A building structure with sandbag walls and orthogonally laminated wooden rib roof trusses

Abstract

The present invention discloses a building structure with a sandbag wall and an orthogonal laminated wooden rib roof truss, comprising a sandbag wall, laminated wooden ribs fixed on top of the sandbag wall, a roof structure fixed on the laminated wooden ribs, or a skylight fixed on the top of the sandbag wall which is inwardly contracted; wherein the skylight is capable of collecting heat and feeding it back to the space enclosed by the sandbag wall.

Description

Technical field:

[0001] The invention relates to the technical field of building structures, in particular to a building structure with sandbag walls and orthogonally laminated wooden rib roof frames. Background technology:

[0002] Today, the traditional lifestyle of grassland herders has shifted from nomadic to fixed pastures, and traditional yurts are gradually being replaced by brick buildings. However, traditional brick buildings have the following disadvantages: first, local materials cannot be used, transportation costs are high, construction time is long, and additional craftsmen must be hired, increasing construction costs. Second, the use of large construction equipment and on-site wet work can easily cause significant damage to the grassland ecosystem. Third, building materials are non-recyclable and non-degradable, resulting in ineffective disposal and a burden on the ecology. The existing sandbag system solves these problems, achieving:

[0003] 1. Local materials are used, with a material ratio (local raw soil: cement) reaching 3.5:1;

[0004] 2. The construction is semi-dry operation, which is environmentally friendly and green;

[0005] 3. The construction technology is simple and suitable for local herdsmen to operate;

[0006] 4. The construction method is unique, does not require beam and column structure to bear the weight, and has low cost.

[0007] However, there is still room for improvement in the existing sandbag system, such as:

[0008] 1. Improvement of material ratio. Through research and experiments, the ratio of raw soil to cement can reach 10:1;

[0009] 2. Improvements in construction technology can shorten construction time, make operations more convenient, and achieve better molding results;

[0010] 3. It can meet the requirements of thermal insulation and waterproofing on the basis of the current sandbag construction.

[0011] Therefore, it is necessary to provide a building structure with sandbag walls and orthogonally laminated wooden rib roof frames to solve the problems raised in the above background technology. Summary of the invention:

[0012] The purpose of the present invention is to provide a building structure with sandbag walls and orthogonally laminated wooden rib roof frames.

[0013] To achieve the above-mentioned object, the present invention provides the following technical solution: a building structure with a sandbag wall and an orthogonal laminated wooden rib roof truss, comprising a sandbag wall, laminated wooden ribs fixed above the sandbag wall, a roof structure fixed on the laminated wooden ribs, or a skylight fixed on the upper portion of the sandbag wall;

[0014] The skylight can collect heat and feed it back to the space enclosed by the sandbag walls.

[0015] Further, preferably, the roof structure includes a roof panel and / or a skylight;

[0016] The roof panel comprises an OSB board, a polystyrene board, a waterproof layer, a mud leveling layer, and an aerogel coating layer arranged in sequence from bottom to top;

[0017] The sandbag wall includes a single sandbag wall structure or two sandbag wall structures, wherein rock wool is arranged between the two sandbag wall structures, and the sandbag wall structure includes an inner insulation layer, a sandbag layer and an outer insulation layer, wherein the sandbag layer includes a plurality of sandbags stacked in sequence, and the two sides of the sandbag body are designed in an arc shape or a straight line. The sandbag is filled with a mixture of: sheep dung bricks, clay, fiber, sand, and water, and before solidification, a connecting piece is inserted, and the bag body is burned after solidification.

[0018] Further, as a preference, the connecting member is a screw and / or a first T-shaped screw and / or a second T-shaped screw, and when the sandbag wall comprises rock wool, the connecting member is the first T-shaped screw;

[0019] The first T-shaped screw includes a screw and a first crossbar, the right side of the first crossbar wraps the sandbag on the right side, and the left side of the first crossbar forms a hook for hanging rock wool;

[0020] The second T-shaped screw includes a screw and a second cross bar, the right side of the second cross bar wraps the sandbag on the right side, and the left side of the second cross bar wraps the sandbag on the left side.

