CN107630460A - A kind of new steel construction hinged column base node - Google Patents
A kind of new steel construction hinged column base node Download PDFInfo
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- CN107630460A CN107630460A CN201710602220.5A CN201710602220A CN107630460A CN 107630460 A CN107630460 A CN 107630460A CN 201710602220 A CN201710602220 A CN 201710602220A CN 107630460 A CN107630460 A CN 107630460A
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Abstract
The invention discloses a kind of new steel construction hinged column base node, belong to steel structure connection field.The hinged column base node includes Reinforced Concrete Short Column；Steel column foot bottom plate；The steel column foot bottom plate is fixedly connected in the Reinforced Concrete Short Column by crab-bolt；And it is arranged on the rubber blanket between the Reinforced Concrete Short Column and the steel column foot bottom plate.The present invention increases by one layer of rubber blanket to discharge the moment of flexure at foot joint by the bottom surface of the steel column foot bottom plate in rigid connection foot joint, rigid connection foot joint is transformed into a kind of new steel construction hinged column base node, it is subjected only to axle power and vertical steel shaft along steel column axial direction to the horizontal shear in direction, avoid foot joint from bearing moment of flexure and influence the firm of attachment structure.Meanwhile the steel construction hinged column base node in the present invention using relatively small number of steel can meet demand, the steel construction dosage of foot joint can be reduced on the whole, save construction costs.
Description
Technical field
The present invention relates to steel structure connection field, more particularly to a kind of new steel construction hinged column base node.
Background technology
Steel construction has high-strength light, speed of application fast and many advantages, such as the cycle is short, is widely used work at present
In industry and civil buildings.The node of the Reinforced Concrete Short Column of steel construction and its underpart connection is referred to as steel construction foot joint.Steel
Structure foot joint is divided into hinged column base node and rigid connection foot joint by stress performance.
The attachment structure of steel construction foot joint generally comprises steel column foot bottom plate 2 and (is connected with steel column foot bottom plate 2
Steel column 3 and ribbed stiffener 4, Reinforced Concrete Short Column 1 and for steel column foot bottom plate 2 to be fixedly connected on into Reinforced Concrete Short Column
Crab-bolt 5 on 1.Wherein, shown in attachment structure such as Fig. 1 (a) and Fig. 1 (b) of traditional hinged column base node, used crab-bolt
5 negligible amounts and distribution concentration so that hinged column base node is subjected only to axle power and vertical steel shaft along steel column axial direction
To the horizontal shear in direction；Shown in attachment structure such as Fig. 2 (a) and Fig. 2 (b) of traditional rigid connection foot joint, used anchor
The quantity of bolt 5 is relatively more and more scattered so that rigid connection foot joint except bear along steel column axial direction axle power and hang down
Outside the horizontal shear of straight steel column axial direction, the moment of flexure around shearing direction is still suffered from.Hinged column base node have power transmission clearly,
Calculating is simple, saves many advantages, such as foot joint steel construction dosage, and foot joint is designed to be hinged by Steel Structural Design often
Foot joint.However, when the place where building is high intensity Zone, structure will be used to by very big earthquake during earthquake
Property power, and then larger uplift force and moment of flexure can be produced at steel construction foot joint, uplift force and moment of flexure can cause suspension column section
Point needs to arrange more crab-bolt, so as to can not directly use traditional hinged column base node connecting structure, need to use rigid connection post
Pin node is designed.
During the present invention is realized, the inventors discovered that problems with the prior art at least be present：Using rigid connection
When foot joint is attached steel construction with Reinforced Concrete Short Column, steel are added due to needing to use more crab-bolt
Dosage, and then add construction costs；Simultaneously larger moment of flexure itself can impact to rigid connection foot joint and be unfavorable for connecting
Binding structure consolidates.
The content of the invention
In order to solve above-mentioned technical problem, the present invention provides a kind of new steel construction hinged column base node.
Specifically, including following technical scheme：
A kind of new steel construction hinged column base node, including：
Reinforced Concrete Short Column；
Steel column foot bottom plate；Steel column and ribbed stiffener are connected with the steel column foot bottom plate；And the steel column foot bottom plate
It is fixedly connected on by crab-bolt in the Reinforced Concrete Short Column；And
The rubber blanket being arranged between the Reinforced Concrete Short Column and the steel column foot bottom plate.
