CN103422421A - Corrugated steel web steel structure simply-supported box beam - Google Patents

Corrugated steel web steel structure simply-supported box beam Download PDF

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Publication number
CN103422421A
CN103422421A CN2013103083425A CN201310308342A CN103422421A CN 103422421 A CN103422421 A CN 103422421A CN 2013103083425 A CN2013103083425 A CN 2013103083425A CN 201310308342 A CN201310308342 A CN 201310308342A CN 103422421 A CN103422421 A CN 103422421A
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China
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steel
steel plate
wavelike
webplate
box beam
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CN2013103083425A
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CN103422421B (en
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孙天明
王坤
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Zhejiang CTB Corrugated Steel Web Co., Ltd.
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HANGZHOU BOSHU CIVIL ENGINEERING TECHNOLOGY Co Ltd
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Abstract

The invention relates to box beams, and discloses a corrugated steel web steel structure simply-supported box beam which comprises two or more corrugated steel webs (2), a top steel plate (1), a bottom steel plate (3) and an end socket end plate (4). The corrugated steel webs (2) are arranged between the top steel plate (1) and the bottom steel plate (3), the top steel plate (1) is connected with the corrugated steel webs (2) through welding, and the corrugated steel webs (2) are connected with the bottom steel plate (3) through welding. The end socket end plate is arranged, so rigidity of the cross section and strength of a connecting end of a beam body are improved, the corrugated shape of each web is composed of a straight line section, a transition section and a circular arc section, the straight line section can be effectively connected with a circular arc turn angle through the transition section, and thus the problem of stress concentration when the straight line section is directly connected with the circular arc section is solved; meanwhile, a structure which is one-piece but discontinuous is adopted between simply supported beams, so the phenomenon of beam body falling off of an overload vehicle under the action of large loads or the action of an earthquake is effectively prevented.

