A steel structure wooden house with fire-retardant grass fragments for heat preservation and a building method
By using a combination of flame-retardant straw chips and high-density insulation boards in steel-structured wooden houses, the problems of high heat and earthquake resistance in traditional prefabricated houses in summer are solved, providing a simple, earthquake-resistant, and heat-insulating solution suitable for rural areas and earthquake-prone regions.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- 安建华
- Filing Date
- 2022-10-17
- Publication Date
- 2026-07-24
Smart Images

Figure CN115627828B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of wooden house technology, specifically to a steel-structured wooden house with flame-retardant straw shreds for insulation and its construction method. Background Technology
[0002] Prefabricated houses are a new type of environmentally friendly and economical housing with a light steel frame and bolted connections for components. They can be easily and quickly assembled and disassembled, achieving universal standardization of temporary buildings. They establish an environmentally friendly, energy-saving, fast and efficient construction concept, enabling temporary housing to enter a field of standardized products with serialized development, integrated production, complete supporting facilities, and the ability to be stored and reused multiple times.
[0003] When traditional prefabricated houses are in use, the hot and rainy summer weather causes direct sunlight to shine on the steel structure, which transfers heat into the house, raising the temperature inside and affecting the comfort of living. At the same time, these types of prefabricated houses cannot be fire-retardant or earthquake-resistant.
[0004] Therefore, the construction method of steel-framed wooden houses with fire-retardant straw shreds for insulation has become an urgent problem to be solved. Summary of the Invention
[0005] The technical problem to be solved by the present invention is to provide a steel-structured wooden house that is heat-insulating, flame-retardant, earthquake-resistant, easy to build, and comfortable to live in, as well as a method for building the same.
[0006] To solve the above-mentioned technical problems, the technical solution provided by this invention is as follows: a steel-structured wooden house with fire-retardant straw chips for insulation, comprising walls, high-density fire-retardant insulation boards, inner wall panels, and a roof; the walls are enclosed on four sides, and square steel is used as the wall columns, with one column spaced 3-4 meters apart, and each column is anchored with a cement anchor. Every two columns are welded together with square steel, and door and window positions are provided; a first bamboo plywood is fixed to the outside of the walls, and the high-density fire-retardant insulation board is laid on the outside of the first bamboo plywood; the inner wall panels are fixed to the inside of the walls; Flame retardant is filled between the interior wall panel and the first bamboo plywood, and insect repellent is filled every 50cm between the flame retardant and the wall. A main beam is erected on top of the wall, and the main beam is welded into a tripod. A diagonal bracing is added between the main beam and the wall. A second bamboo plywood is laid on top of the main beam and the diagonal bracing. Waste cardboard pieces are laid around the second bamboo plywood. Old clothes or quilts mixed with gypsum powder or sifted fine soil are laid on top of the second bamboo plywood and the waste cardboard pieces. Long straw or wheat straw is then laid on top of this, and finally, compacted soil is laid on top of this. The roof is fixed to the columns on top of the compacted soil.
[0007] A method for constructing a steel-framed wooden house includes the following steps:
[0008] Step 1: Set up columns on the four walls of the house, build cement anchors under the columns, and the distance between two adjacent columns should be 3-4 meters. After leaving the door and window openings between two adjacent columns, weld them together with square steel to form a house frame.
[0009] Step 2: Tightly fix bamboo plywood of varying thicknesses (1.1cm or 1.5cm) to the outside of the house frame. Then, first paste or nail 10cm or 15cm thick high-density flame-retardant insulation board onto the bamboo plywood, and then apply mesh, plaster, and paint to the outside.
[0010] Step 3: Cut gypsum board or bamboo plywood into 60cm wide strips for the interior wall and fix them to the square steel. Fill the 20cm gap between the inner and outer boards with dried rice straw or wheat straw mixed with a certain amount of fire-retardant gypsum powder or sifted fine soil. Place mothballs every 45-55cm from top to bottom until the entire wall is filled.
[0011] Step 4, Roofing Main Beam: Two square steel beams, one above the other, with a 15cm gap in the middle, are welded into a triangular shape with round steel to increase strength. Then, the square steel beams are welded onto the main beam. The bamboo plywood is then fixed in place. A ring of waste cardboard is laid around the perimeter of the roof. On top, 20cm of old clothes or quilts mixed with gypsum powder or sifted fine soil for flame retardancy are laid. Then, about 10cm of long straw or wheat straw is laid. Finally, a layer of about 5cm of soil is added on top, and the surface is watered and compacted.
