CN101311481B - Steel column foot reinforced structure - Google Patents
Steel column foot reinforced structure Download PDFInfo
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- CN101311481B CN101311481B CN2007102007128A CN200710200712A CN101311481B CN 101311481 B CN101311481 B CN 101311481B CN 2007102007128 A CN2007102007128 A CN 2007102007128A CN 200710200712 A CN200710200712 A CN 200710200712A CN 101311481 B CN101311481 B CN 101311481B
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Abstract
The invention discloses a reinforcing structure of a steel column base, including a steel column, a side stiffening rib plate, a middle stiffening rib plate, a column base bottom plate and a column base bolt. A rigid cover plate is arranged between two pieces of I-shaped steel of the steel column (1); anchor reinforcing steel bars are welded on the lower surface of the rigid cover plate; concreteis cast between the steel column, the column base bottom plate and the rigid cover plate; auxiliary trabeculars are respectively welded on the upper surface of the rigid cover plate and the column base flange or/and the web of the steel column. The diameters d2 of the anchor reinforcing steel bars (6) are 16mm to 20mm and the space between the anchor reinforcing steel bars (6) is 150mm. The gradeof the concrete (5) is higher than C20. The four sides of the rigid cover plate all reserve a clearance of 15mm with the column base. The rigid cover plate is provided with two grout holes. The anchor reinforcing steel bars of the invention increase the bond force of the concrete and the column base; the rigid cover plate and the auxiliary trabeculars enlarge the rigidness of the bottom plate, thereby leading the concrete and the column base bottom plate to form a whole body and together resist the bending moment of the column base and having good reinforcing effect.
Description
Technical field
The present invention relates to a kind of steel column foot reinforced structure, use this invention can realize the reinforcing of coupled columns sole simply and effectively.
Background technology
Steel building is because its quick construction, build is light and handy, be applied in the building structure in recent years increasingly extensively, particularly be applied in the factory building structure more, and as the member of the final power transmission of steel structure system, the safety of steel column foot just more seems particularly important, sometimes because design, artificial deviation appears in the construction, or the construction finish after building increased extra load again, and when finding these problems, steel column foot has often been constructed and has been finished, this moment is because suspension column base plate thickness deficiency, its insufficient rigidity is with the bending moment of opposing on the base plate, the base plate distortion that just can be distorted this moment, even destroy, threaten the safety of total, at this moment just must carry out consolidation process suspension column.For the not enough reinforcement measure of suspension column base plate thickness, usually all be on original base plate, to set up the suspension column floor of putting more energy into, reduce the span of base plate with this, thereby reduce the suffered bending moment of base plate, but this method is often because the size of suspension column own is less, or the existing floor of putting more energy into is very close and cause in the construction welding very difficult, brings great difficulty for the construction reinforcement, is not easy to implement.
Fig. 1, flat, the section that is respectively the suspension column full-page proof of traditional steel work shown in Figure 2, steel column 1 is made up of two i shaped steels, side put more energy into floor 2 and intermediate stiffener plate 3 are arranged on suspension column base plate 4, and suspension column base plate 4 and the side floor 2 of putting more energy into also is connected by suspension column bolt 7.When running into the base plate thickness deficiency and need reinforcement,, promptly increase the base plate number of ribs of putting more energy into if adopt traditional reinforcement means.As can be seen from the figure, because floor is overstocked, during construction, the floor that welds these increases can be very difficult, and in addition owing to the length that increases weld seam is very long, also easy the generation than big welding stress causes bottom deformation.
Summary of the invention
The technical problem to be solved in the present invention is: have constructional difficulties and the long weak point of welding deformation greatly that easily produces of weld seam at traditional reinforcement measure when solution suspension column base plate strength is not enough, propose a kind of new steel column foot reinforced structure, can more simply and effectively be reinforced base plate.
The present invention constitutes like this: it comprises steel column, side put more energy into floor, intermediate stiffener plate, suspension column base plate, suspension column bolt, between two i shaped steels of steel column, rigid cover plate is set, weld anchor draws reinforcing bar below rigid cover plate, concreting between steel column, suspension column base plate and rigid cover plate, two limbs of auxiliary girder are welded on the suspension column edge of a wing of top and steel column of rigid cover plate respectively or/and on the web.
