Fireproof and decorative integrated structure of composite combination column
By covering the outside of the steel-concrete composite column structure with fireproof board components, the problem of rough surface of fire-retardant coatings in steel-structured houses is solved, the combination of decorative performance and fire-proof performance is achieved, the construction cost is reduced and the fire-proof effect is improved.
Patent Information
- Application Number
- CN202422653436.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-31
- Publication Date
- 2025-09-19
- Estimated Expiration
- 2034-10-31
AI Technical Summary
When existing steel tube concrete structures are used in steel structure houses, the non-expanding fire retardant coating has problems such as rough surface and loose texture, which cannot meet the needs of interior decoration.
Fireproof board components are used to surround the steel-concrete composite column structure through connectors to form an annular space. Fireproof panels such as autoclaved aerated concrete boards and paper-faced gypsum boards are combined with L-shaped, T-shaped, and U-shaped connectors to form an integrated fireproof and decorative structure, avoiding wet work and plastering steps.
It achieves high surface flatness and good decorative performance, meets the requirements of prefabricated construction, reduces construction costs, and effectively delays temperature rise in the event of a fire, providing good fire protection effects.
Smart Images
Figure CN223358592U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of steel pipe columns, and in particular relates to a fireproof and decorative integrated structure of a composite column. Background Art
[0002] Currently, in steel tube concrete-filled structures, the steel tubes constrain the concrete, placing the concrete inside the tubes in a state of complex stress (triaxial stress). This increases the strength of the concrete, significantly improving its plasticity and toughness. At the same time, the concrete inside the tubes supports the steel tubes, helping to improve their stability and delay or prevent local buckling. Therefore, steel tube concrete-filled structures can fully utilize the characteristics of both steel and concrete, and boast advantages such as light weight, high strength, ease of construction, and good seismic resistance. They have been widely used in multi-story building construction projects.
[0003] Compared with rectangular steel tube concrete columns, composite columns of circular steel tubes and steel plates filled with concrete have the advantages of simple production, small steel consumption and high bearing capacity. However, when this type of composite column is used in steel-structured houses, if non-expanding fire-retardant coating is used for fire protection on the indoor side, there are problems of rough surface and loose texture, which cannot meet the indoor decoration requirements. Utility Model Content
[0004] In response to the problems existing in the above-mentioned existing construction technology, the utility model provides a fire-proof and decorative integrated structure of a composite combination column, which not only ensures reliable fire-proof performance but also takes into account decorative performance. It has high surface flatness, simple structure, saves labor, and can reduce the overall cost of steel structure buildings.
[0005] The utility model proposes an integrated fireproof and decorative structure of a composite composite column, comprising: a steel-concrete composite column structure, a connecting piece and a fireproof panel assembly; the steel-concrete composite column structure comprises a hollow steel column and concrete poured in the hollow steel column; the hollow steel column is formed by welding a plurality of round steel pipes and a plurality of steel plates; the fireproof panel assembly surrounds the outside of the steel-concrete composite column structure, and the fireproof panel assembly and the steel-concrete composite column structure are connected by the connecting piece, and a distance is maintained between the fireproof panel assembly and the steel-concrete composite column structure to form an annular space.
[0006] Furthermore, the four circular steel tubes of the hollow steel column are distributed in a rectangular array at the four corners of the steel-concrete composite column structure; the four steel plates of the hollow steel column are distributed on the four sides of the steel-concrete composite column structure, and the two ends of each steel plate are respectively connected to the circular steel tubes at the two corners.
[0007] Furthermore, the concrete is poured inside the circular steel pipe.
[0008] Furthermore, the fireproof board assembly includes multiple fireproof boards; the multiple fireproof boards are connected end to end to form a hollow rectangular columnar structure, and the steel-concrete composite column structure is located inside the hollow rectangular columnar structure.
[0009] Furthermore, each fireproof board is arranged parallel to and spaced apart from the steel plate inside it.
[0010] Furthermore, the fireproof board adopts one or more of autoclaved aerated concrete board, paper-faced gypsum board, fiber-reinforced cement board, fiber-reinforced calcium silicate board, vermiculite fireproof board, calcium silicate fireproof board, glass magnesium flat board, microporous calcium silicate insulation board, cement perlite board, inorganic lightweight aggregate insulation board, foamed ceramic board, foam glass board, foamed cement board, and rock wool board.
[0011] Furthermore, the cross section of the connecting piece is one or more of L-shaped, T-shaped, U-shaped, rectangular or square.
[0012] Furthermore, one end of the connecting piece is connected to the fireproof board assembly, and the other end is connected to the round steel pipe or steel plate.
[0013] Furthermore, both ends of the steel plate are inclined surfaces, which are respectively fitted with the outer walls of the two round steel pipes.
[0014] Furthermore, the outer wall surface of the steel plate is tangent to the outer walls of the round steel tubes at both ends thereof.
