CN104358349B - A kind of bending resistance, the steel plate box ellbeam that antitorque and anti-distortion ability is strong - Google Patents
A kind of bending resistance, the steel plate box ellbeam that antitorque and anti-distortion ability is strong Download PDFInfo
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- CN104358349B CN104358349B CN201410696146.4A CN201410696146A CN104358349B CN 104358349 B CN104358349 B CN 104358349B CN 201410696146 A CN201410696146 A CN 201410696146A CN 104358349 B CN104358349 B CN 104358349B
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Abstract
The invention discloses a kind of bending resistance, the steel plate box ellbeam that antitorque and anti-distortion ability is strong, including box-shaped steelframe, box-shaped steelframe is formed by connecting by top flange plate, right web, bottom wing listrium and left web head and the tail；Two pieces of flange plate lateral stiffening floors and two pieces of web lateral stiffening floors are mutually perpendicular to intersect and rectangular reinforcement structure at same position, and this reinforcement structure is fixedly mounted in box-shaped steelframe, and add this strong structure interval, span direction layout along box-shaped steelframe；Flange plate longitudinal stiffener plate is fixing respectively to be located on top flange plate and bottom wing listrium, and this flange plate longitudinal stiffener plate is connected with above-mentioned reinforcement structure intersection；Web longitudinal stiffener plate fixing right web and the left web of being located at respectively, web longitudinal stiffener plate is connected with above-mentioned reinforcement structure intersection.Present configuration is simple, is effectively increased the bending resistance of box beam, the antitorque ability with anti-distortion.
Description
Technical field
The present invention relates to a kind of box beam, more particularly, it relates to a kind of bending resistance, the steel plate box-shaped that antitorque and anti-distortion ability is strong
Beam.
Background technology
Steel plate box beam with T font has the following characteristics that 1 compared with general steel plate box beam, lightweight, material saves, due to
Box beam uses orthotropic plate face, makees beam rib and top, base plate with sheet metal, can more effectively play the bearing capacity of steel,
With compared with the general steel plate box beam of span can saving steel about 20%, and span is the biggest more saves；2, bending resistance and antitorque
Rigidity is big, and this is to be determined by the characteristic in closed thin wall cross section itself；During uiform section, section form of remaining silent is than other cross section shape
Formula can provide bigger bending resistance and torsional rigidity；3, installing and maintenance is convenient, box beam can make large-scale installation unit in factory, from
And reduce the workload that building site connects, it is suitable for longitudinal pull and the construction method of pushing tow；Box-type section simple structure, oil during maintenance
Paint is convenient, and owing to it is internally formed a closed space, corrosion resistance improves；4, the most attractive in appearance, owing to box depth of beam is relatively low,
And stiffening element and diaphragm plate are each provided at the inside of beam, so profile is succinct, the lines flow smoothly.Box beam in early days is the most medium
Span, uses many casees or single-box multi-cell cross section, and analysis method continues to use the concept of load relieving system, if being divided into by box-type section
Dry i-shaped beams calculates, and does not consider the overall torsional rigidity of box-type section, it is clear that be coarse approximation method.Later due to
The appearance of Long span list case thin-wall box beam, box beam is analyzed by side as by the curved thin-wall member turned round.
Summary of the invention
1. invention to solve the technical problem that
It is an object of the invention to make up the bending resistance of existing general steel plate box beam, distortion antitorque, anti-and Anti-pull-press ability not
Foot, it is provided that a kind of bending resistance, the antitorque steel plate box ellbeam strong with anti-distortion ability, employing technical scheme, greatly
Add the bending resistance of box beam, the antitorque ability with anti-distortion, too increase certain Anti-pull-press intensity, can be used for Complicated Steel knot
The main force part of structure, bridge etc..
