CN110952686B - Emergent antiknock wall body - Google Patents
Emergent antiknock wall body Download PDFInfo
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- CN110952686B CN110952686B CN201911060428.4A CN201911060428A CN110952686B CN 110952686 B CN110952686 B CN 110952686B CN 201911060428 A CN201911060428 A CN 201911060428A CN 110952686 B CN110952686 B CN 110952686B
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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
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
- E04B2/84—Walls made by casting, pouring, or tamping in situ
- E04B2/86—Walls made by casting, pouring, or tamping in situ made in permanent forms
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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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- Architecture (AREA)
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- Emergency Management (AREA)
- Environmental & Geological Engineering (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Abstract
The invention provides an emergency anti-explosion wall. This emergent antiknock wall body includes: the frame wall body, the two supporting bodies and the base; the frame wall and the two supports are both arranged on the base; the two support bodies are respectively and symmetrically arranged on two sides of the frame wall body; the frame wall body includes: a front frame panel and a rear frame panel; a cavity is arranged between the front frame plate and the rear frame plate; the cavity is filled with flexible materials; a front fiber layer is arranged on the outer surface of the front frame plate; a rear fiber layer is arranged on the outer surface of the rear frame plate; the support body includes: the damper comprises a support column and two dampers arranged in the support column; the bottoms of the support column and the two dampers are connected with the base; the two dampers are respectively arranged in the columnar cavities at the two ends of the supporting column; the outer walls of the supporting column and the damper are provided with notches for the front fiber layer or the rear fiber layer to pass through; the damper is fixedly connected with one end of the front fiber layer or the rear fiber layer. The invention can effectively improve the anti-explosion and anti-impact performance of the wall.
Description
Technical Field
The application relates to the technical field of explosion prevention and impact prevention, in particular to an emergency anti-explosion wall.
Background
Since the introduction of thermal weapons into the military, explosives have essentially dominated modern war. However, as terrorists become increasingly rampant, explosives are also often used in terrorist activities.
Therefore, for some specific important buildings, such as military bases, nuclear power plants, refuges, embassy, and other national important institutions, the loss caused by the buildings is difficult to estimate once the buildings are lost. Therefore, special anti-knock designs for these buildings are needed to enhance the safety of the buildings. However, the research on buildings in explosion at home and abroad is not complete at present, and the research is mainly focused on military buildings, petrochemical industry and other flammable and explosive industries, but no complete specifications are provided for common civil buildings and non-structural buildings such as doors and windows.
At present, the main ideas of the antiknock design in the prior art are: the impact caused by the explosion is fully borne by the concrete or the steel plate. However, in order to completely resist the destructive force of explosion, the wall thickness of the rigid wall is generally very thick, and the anti-explosion effect is not obvious. In addition, the over-thick wall body is easy to form a weak surface at the joint due to over self weight, and the wall body is easy to collapse after explosion to cause secondary damage.
Many scholars at home and abroad study the anti-explosion performance of different materials to replace the traditional steel structure and concrete structure. At present, the focus of domestic and foreign research is to design the wall body into a multilayer composite structure by adopting porous materials or light materials. The main materials are as follows: rigid polyurethane foam, polypropylene fiber, steel fiber, foamed aluminum, rubber concrete, high-resistance concrete and the like.
Disclosure of Invention
In view of the above, the invention provides an emergency anti-explosion wall body, so that the anti-explosion and anti-impact performance of the wall body can be effectively improved.
The technical scheme of the invention is realized as follows:
an emergency blast resistant wall, comprising: the frame wall body, the two supporting bodies and the base;
the frame wall and the two support bodies are arranged on the base;
the two support bodies are respectively and symmetrically arranged on two sides of the frame wall body;
the frame wall includes: a front frame panel and a rear frame panel; a cavity is arranged between the front frame plate and the rear frame plate; the cavity is filled with flexible materials; a front fiber layer is arranged on the outer surface of the front frame plate; a rear fiber layer is arranged on the outer surface of the rear frame plate;
the support body includes: the damper comprises a support column and two dampers arranged in the support column;
the bottoms of the support column and the two dampers are connected with the base;
the two dampers are respectively arranged in the columnar cavities at the two ends of the supporting column;
the outer walls of the supporting column and the damper are provided with notches for the front fiber layer or the rear fiber layer to pass through;
the damper is fixedly connected with one end of the front fiber layer or the rear fiber layer.