[0012] Step 5: Use color steel plates and square steel to make a "five beams and four slopes" waterproof structure on the roof.
[0013] The advantages of this invention compared to existing technologies are as follows: This invention uses locally sourced materials, such as straw scraps (old clothes or cotton quilts) for insulation, which is inexpensive and efficient; it uses sifted fine soil for flame retardancy, which is cost-effective and practical; the construction period is short and the building is not damp; it is earthquake-resistant, clean, heat-insulating, fire-retardant, simple, and labor-saving; the houses can be large or small, high or low, and the room layout can be adjusted by the individual; the overall structure is simple, with low terrain and technical requirements; the construction period is short; the house is lightweight, structurally sound, and inexpensive; it can be built independently and is easy to popularize; it can be decorated and occupied immediately after completion, without the need for cooling or dampness; it is most suitable for construction and use in rural areas, suburbs, and earthquake-prone areas, and is far superior to other types of single-story houses. Attached Figure Description
[0014] Figure 1 This is a structural diagram of a steel-framed wooden house.
[0015] Figure 2 This is a schematic diagram of the steel structure frame of a steel-framed wooden house.
[0016] Figure 3 This is a structural schematic diagram of the main beam.
[0017] Figure 4 It is a cross-sectional view of the wall.
[0018] Figure 5 This is a schematic diagram of the structural cross-section between the main beam and the roof.
[0019] As shown in the figure: 1. Wall, 2. High-density flame-retardant insulation board, 3. Interior wall panel, 4. Roof, 5. Column, 6. Cement ground anchor, 7. First bamboo plywood, 8. Flame retardant, 9. Insect repellent, 10. Main beam, 11. Cable tie beam, 12. Second bamboo plywood, 13. Waste cardboard box pieces, 14. Straw chips mixed with gypsum powder or sieved fine soil, 15. Long rice straw or wheat straw, 16. Compacted soil. Detailed Implementation
[0020] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", "vertical", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.
[0021] In the description of this invention, "first feature" and "second feature" may include one or more of the indicated features. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" and "second" may explicitly or implicitly include one or more of the indicated features.
[0022] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.
[0023] The following detailed description, in conjunction with the accompanying drawings, illustrates the present invention of a steel-structured wooden house using flame-retardant straw chips for insulation and its construction method.
[0024] Combined with appendix Figure 1-5 This invention will be described in detail below.
[0025] A method for constructing a steel-framed wooden house includes the following steps:
[0026] Step 1: Set up columns on the four walls of the house, build cement anchors under the columns, and the distance between two adjacent columns should be 3-4 meters. After leaving the door and window openings between two adjacent columns, weld them together with square steel to form a house frame.
[0027] Step 2: Tightly fix bamboo plywood of varying thicknesses (1.1cm or 1.5cm) to the outside of the house frame. Then, first paste or nail 10cm or 15cm thick high-density flame-retardant insulation board onto the bamboo plywood, and then apply mesh, plaster, and paint to the outside.
[0028] Step 3: Cut gypsum board or bamboo plywood into 60cm wide strips for the interior wall and fix them to the square steel. Fill the 20cm gap between the inner and outer boards with dried rice straw or wheat straw mixed with a certain amount of fire-retardant gypsum powder or sifted fine soil. Place mothballs every 45-55cm from top to bottom until the entire wall is filled.
[0029] Step 4, Roof Main Beam: Two square steel beams, one above the other, with a 15cm gap in the middle, are welded together with round steel to form a triangular shape to increase strength. Then, the square steel beams are welded onto the main beam. When building the roof main beam, if the room is divided into small rooms, support columns need to be set in the partition walls of the small rooms to increase the roof's support. Then, fix the bamboo plywood in sequence. Lay a ring of waste cardboard boxes around the perimeter of the roof, then lay 20cm of old clothes or quilts mixed with gypsum powder or sifted fine soil for fire retardancy, then lay about 10cm of long straw or wheat straw, and finally cover it with a 5cm layer of soil, sprinkle water and compact it.
[0030] Step 5: Use color steel plates and square steel to make a "five beams and four slopes" waterproof structure on the roof.
[0031] The supporting columns for the four walls of the house are made of 10*10cm square steel, and the remaining square steel is made of 4*6cm.