[0021] Further, as a preference, the inner insulation layer comprises: 1-2 layers of acrylic paint sprayed by a spray gun;

[0022] The outer thermal insulation layer comprises: 3-4 layers of acrylic paint sprayed by a spray gun, and then a mm thick aerogel thermal insulation paint is arranged on the outside of the acrylic paint.

[0023] Furthermore, preferably, a sandbag foundation located below the covering soil layer and medium-coarse sand located below the sandbag foundation are provided at the bottom of the sandbag wall.

[0024] Furthermore, preferably, the laminated wooden ribs include a plurality of first wooden ribs arrayed along the X direction and extending along the Y direction, and a plurality of second wooden ribs arrayed along the Y direction and extending along the X direction are fixed above the first wooden ribs.

[0025] Furthermore, preferably, the contact positions of the first wooden rib and the second wooden rib are connected by a screw structure, and the screw structure includes welded steel sheets and threaded rods, and the threaded rods pass through the stacked wooden ribs, perforated steel sheets, and gaskets in sequence to be connected to the nuts.

[0026] Further, preferably, the skylight includes a glass frame, a first glass and a second glass are embedded in the glass frame, a plurality of first heat absorbing sheets are arrayed on the surface of the first glass, a first heat conducting column passing through the first glass is provided below the first heat absorbing sheets, and a plurality of second heat absorbing sheets are arrayed on the surface of the second glass, a second heat conducting column passing through the second glass is provided below the second heat absorbing sheets;

[0027] The first heat absorbing sheets and the second heat absorbing sheets are arranged in a staggered manner.

[0028] Furthermore, preferably, a sealed space is formed between the first glass, the second glass and the glass frame;

[0029] The skylight also includes an adaptive air control component, which includes an air tank. A piston is sealed and slidably connected to the air tank. The air tank is also connected to the vent hole on the glass frame by a pipe. The vent hole is connected to the sealed space. A self-inflating bag is fixed to the upper part of the piston. The self-inflating bag is filled with liquid. The liquid expands when heated and contracts when cooled. The upper surface of the self-inflating bag is limited by the air tank and exposed to the air tank.

[0030] Furthermore, preferably, a return spring is connected between the piston and the air storage tank.

[0031] Compared with the prior art, the present invention provides a building structure with sandbag walls and orthogonally laminated wooden rib roof trusses, which has the following beneficial effects:

[0032] 1. Improved Material Ratio: Compared to the existing sandbag construction material ratio (raw soil: cement = 3.5:1), based on test results, we have improved the ratio to 10:1, reducing cement usage by 2.85 times and making the entire building more environmentally friendly and green. Universal testing also incorporated previously unused materials found in abundance on the grasslands, such as sheep dung bricks, fly ash, and cement, into the sandbag construction.

[0033] 2. Improvement of construction technology:

[0034] Using threaded rods instead of iron spikes not only enhances the stability of the connection between the upper and lower layers of sandbags, but also gives workers a better foothold on the sandbags, facilitating construction.

[0035] 3. With thermal insulation and waterproof properties:

[0036] The sandbag building has thermal insulation and waterproof properties, making the entire sandbag building more suitable for living and enhancing weather resistance.

[0037] 4. Improvement of skylight: Skylight has excellent heat collection effect, and because it is configured with a double-layer structure, it will not block the sunlight too much, but can also improve the heat collection effect, and can adaptively adjust the heat conduction. Description of the drawings:

[0038] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0039] Figure 1 This is a structural diagram of a building structure with sandbag walls and orthogonally laminated wooden rib roof trusses;

[0040] Figure 2 Schematic diagram of the sandbag wall structure in a building structure with orthogonal laminated wooden rib roof trusses Figure 1 ;

[0041] Figure 3 Schematic diagram of the sandbag wall structure in a building structure with orthogonal laminated wooden rib roof trusses Figure 1 ;

[0042] Figure 4 This is a structural diagram of a connecting member in a building structure with sandbag walls and orthogonally laminated wooden rib roof trusses;

[0043] Figure 5 A schematic diagram of the structure of laminated timber ribs in a building structure with sandbag walls and orthogonal laminated timber rib roof trusses;

[0044] Figure 6 A schematic diagram of a screw structure in a building structure with sandbag walls and orthogonally laminated wooden rib roof trusses;