Preferably, the damper includes: an outer barrel, a rotating shaft and at least one blade;
the rotating shaft is arranged at the central shaft of the outer barrel and can rotate around the central shaft; the bottoms of the outer barrel and the rotating shaft are both connected with a base; damping liquid is filled in a cavity between the outer cylinder and the rotating shaft; the blades are uniformly arranged on the rotating shaft, and one end of each blade is fixedly connected with the rotating shaft;
the outer wall of the outer barrel is provided with a notch for the front fiber layer or the rear fiber layer to pass through;
the rotating shaft is fixedly connected with one end of the front fiber layer or the rear fiber layer.
Preferably, a torsion spring is further arranged in the damper;
the torsional spring encircles on the center pin, the length of torsional spring with the length of center pin is the same, just one end of torsional spring is fixed on the center pin, and the other end is fixed on the internal surface of axis of rotation.
Preferably, the front fiber layer and the rear fiber layer are made of fiber-reinforced composite material fiber cloth;
the fiber reinforced composite material fiber cloth is any one of aramid fiber reinforced composite material fiber cloth, glass fiber reinforced composite material fiber cloth, basalt fiber reinforced composite material fiber cloth and carbon fiber reinforced composite material fiber cloth.
Preferably, the front frame plate and the rear frame plate are made of thin steel plate, polyvinyl chloride material, fiber reinforced composite material plate or wood plate.
Preferably, the flexible material is lightweight concrete, rubber concrete, high-damping concrete, foamed aluminum, non-Newtonian liquid, fine sand particles, rubber plates or lead plates.
Preferably, two sides of the support column are respectively provided with a prestressed reinforcement.
Preferably, one or more reinforcing sheets are arranged at the top and the bottom of the supporting column.
Preferably, the emergency anti-explosion wall further comprises: a top plate;
the top plate is arranged on the top of the frame wall and the top of the two supporting bodies.
Preferably, the outer surface of the front fiber layer and the outer surface of the rear fiber layer are provided with outer coating layers.
As can be seen from the above, in the emergency anti-explosion wall body of the present invention, since the fiber layer (for example, FRP fiber cloth) and the flexible material are combined with each other to fully exert their respective abilities, and the FRP fiber cloth is combined with the damper, the damper is rotated to consume energy while being tensile; meanwhile, the support body can be fixed on the ground by adopting prestress, and can play a role in buffering impact force while being fixed. Therefore, the integral force transmission path of the emergency anti-explosion wall body is a shock wave-FRP fiber cloth-frame plate-flexible material-FRP fiber cloth-damper-support column-prestress system, so that the energy of the explosion shock wave can be absorbed and consumed layer by layer through the integral energy transmission system, the expected protection effect can be achieved, and the anti-explosion and anti-impact performance of the wall body can be effectively improved.
Drawings
Fig. 1 is a side sectional view of an emergency blast resistant wall in an embodiment of the present invention.
Fig. 2 is a top sectional view of an emergency blast resistant wall in an embodiment of the present invention.
Fig. 3 is a partially enlarged schematic view of the emergency blast-resistant wall body of fig. 2.
Fig. 4 is a front sectional view of an emergency blast resistant wall in an embodiment of the present invention.
Detailed Description
In order to make the technical scheme and advantages of the invention more apparent, the invention is further described in detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1 to 4, the emergency anti-explosion wall in the embodiment of the present invention includes: a frame wall 11, two supports 12 and a base 13;
the frame wall 11 and the two supports 12 are both arranged on the base 13;
the two supporting bodies 13 are respectively and symmetrically arranged on two sides of the frame wall 11;
the framed wall 11 includes: a front frame plate 111 and a rear frame plate 112; a cavity 113 is arranged between the front frame plate 111 and the rear frame plate 112; the cavity 113 is filled with a flexible material 114; a front fiber layer 115 is disposed on an outer surface of the front frame plate 111; a rear fabric layer 116 is disposed on an outer surface of the rear frame panel 112;
the support body 12 includes: a support column 121 and two dampers 122 provided in the support column 121;
the bottoms of the supporting column 121 and the two dampers 122 are connected with the base 13;
the two dampers 122 are respectively arranged in the cylindrical cavities at the two ends of the supporting column 121;
the outer walls of the supporting column 121 and the damper 122 are provided with notches for the front fiber layer 115 or the rear fiber layer 116 to pass through;
the damper 122 is fixedly connected to one end of the front fiber layer 115 or the rear fiber layer 116.
