and the angle between cell wall is 90 °,
The top of cell wall is extended in top plate 1, and longitudinal height of extension is the 1/3 of the total height of top flange 2, as shown in figure 15.
Other parts and annexation are same as Example 3.
Embodiment 9
In the present embodiment, top flange 2 is V-type channel section, referring to Figure 16, a length of 400mm of its cell wall, the folder between cell wall
Angle is 60 °, and the top of cell wall is extended in top plate 1, and longitudinal height of extension is the 1/3 of the total height of top flange 2.U-type groove is sky
Core structure, is inside filled in and issued after blist steel 5, bolt-through two-layered steel plates and foaming steel or concrete, is connected using splice plate.
Other parts and annexation are same as Example 3.
Embodiment 10
In the present embodiment, top flange 2 is V-type channel section, referring to Figure 17, a length of 400mm of its cell wall, the folder between cell wall
Angle is 120 °, and the top of cell wall is extended in top plate 1, and longitudinal height of extension is the 1/3 of the total height of top flange 2.V-groove is sky
Core structure, inside fills in and issues blist steel 5.After bolt-through two-layered steel plates and foaming steel or concrete, connected using splice plate.
Other parts and annexation are same as Example 3.
Embodiment 11
In above-described embodiment 1~10, lower flange 4 is isosceles trapezoidal structure, and its top width is 300mm, and bottom width is 500mm, high
Degree is 200mm, and base angle is 45 °.
Other parts and its annexation are identical with corresponding embodiment.
Embodiment 12
In above-described embodiment 1~10, lower flange 4 is isosceles trapezoidal structure, and its top width is 300mm, and bottom width is 500mm, high
Degree is 173.2mm, and base angle is 60 °, and the size at base angle can also arbitrarily be adjusted according to practical application between 45 °~60 °, it is ensured that
Its overall construction intensity.
Other parts and its annexation are identical with corresponding embodiment.
Embodiment 13
In above-described embodiment 1~10, lower flange 4 is rectangular configuration, its wide 400mm, high 200mm.
Other parts and its annexation are identical with corresponding embodiment.
Embodiment 14
In above-described embodiment 1~13, the foaming steel 5 of each beam section connection place filling of top flange 2 can be mixed with self-compaction
Coagulate soil or very-high performance fiber concrete (abbreviation UHPFRC) to replace, the self-compacting concrete or very-high performance fiber filled
The function and performance of concrete and foaming steel 5 are close, ensure that beam section connection reliability and can application property.
Other parts and its structure are identical with corresponding embodiment.
Embodiment 15
In above-described embodiment 8~14, lower flange 4 is hollow-core construction, and the internal structure of its structure and top flange 2 is on web
Central Symmetry, i.e., be welded with interior ribbed stiffener 6, seam both sides in the seam both sides of the blank pipe inner chamber beam section of lower flange 4 and put more energy into
Filled with foaming steel 5 or self-compacting concrete or very-high performance fiber concrete (abbreviation UHPFRC) between rib 6, according to reality
Situation is selected, the common self-compacting concrete of empty intra-bladder instillation in the interior outside of ribbed stiffener 6, passes through the connection through interior ribbed stiffener 6
Muscle 8 will be connected as overall structure between beam section, and reinforce its structural strength.
Other parts and annexation are identical with correspondence embodiment.
The connected mode of above-described embodiment is not described in detail, and it belongs to routine techniques.
Technical scheme is not limited only to the above embodiments, can also be under the enlightenment of above-described embodiment, by skill
Art feature is combined, and belongs to the design of the present invention.
Claims (9)
1. a kind of connecting structure of steel-concrete composite beam, the combination beam be by top flange (2), lower flange (4), web (3) with
And top plate (1) is connected and composed, wherein top flange (2) be arranged in parallel with lower flange (4), and web (3) is vertically set on top flange (2)
Between lower flange (4) center line, top plate (1) is arranged on the top of top flange (2), it is characterised in that：The top flange (2)
Cross section is down isosceles trapezoid, rectangle, circular either V-type or U-shaped groove structure；The cross section of the lower flange (4) is
Waist is trapezoidal or rectangle, is spelled between the beam section of top flange (2), web (3) and lower flange (4) by welding manner connection or pass through
Fishplate bar (9) splices, and the adding rib (7) vertical with web (3) is provided with the beam section seam both sides of web (3).
2. the connecting structure of steel-concrete composite beam according to claim 1, it is characterised in that：The top flange (2),
Spliced between the beam section of web (3) and lower flange (4) by splice plate (9), seam and web (3), the lower flange of top flange (2)
(4) seam is that on same longitudinal cross-section, the two ends of splice plate are fastened by being distributed in the bolt of seam both sides.
3. the connecting structure of steel-concrete composite beam according to claim 1, it is characterised in that：The top flange (2),
Connected between the beam section of web (3) and lower flange (4) by welding manner, the connection weldering between top flange, web and lower flange
Stitch the 200~500mm that mutually staggers.
4. the connecting structure of the steel-concrete composite beam according to claim 1 or 2 or 3, it is characterised in that：The upper limb
Edge (2) is hollow tubular structures with lower flange (4), and the seam both sides of its blank pipe inner chamber beam section are provided with interior ribbed stiffener (6),
Interior ribbed stiffener (6) is with adding rib (7) on same longitudinal cross-section.
5. the connecting structure of steel-concrete composite beam according to claim 4, it is characterised in that：Interior ribbed stiffener (6) it
Between linkage section in filled with self-compacting concrete or very-high performance fiber concrete or foaming steel (5).
6. the connecting structure of steel-concrete composite beam according to claim 5, it is characterised in that：On interior ribbed stiffener (6)
Reinforced hole is machined with, dowel (8) will be connected through reinforced hole beam section.
7. the connecting structure of the steel-concrete composite beam according to claim 5 or 6, it is characterised in that：The top flange
(2) cross section is down isosceles trapezoidal structure, and its base angle is 45 °~60 °.
8. the connecting structure of the steel-concrete composite beam according to claim 5 or 6, it is characterised in that：The top flange
(2) cross section is V-type groove structure, and its cell wall angle is 60 °~120 °, or the cross section of the top flange (2) is U-shaped
Groove structure, its width of rebate is not less than the width of bottom land；The cell wall of top flange (2) is extended in top plate (1), and extended height is
The 1/3~1/2 of top flange (2) total height.
9. the connecting structure of steel-concrete composite beam according to claim 4, it is characterised in that：The lower flange (4)
Cross section is isosceles trapezoidal structure, and its base angle is 45 °~60 °.
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| CN201710624989.7A CN107190633A (en) | 2017-07-27 | 2017-07-27 | A kind of connecting structure of steel-concrete combination beam |
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| CN201710624989.7A CN107190633A (en) | 2017-07-27 | 2017-07-27 | A kind of connecting structure of steel-concrete combination beam |
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