[0045] Figure 7 This is a schematic diagram of the structure of a skylight in a building structure with sandbag walls and orthogonally laminated wooden rib roof trusses;

[0046] Figure 8 To consolidate the group experiment data table;

[0047] Figure 9 This is the experimental proportion table of sandbag building materials;

[0048] In the figure: 1. Sandbag wall; 2. Laminated wooden ribs; 3. Roof panels; 4. Skylight; 5. Sandbag foundation; 6. Medium-coarse sand; 11. Inner insulation layer; 12. Sandbags; 13. Outer insulation layer; 14. Connectors; 15. Rock wool; 21. First wooden rib; 22. Second wooden rib; 24. Steel sheet; 25. Threaded rod; 26. Perforated steel sheet; 27. Gasket; 28. Nut; 41. Glass frame; 42. First glass; 43. First heat absorbing sheet; 44. First heat conducting column; 45. Second heat absorbing sheet; 46. Second heat conducting column; 47. Vent; 48. Air tank; 49. Piston; 410. Self-inflating bladder. Specific implementation method:

[0049] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0050] Example: See Figures 1 to 9 In an embodiment of the present invention, a building structure with a sandbag wall and an orthogonal laminated wooden rib roof truss includes a sandbag wall 1, a laminated wooden rib 2 is fixed above the sandbag wall 1, and a roof structure is fixed on the laminated wooden rib 2, or a skylight 4 is fixed on the upper portion of the sandbag wall 1;

[0051] That is to say, the building structure of this embodiment includes at least two methods. First, in a larger space, the assembled laminated wooden ribs 2 are placed on the sandbag wall 1, and then the roof structure is built on the laminated wooden ribs 2. This is not only convenient for construction but also easy for drainage. Second, in a smaller space, the upper part of the sandbag wall 1 shrinks inward, eventually forming a small roof that can provide light.

[0052] Specifically, the sandbag wall 1 includes a single sandbag wall structure, which includes a sandbag layer 12, including multiple sandbags stacked in sequence. The sandbags need to be gradually inward-pointing, with a glass dome on the top to close the top. The specific steps are as follows:

[0053] ① The sandbags are gradually narrowed inwards, with the narrowing distance slightly less than 1 / 3 of the sandbag. For example, if the width of the sandbag is 300mm, a narrowing distance of 60-90mm is more appropriate.

[0054] ②Compacting stacked sandbags

[0055] The sand filling method is the same as that of the wall, that is, when a certain amount of filling material is filled, part of the filling material should be compacted. It should not be compacted until the entire circle is completed. It should be ensured that the filling material in the stacked sandbags is as dense as possible to enhance its strength after completion.

[0056] ③Insert connector 14

[0057] When a circle of stacked sandbags is completed, the connector 14 needs to be inserted through two layers of sandbags; that is, the connector 14 connects the current layer of stacked sandbags and the upper layer of stacked sandbags at the same time; the connector 14 that penetrates the two layers of stacked sandbags should be inserted less than 1 / 2 of the upper layer of stacked sandbags. For example, if the stacked sandbags are 300mm wide, it should be inserted at 130mm.

[0058] ④ Cover with waterproof layer

[0059] The dome is covered with a large piece of waterproof material cloth, and a protective surface layer is laid on the outside of the waterproof layer.

[0060] In this embodiment, the skylight 4 can collect heat and feed it back to the space enclosed by the sandbag wall 1 .

[0061] Furthermore, in this embodiment, the skylight 4 includes a glass frame 41, in which a first glass 42 and a second glass are embedded. A plurality of first heat absorbing sheets 43 are arrayed on the surface of the first glass 42, and a first heat conducting column 44 is provided below the first heat absorbing sheet 43 and passes through the first glass 42. A plurality of second heat absorbing sheets 45 are arrayed on the surface of the second glass, and a second heat conducting column 46 is provided below the second heat absorbing sheet 45 and passes through the second glass. The first heat absorbing sheets 43 and the second heat absorbing sheets 45 are arranged in a staggered manner.

[0062] The first heat absorbing sheet can realize multi-point heat collection, and the first heat conducting column 44 can transfer heat to the bottom. By arranging the second heat absorbing sheet, the heat collection effect can be increased. Moreover, since the first heat absorbing sheet 43 and the second heat absorbing sheet 45 are arranged in an alternating manner, they will not block all the light.

