CN115506499A - Structure for carrying out fireproof protection on steel column - Google Patents
Structure for carrying out fireproof protection on steel column Download PDFInfo
- Publication number
- CN115506499A CN115506499A CN202211137551.3A CN202211137551A CN115506499A CN 115506499 A CN115506499 A CN 115506499A CN 202211137551 A CN202211137551 A CN 202211137551A CN 115506499 A CN115506499 A CN 115506499A
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- Prior art keywords
- steel column
- rock wool
- steel
- plates
- fireproof
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 104
- 239000010959 steel Substances 0.000 title claims abstract description 104
- 239000011490 mineral wool Substances 0.000 claims abstract description 54
- 238000010276 construction Methods 0.000 claims abstract description 40
- 238000005192 partition Methods 0.000 claims abstract description 32
- 210000001503 joint Anatomy 0.000 claims description 5
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 239000011248 coating agent Substances 0.000 abstract description 15
- 238000000576 coating method Methods 0.000 abstract description 15
- 239000003973 paint Substances 0.000 abstract description 8
- 238000012545 processing Methods 0.000 abstract description 3
- 230000000007 visual effect Effects 0.000 abstract description 3
- 230000002265 prevention Effects 0.000 description 8
- 238000010079 rubber tapping Methods 0.000 description 5
- 238000003466 welding Methods 0.000 description 4
- 241000761557 Lamina Species 0.000 description 3
- 239000003063 flame retardant Substances 0.000 description 3
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002356 single layer Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
Images
Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
- E04B1/94—Protection against other undesired influences or dangers against fire
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
- E04B1/94—Protection against other undesired influences or dangers against fire
- E04B1/941—Building elements specially adapted therefor
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
- E04B1/94—Protection against other undesired influences or dangers against fire
- E04B1/941—Building elements specially adapted therefor
- E04B1/943—Building elements specially adapted therefor elongated
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
- E04B1/94—Protection against other undesired influences or dangers against fire
- E04B1/941—Building elements specially adapted therefor
- E04B1/943—Building elements specially adapted therefor elongated
- E04B1/944—Building elements specially adapted therefor elongated covered with fire-proofing material
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Building Environments (AREA)
Abstract
The application discloses carry out fire protection's structure to steel column, the structure includes baffle, purlin, interior rock wool board and PLASTIC LAMINATED. The baffle is connected in each recess to divide equally into a plurality of cavities that arrange along the length direction of steel column each recess. Purlines are connected around the steel columns and connected with the partition plates. An inner rock wool panel is filled in each chamber. The fireproof plates are wrapped around the steel columns and connected with the purlines. According to the technical scheme, the steel column is prevented from being burnt by the fireproof plate, and the problem that the implementation conditions required by coating thick fireproof paint cannot be met in the low-temperature severe environment in winter is solved. Meanwhile, the fire-proof plate realizes the standardization of all components, and the processing and mounting quality is easier to ensure. The fireproof plate is assembled in a dry mode, and construction standardization requirements are met. The fireproof plate is firmer and safer, the appearance is smooth, and the visual effect is better.
Description
Technical Field
The application relates to the field of construction, especially, relate to a structure of carrying out fire protection to steel column.
Background
The valve hall steel structures of the extra-high voltage direct current transmission project can meet the fire protection requirements of buildings only by adopting fire protection measures. Fire hazard danger of a valve hall is classified into class D, fire resistance grade is two levels, and fire-proof coating protective measures with different thicknesses are adopted at different parts to meet the fire-proof requirements of a steel structure in actual engineering according to the provisions of 'architectural design fire-proof specification' GB 50016.
The fireproof paint for steel column is thick paint, and during construction and before drying and curing of the paint, the environment temperature is maintained at 5-38 deg.c, relative humidity not higher than 85% and air circulation. When the wind speed is more than 5m/s or dew condensation exists on the surface of the component in rainy days, the operation is not suitable. And the fireproof coating has the advantages of more high-altitude operation in construction, high personnel protection requirement, high construction safety risk and difficult guarantee of construction quality.
