CN114856242A - Anti-explosion reinforcing structure for wall and anti-explosion wall thereof - Google Patents
Anti-explosion reinforcing structure for wall and anti-explosion wall thereof Download PDFInfo
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- CN114856242A CN114856242A CN202210654427.8A CN202210654427A CN114856242A CN 114856242 A CN114856242 A CN 114856242A CN 202210654427 A CN202210654427 A CN 202210654427A CN 114856242 A CN114856242 A CN 114856242A
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G23/00—Working measures on existing buildings
- E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
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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
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/04—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate against air-raid or other war-like actions
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Abstract
The invention provides an anti-explosion reinforcing structure for a wall and an anti-explosion wall thereof, relates to the technical field of anti-explosion engineering, and solves the problems that the construction difficulty of the traditional method for reinforcing the wall in an anti-explosion way is high, and the formed reinforcing structure has weak blocking effect on explosion shock waves. The structure comprises a base material part and an anti-explosion elastomer coating part, the anti-explosion reinforced structure can be formed by spraying the anti-explosion elastomer on the base material part in advance under the condition of a preset processing technology, then the base material part of the anti-explosion reinforced structure for the wall body is arranged on the wall body to be reinforced, and the traditional structure reinforcing method and the coating reinforcing method are effectively combined, so that the prefabricated anti-explosion reinforced structure for the wall body can be directly fixed on the wall body to be reinforced in the field construction, and the effect of reinforcing the wall body is achieved. The anti-explosion reinforcing structure for the wall body is simple in structure and convenient to construct, and can effectively resist the impact generated by explosion when the existing building wall body is reinforced.
Description
Technical Field
The invention relates to the technical field of anti-explosion engineering, in particular to an anti-explosion reinforcing structure for a wall and an anti-explosion wall thereof.
Background
The control rooms for buildings and important equipment located in the areas of explosion risk sources are required to meet the relevant requirements of relevant laws and regulations, and especially the walls of the existing buildings in the class AB danger areas in the chemical industry park are required to be anti-explosion reinforced. The purpose of the anti-explosion reinforcement design is not to prevent the building from being damaged, but to protect people or important equipment in the building from the action of explosion shock waves through the anti-explosion wall when an explosion accident happens, so that the injury can be reduced to the minimum or prevented.
The traditional effective method for anti-explosion reinforcement of the wall body, such as a direct structure reinforcement method or a coating reinforcement method, has respective disadvantages and shortcomings. The direct structure reinforcing method is characterized in that a steel-structure anti-explosion wall is additionally arranged outside a wall body of a building, the anti-explosion wall is formed by welding two layers of metal plates through a keel frame, the structural size is large (usually 1200mm multiplied by 2400mm multiplied by 209mm), the weight is large (about 80kg per square meter), the construction difficulty is large, multiple persons are required to cooperate to carry out high-altitude operation, and a large space is occupied; the coating reinforcing method is to spray a coating on a wall of a building (the coating is determined to be outside or inside the wall according to an explosive source), and because the requirement of the spraying construction process is high, such as temperature, humidity or ventilation conditions, the continuous and stable requirements of the spraying construction process and environmental conditions in the whole construction process are difficult to meet on a construction site, and the final quality of the sprayed coating can not meet the design requirement due to the influence of unstable environmental factors on the process.
Although the anti-explosion performance of the building is increased to a certain extent by the reinforcing method, the problems that the construction difficulty is high and the blocking effect of the formed reinforcing structure on the explosion shock waves is weak exist. Therefore, the design of anti-explosion reinforcement for building walls needs to be based on the research on the action process of the blast shock wave on the walls, and also needs to research on the action mechanism of the blast shock wave on the high-strength composite coating.
Disclosure of Invention
The invention aims to solve the technical problems that the traditional method for anti-explosion reinforcement of the wall body is difficult to construct and the formed reinforcement structure has weak blocking effect on the explosion shock wave in the prior art, and provides the anti-explosion reinforcement structure for the wall body and the anti-explosion wall body thereof, so that the whole structure has enough strength and toughness to greatly attenuate the energy of the explosion shock wave, and the aims of greatly reducing the harm caused by explosion and improving the anti-explosion effect of the building wall body are fulfilled. The technical effects that can be produced by the preferred technical scheme in the technical schemes provided by the invention are described in detail in the following.