2. technical scheme
For reaching above-mentioned purpose, the technical scheme that the present invention provides is:
A kind of bending resistance of the present invention, the steel plate box ellbeam that antitorque and anti-distortion ability is strong, be including box-shaped steelframe and planform
The flange plate lateral stiffening floor of " T " font, web lateral stiffening floor, flange plate longitudinal stiffener plate, web are longitudinally put more energy into
Floor, described box-shaped steelframe is formed by connecting by top flange plate, right web, bottom wing listrium and left web head and the tail, described two pieces
Flange plate lateral stiffening floor and two pieces of web lateral stiffening floors are mutually perpendicular to intersect and rectangular reinforcement knot at same position
Structure, this reinforcement structure is fixedly mounted in box-shaped steelframe, and this reinforcement structure is along interval, the span direction layout of box-shaped steelframe；
Being fixedly installed at least one block of flange plate longitudinal stiffener plate on described top flange plate and bottom wing listrium respectively, this flange plate is longitudinally
The span of floor of putting more energy into is consistent with the span of box-shaped steelframe, and this flange plate longitudinal stiffener plate is solid with above-mentioned reinforcement structure intersection
Even；Being fixedly installed at least one block of web longitudinal stiffener plate on described right web and left web respectively, this web is longitudinally put more energy into
Floor span consistent with the span of box-shaped steelframe, and web longitudinal stiffener plate and above-mentioned reinforcement structure intersection be connected.
Further, two pieces of described flange plate lateral stiffening floors and two pieces of web lateral stiffening floors are symmetrical arranged mutually；
The flange plate longitudinal stiffener plate arranged on the flange plate longitudinal stiffener plate arranged on described top flange plate and bottom wing listrium is mutual
It is symmetrical arranged；The web longitudinal stiffener plate arranged on the web longitudinal stiffener plate arranged on described right web and left web is equal
It is symmetrically set.
Further, the width of described top flange plate is B, and the thickness of top flange plate is t1, this top flange plate is by flange plate
The plate that longitudinal stiffener plate is divided into multiple spacing to be B1；The height of described right web is H, and the thickness of right web is t2,
This right web is divided into multiple spacing to be H by web longitudinal stiffener plate1Plate, B1/t1And H1/t2Value 25 to 30
Between.
Further, described planform be the flange plate lateral stiffening floor of " T " font, web lateral stiffening floor,
Flange plate longitudinal stiffener plate and a width of C of web longitudinal stiffener plate1, a height of C2, its transverse slat thickness is d1, riser thickness is
d2, C1/d1It is not more than 10, C2/d2It is not more than 20.
Further, the described reinforcement structure gap length in the span direction of box-shaped steelframe is L；Described " T " font
The height of flange plate lateral stiffening floor is C2=b1, the height of flange plate longitudinal stiffener plate is C2=b2；Described " T " word
The height of shape web lateral stiffening floor is C2=h1, the height C of web longitudinal stiffener plate2=h2, B/b1And H/h1Value exists
Between 8 to 12, L/b2And L/h2Value is between 10 to 20, b1≥b2, h1≥h2。
3. beneficial effect
Use the technical scheme that the present invention provides, compared with existing known technology, there is following remarkable result:
(1) a kind of bending resistance of the present invention, the steel plate box ellbeam that antitorque and anti-distortion ability is strong, its two pieces of flange plate transverse stiffeners
Plate and two pieces of web lateral stiffening floors are mutually perpendicular to intersect and rectangular reinforcement structure at same position, and this reinforcement structure is fixed
It is arranged in box-shaped steelframe, and this reinforcement structure is along interval, the span direction layout of box-shaped steelframe, in top flange plate and lower flange
Two block structures are set between plate and are shaped as the flange plate lateral stiffening floor of " T " font, between right web and left web, arrange two
Block structure is shaped as the web lateral stiffening floor of " T " font, stable connection, adds the bending resistance of box beam, antitorque and anti-abnormal
The ability become, also enhances certain Anti-pull-press intensity；
(2) a kind of bending resistance of the present invention, the steel plate box ellbeam that antitorque and anti-distortion ability is strong, on its top flange plate and bottom wing listrium
