Concrete external wall thermal insulation fireproof structure of green building
By using light steel keel and fireproof gypsum board in the exterior walls of the building, the problem of fire-proof insulation structure damage at high temperatures is solved, and efficient fire-proof insulation effect and wall strength are achieved.
Patent Information
- Application Number
- CN202510726675.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-03
- Publication Date
- 2025-07-11
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
The fire-proof and thermal insulation structure of existing building concrete exterior walls is easily damaged under the action of high-temperature flames, resulting in weakening of fire resistance and affecting the insulation effect.
It adopts light steel keel and fire-resistant gypsum board structure, combined with ALC strips and concrete fillers, and is connected by limit bolts and screws to form a stable wall structure to enhance fire resistance and thermal insulation performance.
It improves the fire resistance and insulation effect of the exterior wall, enhances the overall strength and service life of the wall, and ensures that building safety can still be effectively protected under high temperature environments.
Smart Images
Figure CN120291636A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of green buildings, and specifically to a heat-insulating and fireproof structure for the concrete exterior wall of a green building. Background Art
[0002] Heat-insulating structure measures are often required to be set on the outer side of the concrete exterior wall of a green building to ensure heat insulation, waterproofing and fireproofing requirements. For the fireproofing of the building concrete exterior wall, the amplitude of the increase in the wall temperature caused by the flame is an important factor for evaluating the building safety and the building use function.
[0003] The existing fireproof and heat-insulating structures of walls are generally installed on the exterior wall. Considering that the fireproof materials used in the fireproof structure have different performances, when the materials used in the fireproof structure have weak use performances and low upper limits of high temperature resistance, and the temperature of the flame is high, to a certain extent, the fireproof structure will be damaged, and thus the fireproof performance will be weakened, affecting the fireproof and heat-insulating effect of the wall. In view of this, we propose a heat-insulating and fireproof structure for the concrete exterior wall of a green building. Summary of the Invention
[0004] The purpose of the present invention is to provide a heat-insulating and fireproof structure for the concrete exterior wall of a green building to solve the problem that in the existing fireproof and heat-insulating structures of walls, which are generally installed on the exterior wall, when the temperature of the flame is high, the fireproof structure will be damaged to a certain extent, and thus the fireproof performance will be weakened, affecting the fireproof and heat-insulating effect of the wall as mentioned in the above background art.
[0005] To achieve the above purpose, the present invention provides the following technical solution: A heat-insulating and fireproof structure for the concrete exterior wall of a green building, comprising a wall composed of a first light steel keel and a second light steel keel. The adjacent walls are connected by limit bolts, and limit nuts are threadedly connected to both ends of the limit bolts. The first light steel keel and the second light steel keel are arranged opposite to each other. A partition component is arranged between the first light steel keel and the second light steel keel. A heat-insulating board and a refractory gypsum board are sequentially arranged from the inside to the outside on the outer sides of the opposite first light steel keel and second light steel keel. The outer sides and inner sides of the opposite first light steel keel and second light steel keel are filled with concrete fillers. A limit plate is arranged below the first light steel keel and the second light steel keel, and a baffle is arranged in the middle of the limit plate.
[0006] The partition component includes a barrier member. A plurality of barrier grooves are formed on the barrier member. An ALC strip is clamped inside the barrier groove. A first screw and a second screw are distributed in a square shape on the ALC strip. Limit holes for inserting the first screw and the second screw are respectively formed on the first light steel keel and the second light steel keel. The barrier member is clamped between adjacent baffles.
[0007] Preferably, the heat-insulating board and the refractory gypsum board are both provided with hole grooves for sleeving the first screw and the second screw.
[0008] Preferably, the adjacent barrier grooves are arranged at intervals, and the longitudinal section of the barrier groove is rectangular.
[0009] Preferably, the first screw rod and the second screw rod are arranged oppositely, and the center lines of the first screw rod and the second screw rod are parallel to each other.
[0010] Preferably, the cross sections of the first light steel keel and the second light steel keel are in a "U" shape with the opening facing outwards.
[0011] Preferably, both the first screw rod and the second screw rod are perpendicular to the center line of the limit bolt.
[0012] Preferably, the fireproof gypsum board is provided with a hole groove for inserting the limit bolt, and the heat preservation board is arranged between the fireproof gypsum board, the first light steel keel and the second light steel keel.
