A warehouse structure and construction method thereof for reducing the scattering range of explosion fragments
By using prefabricated steel fiber concrete blocks to assemble the wall in the explosive warehouse and combining the design of a lightweight intercolumn cable-stayed system, the problem of large fragment dispersion range during internal explosion is solved, and the impact of explosion is reduced from the root, and the safety and economicality of the warehouse is improved.
Patent Information
- Application Number
- CN202410956058.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-17
- Publication Date
- 2025-03-21
- Estimated Expiration
- 2044-07-17
AI Technical Summary
When the existing explosive warehouse structure explodes, the debris spreads quickly and has a long distance, resulting in serious secondary damage. Most of the existing protective measures are additional settings, which fails to reduce the impact of the explosion from the root.
The wall is assembled with prefabricated steel fiber concrete blocks, and the wall is supported inwardly through a lightweight intercolumn cable-stayed system to form a high-strength structure with weak component connections, reducing the range of explosive debris thrown.
Through a fast construction method with low cost, the internal explosion debris spreading speed and impact range are significantly reduced, and the safety and economicality of explosive warehouses are improved.
Smart Images

Figure CN118601135B_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of safety engineering, and in particular relates to a warehouse structure capable of reducing the scattering range of explosion fragments and a construction method thereof. Background Art
[0002] With the continuous expansion of urban construction, the safety protection of explosive warehouses is increasingly difficult to meet regulatory requirements. The internal explosion of explosive warehouses caused by accidents will produce three hazards including air shock waves, ground shock and explosion fragments. At present, the common structural form of explosive warehouses is the integral cast reinforced concrete structure. When an internal explosion occurs, the warehouse structure will also produce a large amount of fragments. The steel bars in the wall will first store energy to form a "slingshot effect" to accelerate the ejection of concrete fragments, and then they will break and form fragments.
[0003] The safety protection method recommended by the Civil Explosive Engineering Design Safety Standard (GB 50089-2018) is to set up protective barriers (natural or artificial retaining walls) around explosive warehouses. With the continuous development of materials science, in addition to traditional rock and soil explosion-proof retaining walls and reinforced concrete explosion-proof retaining walls, various new materials and new structural forms have been applied to explosion-proof retaining walls, such as: the new explosion-proof wall structures such as multi-layer composite explosion-proof retaining walls, guardrail explosion-proof walls, and net explosion-proof walls proposed in the papers "Analysis of the explosion-proof energy absorption effect of three explosion-proof partition walls in confined spaces", "Analysis of the protective effect of steel plate-sand-steel plate composite explosion-proof walls against explosion shock waves", and "Research on the protection effect and design method of mesh explosion-proof walls". However, if the location of the explosion-proof wall is improperly set, it may cause a greater shock wave overpressure with a wall than without a wall, causing greater harm. At the same time, the additional protective retaining wall will increase the number of scattered fragments, causing greater secondary damage. The article "Analysis of Key Factors of Safe Distance of Earth-covered Ammunition Depots" proposes to transform the original warehouse structure into an earth-covered depot structure by covering with earth. Although covering with earth can reduce the impact of explosion shock waves and explosion debris on surrounding personnel and facilities, and has certain economic advantages, covering with earth strengthens the constraints on the structure, making the load waveform more complex, resulting in a very high peak pressure of the shock wave. In addition, the methods proposed in patents such as a high-performance bionic explosion-proof wall (CN103981962B), an assembled explosion-proof and explosion-reducing wall and its construction method (CN108442573B), and an assembled steel fiber high-strength concrete steel plate combined explosion-proof wall (CN206769106U) are mainly suitable for protection against small-equivalent terrorist attacks, and can only be set on the protected buildings, and cannot reduce the impact of the explosion from the root.
[0004] In summary, although the existing protective barriers can reduce the impact range of debris scattering to a certain extent, they are ineffective for explosive warehouses with high storage density and large equivalent. Improper barrier setting may increase the number of scattered fragments and aggravate the hazards of accidental internal explosions. At the same time, the existing methods are mostly additional protective structures, or protective structures set on buildings that need to be protected, and do not optimize the design from the perspective of the explosive warehouse structure itself to reduce the hazards of internal explosions. Therefore, it is urgent to optimize the structure of the explosive warehouse to reduce the impact of the explosion from the root. Summary of the invention
[0005] The present invention provides a warehouse structure and a construction method thereof which can reduce the range of scattering of explosion fragments. Based on the design concept of "warehouse overall assembly, high strength of masonry blocks, and weak connection of components", the wall is assembled by prefabricated steel fiber concrete blocks, and then the wall is supported by a lightweight inter-column inclined-stayed system, so as to avoid the situation in which the fragments of explosive warehouses are scattered quickly, over a long distance, and with great secondary damage under the action of internal explosion.
