CN104947706A - Flange extension type column foot for a narrow flange steel column and construction technology of column foot - Google Patents
Flange extension type column foot for a narrow flange steel column and construction technology of column foot Download PDFInfo
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- CN104947706A CN104947706A CN201510396076.5A CN201510396076A CN104947706A CN 104947706 A CN104947706 A CN 104947706A CN 201510396076 A CN201510396076 A CN 201510396076A CN 104947706 A CN104947706 A CN 104947706A
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- column
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Abstract
The invention relates to a flange extension type column foot for a narrow flange steel column, and a construction technology of the column foot. The column foot is characterized in that the column foot is embedded into a reinforced concrete foundation; the column foot comprises a bottom plate arranged at the bottom end face of the steel column, and flange extension plates arranged on two side walls of two flanges of the steel column respectively; the flange extension plates are welded on the side walls of the flanges by groove complete-penetration welds, and welded with the bottom plate; vertical stiffening ribs are welded between the two opposite flange extension plates; horizontal stiffening ribs are arranged at a top port of a containing cavity; a plurality of studs are uniformly on the bottoms of outer wall surfaces of the two flanges respectively; and anchor bolts are arranged at the two ends of the bottom plate. According to the column foot, with the adoption of the horizontal stiffening ribs and the vertical stiffening ribs, the effective bearing width of an embedded part of the steel column is increased, a bending moment and a shearing force borne by an imbedded column foot node can be transferred conveniently, the embedded depth of the steel column can be reduced significantly, and the embedded depth of the foundation or a bearing platform can be further reduced. The column foot has better economic benefits in engineering practices.
Description
Technical field
The present invention relates to a kind of narrow edge of a wing steel column and expand aerofoil profile suspension column and construction technology thereof.
Background technology
Embedded column base is the suspension column directly steel column being imbedded reinforced concrete foundation, grade beam, cushion cap, and it imbeds method is assembled on request by steel kind design to be in advance fixed in design elevation, then waters the concrete of basis, grade beam, cushion cap.The method is conducive to the integral rigidity ensureing steel kind design and basis, grade beam, cushion cap.For embedded column base, affect the bending rigidity of suspension column, the most important factor of bearing capacity ability is the buried depth of steel column.Domestic current specification is for the design of suspension column buried depth, and relatively conservative, removing has the building structure arranging basement, all faces the excessive uneconomical problem causing basis, grade beam, cushion cap etc. excessive, excessively dark of buried depth of steel kind design.
Summary of the invention
The present invention is directed to above-mentioned prior art Problems existing and make improvement, namely technical problem to be solved by this invention is to provide a kind of narrow edge of a wing steel column expansion aerofoil profile suspension column and construction technology thereof, expand effective pressure-bearing width of steel column inlet part, be conducive to the transmission of moment of flexure and shearing suffered by embedded column base node, significantly can reduce the buried depth of steel column, thus reducing the buried depth of basis or cushion cap further, this foot joint has good economic benefit in engineering reality.
In order to solve the problems of the technologies described above, a kind of technical scheme of the present invention is: a kind of narrow edge of a wing steel column expands aerofoil profile suspension column, described suspension column is imbedded in reinforced concrete foundation, comprise the base plate being arranged on steel column bottom end face, be separately positioned on the expansion wing plate of the two side on steel column two edge of a wing, this expansion wing plate is welded on the sidewall of the edge of a wing by groove full penetration weld, and weld mutually with base plate, vertical stiffening rib is welded with between described two blocks of expansion wing plates relatively, described vertical stiffening rib parallels with the web of steel column, the described edge of a wing, web, expand wing plate, vertical stiffening rib and base plate form a cavity volume jointly, described cavity volume top open part is provided with sash rib, several pegs are evenly equipped with respectively on bottom described two edge of a wing outside wall surface, described base plate two ends are provided with crab-bolt.
Further, described expansion wing plate top is higher than sash rib, and described expansion wing plate top is provided with a corner cut, and this corner cut height is the protective layer thickness of reinforced concrete foundation.
Further, described sash rib is by this cavity volume top seal, and be provided with the grout hole toward the grouting of this cavity volume in the middle part of described sash rib, this grout hole radius should meet grouting requirement.
Further, described vertical stiffening rib and sash rib, expand wing plate and base plate welds mutually; The spacing of described vertical stiffening rib and web is the minimum value between 4 times of edge of a wing thickness to 75mm; The spacing of described vertical stiffening rib and edge of a wing sidewall is more than or equal to 2 times of edge of a wing thickness.