[0013] Compared with the prior art, the beneficial effects of the present invention are as follows:
[0014] 1. For the concrete exterior wall heat preservation and fire prevention structure of this green building, by arranging the partition component between the opposite first light steel keel and the second light steel keel, and the position of the partition component, the first light steel keel and the second light steel keel can be fixed through the limit plate, further ensuring the relative positions of the partition component, the first light steel keel and the second light steel keel; and by filling concrete filler between the partition component, the first light steel keel and the second light steel keel, the concrete filler can further ensure the use stability of the partition component;
[0015] 2. For the concrete exterior wall heat preservation and fire prevention structure of this green building, by uniformly arranging ALC blocks on the barrier member, the ALC blocks are porous silicate products obtained by using silica sand, cement, quicklime, gypsum as raw materials, aluminum powder as the foaming agent, through a series of technological processes (batching, reinforcement, foaming, cutting), and finally through high-temperature and high-pressure steam curing. Setting it between the first light steel keel and the second light steel keel can not only maintain the heat preservation effect of the exterior wall, but also ensure the service life of the barrier member;
[0016] 3. For the concrete exterior wall heat preservation and fire prevention structure of this green building, the first screw rod and the second screw rod for connection straddle between the barrier member, the first light steel keel and the second light steel keel. The first screw rod and the second screw rod can serve as the skeleton of the concrete filler, further increasing the strength of the exterior wall. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 is a schematic structural diagram of the present invention;
[0018] Figure 2 is a front view schematic diagram of the structure of the present invention;
[0019] Figure 3 is a side view schematic diagram of the structure of the present invention;
[0020] Figure 4 Schematic diagram of the distribution of concrete filler in the structure of the present invention;
[0021] Figure 5 Schematic diagram of the half-section structure of the present invention;
[0022] Figure 6 Schematic diagram of the structure of the partition component of the present invention;
[0023] Figure 7 Schematic diagram of the structure of the limit plate of the present invention.
[0024] In the figure: 1, wall; 101, first light steel keel; 102, second light steel keel; 11, limit bolt; 12, limit nut; 13, limit hole; 2, insulation board; 3, fireproof gypsum board; 4, partition component; 40, barrier groove; 41, barrier member; 42, ALC strip; 43, first screw; 44, second screw; 5, concrete filler; 6, limit plate; 61, baffle. Detailed implementation manner
[0025] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0026] Embodiment: Please refer to Figure 1-7 , the present invention provides a technical solution: a concrete exterior wall thermal insulation and fire prevention structure for a green building, including a wall 1 composed of a first light steel keel 101 and a second light steel keel 102. The first light steel keel 101 and the second light steel keel 102 are made of cold-rolled steel sheet (strip), galvanized steel sheet (strip) or color-sprayed steel sheet (strip), and are skeleton materials for ceilings or walls made of thin-walled steel sections produced by cold bending process. As the supporting material for the wall 1, it can make the wall 1 stronger. Among them, the cross-sections of the first light steel keel 101 and the second light steel keel 102 are in a "U" shape with the opening facing outwards. Such a setting can facilitate the filling of the concrete filler 5 outside the wall 1.
[0027] Please refer to Figure 1 , among which, adjacent walls 1 are connected by limit bolts 11, and limit nuts 12 are threadedly connected to both ends of the limit bolts 11, and the first light steel keel 101 and the second light steel keel 102 are arranged oppositely. Through the setting of the limit bolts 11 and the limit nuts 12, the walls 1 can be connected, so as to facilitate the extension of the exterior wall and facilitate the extension of the exterior wall according to actual needs.
[0028] Please refer toFigure 1-3 , wherein, a partition assembly 4 is arranged between the light steel keel 101 and the light steel keel 102. A heat preservation board 2 and a fireproof gypsum board 3 are sequentially arranged from inside to outside on the outer sides of the opposite light steel keel 101 and the light steel keel 102. A hole groove for inserting a limit bolt 11 is formed in the fireproof gypsum board 3. Wherein, the fireproof gypsum board 3 is formed by the dehydration of gypsum dihydrate, and its volume shrinks and loses integrity to become powdery. In order to improve the fire resistance of the gypsum board, some additives must be added to the core of the gypsum board. When exposed to fire, first, the free water in the core of the board evaporates, absorbing a small amount of heat and reducing the temperature around the board. When the temperature continues to rise, the crystal water of the gypsum dihydrate begins to separate and decomposes into gypsum and water. This process requires absorbing a large amount of heat and can affect the temperature rise around the board surface for a relatively long time, thereby achieving a good fireproof effect.
