Building structure resistant to blast impact and method for its construction

Abstract

The application provides an anti-gas explosion impact building structure, comprising: a building foundation; a building side facade fixed on the building foundation to enclose a building indoor area; wherein the building side facade is composed of multiple reinforced steel columns and multiple building wallboards arranged alternately; the building wallboard comprises: two steel structure corrugated plates, and a reinforcing layer and an explosion-proof layer stacked between the two steel structure corrugated plates; a building roof made of two steel structure corrugated plates and an explosion-proof layer arranged between the two steel structure corrugated plates, and the building roof is fixed on the building side facade. The anti-gas explosion impact building structure and the construction method thereof improve the structural strength and the overturning resistance of the anti-gas explosion impact building structure by fixing the reinforced steel columns on the building foundation, the building wallboards and the building roof arranged at the top of the building side facade formed by the reinforced steel columns and the building wallboards, and solve the problems of low building structure strength, easy overturning and weak explosion resistance in the prior art.

Description

Technical Field

[0001] This invention relates to the field of explosion-proof technology, specifically to a building structure resistant to gas explosion impact and a construction method for such a building structure. Background Technology

[0002] Explosions are one of the common disasters in the petrochemical industry, and the prediction and protection against explosion damage is an important research topic in the field of petrochemical safety today.

[0003] The high temperature, high pressure, high blockage, and large size of petrochemical plants result in enormous VCE (vapor cloud explosion) gas explosion energy. This often leads to severe damage to important buildings such as control rooms, operator rooms, and equipment rooms around the plant, as well as adjacent tank areas, easily causing mass casualties in nearby areas. Currently, buildings occupied by personnel in refining and chemical enterprises generally pose a significant risk due to their lack of explosion-proof design. Typically, only the central control room and some combined unit control rooms are designed to be explosion-proof, while office buildings and operator rooms are generally not designed to be explosion-proof as a whole. Explosion-proof walls are only installed on the side of these buildings facing the petrochemical plant. These buildings are mostly brick-concrete structures with low structural strength, weak explosion resistance, and a high risk of collapse. In the event of an explosion, they are highly susceptible to collapse due to the blast wave, causing significant loss of life and property. Therefore, there is an urgent need for an explosion-proof building structure to address the problem of weak explosion resistance in these buildings. Summary of the Invention

[0004] The purpose of this invention is to address the problems of low structural strength, easy overturning, and weak explosion resistance in some existing building structures by providing a gas explosion-resistant building structure and a construction method for such a structure.

[0005] To achieve the above objectives, in a first aspect of the present invention, a building structure resistant to gas explosion impact is provided, comprising: a building foundation; a building side facade, fixed to the building foundation and enclosing to form an interior area of ​​the building; wherein the building side facade is composed of multiple alternating reinforced steel columns and multiple building wall panels, the building wall panels comprising: two corrugated steel structural plates, and a reinforcing layer and an explosion-proof layer stacked between the two corrugated steel structural plates; and a building roof slab, made of two corrugated steel structural plates and an explosion-proof layer disposed between the two corrugated steel structural plates, the building roof slab being fixed to the building side facade.

[0006] Specifically, it also includes: multiple connecting piers embedded in the building foundation, each connecting pier having an mounting surface, and a reinforcing steel column fixed on the mounting surface of each connecting pier.

[0007] Specifically, the connecting pier is made of multiple welded steel sections.

[0008] Specifically, it also includes: multiple reinforcing ribs, with multiple reinforcing ribs fixed on the side opposite to the mounting surface of each connecting pier.

[0009] Specifically, it also includes multiple fibers wrapped around each of the reinforcing ribs.

[0010] Specifically, each building wall panel further includes an adhesive layer disposed between the reinforcing layer and the explosion-proof layer.

[0011] Specifically, the building roof slab also includes a reinforcing layer disposed between the two corrugated steel structure plates.

[0012] Specifically, the explosion-proof layer is made of a first component and a second component, wherein the volume ratio of the first component to the second component is 0.75-1.15:1;

[0013] The mass percentages of each component in the first component are as follows: toluene diisocyanate 22%-38%, pentaerythritol 53%-72%, and polyether ester 9%-18%.

