CN103422611B - The continuous I-beam of Wavelike steel webplate steel construction - Google Patents
The continuous I-beam of Wavelike steel webplate steel construction Download PDFInfo
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- CN103422611B CN103422611B CN201310308435.8A CN201310308435A CN103422611B CN 103422611 B CN103422611 B CN 103422611B CN 201310308435 A CN201310308435 A CN 201310308435A CN 103422611 B CN103422611 B CN 103422611B
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Abstract
The present invention relates to I-beam, particularly relate to a kind of continuous I-beam of Wavelike steel webplate steel construction, beam body includes one piece of Wavelike steel webplate, top flange steel plate, lower flange steel plate, described Wavelike steel webplate (2) is arranged between top flange steel plate (1) and lower flange steel plate (3), top flange steel plate (1) and Wavelike steel webplate (2) are by being welded to connect, Wavelike steel webplate (2) and lower flange steel plate (3) are by being welded to connect, by connecting one or more the combination connection in end or steel strand cable (5) between single girder construction, form beam structure.The intensity of the cross section rigidity of beam body of the present invention and connection end is high, the waveform of web consists of straightway, changeover portion, arc section three part, wherein changeover portion can effectively connect straightway and arc section, solve the problem that when straightway is directly connected to, stress is concentrated with arc section, improve the overall construction intensity of continuous I-beam, extend the service life of I-beam.
Description
Technical field
The present invention relates to I-beam, particularly relate to a kind of continuous I-beam of Wavelike steel webplate steel construction.
Background technology
At present, traditional I-beam or steel box-girder are according to the requirement of shearing resistance flexing, and the ratio of height to thickness of web typically exists
About 100:1, trapezoidal waveform steel web is due to extremely strong shearing resistance and anti-flexural property, and its ratio of height to thickness is up to 300:
1 and more than.In existing Wavelike steel webplate I-beam use Wavelike steel webplate, the waveform of its web be all by
Straightway forms with arc section, easily produces stress in the coupling part of straightway Yu arc section and concentrates.
Summary of the invention
The present invention is directed to I-beam shear behavior in prior art poor, total easily produces stress and concentrates,
Affect the shortcoming such as life-span of structure, it is provided that the cross section rigidity of a kind of beam body and to connect the intensity of end high, abdomen
The waveform of plate consists of straightway, changeover portion, arc section three part, and wherein changeover portion can effectively connect
Connect straightway and arc section, solve the waveform steel of the problem that stress is concentrated when straightway is directly connected to arc section
Web steel construction simply supported l beam.
In order to solve above-mentioned technical problem, the present invention is addressed by following technical proposals:
The continuous I-beam of Wavelike steel webplate steel construction, beam body include one piece of Wavelike steel webplate, top flange steel plate,
Lower flange steel plate, described Wavelike steel webplate is arranged between top flange steel plate and lower flange steel plate, top flange
Steel plate and Wavelike steel webplate are by being welded to connect, and Wavelike steel webplate and lower flange steel plate are by being welded to connect, single
By connecting one or more the combination connection in end or steel strand cable, the company of being formed between individual girder construction
Continuous girder construction.
As preferably, described top flange steel plate, lower flange steel surface roughness are 70-350 μm.High thick
Rugosity can substantially increase the adhesive force of coating.
As preferably, described Wavelike steel webplate is the continuous ladder twists and turns steel plate of band changeover portion and circular arc-shaped corner,
Changeover portion is between straightway and circular arc-shaped corner, and circular arc-shaped corner radius is r, and the radius of changeover portion is R, R
For gradual change radius, R is ∞ r.Changeover portion is connected with straightway one end, radius be R be to tend to infinity；
Changeover portion is connected with circular arc-shaped corner one end, radius be R be to tend to, equal to r, therefore, straightway turn to circular arc
Angle, the radius R of changeover portion is for be gradually decrease to equal to r from infinity, so that straightway and circular arc-shaped corner
More smooth transition, reduces stress and concentrates.The waveform of web passes through straightway, changeover portion, arc section three
Being grouped into, wherein changeover portion can effectively connect straightway and circular arc-shaped corner, solves straightway and arc section
The problem that when being directly connected to, stress is concentrated, is suitable for industrial mass manufacture, mould and manufacturing cost relatively low.
As preferably, described Wavelike steel webplate is L along the point of contact wire length in wave height directionAB, along wavelength side
To point of contact wire length be LBC, LAB≥LBC.Wavelike steel webplate is along the point of contact wire length etc. in wave height direction
In or slightly larger than along the point of contact wire length of wavelength direction, i.e. LAB≥LBCDesign make the shearing resistance of corrugated sheet steel
Intensity and steel using amount reach good cost performance, if wavelength direction is long, i.e. and LBC≥LABThen shear behavior
Substantially reduce, and wavelength direction is too short, then steel using amount significantly increases.Therefore, L is usedAB≥LBCDesign,
Shearing strength can either ensured, rolled steel dosage can reduced again as far as possible.