[0029] Specifically, the heat preservation board 2 is arranged between the fireproof gypsum board 3 and the light steel keel 101 and the light steel keel 102. The heat preservation board 2 is made of an inorganic active exterior wall heat preservation material, which belongs to green environmental protection building materials, has a very small thermal conductivity, and can store the absorbed heat energy inside at the same time. Therefore, it can achieve very good heat insulation and heat preservation effects. Setting it on the inner side of the fireproof gypsum board 3 can further play a certain protective role for the heat preservation board 2 and further ensure the heat preservation effect of the heat preservation board 2.
[0030] Please refer to Figure 4 , wherein, the outer sides and the inner sides of the opposite light steel keel 101 and the light steel keel 102 are filled with a concrete filler 5. The concrete filler 5 is a commonly used building material and has good fire resistance and fireproof performance. However, in some cases, the fireproof performance of the concrete may be affected. For example, in a high-temperature environment, the concrete may crack. At this time, through the setting of the light steel keel 101 and the light steel keel 102, the support strength of the concrete can be increased, thereby improving the use effect of the exterior wall.
[0031] Please refer to Figure 5 and Figure 7 , a limit plate 6 is arranged below the light steel keel 101 and the light steel keel 102, and a baffle 61 is arranged in the middle of the limit plate 6; the setting of the limit plate 6 can limit the relative positions of the light steel keel 101 and the light steel keel 102, thereby ensuring the uniformity of the thickness of the wall 1. The baffles 61 are arranged in the middle of the light steel keel 101 and the light steel keel 102, and the adjacent baffles 61 are arranged at intervals, and the distance between the adjacent baffles 61 is equal to the thickness of the partition assembly 4. Through the setting of the baffles 61, the fixing of the partition assembly 4 can be facilitated.
[0032] Specifically, please refer to Figure 1 and Figure 6, the partition component 4 includes a barrier member 41. Among them, the material of the barrier member 41 is composed of materials such as polymer mortar, fiberglass mesh cloth, flame-retardant molded polystyrene foam board (EPS) or extruded board (XPS). Using it as the material of the barrier member 41 can achieve the effect of heat preservation. The barrier member 41 is arranged between the first light steel keel 101 and the second light steel keel 102, and the barrier member 41 is spaced from both the first light steel keel 101 and the second light steel keel 102. During use, concrete filler 5 is filled between the barrier member 41 and the first light steel keel 101 and the second light steel keel 102, and the service life of the barrier member 41 can be increased through the concrete filler 5.
[0033] Furthermore, a plurality of barrier grooves 40 are formed in the barrier member 41. Adjacent barrier grooves 40 are spaced apart, and the longitudinal section of the barrier groove 40 is rectangular. An ALC strip 42 is clamped inside the barrier groove 40, and the spacing distance between adjacent barrier grooves 40 is less than 1 / 4 of the length of the barrier groove 40. Among them, screw one 43 and screw two 44 are distributed in a square shape on the ALC strip 42, and both the screw one 43 and the screw two 44 are perpendicular to the center line of the limit bolt 11. The ALC strip 42 is a porous silicate product obtained by using silica sand, cement, quicklime, gypsum as raw materials, aluminum powder as a foaming agent, through a series of technological processes (batching, reinforcement, foaming, cutting), and finally through high-temperature and high-pressure steam curing. Different from traditional aerated concrete with fly ash as raw material. It has the advantages of light weight, high strength, good heat preservation and sound insulation, long-lasting fire resistance, simple construction, green environmental protection, etc. Arranging it between the first light steel keel 101 and the second light steel keel 102 can not only maintain the heat preservation effect of the exterior wall but also ensure the service life of the barrier member 41.
[0034] Please refer to Figure 5 , among which, holes for sleeving the screw one 43 and the screw two 44 are formed in both the heat preservation board 2 and the fireproof gypsum board 3. The screw one 43 and the screw two 44 are arranged oppositely, and the center lines of the screw one 43 and the screw two 44 are parallel to each other. Limit holes 13 for inserting the screw one 43 and the screw two 44 are respectively formed on the first light steel keel 101 and the second light steel keel 102, and the barrier member 41 is clamped between adjacent baffles 61. Through the arrangement of the screw one 43 and the screw two 44, it is convenient to fix the partition component 4 to the corresponding first light steel keel 101 and second light steel keel 102, and through the arrangement of the screw one 43 and the screw two 44, the concrete filler 5 filled between the partition component 4 and the first light steel keel 101 and the second light steel keel 102 can be supported. The screw one 43 and the screw two 44 can serve as the framework of the concrete filler 5 to further increase the strength of the exterior wall.
