A shallow silo ventilation structure and a ventilation slot construction method thereof

Abstract

The application discloses a kind of shallow round warehouse ventilation structure, including circular warehouse body, the bottom surface in the circular warehouse body is equipped with multiple parallelly arranged ventilation grooves, the ventilation groove is equipped with multiple ventilation grooves with cast-in-place concrete air duct being connected to one end of circular warehouse body edge wall body, the cast-in-place concrete air duct is equipped with ventilation opening being connected with outside, the top of the ventilation groove is equipped with first top cover, the top of the cast-in-place concrete air duct is equipped with second top cover, the first top cover and second top cover top are flush.The application further discloses a kind of shallow round warehouse ventilation structure ventilation groove construction method, comprising: S1, groove embedded part installation;S2, side form plate installation;S3, first top cover installation;S4, ventilation groove overall installation.The component size of the application is single, strong applicability, combination installation is convenient, process is less, installation and correction are convenient, reduce the characteristics of construction difficulty, can be widely applied in industrial building field.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of industrial buildings, in particular to a shallow silo ventilation structure and a ventilation channel construction method thereof. BACKGROUND

[0002] The traditional concrete ventilation channel construction process is complex, including graded gravel backfill in the silo, compaction, ventilation channel excavation, cushion and sidewall pouring, waterproof construction, protective layer pouring, steel bar installation, side formwork installation, and cover plate manufacturing. Each process control is difficult, the template material consumption is large, the turnover frequency is low, and the labor input is large. At present, the domestic construction ventilation channel is poured with reinforced formwork concrete. This construction requires high technical workers, and the construction process is difficult to control, the construction cost is high, and the construction period is long. Due to the particularity and complexity of the ventilation channel construction, many challenges are often faced. SUMMARY

[0003] The purpose of the present application is to overcome the deficiencies of the background art, provide a shallow silo ventilation structure and a ventilation channel construction method thereof, which has the advantages of single component size, strong applicability, convenient combination 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 longer waterproof construction of the ventilation channel.

[0004] The present application provides a shallow silo ventilation structure, which comprises a circular silo body, a plurality of parallel ventilation channels are arranged on the inner bottom surface of the circular silo body, a cast-in-place concrete air duct is arranged at one end of the ventilation channels towards the edge wall of the circular silo body, the cast-in-place concrete air duct is provided with a ventilation opening connected to the outside, a first top cover is arranged on the top of the ventilation channel, a second top cover is arranged on the top of the cast-in-place concrete air duct, and the top of the first top cover is flush with the top of the second top cover.

[0005] In the above technical solution, each ventilation channel comprises two clamping grooves fixed to the inner bottom surface of the circular silo body and arranged parallel on both sides, respectively, two side plates are arranged on both sides inside each clamping groove, respectively, the top of the two side plates inside the two clamping grooves is provided with a first cover plate, the top of the two side plates outside the two clamping grooves is provided with a second cover plate, the second cover plate is located above the first cover plate, the first cover plate and the second cover plate belonging to the same ventilation channel jointly form a first top cover, and the first cover plate and the side plates on both sides form a flow channel of one ventilation channel.

[0006] In the above technical scheme, each card slot is composed of two side angle steels, each side of each card slot is welded by a plurality of angle steels, each side plate is welded by a plurality of side formworks, the vertical surfaces of the angle steels on both sides of each card slot are oppositely arranged to form a slot wall, and the horizontal surfaces of the angle steels extend outward, the horizontal surfaces of the angle steels are fixedly connected to the inner bottom surface of the circular barn body through expansion bolts, and the angle steels and the corresponding side plates are fixed through waterproof grouting material.

[0007] In the above technical scheme, rubber pads are arranged between the angle steels on both sides of each card slot, and the side plates between the two angle steels are arranged on the top of the rubber pads.

[0008] In the above technical scheme, the first cover plate and the second cover plate are each composed of a plurality of cover plate blocks, each cover plate block has a "C" type structure as a whole, one end of each cover plate block is longer than the other end, the long end of each cover plate block is provided with an "L" type notch, the "L" type notch is located on the outside of the long end, the long end of each cover plate block is provided with a plurality of through holes uniformly distributed along the cross section, when assembling, the long end of one cover plate block is located below and the long end of the other cover plate block is located above, the long ends of the two cover plate blocks are inserted into the middle notch of the "C" type structure of the other cover plate block by abutting against each other, the vertical surface of the "L" type notch of each cover plate block abuts against the end surface of the short end of the other cover plate block, and the through holes of the two cover plate blocks are aligned and provided with limiting strips in the through holes.