[0006] To achieve the above object, the present invention is implemented by adopting the following technical solutions:
[0007] In a first aspect, the present invention provides a warehouse structure for reducing the scattering range of explosion fragments, characterized in that it comprises: prefabricated columns, assembled walls, prefabricated roof panels, and an inter-column diagonal system;
[0008] The assembled wall comprises a plurality of prefabricated steel fiber concrete blocks spliced at different joints, and the multi-faceted assembled wall forms an explosive storage space;
[0009] The prefabricated columns are arranged at the connection of two adjacent assembled walls, and the prefabricated columns are higher than the assembled walls;
[0010] The prefabricated top plate covers the top of each prefabricated column;
[0011] The inter-column inclined-stayed system comprises carbon fiber ropes cross-arranged between every two adjacent prefabricated columns.
[0012] Optionally, the material of the steel fiber concrete prefabricated block includes concrete and steel fiber;
[0013] The steel fiber concrete prefabricated block has two specifications, namely prefabricated block 1 and prefabricated block 2. The volume of the prefabricated block 1 is l*b*h , and in l / 4 and 3 l / 4 are respectively provided with a diameter of d The volume of the prefabricated block 2 is l / 2* b*h , and in l / 4 along the height direction, a diameter ofd through holes, where l is the length of the steel fiber concrete prefabricated block, b is the thickness of the steel fiber concrete precast block, h is the height of the steel fiber concrete precast block;
[0014] The prefabricated block 1 and the prefabricated block 2 are bonded together by an organic adhesive, and the through holes in each of the prefabricated block 1 and the prefabricated block 2 are all connected in the height direction of the assembled wall, and the organic adhesive is injected into the through holes.
[0015] Optionally, the material of the steel fiber concrete prefabricated block also includes hydrophobic material, which is used to transform the assembled wall into a hydrophobic wall.
[0016] Optionally, the prefabricated columns are heavy steel structures, and their burial depth is 1 / 3 to 1 / 2 of the height above the ground;
[0017] The buried depths of the prefabricated columns on the same side of the warehouse central axis are the same, and the buried depth difference of the prefabricated columns on different sides is adjusted according to the drainage requirements of the prefabricated roof;
[0018] The length and width of the prefabricated columns are b , it is bonded to the assembled wall through an organic adhesive.
[0019] Optionally, the prefabricated columns are evenly erected at the central axis of the warehouse to strengthen the support of the prefabricated top plate in the internal space of the warehouse, and steel beams are erected between the prefabricated columns.
[0020] Optionally, the prefabricated top plate is a light steel structure;
[0021] The prefabricated top plate is connected to the prefabricated columns through pre-buried anchor bolts, and is bonded to the assembled wall through an organic adhesive.
[0022] Optionally, both ends of the carbon fiber rope are tied with end hooks, and the prefabricated column is embedded with a plurality of hanging rings, and the carbon fiber rope is connected to the hanging rings on the prefabricated column through the end hooks.
[0023] Optionally, the warehouse structure further includes a warehouse door and a load-bearing beam on the door;
[0024] The height of the warehouse door is an integer multiple of the height of the steel fiber concrete prefabricated block;
[0025] The thickness of the load-bearing cross beam on the door is consistent with the thickness of the steel fiber concrete prefabricated block, the height is an integer multiple of the height of the steel fiber concrete prefabricated block, and the load-bearing length is 2 to 3 times the load-bearing length of the warehouse door.
