Ventilation structure of squat silo and ventilation slot construction method thereof

Abstract

The squat granary ventilation structure comprises a circular granary body, a plurality of parallel ventilation grooves are formed in the inner bottom face of the circular granary body, and cast-in-place concrete air inducing grooves communicating the ventilation grooves are formed in the ends, facing the edge wall of the circular granary body, of the ventilation grooves. The cast-in-place concrete air inducing groove is provided with a ventilation opening communicated with the outside, the top of the ventilation groove is provided with a first top cover, the top of the cast-in-place concrete air inducing groove is provided with a second top cover, and the top of the first top cover is flush with the top of the second top cover. The invention further discloses a construction method of the ventilation groove of the ventilation structure of the squat silo. The construction method comprises the steps that S1, the clamping groove embedded parts are installed; s2, side formworks are installed; s3, mounting a first top cover; and S4, the ventilation slot is integrally installed. The component has the characteristics of single size, high applicability, convenience in combination and installation, few procedures, convenience in installation and correction and reduction of construction difficulty, and can be widely applied to the field of industrial buildings.

Description

Technical Field

[0001] The invention relates to the field of industrial buildings, in particular to a shallow silo ventilation structure and a ventilation slot construction method thereof. Background Art

[0002] Traditional concrete ventilation slot construction has many processes, including backfilling with graded sand and gravel in the warehouse, compaction, excavation of ventilation slots, pouring of cushion and side walls, waterproofing construction, pouring of protective layer, installation of steel bars, installation of side formwork, and production of cover plates. Each process is difficult to control, requires a large amount of formwork materials, has a small turnover rate, and requires a large amount of labor. At present, domestic construction ventilation slots are all cast in reinforced formwork concrete. This type of construction has high requirements for skilled workers, the process is difficult to control the construction quality, the construction cost is high, and the construction period is long. The construction of ventilation slots often faces many challenges due to its particularity and complexity. Summary of the invention

[0003] The purpose of the present invention is to overcome the shortcomings of the above-mentioned background technology and to provide a shallow silo ventilation structure and a ventilation groove construction method thereof, so that it has a single component size, strong applicability, convenient assembly and installation, fewer processes, convenient installation and correction, reduced construction difficulty, reduced operating procedures and labor intensity of on-site personnel, reduced template joints, improved production efficiency, effectively controlled construction quality, and no longer required ventilation groove waterproofing construction.

[0004] A shallow circular silo ventilation structure provided by the present invention comprises a circular silo body, wherein the inner bottom surface of the circular silo body is provided with a plurality of parallel ventilation slots, one end of the ventilation slot facing the edge wall of the circular silo body is provided with a cast-in-place concrete air duct connecting the plurality of ventilation slots, the cast-in-place concrete air duct is provided with a vent connected to the outside, a first top cover is provided on the top of the ventilation slot, a second top cover is provided on the top of the cast-in-place concrete air duct, and the first top cover is flush with the top of the second top cover.

[0005] In the above technical solution, each ventilation slot comprises two slots fixed on the inner bottom surface of the circular barn body and arranged in parallel on both sides, and two parallel side panels facing upward are provided on both sides of each slot, a first cover plate is provided on the top of the two inner side panels between the two slots of each ventilation slot, and a second cover plate is provided on the top of the two outer side panels between the two slots, and the second cover plate is located above the first cover plate, and the first cover plate and the second cover plate belonging to the same ventilation slot together constitute a first top cover, and the first cover plate and the side panels on both sides constitute a flow channel of a ventilation slot.

[0006] In the above technical solution, each of the slots is composed of angle steels on both sides, each side of each slot is welded by multiple angle steels, and each side panel is welded by multiple side templates. The vertical surfaces of the angle steels on both sides of each slot are arranged opposite to each other to form slot walls, and the horizontal surfaces are extended outward. The horizontal surfaces of the angle steels are fixedly connected to the inner bottom surface of the circular barn body by expansion bolts, and the angle steels are fixed to the corresponding side panels by waterproof grouting material.

[0007] In the above technical solution, a rubber pad is provided between the angle steels on both sides of each slot, and the side template between the two angle steels is arranged on the top of the rubber pad.

