CN206888243U - A kind of steel core concrete column fire-resistant mechanism - Google Patents
A kind of steel core concrete column fire-resistant mechanism Download PDFInfo
- Publication number
- CN206888243U CN206888243U CN201720423048.2U CN201720423048U CN206888243U CN 206888243 U CN206888243 U CN 206888243U CN 201720423048 U CN201720423048 U CN 201720423048U CN 206888243 U CN206888243 U CN 206888243U
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- Prior art keywords
- fire
- steel
- steel pipe
- bar
- concrete column
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Abstract
The utility model discloses a kind of steel core concrete column fire-resistant mechanism,Including steel core concrete column,Reinforcement mechanism,Fireprotection layer mechanism and drag link mechanism,Steel core concrete column is made up of steel pipe and the first concrete layer being cast in steel pipe,Reinforcement mechanism includes cross bar and montant,Cross bar and montant are connected on the outer wall of steel pipe in decussation,Fire-resistant mechanism includes fire-proof plate and galvanized steel expanded metals,Galvanized steel expanded metals is located at the periphery of steel pipe,Fire-proof plate is connected to the outer end of galvanized steel expanded metals,Drag link mechanism includes draw-in bar,Top cap and outside link,One end of draw-in bar and the outer wall of steel pipe connect,The draw-in bar other end connects top cap,Top cap connects with the inwall of fire-proof plate,Outside link is connected through fire-proof plate with top cap,The second concrete layer is provided between steel pipe and fire-proof plate,The fire-resistant mechanism outside steel core concrete column by adding reinforcement mechanism and fireprotection layer mechanism,The overall intensity of steel core concrete column and fire protecting performance are greatly improved.
Description
Technical field
It the utility model is related to structural engineering field, and in particular to a kind of steel core concrete column fire-resistant mechanism.
Background technology
Modern construction engineering is to the material of building and the requirement more and more higher of building structure.To adapt to modern project structure
Arisen at the historic moment across, towering, heavily loaded and severe use environment demand, concrete filled steel tube greatly.Concrete filled steel tube fills
Point make use of the superior tensile property of steel and the superior compressive property of concrete so that concrete filled steel tube energy
More preferable architectural characteristic is enough given play to.But material property of the steel under high temperature of fire particularly mechanical property has a significant impact,
When temperature is more than 550 DEG C, general structural steel will lose most of strength and stiffness.During fire, the temperature half of architecture indoor is small
When it is interior can reach 800~1200 DEG C, therefore steel construction and steel-concrete structure are highly prone to damage in a fire.
In most cases, to improve the fire-resistance capacity of steel construction needs to take measurements for fire-protection, so as to by steel construction
Fire endurance brings up to limit range as defined in design specification.Steel construction is prevented to be brought rapidly up deforming in a fire collapsing.
The main method for improving Fire-Resistance of Steel Structures has：(1) water-cooled valve.This method has special requirement to structure design, and application is less.
(2) one side screen method.Back-fire relief barrier is set in steel construction counter-fire face, is usually used in privileged sites.(3) casting concrete or build by laying bricks or stones
Refractory brick.Steel member is completely enclosed using concrete or refractory brick, but it is cumbersome to construct.(4) fire-resistant light sheet material conduct is used
Fire prevention surrounding layer.Space-consuming is few, comprehensive cost low.(5) fireproof coating is smeared.Fireproof coating is coated on steel surface, applied
Work is easy, in light weight, fire resistance period length, and not present by steel member geometries, has preferable economy and practicality.
The most widely used at present is exactly fireproof coating, but its application property is poor and some other existing insufficient, causes fire prevention to be imitated
Fruit is not best.
Once high-rise building with fire disaster, the condition of a fire can not be excluded in the short time, this requires us in design-build
Increase the purpose for building fireproof degree of protection, reaching and strengthening its fire endurance.
Utility model content
The purpose of this utility model is to provide a kind of steel core concrete column fire-resistant mechanism, and the fire-resistant mechanism passes through in steel pipe
Reinforcement mechanism and fireprotection layer mechanism are added outside concrete column, the overall intensity of steel core concrete column and fire protecting performance have obtained pole
Big raising.