Further, described base plate is provided with the through hole for installing crab-bolt, on the outside that described through hole is positioned at steel column and web center line.
Further, described crab-bolt is not less than 35 times of crab-bolt diameters in the anchorage length of base plate bottom, and described crab-bolt top is run through base plate and used nut fastening.
In order to solve the problems of the technologies described above, another kind of technical scheme of the present invention is: a kind of narrow edge of a wing steel column expands the construction technology of aerofoil profile suspension column, carries out according to the following steps:
(1) the narrow edge of a wing steel column of required specification is selected, and according to imbedding the relevant parameter of steel column, produce satisfactory vertical stiffening rib, sash rib, expand wing plate and base plate, and on sash rib, offer the grout hole meeting grouting and require, offer through hole at base plate two ends;
(2) shop: at the bottom end face welding base plate of steel column, and will be welded on the sidewall of the edge of a wing by groove full penetration weld, and weld mutually with base plate, in expansion, wing plate place determines vertical stiffening rib welding position, then vertical stiffening rib is welded mutually with expansion wing plate, base plate respectively, vertical stiffening rib parallels with steel column web, on the edge of a wing, the cavity volume top open part weld horizontal stiffening rib that jointly forms of web, expansion wing plate, vertically stiffening rib and base plate, bottom two edge of a wing outside wall surface, weld several pegs respectively;
(3) site operation: crab-bolt be embedded in advance in reinforced concrete foundation by design attitude, reaches after steel column installation strength until reinforced concrete foundation, is lifted by prefabricated steel column in step (2); In lifting construction, the through hole of base plate runs through crab-bolt respectively, and after the horizontal level adjusting steel column and verticality, crab-bolt top adopts nut fastening; Finally, build pouring concrete after more than line, should be poured in steel column cavity volume by rear pouring concrete simultaneously by grout hole at steel concrete secondary, until grout hole grout, rear pouring concrete should adopt the concrete of same intensity grade with reinforced concrete foundation.
Further; described expansion wing plate top is higher than sash rib; described expansion wing plate top is provided with a corner cut; this corner cut height is the protective layer thickness of reinforced concrete foundation; described sash rib is by this cavity volume top seal; be provided with the grout hole toward the grouting of this cavity volume in the middle part of described sash rib, this grout hole radius should meet grouting requirement.
Further, described vertical stiffening rib and sash rib, expand wing plate and base plate welds mutually; The spacing of described vertical stiffening rib and web is the minimum value between 4 times of edge of a wing thickness to 75mm; The spacing of described vertical stiffening rib and edge of a wing sidewall is more than or equal to 2 times of edge of a wing thickness.
Further, described base plate is provided with the through hole for installing crab-bolt, on the outside that described through hole is positioned at steel column and web center line; Described crab-bolt is not less than 35 times of crab-bolt diameters in the anchorage length of base plate bottom, and described crab-bolt top is run through base plate and used nut fastening.
Compared with prior art, the present invention has following beneficial effect: by arranging sash rib, vertically stiffening rib and expanding wing plate, expand effective pressure-bearing width of suspension column inlet part, be conducive to the transmission of moment of flexure and shearing suffered by embedded column base node, thus reach the object reducing suspension column buried depth, and can reduce by the buried depth of about 30%, there is good economic benefit; The setting of peg, crab-bolt, improves the collaborative work between steel column, rear pouring concrete and reinforced concrete foundation, thus improves the globality of foot joint, realizes cooperative bearing.
Below in conjunction with the drawings and specific embodiments, the present invention will be further described in detail.
Accompanying drawing explanation
Fig. 1 is the organigram of the embodiment of the present invention one.
Fig. 2 is A-A sectional view in Fig. 1.
Fig. 3 is B-B sectional view in Fig. 1.
Fig. 4 is C-C sectional view in Fig. 1.
In figure: 1-H shape steel column, 2-base plate, 21-through hole, 3-expands wing plate, the vertical stiffening rib of 4-, 5-sash rib, 51-grout hole, 6-peg, 7-crab-bolt, 8-reinforced concrete foundation, and 9-steel concrete secondary builds line, pouring concrete after 10-.