The rubber blanket has and the steel column foot bottom plate identical shape.
Further, the thickness of the rubber blanket is between 55mm-65mm.
Preferably, the thickness of the rubber blanket is 60mm.
Further, the crab-bolt is evenly distributed on the edge of the steel column foot bottom plate.
Preferably, the quantity of the crab-bolt is 10.
Preferably, the steel column is I-shaped that the steel column and the ribbed stiffener are vertically connected on the steel column foot
On bottom plate.
Preferably, the quantity of the ribbed stiffener is six, and ribbed stiffener described in two of which is arranged on the web of the steel column
Both sides, remaining four described ribbed stiffener is arranged on the outside on the edge of a wing of the steel column two-by-two respectively.
The beneficial effect of technical scheme provided in an embodiment of the present invention：Provide a kind of new steel construction hinged column base section
Point.Specifically, the present invention increases by one layer of rubber blanket to discharge post by the bottom surface of the steel column foot bottom plate in rigid connection foot joint
Moment of flexure at pin node, rigid connection foot joint is transformed into a kind of new steel construction hinged column base node, it is subjected only to edge
The axle power of steel column axial direction and vertical steel shaft avoid foot joint from bearing moment of flexure and influence to connect to the horizontal shear in direction
Structure it is firm, meanwhile, steel construction hinged column base node in the present invention using relatively small number of steel can meet demand, can
The steel construction dosage of foot joint is reduced on the whole, saves construction costs.
Brief description of the drawings
Technical scheme in order to illustrate the embodiments of the present invention more clearly, make required in being described below to embodiment
Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for
For those of ordinary skill in the art, on the premise of not paying creative work, other can also be obtained according to these accompanying drawings
Accompanying drawing.
Fig. 1 (a) is the structural representation of traditional hinged column base node；
Fig. 1 (b) is Fig. 1 (a) schematic top plan view；
Fig. 2 (a) is the structural representation of traditional rigid connection foot joint；
Fig. 2 (b) is Fig. 2 (a) schematic top plan view；
Fig. 3 (a) is a kind of structural representation of new steel construction hinged column base node provided in an embodiment of the present invention；
Fig. 3 (b) is Fig. 3 (a) schematic top plan view.
Reference in figure represents respectively：
1st, Reinforced Concrete Short Column；
2nd, steel column foot bottom plate；
3rd, steel column；
4th, ribbed stiffener；
5th, crab-bolt；
6th, rubber blanket.
Embodiment
To make technical scheme and advantage clearer, embodiment of the present invention is made below in conjunction with accompanying drawing into
One step it is described in detail.Unless otherwise defined, all technical terms used in the embodiment of the present invention are respectively provided with and art technology
The identical implication that personnel are generally understood that.
The embodiment of the present invention provides a kind of new steel construction hinged column base node, as shown in Fig. 3 (a) and Fig. 3 (b), bag
Include：Reinforced Concrete Short Column 1；Steel column foot bottom plate 2, steel column 3 and ribbed stiffener 4 are connected with steel column foot bottom plate 2；And steel column post
Sole 2 is fixedly connected in Reinforced Concrete Short Column 1 by crab-bolt 5；And it is arranged on Reinforced Concrete Short Column 1 and steel column post
Rubber blanket 6 between sole 2.
It should be noted that Reinforced Concrete Short Column 1, steel column foot bottom plate 2, steel column 3, ribbed stiffener 4 and crab-bolt 5 are formed just
Foot joint attachment structure is connect, wherein being used to be fixedly connected with steel column foot bottom plate 2 and the anchor of Reinforced Concrete Short Column 1 with multiple
Bolt 5, and crab-bolt 5 is distributed relative distribution, can be evenly distributed on the edge of steel column foot bottom plate 2, quantity of the present invention to crab-bolt 5
There is no considered critical, can be symmetrical arranged according to actual conditions and needs, such as may be configured as 8,10,12 etc.
Deng, it is preferable that it is settable that there are 10 crab-bolts 5.During earthquake, the attachment structure will be by very big Earthquake Inertia Force Acting, can be in steel
Larger uplift force is produced at structure foot joint and moment of flexure, set multiple crab-bolts 5 enable the attachment structure to bear
Larger uplift force.