[0008] In the above technical solution, the first cover plate and the second cover plate are both composed of a plurality of cover plates, each of which is in a "C"-shaped structure as a whole, one end of each cover plate is longer than the other end, and an "L"-shaped notch is provided at the long end of each cover plate, and the "L"-shaped notch is located on the outside of the long end, and a plurality of through holes are evenly distributed along the cross section at the long end of each cover plate. When assembled, the long end of one cover plate is located at the bottom and the long end of the other cover plate is located at the top, and the long ends of the two cover plates are tightly inserted into the middle notch of the "C"-shaped structure of the other cover plate, and the vertical surface of the "L"-shaped notch of each cover plate is abutted against the short end surface of the other cover plate, and the through holes of the two cover plates are aligned, and limiting strips are provided in the through holes.

[0009] In the above technical solution, the cast-in-place concrete air duct is in an arc shape arranged along the wall of the circular barn body.

[0010] In the above technical solution, the plurality of ventilation slots are symmetrically arranged along both sides of the diameter of the circular barn body.

[0011] The present invention further provides a construction method for ventilation slots of a shallow circular silo ventilation structure, which comprises the following steps: S1, installation of slot embedded parts: backfilling and compacting the graded sand and gravel in the circular silo body, excavating the ventilation slot, measuring and marking the slots, and after pouring the cushion layer, fixing the angle steel to the outer surface of the concrete on the bottom surface of the circular silo body through expansion bolts, and controlling the installation position and accuracy of the slot embedded parts; S2, installation of the side formwork: after the concrete reaches the required strength, placing a layer of rubber pads at the bottom of the slot as a sealing pad, moving the side formwork to the area where the slot embedded parts are located, and slowly placing it in the slot. Pay attention to the welding installation. Movement range, after installation, high-strength waterproof grouting material is poured between the side formwork and the angle steel; S3, first top cover installation: after the side formwork is installed, the cover plate material is processed into a "C"-shaped cover plate, and the joints between the cover plates are engaged and limited to form the first cover plate and the second cover plate respectively. The first cover plate and the second cover plate are connected to the side formwork by full welding. After welding, check whether the welding position is fully welded and there are no gaps, and weld and repair the leaking position in time; S4, overall installation of ventilation slots: install the ventilation slots in sections and then connect them to form a complete ventilation slot system.

[0012] The above technical solution also includes step S0, sheet material customization: customizing side formwork and cover plate materials.

[0013] The shallow silo ventilation structure and ventilation slot construction method of the present invention have the following beneficial effects:

[0014] The present invention has many advantages, such as single component size, strong applicability, convenient assembly and installation, fewer processes, convenient installation and correction, reduced construction difficulty, reduced operation procedures and labor intensity of on-site personnel, reduced template joints, improved production efficiency, effective control of construction quality, and no need for ventilation slot waterproofing. These advantages make the present invention have important application value in the field of construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is an overall plan view of the ventilation structure of the shallow silo of the present invention;

[0016] Figure 2 It is an overall perspective view of the ventilation structure of the shallow silo of the present invention;

[0017] Figure 3 for Figure 1 Sectional view of the AA section;

[0018] Figure 4 It is a schematic diagram of the side template structure of the ventilation slot in the ventilation structure of the shallow silo of the present invention;

[0019] Figure 5 for Figure 1 Sectional view of the middle BB section;

[0020] Figure 6 It is a schematic diagram of the structure of the shallow silo ventilation structure of the present invention after the cover plates are assembled into the first cover plate and the second cover plate;

[0021] Figure 7 This is a schematic diagram of the construction method of the ventilation slot of the shallow silo ventilation structure of the present invention. DETAILED DESCRIPTION

[0022] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments, but the embodiments should not be construed as limiting the present invention.

[0023] Solving the problems in the construction of ventilation slots 2 requires multiple aspects, including optimizing the construction process, improving the measurement and positioning accuracy, adopting steel structure installation technology, implementing strict quality control measures, and adopting more flexible template design solutions. Through the implementation of these measures, the quality and efficiency of the construction of ventilation slots 2 can be effectively improved.

[0024] Solve the quality and efficiency problems in the construction of ventilation slots 2 and directly change the construction process:

[0025] In view of the problem of many cycles in traditional construction processes, we should consider changing the construction methods to minimize unnecessary repeated steps and improve construction efficiency.

[0026] For the construction joint of the top cover of the ventilation slot 2, you can try to use mortise and tenon structure for assembly to reduce the joint gap.

[0027] As for the thickness of the ventilation slot side walls, steel plates of appropriate thickness are used for assembly through force analysis, and strict construction quality control measures are adopted, such as quality inspections and enhanced supervision, to ensure that the construction quality of each process meets the requirements.