According to the construction experience of a plurality of projects, the construction conditions in winter are often severe, the construction requirements of the thick fireproof coating cannot be met, the construction cannot be carried out or is inconvenient, and the construction period and the quality are further influenced. Because the steel column is a vertical member, the coating after construction has a downward accumulation phenomenon, and meanwhile, the thick coating has larger component particles, and the finished surface is rough and poor in appearance.
Therefore, the fire protection measures of the steel column which are suitable for the construction conditions in winter need to be researched, a practical and effective standardized design and construction scheme is formed, and the problems that the construction conditions of the steel structure fire-retardant coating in winter do not reach the standard, the construction quality is poor and the thick coating falls off are solved.
Disclosure of Invention
The application provides a structure of carrying out fire protection to steel column can solve steel construction fire retardant coating construction condition not up to standard, construction quality is poor and thick type coating drops the problem winter.
The embodiment of this application provides a structure of carrying out fire protection to steel column, and the steel column has web and two pterygoid lamina, and two pterygoid laminas are perpendicular connection respectively in the both sides of the relative setting of web to inject two recesses. The structure comprises a partition board, purlines, an inner rock wool board and a fireproof board. The baffle is connected in each recess to divide equally into a plurality of cavities that arrange along the length direction of steel column each recess. Purlines are connected around the steel columns and connected with the partition plates. An inner rock wool slab fills each chamber. The fireproof plates are wrapped around the steel columns and connected with the purlines.
In some embodiments, the partition plates include two groups, each group includes a plurality of partition plates, the two groups of partition plates are respectively connected in the two grooves, each partition plate in each group of partition plates is perpendicular to the web plate and each wing plate, and the partition plates are arranged at preset intervals along the length direction of the steel column.
In some embodiments, the purlins comprise four groups, each group comprises a plurality of purlins, the four groups of purlins are respectively connected around the steel column and form an annular structure in a butt joint mode, each purlin in each group is transversely arranged on the steel column, and the purlins are arranged at preset intervals along the length direction of the steel column.
In some embodiments, each purline is provided with a first batten, a second batten and a third batten, the first batten and the third batten are vertically connected to two opposite sides of the second batten respectively, the first batten is connected with the steel column, the second batten is connected with the partition plate, and the third batten is connected with the fireproof plate.
In some embodiments, the inner rock wool boards comprise a plurality of groups, each group comprises a plurality of inner rock wool boards, each group of inner rock wool boards is respectively filled in each cavity, each group of inner rock wool boards is stacked along the depth direction of each cavity, and the edge of each inner rock wool board is tightly squeezed with the peripheral wall of each cavity.
In some of these embodiments, the construction further comprises an outer rock wool panel wrapped around the steel columns and wrapped with the fire retardant panel.
In some embodiments, the outer rock wool boards comprise four groups, each group comprises a plurality of outer rock wool boards, the four groups of outer rock wool boards respectively cover the periphery of the steel column and are butted to form a ring structure, and in each group of outer rock wool boards, the outer rock wool boards are arranged in a fit mode.
In some embodiments, the fire-proof plates include four groups, each group includes a plurality of fire-proof plates, the four groups of fire-proof plates respectively cover the periphery of the outer rock wool plate and are butted to form a ring-shaped structure, and in each group of fire-proof plates, each fire-proof plate is arranged in a joint mode.
In some of these embodiments, the construction further includes profiled steel sheets wrapped around the fire shield and connected to the purlins.
In some embodiments, the profiled steel plates comprise four groups, each group comprises a plurality of profiled steel plates, the four groups of profiled steel plates respectively cover the periphery of the fireproof plate and are butted to form an annular structure, and in each group of profiled steel plates, the profiled steel plates are arranged in a joint mode.