And during for earthquake at the steel construction foot joint caused by moment of flexure, the present invention is further in above-mentioned rigid connection suspension column
On the bottom surface of the steel column foot bottom plate 2 of node plus one layer of rubber blanket 6, so as to come moment of flexure caused by discharging at foot joint.Specifically
Ground, rubber blanket 6 is arranged on to the bottom of steel column foot bottom plate 2, i.e. rubber blanket 6 is located at Reinforced Concrete Short Column 1 and steel column post
Between sole 2, rubber blanket 6 have with the identical shape of steel column foot bottom plate 2, steel column foot bottom plate 2 can be covered.Due to
Rubber blanket 6 has stronger deformability, local earthquake centre, steel construction suspension column joint rotation (foot joint produces larger moment of flexure)
When, the compression compression deformation of rubber blanket 6, the rotation to foot joint can produce restraint release effect.Because foot joint moment of flexure is released
Put so that foot joint is subjected only to axle power and vertical steel shaft along steel column axial direction to the horizontal shear in direction, realizes
The purpose of hinged column base node.Simultaneously as rubber blanket 6 deforms the moment of flexure for releasing foot joint so that the stress of crab-bolt 5 becomes
It is small, therefore stress needs can be met using the crab-bolt 5 of small diameter, the material of crab-bolt 5 is steel, so suspension column section can be reduced
The steel construction dosage of point；Further, because crab-bolt stress diminishes, then its power acted on steel column foot bottom plate 2 also diminishes,
So that steel column foot bottom plate 2 also reduces to the demand of steel.
The present invention increases by one layer of rubber blanket to discharge suspension column by the bottom surface of the steel column foot bottom plate in rigid connection foot joint
Moment of flexure at node, rigid connection foot joint is transformed into a kind of new steel construction hinged column base node, it is subjected only to along steel
The axle power of post axial direction and vertical steel shaft avoid foot joint from bearing moment of flexure and influence connection knot to the horizontal shear in direction
Structure consolidates, simultaneously as rubber blanket deformation releases the moment of flexure of foot joint so that crab-bolt stress diminishes, and further makes anchor
Bolt and steel column foot bottom plate also reduce to the demand of steel, i.e., the steel construction hinged column base node in the present invention is using relatively
Few steel can meet demand, the steel construction dosage of foot joint can be reduced on the whole, save construction costs.
In above-mentioned steel construction hinged column base node, if the thickness of rubber blanket 6 is too small, under Moment, rubber blanket 6
Deformability it is inadequate, it is difficult to reach release moment of flexure effect；If the thickness of rubber blanket 6 is excessive, axis of a cylinder under load action,
The deformation of rubber blanket is excessive, can cause larger differential settlement between different posts, unfavorable to structure.According to abundant experimental results
Analysis, the thickness of rubber blanket 6 can be set between 55mm-65mm, and 60mm is the more munificent degree of rubber blanket 6 under regular situation.
For special circumstances, should be determined by making a concrete analysis of.
In above-mentioned steel construction hinged column base node, steel column 3 is I-shaped, and steel column 3 and ribbed stiffener 4 are vertically connected on steel
On post column root-plate 2, so that attachment structure stress is evenly.
In above-mentioned steel construction hinged column base node, the quantity of ribbed stiffener 4 is six, and two of which ribbed stiffener 4 is arranged on
The both sides of the web of steel column 3, remaining four ribbed stiffener 4 are arranged on the outside on the edge of a wing of steel column 3 two-by-two respectively.Ribbed stiffener 4 is in steel
It is uniformly distributed on post column root-plate 2, for ensureing the local stability of component and transmitting power for concentrating.
The present invention increases by one layer of rubber blanket to discharge suspension column by the bottom surface of the steel column foot bottom plate in rigid connection foot joint
Moment of flexure at node, rigid connection foot joint is transformed into a kind of new steel construction hinged column base node, it is subjected only to along steel
The axle power of post axial direction and vertical steel shaft avoid foot joint from bearing moment of flexure and influence connection knot to the horizontal shear in direction
Structure consolidates.Simultaneously as rubber blanket deformation releases the moment of flexure of foot joint so that crab-bolt stress diminishes, and further makes anchor
Bolt and steel column foot bottom plate also reduce to the demand of steel, i.e., the steel construction hinged column base node in the present invention is using relatively
Few steel can meet demand, the steel construction dosage of foot joint can be reduced on the whole, save construction costs.