It is fixedly installed at least one block of flange plate longitudinal stiffener plate, the span of this flange plate longitudinal stiffener plate and box-shaped steelframe respectively
Span is consistent, and this flange plate longitudinal stiffener plate is connected with above-mentioned reinforcement structure intersection, solid respectively on right web and left web
Surely be provided with at least one block of web longitudinal stiffener plate, this web longitudinal stiffener plate span consistent with the span of box-shaped steelframe,
And web longitudinal stiffener plate is connected with above-mentioned reinforcement structure intersection, at flange plate lateral stiffening floor and top flange plate or bottom wing
Planform is set between listrium for the flange plate longitudinal stiffener plate of " T " font, at web lateral stiffening floor and right web or
The web longitudinal stiffener plate that planform is " T " font is set between left web, connects the most firm, greatly strengthen box
The bending resistance of beam, the antitorque ability with anti-distortion, also further enhancing Anti-pull-press intensity；
(3) a kind of bending resistance of the present invention, the steel plate box ellbeam that antitorque and anti-distortion ability is strong, the width of its top flange plate is B,
The thickness of top flange plate is t1, this top flange plate is divided into multiple spacing to be B by flange plate longitudinal stiffener plate1Plate, right abdomen
The height of plate is H, and the thickness of right web is t2, plate that this right web is divided into multiple spacing to be H1 by web longitudinal stiffener plate
Block, B1/t1And H1/t2Value between 25 to 30, work as B through practice and theoretical detection1/t1And H1/t2Value 25
Time between 30, being reasonably distributed of flange plate longitudinal stiffener plate and web longitudinal stiffener plate, can not only be to strengthening box beam
Bending resistance, antitorque reach optimum with anti-distortion ability, and save material；
(4) a kind of bending resistance of the present invention, the steel plate box ellbeam that antitorque and anti-distortion ability is strong, its planform is " T " word
The flange plate lateral stiffening floor of shape, web lateral stiffening floor, flange plate longitudinal stiffener plate and web longitudinal stiffener plate
A width of C1, a height of C2, its transverse slat thickness is d1, riser thickness is d2, C1/d1It is not more than 10, C2/d2It is not more than 20,
The planform working as flange plate longitudinal stiffener plate and web longitudinal stiffener plate through practice and theoretical detection is " T " font, and
C1/d1It is not more than 10, C2/d2When being not more than 20, flange plate lateral stiffening floor, web lateral stiffening floor, flange plate are vertical
The most reasonable to the manufacture of put more energy into floor and web longitudinal stiffener plate, can not only to strengthen box beam bending resistance, antitorque with resist abnormal
The ability become reaches optimum, and saves material；
(5) a kind of bending resistance of the present invention, the steel plate box ellbeam that antitorque and anti-distortion ability is strong, its reinforcement structure is at box-shaped steelframe
The gap length in span direction is L, and the height of " T " font flange plate lateral stiffening floor is C2=b1, flange plate is longitudinally put more energy into
The height of floor is C2=b2；The height of described " T " font web lateral stiffening floor is C2=h1, web longitudinal stiffener
The height C of plate2=h2, B/b1And H/h1Value between 8 to 12, L/b2And L/h2Value is between 10 to 20, b1≥b2,
h1≥h2, work as B/b through practice and theoretical detection1And H/h1Value between 8 to 12, L/b2And L/h2Value is 10 to arrive
Between 20, b1≥b2, h1≥h2Time, the combination row of reinforcement structure, flange plate longitudinal stiffener plate and web longitudinal stiffener plate
Cloth is the most reasonable, and for strengthening the bending resistance of box beam, antitorque reaching optimum with anti-distortion ability.
Accompanying drawing explanation
Fig. 1 is the perspective view of a kind of bending resistance of the present invention, the steel plate box ellbeam that antitorque and anti-distortion ability is strong；
Fig. 2 is the planar structure schematic diagram of a kind of bending resistance of the present invention, the steel plate box ellbeam that antitorque and anti-distortion ability is strong；
Fig. 3 is flange plate transverse stiffener plate or web lateral stiffening floor or flange plate longitudinal stiffener plate or web in the present invention
The structural representation of longitudinal stiffener plate.
Label declaration in schematic diagram: 1, top flange plate；2, right web；3, bottom wing listrium；4, left web；5, flange plate
Lateral stiffening floor；6, web lateral stiffening floor；7, flange plate longitudinal stiffener plate；8, web longitudinal stiffener plate.
