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Prefabricated floor panel for wooden structure building and its manufacturing method

A production method and floor panel technology, which are applied in the joining of wooden veneers, construction, building components, etc., can solve the problems of poor dimensional stability, low strength of plantation wood, poor material quality, etc., and achieve good dimensional stability and mechanical properties. The effect of excellent performance and high load-bearing capacity

Active Publication Date: 2020-01-10
INST OF WOOD INDUDTRY CHINESE ACAD OF FORESTRY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In order to solve some of the above-mentioned technical problems, the present invention provides a prefabricated floor panel for a wooden structure building and its manufacturing method, which can solve the problems of low strength, poor material, and poor dimensional stability of plantation timber, and is different from other on-site Compared with the processed floor slab, it has the advantages of stable product quality, controllable strength, good dimensional stability, fast and convenient construction, etc., which can better meet the needs of wood structure buildings

Method used

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  • Prefabricated floor panel for wooden structure building and its manufacturing method
  • Prefabricated floor panel for wooden structure building and its manufacturing method
  • Prefabricated floor panel for wooden structure building and its manufacturing method

Examples

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Effect test

Embodiment 1

[0060] The sectional view of the floor panel of this embodiment is as follows: figure 2 shown.

[0061] Domestic larch logs are used as raw materials, sawn and dried in a kiln with a moisture content of 8-12%, and processed into sawn timber with a section width of 89mm and a thickness of 18mm by double-sided or four-sided planers. Using the mechanical stress classification method, the larch sawn timber is classified into low modulus, medium modulus and high modulus sawn timber according to the size of larch elastic modulus.

[0062] Low elastic modulus grade sawn timber: 8GPa~12GPa

[0063] Medium elastic modulus grade sawn timber: 12GPa~16GPa

[0064] High elastic modulus grade sawn timber: greater than 16Gpa

[0065] The side buffer layer 2 is made of flame-retardant polystyrene board with a width of 75 mm, a length of 4 m, and a thickness of 1 cm. The first and second waterproof and breathable membrane layers are both waterproof and breathable molds for wooden structur...

Embodiment 2

[0080] This embodiment (such as image 3 Shown) the difference with embodiment 1 is:

[0081] Larch and poplar are used as raw materials. After sawing, they are placed in a drying kiln with a moisture content of 8-12%. Double-sided planers or four-sided planers are used to process them into sawn timber with a cross-sectional size of 89mm in width and a thickness of 18mm. The larch sawn timber with high elastic modulus and poplar with medium elastic modulus were selected by mechanical stress classification method to prepare the load-bearing wood layer of the floor slab.

[0082] High elastic modulus larch sawn timber: greater than 16GPa

[0083] Middle elastic modulus grade poplar sawn timber: 12GPa~16GPa

[0084] With reference to the method and process of Example 1, prefabricated floor panels for wood structures were prepared. During preparation, the timber sublayers (11, 13, 15) were selected from larch sawn timber with high elastic modulus grades, and the timber sublayers...

Embodiment 3

[0086] This embodiment (such as Figure 4 Shown) the difference with embodiment 1 is:

[0087] Poplar and structural poplar laminated veneer lumber (LVL) are used as raw materials. Poplar logs are sawn and placed in a drying kiln with a moisture content of 8-12%, and processed with double-sided or four-sided planers. Sawn timber with a section size width of 89mm and a thickness of 18mm. Use the mechanical stress classification method to select poplar with medium elastic modulus (12GPa~16GPa) and high elastic modulus (greater than 16GPa) to prepare the load-bearing wood layer of the floor panel, and select poplar veneer with elastic modulus greater than 16GPa to laminate placed on the 1st and 7th floors of the wood load-bearing layer, with a thickness of 16mm, a width of 1.2m as the floor slab width, and a length of 4m, and its grain direction is parallel to the length direction. The cut thickness is 15mm.

[0088] With reference to the method and process of Example 1, the p...

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Abstract

The invention discloses a prefabricated floor plate for wood structure building and a preparation method of the prefabricated floor plate and belongs to the technical field of wood structure buildingfloor plates. The prefabricated floor plate comprises a bearing wood layer, side buffer layers, an upper surface decoration floor layer and a lower surface sound absorbing decoration layer, wherein the bearing wood layer is composed of a plurality of wood sublayers which are distributed in the thickness direction of the prefabricated floor plate, the side buffer layers are fixed to the side facesof the bearing wood layer, the upper surface decoration floor layer is fixed to the upper surface of the bearing wood layer, and the lower surface sound absorbing decoration layer is fixed to the lower surface of the bearing wood layer; each wood sublayer is composed of a plurality of sawn timber or structural composite wood, an angle of -60-60 degrees is formed between the wood sublayers, the wood sublayers are composited through an adhesive, and the bearing capacity of the bearing wood layer can be improved; the side buffer layer is composed of inflaming retarding polystyrene boards or rubber blankets; and the upper decoration layer and the lower sound adsorbing layer are composed of waterproof layers and decoration floors or sound absorbing plates, and the waterproof, decorative and sound absorbing effects are achieved. According to the prefabricated floor plate, the bearing capacity of the floor plate is improved in a manner of compositing the multiple layers of wood, surface decoration treatment is carried out, the construction requirement of assembled wood structures is met, and good practicality is achieved.

Description

technical field [0001] The invention belongs to the technical field of wooden structure building floor panels, in particular to a prefabricated floor panel for wooden structure buildings and a manufacturing method thereof. Background technique [0002] In recent years, with the continuous improvement of social development and people's living standards, people have paid more and more attention to advocating nature, pursuing health, and advocating the concept of environmental protection consumption. Wooden green building materials and wooden structures are also gradually favored by people. The development of green, environmentally friendly, and renewable wood structure buildings is an important measure for my country to achieve the strategic goals of energy conservation, emission reduction, and sustainable social development. [0003] The prefabricated wooden structure building is a new type of wooden structure building in which some or all of the wooden structural parts are p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B21/04B27D1/04B27D1/08E04C2/12B32B7/12B32B37/12
CPCB27D1/04B27D1/08B32B7/12B32B21/04B32B37/12B32B2307/558B32B2307/724B32B2307/73B32B2307/734B32B2607/00E04C2/12E04C2/50
Inventor 龚迎春田昭鹏任海青武国芳
Owner INST OF WOOD INDUDTRY CHINESE ACAD OF FORESTRY