In order to achieve the purpose, the invention provides the following technical scheme:
the invention provides an anti-explosion reinforcing structure for a wall, which comprises a base material part and an anti-explosion elastomer coating part, wherein: the anti-explosion reinforcing structure for the wall is connected with the wall to be reinforced, and the anti-explosion elastomer coating part is sprayed on the surface of the base material part, which is far away from the wall to be reinforced.
As a further improvement of the invention, the anti-explosion elastomer coating part comprises an anti-explosion elastomer coating body and a high-strength fiber layer, the anti-explosion elastomer coating body is attached to the substrate part in a spraying mode, and the fiber layer is implanted into the anti-explosion elastomer coating body.
In a further improvement of the present invention, the base portion is made of a plate material made of one of a metal plate and a non-metal plate, or is made of a plate material made of at least two of a metal plate and a non-metal plate, and the non-metal plate is a plate material structure made of a non-metal material other than a glass material.
As a further improvement of the invention, the anti-explosion elastomer coating body comprises a surface layer and a reinforcing layer, the high-strength fiber layer is arranged between the surface layer and the reinforcing layer, and the surface layer and the reinforcing layer are formed by one-time spraying and are arranged in the spraying process.
As a further improvement of the invention, the thickness of the surface layer is equal to that of the reinforcing layer, and the high-strength fiber layer is arranged in the middle of the anti-explosion elastomer coating body.
As a further improvement of the invention, the thickness of the substrate part is 1.0 mm-10.0 mm.
In a further improvement of the present invention, the thickness of the coating part of the antiknock elastomer is 5.0mm to 50mm, and the thickness of the high-strength fiber layer is 0.25 mm to 1.0 mm.
As a further improvement of the invention, the paint for forming the anti-explosion elastomer coating body is a composite high-molecular chemical material containing isocyanate, and the material for forming the high-strength fiber layer is carbon fiber or Kevlar fiber or a mixed fiber formed by the carbon fiber and the Kevlar fiber.
As a further improvement of the invention, the base material part and the wall body to be reinforced form a detachable connection in a pre-tightening bolt mode.
The invention also provides an anti-explosion wall body which comprises a wall body and an anti-explosion reinforcing structure fixedly arranged on the surface of the wall body, wherein the anti-explosion reinforcing structure is the anti-explosion reinforcing structure for the wall body, and the wall body is a wall body to be reinforced.
The anti-explosion reinforcing structure for the wall body can form the anti-explosion elastomer coating part on the base material in advance under the preset processing condition, then the base material part of the anti-explosion reinforcing structure for the wall body is arranged on the wall body to be reinforced, and the traditional structure reinforcing method and the coating reinforcing method are effectively combined, so that the prefabricated anti-explosion reinforcing structure for the wall body can be directly fixed on the wall body needing to be reinforced during field construction, and the effect of reinforcing the wall body is achieved. Compared with other existing anti-explosion wall structures, the anti-explosion reinforcing structure for the wall is simple and convenient for spraying construction and installation on the wall, so that the construction cost is indirectly reduced, and impact generated by explosion can be effectively resisted.
Drawings
In order to more clearly illustrate the embodiments of the present invention 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 invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic overall structure diagram of an anti-explosion plate for a building wall according to an embodiment of the invention;
FIG. 2 is a schematic structural view of a coated portion of an antiknock elastomer according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a substrate portion according to an embodiment of the present invention.
Reference numerals: 1. a base material portion; 2. an antiknock elastomer coating portion; 21. an antiknock elastomeric coating body; 211. A surface layer; 212. a reinforcing layer; 22. a high strength fiber layer; 3. and (4) connecting the holes.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.
Referring to fig. 1 to 3, the invention provides an anti-explosion reinforcing structure for a wall, which comprises a base material part 1 and an anti-explosion elastomer coating part 2, wherein the anti-explosion reinforcing structure for the wall is connected with a wall to be reinforced through the base material part 1, and the anti-explosion elastomer coating part 2 is sprayed on the surface of the base material part 1, which is far away from the wall to be reinforced. With the adoption of the arrangement, the anti-explosion elastomer coating part 2 can be formed on the base material in advance under the preset processing condition, and then the base material part 1 of the anti-explosion reinforcing structure for the wall body is arranged on the wall body to be reinforced.