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

[0010] In the above technical scheme, the plurality of ventilation slots are arranged in one-to-one symmetry along the two sides of the diameter of the circular barn body.

[0011] The application further provides a construction method of a ventilation trough of a shallow silo ventilation structure, which has the following steps: S1, mounting of a clamping groove embedded part: graded sand and gravel is backfilled and compacted in a silo body, earthwork excavation of the ventilation trough is performed, a clamping groove is measured and marked, after pouring a cushion layer, an angle steel is fixed on an outer surface of bottom concrete of the silo body through expansion bolts, and installation position and precision of the clamping groove embedded part are controlled; S2, installation of a side formwork: after the concrete reaches a strength, a layer of rubber pad is placed at the bottom of the clamping groove as a sealing pad, the side formwork is moved to an area where the clamping groove embedded part is located, and is slowly placed in the clamping groove, welding installation is performed with attention to action amplitude, after installation is completed, high-strength waterproof grouting material is poured between the side formwork and the angle steel; S3, installation of a first top cover: after the side formwork is installed, a cover plate is processed into a cover plate block with a "C" type structure, a butt joint of the cover plate blocks is engaged and connected after being limited, and a first cover plate and a second cover plate are formed, the first cover plate and the second cover plate are connected with the side formwork through full welding, after welding is completed, whether full welding is performed at a welding position and whether a gap exists is checked, and welding repair is performed in a timely manner for a missed welding position; and S4, overall installation of the ventilation trough: the ventilation trough is installed in sections and is connected to form a complete ventilation trough system.

[0012] In the above technical solution, the method further comprises a step S0 of customizing the side formwork and the cover plate material.

[0013] The shallow silo ventilation structure and the construction method of the ventilation trough of the application have the following beneficial effects:

[0014] The application has various advantages, such as single component size, strong applicability, convenient combined installation, few processes, convenient installation and correction, reduced construction difficulty, reduced operation procedures and labor intensity of on-site personnel, reduced formwork joints, improved production efficiency, effective control of construction quality, and no need to perform waterproof construction of the ventilation trough. These advantages make the application have important application value in the field of construction. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is an overall plan view of the shallow silo ventilation structure of the application.

[0016] Figure 2 It is an overall perspective view of the shallow silo ventilation structure of the application.

[0017] Figure 3 It is a sectional view of the A-A section. Figure 1

[0018] It is a sectional view of the B-B section. Figure 4

[0019] It is a side formwork structure schematic view of the ventilation trough of the shallow silo ventilation structure of the application. Figure 5 Figure 1

[0020] ​​Figure 6 Structure schematic diagram of the invention shallow silo ventilation structure after the cover plate blocks are assembled into the first cover plate and the second cover plate;

[0021] Figure 7 Flowchart of the construction method of the ventilation trench of the invention shallow silo ventilation structure. DETAILED DESCRIPTION

[0022] The invention will be further described in detail below with reference to the accompanying drawings and examples, but the examples should not be understood as limiting the invention.

[0023] To solve the problems in the construction of the ventilation trench 2, multiple aspects need to be considered, including optimizing the construction process, improving the measurement and positioning accuracy, adopting steel structure installation technology, implementing strict quality control measures, and adopting a more flexible formwork design scheme, etc. Through the implementation of these measures, the quality and efficiency of the ventilation trench 2 construction can be effectively improved.

[0024] To solve the quality and efficiency problems in the construction of the ventilation trench 2, the construction process needs to be changed directly:

[0025] In view of the problem of multiple traditional construction process cycles, the construction method is considered to be changed to minimize unnecessary repeated steps and improve construction efficiency.

[0026] For the construction joint of the ventilation trench 2 top cover, it can be tried to use a mortise and tenon structure for assembly to reduce the joint gap.

[0027] For the ventilation trench side wall thickness, through stress analysis, a steel plate with appropriate thickness is used for assembly, and strict construction quality control measures are taken, such as implementing quality inspection, strengthening supervision, etc., to ensure that the construction quality of each process meets the requirements.