As preferably, the described end that connects includes that one end of beam body is provided with plug, and the other end is provided with jack, phase
It is connected with jack by plug between adjacent beam body.
As preferably, described plug is provided with barb, and jack is concave.
As preferably, described plug is cylinder, and jack is the hollow cannula coordinated with plug.I-beam
One end is provided with plug, and the other end is provided with jack, is connected with jack by plug between adjacent I-beam.
Coordinated with jack by plug, form continuous print structure, under can effectively prevent from overloading car and big load action or
Beam body under geological process drops phenomenon.
As preferably, the thickness of described top flange steel plate is more than or less than the thickness of lower flange steel plate.Because being subject to
Nip need to consider flexing, and tensile region then need not consider flexing, thus traditional tensile region and compressive region use steel
Amount or area of section are identical, make tensile region part there is function and have more than needed phenomenon, are not science and uneconomic,
Compressive region steel using amount suitably increases, and the beneficially pressurized of component, the function of tension part gives full play to, and reaches
Higher cost performance.When the thickness of top flange steel plate is more than the thickness of lower flange steel plate, it is common I-beam,
Top flange steel plate bears pressure；When the thickness of top flange steel plate is less than the thickness of lower flange steel plate, it is cantilever
Beam, lower flange steel plate bears pressure.
As preferably, described top flange steel plate, lower flange steel plate are arch along Wavelike steel webplate wavelength direction
Shape.Top flange steel plate, lower flange steel plate are arch, beneficially member stress, offset structure in the case of carrying
Part downwarp, improves the overall construction intensity of I-beam.
As preferably, described connection end is high-strength bolt, weldment.
This patent Wavelike steel webplate, the biography in height can replaced each other more than or equal to same area identical function
Uniting the height of web of straight web plate steel box girder and combinative structure, on thickness, little same area identical function can be mutual
The straight web plate steel box girder of tradition for replacing and the thickness of the web of combinative structure.The increase of Wavelike steel webplate deck-molding,
Although adding the consumption of Wavelike steel webplate, but relatively thin Wavelike steel webplate usage amount itself increase micro-its
Micro-, but deck-molding increases the radius of gyration and the bending resistance greatly facilitating upper and lower flange plate or roof and floor, favorably
In the rigidity and the stability that improve component.
Due to the fact that and have employed above technical scheme that there is significant technique effect: the horizontal stroke of beam body of the present invention
The intensity of section rigidity and connection end is high, and the waveform of web passes through straightway, changeover portion, arc section three part
Composition, wherein changeover portion can effectively connect straightway and arc section, solves straightway direct with arc section
The problem that during connection, stress is concentrated, improves the overall construction intensity of continuous I-beam, extends I-beam
Service life.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention 1.
Fig. 2 is the middle waveform steel web structure schematic diagram of Fig. 1.
Fig. 3 is the I portion enlarged drawing of Fig. 2.
Fig. 4 is the left view of Fig. 1.
Fig. 5 is the connection diagram between adjacent continuous beam.
Fig. 6 is II portion enlarged drawing in Fig. 5.
Fig. 7 is III portion enlarged drawing in Fig. 5.
The toponym that in upper accompanying drawing, each number designation is referred to is as follows: wherein 1 top flange steel plate, 2
Wavelike steel webplate, 3 lower flange steel plates, 5 steel strand cables, 21 circular arc-shaped corners, 22 changeover portions, 23
Straightway, 24 plugs, 25 jacks.
Detailed description of the invention
The present invention is described in further detail by 1 to Fig. 7 with embodiment below in conjunction with the accompanying drawings:
Embodiment 1
The continuous I-beam of Wavelike steel webplate steel construction, as shown in Figures 1 to 6, beam body includes one block of waveform steel
Web 2, top flange steel plate 1, lower flange steel plate 3, described Wavelike steel webplate 2 is arranged on top flange steel plate
Between 1 and lower flange steel plate 3, top flange steel plate 1 and Wavelike steel webplate 2 pass through to be welded to connect, waveform steel abdomen
Plate 2 and lower flange steel plate 3 are by being welded to connect, by connecting end or steel strand cable 5 between single girder construction
In one or more combination connect, formed beam structure.
Top flange steel plate 1, lower flange steel plate 3 surface roughness are 70-350 μm.High roughness can substantially increase
Add the adhesive force of coating.
