A wall structure of a grain flat warehouse

Abstract

This utility model provides a grain storage warehouse wall structure, comprising an inner load-bearing layer, a middle insulation layer, and an outer protective layer arranged sequentially from the inside to the outside of the warehouse. The middle insulation layer is an insulation board layer, which is bonded and fixed to the outer side of the inner load-bearing layer facing the outer protective layer. The inner side of the inner load-bearing layer facing away from the middle insulation layer is coated with an aerogel coating. The insulation board layer of the middle insulation layer is made of molded polystyrene foam. The inner load-bearing layer is a reinforced concrete wall layer, and the outer protective layer is a brick wall layer. A foundation step extending outward is provided at the bottom of the inner load-bearing layer, and the middle insulation layer and the outer protective layer are set on the foundation step. The grain storage warehouse wall structure described in this utility model can effectively improve the stability of the grain storage warehouse wall structure while reducing the weight of the wall, thereby effectively reducing the foundation load and the risk of uneven settlement of soft soil foundations and wall cracking.

Description

Technical Field

[0001] This utility model belongs to the technical field of grain storage building wall technology, and specifically relates to a grain storage flat wall structure. Background Technology

[0002] The safety and stability of grain storage facilities are directly related to the quality of grain storage. Flat grain warehouses are the most common and widely used type of bulk grain storage warehouse. They are named "flat warehouses" because they are rectangular in shape and the roof is usually A-frame or arched, similar to ordinary bungalows. They are usually made of brick-concrete or reinforced concrete, and the construction technology is mature, making construction and maintenance relatively easy. They occupy a large area and have spacious interiors. The storage capacity of a single warehouse can be significantly increased by increasing the height of the grain stack (usually storing thousands to tens of thousands of tons of grain). They can be used to store various grains such as wheat, corn, and rice. Compared with other types of warehouses such as vertical flat warehouses and shallow round warehouses, the construction cost per unit capacity is usually lower. my country's "Technical Guidelines for the Construction of High-Standard Grain Reserve Warehouses" clearly requires that grain warehouses have good thermal insulation, airtightness, and structural stability.

[0003] The existing wall structure of traditional grain warehouses typically uses a frame structure built with 370mm or 490mm thick load-bearing bricks, and the walls are mostly brick or concrete. These structures are required to withstand the lateral pressure of the grain while also providing insulation and moisture protection. Ventilation ditch entrances are provided at the base of the walls to meet the storage needs of the grain. However, certain problems exist in practical applications. Due to the widespread use of grain warehouses, they are built in different regions and locations. The structure of these warehouses lacks stability in some soft soil foundations, and most bear significant grain loads. This leads to uneven settlement of the floor under soft soil foundations or grain loads, resulting in a chain reaction that causes cracking of the ground moisture barrier, roof, and walls, leading to high maintenance costs in the later stages. Utility Model Content

[0004] In view of this, this utility model addresses the shortcomings of the existing technology by providing a grain warehouse wall structure that can significantly improve the stability of the grain warehouse wall structure while reducing the weight of the wall, thereby effectively reducing the foundation load and minimizing the risk of uneven settlement of soft soil foundations and wall cracking.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: a grain storage warehouse wall structure, comprising an inner load-bearing layer, a middle insulation layer, and an outer protective layer arranged sequentially from the inside to the outside of the warehouse. The middle insulation layer is an insulation board layer, which is bonded and fixed to the outer side of the inner load-bearing layer facing the outer protective layer. The inner side of the inner load-bearing layer facing away from the middle insulation layer is coated with an aerogel coating. The insulation board layer of the middle insulation layer is made of molded polystyrene foam. The inner load-bearing layer is a reinforced concrete wall layer, and the outer protective layer is a brick wall layer. The bottom of the inner load-bearing layer is provided with an outwardly extending foundation step, and the middle insulation layer and the outer protective layer are set on the foundation step. The thickness ratio of the outwardly extending foundation step at the bottom of the inner load-bearing layer, the aerogel coating, the upper inner load-bearing layer, the middle insulation layer, and the outer protective layer is 64:1:30:10:24. The inner load-bearing layer is a reinforced concrete wall layer, and the outer protective layer is a brick wall layer.