[0026] In a second aspect, the present invention provides a method for constructing a warehouse structure for reducing the scattering range of explosion fragments, comprising:
[0027] Step 1: Arrange the column spacing at the construction site according to the design requirements, and install the prefabricated columns after drilling according to the preset burial depth;
[0028] Step 2: Between two adjacent prefabricated columns, two types of steel fiber concrete prefabricated blocks are staggered and spliced by organic adhesive to form a staggered spliced assembled wall, wherein the two types of steel fiber concrete prefabricated blocks include prefabricated block 1 and prefabricated block 2, and the volume of prefabricated block 1 is l*b*h , and in l / 4 and 3 l / 4 are respectively provided with a diameter of d The volume of the prefabricated block 2 is l / 2* b*h , and in l / 4 along the height direction, a diameter of d through holes, where l is the length of the steel fiber concrete prefabricated block, b is the thickness of the steel fiber concrete precast block, h is the height of the steel fiber concrete precast block;
[0029] Step 3: The other assembled walls are assembled according to the method in step 2. When assembling the assembled wall on the exit side, reserve space for the warehouse door and the load-bearing beam on the door. After the steel fiber concrete prefabricated blocks on this side are spliced, assemble the load-bearing beam on the door at the reserved door top elevation, and install the warehouse door under the load-bearing beam on the door;
[0030] Step 4: After all the assembled walls are assembled, an organic adhesive is injected into each through hole in the assembled wall;
[0031] Step 5: Cross-connect the two carbon fiber ropes to the hanging rings on the prefabricated columns through the end hooks tied at both ends;
[0032] Step 6: Connect the prefabricated top plate to each prefabricated column through anchor bolts.
[0033] Optionally, the specific construction method of step 2 includes:
[0034] Between two adjacent prefabricated columns, two types of steel fiber concrete prefabricated blocks are staggered and spliced in reverse order along two opposite sides by organic adhesives. The remaining space between the two adjacent prefabricated columns is l Specification-compliant prefabricated steel fiber concrete blocks and organic adhesives are spliced and filled to form an assembled wall.
[0035] Compared with the prior art, the present invention has the following beneficial effects:
[0036] 1. Based on the idea of "warehouse overall assembly, high strength of masonry blocks, and weak component connections", steel fiber concrete prefabricated blocks are used to assemble walls, prefabricated columns and prefabricated top plates are used to quickly assemble and construct explosive warehouses, and an inter-column inclined-stayed system is used to provide inward support for the assembled walls. This can not only achieve rapid construction in a low-cost manner, but also fundamentally reduce the scattering speed and impact range of internal explosion fragments, thereby improving the safety and economy of explosive warehouses;
[0037] 2. Using organic adhesives to bond components can not only save steel bars and enhance the integrity of the wall, but also quickly soften under the high temperature of the explosion, which is conducive to rapid failure and weakening of the integrity of the wall during internal explosion, further reducing the distance of fragment scattering and avoiding the generation of secondary fragments. After the overall structure is assembled with organic adhesives, it can be quickly put into use;
[0038] 3. Adding steel fiber and hydrophobic material to the ordinary concrete mix can not only significantly improve the strength of the concrete, but also transform the hydrophilic surface into a hydrophobic surface, which can reduce rainwater infiltration and erosion, improve durability, and the addition of steel fiber makes the wall have good bulletproof ability, avoiding the explosion of explosive warehouses caused by stray bullets in extreme cases;
[0039] 4. The heavy steel structure is used as the prefabricated column, which not only has high strength, but also can be set to different burial depths according to actual conditions to improve stability. The burial depths of the prefabricated columns on different sides can be adjusted to adjust the height of the prefabricated columns on both sides above the ground, so that the prefabricated top plate can be horizontal or inclined to meet the needs of rainfall drainage;
[0040] 5. Using light steel structure as prefabricated roof can not only ensure good structural bearing capacity but also reduce the load on the top of the warehouse;
[0041] 6. The load-bearing length of the load-bearing beam on the door is about 2 to 3 times the load-bearing length of the warehouse door, which can effectively reduce the deflection and improve the load-bearing performance. BRIEF DESCRIPTION OF THE DRAWINGS
[0042] Figure 1 Shown is a schematic diagram of a warehouse structure in an embodiment of the present invention;
[0043] Figure 2 It is a schematic diagram of a structure in which prefabricated columns are added at the central axis of a warehouse to form a double-sloped roof in one embodiment of the present invention;
[0044] Figure 3 The figure shows a schematic diagram of an assembly structure of an assembled wall and prefabricated columns in one embodiment of the present invention;
[0045] Figure 4The figure shows a schematic diagram of the assembly structure of the prefabricated columns and the inter-column inclined-stayed system in one embodiment of the present invention;
[0046] Figure 5 Shown is a schematic diagram of a structure of a prefabricated block in an embodiment of the present invention;
[0047] Figure 6 The figure shows a schematic diagram of the structure of the second prefabricated block in one embodiment of the present invention;
[0048] Figure 7 The figure shows a schematic diagram of the assembly structure of a carbon fiber rope and an end hook in one embodiment of the present invention;
[0049] Figure 8 Shown is a schematic diagram of a numerical calculation curve of the mass distribution of explosion fragments in different wall structures in an embodiment of the present invention.
