CN103556778A - Flange-closed type channel section beam - Google Patents
Flange-closed type channel section beam Download PDFInfo
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- CN103556778A CN103556778A CN201310545325.3A CN201310545325A CN103556778A CN 103556778 A CN103556778 A CN 103556778A CN 201310545325 A CN201310545325 A CN 201310545325A CN 103556778 A CN103556778 A CN 103556778A
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- flange
- section
- type channel
- horizontal flange
- closed type
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Abstract
The invention discloses a flange-closed type channel section beam. The flange-closed type channel section beam comprises a web, an upper horizontal flange, a lower horizontal flange and a vertical flange, is characterized in that the upper horizontal flange, the lower horizontal flange and the vertical flange are closed; a ratio of the upper horizontal flange to the vertical flange is (2-3.75):1. The flange-closed type channel section beam has the advantages that according to a pure bending member, the section bearing efficiency can be improved by 10.03 percent by the arrangement of the double flanges; according to an impure bending member, the section bearing efficiency can be improved by 5.65 percent by the arrangement of the double flanges. To sum up, although a small amount of steel is increased, the flexural bearing capacity of the member is obviously improved in the process of changing a section form, steel products are fully utilized, and the economic benefits are obvious. The section size of the member is not required to be increased under the condition that a load is large, the requirement of bearing force can be met by locally changing the geometric characteristics of a section only, namely the flange-closed type channel section beam has the advantages of small member section, overall light weight of the structure, large usable area of users and the like under the same condition.
Description
Technical field
the present invention relates to light gauge cold-formed steel shape component technology field, particularly the closed grooved in a kind of edge of a wing cuts section bar.
Technical background
light gauge cold-formed steel shape refers to the section bar being formed through cold working by steel band or steel plate.Compare with hot-rolled steel section structural element, light gauge cold-formed steel shape member have superior intensity from anharmonic ratio, section form is versatile and flexible and be easier to the advantages such as machine-shaping, make to adopt light gauge cold-formed steel shape structural element can obtain more cost effective effect in the relatively light low-rise building of load.Statistics shows, compares the cold-rolled forming section radius of gyration can increase more than 50% with the hot-rolled steel section of same area, and moment of inertia and area moment can increase 50 ~ 180% left and right, as can be seen here, light gauge cold-formed steel shape in state-owned vast potential for future development.
light gauge cold-formed steel shape member section flexible form is various, is easy to machine-shaping, compares cross section more carry out with hot-rolled steel section, and mechanical property is excellent, in single storey industry workshop and low layer Applying Steel Structures To A Villa, is widely used.That light gauge cold-formed steel shape structural system also has is energy-conservation, save land, material-saving, environmental protection, is conducive to housing industrialization, and have that dead load is light, the series of advantages such as short construction period, comprehensive benefit are good.This system meets Chinese soil Resource Policies, environmental protection policy and the strategy of sustainable development, is applicable to the current light-weight structure residence technology of China's actual conditions ，Dan China and also exists larger gap with the developed country such as American-European, Japanese.Present stage, conventional light gauge cold-formed steel shape section form mostly was channel-section steel and common lipped channel, and the anti-bending strength on its edge of a wing is superior not, on the steel front edge of a wing of intensity that do not reach capacity, just first unstable failure occurred, and caused steel utilization ratio not high.
summary of the invention:
the object of this invention is to provide a kind of curled edges in cold bending thin wall lipped channel beams arranges secondary crimping again and is connected with web, form the closed edge of a wing, this closed edge of a wing has increased load-bearing area and the rigidity on the edge of a wing, improved the stability on the edge of a wing, and then the closed grooved in the edge of a wing that has improved the anti-bending bearing capacity of whole member cuts section bar.
the present invention is achieved in that it comprises web, upper horizontal flange, lower horizontal flange and the vertical edge of a wing, it is characterized in that horizontal flange, lower horizontal flange and the vertical edge of a wing form closed, and upper horizontal flange is 2-3.75:1 with the ratio on the vertical edge of a wing.
advantage of the present invention is; For pure flexural member, arranging of double-vane edge can make cross section load-carrying efficiency improve 10.03%; For non-pure flexural member, arranging of double-vane edge can make cross section load-carrying efficiency improve 5.65%; To sum up, although the change of section form has increased a little steel using amount, the anti-bending bearing capacity of member obviously improves, and steel are fully utilized, remarkable in economical benefits; In the situation that load is larger, the present invention is without increasing sectional dimension of members, and only the local cross section geometric characteristic that changes just can meet requirement for bearing capacity, has under the same conditions the multiple advantages such as member section is little, and structural entity is lightweight, and user's usable floor area is large.
