A longitudinally reinforced cross-laminated timber and its manufacturing method

A glulam, longitudinal technology, applied in the direction of manufacturing tools, wood layered products, chemical instruments and methods, etc., can solve the problems that the bearing capacity and bending strength cannot meet the construction requirements of large-span projects, and improve production efficiency , The process is simple, the effect of reducing the quality

Active Publication Date: 2020-02-18
SHANGHAI CONSTRUCTION GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] CLT is isotropic compared to glulam along the grain, and has good mechanical properties and dimensional stability. Since the number of layers along the grain decreases with the same number of layers, the bearing capacity and flexural strength of CLT along the grain with the same number of layers may be It cannot meet the requirements of long-span engineering or the construction requirements of medium and high-rise buildings

Method used

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  • A longitudinally reinforced cross-laminated timber and its manufacturing method
  • A longitudinally reinforced cross-laminated timber and its manufacturing method
  • A longitudinally reinforced cross-laminated timber and its manufacturing method

Examples

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Embodiment 1

[0031] Such as Figure 1 to Figure 4 , a longitudinally reinforced cross-glued wood, comprising sawn timber 20, hollow particleboard 12 and steel bar 11, the steel bar 11 is arranged through the hollow particleboard 12 to form a reinforcing body, and the sawn timber 20 is assembled vertically and transversely to form an orthogonal glue Wood, the reinforcing body is placed in the longitudinal direction of the cross-laminated wood and formed together with the sawn timber 20 to form a longitudinally reinforced cross-laminated wood 30 .

[0032] Specifically, in order to overcome the shortcomings of the existing cross-glued wood technology, the steel bar 11 is glued and implanted into the hole of the hollow particle board 12, and the steel bar 11 is penetrated through the hollow particle board 12 to form a reinforcing body according to the length of the cross-glued wood member , the sawn timber 20 is assembled vertically and horizontally to form cross-glued wood, and then the rein...

Embodiment 2

[0038] Please continue to refer figure 1 and figure 2 , the present embodiment provides a method for manufacturing longitudinally reinforced cross-laminated timber of the present invention, the method of manufacturing comprising the following steps:

[0039] Step S1 gluing: Clean the surface of the steel bar 11, stick the prepared adhesive with a brush, evenly brush the surface of the treated steel bar and wipe it back and forth irregularly several times until the adhesive is applied to the steel bar The peripheral thickness of the surface is 1 mm to 2 mm; at the same time, the sawn timber 20 is planed and the surface is glued, and the glue is applied according to the type of adhesive selected and the glue parameters are determined to form a coating layer.

[0040]Step S2 Combination: insert the steel bar 11 coated with adhesive into the hole of the hollow particle board 12 matching the diameter of the steel bar, and obtain a reinforced body after curing; the length of the s...

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Abstract

The invention discloses a longitudinally-reinforced cross laminated timber and a manufacturing method thereof, belongs to the technical field of construction engineering, and solves the deficiency ofa current cross laminated timber technology, the deficiency is the problem, that is, a large block cross laminated timber structure cannot be punched by a reinforcing steel bar so that the reinforcingsteel bar cannot run through the whole structure to be placed in the material, and slotting has a complicated process and destroys the overall performance of wood. The longitudinally-reinforced crosslaminated timber uses a hollow shaving board as a carrier for bearing the reinforcing steel bar to prepare a reinforcing body, and the reinforcing body and a converted timber are directly subjected to whole forming gluing to prepare the longitudinally-reinforced cross laminated timber. The manufacturing method includes the steps of sizing, combination, assembly and pressing. The longitudinally-reinforced cross laminated timber manufactured by the method provided by the invention has a simple process, is formed by one-time hot pressing, does not need punching or slotting, does not damage integrality of components, can improve the mechanical properties, connection strength and rigidity of the cross laminated timber components, reduces the mass of the cross laminated timber components, savesmaterials, and has better promotion value.

Description

technical field [0001] The invention belongs to the technical field of construction engineering, and in particular relates to a longitudinally reinforced cross-glued wood and a manufacturing method thereof. Background technique [0002] Cross-laminated timber (CLT for short) is a prefabricated solid engineered wood product made of at least 3 layers of solid sawn timber or structural composite lumber (SCL) vertically cross-glued, which can be used to make wooden roofs, floors and walls body and is a suitable replacement for materials such as concrete, masonry and steel. The CLT wood structure system is a new type of wood structure system with CLT floor slabs, wall panels, and roof panels as the main load-bearing components. It has the advantages of high prefabrication rate, fast construction speed, convenient construction, good seismic performance, energy saving and environmental protection, and is suitable for medium and high-rise wood structures. construction, with potenti...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B21/02B32B21/10B32B21/12B32B3/14B32B3/18B32B3/08B32B7/00B32B37/10B27D1/00E04C2/26
CPCB27D1/00B32B3/08B32B3/14B32B3/18B32B7/03B32B21/02B32B21/10B32B21/12B32B37/10B32B2307/718B32B2419/00E04C2/26
Inventor 尹婷婷韩振华宋博骐
Owner SHANGHAI CONSTRUCTION GROUP
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