According to the invention, the traditional structure reinforcing method and the coating reinforcing method are effectively combined, the assembly line type operation can be realized under the preset processing technological conditions, such as in a stable workshop environment, and the processing environment is easy to regulate, and the anti-explosion elastomer coating part 2 is sprayed on the base material part 1 in advance to be prefabricated into the anti-explosion reinforcing structure for the wall body, so that the prefabricated anti-explosion reinforcing structure for the wall body can be directly fixed on the wall body needing to be reinforced during field construction, and the anti-explosion reinforcing effect of the wall body is achieved. The anti-explosion reinforcing structure for the wall body, which is prefabricated and formed by the invention, has light weight, the weight can be less than 25kg per square meter, the occupied effective space is small, the construction is convenient, the defects of the existing structural reinforcing method and the coating reinforcing method for reinforcing the building wall body are well overcome, the safety control requirement of anti-explosion reinforcing on the building wall body in places with explosion risk sources is met, in the reinforcing construction of the building wall body, the construction is simple, the construction cost is relatively low, the indoor effective space is saved, and the impact of shock waves generated by explosion on the building can be effectively resisted.
In this embodiment, in order to meet the situation of extreme explosion, depending on the wall structure, the base material portion 1 may be a metal plate, but is not limited to be a metal plate, and may also be a non-metal plate, or alternatively, the base material portion 1 is formed by laminating and compounding plates made of at least two materials, i.e., a metal plate or a non-metal plate. The size and shape of the base material portion 1 may be determined by evaluating the actual conditions in the field, and the shape of the base material portion 1 may be, but not limited to, a rectangle, a square, or an irregular shape cut as needed. Meanwhile, in the spraying process, a high-strength fiber material is implanted.
Specifically, referring to fig. 1, the anti-explosion elastomer coating portion 2 in the present embodiment includes an anti-explosion elastomer coating body 21 and a high-strength fiber layer 22, wherein the anti-explosion elastomer coating body 21 is a composite coating with high strength and high elasticity. The anti-explosion elastomer coating body 21 is connected with the base material part 1 in an attached mode through spraying, and the high-strength fiber layer 22 is implanted into the anti-explosion elastomer coating body 21.
According to the records of research documents of the national safety department, the explosive shock waves act on the human body for 3 milliseconds, and the damage results of the human body are shown in the following table 1:
TABLE 1
| Overpressure (MPa) of explosive shock wave | Damage to human body |
| 0.035 | Individual human eardrum is damaged |
| 0.035-0.106 | 50% of the human ear membranes are damaged |
| 0.211-0.352 | The lung of an individual can be damaged |
| 0.563-0.704 | 50% of the human lungs can be severely damaged |
| 0.704 | The individual will die |
| 0.916-1.267 | 50% of the population will die |
| ＞1.40 | All people die |
The longer the overpressure action time, the more the injury to human body
The damage of the building caused by the continuous action of the blast shock wave on the building is shown in the following table 2:
TABLE 2
From the comparison of the data it can be concluded that the blocking of blast shock waves by elastomeric materials is much more effective than that by rigid materials. Therefore, in this embodiment, the anti-explosion elastomer coating body 21 is a high-strength and high-elasticity composite coating sprayed on the substrate portion 1, that is, the high-strength and high-elasticity composite coating is directly coated on the substrate portion 1, so that the processing and the use are more convenient. Here, the paint forming the anti-knock elastomer coating body 21 is a composite polymer chemical material containing isocyanate, which may be, but not limited to, DYC paint, and may be polyurea elastomer paint. The anti-explosion effect of the invention is mainly embodied by the anti-explosion elastomer coating part with extremely high comprehensive performance, and the spraying construction of the invention can be operated and completed in stable operation environment and process environment, thereby providing the best guarantee for the coating performance of the anti-explosion reinforced structure for the wall body and simultaneously providing the guarantee for the anti-explosion effect.
The adopted high-strength high-elasticity coating is preferably DYC coating, and experimental tests are carried out on the selected high-strength high-elasticity coating (DYC-X-300 type), taking an anti-explosion elastomer coating body with the thickness of 6mm as an example, when explosion shock waves act on the coating, the impact kinetic energy is averagely attenuated by about 68 percent due to the influence of the high-strength high elasticity of the anti-explosion elastomer coating body; in the actual explosion test, the anti-explosion elastomer coating body with the thickness of 6mm is sprayed on the wall body with the thickness of 240 mm to serve as an experimental group, the 300kPa explosion shock wave acts for 50 milliseconds, the wall body is intact, the coating only has tiny cracks, and the wall body comparison group without the anti-explosion elastomer coating body completely collapses under the same overpressure action.
