CN219973563U - Fireproof structure for steel support - Google Patents

Abstract

The utility model belongs to the technical field of constructional engineering, and relates to a fireproof structure for a steel support, which comprises a plurality of fireproof assemblies, wherein each fireproof assembly comprises a heat insulation layer, fireproof plates and a steel support, the heat insulation layer is arranged between the fireproof plates and the steel support, a plurality of seam plate belts are distributed on the heat insulation layer at intervals, the front view of the steel support is I-shaped, the side view of the steel support is I-shaped, the heat insulation layer and the fireproof plates are sequentially wrapped on the periphery of the steel support, the fireproof plates are provided with a plurality of, two adjacent fireproof plates are fixed on one seam plate belt through fixing pieces, the seam plate belts on different sides of the heat insulation layer are staggered, and fireproof sealing blocking materials are further arranged at the connecting positions of the two adjacent fireproof assemblies. The utility model has the advantages of simple structure, convenient operation, improved fireproof and heat-conducting capacity, stability and reliability, good sealing performance, wide adaptability, attractive appearance and the like.

Description

Fireproof structure for steel support

Technical Field

The utility model belongs to the technical field of constructional engineering, and particularly relates to a fireproof structure for steel support.

Background

At present, the national economic level is improved, and the fireproof requirements on the steel structure in the national standard specification are higher and higher. The steel frame-supporting structure is a very excellent structural system, and has the characteristics of short installation period, high rigidity, light dead weight, good anti-seismic performance and the like, but has the biggest disadvantage of poor fire resistance. The steel support structure of the steel frame-support structure, which is a main or important side force resisting member, bears very large load and plays a vital role. As the fire disaster is a temperature effect, a large number of calculations can find that the influence on the steel support is the greatest and the steel support is the most dangerous under the fire disaster working condition, and the conventional fireproof means can hardly ensure that the steel support has the safety allowance regulated by the national standard.

At present, the most common means for steel structure fire prevention is to paint non-expansion type fire-proof paint, but the non-expansion type fire-proof paint which is easy to purchase in the market hardly meets the technical requirements of design, and because the non-expansion type fire-proof paint must be painted manually after the steel structure is installed, the outer elevation often has pits and depressions, and if no additional painting modification is performed, the appearance is quite attractive.

Disclosure of Invention

The utility model aims to overcome the defects and shortcomings in the prior art, and provides the fireproof structure for the steel support, which has the advantages of simple structure, stability, reliability and attractive appearance, and can improve the fireproof heat-conducting property.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows: a fire prevention structure for steel support, includes a plurality of fire prevention subassemblies, fire prevention subassembly includes insulating layer, fire prevention panel and steel support, the insulating layer sets up between fire prevention panel and steel support, and the interval distribution has a plurality of piece slab band on the insulating layer.

Preferably, the front view of the steel support is I-shaped, and the side view of the steel support is I-shaped.

Preferably, the heat insulation layer and the fireproof plate are sequentially wrapped on the periphery of the steel support.

Preferably, the fireproof plates are provided in a plurality, and two adjacent fireproof plates are fixed on one joint plate belt through the fixing piece.

Preferably, the splicing seam plate strips on different sides of the heat insulation layer are staggered.

Preferably, the joint of two adjacent fireproof assemblies is also provided with a fireproof sealing putty.

Preferably, the fireproof plate is selected from a fireproof gypsum plate, a fiber reinforced silicate plate, a fiber reinforced calcium silicate plate or a cement pressurizing plate.

Preferably, the heat insulation layer is made of rock wool felt, silicon aluminate fiber felt, glass wool coil felt or slag wool.

After the technical scheme is adopted, the fireproof structure for the steel support has the following beneficial effects:

according to the utility model, the design of the heat insulation layer and the fireproof plate can ensure that the fireproof heat conduction performance of the heat insulation layer can easily reach 3-4 times or more than that of a conventional non-expansion fireproof coating; the finished surface of the utility model is an outsourced semi-finished fireproof plate panel, which is more beautiful than fireproof paint; the light steel keel fixing piece is not arranged, the fixing pieces (generally, shooting nails and the like can be used) are all made of nonflammable fireproof materials, and the fireproof system is tightly screwed and has good effect; the thickness of the heat insulation layer and the index of the fireproof plate can be adjusted and replaced according to actual needs, so that the aim of realizing different fireproof parameters is fulfilled; the internal corner of the structure which is not well treated is treated by the fireproof sealing putty, so that no seam is reserved on the fireproof structure, and the fireproof performance is further ensured. Therefore, the utility model has the advantages of simple structure, convenient operation, improved fireproof and heat-conducting capacity, stability, reliability, good sealing performance, wide adaptability, attractive appearance and the like.

Drawings

Fig. 1 is a front view of a fire protection assembly of the present utility model;

fig. 2 is a side view of a fire protection assembly of the present utility model;

FIG. 3 is a schematic diagram of the structure of the present utility model;

fig. 4 is a schematic diagram of the present utility model for fire protection and heat conduction.

Wherein: the fireproof plate comprises a heat insulation layer 1, a fireproof plate 2, a fixing piece 3, a joint strip 4, a fireproof sealing putty 5 and a steel support 6.