[0028] According to the above ideas, the technical solution of the present invention is as follows:

[0029] See also Figure 1 to Figure 2 The ventilation structure of the shallow silo of the present invention comprises a circular silo body 1, wherein the inner bottom surface of the circular silo body 1 is provided with a plurality of parallel ventilation slots 2, wherein the plurality of ventilation slots 2 are symmetrically arranged along both sides of the diameter of the circular silo body 1; the ventilation slots 2 are provided with cast-in-place concrete air ducts 3 connecting the plurality of ventilation slots 2 at one end of the edge wall of the circular silo body 1, wherein the cast-in-place concrete air ducts 3 are in an arc shape arranged along the wall of the circular silo body 1; the cast-in-place concrete air ducts 3 are provided with ventilation ports connected to the outside, a first top cover is provided on the top of the ventilation slots 2, a second top cover is provided on the top of the cast-in-place concrete air ducts 3, and the first top cover is flush with the top of the second top cover.

[0030] See also Figure 3 to Figure 4Each ventilation slot 2 includes two slots 21 fixed to the inner bottom surface of the circular barn body 1 and arranged in parallel on both sides. Two side panels 22 facing upward are arranged on both sides of each slot 21. A first cover plate 23 is arranged on the top of the two side panels 22 located on the inner side between the two slots 21 of each ventilation slot 2. A second cover plate 24 is arranged on the top of the two side panels 22 located on the outer side between the two slots 21. The second cover plate 24 is located above the first cover plate 23. The first cover plate 23 and the second cover plate 24 belonging to the same ventilation slot 2 together constitute a first top cover. The first cover plate 23 and the side panels 22 on both sides constitute a flow channel of a ventilation slot 2.

[0031] Each of the slots 21 is composed of angle steels 211 on both sides, each side of each of the slots 21 is welded by multiple angle steels 211, and each of the side panels 22 is welded by multiple side templates 221. The vertical surfaces of the angle steels 211 on both sides of each of the slots 21 are arranged opposite to each other to form slot walls, and the horizontal surfaces are extended outward. The horizontal surfaces of the angle steels 211 are fixedly connected to the inner bottom surface of the circular barn body 1 through expansion bolts 25, and the angle steels 211 and the corresponding side panels 22 are fixed by waterproof grouting materials 26.

[0032] A rubber pad 27 is disposed between the angle steels 211 on both sides of each slot 21 , and the side template 22 between the two angle steels 211 is disposed on the top of the rubber pad 27 .

[0033] See also Figure 5 to Figure 6 , the first cover plate 23 and the second cover plate 24 are both composed of a plurality of cover panels 4, each of which is in a "C"-shaped structure as a whole, one end of each cover panel 4 is longer than the other end, and an "L"-shaped notch is provided at the long end of each cover panel 4, and the "L"-shaped notch is located outside the long end, and a plurality of through holes are evenly distributed along the cross section at the long end of each cover panel 4. When assembled, the long end of one cover panel 4 is located at the bottom and the long end of the other cover panel 4 is located at the top, and the long ends of the two cover panels 4 are tightly inserted into the middle notch of the "C"-shaped structure of the other cover panel 4, and the vertical surface of the "L"-shaped notch of each cover panel 4 abuts against the end surface of the short end of the other cover panel 4, and the through holes of the two cover panels 4 are aligned, and limit strips (not shown in the figure) are provided in the through holes.

[0034] See also Figure 7 The construction method of the ventilation slot of the shallow silo ventilation structure of the present invention comprises the following steps:

[0035] Step 1: Board customization

[0036] The manufacturer customized a 20mm thick (after sufficient demonstration, the thickness of the steel template is light, has good rigidity and moderate elasticity) side template 221 (size 650mm*2000mm*20, such as Figure 4 ) and cover material (750*2000mm*20), specially made Figure 3 The angle steel 211 of the slot 21 is shown.

[0037] Step 2: Install the embedded parts of slot 21

[0038] The graded sand and gravel in the circular barn body 1 is backfilled and compacted, and the earthwork of the ventilation slot 2 is excavated. The slot 12 of the ventilation slot 2 is measured and marked. After pouring the cushion layer, the angle steel 211 is fixed to the outer surface of the concrete of the bottom surface of the circular barn body 1 through the expansion bolts 25. Pay attention to the installation position of the angle steel 211 and control the installation accuracy of the embedded parts of the slot 21.