[0035] Working principle: When constructing the heat preservation and fire prevention structure of the concrete exterior wall of this green building:
[0036] 1. Fix the limit plate 6 to the bottom surface with expansion bolts, and then successively snap the first light steel keel 101 and the second light steel keel 102 onto the limit plate 6 back to back;
[0037] 2. Snap the barrier member 41 between adjacent baffles 61, snap the ALC block 42 into the inside of the barrier groove 40, and fix the ALC block 42 to the barrier member 41 with the oppositely inserted first screw 43 and second screw 44. At this time, the outer ends of the first screw 43 and the second screw 44 are inserted and fixed to the corresponding first light steel keel 101 and second light steel keel 102;
[0038] 3. Successively arrange the insulation board 2 and the refractory gypsum board 3 on the outer sides of the first light steel keel 101 and the second light steel keel 102, and make the insulation board 2 and the refractory gypsum board 3 sleeve on the corresponding first screw 43 and second screw 44;
[0039] 4. Fill the concrete filler 5 between the first light steel keel 101, the second light steel keel 102 and the barrier member 41. At this time, the oppositely inserted first screw 43 and second screw 44 are placed inside the filled concrete filler 5. The first screw 43 and the second screw 44 can serve as the skeleton of the concrete filler 5 to further increase the strength of the exterior wall;
[0040] 5. Finally, fill the inside of the groove on the outer sides of the first light steel keel 101 and the second light steel keel 102 with the concrete filler 5. The concrete filler 5 can protect the use effects of the refractory gypsum board 3 and the insulation board 2.
[0041] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A heat-insulating and fireproof structure for the concrete exterior wall of a green building, comprising a wall (1) composed of a first light steel keel (101) and a second light steel keel (102), adjacent walls (1) being connected by limit bolts (11), the two ends of the limit bolts (11) being threadedly connected with limit nuts (12), the first light steel keel (101) and the second light steel keel (102) being arranged opposite to each other, characterized in that: A partition component (4) is arranged between the light steel keel one (101) and the light steel keel two (102). A heat preservation board (2) and a refractory gypsum board (3) are sequentially arranged from inside to outside facing the outsides of the light steel keel one (101) and the light steel keel two (102). Concrete filler (5) is filled on the outsides and insides facing the light steel keel one (101) and the light steel keel two (102). A limiting plate (6) is arranged below the light steel keel one (101) and the light steel keel two (102), and a baffle (61) is arranged in the middle of the limiting plate (6); The partition component (4) includes a blocking member (41). A plurality of blocking grooves (40) are formed in the blocking member (41). An ALC strip (42) is clamped and arranged inside the blocking grooves (40). A first screw (43) and a second screw (44) are distributed in a square shape on the ALC strip (42). Limiting holes (13) for inserting the first screw (43) and the second screw (44) are respectively formed in the light steel keel one (101) and the light steel keel two (102). The blocking member (41) is clamped between adjacent baffles (61).
2. The concrete exterior wall thermal insulation and fireproof structure of a green building according to claim 1, characterized in that: The heat preservation board (2) and the refractory gypsum board (3) are both provided with hole grooves for sleeving the first screw (43) and the second screw (44).
3. The concrete exterior wall thermal insulation and fire prevention structure of a green building according to claim 1, characterized in that: Adjacent blocking grooves (40) are arranged at intervals, and the longitudinal section of the blocking grooves (40) is rectangular.
4. The concrete exterior wall thermal insulation and fireproof structure of a green building according to claim 1, characterized in that: The first screw (43) and the second screw (44) are arranged oppositely, and the center lines of the first screw (43) and the second screw (44) are parallel to each other.
5. The concrete exterior wall thermal insulation and fire prevention structure of a green building according to claim 1, characterized in that: The cross sections of the light steel keel one (101) and the light steel keel two (102) are in a "U" shape with the opening facing outwards.
6. The concrete exterior wall thermal insulation and fireproof structure of a green building according to claim 1, characterized in that: The center lines of both the first screw (43) and the second screw (44) are perpendicular to the center line of the limiting bolt (11).
7. The concrete exterior wall thermal insulation and fireproof structure of a green building according to claim 1, characterized in that: The refractory gypsum board (3) is provided with a hole groove for inserting the limiting bolt (11), and the heat preservation board (2) is arranged between the refractory gypsum board (3) and the light steel keel one (101) and the light steel keel two (102).