Accompanying drawing explanation
below in conjunction with accompanying drawing, the present invention will be further described;
fig. 1 is the structural representation of existing lipped channel member,
fig. 2 is the structural representation of the closed channel-section steel member in the edge of a wing,
the specific embodiment:
the closed grooved in this edge of a wing cuts section bar and comprises existing its web of lipped channel member 1, the edge of a wing 2, crimping 3, the edge of a wing closed channel-section steel member web 4, upper horizontal flange 5, lower horizontal flange 6 and the vertical edge of a wing 7, upper horizontal flange 5, lower horizontal flange 6 and the vertical edge of a wing 7 form closed, and upper horizontal flange 5 is 2-3.75:1 with the ratio on the vertical edge of a wing 7.The present invention's application roll bending formation technique, during roll bending formation, blank band is a series of counterrotating paired horizontal roller and the edger roll that deformable metal is arranged by tandem, (or through spot heating) progressively forms product of the present invention at normal temperatures, finally again web and secondary crimping carried out to resistance welding.
Claims (1)
1. the closed grooved in the edge of a wing cuts section bar, and it comprises web, upper horizontal flange, lower horizontal flange and the vertical edge of a wing, it is characterized in that horizontal flange, lower horizontal flange and the vertical edge of a wing form closed, and upper horizontal flange is 2-3.75 with the ratio on the vertical edge of a wing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310545325.3A CN103556778A (en) | 2013-11-07 | 2013-11-07 | Flange-closed type channel section beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310545325.3A CN103556778A (en) | 2013-11-07 | 2013-11-07 | Flange-closed type channel section beam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103556778A true CN103556778A (en) | 2014-02-05 |
Family
ID=50011115
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310545325.3A Pending CN103556778A (en) | 2013-11-07 | 2013-11-07 | Flange-closed type channel section beam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103556778A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104971959A (en) * | 2015-07-23 | 2015-10-14 | 上海宝钢型钢有限公司 | High-strength closed sectional material hot roll forming process |
| CN111648526A (en) * | 2020-03-10 | 2020-09-11 | 天津大学 | Cold-formed thin-wall steel laminated wood combined member |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996023939A1 (en) * | 1995-02-02 | 1996-08-08 | The Broken Hill Proprietary Company Limited | Improved c-section structural member |
| CN2540460Y (en) * | 2002-04-16 | 2003-03-19 | 鞍山科技大学 | Hollow H-shaped steel |
| WO2004113637A1 (en) * | 2003-06-23 | 2004-12-29 | Smorgon Steel Litesteel Products Pty Ltd | An improved beam |
| CN203531234U (en) * | 2013-11-07 | 2014-04-09 | 沈阳建筑大学 | Groove-shaped section beam with closed flange girths |
-
2013
- 2013-11-07 CN CN201310545325.3A patent/CN103556778A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996023939A1 (en) * | 1995-02-02 | 1996-08-08 | The Broken Hill Proprietary Company Limited | Improved c-section structural member |
| CN2540460Y (en) * | 2002-04-16 | 2003-03-19 | 鞍山科技大学 | Hollow H-shaped steel |
| WO2004113637A1 (en) * | 2003-06-23 | 2004-12-29 | Smorgon Steel Litesteel Products Pty Ltd | An improved beam |
| CN203531234U (en) * | 2013-11-07 | 2014-04-09 | 沈阳建筑大学 | Groove-shaped section beam with closed flange girths |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104971959A (en) * | 2015-07-23 | 2015-10-14 | 上海宝钢型钢有限公司 | High-strength closed sectional material hot roll forming process |
| CN111648526A (en) * | 2020-03-10 | 2020-09-11 | 天津大学 | Cold-formed thin-wall steel laminated wood combined member |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140205 |