Lattice wooden column capable of improving fire resistance
Through the design of outsourcing thin steel plate wooden limbs and pads between limbs, the problem of poor fire resistance of lattice wooden columns is solved, the fire resistance performance is improved and the stability is enhanced, and the construction is convenient and environmentally friendly.
Patent Information
- Application Number
- CN202422200908.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-09
- Publication Date
- 2025-07-04
- Estimated Expiration
- 2034-09-09
AI Technical Summary
The fire resistance of the lattice wooden column composed of small-diameter wood is poor. Under the action of fire, the area of fire is large, and the mechanical properties deteriorate quickly, resulting in a reduced bearing capacity, limiting its popularity and application.
The design of outsourcing thin steel plate wooden limbs and inter-limb pads is adopted, and the whole is formed by bolt connection. The outsourcing thin steel plate wooden limbs and the trellis wood board form a lattice wooden column to prevent heat transfer and hide the carbonization layer, improving fire resistance.
Effectively prevent heat from being transferred to the inside, extend fire resistance, improve the stability and bearing capacity of lattice wooden columns, while maintaining convenient construction and environmentally friendly characteristics.
Smart Images
Figure CN223061872U_ABST
Abstract
Description
Technical Field
[0001] The present invention belongs to the field of building technology, and particularly relates to a lattice wooden column with improved fire resistance performance. Background Art
[0002] As one of the important components of a wooden structure building, wooden columns usually need to be made of large-diameter logs. However, the output of large-diameter logs produced in China is small, while the output of small-diameter logs is large. Small-diameter logs refer to the logs with a diameter ranging from 100 mm to 225 mm felled from natural secondary forests or artificial fast-growing forests. Using lattice columns composed of small-diameter logs instead of solid wooden columns in wooden structures can save a large amount of high-quality wood and improve the utilization rate and value of small-diameter logs. However, the fire resistance performance of lattice wooden columns composed of small-diameter logs is poor. Compared with solid wooden columns, the fire-exposed area of lattice wooden columns is larger under fire conditions, and the mechanical properties deteriorate faster, resulting in a sharp decrease in the bearing capacity of the wooden columns. Therefore, how to effectively solve the fire prevention and fire resistance problems of lattice wooden columns has become a major problem restricting the popularization and rapid development of lattice wooden columns. Summary of the Invention
[0003] In view of the above technical problems, the present invention provides a lattice wooden column with improved fire resistance performance, which can effectively prevent external heat from transferring to the inside, thereby increasing the fire resistance time and stability of the lattice wooden column, and can effectively solve the problems of fire prevention and fire resistance of the lattice wooden column.
[0004] The purpose of the present invention is achieved through the following technical solutions:
[0005] A lattice wooden column with improved fire resistance performance of the present invention includes a plurality of wooden members with outer thin steel plates, spacers between members, and tongue-and-groove wooden boards; a number of wooden members with outer thin steel plates are vertically arranged side by side in a rectangle, and spacers are arranged at intervals along the axial direction between adjacent wooden members with outer thin steel plates. Each two adjacent wooden members with outer thin steel plates are spaced by the spacers between members and connected by bolts to form a whole. A layer of tongue-and-groove wooden boards is connected by long pins on the periphery of the whole to form a rectangular lattice wooden column.
[0006] Further, the spacers are at least arranged at intervals at the upper, middle, and lower positions along the axial direction of the wooden members with outer thin steel plates.
[0007] Further, the wooden members with outer thin steel plates include outer thin steel plates of the members, small-diameter wooden columns, and a plurality of pins I. The outer periphery of the small-diameter wooden columns is wrapped with the outer thin steel plates of the members, and partial overlaps are provided at the interfaces of adjacent segments of the outer thin steel plates of the members and fixed by the pins I.
[0008] Furthermore, a number of through wood pin holes are provided on the side surface of the small-diameter wooden column, and a number of thin steel plate holes are provided on the outer thin steel plate of the limb member. After the outer thin steel plate of the limb member wraps the small-diameter wooden column, the wood pin holes and the thin steel plate holes have the same diameter and corresponding positions, together forming reserved bolt holes for the outer-wrapped thin steel plate wooden limb member.
[0009] Furthermore, the spacer block between the limb members includes an outer thin steel plate of the spacer block, a wooden spacer block and a plurality of pins II. The outer thin steel plate of the spacer block wraps around the outer periphery of the wooden spacer block, and partially overlaps at the interface of the adjacent outer thin steel plates of the spacer block, and is fixed by the pins II.