According to the structure that provides one kind carries out fire protection to steel column according to this application embodiment, the steel column has web and two pterygoid laminas, and two pterygoid laminas are perpendicular respectively in the both sides of the relative setting of web to inject two recesses. The structure comprises a partition board, purlines, an inner rock wool board and a fireproof board. The baffle is connected in each recess to divide equally into a plurality of cavities that arrange along the length direction of steel column each recess. Purlines are connected around the steel columns and connected with the partition plates. An inner rock wool panel is filled in each chamber. The fireproof plates are wrapped around the steel columns and connected with the purlines. According to the technical scheme, the steel column is prevented from being burnt by the fireproof plate, and the problem that the implementation conditions required by coating thick fireproof paint cannot be met in the low-temperature severe environment in winter is solved. Meanwhile, all components of the fireproof plate are standardized, and the processing and mounting quality is easier to guarantee. The fireproof plate is assembled in a dry mode, and construction standardization requirements are met. The fireproof plate is firmer and safer, the appearance is smooth, and the visual effect is better.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a plan view of a partition and steel column in an embodiment of the present application;
FIG. 2 is an elevation view of a purlin with steel columns and spacers in an embodiment of the present application;
FIG. 3 is a cross-sectional view of a purlin of an embodiment of the present application;
fig. 4 is a plan view of a configuration in an embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of and not restrictive on the broad application.
Referring to fig. 1 to 4, embodiments of the present application provide a structure for fire protection of a steel column 1. Wherein, steel column 1 is located one side of outer wall 2, and steel column 1 has web 10 and two pterygoid lamina 11, and the middle part of two pterygoid lamina 11 is perpendicular respectively and is connected in the relative both sides that set up of web 10 to inject two recesses. The steel column 1 is specifically a columnar structure having an H-shaped section. The structure comprises a partition plate 3, a purline 4, an inner rock wool plate 5 and a fireproof plate 6.
The partition plates 3 are connected in the grooves and divide the grooves into a plurality of chambers arranged along the length direction of the steel column 1. Further, the partition boards 3 comprise two groups, each group comprises a plurality of partition boards 3, the two groups of partition boards 3 are respectively connected in the two grooves, each partition board 3 is perpendicular to the web 10 and each wing plate 11 and welded on the web 10 and the wing plates 11 in each group of partition boards 3, and the partition boards 3 are arranged at preset intervals along the length direction of the steel column 1, for example, the intervals are 1200-1500 mm, so that the partition boards 3 equally divide the grooves into a plurality of chambers arranged along the length direction of the steel column 1. The separator 3 is a steel separator 3.
Each purline 4 has a first lath 40, a second lath 41 and a third lath 42, and one side of the first lath 40 and one side of the third lath 42 are respectively and vertically connected to two sides of the second lath 42 which are oppositely arranged in the width direction and are respectively positioned on two sides of the second lath 42 which are oppositely arranged in the thickness direction. The purlines are in a strip structure with Z-shaped sections, namely the purlines 4 are Z-shaped purlines 4. Wherein, the first lath 40 is jointed and welded with the wing plate 11, the second lath 41 is positioned above the clapboard 3 and jointed and welded with the clapboard 3, and the third lath 42 is jointed and connected with the fireproof plate 6 through the tapping screw 9. The first, second and third slats 40, 41, 42 are each 50mm wide and 2mm thick.
An inner rock wool slab 5 fills each chamber. Further, interior rock wool board 5 includes the multiunit, and every group all includes a plurality ofly, and rock wool board 5 fills respectively in each cavity in every group to the butt joint forms ring structure, and in the rock wool board 5 in every group, each interior rock wool board 5 is along the depth direction superpose of cavity, and the border of each interior rock wool board 5 all is crowded tightly with the perisporium of cavity. The inner rock wool panel 5 is a 50mm thick rock wool panel.
The structure further comprises an outer rock wool plate 7, wherein the outer rock wool plate 7 is wrapped around the steel column 1 and wrapped by the fireproof plate 6. Furthermore, the outer rock wool boards 7 comprise four groups, each group comprises a plurality of outer rock wool boards 7, the four groups of outer rock wool boards 7 are respectively covered on the periphery of the steel column 1 and are in butt joint to form an annular structure, and in each group of outer rock wool boards 7, the outer rock wool boards 7 are arranged in a fit mode. The outer rock wool panel 7 is also a 50mm thick rock wool panel.
The fireproof plates 6 are wrapped around the outer rock wool plate 7 and connected with the purlines 4. Furthermore, the fire prevention board 6 includes four groups, and each group all includes a plurality of, and four groups of fire prevention boards 6 cover respectively around outer rock wool board 7 to the butt joint forms the loop configuration, and in each group of fire prevention board 6, each fire prevention board 6 is connected with purlin 4 through self-tapping screw 9, and each fire prevention board 6 laminating is arranged. The fire protection plate 6 is a 12mm thick fibre-reinforced silicate plate.