[0006] As a further improvement of this utility model, the outer protective layer is coated with a base treatment layer on the outer side facing away from the middle insulation layer, the base treatment layer is coated with a waterproof coating on the outer side facing away from the outer protective layer, and the waterproof coating is coated with a heat-insulating and reflective coating on the outer side facing away from the base treatment layer.

[0007] As a further improvement of this utility model, a galvanized steel wire mesh is provided between the outer protective layer and the middle insulation layer. The galvanized steel wire mesh is fixedly connected to the outer protective layer and the middle insulation layer respectively. A reinforcing layer, a waterproof mortar layer and an airtight coating are sequentially provided on the outside of the aerogel coating. The reinforcing layer is a fully covered galvanized steel wire mesh. The middle insulation layer can be replaced with extruded polystyrene foam board or rigid polyurethane foam spray coating.

[0008] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0009] Firstly, structural stability is significantly improved: the 300mm thick reinforced concrete inner layer has 3-5 times higher compressive and flexural strength than traditional brick walls, allowing grain storage stacks to reach 12 meters (compared to only 8 meters for traditional brick walls), increasing storage capacity by 50% for the same floor area; the wall weight is reduced by 40%-50%, reducing foundation load and minimizing the risk of uneven settlement in soft soil foundations and wall cracking, while also improving sound insulation and noise reduction: the elastic damping effect of the cavity interlayer and EPS insulation layer significantly reduces the transmission of equipment operating noise, reducing noise pollution from the perspective of building structure.

[0010] Secondly, the thermal insulation performance is optimized: the central insulation design makes the expansion coefficients of the concrete layers on both sides similar, reduces the temperature deformation difference, and eliminates the hidden danger of cracking of the "two layers" of external insulation; the synergistic effect of the inner and outer heat storage layers reduces the temperature fluctuation inside the warehouse, meeting the requirements of daily fluctuation in grain storage.

[0011] Third, enhanced moisture resistance: The three-level moisture-proof system, combined with hydrophobic aerogel and dense outer bricks, effectively blocks water vapor penetration in high-humidity environments, preventing the insulation layer from absorbing water (the thermal conductivity of traditional molded polystyrene foam increases by 50% after absorbing water), and extending the life of the building envelope by 20%-30%.

[0012] Fourth, it has excellent adaptability and economy: it supports the replacement of building materials and adapts to different market and cost requirements; the construction technology is mature, and combined with continuous slip form and other technologies, it reduces the construction cycle and lowers the later maintenance costs, making it especially suitable for the construction of grain depots in complex foundations and high-humidity and rainy areas. Attached Figure Description

[0013] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0014] Figure 1 This is a frontal view of the structure of this utility model.

[0015] In the diagram: 101, outer protective layer; 102, middle insulation layer; 103, inner load-bearing layer; 104, aerogel coating; 105, heat-insulating and reflective coating. Detailed Implementation

[0016] To better understand this utility model, the following embodiments further illustrate its content, but the scope of protection of this utility model is not limited to the embodiments described below. Numerous specific details are set forth in the following description to provide a more thorough understanding of this utility model. However, it will be apparent to those skilled in the art that this utility model can be practiced without one or more of these details.

[0017] like Figure 1 As shown, the structure includes an inner load-bearing layer 103, an intermediate insulation layer 102, and an outer protective layer 101 arranged sequentially from the inside to the outside of the warehouse. The intermediate insulation layer 102 is an insulation board layer, which is bonded and fixed to the outer side of the inner load-bearing layer facing the outer protective layer. The inner side of the inner load-bearing layer 103 facing away from the intermediate insulation layer is coated with an aerogel coating 104. The insulation board layer of the intermediate insulation layer 102 is made of molded polystyrene foam. The inner load-bearing layer 103 is a reinforced concrete wall layer, and the outer protective layer 101 is a brick wall layer. The thickness of the aerogel coating 104 is 8-12 mm, and the water repellency rate of the aerogel is 98%. The intermediate insulation layer 102 is bonded to the outside of the inner load-bearing layer 103 with an adhesive, and the outer protective layer 101 is built on the outside of the intermediate insulation layer 102.

