CN208645617U

CN208645617U - A kind of compound CLT beam of fiber reinforcement bamboo and wood

Info

Publication number: CN208645617U
Application number: CN201820827586.2U
Authority: CN
Inventors: 赵龙龙; 王高远; 邓鑫; 徐蕙玉
Original assignee: Nanjing Forestry University
Current assignee: Nanjing Forestry University
Priority date: 2018-05-30
Filing date: 2018-05-30
Publication date: 2019-03-26
Anticipated expiration: 2028-05-30

Abstract

A kind of compound CLT beam of fiber reinforcement bamboo and wood, including overwood component 1-1, the lower wooden component 1-2 along beam length direction；With the bamboo component 2 of beam length direction quadrature arrangement；And it is distributed in the reinforcing fiber layer 3 of bamboo component and the lower wooden component interlayer.Advantage: it is identical as tradition CLT component that fiber reinforcement bamboo and wood combines CLT beam, with good dimensional stability, fire resistance and heat insulating and sound insulating performance, and may be implemented factory modularization production with it is prefabricated, assemble also convenient and efficient, be the environmentally protective structural elements of one kind.Traditional CLT component of fiber reinforcement bamboo and wood combination CLT Liang Yutong size is compared: shearing strength, anti-bending bearing capacity, ratio of strength to weight etc. increase, and the rate of utilization of strength of component can be improved.

Description

A kind of compound CLT beam of fiber reinforcement bamboo and wood

Technical field

The utility model relates to civil engineering structure field more particularly to a kind of compound CLT beams of fiber reinforcement bamboo and wood.

Background technique

CLT technology increasingly by both at home and abroad it is of interest, traditional CLT Wood member have good dimensional stability, fire resisting Performance and heat insulating and sound insulating performance, CLT can realize modularized production and prefabricated and easy to assembly quick, short time limit in factory, It is a kind of environmentally protective structural elements.But the mechanical performance indexs such as rate of utilization of strength and shearing strength are undesirable.

The fast growing wood (poplar, pine and Eucalyptus etc.) and bamboo timber resource in China are quite abundant, while all kinds of fiber reinforced materials Expect the tensile strength with superelevation.If local timber and bamboo timber resource can be made full use of to produce heavy fiber reinforcement bamboo and wood Compound CLT beam, then product has better mechanical property, simultaneously because resourceful, cost performance may be than external pure wood Matter CLT has more advantage.

Summary of the invention

Goal of the invention: the deficiencies in the prior art are directed to, the purpose of the utility model is to provide a kind of fiber reinforcements The compound CLT beam of bamboo and wood has many advantages, such as that environmental protection grade height, high-strength light, the ratio of strength to weight are high, rate of utilization of strength is high, shearing strength is big.

Technical solution: in order to realize that above-mentioned purpose of utility model, the technical solution adopted in the utility model are as follows: a kind of fibre The dimension enhancing compound CLT beam of bamboo and wood, by 2 layers and with overwood dimension stock and 1 layer and the above bamboo dimension stock perpendicular quadrature assembly, built-in phase Number of plies reinforcing fiber is answered, agent is sticked using epoxy resin structural adhesive and is suppressed.

Component successively replaces assembly by the wooden component and bamboo component, and bamboo component is made of the parallel gluing of bamboo dimension stock, neutral axis The reinforcing fiber of the glued suitable number of plies of the every adjacent members interlayer in lower part, reinforcing fiber layer is with plank be overlapped gluing above and below size.

The utility model has the advantages that a kind of fiber reinforcement bamboo and wood of the utility model combines CLT beam, traditional CLT component had both been remained Principal advantages, and each component construction material advantage that can bring into play: bamboo wood possesses good shear behavior, and bamboo dimension stock is in component The shear behavior of component can be improved in intermediate position；Fiber has the tensile strength of superelevation, is placed in the lower wooden component and bamboo component interlayer The anti-bending bearing capacity of component, the ratio of strength to weight of rate of utilization of strength and component can be improved.

