CN204112584U - A kind of expansion wing formula corrugated web steel-frame beam - Google Patents

A kind of expansion wing formula corrugated web steel-frame beam Download PDF

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Publication number
CN204112584U
CN204112584U CN201420537805.5U CN201420537805U CN204112584U CN 204112584 U CN204112584 U CN 204112584U CN 201420537805 U CN201420537805 U CN 201420537805U CN 204112584 U CN204112584 U CN 204112584U
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CN
China
Prior art keywords
steel
web
frame
corrugated web
expansion
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Expired - Fee Related
Application number
CN201420537805.5U
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Chinese (zh)
Inventor
万国平
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JIANGXI HUIHUANG CONSTRUCTION GROUP Co Ltd
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JIANGXI HUIHUANG CONSTRUCTION GROUP Co Ltd
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Priority to CN201420537805.5U priority Critical patent/CN204112584U/en
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Publication of CN204112584U publication Critical patent/CN204112584U/en
Expired - Fee Related legal-status Critical Current
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Abstract

The utility model discloses a kind of expansion wing formula corrugated web steel-frame beam, comprise H-shaped steel beam with corrugated web, end plate and the flat web steel beam of expansion aerofoil profile; Described end plate is welded at the beam-ends place of described H-shaped steel beam with corrugated web, and described end plate is connected by butt weld with the upper and lower edge of a wing of beam-ends of the flat web steel beam of described expansion aerofoil profile.Its object is to the plane stiffness and the shearing resistance bending resistance that improve girder steel, improve the anti-pressure ability of steel beam flange simultaneously, reduce construction cost.The beneficial effects of the utility model are: in highrise building, under the prerequisite not affecting normal operating condition, reduce the minimum thickness of described expansion wing formula corrugated web steel-frame beam web, alleviate dead load, saving steel; And the strength and stiffness in frame joint territory are improved by expanding the upper and lower edge of a wing of flat web beam-ends.