In addition, in the technical solution of the present invention, there are many implementation manners of the damper, and a specific implementation manner of the damper will be taken as an example to describe the technical solution of the present invention in detail.
For example, in a preferred embodiment of the invention,
the damper 122 includes: an outer cylinder 21, a rotating shaft 26 and at least one vane 23;
the rotating shaft 26 is provided at the central shaft 22 of the outer cylinder 21 and is rotatable around the central shaft 22; the bottoms of the outer cylinder 21 and the rotating shaft 26 are both connected with a base 13; a cavity between the outer cylinder 21 and the rotating shaft 26 is filled with damping fluid 24; the blades 23 are uniformly arranged on the rotating shaft 26, and one end of each blade 23 is fixedly connected with the rotating shaft 26;
the outer wall of the outer cylinder 21 is provided with a cut through which the front fiber layer 115 or the rear fiber layer 116 passes;
the rotating shaft 26 is fixedly connected to one end of the front fiber layer 115 or the rear fiber layer 116.
In addition, as an example, in a preferred embodiment of the present invention, the front Fiber layer and the rear Fiber layer may be made of Fiber Reinforced Plastic (FRP) Fiber cloth, so that the FRP Fiber cloth has high strength to bear the tensile stress caused by the large impact during the explosion process, and absorb and dissipate the energy of the shock wave.
Specifically, the FRP fiber cloth may be any one of fiber cloths such as an aramid fiber reinforced composite (AFRP) fiber cloth, a glass fiber reinforced composite (GFRP) fiber cloth, a basalt fiber reinforced composite (BFRP) fiber cloth, and a carbon fiber reinforced Composite (CFRP) fiber cloth.
In the technical scheme of the invention, because the fiber layers (namely the front fiber layer and the rear fiber layer) are respectively arranged at the front and the rear of the frame wall body, and the two ends of the fiber layers are respectively and fixedly connected with the dampers in the supporting body, when the frame wall body is impacted by explosion shock waves and the like, the front fiber layer and the rear fiber layer arranged at the front and the rear of the frame wall body can bear the tensile stress caused by huge impact force by utilizing the characteristic of high strength, are subjected to tensile deformation under the action of the tensile stress, absorb and consume part of energy of the explosion shock waves, can transmit the received tensile force into the dampers, pull the rotating shaft in the dampers to rotate, drive the blades on the rotating shaft to rotate in damping liquid, and further absorb and consume the energy of the explosion shock waves in the dampers. In addition, the front fiber layer and the rear fiber layer can also bear the bulging effect of the frame wall body after compression deformation, and a net bag is formed by the elasticity of the fiber layers to hold the flexible materials in the frame wall body.
In addition, as the flexible material is filled between the front frame plate and the rear frame plate in the emergency anti-explosion wall body, the characteristics of large deformation and large compression of the flexible material under the impact action can be utilized to bear the pressure generated by the explosion shock wave, the extrusion deformation is generated under the high pressure action, the explosion shock response is uniformly transmitted to the rear frame plate, and partial energy of the explosion shock wave is absorbed and consumed in the extrusion deformation.
In addition, as an example, in a preferred embodiment of the present invention, a torsion spring 25 is further disposed in the damper; the torsion spring 25 surrounds the central shaft 22, the length of the torsion spring 25 is the same as that of the central shaft 22, one end of the torsion spring 25 is fixed on the central shaft 22, and the other end of the torsion spring 25 is fixed on the inner surface of the rotating shaft 26.