Detailed description of the invention
Embodiment one: as shown in Fig. 1 ~ 4, a kind of narrow edge of a wing steel column expands aerofoil profile suspension column, described suspension column is imbedded in reinforced concrete foundation, comprise the base plate 2 being arranged on H-shaped steel column 1 bottom end face, be separately positioned on the expansion wing plate 3 of the two side on steel column two edge of a wing, this expansion wing plate 3 is welded on the sidewall of the edge of a wing by groove full penetration weld, and weld mutually with base plate 2, vertical stiffening rib 4 is welded with between described two blocks of expansion wing plates relatively, described vertical stiffening rib 4 parallels with the web of steel column, the described edge of a wing, web, expand wing plate 3, vertical stiffening rib 4 and base plate form a cavity volume jointly, described cavity volume top open part is provided with sash rib 5, several pegs 6 are evenly equipped with respectively on bottom described two edge of a wing outside wall surface, described base plate 2 two ends are provided with crab-bolt 7.
In the present embodiment, described expansion wing plate 3 top is higher than sash rib 5, and described expansion wing plate 3 top is provided with a corner cut, and this corner cut height is the protective layer thickness of reinforced concrete foundation 8.
In the present embodiment, described sash rib 5 is by this cavity volume top seal, and be provided with the grout hole 51 toward the grouting of this cavity volume in the middle part of described sash rib 5, this grout hole 51 radius should meet grouting requirement.
In the present embodiment, described vertical stiffening rib 4 and sash rib 5, expand wing plate 3 and base plate welds mutually; The spacing of described vertical stiffening rib and web is the minimum value between 4 times of edge of a wing thickness to 75mm; The spacing of described vertical stiffening rib and edge of a wing sidewall is more than or equal to 2 times of edge of a wing thickness.
In the present embodiment, described base plate 2 is provided with the through hole 21 for installing crab-bolt, on the outside that described through hole 21 is positioned at steel column and web center line.
In the present embodiment, described crab-bolt 7 is not less than 35 times of crab-bolt diameters in the anchorage length of base plate bottom, and described crab-bolt 7 top is run through base plate and used nut fastening.
The construction technology of this device, carry out according to the following steps:
(1) the narrow edge of a wing H-shaped steel column of required specification is selected, and according to imbedding the relevant parameter of steel column, produce satisfactory vertical stiffening rib, sash rib, expand wing plate and base plate, and on sash rib, offer the grout hole meeting grouting and require, offer through hole at base plate two ends;
(2) shop: at the bottom end face welding base plate of steel column, and will be welded on the sidewall of the edge of a wing by groove full penetration weld, and weld mutually with base plate, in expansion, wing plate place determines vertical stiffening rib welding position, then vertical stiffening rib is welded mutually with expansion wing plate, base plate respectively, vertical stiffening rib parallels with steel column web, on the edge of a wing, the cavity volume top open part weld horizontal stiffening rib that jointly forms of web, expansion wing plate, vertically stiffening rib and base plate, bottom two edge of a wing outside wall surface, weld several pegs respectively;
(3) site operation: be embedded in reinforced concrete foundation 8 in advance by design attitude by crab-bolt, reaches after steel column installation strength until reinforced concrete foundation, is lifted by prefabricated steel column in step (2); In lifting construction, the through hole of base plate runs through crab-bolt respectively, and after the horizontal level adjusting steel column and verticality, crab-bolt top adopts nut fastening; Finally, build pouring concrete 10 after line more than 9, should be poured in steel column cavity volume by rear pouring concrete simultaneously by grout hole at steel concrete secondary, until grout hole grout, rear pouring concrete should adopt the concrete of same intensity grade with reinforced concrete foundation.
The distance of described sash rib and reinforced concrete foundation 8 end face is protective layer thickness.
The foregoing is only preferred embodiment of the present invention, all equalizations done according to the present patent application the scope of the claims change and modify, and all should belong to covering scope of the present invention.
Claims (10)
1. a narrow edge of a wing steel column expands aerofoil profile suspension column, it is characterized in that: described suspension column is imbedded in reinforced concrete foundation, comprise the base plate being arranged on steel column bottom end face, be separately positioned on the expansion wing plate of the two side on steel column two edge of a wing, this expansion wing plate is welded on the sidewall of the edge of a wing by groove full penetration weld, and weld mutually with base plate, vertical stiffening rib is welded with between described two blocks of expansion wing plates relatively, described vertical stiffening rib parallels with the web of steel column, the described edge of a wing, web, expand wing plate, vertical stiffening rib and base plate form a cavity volume jointly, described cavity volume top open part is provided with sash rib, several pegs are evenly equipped with respectively on bottom described two edge of a wing outside wall surface, described base plate two ends are provided with crab-bolt.