Detailed description of the invention
For further appreciating that present disclosure, the present invention is described in detail in conjunction with the accompanying drawings and embodiments.
Embodiment
In conjunction with Fig. 1, Fig. 2 and Fig. 3, a kind of bending resistance of the present embodiment, the steel plate box ellbeam that antitorque and anti-distortion ability is strong, including
Box-shaped steelframe and planform are the flange plate lateral stiffening floor 5 of " T " font, web lateral stiffening floor 6, flange plate
Longitudinal stiffener plate 7, web longitudinal stiffener plate 8, box-shaped steelframe is by top flange plate 1, right web 2, bottom wing listrium 3 and a left side
Web 4 head and the tail are formed by connecting, and two pieces of flange plate lateral stiffening floors 5 and two pieces of web lateral stiffening floors 6 are at same position
It is mutually perpendicular to intersect and rectangular reinforcement structure, and two pieces of flange plate lateral stiffening floors 5 and two pieces of web lateral stiffening floors 6
It is symmetrical arranged mutually, two pieces of flange plate lateral stiffening floors 5 and two pieces of web lateral stiffening floors 6 reinforcement structure connected
It is that segmentation is welded；This reinforcement structure is fixedly mounted in box-shaped steelframe, and this reinforcement structure is along the span of box-shaped steelframe
Interval, direction is arranged, stable connection, adds the bending resistance of box beam, the antitorque ability with anti-distortion, also enhances certain resisting
Tensile and compressive strength；At least one block of flange plate longitudinal stiffener plate 7 it is fixedly installed respectively on top flange plate 1 and bottom wing listrium 3, and
Flange plate longitudinal stiffener plate 7 phase arranged on the flange plate longitudinal stiffener plate 7 arranged on top flange plate 1 and bottom wing listrium 3
It is symmetrical arranged mutually, the present embodiment is fixedly installed one piece of flange plate longitudinal stiffener on top flange plate 1 and bottom wing listrium 3 respectively
Plate 7；The span of this flange plate longitudinal stiffener plate 7 is consistent with the span of box-shaped steelframe, and this flange plate longitudinal stiffener plate 7
Being connected with above-mentioned reinforcement structure intersection, flange plate longitudinal stiffener plate 7 and above-mentioned reinforcement structure are that segmentation is welded；Right abdomen
Being fixedly installed at least one block of web longitudinal stiffener plate 8 on plate 2 and left web 4 respectively, the web that right web 2 is arranged is indulged
The web longitudinal stiffener plate 8 arranged on put more energy into floor 8 and left web 4 is symmetrical arranged mutually, right web in the present embodiment
2 and left web 4 on be fixedly installed two blocks of web longitudinal stiffener plates 8 respectively；This web longitudinal stiffener plate 8 span with
The span of box-shaped steelframe is consistent, and web longitudinal stiffener plate 8 is connected with above-mentioned reinforcement structure intersection, web longitudinal stiffener
Plate 8 and above-mentioned reinforcement structure are that segmentation is welded, and connect the most firm, greatly strengthen the bending resistance of box beam, antitorque and anti-
The ability of distortion, also further enhancing Anti-pull-press intensity；In order to make flange plate longitudinal stiffener plate 7 and web longitudinal stiffener
Plate 8 is reasonably distributed on top flange plate 1 or bottom wing listrium 3, right web 2 or left web 4, and the width of top flange plate 1 is B,
The thickness of top flange plate 1 is t1, this top flange plate 1 is divided into multiple spacing to be B by flange plate longitudinal stiffener plate 71Plate,
The present embodiment is divided into 2 pieces；The height of right web 2 is H, and the thickness of right web 2 is t2, this right web 2 is indulged by web
It is divided into multiple spacing to be H to floor 8 of putting more energy into1Plate, the present embodiment is divided into 3 pieces, B1/t1And H1/t2Value exist
Between 25 to 30, B/t in the present embodiment1And H/t2Value be 25；And for make manufacture flange plate lateral stiffening floor 5,
Web lateral stiffening floor 6, flange plate longitudinal stiffener plate 7 and web longitudinal stiffener plate 8 are the most reasonable, and planform is equal
Flange plate lateral stiffening floor 5, web lateral stiffening floor 6, flange plate longitudinal stiffener plate 7 and web for " T " font