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

[0029] Referring to Figures 1-2 The invention shallow silo ventilation structure includes a circular silo body 1, a plurality of parallel ventilation trenches 2 are arranged on the inner bottom surface of the circular silo body 1, and the plurality of ventilation trenches 2 are arranged symmetrically along the diameter of the circular silo body 1 on both sides; one end of the ventilation trench 2 towards the edge wall of the circular silo body 1 is provided with a cast-in-place concrete air duct 3 connecting the plurality of ventilation trenches 2, the cast-in-place concrete air duct 3 is arranged in an arc along the wall of the circular silo body 1; the cast-in-place concrete air duct 3 is provided with a ventilation opening connected to the outside, the top of the ventilation trench 2 is provided with a first top cover, the top of the cast-in-place concrete air duct 3 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.

[0030] Referring to Figures 3-4Each ventilation slot 2 comprises two clamping grooves 21 fixed to the inner bottom surface of the circular silo body 1 and arranged in parallel on both sides respectively, two side plates 22 arranged in parallel on both sides inside each clamping groove 21 respectively, a first cover plate 23 arranged on the top of the two side plates 22 inside between the two clamping grooves 21 of each ventilation slot 2, a second cover plate 24 arranged on the top of the two side plates 22 outside between the two clamping grooves 21, the second cover plate 24 being arranged 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 jointly forming a first top cover, and the first cover plate 23 and the side plates 22 on both sides forming a flow channel of one ventilation slot 2.

[0031] Each clamping groove 21 is composed of angle steels 211 on both sides, each side of each clamping groove 21 is welded by a plurality of angle steels 211, each side plate 22 is welded by a plurality of side form plates 221, the vertical faces of the angle steels 211 on both sides of each clamping groove 21 are arranged in opposition to form groove walls, and the horizontal faces of the angle steels 211 extend outward, the horizontal faces of the angle steels 211 are fixed to the inner bottom surface of the circular silo body 1 by expansion bolts 25, and the angle steels 211 and the corresponding side plates 22 are fixed by waterproof grouting material 26.

[0032] Rubber pads 27 are arranged between the angle steels 211 on both sides of each clamping groove 21, and the side plate 22 between the two angle steels 211 is arranged on the top of the rubber pad 27.

[0033] Referring to Figures 5-6 The first cover plate 23 and the second cover plate 24 are each composed of a plurality of cover plate blocks 4, each cover plate block 4 has a whole "C" type structure, one end of each cover plate block 4 is longer than the other end, the long end of each cover plate block 4 is provided with an "L" type notch, the "L" type notch is located on the outside of the long end, the long end of each cover plate block 4 is provided with a plurality of through holes uniformly distributed along the cross section, when assembled, the long end of one cover plate block 4 is located below and the long end of the other cover plate block 4 is located above, the long ends of the two cover plate blocks 4 are inserted into the middle recess of the "C" type structure of the other cover plate block 4 and are tightly attached to each other, the vertical face of the "L" type notch of each cover plate block 4 abuts against the end face of the short end of the other cover plate block 4, and the through holes of the two cover plate blocks 4 are aligned and are provided with limiting strips (not shown in the figure) in the through holes.

[0034] Referring to Figure 7 The construction method of the ventilation slot of the shallow circular silo ventilation structure has the following steps:

[0035] First step: plate customization

[0036] In the factory, side form plates 221 (size 650mm*2000mm*20, like Figure 4) and cover material (750*2000mm*20), special as shown Figure 3 The angle steel 211 of the card slot 21.

[0037] Second step: card slot 21 embedded part installation

[0038] The circular silo body 1 is filled with graded sand and stone and compacted, the ventilation channel 2 is excavated, the card slot 12 of the ventilation channel 2 is measured and marked, the angle steel 211 is fixed on the outer surface of the bottom concrete of the circular silo body 1 through the expansion bolt 25 after pouring the cushion layer, attention is paid to the position of the angle steel 211, and the installation precision of the card slot 21 embedded part is controlled.