Description

Wavelike steel webplate steel work simple supported box beam
Technical field
The present invention relates to the case beam, related in particular to a kind of Wavelike steel webplate steel work simple supported box beam.
Background technology
At present, traditional case beam or steel case beam be according to the requirement of shearing resistance flexing, and the ratio of height to thickness of web is generally in the 100:1 left and right, and trapezoidal waveform steel web is due to extremely strong shearing resistance and anti-flexural property, its ratio of height to thickness can reach 300:1 and more than.The Wavelike steel webplate adopted in existing Wavelike steel webplate case beam, the waveform of its web all is comprised of straightway and arc section, easily produces stress in the coupling part of straightway and arc section and concentrates.
Summary of the invention
The present invention is directed in prior art the shearing resistance of common case beam and anti-flexural property poor, and the corrugated sheet steel of Wavelike steel webplate case beam easily produces stress and concentrates, cause the shortcomings such as application life of case beam is short, provide a kind of by the end socket end plate is set, improve the cross section rigidity of beam body and the intensity of link, the waveform of web passes through straightway, changeover portion, arc section three parts form, wherein changeover portion can effectively connect straightway and arc section, the concentrated problem of stress when the solution straightway directly is connected with arc section, adopt disjunctor and discontinuous structure between simply supported beam simultaneously, effectively prevent from overloading under car and large load action or the drop Wavelike steel webplate steel work simple supported box beam of phenomenon of the beam body under geological process.
In order to solve the problems of the technologies described above, the present invention is solved by following technical proposals:
Wavelike steel webplate steel work simple supported box beam, comprise Wavelike steel webplate, top steel plate, bottom steel plate more than two and two, the end socket end plate, described Wavelike steel webplate is arranged between top steel plate and bottom steel plate, top steel plate and Wavelike steel webplate by being welded to connect, Wavelike steel webplate and bottom steel plate be by being welded to connect.
As preferably, described top steel plate, bottom steel surface roughness are 70-350 μ m.
As preferably, described Wavelike steel webplate is the continuous ladder twists and turns steel plate with changeover portion and circular arc-shaped corner, and changeover portion is between straightway and circular arc-shaped corner, and the circular arc-shaped corner radius is r, and the radius of changeover portion is R, and R is the gradual change radius, and R is ∞-r.
As preferably, described Wavelike steel webplate is L along the point of contact wire length of wave height direction AB, along the point of contact wire length of wavelength direction, be L BC, L AB>=L BC.
As preferably, described end socket end plate and Wavelike steel webplate, top steel plate, bottom Plate Welding.
One end of simple supported box beam is provided with plug, and the other end is provided with jack, between adjacent simple supported box beam, by plug and jack, is connected.
As preferably, described plug is provided with barb, and jack is concave.
As preferably, described plug is cylinder, and jack is to coordinate hollow cannula with plug.
As preferably, the thickness of described top steel plate is greater than or less than the thickness of bottom steel plate.
As preferably, described top steel plate, bottom steel plate are arch along the Wavelike steel webplate wavelength direction.
The present invention is owing to having adopted above technical scheme, have significant technique effect: the present invention is by arranging the end socket end plate, improve the cross section rigidity of beam body and the intensity of link, the waveform of web forms by straightway, changeover portion, arc section three parts, wherein changeover portion can effectively connect straightway and circular arc-shaped corner, the concentrated problem of stress when the solution straightway directly is connected with arc section, simultaneously between simply supported beam, adopt disjunctor and discontinuous structure, under effectively prevent from overloading car and large load action or the phenomenon that drops of the beam body under geological process.
The 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 section enlarged drawing of Fig. 2.
Fig. 4 is the left view of Fig. 1.
Fig. 5 is the connection diagram between adjacent simply supported beam.
Fig. 6 is II section enlarged drawing in Fig. 5.
Fig. 7 is III section enlarged drawing in Fig. 5.
The toponym that in above accompanying drawing, each number designation refers to is as follows: wherein 1-top steel plate, 2-Wavelike steel webplate, 3-bottom steel plate, 4-end socket end plate, 21-circular arc-shaped corner, 22-changeover portion, 23-straightway, 24-plug, 25-jack.
The specific embodiment
Below in conjunction with accompanying drawing 1 to Fig. 7 and embodiment, the present invention is described in further detail:
Embodiment 1
Wavelike steel webplate steel work simple supported box beam, as shown in Figures 1 to 6, comprise two Wavelike steel webplates 2, top steel plate 1, bottom steel plate 3, end socket end plate 4, described Wavelike steel webplate 2 is arranged between top steel plate 1 and bottom steel plate 3, top steel plate 1 and Wavelike steel webplate 2 by being welded to connect, Wavelike steel webplate 2 with bottom steel plate 3 by being welded to connect.
Top steel plate 1, bottom steel plate 3 surface roughnesses are 70-350 μ m.Increase top steel plate 1, bottom steel plate 3 surface roughnesses, high roughness can obviously increase the adhesive power of coating.
Wavelike steel webplate 2 is the continuous ladder twists and turns steel plate with changeover portion 22 and circular arc-shaped corner 21, and changeover portion 22 is between straightway 23 and circular arc-shaped corner 21, and circular arc-shaped corner 21 radiuses are r, and the radius of changeover portion 22 is R, and R is the gradual change radius, and R is ∞-r.Changeover portion 22 end that is connected with straightway 23, radius is that R is that trend is infinitely great; Changeover portion 22 end that is connected with circular arc-shaped corner 21, radius is that R is that trend equals r, therefore, by straightway 23 to circular arc-shaped corner 21, the radius R of changeover portion 22 equals r for being decreased to gradually from infinity, thereby makes straightway 23 and circular arc-shaped corner 21 smooth transition more, reduces stress and concentrates.The waveform of web forms by straightway, changeover portion, arc section three parts, wherein changeover portion can effectively connect straightway and circular arc-shaped corner, when the solution straightway directly is connected with arc section, the concentrated problem of stress, be suitable for the industrial mass manufacture, and mould and manufacturing cost are lower.
Wavelike steel webplate 2 is L along the point of contact wire length of wave height direction AB, along the point of contact wire length of wavelength direction, be L BC, L AB>=L BC.Wavelike steel webplate 2 equals or is slightly larger than the point of contact wire length along wavelength direction, i.e. L along the point of contact wire length of wave height direction AB>=L BCDesign make the shear strength of corrugated sheet steel and steel using amount reach good cost performance, if wavelength direction is long, i.e. L BC>=L ABShear behavior obviously reduces, and wavelength direction is too short, and steel using amount obviously increases.Therefore, adopt L AB>=L BCDesign, can either, guaranteeing shear strength, can reduce rolled steel dosage again as far as possible.
End socket end plate 4 and Wavelike steel webplate 2, top steel plate 1,3 welding of bottom steel plate.By end socket end plate 4 is set, improve the cross section rigidity of beam body and the intensity of link.
One end of simple supported box beam is provided with plug 24, and the other end is provided with jack 25, between adjacent simple supported box beam, by plug 24 and jack 25, is connected.Coordinate with jack 25 by plug 24, form disjunctor and discontinuous structure, under can effectively prevent from overloading car and large load action or the phenomenon that drops of the beam body under geological process.
Plug 24 is cylinder, and jack 25 is to coordinate hollow cannula with plug 24.
The thickness of top steel plate 1 is greater than the thickness of bottom steel plate 3.Because pressure zone need be considered flexing, flexing need not be considered in tensile region, so traditional tensile region is identical with the steel using amount of pressure zone or section area, make the tensile region part have the function phenomenon of having more than needed, it is science and uneconomic not, the pressure zone steel using amount suitably increases, and is conducive to the pressurized of member, the function of tension part is given full play to, and reaches higher cost performance.When the thickness of top steel plate 1 is greater than the thickness of bottom steel plate 3, it is common I-shaped case beam, and top steel plate 1 bears pressure.
Top steel plate 1, bottom steel plate 3 are arch along Wavelike steel webplate 2 wavelength direction.Top steel plate 1, bottom steel plate 3 are arch, are conducive to member stress, offset the downwarp of carrying situation lower member, improve the overall construction intensity of case beam.
Embodiment 2
As shown in Fig. 1 to Fig. 5,7, the difference of the present embodiment and embodiment 1 is: plug 24 is provided with barb, and jack 25 is concave.The thickness of top steel plate 1 is less than the thickness of bottom steel plate 3.Now, bottom steel plate 3 is as pressure-bearing surface, and its main form of structure is cantilever case beam.
In a word, the foregoing is only preferred embodiment of the present invention, all equalizations of doing according to the present patent application the scope of the claims change and modify, and all should belong to the covering scope of patent of the present invention.