A width of C of longitudinal stiffener plate 81, a height of C2, its transverse slat thickness is d1, riser thickness is d2, C1/d1It is not more than 10, C2/d2
It is not more than 20, C in the present embodiment1/d1=10, C2/d2=20；And in order to make reinforcement structure, flange plate longitudinal stiffener plate 7,
The combination arrangement of web longitudinal stiffener plate 8 is the most reasonable, and the reinforcement structure gap length in the span direction of box-shaped steelframe is L；
The height of " T " font flange plate lateral stiffening floor 5 is C2=b1, the height of flange plate longitudinal stiffener plate 7 is C2=b2；
The height of " T " font web lateral stiffening floor 6 is C2=h1, the height C of web longitudinal stiffener plate 82=h2, B/b1With
H/h1Value between 8 to 12, L/b2And L/h2Value is between 10 to 20, b1≥b2, h1≥h2, the present embodiment
Middle B/b1And H/h1Value is 8, L/b2And L/h2Value is 18, b1=b2, h1=h2。
In work progress, if when B >=1000 and H >=1500, can be first by top flange plate 1, right web 2, bottom wing during construction
Listrium 3 and left web 4 head and the tail are formed by connecting box-shaped steelframe, then the construct reinforcement structure of inside, flange plate longitudinal stiffener plate 7
With web longitudinal stiffener plate 8；When being unsatisfactory for above-mentioned condition, first flange plate longitudinal stiffener plate 7 and flange plate are laterally added
Strength floor 5 is respectively welded on top flange plate 1 and bottom wing listrium 3, web longitudinal stiffener plate 8 and web lateral stiffening floor
6 are respectively welded on right web 2 and left web 4, finally by top flange plate 1, right web 2, bottom wing listrium 3 and left web 4
Surround box-shaped steelframe.
A kind of bending resistance of the present invention, the steel plate box ellbeam that antitorque and anti-distortion ability is strong, simple in construction, box-shaped steelframe is internal to be arranged
Reinforcement structure, flange plate longitudinal stiffener plate 7 and web longitudinal stiffener plate 8, greatly add box beam bending resistance,
The antitorque ability with anti-distortion, too increases certain Anti-pull-press intensity, can be used for the main stress of complex steel structure, bridge etc.
Position.
Schematically being described the present invention and embodiment thereof above, this description does not has restricted, shown in accompanying drawing yet
Simply one of embodiments of the present invention, actual structure is not limited thereto.So, if those of ordinary skill in the art
Enlightened by it, in the case of without departing from the invention objective, design the knot similar to this technical scheme without creative
Structure mode and embodiment, all should belong to protection scope of the present invention.
Claims (5)
1. bending resistance, the steel plate box ellbeam that antitorque and anti-distortion ability is strong, including box-shaped steelframe, described box-shaped steelframe is by upper
Flange plate (1), right web (2), bottom wing listrium (3) and left web (4) head and the tail are formed by connecting, it is characterised in that: also wrap
Include planform and be flange plate lateral stiffening floor (5) of " T " font, web lateral stiffening floor (6), flange plate longitudinally
Put more energy into floor (7), web longitudinal stiffener plate (8), two pieces of described flange plates lateral stiffening floor (5) and two pieces of web horizontal strokes
Being mutually perpendicular to intersect and rectangular reinforcement structure at same position to floor of putting more energy into (6), this reinforcement structure is fixedly mounted on box-shaped
In steelframe, and this reinforcement structure is along interval, the span direction layout of box-shaped steelframe；Described top flange plate (1) and bottom wing listrium
(3) at least one piece of flange plate longitudinal stiffener plate (7) it is fixedly installed on respectively, this flange plate longitudinal stiffener plate (7)
Span is consistent with the span of box-shaped steelframe, and this flange plate longitudinal stiffener plate (7) is connected with above-mentioned reinforcement structure intersection；Institute
At least one piece of web longitudinal stiffener plate (8), this web it is fixedly installed respectively on the right web (2) stated and left web (4)
Longitudinal stiffener plate (8) span consistent with the span of box-shaped steelframe, and web longitudinal stiffener plate (8) and above-mentioned reinforcement
Structure intersection is connected.