[0050] In the figure: 1. Prefabricated columns; 2. Assembled walls; 2-1. Prefabricated block 1; 2-2. Prefabricated block 2; 3. Prefabricated top plate; 4. Inter-column inclined-stayed system; 4-1. Carbon fiber rope; 4-2. End hook; 4-3. Hanging ring; 5. Load-bearing beam on the door; 6. Warehouse door;
[0051] 7. Steel beam. DETAILED DESCRIPTION
[0052] The present invention will be further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and cannot be used to limit the protection scope of the present invention.
[0053] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and the like are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", and the like may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.
[0054] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.
[0055] Example 1
[0056] like Figure 1 As shown, this embodiment provides a warehouse structure for reducing the scattering range of explosion fragments, characterized in that it includes: prefabricated columns 1, assembled walls 2, prefabricated roof 3 and inter-column inclined-stayed system 4;
[0057] The assembled wall 2 comprises a plurality of prefabricated steel fiber concrete blocks spliced at different joints, and the multi-faceted assembled wall 2 forms an explosive storage space;
[0058] The prefabricated columns 1 are arranged at the connection between two adjacent assembled walls 2, and the prefabricated columns 1 are higher than the assembled walls 2;
[0059] The prefabricated top plate 3 covers the top of each prefabricated column 1;
[0060] The inter-column inclined-stayed system 4 includes carbon fiber ropes 4 - 1 cross-arranged between every two adjacent prefabricated columns 1 .
[0061] Based on the idea of "whole-piece assembly of warehouse, high strength of masonry blocks, and weak connection of components", super-hydrophobic steel fiber concrete prefabricated blocks are used to assemble walls 2, prefabricated columns 1, lightweight prefabricated top plates 3, and inter-column diagonal-stayed systems 4, etc., to quickly assemble and construct an explosive warehouse. This is efficient and convenient, and can significantly shorten the construction period. The use of prefabricated assembly technology can also improve construction efficiency and save costs. The inter-column diagonal-stayed system 4 provides inward support for the assembled wall 2, stabilizes the wall composed of prefabricated masonry blocks, and reduces the distance of explosion fragments.
[0062] Example 2
[0063] Based on Example 1, this example also makes the following design.
[0064] The assembled wall 2 is assembled from super-hydrophobic steel fiber concrete prefabricated blocks. The super-hydrophobic steel fiber concrete prefabricated blocks are prepared by adding steel fibers and nano-super-hydrophobic particles (such as fluorosilane, graphene oxide, nano-silicon dioxide and other nanomaterials) into ordinary high-strength concrete mix, and then poured into a special mold to prepare two specifications of super-hydrophobic steel fiber concrete prefabricated blocks.
[0065] Steel fiber can significantly improve the strength of concrete, and nano-superhydrophobic particles can transform the hydrophilic surface into a hydrophobic surface, which can effectively reduce the impact of rainfall on explosive warehouses and improve environmental applicability. In addition, the addition of steel fiber can also improve the wall's anti-penetration ability and avoid internal explosions caused by stray bullets penetrating the wall.
[0066] like Figure 5 and Figure 6 As shown, the two specifications of steel fiber concrete prefabricated blocks are prefabricated block 1 2-1 and prefabricated block 2-2, which are used for quick splicing of staggered joints on the wall. The specifications are unified, which is convenient for quick replacement in the later maintenance process. The length of prefabricated block 1 2-1 is l , thickness is b , the height is h , respectively l / 4 and 3 l The reserved diameter along the height direction at / 4 is d The round hole is usually 20~30mm; the length of the prefabricated block 2-2 is l / 2, thickness is b , the height is h ,exist l The reserved diameter along the height direction at / 4 is d The round hole is usually 20~30mm, of which the thickness of the prefabricated block is b It can be determined according to the specific construction environment and load, so that the single-layer prefabricated blocks can meet the bearing requirements.