[0015] The beneficial effects of the present invention are as follows: by surrounding the fireproof board assembly on the outside of the steel-concrete composite column structure through the connecting parts, it is a dry operation, which is different from the wet operation of spraying fire-retardant coatings, does not require maintenance, and meets the requirements of prefabricated construction. The fireproof board assembly makes the structure look good, can realize the integration of fireproof decoration, and eliminates the conventional plastering steps, thereby saving labor and reducing the overall cost. The structure is simple and the connection is reliable. The structural surface of the fireproof board assembly is flat, and the connection with the infill wall and steel beam is relatively simple, which is also conducive to the construction of the external finishing layer; the fireproof board itself is non-combustible and has a small thermal conductivity coefficient. In the event of a fire, it can effectively delay the temperature rise of the steel structure and play a good fire prevention effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 The utility model is a structural schematic diagram of a fireproof and decorative integrated structure of a composite combination column.
[0017] Figure 2 for Figure 1 Schematic diagram of the structure of a steel plate.
[0018] Figure 3 for Figure 1 Schematic diagram of the steel-concrete composite column structure.
[0019] In the figure: 1-round steel pipe; 2-steel plate; 3-concrete; 4-connector; 5-fireproof board; 6-self-tapping screw. DETAILED DESCRIPTION
[0020] The following is a further detailed description of this application with reference to the accompanying drawings and specific implementations:
[0021] like Figure 1-Figure 3 The fireproof and decorative integrated structure of a composite column shown includes a steel-concrete composite column structure, a connector 4 and a fireproof board assembly, wherein the steel-concrete composite column structure is located in the internal area of the structure, and the fireproof board assembly is covered on the outside of the steel-concrete composite column structure through the connector 4.
[0022] The steel-concrete composite column structure is a solid integrated composite column structure formed by pouring concrete 3 inside a hollow steel column, wherein the hollow steel column is welded by a round steel pipe 1 and a steel plate 2.
[0023] Four round steel tubes 1 are distributed in a rectangular array at the four corners of the composite column structure, and the four round steel tubes 1 are respectively connected between every two steel plates 2. Concrete 3 is poured inside the round steel tubes 1.
[0024] Four steel plates 2 are arranged at four right-angled sides of the composite column structure. The left and right ends of the outer wall surface of the steel plates 2 away from the inner side of the composite column structure are tangent to the outer side of the round steel tube 1 respectively.
[0025] Both ends of the steel plate 2 are beveled at an angle of 45° so that the ends of the steel plate 2 are tightly fitted and connected to the outer wall of the round steel tube 1.
[0026] The two steel plates 2 connected to the same round steel pipe 1 are arranged at 90 degrees. At the connection position of the round steel pipe 1 and the steel plate 2, the tangent line of the outer wall of the round steel pipe 1 is collinear with the outer wall of the steel plate 2 connected thereto.
[0027] Four circular steel tubes 1 and four steel plates 2 are welded to form a closed hollow column structure, and concrete 3 exists inside the hollow column structure, that is, the circular steel tubes 1 and the steel plates 2 are cast by concrete 3 to form a solid integrated composite column structure.
[0028] According to the changes in the building plan layout requirements, the cross-section of the steel-concrete composite column structure can be rectangular or square. When the dimensions of the four steel plates 2 are exactly the same, it is a column structure with a square cross-section.
[0029] The cross-section of the connecting piece 4 is one or more of L-shaped, T-shaped, U-shaped, rectangular or square, and is fixed to the outer wall of the round steel pipe 1 or steel plate 2 by welding, and is used to connect the fireproof board assembly with the steel-concrete composite column structure.
[0030] The fireproof panel assembly is a hollow columnar structure primarily composed of fireproof panels 5 connected by several self-tapping screws 6. The steel-concrete composite column structure is positioned within the hollow area enclosed by the fireproof panels 5. The fireproof panels 5 prevent fire from rapidly spreading to the steel-concrete composite column structure during a fire, slowing the temperature rise within the structure. This eliminates the rough and loose surface characteristics of non-intumescent fire-retardant coatings, meeting the requirements of interior decoration.
[0031] The four planar fireproof panels 5 are connected by self-tapping screws 6 to form a hollow rectangular columnar fireproof panel assembly, that is, every two adjacent fireproof panels 5 are connected and fixed by self-tapping screws 6.
[0032] Every two adjacent fireproof panels 5 are arranged at 90 degrees.
[0033] Each fireproof board 5 is arranged parallel to and spaced apart from the steel plate 2 of the steel-concrete composite column structure on the same side.
[0034] The fireproof board assembly is sleeved on the outside of the steel-concrete composite column structure, and is connected and fixed to the steel-concrete composite column structure through a connector 4 welded on the outer wall of the steel-concrete composite column structure.