[0014] The mass percentages of each component in the second component are: diethylaminoethanol 11%-26%, flexible amine 28%-87%, flame retardant 7%-15%, and antioxidant 8%-18%.

[0015] Specifically, it also includes a fire-resistant layer coated on the surface of each reinforced steel column.

[0016] In another aspect, the present invention provides a construction method for a building structure resistant to gas explosion impact, the construction method comprising:

[0017] S1) Excavate to form a building foundation pit of a predetermined depth;

[0018] S2) Pour concrete into the building foundation pit to form the building foundation;

[0019] S3) A building side facade is formed on the building foundation, and the building side facade is fixed on the building foundation to enclose and form the building interior area; wherein the building side facade is composed of multiple alternating reinforced steel columns and multiple building wall panels, and the building wall panels include: two steel structure corrugated plates, and a reinforcing layer and an explosion-proof layer stacked between the two steel structure corrugated plates.

[0020] S4) A building roof slab is formed on the side facade of the building, the building roof slab being made of two steel corrugated plates and an explosion-proof layer disposed between the two steel corrugated plates.

[0021] Specifically, in step S3), before the concrete in the building foundation pit solidifies, multiple connecting piers are embedded in the building foundation. Each connecting pier has an installation surface, and a reinforcing steel column is fixed on the installation surface of each connecting pier.

[0022] Specifically, before embedding the connecting pier into the building foundation, multiple reinforcing ribs are fixed on the side of the connecting pier opposite to its installation surface.

[0023] The gas explosion-resistant building structure provided by this invention consists of multiple alternating reinforcing steel columns fixed to the building foundation, with building wall panels fixed between adjacent reinforcing steel columns. The multiple reinforcing steel columns and multiple building wall panels form the building's side facade, and a building roof slab is fixed at the top of the building's side facade. To improve the building's structural strength and explosion resistance, the building wall panels are made of a reinforcing layer and an explosion-proof layer stacked between two corrugated steel structural plates, and the building roof slab is made of an explosion-proof layer set between two corrugated steel structural plates. The reinforcing steel columns fixed to the building foundation strengthen the skeleton structure of the gas explosion-resistant building structure, and the layered building wall panels and building roof slab improve the building's structural strength. This invention also provides a construction method for the gas explosion-resistant building structure.

[0024] The gas explosion-resistant building structure and its construction method provided by this invention improve the structural strength of the gas explosion-resistant building structure by fixing reinforcing steel columns and building wall panels on the building foundation and setting a building roof plate at the top of the building side facade formed by the reinforcing steel columns and building wall panels. This solves the problems of low structural strength, easy overturning, and weak explosion resistance in the prior art.

[0025] Other features and advantages of the embodiments of the present invention will be described in detail in the following detailed description section. Attached Figure Description

[0026] The accompanying drawings are provided to further illustrate embodiments of the present invention and form part of the specification. They are used together with the following detailed description to explain the embodiments of the present invention, but do not constitute a limitation thereof. In the drawings:

[0027] Figure 1 This is a schematic diagram of a gas explosion-resistant building structure provided in one embodiment of the present invention;

[0028] Figure 2 This is a schematic diagram of the structure of a building wall panel in a gas explosion-resistant building structure provided by one embodiment of the present invention;

[0029] Figure 3 This is a schematic diagram of the roof slab of a building structure resistant to gas explosion impact provided by one embodiment of the present invention;

[0030] Figure 4 This is a top view of a reinforced steel column on a building foundation in a gas explosion-resistant building structure provided by one embodiment of the present invention.

[0031] Figure 5 This is a structural schematic diagram of reinforced steel columns and connecting piers in a gas explosion-resistant building structure provided by one embodiment of the present invention;

[0032] Figure 6 This is a cross-sectional schematic diagram of a corrugated steel plate in a gas explosion-resistant building structure provided by one embodiment of the present invention;

[0033] Figure 7 This is a schematic diagram of the reinforcing ribs in a gas explosion-resistant building structure provided by one embodiment of the present invention;

[0034] Figure 8 yes Figure 1 A cross-sectional view of the foundation of a building structure resistant to gas explosion impact.