In a preferred embodiment of the present invention, one end of the fiber layer (e.g., the front fiber layer or the rear fiber layer) may be wound around the rotating shaft 26. Therefore, when the front fiber layer or the rear fiber layer is stretched, the fiber layer wound around the rotating shaft 26 rotates the rotating shaft 26. Since the bottom of the central shaft 22 is fixedly connected to the base, the relative rotation between the central shaft 22 and the rotation shaft 26 will cause the torsion spring 25 to elastically deform, and the elasticity of the torsion spring will enable the damper to return after it has acted.
In addition, as an example, in a preferred embodiment of the present invention, the front frame plate and the rear frame plate may be made of thin steel plate, polyvinyl chloride (PVC) material, FRP plate material, or wood plate material.
Therefore, the front frame plate and the rear frame plate in the emergency anti-explosion wall body of the invention can provide a container for the flexible material inside the frame wall body and play a role in supporting the flexible material. When the front frame plate and the rear frame plate are subjected to impact forces such as explosion shock waves, the flexible materials can be extruded through deformation of the front frame plate and the rear frame plate, certain lateral rigidity and certain in-plane rigidity are provided for the frame wall, and the frame wall can be used normally.
In addition, in the technical scheme of the invention, the frame wall can be an integral frame wall or an assembly frame wall according to the size of the frame wall required by the practical application environment. When the required frame wall is not large in size, the integral frame wall can be adopted and directly transported to the field for installation after the factory processing is finished. When the required frame wall is large in size, the assembly type frame wall can be adopted, the whole frame wall is divided into a plurality of small blocks, and the small blocks are produced and manufactured in a factory and then transported to the site for assembly.
In addition, in the technical scheme of the invention, the flexible material is a material with the characteristics of light weight, high deformation, high damping, porosity, looseness and the like. Thus, by way of example, in a preferred embodiment of the present invention, the flexible material may be lightweight concrete, rubber concrete, high-damping concrete, foamed aluminum, non-newtonian liquids, fine sand particles, rubber slabs or lead slabs. According to the requirement of actual conditions, in emergency, the flexible material can be obtained on site, and materials such as sand, stone, soil particles and the like are used as the flexible material for filling.
When the flexible material is subjected to impact force such as explosion shock waves, the flexible material is extruded under the action of the impact force, originally dispersed flexible particles are extruded together, so that intermolecular force and extrusion force can be utilized for balancing, and finally energy is dissipated through heat. In addition, the granular flexible materials rub against each other under the violent movement, and most of the energy of the shock wave can be consumed by the friction between the granules and between the panels. In addition, the flexible material can play a role in supporting the cavity while consuming energy.
In addition, as an example, in a preferred embodiment of the present invention, the supporting column may be made of steel or the like.
In addition, as an example, in a preferred embodiment of the present invention, the two sides of the supporting column 121 may be respectively provided with a prestressed reinforcement 31, so that the supporting column may be reinforced.
In addition, in a preferred embodiment of the present invention, the support column may be in a dumbbell shape, two ends of the support column are cylinders, and a cylindrical cavity is disposed in the cylinders to provide a space for placing the damper.
In addition, as an example, in a preferred embodiment of the present invention, the top and the bottom of the supporting column are provided with one or more reinforcing sheets for reinforcing the strength of the supporting column.
Therefore, in the technical scheme of the invention, the support column can provide support for the frame wall and the damper and provide a frame for the wall, so that the wall can not collapse in explosion.
In addition, as an example, in a preferred embodiment of the present invention, a first fixing bolt may be disposed on the base for fixing the supporting pillar to the base.
In addition, as an example, in a preferred embodiment of the present invention, a second fixing bolt 32 may be further disposed on the base for fixedly connecting the base with an embedded part 33 disposed on the ground, so that the base can be fixedly connected with the ground.
In addition, as an example, in a preferred embodiment of the present invention, the embedded part on the ground may be a ground anchor, a bolt or a prestressed steel bar. For example, when using prestressed reinforcement, the support column may be firmly fixed to the ground by the prestress of the prestressed reinforcement. Therefore, the base can ensure the stability of the supporting system.
In addition, as an example, in a preferred embodiment of the present invention, the emergency blast-resistant wall further includes: a top plate 14; the top plate 14 is arranged on the top of the frame wall 11 and the two supporting bodies 12.
In addition, as an example, in a preferred embodiment of the present invention, the outer cylinder and the rotating shaft of the damper may be made of steel or other materials.