[0032] A steel-framed wooden house with fire-retardant straw chips for insulation includes walls 1, high-density fire-retardant insulation boards 2, inner wall panels 3, and a roof 4. The walls 1 are enclosed on four sides, with square steel columns 5 erected at 3-4 meter intervals. Each column 5 is anchored with a cement anchor 6, and every two columns 5 are welded together with square steel, leaving space for doors and windows. A first bamboo plywood board 7 is fixed to the outside of the walls 1, and the high-density fire-retardant insulation board 2 is laid on the outside of the first bamboo plywood board 7. The inner wall panels 3 are fixed to the inside of the walls 1. A fire-retardant material 8 is filled between the inner wall panels 3 and the first bamboo plywood board 7. Every 50cm, the combustible material 8 is filled with insect-proof material 9; a main beam 10 is erected on the top of the wall 1, and the main beam 10 is welded into a triangular frame. A diagonal bracing beam 11 is added between the main beam 10 and the wall 1; a second bamboo plywood 12 is laid on top of the main beam 10 and the diagonal bracing beam 11, and waste cardboard pieces 13 are laid around the second bamboo plywood 12. The second bamboo plywood 12 and the waste cardboard pieces 13 are covered with straw fragments 14 (old clothes or cotton quilts) mixed with gypsum powder or sifted fine soil, and then long straw or wheat straw 15 is laid on top, and then compacted soil 16 is laid on top; the roof 4 is fixed on the column 5 on top of the compacted soil 16.
[0033] High-density flame-retardant insulation board 2 has external mesh, plastering, and roller coating; interior wall panel 3 is gypsum board or bamboo plywood; flame retardant 8 is a mixture of gypsum powder or sieved fine soil mixed with long rice straw or wheat straw 15; insect repellent 9 is camphor balls; roof 4 is color steel plate.
[0034] The specific implementation process of this invention, which uses flame-retardant straw chips for insulation and a method for constructing a steel-structured wooden house, is as follows:
[0035] The four walls of the house 1 are supported by 10*10cm square steel or 110 steel pipe as columns 5. Cement anchors 6 are built under the columns 5. The number and thickness of the columns 5 can be increased or decreased depending on the size of the house. Generally, the spacing is 3-4 meters. Between every two columns 5, 4*4cm or 4*6cm square steel is welded to both sides of the columns 5 to form the shape of the house. Leave the positions of doors and windows during the welding process.
[0036] On the outside of wall 1, a first bamboo plywood 7 of varying thickness (1.1 or 1.5 cm) is tightly fixed. Then, a high-density flame-retardant insulation board 2 of 10 or 15 cm thickness is first pasted and then nailed to the wooden board. Finally, a mesh is hung on the outside, and a mortar is applied and a paint is rolled on.
[0037] Cut plasterboard or bamboo plywood into strips about 60cm wide on the inside of wall 1 (to facilitate filling with straw shreds), and fix them to the square steel. Fill the 20cm wide gap between the inner and outer boards (column 5 10cm, plus 6cm on the outer side of column 5 and 4cm on the inner side of column 5) with dried rice straw or wheat straw shreds mixed with a certain amount of gypsum powder or sifted fine soil for fire retardancy. Place an appropriate amount of mothballs every 50cm or so at the top and bottom (to prevent insect damage) until the entire wall is filled.
[0038] Roof main beam 10: Two 4*6cm square steel bars, with a 15cm gap in the middle, are welded into a triangular shape with round steel to increase strength (when dividing the room into small rooms, several pillars are set in the partition walls of the small rooms to increase the support of the roof). Then the 4*6cm square steel bars are welded to the main beam 10 (the strength of the roof can be increased or decreased according to the size of the roof area and the length of the span). Then the second bamboo plywood 12 is fixed in sequence. A ring of waste cardboard 13 is laid around the roof (to increase the heat insulation performance). On top of this, 20cm of straw shreds mixed with gypsum powder or sifted fine soil for fire retardancy are laid. Then, about 10cm of long rice straw or wheat straw is laid. On top of the straw, a layer of about 5cm of soil is added, and water is sprinkled and compacted.
[0039] The roof 4 is waterproofed with a "five beams and four slopes" structure using color steel plates and 4x6cm square steel.