[0035] Explanation of reference numerals in the attached figures

[0036] 1. Building foundation 2. Reinforced steel columns

[0037] 3. Building wall panels 4. Building roof panels

[0038] 5 Connecting pier; 6 Reinforcing bar

[0039] 7. Mesh fiber layer 31. Corrugated steel structure plate

[0040] 32 Reinforcement layer 33 Explosion-proof layer Detailed Implementation

[0041] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0042] In embodiments of the present invention, unless otherwise stated, directional terms such as "upper," "lower," "top," and "bottom" are generally used to describe the relative positional relationships of components in relation to the directions shown in the accompanying drawings or in relation to the vertical, perpendicular, or gravitational directions.

[0043] Figure 1 This is a schematic diagram of a gas explosion-resistant building structure provided in one embodiment of the present invention; Figure 2 This is a structural diagram of a building wall panel in a building structure resistant to gas explosion impact; Figure 3 This is a structural diagram of the roof slab in a building structure resistant to gas explosion impacts. (Example:) Figures 1-3As shown, in a first aspect of the present invention, a building structure resistant to gas explosion impact is provided, comprising: a building foundation 1; a building side facade, fixed on the building foundation 1 to enclose an interior area of ​​the building; wherein the building side facade is composed of multiple alternating reinforcing steel columns 2 and multiple building wall panels 3, the building wall panel 3 comprising: two steel corrugated plates 31, and a reinforcing layer 32 and an explosion-proof layer 33 stacked between the two steel corrugated plates 31; a building roof slab 4, made of two steel corrugated plates 31 and an explosion-proof layer 33 disposed between the two steel corrugated plates 31, the building roof slab 4 being fixed on the building side facade.

[0044] The present invention provides a gas explosion-resistant building structure. Construction involves pouring concrete into a foundation 1 at the construction site. A pre-determined depth foundation pit is excavated at the construction location, and then concrete is poured into the pit to form the foundation 1. To ensure good overturning resistance, the concrete poured into the foundation pit is fiber-reinforced concrete. The mass percentages of the components in the fiber-reinforced concrete are: silicate cement 25%-32%, quartz sand 30%-35%, glass fiber 3.6%-12.5%, basalt fiber 0.1-0.3%, carbon fiber 0.05%-0.15%, silica fume 8.5%-15.0%, and water 6%-20%. To enhance the crack resistance of the foundation 1, [further details are needed]. Figure 8 As shown, a mesh fiber layer 7 is filled into the fiber-reinforced concrete. The mesh fiber layer 7 is woven from multiple explosion-proof fibers. During the construction of the building foundation 1, a layer of mesh fiber layer 7 is laid immediately after each layer of fiber-reinforced concrete of a given thickness is poured into the foundation pit. This process is repeated, resulting in multiple layers of mesh fiber layer 7 within the formed building foundation 1. The mesh fiber layer 7 strengthens the crack resistance of the building foundation 1. The depth of the foundation pit is usually set between 1m and 5m, and the length-to-width ratio of the foundation pit is set between 0.5 and 2:1 to ensure the overturning moment M generated by the building foundation 1. h >c×Me, where c is a constant 1.5-3, and Me is the overturning moment generated by the explosion. The building foundation 1 is used to fix the building side facade to enclose the building interior area. The building side facade includes multiple reinforcing steel columns 2 and multiple building wall panels 3. The multiple reinforcing steel columns 2 are fixed at intervals on the building foundation 1. A building wall panel 3 is fixed between every two adjacent reinforcing steel columns 2, and a building roof slab 4 is fixed at the top of the building side facade. The multiple reinforcing steel columns 2 serve as the skeleton of the building structure resisting gas explosion impact, thereby strengthening the building structure resisting gas explosion impact.