Detailed description of the invention

Fig. 1 is a kind of fiber reinforcement bamboo and wood combination CLT girder construction schematic diagram.

Fig. 2 is a kind of wooden component schematic diagram of fiber reinforcement bamboo and wood combination CLT beam.

Fig. 3 is a kind of bamboo component schematic diagram schematic diagram of fiber reinforcement bamboo and wood combination CLT beam.

Fig. 4 is a kind of reinforcing fiber schematic diagram schematic diagram of fiber reinforcement bamboo and wood combination CLT beam.

Specific embodiment

The utility model is described further combined with specific embodiments below.

As shown in Figure 1, a kind of fiber reinforcement bamboo and wood combines CLT beam, primary structure component part includes along beam length direction Overwood component 1-1, the lower wooden component 1-2；With the bamboo component 2 of beam length direction quadrature arrangement；And it is distributed in bamboo component lower surface With the reinforcing fiber layer 2 of the lower wooden component interlayer.

This fiber reinforcement bamboo and wood combines CLT beam, when production, first by lower wood component 1-1 tiling, after the increasing of same size Strong fibrous layer 3 is placed in above the wooden component 1-2, and it is vertical by the two gluing, then bamboo component 2 to stick agent using epoxy resin structural adhesive Orthogonal assembly tiling sticks agent gluing to 3 upper surface of reinforcing fiber layer, with epoxy resin structural adhesive, and then overwood component 1-1 is put down It is laid on 3 top of bamboo component and sticks agent gluing with epoxy resin structural adhesive, finally suppress component with press.

The bamboo and wood of the utility model, the connection of steel plate gluing, advantage are: a kind of fiber reinforcement bamboo and wood of the utility model The shortcomings that combining CLT beam, overcoming traditional CLT Mechanical Properties of Products aspect, makes full use of the different materials power of each component part The advantages of learning performance, has higher bending bearing capacity and the ratio of strength to weight, improves the shear-carrying capacity of rate of utilization of strength and component.

Claims

1. a kind of compound CLT beam of fiber reinforcement bamboo and wood, it is characterized in that including overwood component (1-1), the lower wooden structure along beam length direction Part (1-2)；With the bamboo component (2) of beam length direction quadrature arrangement；And it is distributed in bamboo component lower surface and the lower wooden component interlayer Reinforcing fiber layer (3).

2. the compound CLT beam of fiber reinforcement bamboo and wood according to claim 1, which is characterized in that the overwood component (1- 1), the lower wooden component (1-2) is to be needed according to scantling and select suitable quantity and the specification timber of size to tile and be composed.

3. the compound CLT beam of fiber reinforcement bamboo and wood according to claim 1, which is characterized in that the bamboo component (2) is root It is needed according to scantling and appropriate number of specification bamboo wood tiling is selected to be composed.

4. the compound CLT beam of fiber reinforcement bamboo and wood according to claim 1, which is characterized in that the reinforcing fiber layer (3) It is to need and select FRP, CFRP etc. of suitable dimension and the number of plies to reinforce fibrous material according to scantling and bearing capacity.

5. the compound CLT beam of fiber reinforcement bamboo and wood according to claim 1, which is characterized in that the lower wooden component (1- 2), glued using epoxy resin between reinforcing fiber layer (3)；The reinforcing fiber layer (3), between bamboo component (2) lower surface It is equally glued using epoxy resin.

6. the compound CLT beam of fiber reinforcement bamboo and wood according to claim 1, which is characterized in that various pieces are used epoxy It pressurizes after resinoid bond, increases component stability.

7. the compound CLT beam of fiber reinforcement bamboo and wood according to claim 1, which is characterized in that can be wanted according to element bearing capacity The wooden component of adjustment, bamboo component and reinforcing fiber is asked to count layer by layer.