[0063] In addition, a sealed space is formed between the first glass 42, the second glass and the glass frame 41;

[0064] The sunroof 4 also includes an adaptive air control component, which includes an air tank 48, in which a piston 49 is sealed and slidably connected. The air tank 48 is also connected to the air vent 47 on the glass frame 41 by a pipe. The air vent 47 is connected to the sealed space. A self-inflating bag 410 is fixed to the upper part of the piston 49. The self-inflating bag 410 is filled with liquid. The liquid expands when heated and contracts when cooled. The upper surface of the self-inflating bag 410 is limited by the air tank 48 and is exposed to the air tank 48.

[0065] It should be explained that the self-expanding capsule 410 should be debugged in advance to cope with the local environmental climate;

[0066] In addition, when the external temperature is high, the self-inflating bag 410 expands, thereby driving the piston 49 to slide downward, thereby pushing the gas in the gas tank 48 to flow into the sealed space. In this way, the presence of gas in the sealed space can improve the heat conduction effect. When the external temperature is low, the self-inflating bag contracts, thereby driving the piston to slide upward, thereby sucking the gas in the sealed space. In this way, there is less gas in the sealed space, which can reduce the heat conduction effect and ensure that the indoor heat will not be transferred to the outside world too quickly.

[0067] As a preferred embodiment, a return spring is further connected between the piston 49 and the air storage tank 48.

[0068] In this embodiment, the roof structure includes a roof panel 3 and / or a skylight 4;

[0069] The roof panel 3 includes European pine board, polystyrene board, waterproof layer, mud leveling layer and aerogel coating layer arranged in sequence from bottom to top;

[0070] The sandbag wall 1 includes a single sandbag wall structure or two sandbag wall structures, wherein rock wool 15 is arranged between the two sandbag wall structures, and the sandbag wall structure includes an inner insulation layer 11, a sandbag layer 12 and an outer insulation layer 13, wherein the sandbag layer 12 includes a plurality of sandbags stacked in sequence, and the two sides of the sandbag body are designed in an arc shape or a straight line. The sandbag is filled with a mixture of: sheep dung bricks, clay, fiber, sand, and water, and before solidification, a connecting piece 14 is inserted, and the bag body is burned after solidification.

[0071] The bottom of the sandbag wall 1 is provided with a sandbag foundation 5 located below the overburden layer and medium-coarse sand 6 located below the sandbag foundation 5 .

[0072] Currently, most modern grassland buildings are made of cement and feature a range of modern amenities. However, cement buildings impact grassland vegetation, so the use of environmentally friendly materials is crucial for grassland conservation. Existing technologies utilize locally available materials, such as silt, sand, clay, and cement. The sand-to-cement ratio is controlled at approximately 3.5:1. The experimentally improved technology achieves a sand-to-cement ratio of 10-12:1, increasing the ratio of environmentally friendly materials by 2.5-3.5 times, significantly reducing the environmental impact of cement buildings.

[0073] Taking the grassland architecture in Siziwang Banner as an example, the main local materials, clay, slaked lime, fly ash, sand, and straw, were used, and aerogel and cement were added. The experimental modules were 100mm*100mm*100mm and compacted in two layers for group experiments. The demoulding time was 48 hours and the air drying time was 15 days. The specific experimental data are as follows: Figure 8 .

[0074] Through the above experiments, compared with the existing technology, this technology reduces the proportion of cement while still achieving the strength required for a wall by using the same local materials.

[0075] Considering the versatility of the invention, that is, it can also be applied in other different site environments, such as the use of sheep bricks, coal slag, slag, etc., the strength can still meet the standards, and it is suitable for sandbag construction. The sandbag building material experiment is based on the production ratio of traditional mortar and pestle, and on this basis, the strength of the material itself is verified and strengthened by adding fly ash, local straw, local sheep manure and other raw materials. In this experiment, the proportion of water is for the purpose of material bonding, and during the process of adding water, the material does not need to be loose when held in the hand. When stirring the material, it needs to be fully stirred and evenly mixed, and the middle part of the soil can be sampled. Through this material ratio experiment, a variety of local materials can meet the strength of the sandbag building wall, and can also reduce the proportion of cement. Compared with the wall ratio of the existing technology, it is greener and has higher strength; the specific experimental data are as follows Figure 9 .

