High-strength durable wooden I-shaped beam

An I-beam, durable technology, applied in the direction of joists, girders, trusses, etc., can solve the problems of environmental pollution, destruction, consumption of natural resources and energy, etc., and achieve the effect of convenient support and disassembly, easy cutting, and high rigidity

Inactive Publication Date: 2009-07-22
NANJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At the same time, a large number of traditional building materials such as steel, cement, and clay bricks are used in my country's building structures, which consume a lot of natural resources and energy, and also cause pollution and damage to the environment.

Method used

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  • High-strength durable wooden I-shaped beam
  • High-strength durable wooden I-shaped beam

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Such as figure 1 and figure 2 As shown, a high-strength and durable wooden I-beam includes upper and lower flanges 1 , a middle web 2 and end protective sleeves 3 . The flange 1 and the web 2 are all provided with a flange modified veneer 6 and a web modified veneer 8 on the surface, using low molecular weight water-soluble phenolic resin (PF) or melamine-formaldehyde resin (MF) ) etc. to dip the veneer to achieve waterproof, anti-corrosion, anti-deformation and flame-retardant effects.

[0027] The flange substrate 7 is a fast-growing material LVL such as poplar, and a layer of flange modified veneer 6 in the same direction is arranged every 1 to 3 layers of fast-growing materials LVL such as poplar. The material used for the edge modification treatment veneer 6 is a fast-growing veneer such as poplar (its direction along the grain is consistent with the length direction of the I-beam), and the plate used for the flange 1 can be formed at one time by LVL processing ...

Embodiment 2

[0029] Such as figure 1 and figure 2 As shown, a high-strength and durable wooden I-beam includes upper and lower flanges 1 , a middle web 2 and end protective sleeves 3 . The flange 1 and the web 2 are all provided with a flange modified veneer 6 and a web modified veneer 8 on the surface, using low molecular weight water-soluble phenolic resin (PF) or melamine-formaldehyde resin (MF) ) etc. to dip the veneer to achieve waterproof, anti-corrosion, anti-deformation and flame-retardant effects.

[0030] The flange substrate 7 is a fast-growing material LVL such as poplar, and a layer of flange modified veneer 6 in the same direction is arranged every 1 to 3 layers of fast-growing materials LVL such as poplar. The material used for the edge modification treatment veneer 6 is a fast-growing veneer such as poplar (its direction along the grain is consistent with the length direction of the I-beam), and the plate used for the flange 1 can be formed at one time by LVL processing ...

Embodiment 3

[0032] Such as figure 1 and figure 2 As shown, a high-strength and durable wooden I-beam includes upper and lower flanges 1 , a middle web 2 and end protective sleeves 3 . The flange 1 is provided with a flange modified veneer 6 on the surface; the web 2 is composed of three layers of glulam, the middle web substrate 9 is masson pine glulam, and the web on the surface is modified. The permanent treatment veneer 8 is a masson pine laminated board, using low molecular weight water-soluble phenolic resin (PF) or melamine-formaldehyde resin (MF) to impregnate the veneer, so as to achieve waterproof, anti-corrosion, anti-deformation and Flame retardant and other effects.

[0033]The flange substrate 7 is a fast-growing material LVL such as poplar, and a layer of flange modified veneer 6 in the same direction is arranged every 1 to 3 layers of fast-growing materials LVL such as poplar. The material used for the edge modification treatment veneer 6 is a fast-growing veneer such a...

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Abstract

The invention provides a high-strength durable wood I-typed beam which has the advantages of high rigidity, lightweight, high-strength, convenient assembly and disassembly, easy cutting, high cost performance, high durability, turnover use for an average year, and industrialized production. The high-strength durable wood I-typed beam comprises a flange girth, a web plate and an end protective sleeve. The upper surface, lower surface and the interior of a flange girth substrate in the flange girth are provided with flange girth modified processing single plates. The surface and the interior of a web plate substrate in the web plate are provided with web plate modified processing single plates. The flange girth modified processing single plates and the web plate modified processing single plates are glue soaking processing single plates. The used adhesive selects water soluble phenol resin with low molecular weight or melamine-formaldehyde resin. The high-strength durable wood I-typed beam is mainly used as the supporter in a building moulding board system, and can also be used in the fields such as supporting members of building structure roofs, and the like.

Description

technical field [0001] The invention relates to a wooden I-beam for building construction or building structure, which is mainly (but not exclusively) used in the fields of support in building formwork systems, load-bearing components of building structure floors and roofs, and the like. Background technique [0002] Building formwork is an important tool in the construction of concrete structures. In the current formwork operation process, the commonly used formwork systems include wood formwork, steel formwork and steel frame plywood formwork, etc., which generally have the disadvantages of easy deformation, large amount of engineering, high construction cost, and few turnover times. In the construction process of general concrete structures, the form work accounts for 20% to 30% of the cost of the concrete structure project, takes up 30% to 40% of the workload, and accounts for about 50% of the construction period. Therefore, it is very necessary to seek a new type of bu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04C3/14E04G11/50
Inventor 刘伟庆杨会峰岳孔
Owner NANJING UNIV OF TECH
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