[0045] To further enhance the building's blast resistance, a reinforcing layer 32 and an explosion-proof layer 33 are installed between two corrugated steel panels 31 to form a building wall panel 3. The corrugated steel panels 31 can be made of any of the following materials: Q235, Q255, Q275, Q295, Q345, and Q390. The thickness of the corrugated steel panels 31 is between 1.5mm and 8mm. Figure 6 As shown, the cross-sectional shape of the steel corrugated plate 31 is a continuous isosceles trapezoid. The angle α between the waistline and the trough of the isosceles trapezoid is between 30° and 60°, and the angle β between the waistline and the crest is between 120° and 150°. For any isosceles trapezoid, the crest length is L1, the trough length is L3, and the waistline length is L2, where L1 = L3, and L1:L2 = 1 to 3:1. The reinforcing layer 32 is formed by concrete pouring, and its thickness is between 10mm and 50mm. The explosion-proof layer 33 is made of polyurea explosion-proof material. The thickness of the wall panel 3 is between 3mm and 10mm. The structural strength and toughness of the building wall panel 3 are enhanced by the layered arrangement of the corrugated steel structure plate 31, the reinforcing layer 32, and the explosion-proof layer 33, which strengthens the explosion resistance of the building wall panel 3. The building roof panel 4 is made by setting the explosion-proof layer 33 between two corrugated steel structure plates 31, which enhances the structural strength and toughness of the building roof panel 4 and strengthens the explosion resistance of the building roof panel 4. The gas explosion impact resistant building structure provided by the present invention solves the problems of low building structure strength, easy overturning, and weak explosion resistance in the prior art.

[0046] To securely fix the building wall panel 3 to the two adjacent reinforcing steel columns 2, the two corrugated steel plates 31 in the building wall panel 3 are fixed to the reinforcing steel columns 2 by welding. The reinforcing layer 32 and the explosion-proof layer 33 in the building wall panel 3 are fixed to the reinforcing steel columns 2 by bonding. The two corrugated steel plates 31 in the building roof panel 4 are fixed to the top of the reinforcing steel columns 2 by welding. The explosion-proof layer 33 in the building roof panel 4 is fixed to the reinforcing steel columns 2 by bonding. By selecting different fixing methods for different materials, the connection between the building wall panel 3 and the building roof panel 4 and the reinforcing steel columns 2 can be made more secure, thereby improving the overall strength and explosion resistance of the building structure against gas explosion impacts.

[0047] In one embodiment, to further enhance the structural strength of the gas explosion-resistant building structure and improve its blast resistance, the gas explosion-resistant building structure further includes: multiple connecting piers 5 embedded in the building foundation 1, each connecting pier 5 having an mounting surface, and a reinforcing steel column 2 fixed to the mounting surface of each connecting pier 5. To facilitate the manufacturing of the connecting piers 5, the connecting piers 5 are welded from multiple steel sections. The connecting piers 5 can also be formed by casting. The cross-section of the connecting piers 5 embedded in the building foundation 1 is larger than the cross-section of the reinforcing steel column 2. Figure 4As shown, the aspect ratio d:e of the cross-section of the connecting pier 5 is 0.8 to 1.5:1. Reinforcing steel columns 2 are fixed to the connecting pier 5 to make the fixing of the reinforcing steel columns 2 more secure. To further securely fix the connecting pier 5 to the building foundation 1, multiple reinforcing ribs 6 are fixed on the side of each connecting pier 5 opposite to its installation surface. To ensure that the reinforcing ribs 6 are firmly embedded in the building foundation 1 to strengthen the connection between the connecting pier 5 and the building foundation 1, as shown... Figure 7 As shown, multiple fibers are wound around each reinforcing rib 6. To improve the deformation resistance of the reinforcing rib 6, fibers with different elastic moduli can be wound around it. For example, one fiber wound around the reinforcing rib 6 can be defined as a first-level fiber with an elastic modulus of 40 GPa-80 GPa. The ratio of the elastic modulus of the Nth-level fiber to that of the (N-1)th-level fiber is 1.0-8.5, where N = 3-8. The diameter ratio of the reinforcing rib 6 to the first-level fiber is 3.0-7.5, and the diameter ratio of the Nth-level fiber to that of the (N-1)th-level fiber is 0.3-0.8, where N = 3-8. The helical angle θ of the first-level fiber is 5°-10°, and the helical angle of the Nth-level fiber is increased by 2°-8° compared to the (N-1)th-level auxiliary fiber, where N = 3-8. Each connecting pier 5 has at least 12-24 reinforcing ribs 6 fixed on it, with each reinforcing rib 6 having a diameter between φ8mm and φ16mm. The connecting piers 5 can be pre-installed in the foundation pit after construction but before concrete pouring, or they can be embedded in the foundation 1 after concrete pouring but before it hardens. To further enhance the connection strength between the connecting piers 5 and the foundation 1, such as... Figure 5 As shown, each reinforcing bar 6 embedded in the building foundation 1 is bent at the end away from the connecting pier 5, thereby enhancing the connection strength between the connecting pier 5 and the building foundation 1.