[0010] Furthermore, a number of through wooden spacer block pin holes are provided on the side surface of the wooden spacer block, and a number of outer thin steel plate holes of the spacer block are provided on the outer thin steel plate of the spacer block. After the outer thin steel plate wraps the wooden spacer block, the wooden spacer block pin holes and the outer thin steel plate holes of the spacer block have the same diameter and corresponding positions, together forming reserved bolt holes for the spacer block between the limb members.
[0011] Furthermore, the bolts pass through the reserved bolt holes of the limb members and the reserved bolt holes of the spacer blocks to connect a number of outer-wrapped thin steel plate wooden limb members and the spacer blocks between the limb members into a whole.
[0012] Furthermore, the tongue-and-groove wooden board has a groove on one connecting end face of the wooden board and a rib that cooperates with the groove for plugging on the other end face, forming an outer wrapping board without through gaps between adjacent tongue-and-groove wooden boards.
[0013] The beneficial effects of the present invention are as follows:
[0014] 1. The small-diameter wooden column of the present utility model is wrapped with a thin steel plate to form an outer-wrapped thin steel plate wooden limb member. The thin steel plate can effectively isolate air, making the interior of the outer-wrapped thin steel plate wooden limb member in an oxygen-deficient state when exposed to fire, so that the combustible gas pyrolyzed from the small-diameter wooden column and oxygen cannot reach the combustion ratio. At the same time, after the small-diameter wooden column wrapped with the thin steel plate is carbonized, its carbonized layer can effectively prevent external heat from being transferred to the interior, thereby improving the fire resistance of the lattice wooden column.
[0015] 2. The wooden spacer block of the present utility model is wrapped with an outer thin steel plate of the spacer block to form an outer-wrapped thin steel plate wooden spacer block between the limb members. In a fire, the outer thin steel plate of the spacer block can effectively isolate air and extend the fire resistance time of the outer-wrapped thin steel plate wooden spacer block between the limb members, thereby improving the stability of the lattice wooden column in a fire.
[0016] 3. The lattice wooden column of the present utility model is nailed with a layer of tongue-and-groove wooden boards around the periphery, and there are no through gaps between the tongue-and-groove wooden boards. When exposed to fire, the tongue-and-groove wooden boards are carbonized, and the carbonized layer can block the heat from being transferred to the interior of the lattice wooden column, improving the fire resistance of the lattice wooden column. And the tongue-and-groove wooden boards can effectively hide the steel plates and fully display the beauty and texture of the wood.
[0017] 4. The lattice wooden column proposed by the present utility model does not use adhesives during the manufacturing process, has a simple manufacturing process, convenient construction, does not require special machinery, uses simple materials, has a low cost, is green and environmentally friendly, and can reduce construction costs. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is a schematic three-dimensional structure diagram of a partial cross-section of the present invention.
[0019] Figure 2 is Figure 1 the top view of.
[0020] Figure 3 It is a schematic three-dimensional structure diagram of a partial cross-section of the wooden limb member with an outer thin steel plate of the present invention.
[0021] Figure 4 is Figure 3 the three-dimensional structure diagram of the small and medium diameter wooden column.
[0022] Figure 5 is Figure 3 the three-dimensional structure diagram of the outer thin steel plate of the small and medium diameter wooden column.
[0023] Figure 6 It is a schematic three-dimensional structure diagram of the spacer block between the limb members of the present invention.
[0024] Figure 7 is Figure 6 the three-dimensional structure diagram of the wooden spacer block.
[0025] Figure 8 is Figure 6 the three-dimensional structure diagram of the outer thin steel plate of the spacer block.
[0026] In the figure: 1 is the wooden limb member with an outer thin steel plate; 1-1 is the reserved bolt hole of the limb member; 2 is the spacer block between the limb members; 2-1 is the reserved bolt hole of the spacer block between the limb members; 3 is the bolt; 4 is the tongue-and-groove wooden board; 5 is the small diameter wooden column; 5-1 is the wooden pin hole; 6 is the outer thin steel plate of the limb member; 6-1 is the hole of the outer thin steel plate of the limb member; 7 is the wooden spacer block; 7-1 is the wooden pin hole of the wooden spacer block; 8 is the outer thin steel plate of the spacer block; 8-1 is the hole of the outer thin steel plate of the spacer block; 9 is the long pin; 10 is the pin Ⅰ, 11 is the pin Ⅱ. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0027] The present invention will be described in detail below with reference to the drawings and embodiments.