To achieve these goals, the technical solution of use is the utility model：
A kind of steel core concrete column fire-resistant mechanism, including steel core concrete column, reinforcement mechanism, fireprotection layer mechanism and pull bar
Mechanism, steel core concrete column are made up of steel pipe and the first concrete layer for being cast in steel pipe, reinforcement mechanism include cross bar and
Montant, cross bar and montant are connected on the outer wall of steel pipe in decussation, and fire-resistant mechanism includes fire-proof plate and galvanized steel expanded metals,
Galvanized steel expanded metals is located at the periphery of steel pipe, and fire-proof plate is connected to the outer end of galvanized steel expanded metals, and drag link mechanism includes draw-in bar, top cap
And outside link, one end of draw-in bar and the outer wall of steel pipe connect, the draw-in bar other end connects the inwall of top cap, top cap and fire-proof plate
Connect, outside link is connected through fire-proof plate with top cap, and the second concrete layer is provided between steel pipe and fire-proof plate.
Preferably, the drag link mechanism has multiple, and the first groove and second recessed is had in the both ends of the surface of the top cap
Groove, one end of draw-in bar and the outer wall of steel pipe connect, the draw-in bar other end and the first groove grafting.
Preferably, the outside link includes pin, block, the body of rod and pull bar handle, by block connecting-rod body on pin,
Cylinder lever connecting rod handle on the body of rod, is provided with sheet material positioning hole on the fire-proof plate, pin pass through after sheet material positioning hole with the second groove
Grafting.
Preferably, the cross bar and montant are made by the steel plate of strip, and cross bar is welded on the outer wall of steel pipe, montant
It is welded on the outer end of cross bar.
Preferably, the cross bar and montant have multiple, and above-below direction of multiple cross bars along steel pipe be arranged in parallel successively, more
Left and right directions of the individual montant along steel pipe be arranged in parallel successively.
Preferably, multiple hooks are connected with the inner face of the fire-proof plate, hook and fire-proof plate are crossed by galvanized steel plain sheet Netcom
It is connected.
Another object of the present utility model is to provide a kind of construction using above-mentioned steel core concrete column fire-resistant mechanism and connected
Method, the construction connection method causes the construction more handy and safe of steel core concrete column fire-resistant mechanism, more enough to realize steel tube concrete
The more efficient quickly construction connection of earth pillar fire-resistant mechanism.
The beneficial effects of the utility model are：
Above-mentioned steel core concrete column fire-resistant mechanism, reinforcement machine is set in the outer end of common steel core concrete column first
Structure, the tensile strength of steel core concrete column is added, while cross bar and montant are easier to weld made of elongate steel plate, carry
Convenience during high fire-resistant mechanism overall processing.Secondly periphery is positioned in reinforcement mechanism to set by fire-proof plate and galvanized steel plain sheet
Fire-resistant mechanism made of net, the second concrete layer is then poured between reinforcement mechanism and fire-resistant mechanism, improve steel pipe and mix
The overall intensity of solidifying earth pillar, and fire-resistant mechanism can effectively prevent fires.
By the setting of drag link mechanism, the connection positioning of reinforcement mechanism and fire-resistant mechanism is greatly improved, is being poured
During the second concrete layer, this split type design of draw-in bar, top cap and outside link, fire-resistant mechanism bearing is being effectively improved
The combination of convenience, draw-in bar and top cap can position to fire-resistant mechanism, and when pouring the second concrete layer, outside link can
The design of extraction, not only make it that draw-in bar and top cap positioning are more accurate, and also improve the overall recycling of drag link mechanism,
I.e. outside link is reusable.
Steel core concrete column fire-resistant mechanism of the present utility model can significantly improve the fire resisting pole of rectangular steel-tube concrete column
Limit, latticed reinforcement mechanism can prevent steel pipe walls local buckling so that Stability Analysis of Structures；Fire-proof board is used into galvanized steel
Directly as template after expanded metals reinforcing, reduce form removal procedure division process, it is easy for construction reliable.