[0039] Third step: side formwork 221 installation

[0040] After the concrete reaches the strength, a layer of rubber pad 27 is placed at the bottom of the card slot 21 as a sealing pad, the side formwork 221 is moved to the area where the card slot 21 embedded part is located and is fixed in the card slot 21, so that the inside of the ventilation channel 2 achieves good sealing effect. When installing, the action should not be too large, and when placed in the card slot 21, it should be slow. After installation is completed, high-strength waterproof grouting material 26 (C60) with a depth of 250mm is poured between the side formwork 221 and the angle steel 211.

[0041] Fourth step: first top cover installation

[0042] After the side formwork 221 is installed, the cover material (750mm*2000mm*20) is connected with the cover material through special processing, the interface is made into a mortise and tenon structure and is engaged and connected, forming the first cover plate 23 and the second cover plate 24. The first cover plate 23 and the second cover plate 24 are connected with the side formwork 221 through full welding respectively. After welding is completed, whether the welding position is full welding and whether there is a gap are checked. In view of the missed welding position, timely welding repair is performed, so that the integrity is higher and the airtightness is stronger.

[0043] Fifth step: ventilation channel 2 overall installation

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

[0045] Technical principles and key technical features of the application:

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

[0047] Technical means:

[0048] The steel structure assembly construction method is introduced in the application, which replaces the traditional concrete construction method and realizes the innovation of the construction method. The method adopts prefabricated steel structure formwork, which is flexibly combined and disassembled to adapt to the ventilation channel demand of different sizes.

[0049] Problem solving:

[0050] 1. Avoiding concrete quality issues: effectively avoiding common quality issues in traditional concrete construction, such as cracking, uneven strength, etc.

[0051] 2. Enhancing applicability and flexibility: templates and construction methods can be flexibly adjusted according to actual engineering needs, improving the adaptability of construction plans.

[0052] 3. Reducing material waste: through precise design and assembly, material loss is reduced, achieving effective utilization of resources.

[0053] 4. Reducing construction difficulty and labor intensity: simplifying the installation and correction process, reducing the workload and labor intensity of on-site operators.

[0054] 5. Optimizing construction process: optimizing step arrangement to reduce unnecessary repetitive work, significantly improving construction efficiency.

[0055] 6. Improving construction quality: effectively controlling construction quality by reducing template joints, solving common quality problems in concrete construction.

[0056] II. Application of rubber pad 27

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

[0058] Problem solving:

[0059] 1. Improve sealing: the good elasticity and sealing performance of rubber pad 27 significantly improve the sealing effect of ventilation slot 2, so that waterproofing membrane construction is no longer needed.

[0060] 2. Save cost: directly cancel the waterproofing membrane and the materials and manpower required for its construction, reducing the overall construction cost.

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

[0062] Technical means: using mortise and tenon structure design to realize the tight connection between cover plate blocks 4.

[0063] Problem solving:

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

[0065] 2. Improve aesthetics: the compact mortise and tenon joint method makes the cover plate blocks 4 more flat and beautiful, improving the quality of building appearance.

[0066] 3. Solving structure problem: effectively overcome the defects of easy to break and heavy weight of traditional concrete cover plate, improve the stability and durability of structure.

[0067] Obviously, those skilled in the art can make various modifications and variations to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application belong to the scope of the claims of the present application and their equivalent technologies, the present application also intends to include these modifications and variations.

[0068] The contents not described in detail in the specification belong to the prior art known to those skilled in the art.