[0039] Step 3: Side formwork 221 installation

[0040] After the concrete reaches the required strength, a layer of rubber pad 27 should be placed at the bottom of the slot 21 as a sealing pad, and the side template 221 should be moved to the area where the embedded parts of the slot 21 are located, and fixed into the slot 21 to ensure a good sealing effect inside the ventilation slot 2. During installation, it should be noted that the movement should not be too large, and it should be placed slowly in the slot 21. After the installation is completed, a high-strength waterproof grouting material 26 (C60) with a depth of 250mm is poured between the side template 221 and the angle steel 211.

[0041] Step 4: First cover installation

[0042] After the side formwork 221 is installed, the cover plate materials (750mm*2000mm*20) are specially processed and the docking interfaces are made into mortise and tenon structures to form the first cover plate 23 and the second cover plate 24. The first cover plate 23 and the second cover plate 24 are connected to the side formwork 221 by full welding. After welding, check whether the welding position is fully welded and whether there are any gaps. The leaking positions are repaired in time for higher integrity and stronger airtightness.

[0043] Step 5: Overall installation of ventilation slot 2

[0044] The ventilation slot 2 is installed in sections and then connected to form a complete ventilation slot 2 system.

[0045] The technical principle and key technical features of the present invention are as follows:

[0046] 1. Application of steel structure assembly construction method

[0047] Technical means:

[0048] The present invention introduces a steel structure assembly construction method, replacing the traditional concrete construction method, and realizing the innovation of the construction method. The method adopts a prefabricated steel structure template, which can be flexibly assembled and disassembled to meet the requirements of ventilation slots of different sizes.

[0049] Solving the problem:

[0050] 1. Avoid concrete quality problems: effectively avoid common quality problems in traditional concrete construction, such as cracking and uneven strength.

[0051] 2. Enhanced applicability and flexibility: The template and construction method can be flexibly adjusted according to the actual needs of the project, which improves the adaptability of the construction plan.

[0052] 3. Reduce material waste: Through precise design and assembly, material loss is reduced and effective use of resources is achieved.

[0053] 4. Reduce construction difficulty and labor intensity: simplify the installation and calibration process, and reduce the workload and labor intensity of on-site operators.

[0054] 5. Optimize the construction process: To address the problem of multiple process cycles, we optimized the step arrangement, reduced unnecessary repetitive work, and significantly improved construction efficiency.

[0055] 6. Improve construction quality: By reducing formwork joints, the construction quality is effectively controlled and the common quality problems in concrete construction are solved.

[0056] 2. Application of rubber pad 27

[0057] Technical means: a rubber pad 27 is added to the design of the ventilation slot 2 to enhance its sealing performance.

[0058] Solving the problem:

[0059] 1. Improve airtightness: The good elasticity and airtightness of the rubber pad 27 significantly improve the airtightness of the ventilation slot 2, thereby eliminating the need for waterproof membrane construction.

[0060] 2. Cost saving: directly eliminates the materials and manpower required for waterproof membrane and its construction, reducing the overall construction cost.

[0061] 3. Design of the mortise and tenon structure of the first top cover

[0062] Technical means: The mortise and tenon structure is used to design the cover plate docking method to achieve a tight connection between the 4 cover plates.

[0063] Solving the problem:

[0064] 1. Improved sealing performance: The mortise and tenon structure ensures the sealing between the cover plates 4, solving the problem of loose joints and easy water seepage in traditional concrete cover plates.

[0065] 2. Improve aesthetics: The compact mortise and tenon joint method makes the cover plate 4 smoother and more beautiful as a whole, improving the appearance quality of the building.

[0066] 3. Solve structural problems: effectively overcome the defects of traditional concrete cover plates such as easy damage and heavy weight, and improve the stability and durability of the structure.

[0067] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

[0068] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

Claims

1. A shallow silo ventilation structure, comprising a circular silo body (1), characterized in that: The inner bottom surface of the circular barn body (1) is provided with a plurality of parallel ventilation slots (2); one end of the ventilation slot (2) facing the edge wall of the circular barn body (1) is provided with a cast-in-place concrete air duct (3) connecting the plurality of ventilation slots (2); the cast-in-place concrete air duct (3) is provided with a vent connected to the outside; a first top cover is provided on the top of the ventilation slot (2); a second top cover is provided on the top of the cast-in-place concrete air duct (3); and the first top cover is flush with the top of the second top cover.