[0067] like Figure 3 As shown, after the staggered splicing is completed, all the reserved through holes overlap and penetrate in the height direction, and an organic binder is injected therein to further enhance the integrity of the spliced wall 2. The injected organic binder has a tensile strength of 5-10 MPa by adjusting the ratio. The organic binder can be polyurethane, polyurea, or epoxy resin. The organic binder has the characteristics of rapid coagulation and can be quickly put into use after the assembly is completed. The organic binder will be rapidly thermally decomposed under high temperature (>150°C), which is conducive to rapid failure under the high temperature of the internal explosion, weakening the integrity of the wall, reducing the distance of fragment scattering, and avoiding the generation of secondary fragments.
[0068] The prefabricated columns 1 can be high-strength steel columns or high-strength steel tube concrete columns. To ensure their stability, the buried depth is about 1 / 3 to 1 / 2 of the height above the ground. The use of high-strength steel columns or high-strength steel tube concrete columns by the prefabricated columns 1 can effectively prevent the column structure from being scattered by fragments under the action of explosive loads. If the internal space span of the warehouse is large, prefabricated columns 1 are evenly added at the central axis of the warehouse, and steel beams 7 are arranged between the prefabricated columns 1 to shorten the span and improve the bearing capacity of the prefabricated top plate 3.
[0069] like Figure 4 As shown, in order to enhance the integrity and prevent the steel fiber concrete prefabricated block wall from losing stability under lateral loads (such as wind loads and collision loads), the columns are connected by an inter-column cable-stayed system 4. Figure 6 As shown, the inter-column inclined-stay system 4 includes a carbon fiber rope 4-1, an end hook 4-2, and a hanging ring 4-3 embedded in the prefabricated column 1. The carbon fiber rope 4-1 and the end hook 4-2 are connected in a binding form, which can be applied to any column distance. It can effectively prevent the wall from inward instability under extreme wind loads, and can quickly fail when an internal explosion load acts to avoid the "slingshot effect" that ejects the wall, reducing secondary damage.
[0070] The prefabricated top plate 3 is made of a steel frame lightweight concrete plate or a steel plate sandwich composite plate, wherein the steel frame lightweight concrete plate is composed of a high-strength steel frame embedded between two layers of lightweight concrete sandwich plates, and the steel plate-surfaced sandwich composite plate is composed of a 2-3 mm steel plate on the upper and lower layers, and a 50-80 mm polystyrene foam filled in the middle. After the assembly of the assembled wall 2 is completed, the prefabricated top plate 3 is assembled, and the connection between the prefabricated top plate 3 and the prefabricated column 1 can be connected by pre-buried anchor bolts, and the assembly wall 2 is bonded with a quick-setting organic adhesive such as polyurethane and epoxy resin.
[0071] In order to take into account the requirements of snow load and rainfall drainage, the buried depth of the prefabricated columns 1 on one side can be adjusted, that is, the height above the ground of the prefabricated columns 1 on one side can be increased to make the prefabricated top plate 3 form a single-slope roof, or the height above the ground of the prefabricated columns 1 added at the central axis of the warehouse can be increased, and two prefabricated top plates 3 can be assembled on the top of the warehouse to adapt to the height difference between the prefabricated columns 1 on each side to form a double-slope roof, such as Figure 2 shown.
[0072] The load-bearing cross beam 5 on the door is made of high-strength steel or square steel tube concrete, and its thickness is consistent with the height of the super-hydrophobic steel fiber concrete prefabricated block, which is convenient for smooth splicing of the wall. The length of the load-bearing cross beam 5 on the door is about 2 to 3 times the width of the warehouse door 6, that is, it extends 0.5 to 1 times on both sides of the warehouse door 6, which is convenient for reducing disturbance and improving bearing performance.
[0073] like Figure 8 As shown, internal explosion simulation tests were carried out on the traditional wall structure and the assembled wall 2 structure in the present invention, and a fragment scattering distance curve was obtained. It can be seen from the curve that when the assembled wall 2 in the present invention explodes internally, the maximum scattering distance of the fragments is much smaller than that of the traditional reinforced concrete wall, and the safety is obviously superior.
