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Combined engineering wood

A technology of engineered wood and wood strips, applied in the direction of joists, girders, trusses, etc., can solve the problems of difficult cutting, poor thermal insulation and sound insulation performance, and difficulty in nailing.

Inactive Publication Date: 2016-06-08
CENTRAL SOUTH UNIVERSITY OF FORESTRY AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a high-quality wood-concrete composite member with heavy weight, low elasticity and toughness, poor thermal insulation and sound insulation performance, difficult nailing, and difficult cutting process. Lightweight, high elasticity and toughness, good heat insulation and sound insulation performance, can be nailed, easy to perform various cutting processes and has a large bearing capacity and bending rigidity, high fire resistance performance, and good durability in high-humidity environment. engineered wood

Method used

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Embodiment Construction

[0014] See figure 1 with figure 2 , The present invention is a composite engineering wood, which includes an engineering wood base plate 1 and a cement particle board 2, the cement particle board 2 is placed above the engineering wood base plate 1, the cement particle board 2 and the engineering wood base plate 1 through a shear connection and The glue layer 5 is connected, and the thickness of the cement particle board 2 is 1 / 2-1 / 4 of the thickness of the engineered wood floor 1. among them:

[0015] The engineered wood base plate 1 is composed of engineered glulam, or square wood or plank made of high-quality large-diameter logs, or laminated veneer lumber. For engineering glulam, it is produced in accordance with GB / T50708 "Technical Specifications for Glulam Structures", but the high-grade laminates should be placed underneath and the lower-grade laminates should be placed on top of the blank assembly.

[0016] The shear connector is composed of wood strips 3 and wood screws...

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Abstract

The invention relates to combined engineering wood, which comprises an engineering wood bottom board and a cement shaving board, wherein the cement shaving board is arranged above the engineering wood bottom plate; the cement shaving board and the engineering wood bottom board are connected through a shearing force connecting element and a cementing layer; in addition, the thickness of the cement shaving board is 1 / 2 to 1 / 4 of the thickness of the engineering wood bottom board; the shearing force connecting element consists of battens and wood screws; the battens are arranged on the engineering wood bottom board and are placed in a way of being vertical to the engineering wood bottom plate; screw holes are formed in the battens; the wood screws are screwed and fastened with the battens through the screw holes. The combined engineering wood can be made into a beam type or a plate type according to the cross section shape, and is suitable for being used for wood structure engineering.

Description

Technical field [0001] The invention relates to a combined engineering wood, in particular to an engineering wood beam or engineering wood board formed by combining engineering wood, cement particle board, shear connectors, etc., which is suitable for use in wood structure engineering. Background technique [0002] At present, there are two main types of known engineering wood for load-bearing structures: one is square lumber or board made of large-diameter fine wood species, whose mechanical properties can be predicted and guaranteed through elastic modulus testing. However, its cross-sectional size is limited; the other is glulam made of laminates made of plantation wood according to certain rules. The cross-sectional size and length are not limited, and its mechanical properties are graded and combined by laminates. The method of assembling the blanks is guaranteed, and the laminates can be extended or combined. Generally, the high-grade laminates are placed on the outer layer...

Claims

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Application Information

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IPC IPC(8): E04C2/26E04C3/29
CPCE04C2/26E04C3/29
Inventor 谢力生贺国京周先雁李贤军乔鹭婷
Owner CENTRAL SOUTH UNIVERSITY OF FORESTRY AND TECHNOLOGY
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