[0018] like Figure 1As shown, the bottom of the inner load-bearing layer 103 is provided with an outwardly extending base step, and the intermediate insulation layer 102 and the outer protective layer 101 are set on the base step; the thickness ratio of the outwardly extending base step at the bottom of the inner load-bearing layer 103 to the aerogel coating 104, the upper inner load-bearing layer 103, the intermediate insulation layer 102 and the outer protective layer 101 is 64:1:30:10:24; the adhesive between the intermediate insulation layer 102 and the inner load-bearing layer 103 is a special adhesive for molded polystyrene foam board, and the bonding area is not less than 40% of the area of ​​the intermediate insulation layer 102; the base treatment layer includes a 12mm thick WPM15 mortar base, a 1.5mm thick polymer cement waterproof coating, and a heat-insulating reflective coating 105 is a synthetic resin latex sand-textured building coating mixed with heat-insulating reflective coating, and the dosage of heat-insulating reflective coating is 3-5 kg ​​per square meter.

[0019] like Figure 1 As shown, the outer protective layer 101 is provided with a base treatment layer, a waterproof coating and a heat insulation and reflective coating 105 in sequence on the outer side; the outer side of the outer protective layer 101 facing away from the middle insulation layer is coated with a base treatment layer, the outer side of the base treatment layer facing away from the outer protective layer 101 is coated with a waterproof coating, and the outer side of the waterproof coating facing away from the base treatment layer is coated with a heat insulation and reflective coating 105.

[0020] like Figure 1 As shown, a galvanized steel wire mesh is provided between the outer protective layer 101 and the intermediate insulation layer 102. The galvanized steel wire mesh is fixedly connected to both the outer protective layer 101 and the intermediate insulation layer 102. A reinforcing layer, a waterproof mortar layer, and an airtight coating are sequentially provided on the outside of the aerogel coating 104. The reinforcing layer is a fully laid galvanized steel wire mesh. The waterproof mortar layer is a 6mm thick coated polymer cement waterproof mortar. The airtight coating is a double-coated polyamide patterned resin airtight coating. A cavity layer is formed between the inner load-bearing layer 103 and the outer protective layer 101. The thickness of the cavity layer is the same as the thickness of the intermediate insulation layer 102. The outer protective layer 101 can be autoclaved aerated concrete blocks or hollow concrete blocks. The intermediate insulation layer 102 can be extruded polystyrene foam board or rigid polyurethane foam spray coating.

[0021] Inner load-bearing layer 103: It adopts a 300mm thick C30 reinforced concrete wall, which is poured by continuous slip form construction to ensure the integrity of the structure, bear the horizontal lateral pressure generated by the grain pile, and reduce the uneven settlement of the soft soil foundation by utilizing high longitudinal stiffness.

[0022] Intermediate insulation layer 102: 100mm thick molded polystyrene foam with a density of ≥18 kg / m³ is selected, coated with EPS board special adhesive (bonding area ≥40%) and then pasted on the outside of the inner load-bearing layer 103. It serves as a flexible partition layer to absorb temperature stress and reduce wall deformation.

[0023] Outer protective layer 101: 240mm thick solid concrete bricks (compressive strength greater than or equal to MU15) are laid on the outside of the middle insulation layer 102. During the construction process, C20 concrete ring beams are poured in layers to enhance the overall integrity and replace traditional coal gangue bricks to improve impact resistance and weather resistance.

[0024] Inner moisture-proof and sound-insulating structure: After cleaning and polishing the inner surface of the inner load-bearing layer 103, a 10mm thick aerogel coating 104 (water repellency greater than or equal to 98%) is applied in multiple coats; after the galvanized steel wire mesh is fully laid and fixed, a 12mm thick WPM15 mortar is applied as a base coat, followed by a 6mm thick coating-type polymer cement waterproof mortar, and finally a second coat of polyamide patterned resin airtight coating is applied to form an inner moisture-proof and airtight system.

[0025] External protective heat insulation structure: After cleaning the outer side of the outer protective layer 101, galvanized steel wire mesh is laid and fixed, and a 12mm thick WPM15 mortar is applied as a base and smoothed; a 1.5mm thick polymer cement waterproof coating is applied; finally, a synthetic resin latex sand-like architectural coating is sprayed, with 3-5 kg ​​of heat-insulating and reflective coating per square meter added to form a heat-insulating and reflective coating 105, which reduces the absorption of solar radiation heat.