[0028] Embodiment: As Figure 1 、 Figure 2As shown in the figure, a lattice wooden column for improving fire resistance according to the present invention includes a plurality of wooden members 1 with thin steel plates wrapped outside, spacers 2 between the members, and tongue-and-groove wooden boards 4. A number of wooden members 1 with thin steel plates wrapped outside are arranged vertically and parallelly in a rectangle. In this example, there are 4, which are located at the four corners of the rectangle. Spacers 2 are arranged at intervals along the axial direction between adjacent wooden members 1 with thin steel plates wrapped outside. Every two adjacent wooden members 1 with thin steel plates wrapped outside are spaced by the spacers 2 between the members and connected by bolts 3 to form an integral body. A layer of tongue-and-groove wooden boards 4 is connected by long pins 9 on the periphery of the integral body to form a rectangular lattice wooden column.
[0029] The spacers 2 are arranged at least at the upper, middle, and lower positions along the axial direction of the wooden members 1 with thin steel plates wrapped outside, and are specifically determined according to the length of the wooden members 1 with thin steel plates wrapped outside.
[0030] As Figures 3 - 5 shown in the figure, the wooden members 1 with thin steel plates wrapped outside include outer thin steel plates 6 of the members, small-diameter wooden columns 5, and a plurality of pins I 10. The outer periphery of the small-diameter wooden columns 5 is wrapped with the outer thin steel plates 6 of the members, and the interfaces of adjacent sections of the outer thin steel plates 6 of the members partially overlap and are fixed by the pins I 10.
[0031] As Figure 4 、 Figure 5 shown in the figure, a number of through wooden pin holes 5-1 are opened on the side surfaces of the small-diameter wooden columns 5, and a number of thin steel plate holes 6-1 are opened on the outer thin steel plates 6 of the members. After the outer thin steel plates 6 of the members wrap the small-diameter wooden columns 5, the diameters of the wooden pin holes 5-1 and the thin steel plate holes 6-1 are the same and the positions correspond to each other, together forming the reserved bolt holes 1-1 of the wooden members 1 with thin steel plates wrapped outside.
[0032] As Figures 6 - 8 shown in the figure, the spacers 2 between the members include outer thin steel plates 8 of the spacers, wooden spacers 7, and a plurality of pins II 11. The outer thin steel plates 8 of the spacers are wrapped around the outer periphery of the wooden spacers 7, and the interfaces of adjacent outer thin steel plates 8 of the spacers partially overlap and are fixed by the pins II 11.
[0033] As Figure 7 、 Figure 8 shown in the figure, a number of through wooden spacer pin holes 7-1 are opened on the side surfaces of the wooden spacers 7, and a number of outer thin steel plate holes 8-1 are opened on the outer thin steel plates 8 of the spacers. After the outer thin steel plates 8 wrap the wooden spacers 7, the diameters of the wooden spacer pin holes 7-1 and the outer thin steel plate holes 8-1 are the same and the positions correspond to each other, together forming the reserved bolt holes 2-1 of the spacers 2 between the members.
[0034] The bolts 3 pass through the reserved bolt holes 1-1 of the members and the reserved bolt holes 2-1 of the spacers to connect a number of wooden members 1 with thin steel plates wrapped outside and the spacers 2 between the members into an integral body.
[0035] The tongue-and-groove wooden board 4 has a groove on one connecting end face of the wooden board and a rib matching and inserted with the groove on the other end face, forming an outer wrapping board without a through gap between adjacent tongue-and-groove wooden boards 4.
[0036] The working principle of the utility model:
[0037] When exposed to fire, the tongue-and-groove wooden board 4 undergoes carbonization. The carbonized layer can block the transfer of heat to the inside of the lattice wooden column. After the carbonized layer falls off, since the small-diameter wooden column 5 is tightly wrapped by the outer thin steel plate 6 of the limb and the wooden spacer 7 is tightly wrapped by the outer thin steel plate 8 of the spacer, the combustible gas pyrolyzed from the small-diameter wooden column 5 and the wooden spacer 7 cannot reach the combustion ratio with oxygen. At the same time, after the small-diameter wooden column 5 and the wooden spacer 7 are carbonized, their carbonized layers are not easily detached under the action of the outer thin steel plate 6 of the limb and the outer thin steel plate 8 of the spacer, and the formed carbonized layer can effectively prevent the external heat from transferring to the inside, thereby improving the fire resistance time and stability of the lattice wooden column.