Description

A kind of expansion wing formula corrugated web steel-frame beam
Technical field
The utility model relates to structural steel design field, particularly relates to a kind of expansion wing formula corrugated web steel-frame beam.
Background technology
Due in highrise building, when traditional H profile steel web thickness is less, easily local buckling is there is under load action, generally by arranging reinforcing rib at web place thus the bearing capacity of raising web in engineering, but, it improves construction cost, and increase the deadweight of structure, therefore propose in highrise building, use corrugated web girder steel to replace traditional flat web steel beam.Research shows, uses corrugated web girder steel can improve plane stiffness and the shearing resistance bending resistance of girder steel by a relatively large margin.Due to corrugated web many employings cold working, therefore compared with traditional H profile steel beam, the cripling that corrugated web girder steel causes geometrical defect is also insensitive, fatigue life is also greatly improved, identical bear dead load situation under, 30% steel can be saved, thus reduce steel using amount and reduce cost.Due to the performance of its excellence, in recent years, ripple H profile steel is widely used, but girder steel compression flange likely occurs bending and deformation under pressure.
The utility model provides a kind of wing formula corrugated web steel-frame beam that expands and alleviates or eliminate above-mentioned shortcoming and problem.
Utility model content
Basic object of the present utility model is: provide a kind of and expand wing formula corrugated web steel-frame beam, improve plane stiffness and the shearing resistance bending resistance of girder steel, improve the anti-pressure ability of steel beam flange simultaneously, reduce construction cost.
The technical scheme that the utility model solves the employing of its technical problem is: a kind of expansion wing formula corrugated web steel-frame beam, comprises H-shaped steel beam with corrugated web 1, end plate 2 and the flat web steel beam 3 of expansion aerofoil profile; Described end plate 2 is welded at the beam-ends place of described H-shaped steel beam with corrugated web 1, and described end plate 2 is connected by butt weld with the upper and lower edge of a wing of beam-ends of the flat web steel beam of described expansion aerofoil profile 3.
Preferably, the web of the flat web steel beam of described expansion aerofoil profile 3 and edge of a wing thickness should identical with described H-shaped steel beam with corrugated web 1, thus ensure that butt weld between them can not be different and produce stress concentration phenomenon or shear failure occurs described end plate 2 due to both thickness.
Preferably, described expansion aerofoil profile flat web steel beam 3 beam-ends expands from top flange along bottom flange.
Preferably, the expansion wing panel of the flat web steel beam 3 of described expansion aerofoil profile is preferably circular arc and expands wing curve, because adopt circular arc to expand aerofoil profile node, its structure is relatively simple, and the attachment weld expanding wing place is few, and welding heat affected zone mother metal can be avoided to become fragile and brittle fracture phenomenon occurs; Expand the wing according to straight line, then likely cause stress concentration phenomenon, increase the possibility of component generation brittle fracture.
Compared with now available structure, the advantage that the utility model has is:
1, the utility model when not affecting normal use, can reduce the minimum thickness of described expansion wing formula corrugated web steel-frame beam web, alleviating dead load, saving steel.
2, improve the strength and stiffness in frame joint territory by expanding the upper and lower edge of a wing of flat web beam-ends, and under geological process, good plastic property can be had, avoid the butt weld of flat web beam and steel column to occur brittle fracture, be conducive to protection beam-ends weld seam.
accompanying drawing explanation
Fig. 1 is that the utility model one expands wing formula corrugated web steel-frame beam schematic diagram.
Wherein: 1-H-shaped steel beam with corrugated web; 2-end plate; 3-expand the flat web steel beam of aerofoil profile.
Detailed description of the invention
Following detailed description of the accompanying drawings by reference to the accompanying drawings with to embodiment of the present utility model, can comprehend the utility model.
See Fig. 1, a kind of expansion wing formula corrugated web steel-frame beam, comprises H-shaped steel beam with corrugated web 1, end plate 2 and the flat web steel beam 3 of expansion aerofoil profile.The sectional dimension force on cross-section that load action and aseismic fortification objects calculate suffered by concrete engineering of described H-shaped steel beam with corrugated web 1 is tentatively determined; The sectional dimension of the flat web steel beam of described expansion aerofoil profile 3 is determined by the sectional dimension of described H-shaped steel beam with corrugated web 1.Described H-shaped steel beam with corrugated web 1 due to web be setback shape, all more flat web steel beam of its shearing resistance bending resistance, ultimate bearing capacity is greatly improved.Due to the raising of intensity, the low 2mm-4mm of web thickness of the comparable traditional girder steel of web thickness of described H-shaped steel beam with corrugated web 1; In addition, due to the increase of described expansion aerofoil profile flat web steel beam 3 beam-ends place size, enhance the bending resistance at beam-ends place, therefore the web thickness of the flat web steel beam 3 of described expansion aerofoil profile and flange width can require according to Practical Project and determine.When choosing sectional dimension, force on cross-section, web thickness, expansion wing width uniform section parameter and overall cost should be considered, realize their optimization.
After determining sectional dimension, flexural strength, shear strength, local scour depth and stress checking calculation should be carried out respectively.After meeting requirement of strength, need verify whether the resistance to overturning of described expansion wing formula corrugated web steel-frame beam meets the demands, then check described expansion wing formula corrugated web steel-frame beam amount of deflection whether in prescribed limit.

Claims (3)

1. expand a wing formula corrugated web steel-frame beam, comprise H-shaped steel beam with corrugated web, end plate and the flat web steel beam of expansion aerofoil profile; Described end plate is welded at the beam-ends place of described H-shaped steel beam with corrugated web, and described end plate is connected by butt weld with the upper and lower edge of a wing of beam-ends of the flat web steel beam of described expansion aerofoil profile.
2. one according to claim 1 expands wing formula corrugated web steel-frame beam, it is characterized in that: the flat web steel beam beam-ends of wherein said expansion aerofoil profile expands from top flange along bottom flange.
3. one according to claim 1 expands wing formula corrugated web steel-frame beam, it is characterized in that: the form expanding the wing can be that circular arc expands the wing.
CN201420537805.5U 2014-09-18 2014-09-18 A kind of expansion wing formula corrugated web steel-frame beam Expired - Fee Related CN204112584U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420537805.5U CN204112584U (en) 2014-09-18 2014-09-18 A kind of expansion wing formula corrugated web steel-frame beam

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420537805.5U CN204112584U (en) 2014-09-18 2014-09-18 A kind of expansion wing formula corrugated web steel-frame beam

Publications (1)

Publication Number Publication Date
CN204112584U true CN204112584U (en) 2015-01-21

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420537805.5U Expired - Fee Related CN204112584U (en) 2014-09-18 2014-09-18 A kind of expansion wing formula corrugated web steel-frame beam

Country Status (1)

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CN (1) CN204112584U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110725472A (en) * 2019-09-30 2020-01-24 上海欧本钢结构有限公司 Excellent web beam with local corrugated web

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110725472A (en) * 2019-09-30 2020-01-24 上海欧本钢结构有限公司 Excellent web beam with local corrugated web

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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20150121

Termination date: 20150918

EXPY Termination of patent right or utility model