Brief description of the drawings
Fig. 1 is steel core concrete column fire-resistant mechanism overall structure schematic cross-sectional view.
Cross section structure diagram when Fig. 2 is the installation of steel core concrete column fire-resistant mechanism overall structure.
Fig. 3 is steel core concrete column, reinforcement mechanism and drag link mechanism attachment structure schematic diagram.
Fig. 4 is drag link mechanism overall structure diagram.
Fig. 5 is drag link mechanism overall structure decomposing schematic representation.
Fig. 6 is drag link mechanism overall structure isometric decomposition texture schematic diagram.
Embodiment
The utility model is described in detail below in conjunction with the accompanying drawings：
With reference to Fig. 1 to Fig. 6, a kind of steel core concrete column fire-resistant mechanism, including steel core concrete column 1, reinforcement mechanism 2,
Fireprotection layer mechanism 3 and drag link mechanism 4.Steel core concrete column 1 is by steel pipe 11 and the first concrete layer 12 being cast in steel pipe 11
Composition, the first concrete layer 12 are made up of cement concrete.Steel pipe 11 can be welded by four steel plates in cuboid, or
It is that steel pipe 1 directly uses the rectangular steel tube used in the prior art or cylinder steel pipe.
Reinforcement mechanism 2 includes cross bar 21 and montant 22, and cross bar 21 and montant 22 are connected to steel pipe 11 in decussation
Outer wall on.Cross bar 21 and montant 22 are made by elongate steel plate, and cross bar 21 is welded on the outer wall of steel pipe 11, and montant 22 welds
It is connected on the outer end of cross bar 21.Cross bar 21 and montant 22 have multiple, and when cross bar 21 and montant 22 weld, multiple cross bars 21 are along steel
The above-below direction of the outer wall of pipe 11 is be arranged in parallel successively, and the left and right directions of outer wall of multiple montants 22 along steel pipe 11 is parallel successively to be set
Put.
Fire-resistant mechanism 3 includes fire-proof plate 31 and galvanized steel expanded metals 32, and galvanized steel expanded metals 32 is located at the outer end of steel pipe 11, fire prevention
Plate 31 is connected to the outer end of galvanized steel expanded metals 32.Be connected with multiple hooks on the inner face of fire-proof plate 31, fire-proof plate 31 with it is zinc-plated
When expanded metal lath 32 connects, galvanized steel expanded metals 32 is positioned in fire-proof plate by hook.
Drag link mechanism 4 has multiple, and drag link mechanism 4 includes draw-in bar 41, top cap 42 and outside link 43, one end of draw-in bar 41
It is connected with the outer wall of steel pipe 11, the other end of draw-in bar 41 connection top cap 42, top cap 42 connects with the inwall of fire-proof plate 31, outside link
43 are connected through fire-proof plate 31 with top cap 42, and the second concrete layer 5 is provided between steel pipe 11 and fire-proof plate 31.
Top cap 42 is in round table-like, and the both ends of top cap 42 are provided with the first groove 421 and the second groove 422, draw-in bar 41 and top
Cap 42 is made up of metal material, and one end of draw-in bar 41 can weld, the other end of draw-in bar 41 in connection with the outer wall of steel pipe 11
With the grafting of the first groove 421, the fastness connected for guarantee draw-in bar 41, after the grafting of 41 and first groove of draw-in bar 421, interior drawing
Bar 41 welds with top cap 42.