[0035] Fireproof board 5 may be one or more of autoclaved aerated concrete board, gypsum board, fiber-reinforced cement board, fiber-reinforced calcium silicate board, vermiculite fireproof board, calcium silicate fireproof board, glass magnesium flat board, microporous calcium silicate insulation board, cement perlite board, inorganic lightweight aggregate insulation board, foamed ceramic board, foamed glass board, foamed cement board, and rock wool board. When combining fireproof boards of multiple materials, the shrinkage and expansion properties of each fireproof board should be similar to avoid damage to the assembly due to inconsistent deformation.
[0036] The specific approach of this utility model is:
[0037] The manufacturer prefabricates or purchases round steel pipes 1, steel plates 2, concrete 3, connectors 4, fireproof panels 5, and self-tapping screws 6. Professional designers provide information such as the dimensions and steel grades of the round steel pipes 1 and steel plates 2, the strength grade and mix ratio of the concrete 3, the cross-sectional shape of the connectors 4, the material and thickness of the fireproof panels 5, and the arrangement of the self-tapping screws 6.
[0038] Step S1: Figure 2 As shown, four steel plates 2 of a certain thickness are beveled at both ends at an angle of 45°;
[0039] Step S2: Figure 3 The arrangement of the components is as follows: the round steel tube 1 and the steel plate 2 are welded and fixed to form a hollow columnar structure that is approximately rectangular;
[0040] Step S3: Use concrete 3 to pour, vibrate and maintain the inside of the round steel pipe 1 and the hollow columnar structure to obtain Figure 3 The solid one-piece composite column structure shown;
[0041] Step S4: Figure 1 As shown, a connector 4 is welded on the outside of the composite column, and then four fireproof panels 5 are connected and fixed to the composite column structure through the connector 4;
[0042] Step S5: Finally, each fireproof board 5 is connected and fixed to each other with self-tapping screws 6 to form a firm and complete fireproof decorative integrated structure for the combined column structure.
[0043] The above are only preferred embodiments of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be pointed out that for those skilled in the art, various improvements and modifications that do not depart from the principles of the present invention should also be considered within the scope of protection of the present invention.
Claims
1. A fireproof and decorative integrated structure of a composite column, characterized in that: include: Steel-concrete composite column structures, connectors, and fireproofing panel assemblies; The steel-concrete composite column structure includes a hollow steel column and concrete poured into the hollow steel column; The hollow steel column is formed by welding a plurality of round steel pipes and a plurality of steel plates; The fireproof panel assembly is surrounded by the outside of the steel-concrete composite column structure, and the fireproof panel assembly and the steel-concrete composite column structure are connected by the connecting piece. A distance is maintained between the fireproof panel assembly and the steel-concrete composite column structure to form an annular space.
2. The fireproof and decorative integrated structure of a composite column according to claim 1, characterized in that: The four circular steel tubes of the hollow steel column are distributed in a rectangular array at the four corners of the steel-concrete composite column structure; the four steel plates of the hollow steel column are distributed on the four sides of the steel-concrete composite column structure, and the two ends of each steel plate are respectively connected to the circular steel tubes at the two corners.
3. The fireproof and decorative integrated structure of a composite column according to claim 1, characterized in that: The concrete is poured inside the round steel pipe.
4. The fireproof and decorative integrated structure of a composite column according to any one of claims 1 to 3, characterized in that: The fireproof board assembly includes multiple fireproof boards; the multiple fireproof boards are connected end to end to form a hollow rectangular columnar structure, and the steel-concrete composite column structure is located inside the hollow rectangular columnar structure.
5. The fireproof and decorative integrated structure of a composite column according to claim 4, characterized in that: Each fireproof board is arranged parallel to and spaced apart from the steel plate inside it.
6. The fireproof and decorative integrated structure of a composite column according to claim 4, characterized in that: The fireproof board is one or more of autoclaved aerated concrete board, paper-faced gypsum board, fiber-reinforced cement board, fiber-reinforced calcium silicate board, vermiculite fireproof board, calcium silicate fireproof board, glass magnesium flat board, microporous calcium silicate insulation board, cement perlite board, inorganic lightweight aggregate insulation board, foamed ceramic board, foamed glass board, foamed cement board, and rock wool board.
7. The fireproof and decorative integrated structure of a composite column according to claim 4, characterized in that: The cross section of the connecting piece is one or more of L-shaped, T-shaped, U-shaped, rectangular or square.
8. The fireproof and decorative integrated structure of a composite column according to claim 7, characterized in that: One end of the connecting piece is connected to the fireproof board assembly, and the other end is connected to the round steel pipe or steel plate.
9. The fireproof and decorative integrated structure of a composite column according to claim 4, characterized in that: Both ends of the steel plate are inclined surfaces, which are respectively fitted with the outer walls of the two round steel pipes.
10. The fireproof and decorative integrated structure of a composite column according to claim 4, characterized in that: The outer wall surface of the steel plate is tangent to the outer walls of the round steel tubes at both ends thereof.