[0026] Cavity interlayer: The gap between the inner load-bearing layer 103 and the outer protective layer 101 (with the same thickness as the intermediate insulation layer 102) forms a cavity interlayer, which, together with the elastic damping of the EPS intermediate insulation layer 102, improves the sound insulation of the wall.

[0027] By combining the aerogel coating 104, the inner load-bearing layer 103, the intermediate insulation layer 102, and the outer protective layer 101, external moisture can be prevented from penetrating into the wall. The dense structure of the solid concrete bricks on the outer side, which serves as the outer protective layer 101, combined with the molded polystyrene foam plastic used as the intermediate insulation layer 102 and the aerogel coating 104, forms a three-level moisture-proof system that "resists rainwater on the outside, blocks vapor penetration in the middle, and keeps the interior dry," avoiding the decrease in thermal insulation performance caused by water absorption (the thermal conductivity of EPS can increase by 50% after absorbing water). During construction: 1. Base wall treatment lays the foundation for subsequent construction; 2. Apply interface mortar to enhance the adhesion between the wall and the insulation layer; 3. Attach the insulation board and secure it with adhesive mortar; 4. Apply the finishing mortar (first layer) and initially cover with insulation board; 5. Lay alkali-resistant mesh fabric to improve crack resistance; 6. Apply the finishing mortar (second layer) and cover with mesh fabric; 7. Lay alkali-resistant mesh fabric again (for areas where reinforcement is needed, such as the external insulation finishing layer); 8. Apply finishing mortar (third layer) to complete the protective layer; 9. Carry out decorative surface construction to complete the appearance shaping; The wall structure of this flat grain storage facility can effectively solve the structural, heat preservation, moisture-proof, and sound insulation problems of traditional walls in complex foundations and high-humidity environments, thus ensuring the safety of grain storage.

[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Any other modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model, as long as they do not depart from the spirit and scope of the technical solution of this utility model, should be covered within the scope of the claims of this utility model.

Claims

1. A grain storage warehouse wall structure, characterized in that: It includes an inner load-bearing layer (103), an intermediate insulation layer (102), and an outer protective layer (101) arranged sequentially from the inside to the outside of the warehouse. The intermediate insulation layer (102) is an insulation board layer, which is bonded and fixed to the outer side of the inner load-bearing layer facing the outer protective layer. The inner side of the inner load-bearing layer (103) facing away from the intermediate insulation layer is coated with an aerogel coating (104).

2. The grain warehouse wall structure as described in claim 1, characterized in that: The insulation board layer is made of molded polystyrene foam.

3. The grain warehouse wall structure as described in claim 1, characterized in that: The inner load-bearing layer (103) is a reinforced concrete wall layer, and the outer protective layer (101) is a brick wall layer.

4. The grain warehouse wall structure as described in claim 1, characterized in that: The bottom of the inner load-bearing layer (103) is provided with an outwardly extending base step, and the intermediate insulation layer (102) and the outer protective layer (101) are provided on the base step.

5. The grain warehouse wall structure as described in claim 4, characterized in that: The thickness ratio of the inner stress layer (103) with the bottom of the inner stress layer (103) having an outwardly extending base step and aerogel coating (104), the upper inner stress layer (103), the middle insulation layer (102), and the outer protective layer (101) is 64:1:30:10:

24.

6. The grain warehouse wall structure as described in claim 5, characterized in that: The outer protective layer (101) is coated with a base treatment layer on its outer side facing away from the middle insulation layer. The base treatment layer is coated with a waterproof coating on its outer side facing away from the outer protective layer (101). The waterproof coating is coated with a heat-insulating and reflective coating (105) on its outer side facing away from the base treatment layer.

7. The grain warehouse wall structure as described in claim 1, characterized in that: A galvanized steel wire mesh is provided between the outer protective layer (101) and the intermediate insulation layer (102). The galvanized steel wire mesh is fixedly connected to the outer protective layer (101) and the intermediate insulation layer (102). A reinforcing layer, a waterproof mortar layer and an airtight coating are sequentially provided on the outside of the aerogel coating (104). The reinforcing layer is a fully covered galvanized steel wire mesh.

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