[0074] Example 3
[0075] This embodiment provides a method for constructing a warehouse structure that reduces the range of explosion fragments, including:
[0076] Step 1: prefabricate a certain number of super-hydrophobic steel fiber concrete prefabricated blocks 1 2-1, prefabricated blocks 2-2, prefabricated top plates 3, prefabricated columns 1 and other prefabricated components in a prefabrication factory according to design requirements, and transport them to a leveled construction site;
[0077] Step 1: Arrange the column spacing at the construction site according to the design requirements, drill holes to the embedding depth, and install and fix the prefabricated columns 1;
[0078] Step 2: between two adjacent prefabricated columns 1, along two opposite sides, prefabricated block 1 2-1 and prefabricated block 2-2 are alternately spliced in reverse order by organic adhesive, and the remaining space between the two adjacent prefabricated columns 1 is spliced and filled by prefabricated block 1 and organic adhesive to form an assembled wall 2;
[0079] Step 3: The other assembled walls 2 are assembled according to the method in step 2. When assembling the assembled wall 2 on the exit side, reserve space for the warehouse door 6 and the load-bearing beam on the door. After the steel fiber concrete prefabricated blocks on this side are spliced, assemble the load-bearing beam 5 on the door at the reserved door top elevation, and install the warehouse door 6 below the load-bearing beam 5 on the door.
[0080] Step 4: After all the assembled walls 2 are assembled, an organic adhesive is injected into each through hole at the top of each assembled wall 2;
[0081] Step 5: Cross-connect the two carbon fiber ropes 4-1 to the hanging rings 4-3 on the prefabricated column 1 through the end hooks 4-2 tied at both ends;
[0082] Step six: connect the prefabricated top plate 3 to each prefabricated column 1 through anchor bolts.
[0083] The embodiments of the present invention are described above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the enlightenment of the present invention, ordinary technicians in this field can also make many forms without departing from the scope of protection of the purpose of the present invention and the claims, which all fall within the protection of the present invention.
Claims
1. A warehouse structure for reducing the range of explosion fragments, characterized in that: The warehouse is assembled as a whole, the masonry blocks are strong and the component connections are weak, and the warehouse structure specifically comprises: prefabricated columns (1), assembled walls (2), prefabricated roof panels (3) and inter-column cable-stayed systems (4); The assembled wall (2) comprises a plurality of prefabricated steel fiber concrete blocks spliced together at staggered joints, and the multi-faceted assembled wall (2) forms an explosive storage space; The prefabricated columns (1) are arranged at the connection between two adjacent assembled walls (2), and the prefabricated columns (1) are higher than the assembled walls (2); The prefabricated top plate (3) covers the top of each prefabricated column (1); The inter-column inclined-stayed system (4) comprises carbon fiber ropes (4-1) cross-arranged between every two adjacent prefabricated columns (1); The steel fiber concrete prefabricated block has two specifications, namely, prefabricated block 1 and prefabricated block 2. The volume of the prefabricated block 1 is l*b*h, and through holes with a diameter of d are respectively opened at l / 4 and 3l / 4 along the height direction. The volume of the prefabricated block 2 is l / 2*b*h, and a through hole with a diameter of d is opened at l / 4 along the height direction, wherein l is the length of the steel fiber concrete prefabricated block, b is the thickness of the steel fiber concrete prefabricated block, and h is the height of the steel fiber concrete prefabricated block; The prefabricated block 1 and the prefabricated block 2 are bonded by an organic adhesive, and the through holes in each of the prefabricated block 1 and the prefabricated block 2 are all connected in the height direction of the assembled wall (2). The organic adhesive is injected into the through holes, wherein the organic adhesive is polyurethane, polyurea, or epoxy resin. The organic adhesive has the characteristics of rapid coagulation and can be quickly put into use after the assembly is completed. When the temperature is greater than 150°C, the organic adhesive will be rapidly thermally decomposed, which is conducive to rapid failure under the high temperature of the internal explosion, weakening the integrity of the wall, reducing the distance of fragment scattering, and avoiding the generation of secondary fragments; The two ends of the carbon fiber rope (4-1) are tied with end hooks (4-2), a plurality of hanging rings (4-3) are embedded on the prefabricated column (1), and the carbon fiber rope (4-1) is connected to the hanging rings (4-3) on the prefabricated column (1) via the end hooks (4-2).