[0048] In the process of manufacturing building wall panels 3, in order to enhance the bonding force between the reinforcing layer 32 and the explosion-proof layer 33, each building wall panel 3 further includes an adhesive layer. The adhesive layer is disposed between the reinforcing layer 32 and the explosion-proof layer 33. After the adhesive layer is attached to the surface where the reinforcing layer 32 and the explosion-proof layer 33 are bonded, polyurea explosion-proof material is sprayed onto the reinforcing layer 32 with the adhesive layer attached to form the explosion-proof layer 33. The bonding force between the reinforcing layer 32 and the explosion-proof layer 33 is enhanced by the adhesive layer. The adhesive layer is a mesh structure made of fiber-reinforced composite material.

[0049] Specifically, the building roof slab 4 further includes a reinforcing layer disposed between the two steel corrugated plates 31. In the process of manufacturing the building roof slab 4, in order to enhance the strength and toughness of the explosion-proof layer 33 between the two steel corrugated plates 31 in the building roof slab 4, a reinforcing layer is set inside the explosion-proof layer 33. The reinforcing layer can be made of fiber-reinforced composite material woven into a mesh structure. Polyurea explosion-proof material is sprayed on the reinforcing layer to form the explosion-proof layer 33. The reinforcing layer can be multi-layered, and the explosion-proof layer 33 can be set to multiple layers according to the number of reinforcing layers. For example, after spraying polyurea explosion-proof material to a predetermined thickness on both sides of the reinforcing layer to form the explosion-proof layer 33, another reinforcing layer is laid on the explosion-proof layer 33 formed by spraying. Then, polyurea explosion-proof material is sprayed again on the subsequently laid reinforcing layer to form the explosion-proof layer 33. This process is repeated until the design requirements are met. The reinforcing layer accounts for 5%-30% of the volume of the explosion-proof layer 33. By setting a reinforcing layer inside the explosion-proof layer 33 of the building roof slab 4, the bonding force of the explosion-proof layer 33 is strengthened, the strength and toughness of the building roof slab 4 are enhanced, and the explosion resistance of the building roof slab 4 can be effectively improved.

[0050] In one embodiment, the explosion-proof layer 33 is made of a first component and a second component, wherein the volume ratio of the first component to the second component is 0.75-1.15:1; wherein the mass percentage of each component in the first component is: toluene diisocyanate 22%-38%, pentaerythritol 53%-72%, and polyether ester 9%-18%; and the mass percentage of each component in the second component is: diethylaminoethanol 11%-26%, flexible amine 28%-87%, flame retardant 7%-15%, and antioxidant 8%-18%. The explosion-proof layer 33 made of the first and second components has a thickness of 3mm-10mm, a tensile strength of 20-50MPa, an elongation at break of 150%-350%, and a tear strength of 80N / mm-150N / mm. Compared with the building structures in the prior art, the explosion-proof layer 33 provided in this application can effectively improve the explosion resistance of the building.

[0051] During an explosion, combustion usually occurs. To prevent further damage, specifically, a refractory layer is applied to the surface of each reinforcing steel column 2. A refractory material is coated onto the surface of each reinforcing steel column 2 to form a refractory layer with a thickness between 8mm and 45mm. This refractory material coating on the surface of the reinforcing steel column 2 prevents further secondary damage caused by combustion during the explosion.