Outside link 43 includes pin 431, block 432, the body of rod 433 and pull bar handle 434, and pin 431 is connected by block 432
Extension bar body 433, cylinder lever connecting rod handle 434 on the body of rod 433.Sheet material positioning hole is provided with fire-proof plate 31, pin 431 is determined through sheet material
Behind the hole of position, the grafting of 431 and second groove of pin 422.Block 432 is in round table-like, and the radius value of the end face of block 432 is more than sheet material
The aperture of positioning hole, after 431 and second 422 grafting of groove of pin, block 432 is connected to the outer end of fire-proof plate 31.When interior drawing
During 41 and first 421 grafting of groove of bar, in order to facilitate the grafting of draw-in bar 41, draw-in bar 41 is by being arranged on the first of its top
The grafting of 435 and first groove of inserting column 421.When 431 and second 422 grafting of groove of pin, in order to facilitate the grafting of pin 431,
Pin 431 is by being arranged on the second inserting column 436 and the grafting of the second groove 422 on its top.
A kind of above-mentioned steel core concrete column fire-resistant mechanism, construction specifically include following steps when connecting：
The first step, there is provided the tie 6 of the smooth scraper plate of the concrete, the concrete that use in the prior art and formwork,
Concrete is formed by the stirring of cement, water and sandy soil.Concreting forms the first concrete layer in steel pipe 11 and in steel pipe
12, use scraper plate to strike off the upper end of the first concrete layer 12 and cause the upper of upper surface and the steel pipe 11 of the first concrete layer 12
End face is parallel.First upper surface of concrete layer 12 and be arrangeding in parallel for the upper surface of steel pipe 11, ensure that steel core concrete column 1
After interior first concrete layer 12 solidification, convenience that the column of steel core concrete column 1 uses.
Second step, after the first concrete layer 12 solidification in steel core concrete column 1, the steel core concrete column 1 of column is perpendicular
The ground directly placed, then by the cross bar 21 of multiple elongate steel plates by groove welding on the outer wall of steel pipe.Welding
After cross bar 21, the montant 22 of multiple elongate steel plate shapes is then welded on the outer end of cross bar 21, now cross bar 21 and montant 22 are handed over
Misphase connects so that reinforcement mechanism 2 is in latticed.Then one end of draw-in bar 41 is welded on cross bar 21 and the X-shape of montant 22
Into space inner side steel pipe 11 outer wall on, the other end of draw-in bar 41 is plugged in the first groove 421 in top cap 42,
I.e. top cap 42 is enclosed on draw-in bar 41.
3rd step, when fireprotection layer mechanism 3 is installed, galvanized steel plain sheet 32 is first trapped among to the outer end of steel pipe 11, galvanized steel plain sheet 32
Weld at both ends.Then fire-proof plate 31 is trapped among to the outer end of galvanized steel plain sheet, the both ends riveting of fire-proof plate 31, the inner extension of fire-proof plate 31
Hook at the mesh of galvanized steel plain sheet 32 with mounting.Now top cap 42 connects through the mesh of galvanized steel plain sheet 32 with fire-proof plate 31, then
Rotate fire-proof plate 31 so that the center axle position of the central shaft of the sheet material positioning hole of fire-proof plate 31 and the second groove 422 of top cap 42
In in same horizontal line.
4th step, the pin 431 of outside link 43 is plugged in sheet material positioning hole, now pin 431 positions through sheet material
The grafting of the second groove 422 of hole and top cap 42, then using high-temperature agglomerant by galvanized steel plain sheet 32 and the adhesion of fire-proof plate 31, then
Tie 6 is added in the periphery of fire-proof plate 31, during formwork entirety, tie 6 plays a part of support positioning.
5th step, by the concreting that cement mixing forms between steel pipe 11 and fire-proof plate 31, now draw-in bar 41,
Obtained outside steel pipe 11 and fire-proof plate 31 outside top cap 42 and galvanized steel expanded metals 32 in space filled with concrete and the second coagulation of formation
Soil layer 5, the upper end of the second concrete layer 5 is struck off using scraper plate so that the upper surface of the second concrete layer 5 and the upper end of steel pipe 11
Face mutually maintains an equal level.
6th step, after the second concrete layer reaches strength of mould stripping, the pull bar handle 434 of outside link 43 is held, by outer drawing
Bar 43 is pulled out, and then removes tie 6, and cement mortar is then injected in sheet material positioning hole by existing slip casting machine, is completed anti-
The construction construction of lighter structure.Outside link 43 is pulled out, now sheet material positioning hole is hollow, injection concrete in sheet material positioning hole.