2. The warehouse structure for reducing the scattering range of explosion fragments according to claim 1 is characterized in that: The material of the steel fiber concrete prefabricated block also includes hydrophobic material.
3. The warehouse structure for reducing the scattering range of explosion fragments according to claim 1 or 2, characterized in that: The prefabricated column (1) is a heavy steel structure, and its buried depth is 1 / 3 to 1 / 2 of the height above the ground; The buried depths of the prefabricated columns (1) on the same side of the warehouse central axis are the same, and the buried depth difference of the prefabricated columns (1) on different sides is adjusted according to the drainage requirements of the prefabricated top plate (3); The length and width of the prefabricated column (1) are both b, and it is bonded to the assembled wall (2) by an organic adhesive.
4. The warehouse structure for reducing the scattering range of explosion fragments according to claim 3 is characterized in that: The prefabricated columns (1) are also evenly erected at the central axis of the warehouse to strengthen the support for the prefabricated top plate (3), and steel beams (7) are arranged between the prefabricated columns (1).
5. The warehouse structure for reducing the scattering range of explosion fragments according to claim 1 is characterized in that: The prefabricated top plate (3) is a light steel structure; The prefabricated top plate (3) is connected to the prefabricated columns (1) via pre-buried anchor bolts, and is bonded to the assembled wall (2) via an organic adhesive.
6. The warehouse structure for reducing the scattering range of explosion fragments according to claim 1 is characterized in that: The warehouse structure also includes a warehouse door (6) and a load-bearing beam (5) on the door; The height of the warehouse door (6) is an integer multiple of the height of the steel fiber concrete prefabricated block; The thickness of the load-bearing cross beam (5) on the door is consistent with the thickness of the steel fiber concrete prefabricated block, the height is an integer multiple of the height of the steel fiber concrete prefabricated block, and the load-bearing length is 2 to 3 times the load-bearing length of the warehouse door (6).
7. A method for constructing a warehouse structure for reducing the scattering range of explosion fragments as claimed in claim 1, characterized in that: include: Step 1: Arrange the column spacing at the construction site according to the design requirements, drill holes according to the preset burial depth, and install the prefabricated columns (1); Step 2: Between two adjacent prefabricated columns (1), two types of steel fiber concrete prefabricated blocks are staggered and spliced by an organic adhesive to form a staggered spliced assembled wall (2), wherein the two types of steel fiber concrete prefabricated blocks include prefabricated block 1 and prefabricated block 2, the prefabricated block 1 has a volume of l*b*h, and is provided with through holes with a diameter of d at positions 1 / 4 and 31 / 4 along the height direction, respectively; the prefabricated block 2 has a volume of l / 2*b*h, and is provided with a through hole with a diameter of d at position 1 / 4 along the height direction, wherein l is the length of the steel fiber concrete prefabricated block, b is the thickness of the steel fiber concrete prefabricated block, and h is the height of the steel fiber concrete prefabricated block; Step 3: The other assembled walls (2) are assembled according to the method in step 2, wherein when assembling the assembled wall (2) on the exit side, a space is reserved for the warehouse door (6) and the load-bearing beam (5) on the door. After the steel fiber concrete prefabricated blocks on this side are spliced, the load-bearing beam (5) on the door is assembled at the reserved door top elevation, and the warehouse door (6) is installed below the load-bearing beam (5) on the door. Step 4: After all the assembled walls (2) are assembled, an organic adhesive is injected into each through hole in the assembled wall (2); Step 5: Cross-connect the two carbon fiber ropes (4-1) to the hanging rings (4-3) on the prefabricated column (1) through the end hooks (4-2) tied at both ends; Step 6: Connect the prefabricated top plate (3) to each prefabricated column (1) via anchor bolts.
8. The method for constructing a warehouse structure for reducing the scattering range of explosion fragments according to claim 7, characterized in that: The specific construction method of step 2 includes: Between two adjacent prefabricated columns (1), two types of prefabricated steel fiber concrete blocks are alternately spliced in sequence along two opposite sides in opposite order using an organic binder, and the remaining space between the two adjacent prefabricated columns (1) is filled by splicing prefabricated steel fiber concrete blocks of length l and an organic binder to form an assembled wall (2).
Citation Information
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