It is described above to be for only for ease of it will be understood by those skilled in the art that technical scheme, not limiting
The present invention.Within the spirit and principles of the invention, any modification, equivalent substitution and improvements made etc., it should be included in this
Within the protection domain of invention.
Claims (8)
- A kind of 1. new steel construction hinged column base node, it is characterised in that including：Reinforced Concrete Short Column (1)；Steel column foot bottom plate (2)；Steel column (3) and ribbed stiffener (4) are connected with the steel column foot bottom plate (2)；And the steel column Column root-plate (2) is fixedly connected in the Reinforced Concrete Short Column (1) by crab-bolt (5)；AndThe rubber blanket (6) being arranged between the Reinforced Concrete Short Column (1) and the steel column foot bottom plate (2).
- 2. steel construction hinged column base node according to claim 1, it is characterised in that the rubber blanket (6) has and institute State steel column foot bottom plate (2) identical shape.
- 3. steel construction hinged column base node according to claim 1, it is characterised in that the thickness of the rubber blanket (6) exists Between 55mm-65mm.
- 4. steel construction hinged column base node according to claim 3, it is characterised in that the thickness of the rubber blanket (6) is 60mm。
- 5. steel construction hinged column base node according to claim 1, it is characterised in that the crab-bolt (5) is evenly distributed on On the edge of the steel column foot bottom plate (2).
- 6. steel construction hinged column base node according to claim 5, it is characterised in that the quantity of the crab-bolt (5) is 10 It is individual.
- 7. steel construction hinged column base node according to claim 1, it is characterised in that the steel column (3) is I-shaped, institute State steel column (3) and the ribbed stiffener (4) is vertically connected on the steel column foot bottom plate (2).
- 8. steel construction hinged column base node according to claim 7, it is characterised in that the quantity of the ribbed stiffener (4) is Six, ribbed stiffener described in two of which (4) is arranged on the both sides of the web of the steel column (3), remaining four ribbed stiffeners (4) It is arranged on the outside on the edge of a wing of the steel column (3) two-by-two respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710602220.5A CN107630460A (en) | 2017-07-21 | 2017-07-21 | A kind of new steel construction hinged column base node |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710602220.5A CN107630460A (en) | 2017-07-21 | 2017-07-21 | A kind of new steel construction hinged column base node |
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| Publication Number | Publication Date |
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| CN107630460A true CN107630460A (en) | 2018-01-26 |
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| CN201710602220.5A Pending CN107630460A (en) | 2017-07-21 | 2017-07-21 | A kind of new steel construction hinged column base node |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108842914A (en) * | 2018-08-08 | 2018-11-20 | 中国恩菲工程技术有限公司 | Steel column foot node |
| CN110106975A (en) * | 2019-05-10 | 2019-08-09 | 中国十九冶集团有限公司 | Girder steel support steel column connecting joint structure |
| CN111075113A (en) * | 2019-12-31 | 2020-04-28 | 清华大学 | Replaceable column base for recoverable functional structure |
| CN111779132A (en) * | 2020-07-15 | 2020-10-16 | 东营鸿圣绿建装配式建筑科技有限公司 | Steel structure assembly type building assembly and manufacturing process thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108842914A (en) * | 2018-08-08 | 2018-11-20 | 中国恩菲工程技术有限公司 | Steel column foot node |
| CN108842914B (en) * | 2018-08-08 | 2024-01-05 | 中国恩菲工程技术有限公司 | Steel column foot node |
| CN110106975A (en) * | 2019-05-10 | 2019-08-09 | 中国十九冶集团有限公司 | Girder steel support steel column connecting joint structure |
| CN111075113A (en) * | 2019-12-31 | 2020-04-28 | 清华大学 | Replaceable column base for recoverable functional structure |
| CN111075113B (en) * | 2019-12-31 | 2021-07-27 | 清华大学 | Replaceable column base for recoverable functional structure |
| CN111779132A (en) * | 2020-07-15 | 2020-10-16 | 东营鸿圣绿建装配式建筑科技有限公司 | Steel structure assembly type building assembly and manufacturing process thereof |
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Application publication date: 20180126 |