2. the narrow edge of a wing according to claim 1 steel column expands aerofoil profile suspension column, it is characterized in that: described expansion wing plate top is higher than sash rib, and described expansion wing plate top is provided with a corner cut, and this corner cut height is the protective layer thickness of reinforced concrete foundation.
3. the narrow edge of a wing according to claim 1 steel column expands aerofoil profile suspension column, it is characterized in that: described sash rib is by this cavity volume top seal, and be provided with the grout hole toward the grouting of this cavity volume in the middle part of described sash rib, this grout hole radius should meet grouting requirement.
4. the narrow edge of a wing according to claim 1 steel column expands aerofoil profile suspension column, it is characterized in that: described vertical stiffening rib and sash rib, expand wing plate and base plate welds mutually; The spacing of described vertical stiffening rib and web is the minimum value between 4 times of edge of a wing thickness to 75mm; The spacing of described vertical stiffening rib and edge of a wing sidewall is more than or equal to 2 times of edge of a wing thickness.
5. the narrow edge of a wing according to claim 1 steel column expands aerofoil profile suspension column, it is characterized in that: described base plate is provided with the through hole for installing crab-bolt, on the outside that described through hole is positioned at steel column and web center line.
6. the narrow edge of a wing according to claim 1 steel column expands aerofoil profile suspension column, it is characterized in that: described crab-bolt is not less than 35 times of crab-bolt diameters in the anchorage length of base plate bottom, and described crab-bolt top is run through base plate and used nut fastening.
7. narrow edge of a wing steel column expands a construction technology for aerofoil profile suspension column, it is characterized in that, carries out according to the following steps:
(1) the narrow edge of a wing steel column of required specification is selected, and according to imbedding the relevant parameter of steel column, produce satisfactory vertical stiffening rib, sash rib, expand wing plate and base plate, and on sash rib, offer the grout hole meeting grouting and require, offer through hole at base plate two ends;
(2) shop: at the bottom end face welding base plate of steel column, and will be welded on the sidewall of the edge of a wing by groove full penetration weld, and weld mutually with base plate, in expansion, wing plate place determines vertical stiffening rib welding position, then vertical stiffening rib is welded mutually with expansion wing plate, base plate respectively, vertical stiffening rib parallels with steel column web, on the edge of a wing, the cavity volume top open part weld horizontal stiffening rib that jointly forms of web, expansion wing plate, vertically stiffening rib and base plate, bottom two edge of a wing outside wall surface, weld several pegs respectively;
(3) site operation: crab-bolt be embedded in advance in reinforced concrete foundation by design attitude, reaches after steel column installation strength until reinforced concrete foundation, is lifted by prefabricated steel column in step (2); In lifting construction, the through hole of base plate runs through crab-bolt respectively, and after the horizontal level adjusting steel column and verticality, crab-bolt top adopts nut fastening; Finally, build pouring concrete after more than line, should be poured in steel column cavity volume by rear pouring concrete simultaneously by grout hole at steel concrete secondary, until grout hole grout, rear pouring concrete should adopt the concrete of same intensity grade with reinforced concrete foundation.
8. the narrow edge of a wing according to claim 6 steel column expands the construction technology of aerofoil profile suspension column; it is characterized in that: described expansion wing plate top is higher than sash rib; described expansion wing plate top is provided with a corner cut; this corner cut height is the protective layer thickness of reinforced concrete foundation; described sash rib is by this cavity volume top seal; be provided with the grout hole toward the grouting of this cavity volume in the middle part of described sash rib, this grout hole radius should meet grouting requirement.
9. the narrow edge of a wing according to claim 6 steel column expands the construction technology of aerofoil profile suspension column, it is characterized in that: described vertical stiffening rib and sash rib, expand wing plate and base plate welds mutually; The spacing of described vertical stiffening rib and web is the minimum value between 4 times of edge of a wing thickness to 75mm; The spacing of described vertical stiffening rib and edge of a wing sidewall is more than or equal to 2 times of edge of a wing thickness.