[0052] In another aspect, the present invention provides a construction method for a building structure resistant to gas explosion impact, the construction method comprising:

[0053] S1) Excavate to form a building foundation pit of a predetermined depth;

[0054] S2) Pour concrete into the building foundation pit to form the building foundation 1;

[0055] S3) A building side facade is formed on the building foundation 1, and the building side facade is fixed on the building foundation 1 to enclose the building interior area; wherein the building side facade is composed of multiple alternating reinforcing steel columns 2 and multiple building wall panels 3, and the building wall panel 3 includes: two steel structure corrugated plates 31, and a reinforcing layer 32 and an explosion-proof layer 33 stacked between the two steel structure corrugated plates 31;

[0056] S4) A building roof slab 4 is formed on the side facade of the building. The building roof slab 4 is made of two steel corrugated plates 31 and an explosion-proof layer 33 disposed between the two steel corrugated plates 31.

[0057] This invention provides a construction method for a building structure resistant to gas explosion impact. A foundation pit is excavated at the construction site, with a predetermined depth between 1m and 5m and a length-to-width ratio of 0.5 to 2:1. After excavation, fiber-reinforced concrete is poured into the foundation pit to form the building foundation 1. Before pouring concrete into the foundation pit or before the concrete in the foundation pit has solidified, multiple connecting piers 5 are pre-embedded in the foundation pit or into the unsolidified concrete. Each connecting pier 5 has an mounting surface, and a reinforcing steel column 2 is fixed to the mounting surface of each connecting pier 5. After the concrete in the foundation pit solidifies, the connecting piers 5 and the building foundation 1 become integrated. To strengthen the connection between the connecting pier 5 and the building foundation 1, multiple reinforcing ribs 6 are fixed on the side of the connecting pier 5 opposite to its installation surface before it is embedded in the building foundation 1. These reinforcing ribs 6 strengthen the connection between the connecting pier 5 and the building foundation 1. Reinforcing steel columns 2 are fixed to the installation surface of the connecting pier 5, and a building wall panel 3 is fixed between every two adjacent reinforcing steel columns 2. Multiple reinforcing steel columns 2 and multiple building wall panels 3 form the building's side facade, which encloses the building's interior area. A building roof slab 4 is then constructed at the top of the building's side facade. By using the construction method for gas explosion-resistant building structures provided by this invention, the problem of low strength and weak explosion resistance in existing building structures can be solved.

[0058] The gas explosion-resistant building structure provided by this invention consists of multiple alternating reinforcing steel columns fixed to the building foundation, with building wall panels fixed between adjacent reinforcing steel columns. The multiple reinforcing steel columns and multiple building wall panels form the building's side facade, and a building roof slab is fixed at the top of the building's side facade. To improve the building's structural strength and explosion resistance, the building wall panels are made of a reinforcing layer and an explosion-proof layer stacked between two corrugated steel structural plates, and the building roof slab is made of an explosion-proof layer set between two corrugated steel structural plates. The reinforcing steel columns fixed to the building foundation strengthen the skeleton structure of the gas explosion-resistant building structure, and the layered building wall panels and building roof slab improve the building's structural strength. This invention also provides a construction method for the gas explosion-resistant building structure.

[0059] The gas explosion-resistant building structure and its construction method provided by this invention improve the structural strength of the gas explosion-resistant building structure by fixing reinforcing steel columns and building wall panels on the building foundation and setting a building roof plate at the top of the building side facade formed by the reinforcing steel columns and building wall panels. This solves the problems of low structural strength, easy overturning, and weak explosion resistance in the prior art.

[0060] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, and these simple modifications all fall within the protection scope of the present invention.

[0061] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present invention will not describe the various possible combinations separately.

[0062] Those skilled in the art will understand that all or part of the steps in the methods of the above embodiments can be implemented by a program instructing related hardware. This program is stored in a storage medium and includes several instructions to cause a microcontroller, chip, or processor to execute all or part of the steps of the methods described in the various embodiments of the present invention. The aforementioned storage medium includes various media capable of storing program code, such as a USB flash drive, a portable hard drive, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

[0063] Furthermore, various different embodiments of the present invention can be combined in any way, as long as they do not violate the spirit of the embodiments of the present invention, they should also be regarded as the content disclosed by the embodiments of the present invention.