Wavelike steel webplate 2 is the continuous ladder twists and turns steel plate of band changeover portion 22 and circular arc-shaped corner 21, changeover portion
22 between straightway 23 and circular arc-shaped corner 21, and circular arc-shaped corner 21 radius is r, the radius of changeover portion 22
Being gradual change radius for R, R, R is ∞ r.Changeover portion 22 is connected with straightway 23 one end, and radius is R
For tending to infinity；Changeover portion 22 is connected with circular arc-shaped corner 21 one end, radius be R be to tend to equal to r, because of
This, by straightway 23 to circular arc-shaped corner 21, the radius R of changeover portion 22 is for be gradually decrease to from infinity
In r, so that straightway 23 and circular arc-shaped corner 21 more smooth transition, reduce stress and concentrate.Web
Waveform consists of straightway, changeover portion, arc section three part, and wherein changeover portion can effectively connect directly
Line segment and circular arc-shaped corner, solve the problem that when straightway is directly connected to arc section, stress is concentrated, be suitable for work
Industry batch micro operations, mould and manufacturing cost are relatively low.
Wavelike steel webplate 2 is L along the point of contact wire length in wave height directionAB, long along the point of contact line of wavelength direction
Degree is LBC, LAB≥LBC.Wavelike steel webplate 2 is equal or slightly larger than edge along the point of contact wire length in wave height direction
The point of contact wire length of wavelength direction, i.e. LAB≥LBCDesign make shearing strength and the steel using amount of corrugated sheet steel
Reach good cost performance, if wavelength direction is long, i.e. LBC≥LABThen shear behavior substantially reduces, and
Wavelength direction is too short, then steel using amount significantly increases.Therefore, L is usedAB≥LBCDesign, can either protect
Card shearing strength, can reduce again rolled steel dosage as far as possible.
Connecting end and include that one end of beam body is provided with plug 24, the other end is provided with jack 25, logical between adjacent beam body
Cross plug 24 to be connected with jack 25.
Plug 24 is provided with barb, and jack 25 is concave.
Plug 24 is cylinder, and jack 25 is the hollow cannula coordinated with plug 24.One end of I-beam is provided with
Plug 24, the other end is provided with jack 25, is connected with jack 25 by plug 24 between adjacent I-beam.
Coordinated with jack 25 by plug 24, form continuous print structure, can effectively prevent overload car and big load work
Drop phenomenon by the beam body under lower or geological process.
The thickness of top flange steel plate 1 is more than or less than the thickness of lower flange steel plate 3.Because compressive region need to consider to bend
Song, tensile region then need not consider flexing, so the steel using amount of traditional tensile region and compressive region or area of section
Identical, make tensile region part there is function and have more than needed phenomenon, be not science and uneconomic, compressive region steel using amount
Suitably increasing, the beneficially pressurized of component, the function of tension part gives full play to, and reaches higher cost performance.
When the thickness of top flange steel plate 1 is more than the thickness of lower flange steel plate 3, it is common I-beam, upper limb balsh
Plate 1 bears pressure；When the thickness of top flange steel plate 1 is less than the thickness of lower flange steel plate 3, it is cantilever beam,
Lower flange steel plate 2 bears pressure.
Top flange steel plate 1, lower flange steel plate 3 are arch along Wavelike steel webplate 2 wavelength direction.Upper limb balsh
Plate 1, lower flange steel plate 3 are arch, beneficially member stress, offset component downwarp in the case of carrying, carry
The overall construction intensity of high I-beam.
Embodiment 2
Such as Fig. 1 to Fig. 5, shown in 7, the present embodiment is with the difference of embodiment 1: plug 24 is provided with
Barb, jack 25 is concave.The thickness of top flange steel plate 1 is less than the thickness of lower flange steel plate 3.Now,
Lower flange steel plate 3 is as pressure-bearing surface, and its main version is cantilever beam.Connection end be high-strength bolt,
Weldment.Adjacent box beam can also be linked together by the present invention by high-strength bolt, or by weldering
Fitting is by adjacent box beam Welding together.
In a word, the foregoing is only presently preferred embodiments of the present invention, all made according to scope of the present invention patent
Impartial change with modify, all should belong to the covering scope of patent of the present invention.
