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A zigzag, new technology, applied in the direction of layered products, wood layered products, wooden veneer joints, etc., can solve the problems of easy aging, uneconomical, complex gluing process and design process, etc., to improve the overall The effects of stability, increased firmness, gluing process and simplicity of the design process
Pending Publication Date: 2019-04-09
XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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Problems solved by technology
The first aspect is to study the type of adhesive used for bonding between layers, such as other adhesives such as epoxy resin adhesive or phenolic resin adhesive. Although the stability of the adhesive is good, its harmful substances (such as formaldehyde) ) content is high and uneconomical, and the time is too long, it is also prone to aging phenomenon, making it easy to fall off between layers
In the second aspect, during the gluing process, a special bonding layer is set between the layers. For example, some scholars add one or more layers of FRP betwe
Method used
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Embodiment 1
[0025] Such as figure 1 As shown, a new type of CLT board with zigzag interlayer glued method is a CLT member made of three-layer wood-gauge lumber glued together, including a layer of upper layer 1, a layer of lower layer 3 and a layer of core layer 2 . The core board 2 is made of poplar, a fast-growing wood, and the upper board 1 and the lower board 3 are made of hemlock, and are glued orthogonally with the core board 2 to form a CLT board.
[0026] Among them, such as image 3 As shown, the upper surface of the core board 2 is provided with several convex grooves 1 6 , and the lower surface is provided with several convex grooves 2 5 .
[0027] Such as Figure 5 As shown, the lower surface of the upper laminate 1 is provided with a groove 1 7 that can be matched and fitted with the convex groove 1 6, and the upper surface of the lower laminate 3 is provided with a groove 2 4 that can be matched and fitted with the convex groove 2 5 .
[0028] The concave and convex gro...
Embodiment 2
[0031] Such as figure 2 As shown, a new type of CLT board with zigzag interlayer glued method is a CLT member made of five layers of wood-gauge lumber glued together, including one upper layer 1, one lower layer 3 and three core layers 2 . The core layer board 2 is made of poplar, a fast-growing wood, and the upper layer board 1 and the lower layer board 3 are made of hemlock.
[0032] Among them, such as image 3 As shown, the upper surface of the uppermost core board 2 is provided with several convex grooves 1 6 , and the lower surface of the lowermost core board 2 is provided with several convex grooves 2 5 .
[0033] And the adjacent layer core boards 2 are still combined together with the concave-convex groove structure, the upper and lower surfaces of a certain layer of core boards 2 are convex grooves, and the upper and lower surfaces of the adjacent core boards 2 are grooves, such as Figure 4 As shown, the upper or lower surface of a certain layer of core board 2 ...
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Abstract
The invention provides a novel CLT (Cross-laminated Timber) board adopting a saw-tooth-shaped interlaminar gluing manner. The novel CLT board is composed of a core layer and a surface layer, wherein each of the core layer and the surface layer is provided with a corresponding concave (convex) groove; the CLT board is commonly formed by gluing odd layers of panels; the middle core layer is formed by laminating a panel with the concave (convex) grooves in two faces and core layers which are provided with the concave (convex) grooves in two adjacent faces and are located at two sides; the layersare laminated in sequence according to the panel layers needed by the engineering through the manner until the final surface layer is laminated with the adjacent core layer by adopting the concave (convex) groove at the single side; in a lamination process, the concave grooves and the convex grooves (the convex grooves and the concave grooves) of the adjacent panels are embedded together; and allthe panels are orthogonally glued together by utilizing an epoxy resin structure adhesive. Compared with an existing gluing manner, the novel CLT board has the advantages that the panels of all the layers are arranged in a manner of embedding of the concave and convex grooves and the panels can be more tightly connected and are not easy to peel off, so that the whole performance of the CLT board is improved.
Description
technical field [0001] The invention belongs to the technical field of civil engineering and construction, and relates to building components, in particular to a novel CLT board in a zigzag interlayer glued mode. Background technique [0002] The application and research of CLT panels in building structures has been favored at home and abroad in recent years. The CLT board is formed by orthogonal gluing between adjacent panels, and it has the same dry shrinkage and wet expansion performance in the primary and secondary directions of the material, so its dimensional stability is 12 times that of solid wood and other glued wood. ;Due to the particularity of its tissue embryo, its rolling shear performance is low; compared with the traditional light frame construction, the cross-sectional size of CLT building components is larger, and the surface carbonization forms an insulating protective layer during combustion, which effectively improves its performance in Bearing capacity...
Claims
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Application Information
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