It is 16mm～20mm that anchor draws the diameter of reinforcing bar, and spacing is 150mm.
Concrete grade is more than C20.
The slit of 15mm is all reserved on four limits of rigid cover plate with suspension column.
Rigid cover plate is provided with two grout holes, and the diameter of grout hole is 40mm～60mm, and two grout holes are arranged at the cornerwise two ends of rigid cover plate, apart from side edge thereof 〉=2 times grout hole diameter.
Auxiliary girder adopts angle steel to make, and the cross section generally is taken as L56mm～L75mm.
Anchor among the present invention draws reinforcing bar to increase the adhesion stress of concrete and suspension column greatly, rigid cover plate and auxiliary girder have then increased base plate rigidity, thereby make concrete and suspension column base plate form one, common opposing suspension column bending moment, thereby can play good consolidation effect, thereby the difficulty that has been occurred in the construction when having avoided adopting traditional reinforcing mode has also reduced the bottom deformation that welding stress that traditional reinforcing mode causes to base plate causes.And the present invention is more simple and easy to do, strong operability.
Description of drawings
Fig. 1 is traditional steel column pin schematic diagram, vertical view;
Fig. 2 is that Fig. 1 is along its A-A line sectional drawing;
Fig. 3 is structural representation of the present invention, vertical view;
Fig. 4 is the sectional drawing of Fig. 3 along its B-B line.
Fig. 5 is the structural representation of rigid cover plate 6.
The specific embodiment
Embodiments of the invention:, can carry out as follows when adopting reinforced column sole of the present invention as Fig. 3, Fig. 4, shown in Figure 5:
The first, the paint and the iron rust of steel surface in the suspension column scope are thoroughly removed totally, can add the adhesion stress of reinforced concrete and suspension column like this;
Second, between two i shaped steels of steel column 1, set up rigid cover plate 6, for guaranteeing that this cover plate has enough rigidity, unlikelyly under load action, deform, its thickness of section should be enough big, general its thickness is identical with the suspension column base plate thickness, the slit of 15mm is all reserved so that install with suspension column in four limits of cover plate, this rigid cover plate should be reserved two grout holes 10 in advance, the diameter of grout hole is 40mm～60mm, two grout holes are arranged at the cornerwise two ends of cover plate, apart from side edge thereof 〉=2 times grout hole diameter; In addition, the another side of rigid cover plate should weld anchor in advance and draw reinforcing bar 9, it is 16mm～20mm that anchor draws bar diameter, spacing is 150mm, and for increasing adhesion stress, dowel should adopt figuratum II grade reinforcing steel, the length of dowel is 20 times that anchor draws bar diameter, when if this length fails to lay down greater than the suspension column height, can be bent growing part, make the dowel that an end has crotch;
The 3rd, above-mentioned cover plate is placed between the suspension column, the grout hole 10 from cover plate is built pea gravel concreten 5 in the suspension column spatial dimension, concrete grade should not be lower than C20, for guaranteeing that compactness should adopt pressure grouting, till having concrete grout to overflow, illustrate that concrete irritated real compact close this moment;
The 4th, treat that concrete coagulation is finished after, the auxiliary girder of welding, girder adopt angle steel to make, the cross section generally is taken as L56mm～L75mm, a limb of angle steel and cover plate welding, another limb and the suspension column edge of a wing or/and web weld;
The 5th, add the strong steel plate of soldering at the grout hole place, the steel plate size is 80 * 80, thickness is 12mm.
Claims (6)
1. steel column foot reinforced structure, it comprises steel column (1), side put more energy into floor (2), intermediate stiffener plate (3), suspension column base plate (4), suspension column bolt (7), it is characterized in that: between two i shaped steels of steel column (1), rigid cover plate (6) is set, weld anchor draws reinforcing bar (9) below rigid cover plate (6), concreting (5) between steel column (1), suspension column base plate (4) and rigid cover plate (6), two limbs of auxiliary girder (8) are welded on the suspension column edge of a wing of top and steel column (1) of rigid cover plate (6) respectively or/and on the web.