[0076] In this embodiment, the connecting member 14 is a screw and / or a first T-shaped screw and / or a second T-shaped screw, and when the sandbag wall includes rock wool 15, the connecting member 14 is a first T-shaped screw;

[0077] The first T-shaped screw includes a screw and a first cross bar, the right side of the first cross bar wraps the sandbag on the right side, and the left side of the first cross bar forms a hook for hanging the rock wool 15;

[0078] The second T-shaped screw includes a screw and a second cross bar, the right side of the second cross bar wraps the sandbag on the right side, and the left side of the second cross bar wraps the sandbag on the left side.

[0079] In this embodiment, the inner insulation layer 11 comprises: 1-2 layers of acrylic paint sprayed by a spray gun;

[0080] The outer insulation layer 13 comprises: 3-4 layers of acrylic paint sprayed by a spray gun, and then 3mm thick aerogel insulation paint is arranged on the outside of the acrylic paint.

[0081] In this example, woven bags filled with independently developed raw earth material were used as sandbags. After each layer was overlapped, the bags inside and outside the building were burned with a flamethrower. The exterior of the building was sprayed with three to four layers of acrylic paint using a spray gun. A 3mm thick aerogel insulation coating was then applied over the acrylic coating. The aerogel insulation coating consists of an interface agent, a middle layer of insulation coating, and a surface layer of insulation coating. The interior of the building was directly sprayed with the aerogel insulation coating. Compared to existing buildings, this provides better insulation, with a thermal conductivity of 0.018. It is also more suitable for installation on building exterior walls, increasing construction speed by 30%.

[0082] In this embodiment, the laminated wooden ribs 2 include a plurality of first wooden ribs 21 arrayed along the X direction and extending along the Y direction, and a plurality of second wooden ribs 22 arrayed along the Y direction and extending along the X direction are fixed above the first wooden ribs 21 .

[0083] In addition, the contact positions of the first and second wooden ribs are connected by a screw structure, which includes a welded steel sheet 24 and a threaded rod 25. The threaded rod 25 passes through the laminated wooden ribs 2, the perforated steel sheet 26, and the gasket 27 in sequence to be connected to the nut 28.

[0084] This structural system primarily consists of timber ribs and connectors, with the timber ribs serving as the load-bearing structure. The timber ribs are glulam rods with variable cross-sections. The screw structure comprises welded steel sheets 24 and threaded rods 25. The threaded rods 25 pass through the laminated timber ribs 2, perforated steel sheets 26, and washers 27, before being connected to nuts 28.

[0085] The laminated wooden ribs in this structure are constructed from multiple sheets of 15x15mm glulam interlaced and stacked. To address the stresses inherent in stacking the ribs and maintain aesthetic appeal, the impact of horizontal and vertical rib placement on the overall structure and the stresses exerted by the screw structure at their interface were carefully considered. Because the deflection of the upper ribs is minimal and increases as they move downward, the top ribs are positioned vertically, while the lower ribs are positioned horizontally. This partially offsets the stresses and reduces damage to the structure. The horizontal placement of the lower ribs, eliminating seams, also enhances the aesthetics of the space.

[0086] Load tests on the screw structure have shown that it meets structural strength requirements while also saving materials. Load tests have confirmed that its load-bearing capacity is superior to that of traditional yurts, primarily addressing the poor weather resistance and small spans of existing yurts and contributing to the sustainable development of grasslands.

[0087] This laminated timber rib is primarily composed of several ribs and a screw structure, assembled into an orthogonal laminated timber rib structure through the splicing of prefabricated timber frames. The modular nature of the ribs facilitates factory production and reduces errors caused by component production in different factories and internal factory communication, thereby reducing communication and production costs. The high degree of assembly of the overall components also makes them easy to move and disassemble.

[0088] For interior functions, it creates a large-span, column-free space, making the interior more refined. It can be combined and stacked according to space and span requirements, making it more flexible and structurally stable. For energy conservation and emission reduction, the main material of the new wooden structure skeleton is wood. Compared with high-energy-consuming building materials such as cement and concrete, wood is green and pollution-free.