A kind of bending resistance the most according to claim 1, the steel plate box ellbeam that antitorque and anti-distortion ability is strong, it is characterised in that:
Two pieces of described flange plates lateral stiffening floor (5) and two pieces of webs lateral stiffening floor (6) are symmetrical arranged mutually；Described
Upper flange plate longitudinal stiffener plate (7) arranged of top flange plate (1) and the upper flange plate arranged of bottom wing listrium (3) is longitudinal adds
Strength floor (7) is symmetrically set；Upper web longitudinal stiffener plate (8) arranged of described right web (2) and left web (4)
Web longitudinal stiffener plate (8) of upper setting is symmetrical arranged mutually.
A kind of bending resistance the most according to claim 2, the steel plate box ellbeam that antitorque and anti-distortion ability is strong, it is characterised in that:
The width of described top flange plate (1) is B, and the thickness of top flange plate (1) is t1, this top flange plate (1) is indulged by flange plate
It is divided into multiple spacing to be B to floor of putting more energy into (7)1Plate；The height of described right web (2) is H, right web (2)
Thickness be t2, plate that this right web (2) is divided into multiple spacing to be H1 by web longitudinal stiffener plate (8), B1/t1With
H1/t2Value between 25 to 30.
A kind of bending resistance the most according to claim 3, the steel plate box ellbeam that antitorque and anti-distortion ability is strong, it is characterised in that:
Described planform is flange plate lateral stiffening floor (5) of " T " font, web lateral stiffening floor (6), flange plate
Longitudinal stiffener plate (7) and a width of C of web longitudinal stiffener plate (8)1, a height of C2, its transverse slat thickness is d1, riser is thick
Degree is d2, C1/d1It is not more than 10, C2/d2It is not more than 20.
A kind of bending resistance the most according to claim 4, the steel plate box ellbeam that antitorque and anti-distortion ability is strong, it is characterised in that:
The described reinforcement structure gap length in the span direction of box-shaped steelframe is L；Described " T " font flange plate transverse stiffener
The height of plate (5) is C2=b1, the height of flange plate longitudinal stiffener plate (7) is C2=b2；Described " T " font web
The height of lateral stiffening floor (6) is C2=h1, the height C of web longitudinal stiffener plate (8)2=h2, B/b1And H/h1Take
It is worth between 8 to 12, L/b2And L/h2Value is between 10 to 20, b1≥b2, h1≥h2。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410696146.4A CN104358349B (en) | 2014-11-26 | 2014-11-26 | A kind of bending resistance, the steel plate box ellbeam that antitorque and anti-distortion ability is strong |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410696146.4A CN104358349B (en) | 2014-11-26 | 2014-11-26 | A kind of bending resistance, the steel plate box ellbeam that antitorque and anti-distortion ability is strong |
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| CN104358349B true CN104358349B (en) | 2016-08-17 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106836639B (en) * | 2017-04-11 | 2022-09-23 | 南京工业大学 | FRP box-shaped section-concrete combined beam provided with bidirectional shear keys |
| CN109930745B (en) * | 2019-04-24 | 2024-04-12 | 中国建筑设计研究院有限公司 | Ribbed thin-wall box girder and building comprising same |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4987717A (en) * | 1987-11-20 | 1991-01-29 | Dameron Jr Joseph T | Gutter facia design adapted for use in box beam applications |
| US7634891B2 (en) * | 2004-09-09 | 2009-12-22 | Kazak Composites, Inc. | Hybrid beam and stanchion incorporating hybrid beam |
| CN102102420A (en) * | 2010-12-20 | 2011-06-22 | 林娟 | Porous box-shaped aluminum alloy beam |
| CN202644840U (en) * | 2012-06-15 | 2013-01-02 | 湖北弘毅钢结构工程有限公司 | Corrugated web steel box girder |
| CN204282643U (en) * | 2014-11-26 | 2015-04-22 | 江苏筑森建筑设计有限公司 | A kind of bending resistance, the steel plate box ellbeam that antitorque and anti-distortion ability is strong |
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