Claims

1. A building structure resistant to gas explosion impact, characterized in that, include: Building foundation (1); The building's side facade is fixed to the building foundation (1) and encloses the building's interior area; The building side facade is composed of multiple alternating reinforced steel columns (2) and multiple building wall panels (3); each building wall panel (3) includes: two steel structure corrugated plates (31), and a reinforcing layer (32) and an explosion-proof layer (33) stacked between the two steel structure corrugated plates (31); The building roof slab (4) is made of two steel corrugated plates (31) and an explosion-proof layer (33) set between the two steel corrugated plates (31). The building roof slab (4) is fixed to the side facade of the building.

2. The gas explosion-resistant building structure according to claim 1, characterized in that, Also includes: Multiple connecting piers (5) are embedded in the building foundation (1), each connecting pier (5) has an installation surface, and a reinforcing steel column (2) is fixed on the installation surface of each connecting pier (5).

3. The gas explosion-resistant building structure according to claim 2, characterized in that, The connecting pier (5) is made of multiple steel sections welded together.

4. The gas explosion-resistant building structure according to claim 2, characterized in that, Also includes: Multiple reinforcing ribs (6) are fixed on the side opposite to the mounting surface of each connecting pier (5).

5. The gas explosion-resistant building structure according to claim 4, characterized in that, Also includes: Multiple fibers wrapped around each of the reinforcing ribs (6).

6. The gas explosion-resistant building structure according to claim 1, characterized in that, Each building wall panel (3) further includes an adhesive layer disposed between the reinforcing layer (32) and the explosion-proof layer (33).

7. The gas explosion-resistant building structure according to claim 1, characterized in that, The building roof slab (4) also includes a reinforcing layer disposed between the two steel corrugated plates (31).

8. The gas explosion-resistant building structure according to claim 1, characterized in that, The explosion-proof layer (33) is made of a first component and a second component, wherein the volume ratio of the first component to the second component is 0.75-1.15:1; The mass percentages of each component in the first component are as follows: toluene diisocyanate 22%-38%, pentaerythritol 53%-72%, and polyether ester 9%-18%. The mass percentages of each component in the second component are: diethylaminoethanol 11%-26%, flexible amine 28%-87%, flame retardant 7%-15%, and antioxidant 8%-18%.

9. The gas explosion-resistant building structure according to claim 1, characterized in that, Also includes: A fire-resistant layer is applied to the surface of each reinforced steel column (2).

10. A construction method for a building structure resistant to gas explosion impact, characterized in that, The construction method includes: S1) Excavate to form a building foundation pit of a predetermined depth; S2) Pour concrete into the building foundation pit to form the building foundation (1); S3) A building side facade is formed on the building foundation (1), and the building side facade is fixed on the building foundation (1) to enclose and form the building interior area; wherein the building side facade is composed of multiple alternating reinforced steel columns (2) and multiple building wall panels (3), and the building wall panel (3) includes: two steel structure corrugated plates (31), and a reinforcing layer (32) and an explosion-proof layer (33) stacked between the two steel structure corrugated plates (31); S4) A building roof slab (4) is formed on the side facade of the building. The building roof slab (4) is made of two steel corrugated plates (31) and an explosion-proof layer (33) disposed between the two steel corrugated plates (31).

11. The construction method for a gas explosion-resistant building structure according to claim 10, characterized in that, In step S3), before the concrete in the building foundation pit solidifies, multiple connecting piers (5) are embedded in the building foundation (1). Each connecting pier (5) has an installation surface, and a reinforcing steel column (2) is fixed on the installation surface of each connecting pier (5).

12. The construction method for a gas explosion-resistant building structure according to claim 11, characterized in that, Before embedding the connecting pier (5) into the building foundation (1), fix multiple reinforcing bars (6) on the side of the connecting pier (5) opposite to its installation surface.

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