Claims

1. A silo ventilation construction comprising a silo body (1), characterized in that: The inner bottom surface of the circular silo body (1) is provided with a plurality of parallel ventilation slots (2), one end of the ventilation slots (2) towards the edge wall of the circular silo body (1) is provided with a cast-in-situ concrete air duct (3) connected with the plurality of ventilation slots (2), the cast-in-situ concrete air duct (3) is provided with a ventilation opening connected with the outside, the top of the ventilation slot (2) is provided with a first top cover, the top of the cast-in-situ concrete air duct (3) is provided with a second top cover, the first top cover is flush with the top of the second top cover; each ventilation slot (2) comprises two clamping grooves (21) fixed to the inner bottom surface of the circular silo body (1) and arranged parallel on both sides respectively, the inner sides of the two clamping grooves (21) are respectively provided with two side plates (22) parallel upwards, the top of the two side plates (22) between the two clamping grooves (21) of each ventilation slot (2) on the inner side is provided with a first cover plate (23), the top of the two side plates (22) between the two clamping grooves (21) on the outer side is provided with a second cover plate (24), the second cover plate (24) is above the first cover plate (23), the first cover plate (23) and the second cover plate (24) of the same ventilation slot (2) jointly form a first top cover, the first cover plate (23) and the side plates (22) on both sides form a flow channel of one ventilation slot (2); each clamping groove (21) is composed of angle steels (211) on both sides, each side of each clamping groove (21) is welded by a plurality of angle steels (211), each side plate (22) is welded by a plurality of side mold plates (221), the angle steels (211) on both sides of each clamping groove (21) are oppositely arranged to form groove walls in vertical surfaces and are outwardly extended in horizontal surfaces, the horizontal surfaces of the angle steels (211) are fixedly connected with the inner bottom surface of the circular silo body (1) through expansion bolts (25), the angle steels (211) and the corresponding side plates (22) are fixed through waterproof grouting material (26).

2. A silo venting configuration according to claim 1, characterised in that: Rubber pads (27) are arranged between the angle steels (211) on both sides of each clamping groove (21), and the side plates (22) between the two angle steels (211) are arranged on the top of the rubber pads (27).

3. A silo venting configuration according to claim 2, characterised in that: The first cover plate (23) and the second cover plate (24) are each composed of a plurality of cover plate blocks (4), each cover plate block (4) has a "C" type structure as a whole, one end of each cover plate block (4) is longer than the other end, the longer end of each cover plate block (4) is provided with an "L" type notch, the "L" type notch is located on the outside of the longer end, the longer end of each cover plate block (4) is provided with a plurality of through holes uniformly distributed along the cross section, when assembling, one end of one cover plate block (4) is located below and the other end of another cover plate block (4) is located above, the longer ends of the two cover plate blocks (4) are inserted into the middle notch of the "C" type structure of the other cover plate block (4) by tightly abutting each other, the vertical surface of the "L" type notch of each cover plate block (4) abuts against the end surface of the shorter end of the other cover plate block (4), the through holes of the two cover plate blocks (4) are aligned, and limiting strips are arranged in the through holes.

4. A silo venting arrangement according to claim 3, characterised in that: The cast-in-place concrete air duct (3) is in an arc shape arranged along the wall of the circular barn body (1).

5. A silo venting arrangement according to claim 4 wherein: The plurality of air ducts (2) are arranged in one-to-one symmetry along the two sides of the diameter of the circular barn body (1).

6. A construction method of a silo ventilation structure ventilation slot having the silo ventilation structure according to claim 5, characterized by: The method comprises the following steps: S1, mounting of the clamping groove (21) embedded part: the circular barn body (1) is backfilled and compacted with graded sand and gravel, the air duct (2) is excavated, the clamping groove (21) is measured and marked, the angle steel (211) is fixed on the outer surface of the concrete bottom surface of the circular barn body (1) through the expansion bolt (25) after pouring the cushion layer, and the installation position and precision of the clamping groove (21) embedded part are controlled; S2, mounting of the side formwork (221): after the concrete reaches the strength, a layer of rubber pad (27) is placed at the bottom of the clamping groove (21) as a sealing pad, the side formwork (221) is moved to the area where the clamping groove (21) embedded part is located, and is slowly placed in the clamping groove (21); attention is paid to the action amplitude during welding installation, high-strength waterproof grouting material (26) is poured between the side formwork (221) and the angle steel (211) after the installation is completed; S3, mounting of the first top cover: after the side formwork (221) is mounted, the cover plate is processed into a "C" type structure cover plate block (4), the abutting joints between the cover plate blocks (4) are engaged and abutted and limited to form the first cover plate (23) and the second cover plate (24) respectively, the first cover plate (23) and the second cover plate (24) are connected with the side formwork (221) through full welding respectively, after the welding is completed, whether the welding position is full welding and whether there is a gap are checked, and the missed welding position is timely welded and repaired; S4, overall installation of the air duct (2): the air duct (2) is installed in sections and then abutted to form a complete air duct (2) system.

7. The construction method of a ventilation channel of a silo ventilation structure according to claim 6, characterized in that: The method further comprises the step S0, plate customization: customization of the side formwork (221) and the cover plate material.

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