Claims (10)

1. Wavelike steel webplate steel work simple supported box beam, comprise Wavelike steel webplate (2), top steel plate (1), bottom steel plate (3) more than two and two, end socket end plate (4), it is characterized in that: described Wavelike steel webplate (2) is arranged between top steel plate (1) and bottom steel plate (3), top steel plate (1) and Wavelike steel webplate (2) by being welded to connect, Wavelike steel webplate (2) with bottom steel plate (3) by being welded to connect.
2. Wavelike steel webplate steel work simple supported box beam according to claim 1, it is characterized in that: described top steel plate (1), bottom steel plate (3) surface roughness are 70-350 μ m.
3. Wavelike steel webplate steel work simple supported box beam according to claim 1, it is characterized in that: described 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) 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) is R, R is the gradual change radius, and R is ∞-r.
4. Wavelike steel webplate steel work simple supported box beam according to claim 1, it is characterized in that: described Wavelike steel webplate (2) is L along the point of contact wire length of wave height direction AB, along the point of contact wire length of wavelength direction, be L BC, L AB>=L BC.
5. Wavelike steel webplate steel work simple supported box beam according to claim 1 is characterized in that: described end socket end plate (4) is welded to connect with Wavelike steel webplate (2), top steel plate (1), bottom steel plate (3).
6. Wavelike steel webplate steel work simple supported box beam according to claim 1, it is characterized in that: an end of simple supported box beam is provided with plug (24), the other end is provided with jack (25), between adjacent simple supported box beam, by plug (24) and jack (25), is connected.
7. Wavelike steel webplate steel work simple supported box beam according to claim 6, it is characterized in that: described plug (24) is provided with barb, and jack (25) is concave.
8. Wavelike steel webplate steel work simple supported box beam according to claim 6, it is characterized in that: described plug (24) is cylinder, and jack (25) is to coordinate hollow cannula with plug (24).
9. Wavelike steel webplate steel work simple supported box beam according to claim 1, is characterized in that: the thickness of steel plate (3) bottom the thickness of described top steel plate (1) is greater than or less than.
10. Wavelike steel webplate steel work simple supported box beam according to claim 1, it is characterized in that: described top steel plate (1), bottom steel plate (3) are arch along Wavelike steel webplate (2) wavelength direction.
CN201310308342.5A 2013-07-18 2013-07-18 Wavelike steel webplate steel work simple supported box beam Active CN103422421B (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108517759A (en) * 2018-03-21 2018-09-11 山东大学 The Sarasota crossbeam connection system and construction method of Wavelike steel webplate combination beam form
CN112726956A (en) * 2020-12-30 2021-04-30 深圳市市政设计研究院有限公司 Prestressed corrugated steel web-concrete composite beam and construction method thereof

Citations (8)

* Cited by examiner, † Cited by third party
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
CN101215912A (en) * 2008-01-10 2008-07-09 同济大学 Double corrugated web plate steel box girder
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

Patent Citations (8)

* Cited by examiner, † Cited by third party
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
CN101215912A (en) * 2008-01-10 2008-07-09 同济大学 Double corrugated web plate steel box girder
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

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108517759A (en) * 2018-03-21 2018-09-11 山东大学 The Sarasota crossbeam connection system and construction method of Wavelike steel webplate combination beam form
CN112726956A (en) * 2020-12-30 2021-04-30 深圳市市政设计研究院有限公司 Prestressed corrugated steel web-concrete composite beam and construction method thereof
CN112726956B (en) * 2020-12-30 2022-04-12 深圳市市政设计研究院有限公司 Prestressed corrugated steel web-concrete composite beam and construction method thereof

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Denomination of invention: Corrugated steel web steel structure simply supported box girder

Effective date of registration: 20211025

Granted publication date: 20160224

Pledgee: Zhejiang Xiaoshan Rural Commercial Bank Co.,Ltd. Nanyang sub branch

Pledgor: Zhejiang Tunnel and Bridge of China Waveform Steel Web Plate Co.,Ltd.

Registration number: Y2021330002024