As shown in fig. 2, the anti-explosion elastomer coating body 21 in this embodiment includes a surface layer 211 and a reinforcing layer 212, a high-strength fiber layer 22 is placed between the surface layer 211 and the reinforcing layer 212, the surface layer 211 is sprayed on the surface of the base material portion 1, and the surface of the surface layer 211 facing away from the wall to be reinforced is paved with the high-strength fiber layer 22.
As an optional implementation mode of the embodiment of the invention, the thickness of the base material part 1 is 1.0-10.0 mm, so that under the condition of meeting the anti-explosion requirement, the cost can be saved, and the occupation of the internal space of the building can be reduced. Specifically, the thickness value of the base material portion 1 is determined by calculating the structural strength of the wall body to be reinforced. The thickness of the anti-explosion elastomer coating part 2 is 5.0 mm-50 mm, wherein the thickness of the high-strength fiber layer 22 is 0.25-1.0 mm, so that the cost is reduced on the premise of meeting the anti-explosion effect.
Further, in order to better ensure the antiknock effect, the thickness of the surface layer of the antiknock elastomer coating body 21 is substantially equal to that of the reinforcing layer, and preferably, the thickness of the surface layer of the antiknock elastomer coating body 21 is equal to that of the reinforcing layer, and the high-strength fiber layer 22 is fixedly arranged in the middle of the antiknock elastomer coating body 21. For example, when the thickness of the anti-explosion elastomer coating body 21 is 6mm, the thickness of the surface layer and the thickness of the reinforcing layer are both 3mm, during construction, the surface layer 211 with the thickness of 3mm is firstly sprayed on the surface of the base material part 1, then a layer of fiber material is put on the surface layer 211 to form the high-strength fiber layer 22 with the thickness of 0.25-1.0 mm, and finally the reinforcing layer 212 with the thickness of 3mm is sprayed on the high-strength fiber layer 22, so that the anti-explosion reinforcing structure for the wall body in the invention is finally formed.
In addition, the surface roughness of the substrate part 1 is adapted to the requirement of the spraying process of the anti-explosion elastomer coating part 2 on the surface roughness, namely the surface treatment of the substrate part 1 before the spraying construction needs to meet the requirement of the paint of the anti-explosion elastomer coating on the sprayed surface roughness, so that the adhesive force of the paint of the anti-explosion elastomer coating and the surface of the substrate part 1 is improved, and the integral anti-explosion effect of the invention is completely achieved.
Further, the connection between the base material portion 1 and the wall body to be reinforced is a bolt connection, that is, one or more connection holes 33 may be preset on the base material portion 1, as shown in fig. 3. During construction, workers can use connecting kits such as bolts, nuts and gaskets to connect and fix the anti-explosion reinforcing structure for the wall body and the wall body to be reinforced, and the anti-explosion reinforcing structure is convenient to install and use, and reliable and safe in fixing. The number of the holes and the diameter of the holes can be determined by the connecting holes 33 during design calculation according to actual scene in the field.
In addition, the invention also provides an anti-explosion wall body which comprises a wall body and an anti-explosion reinforcing structure fixedly arranged on the surface of the wall body, wherein the anti-explosion reinforcing structure is the anti-explosion reinforcing structure for the wall body, and the wall body is a wall body to be reinforced. The anti-explosion reinforcing structure in this embodiment has the same structure as the anti-explosion reinforcing structure for the wall body in the above embodiments, and functions thereof are the same, and details are not described here.
In order to meet the specific explosion condition, the base material part 1 can be made of metal plates or non-metal plates (except glass materials) according to the structural condition of the wall body, and meanwhile, a high-strength fiber material is implanted in the spraying process, wherein the high-strength fiber material in the embodiment can be carbon fiber or Kevlar fiber or mixed fiber of the carbon fiber and the Kevlar fiber, so that the wall body with the anti-explosion reinforcing structure can bear the explosion peak pressure of more than 2.0 MPa.
Further, the connection between substrate portion 1 and the wall body is detachable connection to be connected with the wall body again after substrate portion 1 and antiknock elastomer coating portion 2 compound under the preset processing condition, it is more convenient to be under construction, avoids the influence of site operation to spraying technology and coating performance, and through detachable connection between substrate portion 1 and the wall body, can realize that the wall is with convenient and effective installation of antiknock reinforced structure.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. The utility model provides an antiknock reinforced structure for wall body which characterized in that includes base material portion and antiknock elastomer coating portion, wherein:
the anti-explosion reinforcing structure for the wall is connected with the wall to be reinforced, and the anti-explosion elastomer coating part is sprayed on the surface of the base material part, which is far away from the wall to be reinforced.