The structure further comprises profiled steel sheets 8, and the profiled steel sheets 8 are wrapped around the fireproof plates 6 and connected with the purlines 4. Further, profiled steel sheets 8 comprise four groups, each group comprises a plurality of profiled steel sheets 8, the four groups of profiled steel sheets 8 are respectively covered around the fireproof plate 6 and are butted to form an annular structure, in each group of profiled steel sheets 8, each profiled steel sheet 8 is connected with the purline 4 through a self-tapping screw 9, and each profiled steel sheet 8 is attached and arranged. The profiled steel sheet 8 is a single-layer profiled steel sheet 8 having a thickness of 0.6 mm.
Accordingly, embodiments of the present application provide a method for protecting a steel column 1 against fire, including the following steps:
(1) Firstly, horizontally welding steel clapboards 3 on the steel columns 1, wherein the vertical distance is about 1200-1500 mm;
(2) And welding the Z-shaped purlines 4 around the steel column 1 and simultaneously welding the Z-shaped purlines and the steel grating together, wherein the vertical distance is about 1200-1500 mm.
(3) The method comprises the following steps of filling the interior of a steel column 1 with a rock wool plate with the thickness of 50mm, wrapping the periphery of the steel column 1, and tightly extruding the rock wool plate and a steel partition plate 3 from top to bottom;
(4) Self-tapping screws 9 are adopted to fix the fireproof plate 6 (a fiber reinforced silicate plate with the thickness of 12 mm) on the Z-shaped purline 4;
(5) A single-layer profiled steel sheet 8 with the thickness of 0.6mm is selected as a decoration according to the requirement and is fixed on the Z-shaped purline 4 by adopting a self-tapping screw 9.
To sum up, among the technical scheme of this application, through mutually supporting of baffle 3, purlin 4, rock wool board, PLASTIC LAMINATED 6, realized that steel construction fire protection construction does not receive environmental condition to influence, the equipment is convenient, and is fixed firm, and is pleasing to the eye durable, stops the potential safety hazard in the later stage operation. Wherein, the problem that the fire prevention coating construction environment requirement can not be satisfied winter in severe cold district to the PLASTIC LAMINATED 6, in the concrete actual engineering of solving, winter environment is abominable, can't satisfy thick type fire prevention coating's construction requirement, cause unable construction or inconvenient construction, and then influence the problem of time limit for a project and quality, and solve fire prevention coating and easily pile up downwards, and thick type coating component granule is great, the surface is more crude after accomplishing, the impression is not good and the problem that the later stage probably drops, guarantee construction operation continuity, practice thrift the time limit for a project. The fireproof plate 6 is relatively thick fireproof paint, all components are standardized, and the processing and mounting quality is easier to ensure. The fireproof plate 6 is installed with relatively thick fireproof paint for construction, and the construction is changed from wet operation to dry assembly, so that civilized construction is facilitated, and the construction standardization development trend is met. The fireproof plate 6 is relatively thick fireproof paint, has smooth appearance, is easy to decorate, has better visual effect, and is not easy to fall off in the later period.
The same or similar reference numerals in the drawings of the present embodiment correspond to the same or similar components. In the description of the present application, it is to be understood that if there is an orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not intended to indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only for illustrative purposes and are not to be construed as limitations of the present patent, and specific meanings of the above terms may be understood by those skilled in the art according to specific situations.
The above description is only a preferred embodiment of the present application and should not be taken as limiting the present application, and any modifications, equivalents, improvements, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (10)
1. A structure for carrying out fire protection on a steel column is provided with a web plate and two wing plates, wherein the two wing plates are respectively and vertically connected to two opposite sides of the web plate and limit two grooves; characterized in that said construction comprises:
the partition plates are connected in the grooves and divide the grooves into a plurality of chambers which are arranged along the length direction of the steel column;
the purlines are connected to the periphery of the steel columns and connected with the partition plates;
an inner rock wool board filled in each of the chambers;
and the fireproof plate is wrapped around the steel column and is connected with the purline.