Detailed Description

The present utility model now will be described more fully hereinafter with reference to the accompanying drawings, in which embodiments of the utility model are shown, and in which embodiments of the utility model are shown, by way of illustration only, and not all embodiments. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the utility model, its application, or uses. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present utility model. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present utility model unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.

In the description of the present utility model, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal", and "top, bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present utility model; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

In addition, the terms "first", "second", etc. are used to define the components, and are only for convenience of distinguishing the corresponding components, and the terms have no special meaning unless otherwise stated, and therefore should not be construed as limiting the scope of the present utility model.

The utility model discloses a fireproof structure for a steel support, which is shown in fig. 1-3 and comprises a plurality of fireproof assemblies, wherein each fireproof assembly comprises a heat insulation layer 1, a fireproof plate 2 and a steel support 6, the heat insulation layer 1 is arranged between the fireproof plate 2 and the steel support 6, and a plurality of joint plate strips 4 are distributed on the heat insulation layer 1 at intervals.

The front view of the steel support 6 is I-shaped, the side view of the steel support 6 is I-shaped, the heat insulation layer 1 and the fireproof plates 2 are sequentially wrapped on the periphery of the steel support 6, fireproof heat conduction performance and attractive appearance can be guaranteed, the fireproof plates 2 are provided with a plurality of fireproof plates, two adjacent fireproof plates 2 are fixed on one joint plate belt 4 through fixing pieces 3, and the joint plate belts 4 on different sides of the heat insulation layer 1 are staggered, and the heat insulation layer is not provided with light steel keel fixing pieces, is made of non-combustible fireproof materials except the fixing pieces 3 (generally can use shooting nails and the like), is a fireproof system, and has a tight seam and good effect; the thickness of the heat insulation layer 1 and the index of the fireproof plate 2 can be adjusted and replaced according to actual needs, so that the aim of realizing different fireproof parameters is fulfilled.

Further, the structure body is formed by splicing a plurality of fireproof assemblies, the connection part of the adjacent structure bodies is further provided with a fireproof sealing putty 5, and the fireproof sealing putty 5 is used for treating the structure internal corner which is not well treated, so that a fireproof structure is not left with gaps, the fireproof performance is further ensured, the fireproof plate 2 is a semi-finished fireproof plate which has similar fireproof characteristics and has certain self rigidity, such as a fireproof gypsum board, a fiber reinforced silicate board, a fiber reinforced calcium silicate board, a cement pressurizing board and the like, and the heat insulation layer 1 is made of various fireproof filling materials with low incombustibility and heat conductivity, such as a rock wool felt, a silicon aluminate fiber felt, a glass wool felt, mineral wool and the like.

The principle of fire prevention and heat conduction of the fire prevention structure for the steel support is shown in fig. 4, the temperature reaches T0 after the temperature rises for a period of time T in a fire disaster, the temperature of the outer surface of the fire prevention plate is reduced to be T1 in a small degree, and the temperature is reduced to be T2 after passing through the fire prevention plate due to the fact that the thickness of the fire prevention plate is thinner. After the excellent heat insulation layer is adopted, the temperature is reduced to be T3, and the steel structure is approximately considered to be T3 with uniform temperature at the moment due to good heat conduction performance, the temperature effect of the steel structure acting on the steel support after the fire disaster T time is actually T3, T3 is less than T0, the temperature stress of the steel support can be greatly reduced, and the safety of the steel support is protected.

In conclusion, the fireproof structure for the steel support has the advantages of being simple in structure, convenient to operate, stable and reliable, good in sealing performance, wide in adaptability, attractive in appearance and the like, improving fireproof heat-conducting capacity, and has great market value and is worthy of being widely popularized and applied.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims (8)

1. A fire protection structure for steel support, characterized in that: including a plurality of fire prevention subassemblies, fire prevention subassembly includes insulating layer (1), fire prevention panel (2) and steel support (6), insulating layer (1) set up between fire prevention panel (2) and steel support (6), and on insulating layer (1) interval distribution have a plurality of piece slab band (4).

2. A fire protection structure for steel supports according to claim 1, characterized in that: the front view of the steel support (6) is I-shaped, and the side view of the steel support (6) is I-shaped.

3. A fire protection structure for steel supports according to claim 1, characterized in that: the heat insulation layer (1) and the fireproof plate (2) are sequentially wrapped on the periphery of the steel support (6).

4. A fire protection structure for steel supports according to claim 1, characterized in that: the fireproof plate (2) is provided with a plurality of fireproof plates, and two adjacent fireproof plates (2) are fixed on a joint plate belt (4) through fixing pieces (3).

5. A fire protection structure for steel supports according to claim 1, characterized in that: the splicing seam plate strips (4) on different sides of the heat insulation layer (1) are staggered.

6. A fire protection structure for steel supports according to claim 1, characterized in that: the joint of two adjacent fireproof assemblies is also provided with a fireproof sealing putty (5).

7. A fire protection structure for steel supports according to claim 1, characterized in that: the fireproof plate (2) is selected from a fireproof gypsum board, a fiber reinforced silicate board, a fiber reinforced calcium silicate board or a cement pressurizing board.

8. A fire protection structure for steel supports according to claim 1, characterized in that: the heat insulation layer (1) is made of rock wool felt, silicon aluminate fiber felt, glass wool roll felt or slag wool.