10. the narrow edge of a wing according to claim 6 steel column expands the construction technology of aerofoil profile suspension column, it is characterized in that: described base plate is provided with the through hole for installing crab-bolt, on the outside that described through hole is positioned at steel column and web center line; Described crab-bolt is not less than 35 times of crab-bolt diameters in the anchorage length of base plate bottom, and described crab-bolt top is run through base plate and used nut fastening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510396076.5A CN104947706B (en) | 2015-07-08 | 2015-07-08 | A kind of narrow edge of a wing steel column expands aerofoil profile suspension column and construction technology thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510396076.5A CN104947706B (en) | 2015-07-08 | 2015-07-08 | A kind of narrow edge of a wing steel column expands aerofoil profile suspension column and construction technology thereof |
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| CN104947706A true CN104947706A (en) | 2015-09-30 |
| CN104947706B CN104947706B (en) | 2016-11-23 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105350562A (en) * | 2015-11-18 | 2016-02-24 | 中国航空规划设计研究总院有限公司 | Inserting type column leg with accurate leveling device and construction method of inserting type column leg |
| CN109779235A (en) * | 2019-01-28 | 2019-05-21 | 中国五冶集团有限公司 | For the embedded parts structure in big special-shaped component installation combined type support system |
| CN112575963A (en) * | 2020-12-15 | 2021-03-30 | 沈阳铝镁设计研究院有限公司 | Steel construction column foot rigid connection node conversion structure |
| CN113833110A (en) * | 2021-09-14 | 2021-12-24 | 中建八局西南建设工程有限公司 | Arc-shaped flange cross column steel embedded part and construction method thereof |
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| JPH1018300A (en) * | 1996-07-05 | 1998-01-20 | Kumagai Gumi Co Ltd | Method for burying steel frame stud |
| CN202787512U (en) * | 2012-08-17 | 2013-03-13 | 浙江中普建设集团有限公司 | H-shaped steel column leg connecting structure |
| CN202787660U (en) * | 2012-08-17 | 2013-03-13 | 浙江凯邦建设有限公司 | Embedded column base connecting structure of H-shaped steel column |
| CN103161223A (en) * | 2011-12-08 | 2013-06-19 | 贵阳铝镁设计研究院有限公司 | Anti-pulling embedded-type gate-type steel frame steel-joint column foot and construction method thereof |
| CN203603371U (en) * | 2013-09-02 | 2014-05-21 | 中国石化工程建设有限公司 | Furnace bottom closed combined cross-section steel column structure for ethylene cracking furnace |
| CN204780978U (en) * | 2015-07-08 | 2015-11-18 | 黄冀卓 | Narrow edge of a wing steel column expands wing section column base |
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2015
- 2015-07-08 CN CN201510396076.5A patent/CN104947706B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH1018300A (en) * | 1996-07-05 | 1998-01-20 | Kumagai Gumi Co Ltd | Method for burying steel frame stud |
| CN103161223A (en) * | 2011-12-08 | 2013-06-19 | 贵阳铝镁设计研究院有限公司 | Anti-pulling embedded-type gate-type steel frame steel-joint column foot and construction method thereof |
| CN202787512U (en) * | 2012-08-17 | 2013-03-13 | 浙江中普建设集团有限公司 | H-shaped steel column leg connecting structure |
| CN202787660U (en) * | 2012-08-17 | 2013-03-13 | 浙江凯邦建设有限公司 | Embedded column base connecting structure of H-shaped steel column |
| CN203603371U (en) * | 2013-09-02 | 2014-05-21 | 中国石化工程建设有限公司 | Furnace bottom closed combined cross-section steel column structure for ethylene cracking furnace |
| CN204780978U (en) * | 2015-07-08 | 2015-11-18 | 黄冀卓 | Narrow edge of a wing steel column expands wing section column base |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105350562A (en) * | 2015-11-18 | 2016-02-24 | 中国航空规划设计研究总院有限公司 | Inserting type column leg with accurate leveling device and construction method of inserting type column leg |
| CN109779235A (en) * | 2019-01-28 | 2019-05-21 | 中国五冶集团有限公司 | For the embedded parts structure in big special-shaped component installation combined type support system |
| CN112575963A (en) * | 2020-12-15 | 2021-03-30 | 沈阳铝镁设计研究院有限公司 | Steel construction column foot rigid connection node conversion structure |
| CN113833110A (en) * | 2021-09-14 | 2021-12-24 | 中建八局西南建设工程有限公司 | Arc-shaped flange cross column steel embedded part and construction method thereof |
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| Publication number | Publication date |
|---|---|
| CN104947706B (en) | 2016-11-23 |
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