2. A fire protection construction for steel columns according to claim 1,
the partition plates comprise two groups, each group comprises a plurality of partition plates, the two groups of partition plates are respectively connected into the two grooves, each partition plate is perpendicular to the web plate and each wing plate in each group of partition plates, and the partition plates are arranged at preset intervals along the length direction of the steel column.
3. A fire protection arrangement for a steel column according to claim 1,
the purlins comprise four groups, each group comprises a plurality of purlins, the four groups of purlins are respectively connected to the periphery of the steel column and are butted to form an annular structure, each purlin in each group is transversely arranged on the steel column, and the purlins are arranged at preset intervals along the length direction of the steel column.
4. A fire protection construction for a steel column according to claim 3,
each purline all has first lath, second lath and third lath, first lath with the third lath respectively perpendicular connection in the relative both sides that set up of second lath, first lath with the steel column is connected, the second lath with the baffle is connected, the third lath with the PLASTIC LAMINATED is connected.
5. A fire protection arrangement for a steel column according to claim 1,
the inner rock wool board comprises a plurality of groups, each group comprises a plurality of inner rock wool boards, each group of inner rock wool boards are respectively filled in the cavities, each group of inner rock wool boards are stacked in the depth direction of the cavities, and the edges of the inner rock wool boards are tightly squeezed with the peripheral walls of the cavities.
6. A fire protection configuration for a steel column as claimed in claim 1 further comprising:
and the outer rock wool board is wrapped around the steel column and is wrapped by the fireproof board.
7. A fire protection construction for steel columns according to claim 6,
the outer rock wool boards comprise four groups, each group comprises a plurality of outer rock wool boards, the four groups of outer rock wool boards cover the periphery of the steel column respectively and are in butt joint to form an annular structure, and in each group of outer rock wool boards, the outer rock wool boards are arranged in a fit mode.
8. A fire protection construction for steel columns according to claim 6,
the fireproof plate comprises four groups, each group comprises a plurality of fireproof plates, the four groups of fireproof plates cover the periphery of the outer rock wool plate respectively and are butted to form an annular structure, and in each group of fireproof plates, the fireproof plates are arranged in a joint mode.
9. A fire protection construction for a steel column as claimed in claim 1, further comprising:
and the profiled steel sheet is wrapped around the fireproof plate and is connected with the purline.
10. A fire protection construction for steel columns according to claim 9,
the profiled steel plates comprise four groups, each group comprises a plurality of profiled steel plates, the four groups of profiled steel plates respectively cover the periphery of the fireproof plate and are butted to form an annular structure, and in each group of profiled steel plates, the profiled steel plates are arranged in a joint mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211137551.3A CN115506499A (en) | 2022-09-19 | 2022-09-19 | Structure for carrying out fireproof protection on steel column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211137551.3A CN115506499A (en) | 2022-09-19 | 2022-09-19 | Structure for carrying out fireproof protection on steel column |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115506499A true CN115506499A (en) | 2022-12-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211137551.3A Pending CN115506499A (en) | 2022-09-19 | 2022-09-19 | Structure for carrying out fireproof protection on steel column |
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| Country | Link |
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| CN (1) | CN115506499A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208363475U (en) * | 2018-04-24 | 2019-01-11 | 南京市市政设计研究院有限责任公司 | A kind of steel column fireproof structure |
| CN111502055A (en) * | 2020-04-28 | 2020-08-07 | 河南远大可持续建筑科技有限公司 | Fireproof method for packaging assembled H-shaped steel column |
| CN211622068U (en) * | 2019-12-24 | 2020-10-02 | 龙元明筑科技有限责任公司 | Fireproof protection structure of steel beam |
-
2022
- 2022-09-19 CN CN202211137551.3A patent/CN115506499A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208363475U (en) * | 2018-04-24 | 2019-01-11 | 南京市市政设计研究院有限责任公司 | A kind of steel column fireproof structure |
| CN211622068U (en) * | 2019-12-24 | 2020-10-02 | 龙元明筑科技有限责任公司 | Fireproof protection structure of steel beam |
| CN111502055A (en) * | 2020-04-28 | 2020-08-07 | 河南远大可持续建筑科技有限公司 | Fireproof method for packaging assembled H-shaped steel column |
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