2. The shallow silo ventilation structure according to claim 1 is characterized in that: Each ventilation slot (2) comprises two slots (21) fixed to the inner bottom surface of the circular barn body (1) and arranged in parallel on both sides, and two side plates (22) facing upward are arranged on both sides of each slot (21) respectively, and a first cover plate (23) is arranged on the top of the two side plates (22) located on the inner side between the two slots (21) of each ventilation slot (2), and a second cover plate (24) is arranged on the top of the two side plates (22) located on the outer side between the two slots (21), and the second cover plate (24) is located above the first cover plate (23), and the first cover plate (23) and the second cover plate (24) belonging to the same ventilation slot (2) together constitute a first top cover, and the first cover plate (23) and the side plates (22) on both sides constitute a flow channel of a ventilation slot (2).

3. The shallow silo ventilation structure according to claim 2 is characterized in that: Each of the slots (21) is composed of angle steels (211) on both sides. Each side of each of the slots (21) is welded by a plurality of angle steels (211). Each of the side panels (22) is welded by a plurality of side templates (221). The vertical surfaces of the angle steels (211) on both sides of each of the slots (21) are arranged opposite to each other to form slot walls, and the horizontal surfaces are extended outward. The horizontal surfaces of the angle steels (211) are fixedly connected to the inner bottom surface of the circular barn body (1) by expansion bolts (25). The angle steels (211) are fixed to the corresponding side panels (22) by waterproof grouting material (26).

4. The shallow silo ventilation structure according to claim 3 is characterized by: A rubber pad (27) is provided between the angle steels (211) on both sides of each slot (21), and the side template (22) between the two angle steels (211) is arranged on the top of the rubber pad (27).

5. The shallow silo ventilation structure according to claim 4 is characterized in that: The first cover plate (23) and the second cover plate (24) are both composed of a plurality of cover plates (4), each of which is in a "C"-shaped structure as a whole. One end of each cover plate (4) is longer than the other end. The long end of each cover plate (4) is provided with an "L"-shaped notch, and the "L"-shaped notch is located outside the long end. The long end of each cover plate (4) is provided with a plurality of through holes evenly distributed along the cross section. When assembled, the long end of one cover plate (4) is located at the bottom and the long end of the other cover plate (4) is located at the top. The long ends of the two cover plates (4) are closely inserted into the middle notch of the "C"-shaped structure of the other cover plate (4). The vertical surface of the "L"-shaped notch of each cover plate (4) is in contact with the end surface of the short end of the other cover plate (4). The through holes of the two cover plates (4) are aligned, and limit strips are provided in the through holes.

6. The shallow silo ventilation structure according to claim 5 is characterized by: The cast-in-place concrete air duct (3) is in an arc shape and is arranged along the wall of the circular barn body (1).

7. The shallow silo ventilation structure according to claim 6, characterized in that: The plurality of ventilation slots (2) are symmetrically arranged along both sides of the diameter of the circular barn body (1).

8. A method for constructing ventilation slots in a shallow silo ventilation structure, characterized in that: The following steps are involved: S1, installation of embedded parts of the slot (21): backfill and compact the graded gravel in the circular silo body (1), excavate the earthwork of the ventilation slot (2), measure and mark the slot (21), and after pouring the cushion layer, fix the angle steel (211) to the outer surface of the concrete of the inner bottom surface of the circular silo body (1) through expansion bolts (25), and control the installation position and accuracy of the embedded parts of the slot (21); S2, installation of the side formwork (221): after the concrete reaches the required strength, a layer of rubber pad (27) is placed at the bottom of the slot (21) as a sealing pad, the side formwork (221) is moved to the area where the embedded parts of the slot (21) are located, and is slowly placed in the slot (21). During welding and installation, attention is paid to the movement amplitude. After the installation is completed, high-strength waterproof grouting material (26) is poured between the side formwork (221) and the angle steel (211); S3, installation of the first top cover: after the side template (221) is installed, the cover plate material is processed into a cover plate (4) of a "C"-shaped structure, and the butt joints between the cover plates (4) are engaged and limited to form a first cover plate (23) and a second cover plate (24), respectively. The first cover plate (23) and the second cover plate (24) are connected to the side template (221) by full welding. After the welding is completed, check whether the welding position is fully welded and whether there is any gap, and promptly weld and repair the leaking position; S4. Overall installation of the ventilation slot (2): The ventilation slot (2) is installed in sections and then connected to form a complete ventilation slot (2) system.

9. The construction method of the ventilation slot of the shallow silo ventilation structure according to claim 8 is characterized by: The method also includes step S0, board customization: customizing the side template (221) and cover board materials.

Images