In addition, as an example, in a preferred embodiment of the present invention, the damping fluid may be a fluid having high damping such as hydraulic oil.
Further, as an example, in a preferred embodiment of the present invention, an outer coating layer may be provided on the outer surface of the front fiber layer and the rear fiber layer, that is, the outer surface of the front fiber layer and the rear fiber layer is provided with an outer coating layer, according to the needs of the actual situation.
For example, in a preferred embodiment of the present invention, the outer coating layer may be a decorative layer, an exterior decorative hanging board (e.g., a poster board with patterns, etc.), or a polyurea explosion-proof coating layer coated on the outer surface to increase the explosion-proof performance.
In summary, in the technical solution of the present invention, since the fiber layers are disposed at the front and the rear of the frame wall, and the two ends of the fiber layers are respectively and fixedly connected to the dampers in the support body, when receiving impact forces such as explosion shock waves, the fiber layers disposed at the front and the rear of the frame wall can bear tensile stress caused by huge impact forces by using the characteristics of high strength, and are pulled to deform under the action of tensile stress to absorb and consume some energy of the explosion shock waves, and can also transmit the tensile stress received into the dampers to pull the rotating shafts in the dampers to rotate, so as to drive the blades on the rotating shafts to move in the damping fluid, thereby further absorbing and consuming the energy of the explosion shock waves in the dampers. In addition, the front fiber layer and the rear fiber layer can also bear the bulging effect of the frame wall body after compression deformation, and a net bag is formed by the elasticity of the fiber layers to hold the flexible materials in the frame wall body.
In addition, as the flexible material is filled between the front frame plate and the rear frame plate in the emergency anti-explosion wall body, the characteristic that the flexible material is greatly deformed and compressed under the impact action can be utilized to bear the pressure generated by the explosion shock wave, the high extrusion deformation is generated under the high pressure action, the explosion shock response is uniformly transmitted to the rear frame plate, and most energy of the explosion shock wave is absorbed and consumed in the extrusion deformation.
Meanwhile, the front frame plate and the rear frame plate in the emergency anti-explosion wall body can provide a container for the flexible material in the frame wall body, and play a role in supporting the flexible material. When the front frame plate and the rear frame plate are subjected to impact forces such as explosion shock waves, the flexible materials can be extruded through deformation of the front frame plate and the rear frame plate, certain lateral rigidity and certain in-plane rigidity are provided for the frame wall, and the frame wall can be used normally.
In addition, the support columns in the support body can provide support for the frame wall and the damper and provide a frame for the wall, so that the wall can not collapse in explosion.
Therefore, the emergency anti-explosion wall body disclosed by the invention combines the fiber layer (such as FRP fiber cloth) and the flexible material with each other to fully exert respective capabilities, and combines the FRP fiber cloth and the damper, so that the damper is rotated to consume energy while the emergency anti-explosion wall body is tensile; meanwhile, the support body can be fixed on the ground by adopting prestress, and can play a role in buffering impact force while being fixed. Therefore, the integral force transmission path of the emergency anti-explosion wall body is a shock wave-FRP fiber cloth-frame plate-flexible material-FRP fiber cloth-damper-support column-prestress system, so that the energy of the explosion shock wave can be absorbed and consumed layer by layer through the integral energy transmission system, the expected protection effect can be achieved, and the anti-explosion and anti-impact performance of the wall body can be effectively improved.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (9)
1. An emergent antiknock wall body, its characterized in that, this emergent antiknock wall body includes: the frame wall body, the two supporting bodies and the base;
the frame wall and the two support bodies are arranged on the base;
the two support bodies are respectively and symmetrically arranged on two sides of the frame wall body;
the frame wall includes: a front frame panel and a rear frame panel; a cavity is arranged between the front frame plate and the rear frame plate; the cavity is filled with flexible materials; a front fiber layer is arranged on the outer surface of the front frame plate; a rear fiber layer is arranged on the outer surface of the rear frame plate;
the support body includes: the damper comprises a support column and two dampers arranged in the support column;
the bottoms of the support column and the two dampers are connected with the base;
the two dampers are respectively arranged in the columnar cavities at the two ends of the supporting column;
the outer walls of the supporting column and the damper are provided with notches for the front fiber layer or the rear fiber layer to pass through;
the damper is fixedly connected with one end of the front fiber layer or the rear fiber layer;
wherein the damper includes: an outer barrel, a rotating shaft and at least one blade;
the rotating shaft is arranged at the central shaft of the outer barrel and can rotate around the central shaft; the bottoms of the outer barrel and the rotating shaft are both connected with a base; damping liquid is filled in a cavity between the outer cylinder and the rotating shaft; the blades are uniformly arranged on the rotating shaft, and one end of each blade is fixedly connected with the rotating shaft;
the outer wall of the outer barrel is provided with a notch for the front fiber layer or the rear fiber layer to pass through;
the rotating shaft is fixedly connected with one end of the front fiber layer or the rear fiber layer.