Certainly, it is to be also not limited to the example above to limitation of the present utility model, the utility model that described above, which is not,
The variations, modifications, additions or substitutions that those skilled in the art are made in essential scope of the present utility model, also should
Belong to the scope of protection of the utility model.
Claims (6)
1. a kind of steel core concrete column fire-resistant mechanism, it is characterised in that including steel core concrete column, reinforcement mechanism, fireprotection layer
Mechanism and drag link mechanism, steel core concrete column are made up of steel pipe and the first concrete layer being cast in steel pipe, reinforcement mechanism
Including cross bar and montant, cross bar and montant are connected on the outer wall of steel pipe in decussation, fire-resistant mechanism include fire-proof plate and
Galvanized steel expanded metals, galvanized steel expanded metals are located at the periphery of steel pipe, and fire-proof plate is connected to the outer end of galvanized steel expanded metals, and drag link mechanism includes
The outer wall of draw-in bar, top cap and outside link, one end of draw-in bar and steel pipe connects, draw-in bar other end connection top cap, top cap with
The inwall of fire-proof plate connects, and outside link is connected through fire-proof plate with top cap, and the second concrete is provided between steel pipe and fire-proof plate
Layer.
2. a kind of steel core concrete column fire-resistant mechanism according to claim 1, it is characterised in that the drag link mechanism has more
It is individual, the first groove and the second groove are had in the both ends of the surface of the top cap, one end of draw-in bar and the outer wall of steel pipe connect,
The draw-in bar other end and the first groove grafting.
3. a kind of steel core concrete column fire-resistant mechanism according to claim 2, it is characterised in that the outside link includes pin
Post, block, the body of rod and pull bar handle, by block connecting-rod body on pin, cylinder lever connecting rod handle on the body of rod, on the fire-proof plate
Be provided with sheet material positioning hole, pin pass through after sheet material positioning hole with the second groove grafting.
4. a kind of steel core concrete column fire-resistant mechanism according to claim 1, it is characterised in that the cross bar and montant are equal
It is made up of the steel plate of strip, cross bar is welded on the outer wall of steel pipe, and montant is welded on the outer end of cross bar.
5. a kind of steel core concrete column fire-resistant mechanism according to claim 4, it is characterised in that the cross bar and montant are equal
Have multiple, above-below direction of multiple cross bars along steel pipe be arranged in parallel successively, and left and right directions of multiple montants along steel pipe is parallel successively
Set.
A kind of 6. steel core concrete column fire-resistant mechanism according to claim 1, it is characterised in that the inner of the fire-proof plate
Multiple hooks are connected with face, galvanized steel plain sheet Netcom crosses hook and is connected with fire-proof plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720423048.2U CN206888243U (en) | 2017-04-21 | 2017-04-21 | A kind of steel core concrete column fire-resistant mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720423048.2U CN206888243U (en) | 2017-04-21 | 2017-04-21 | A kind of steel core concrete column fire-resistant mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206888243U true CN206888243U (en) | 2018-01-16 |
Family
ID=61323368
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720423048.2U Expired - Fee Related CN206888243U (en) | 2017-04-21 | 2017-04-21 | A kind of steel core concrete column fire-resistant mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206888243U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109537809A (en) * | 2019-01-17 | 2019-03-29 | 徐州中煤汉泰建筑工业化有限公司 | A kind of assembled architecture steel structure support column and its construction method |
-
2017
- 2017-04-21 CN CN201720423048.2U patent/CN206888243U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109537809A (en) * | 2019-01-17 | 2019-03-29 | 徐州中煤汉泰建筑工业化有限公司 | A kind of assembled architecture steel structure support column and its construction method |
| CN109537809B (en) * | 2019-01-17 | 2024-04-16 | 徐州中煤汉泰建筑工业化有限公司 | Steel structure supporting upright post for assembled building and construction method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180116 Termination date: 20200421 |