Claims (6)
1. the continuous I-beam of Wavelike steel webplate steel construction, beam body includes one block of Wavelike steel webplate (2), top flange steel plate
(1), lower flange steel plate (3), it is characterised in that: described Wavelike steel webplate (2) is arranged on upper limb balsh
Between plate (1) and lower flange steel plate (3), top flange steel plate (1) and Wavelike steel webplate (2) are by weldering
Connect in succession, Wavelike steel webplate (2) and lower flange steel plate (3) by being welded to connect, single girder construction it
Between connect or be connected with the combination of steel strand cable (5) by connecting end, shape by connecting end or steel strand cable (5)
Become beam structure；Described Wavelike steel webplate (2) is band changeover portion (22) and circular arc-shaped corner (21)
Continuous ladder twists and turns steel plate, changeover portion (22) is positioned between straightway (23) and circular arc-shaped corner (21),
Circular arc-shaped corner (21) radius is r, the radius of changeover portion (22) be R, R be gradual change radius, R is ∞
—r；Described Wavelike steel webplate (2) is LAB along the point of contact wire length in wave height direction, along wavelength direction
Point of contact wire length be LBC, LAB >=L BC；The described end that connects includes that one end of beam body is provided with plug
(24), the other end is provided with jack (25), is joined with jack (25) by plug (24) between adjacent beam body
Close and connect.
The continuous I-beam of Wavelike steel webplate steel construction the most according to claim 1, it is characterised in that: described
Top flange steel plate (1), lower flange steel plate (3) surface roughness are 70-350 μm.
The continuous I-beam of Wavelike steel webplate steel construction the most according to claim 1, it is characterised in that: described
Plug (24) is provided with barb, and jack (25) is concave.
The continuous I-beam of Wavelike steel webplate steel construction the most according to claim 1, it is characterised in that: described
Plug (24) is cylinder, and jack (25) is the hollow cannula coordinated with plug (24).
The continuous I-beam of Wavelike steel webplate steel construction the most according to claim 1, it is characterised in that: described
The thickness of top flange steel plate (1) is more than or less than the thickness of lower flange steel plate (3).
The continuous I-beam of Wavelike steel webplate steel construction the most according to claim 1, it is characterised in that: described
Top flange steel plate (1), lower flange steel plate (3) are arch along Wavelike steel webplate (2) wavelength direction.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310308435.8A CN103422611B (en) | 2013-07-18 | 2013-07-18 | The continuous I-beam of Wavelike steel webplate steel construction |
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| CN201310308435.8A CN103422611B (en) | 2013-07-18 | 2013-07-18 | The continuous I-beam of Wavelike steel webplate steel construction |
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| CN103422611A CN103422611A (en) | 2013-12-04 |
| CN103422611B true CN103422611B (en) | 2016-08-10 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0814090B2 (en) * | 1988-12-19 | 1996-02-14 | 川崎製鉄株式会社 | Jyointres multi-span slab composed of simple supports |
| JP2003268719A (en) * | 2002-03-13 | 2003-09-25 | Ps Mitsubishi Construction Co Ltd | Steel-concrete composite beam and its installation method |
| CN201040897Y (en) * | 2007-05-22 | 2008-03-26 | 同济大学 | Special type flexion-resistant web H section steel |
| CN101377088A (en) * | 2008-10-10 | 2009-03-04 | 万水 | Waveform plate web girder |
| CN101761184A (en) * | 2010-01-20 | 2010-06-30 | 孙天明 | Steel column and beam structure with corrugated steel web and special welding device thereof |
| CN201730243U (en) * | 2010-05-24 | 2011-02-02 | 上海欧本钢结构有限公司 | Corrugated web plate H-shaped steel |
| CN201772251U (en) * | 2010-09-19 | 2011-03-23 | 浙江精功科技股份有限公司 | Novel corrugation web H-shaped steel |
| CN102505946A (en) * | 2011-11-21 | 2012-06-20 | 中国矿业大学(北京) | Closed metal support structure and construction method thereof |
-
2013
- 2013-07-18 CN CN201310308435.8A patent/CN103422611B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0814090B2 (en) * | 1988-12-19 | 1996-02-14 | 川崎製鉄株式会社 | Jyointres multi-span slab composed of simple supports |
| JP2003268719A (en) * | 2002-03-13 | 2003-09-25 | Ps Mitsubishi Construction Co Ltd | Steel-concrete composite beam and its installation method |
| CN201040897Y (en) * | 2007-05-22 | 2008-03-26 | 同济大学 | Special type flexion-resistant web H section steel |
| CN101377088A (en) * | 2008-10-10 | 2009-03-04 | 万水 | Waveform plate web girder |
| CN101761184A (en) * | 2010-01-20 | 2010-06-30 | 孙天明 | Steel column and beam structure with corrugated steel web and special welding device thereof |
| CN201730243U (en) * | 2010-05-24 | 2011-02-02 | 上海欧本钢结构有限公司 | Corrugated web plate H-shaped steel |
| CN201772251U (en) * | 2010-09-19 | 2011-03-23 | 浙江精功科技股份有限公司 | Novel corrugation web H-shaped steel |
| CN102505946A (en) * | 2011-11-21 | 2012-06-20 | 中国矿业大学(北京) | Closed metal support structure and construction method thereof |
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| CN103422611A (en) | 2013-12-04 |
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