2. The emergency anti-knock wall of claim 1, wherein: a torsion spring is also arranged in the damper;
the torsional spring encircles on the center pin, the length of torsional spring with the length of center pin is the same, just one end of torsional spring is fixed on the center pin, and the other end is fixed on the internal surface of axis of rotation.
3. The emergency anti-knock wall of claim 1, wherein:
the front fiber layer and the rear fiber layer are made of fiber reinforced composite material fiber cloth;
the fiber reinforced composite material fiber cloth is any one of aramid fiber reinforced composite material fiber cloth, glass fiber reinforced composite material fiber cloth, basalt fiber reinforced composite material fiber cloth and carbon fiber reinforced composite material fiber cloth.
4. The emergency anti-knock wall of claim 1, wherein:
the front frame plate and the rear frame plate are made of thin steel plates, polyvinyl chloride materials, fiber reinforced composite material plates or wood plates.
5. The emergency anti-knock wall of claim 1, wherein:
the flexible material is light concrete, rubber concrete, high-damping concrete, foamed aluminum, non-Newtonian liquid, fine sand particles, a rubber plate or a lead plate.
6. The emergency anti-knock wall of claim 1, wherein:
and prestressed steel bars are respectively arranged on two sides of the supporting column.
7. The emergency anti-knock wall of claim 1, wherein:
one or more reinforcing sheets are arranged at the top and the bottom of the supporting column.
8. The emergency blast resistant wall of claim 1, further comprising: a top plate;
the top plate is arranged on the top of the frame wall and the top of the two supporting bodies.
9. The emergency anti-knock wall of claim 1, wherein:
and outer coatings are arranged on the outer surfaces of the front fiber layer and the rear fiber layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911060428.4A CN110952686B (en) | 2019-11-01 | 2019-11-01 | Emergent antiknock wall body |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911060428.4A CN110952686B (en) | 2019-11-01 | 2019-11-01 | Emergent antiknock wall body |
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| CN110952686A CN110952686A (en) | 2020-04-03 |
| CN110952686B true CN110952686B (en) | 2021-09-14 |
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| CN111424839B (en) * | 2020-05-07 | 2021-12-17 | 福建长宏建材有限公司 | Autoclaved aerated concrete explosion venting plate and manufacturing method thereof |
| CN113338689B (en) * | 2021-06-15 | 2022-05-24 | 中建八局第三建设有限公司 | Construction method of arch structure dispersion layer |
| CN114412008B (en) * | 2022-02-17 | 2023-09-26 | 盐城工学院 | Metal-free prefabricated cement sheet composite wall |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2777092Y (en) * | 2005-01-05 | 2006-05-03 | 昆明康立信电子机械有限公司 | Antiriot composite wall |
| CN201952936U (en) * | 2010-12-10 | 2011-08-31 | 同济大学 | Novel core-sandwiched explosion-proof and bulletproof wall |
| RU2622265C1 (en) * | 2016-05-10 | 2017-06-13 | Олег Савельевич Кочетов | Counter-explosion kochetov's panel with combined damper element |
| CN206769106U (en) * | 2017-06-01 | 2017-12-19 | 沈阳建筑大学 | A kind of assembled steel fiber high strength concrete steel plate combination Antiknock wall body |
| CN207672792U (en) * | 2017-09-13 | 2018-07-31 | 沈阳建筑大学 | High strength anti-explosion wall with cushion performance |
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