[0040] This house can be moved or fixed, and a second floor can be added to the top. The roof is a two-layer structure. The first layer is a flat, insulated roof composed of square steel, bamboo plywood, fire-retardant insulating straw shreds, and soil. The second layer is a five-beam, four-sloped, waterproof roof composed of square steel and color steel plates. The flat beams are welded together from two layers of steel pipes with threaded steel sandwiched in between.
[0041] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the invention, such designs should fall within the protection scope of the present invention.
Claims
1. A method for constructing a steel-structured wooden house, characterized in that: Includes the following steps, Step 1: Set up columns on the four walls of the house, build cement anchors under the columns, and the distance between two adjacent columns should be 3-4 meters. After leaving the door and window openings between two adjacent columns, weld them together with square steel to form a house frame. Step 2: Tightly fix 1.1cm or 1.5cm thick bamboo plywood to the outside of the house frame, then first paste and then nail 10cm or 15cm thick high-density fire-retardant insulation board onto the bamboo plywood, and then apply mesh, plaster and paint on the outside. Step 3: Cut gypsum board or bamboo plywood into 60cm wide strips for the interior wall and fix them to the square steel. Fill the 20cm gap between the inner and outer boards with dried rice straw or wheat straw mixed with a certain amount of fire-retardant gypsum powder or sifted fine soil. Place mothballs every 45-55cm from top to bottom until the entire wall is filled. Step 4, Roofing main beam: Two square steel bars, one above the other, with a 15cm gap in the middle, are welded into a triangular shape with round steel to increase strength. Then the square steel bars are welded onto the main beam. The bamboo plywood is then fixed in place. A ring of waste cardboard is laid around the perimeter of the roof. On top, 20cm of old clothes or quilts mixed with gypsum powder or sifted fine soil for flame retardancy are laid. Then, about 10cm of long straw or wheat straw is laid. Finally, a layer of about 5cm of soil is added on top, and the soil is sprinkled with water and compacted. Step 5: Use color steel plates and square steel to make a "five beams and four slopes" waterproof structure on the roof.
2. The method for constructing a steel-structured wooden house according to claim 1, characterized in that: When constructing the main roof beam in step 4, if the room is divided into small rooms, support columns need to be installed in the partition walls of the small rooms to increase the roof's support strength.
3. The method for constructing a steel-structured wooden house according to claim 2, characterized in that: The supporting columns of the four walls of the building are made of 10*10cm square steel, and the remaining square steel is made of 4*6cm.
4. A steel-framed wooden house with fire-retardant straw chips for insulation, characterized in that: The system includes walls, high-density flame-retardant insulation boards, interior wall panels, and a roof. The walls are enclosed on four sides, with square steel columns as supports. Each column is spaced 3-4 meters apart, and each column is anchored to a concrete base. The columns are welded together with square steel, and door and window positions are provided. A first bamboo plywood board is fixed to the outer side of the walls, and the high-density flame-retardant insulation board is laid on the outer side of the first bamboo plywood board. The interior wall panels are fixed to the inner side of the walls. Flame-retardant material is filled between the interior wall panels and the first bamboo plywood board. Flame retardant is filled with insect-proof material every 50cm; a main beam is erected on the top of the wall, the main beam is welded into a triangular frame, and a diagonal bracing is added between the main beam and the wall; a second bamboo plywood is laid on top of the main beam and the diagonal bracing, waste cardboard pieces are laid around the second bamboo plywood, old clothes or quilts mixed with gypsum powder or sifted fine soil are laid on top of the second bamboo plywood and waste cardboard pieces, and then long straw or wheat straw is laid on top, and then compacted soil is laid on top; the roof is fixed on the columns on top of the compacted soil.
5. A steel-structured wooden house with flame-retardant straw chips for insulation as described in claim 4, characterized in that: The high-density flame-retardant insulation board is externally coated with a mesh, slurry, and roller coating.
6. A steel-structured wooden house with flame-retardant straw chips for insulation as described in claim 5, characterized in that: The interior wall panels are gypsum board or bamboo plywood.
7. A steel-structured wooden house with flame-retardant straw shreds for insulation as described in claim 6, characterized in that: The flame retardant is a mixture of gypsum powder or sieved fine soil mixed with rice straw or wheat straw.
8. A steel-structured wooden house with flame-retardant straw chips for insulation as described in claim 7, characterized in that: The insect repellent is camphor balls.
9. A steel-structured wooden house with flame-retardant straw chips for insulation as described in claim 8, characterized in that: The roof is made of corrugated steel sheet.