[0038] The components not described in detail in this application are all conventional existing technologies and will not be elaborated here.
[0039] It can be understood that the above specific description of the present invention is only for explaining the present invention and is not limited to the technical solutions described in the embodiments of the present invention. Those of ordinary skill in the art should understand that the present invention can still be modified or equivalently replaced to achieve the same technical effect; as long as it meets the use requirements, it is within the protection scope of the present invention.
Claims
1. A lattice wooden column for improving fire resistance performance, characterized in that: It includes multiple externally wrapped thin steel plate wooden limb members (1), limb member spacers (2) and tongue-and-groove wooden boards (4); several externally wrapped thin steel plate wooden limb members (1) are arranged vertically and parallelly side by side in a rectangle, and spacers (2) are arranged at intervals along the axial direction between adjacent externally wrapped thin steel plate wooden limb members (1). Each two adjacent externally wrapped thin steel plate wooden limb members (1) are spaced by the limb member spacers (2) and connected by bolts (3) to form an integral body. A layer of tongue-and-groove wooden board (4) is connected by long pins (9) on the periphery of the integral body to form a rectangular lattice wooden column.
2. The lattice wooden column for improving fire resistance according to claim 1, characterized in that: The spacers (2) are arranged at intervals at least at the upper, middle and lower positions along the axial direction of the externally wrapped thin steel plate wooden limb members (1).
3. The latticed wooden column for improving fire resistance according to claim 1, wherein: The externally wrapped thin steel plate wooden limb member (1) includes an outer thin steel plate of the limb member (6), a small-diameter wooden column (5) and multiple pins I (10). The outer periphery of the small-diameter wooden column (5) is wrapped with the outer thin steel plate of the limb member (6), and the interfaces of adjacent sections of the outer thin steel plate of the limb member (6) partially overlap and are fixed by pins I (10).
4. The lattice wooden column for improving fire resistance according to claim 3, characterized in that: A number of through wooden pin holes (5-1) are opened on the side surface of the small-diameter wooden column (5), and a number of thin steel plate holes (6-1) are opened on the outer thin steel plate of the limb member (6). After the outer thin steel plate of the limb member (6) wraps the small-diameter wooden column (5), the wooden pin holes (5-1) and the thin steel plate holes (6-1) have the same diameter and corresponding positions, and together they form the reserved bolt holes (1-1) of the externally wrapped thin steel plate wooden limb member.
5. The lattice wooden column for improving fire resistance according to claim 1, wherein: The limb member spacer (2) includes an outer thin steel plate of the spacer (8), a wooden spacer (7) and multiple pins II (11). The outer thin steel plate of the spacer (8) wraps the periphery of the wooden spacer (7), and the interfaces of adjacent outer thin steel plates of the spacer (8) partially overlap and are fixed by pins II (11).
6. The latticed wooden column for improving fire resistance according to claim 5, wherein: A number of through wooden spacer pin holes (7-1) are opened on the side surface of the wooden spacer (7), and a number of outer thin steel plate holes of the spacer (8-1) are opened on the outer thin steel plate of the spacer (8). After the outer thin steel plate (8) wraps the wooden spacer (7), the wooden spacer pin holes (7-1) and the outer thin steel plate holes of the spacer (8-1) have the same diameter and corresponding positions, and together they form the reserved bolt holes (2-1) of the limb member spacer.
7. The lattice wooden column for improving fire resistance according to claim 1, characterized in that: The bolt (3) passes through the reserved bolt holes (1-1) of the limb member and the reserved bolt holes (2-1) of the spacer to connect several externally wrapped thin steel plate wooden limb members (1) and the limb member spacers (2) into an integral body.
8. The latticed wooden column for improving fire resistance according to claim 1, characterized in that: The tongue-and-groove wooden board (4) has a groove on one connecting end face of the board and a rib matching and plugging with the groove on the other end face, forming an outer wrapping board without a through gap between adjacent tongue-and-groove wooden boards (4).