2. The blast-resistant reinforced structure for the wall according to claim 1, wherein the blast-resistant elastomer coating portion includes a blast-resistant elastomer coating body and a high-strength fiber layer, the blast-resistant elastomer coating body is attached to the base material portion in a spray coating manner, and the high-strength fiber layer is implanted in the blast-resistant elastomer coating body.
3. The blast-resistant reinforced structure for walls according to claim 1 or 2, wherein the base member is made of one of a metal plate and a non-metal plate, or is made of at least two of a metal plate and a non-metal plate, and the non-metal plate is a plate structure made of a non-metal material other than glass.
4. The anti-explosion reinforced structure for the wall body according to claim 2, wherein the anti-explosion elastomer coating body comprises a surface layer and a reinforcing layer, the high-strength fiber layer is arranged between the surface layer and the reinforcing layer, and the surface layer and the reinforcing layer are formed by one-step spraying and the high-strength fiber layer is arranged in the spraying process.
5. The blast-resistant reinforced structure for the wall according to claim 4, wherein the surface layer has a thickness equal to that of the reinforcing layer, and the high-strength fiber layer is fixedly embedded in the middle of the blast-resistant elastomer coating body.
6. The blast-resistant reinforced structure for walls according to claim 1, wherein the thickness of the base material part is 1.0mm to 10.0 mm.
7. The blast-resistant reinforced structure for walls according to claim 2, wherein the thickness of the blast-resistant elastomer coating part is 5.0 to 50mm, and wherein the thickness of the high-strength fiber layer is 0.25 to 1.0 mm.
8. The anti-explosion reinforced structure for the wall body according to claim 2, wherein the paint forming the anti-explosion elastomer coating body is a composite polymer chemical material containing isocyanate, and the material forming the high-strength fiber layer is carbon fiber or Kevlar fiber or a mixed fiber formed by the carbon fiber and the Kevlar fiber.
9. The antiknock reinforcing structure for wall body according to claim 1, wherein the base material portion is detachably connected to the wall body to be reinforced by means of pre-tightened bolts.
10. An anti-explosion wall body, which is characterized by comprising a wall body and an anti-explosion reinforcing structure fixedly arranged on the surface of the wall body, wherein the anti-explosion reinforcing structure is the anti-explosion reinforcing structure for the wall body according to any one of claims 1 to 9, and the wall body is a wall body to be reinforced.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202122822657 | 2021-11-17 | ||
| CN2021228226574 | 2021-11-17 |
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| CN112282407A (en) * | 2020-09-03 | 2021-01-29 | 海洋石油工程股份有限公司 | Method for reinforcing industrial anti-explosion wall structure |
| CN212507031U (en) * | 2020-03-02 | 2021-02-09 | 上海腾喜建筑工程有限公司 | Fireproof and anti-explosion wall for enhancing polyurea elastic coating |
| WO2021100899A1 (en) * | 2019-11-18 | 2021-05-27 | 송준혁 | Composite elastomer composition, structural reinforcement layer, and construction method using composite elastomer composition |
| CN214365116U (en) * | 2020-10-20 | 2021-10-08 | 青岛市人民防空办公室 | Civil air defense engineering basement shear force wall reinforced structure that shocks resistance |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107386749A (en) * | 2017-09-13 | 2017-11-24 | 沈阳建筑大学 | A kind of lightweight power consumption fire-proof and explosion-proof wall of cracking resistance |
| KR20200117342A (en) * | 2019-04-04 | 2020-10-14 | 송준혁 | Reinforced concrete strengthened of by composite elastomer |
| CN110359594A (en) * | 2019-07-02 | 2019-10-22 | 山东三达科技发展有限公司 | A kind of antiknock Hong wall body structure and construction method, test device and method |
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| WO2021100899A1 (en) * | 2019-11-18 | 2021-05-27 | 송준혁 | Composite elastomer composition, structural reinforcement layer, and construction method using composite elastomer composition |
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| CN112282407A (en) * | 2020-09-03 | 2021-01-29 | 海洋石油工程股份有限公司 | Method for reinforcing industrial anti-explosion wall structure |
| CN214365116U (en) * | 2020-10-20 | 2021-10-08 | 青岛市人民防空办公室 | Civil air defense engineering basement shear force wall reinforced structure that shocks resistance |
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