2. steel column foot reinforced structure according to claim 1 is characterized in that: it is 150mm that anchor draws the spacing of reinforcing bar (9), and diameter is 16mm～20mm.
3. steel column foot reinforced structure according to claim 1 is characterized in that: the grade of concrete (5) is more than C20.
4. steel column foot reinforced structure according to claim 1 is characterized in that: the slit of 15mm is all reserved on four limits of rigid cover plate (6) with suspension column.
5. steel column foot reinforced structure according to claim 1, it is characterized in that: rigid cover plate (6) is provided with two grout holes, the diameter of grout hole is 40mm～60mm, and two grout holes are arranged at the cornerwise two ends of rigid cover plate (6), apart from side edge thereof 〉=2 times grout hole diameter.
6. steel column foot reinforced structure according to claim 1 is characterized in that: auxiliary girder (8) adopts angle steel to make, and the cross section value is L56mm～L75mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007102007128A CN101311481B (en) | 2007-05-25 | 2007-05-25 | Steel column foot reinforced structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007102007128A CN101311481B (en) | 2007-05-25 | 2007-05-25 | Steel column foot reinforced structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101311481A CN101311481A (en) | 2008-11-26 |
| CN101311481B true CN101311481B (en) | 2010-06-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007102007128A Expired - Fee Related CN101311481B (en) | 2007-05-25 | 2007-05-25 | Steel column foot reinforced structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN101311481B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI123244B (en) * | 2010-10-26 | 2013-01-15 | Peikko Group Oy | Column Shoe |
| CN102182244A (en) * | 2011-03-30 | 2011-09-14 | 同济大学 | Double-column residential steel structure |
| CN102352694B (en) * | 2011-09-13 | 2013-09-04 | 浙江大学 | Reinforcing method for steel structural column |
| CN102828577B (en) * | 2012-08-28 | 2014-12-03 | 上海勘测设计研究院 | Steel pipe column base connecting structure and mounting method thereof |
| CN102839601A (en) * | 2012-09-11 | 2012-12-26 | 天津市市政工程设计研究院 | Fixed connection structure for steel pier column and cushion cap of portal rigid frame overbridge and construction method of fixed connection structure |
| CN103981955B (en) * | 2014-06-03 | 2016-08-17 | 上海域邦建设工程有限公司 | For new and old buildings capital, the docking facilities of suspension column docking and docking calculation |
| CN107700517B (en) * | 2017-09-13 | 2019-04-16 | 云南建投钢结构股份有限公司 | A kind of boots beam type foot joint component for tubular pillar |
| CN111702362A (en) * | 2020-05-25 | 2020-09-25 | 中国建筑第八工程局有限公司 | Welding method and welding structure of steel pipe column internal stiffening plate and bottom plate support |
-
2007
- 2007-05-25 CN CN2007102007128A patent/CN101311481B/en not_active Expired - Fee Related
Non-Patent Citations (3)
| Title |
|---|
| 刘忠,张少华.浅谈钢结构的加固.林业科技情报36 3.2004,36(3),18-19. |
| 刘忠,张少华.浅谈钢结构的加固.林业科技情报36 3.2004,36(3),18-19. * |
| 赵熙元主编.建筑钢结构设计手册 上册.冶金工业出版社,1995,435. * |
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| Publication number | Publication date |
|---|---|
| CN101311481A (en) | 2008-11-26 |
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Owner name: GUIYANG ALUMINUM AND MAGNESIUM DESIGN INSTITUTE CO Free format text: FORMER NAME: GUIYANG ALUMINIUM AND MAGNESIUM DESIGN INST. |
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Address after: 550081 Guiyang Province, Jinyang New District, Zhu Zhu Road, No. 2 Patentee after: Guiyang Aluminum & Magnesium Design Institute Co., Ltd. Address before: 550004 No. 208, Beijing Road, Guiyang, Guizhou Patentee before: Guiyang Aluminium and Magnesium Design Inst. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100616 Termination date: 20150525 |
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