[0089] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A building structure with sandbag walls and orthogonally laminated wooden rib roof trusses, characterized in that: It comprises a sandbag wall (1), a laminated wooden rib (2) is fixed on the top of the sandbag wall (1), a roof structure is fixed on the laminated wooden rib (2), or the top of the sandbag wall (1) is retracted inwards and a skylight (4) is fixed thereon; The skylight (4) is capable of collecting heat and feeding it back to the space enclosed by the sandbag wall (1); The skylight (4) comprises a glass frame (41), a first glass (42) and a second glass are embedded in the glass frame (41), a plurality of first heat absorbing sheets (43) are arrayed on the surface of the first glass (42), a first heat conducting column (44) passing through the first glass (42) is arranged below the first heat absorbing sheet (43), a plurality of second heat absorbing sheets (45) are arrayed on the surface of the second glass, a second heat conducting column (46) passing through the second glass is arranged below the second heat absorbing sheet (45); The first heat absorbing sheet (43) and the second heat absorbing sheet (45) are arranged in a staggered manner; A sealed space is formed between the first glass (42), the second glass and the glass frame (41); The skylight (4) further includes an adaptive air control component, the adaptive air control component including an air tank (48), a piston (49) being sealed and slidably connected in the air tank (48), the air tank (48) being connected to a vent hole (47) on the glass frame (41) by a pipe fitting, the vent hole (47) being connected to a sealed space, a self-expanding capsule (410) being fixed on the upper part of the piston (49), the self-expanding capsule (410) being filled with liquid, the liquid expanding when heated and contracting when cooled, the upper surface of the self-expanding capsule (410) being limited by the air tank (48) and exposed to the air tank (48); A return spring is also connected between the piston (49) and the gas storage tank (48).

2. The building structure of the sandbag wall orthogonally laminated wooden rib roof truss according to claim 1, characterized in that: The roof structure includes a roof panel (3) and / or a skylight (4); The roof panel (3) comprises an OSB board, a polystyrene board, a waterproof layer, a mud levelling layer and an aerogel coating layer which are arranged in sequence from bottom to top; The sandbag wall (1) includes a single sandbag wall structure or two sandbag wall structures, wherein rock wool (15) is arranged between the two sandbag wall structures, and the sandbag wall structure includes an inner thermal insulation layer (11), a sandbag layer (12) and an outer thermal insulation layer (13), wherein the sandbag layer (12) includes a plurality of sandbags stacked in sequence, and the two sides of the sandbag body are designed in an arc shape or a straight line. The sandbag is filled with a mixture of: sheep dung bricks, clay, fiber, sand, and water, and before solidification, a connecting piece (14) is inserted, and the bag body is burned after solidification.

3. The building structure of the sandbag wall orthogonally laminated wooden rib roof truss according to claim 2, characterized in that: The inner thermal insulation layer (11) comprises: 1-2 layers of acrylic paint sprayed by a spray gun; The outer thermal insulation layer (13) comprises: 3-4 layers of acrylic paint sprayed by a paint spray gun, and then 3mm thick aerogel thermal insulation paint is arranged outside the acrylic paint.

4. The building structure of the sandbag wall orthogonally laminated wooden rib roof truss according to claim 2, characterized in that: The bottom of the sandbag wall (1) is provided with a sandbag foundation (5) located below the covering soil layer and medium-coarse sand (6) located below the sandbag foundation (5).

5. The building structure of the sandbag wall orthogonally laminated wooden rib roof truss according to claim 1, characterized in that: The laminated wooden ribs (2) include a plurality of first wooden ribs (21) arranged in an X-direction array and extending in a Y-direction, and a plurality of second wooden ribs (22) arranged in a Y-direction array and extending in the X-direction are fixed above the first wooden ribs (21).

6. The building structure of sandbag wall orthogonally laminated wooden rib roof truss according to claim 5, characterized in that: The contact positions of the first and second wooden ribs are connected by a screw structure, wherein the screw structure comprises a welded steel sheet (24) and a threaded rod (25), and the threaded rod (25) sequentially passes through the laminated wooden rib (2), the perforated steel sheet (26), and the washer (27) to be connected to the nut (28).

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