CN204418520U - A kind of arcuation bamboo chip strengthens compound bamboo cylinder living beings hollow beam or post - Google Patents

Abstract

The utility model is that a kind of arcuation bamboo chip strengthens compound bamboo cylinder living beings hollow beam or post, and its structure is that B compound bamboo cylinder (4) is positioned at centre, forms concentric circles with the thick compound bamboo cylinder (1) of A; The primary bamboo chip of arcuation (2) is distributed between A compound bamboo cylinder (1) and B compound bamboo cylinder (4), living beings inserts (3) is filled in the gap between A compound bamboo cylinder (1) and B compound bamboo cylinder (4), a kind of composite element of common formation, the thickness of described A compound bamboo cylinder (1) is greater than the thickness of B compound bamboo cylinder (4).Advantage: the feature taking full advantage of biological material, the agricultural-forestry biomass resource that China's reserves are abundant is applied in structural element.The advantages such as this kind of building unit has from heavy and light, rigidity is large, ductility good, automatic recovery ability is strong, economic performance is good, anti-seismic performance is superior, and working procedure is simple, can be applicable to the pressurized in construction applications or flexural member.

Description

A kind of arcuation bamboo chip strengthens compound bamboo cylinder living beings hollow beam or post

Technical field

The utility model relates to a kind of arcuation bamboo chip and strengthen compound bamboo cylinder living beings hollow beam or post, belong to civil engineering technology and material science.

Background technology

China abounds with bamboo, and owning amount and quality all occupy first place in the world, bamboo is renewable, degradable, general 3-5 can be become a useful person, the tensile strength of bamboo wood is about 2 times of timber, compressive strength is about 1.5 times of timber, the specific strength of bamboo wood is higher than common wood, structural steel, aluminium alloys, concrete etc., bamboo wood has good elasticity and toughness, deformability is strong, concrete is replaced with bamboo wood and with the composite material that other materials forms, house built by steel or loam brick etc., meet the significant task---" Green Development that " 12 " planning is disposed, Resources for construction economy type, friendly environment society " fundamental requirement, what also meet that " National Program for Medium-to Long-term Scientific and Technological Development (2006-the year two thousand twenty) " determine is energy-saving and cost-reducing, develop the major fields of agricultural-forestry biomass resource and preferential theme.

Along with the quickening of national Economic Development Mode Conversion process; development low-carbon economy is as the quick propelling of country; to be further severe to the protective policy of wildwood and artificial forest cultivation; the quantity delivered of timber and structural element will be further outstanding to the contradiction between its demand; be that the development space of the structural element of raw material will greatly reduce with timber; and the release of biological material component, provide direction for effectively protecting forest resources.

Arcuation bamboo chip strengthens compound bamboo cylinder living beings beam or post wide market.Along with the high speed development of China's Wood member industry, the under-supply principal element more and more becoming the Wood member development of restriction China of wood raw material.The alternative materials of seeking timber becomes China's Wood member development urgent problem.And application has super quality and competitive price, environmental protection, low stain, the arcuation bamboo chip of the characteristics such as reusable edible strengthens compound bamboo cylinder living beings beam or post replaces wood raw material must have the wide market space.

Summary of the invention

The utility model proposes a kind of arcuation bamboo chip and strengthen compound bamboo cylinder living beings hollow beam or post; its object is intended to be applied in civil construction structure member in conjunction with the characteristic of biological material by the agricultural-forestry biomass resource that China's reserves are abundant; reach saving mineral resources; conserve forests, the object of protection of the environment.

Technical solution of the present utility model: arcuation bamboo chip strengthens compound bamboo cylinder living beings hollow beam or post, its structure is that B compound bamboo cylinder (4) is positioned at centre, concentric circles is formed with the thick compound bamboo cylinder (1) of A, the primary bamboo chip of arcuation (2) is distributed between A compound bamboo cylinder (1) and B compound bamboo cylinder (4), living beings inserts (3) is filled in the gap between A compound bamboo cylinder (1) and B compound bamboo cylinder (4), a kind of composite element of common formation, the thickness of described A compound bamboo cylinder (1) is greater than the thickness of B compound bamboo cylinder (4), the thickness of outer compound bamboo cylinder is not less than 20mm, the thickness of internal layer compound bamboo cylinder is not less than 18mm.

Advantage of the present utility model: selection is extensive, the prices of raw and semifnished materials are cheap, production is convenient, the advantage such as this kind of building unit has from heavy and light, rigidity is large, ductility good, automatic recovery ability is strong, economic performance is good, anti-seismic performance is superior, can be applicable to the pressurized in civil engineering structure field or flexural member, significant to the pressure alleviating the shortages of resources such as China's timber, arable land, coal and the deterioration of the ecological environment.

Accompanying drawing explanation

Accompanying drawing 1 is the structural representation that a kind of arcuation bamboo chip strengthens compound bamboo cylinder living beings hollow beam or post.

In figure 1 is thicker compound bamboo cylinder, 2 are primary bamboo chips of arcuation, 3 are biological materials, 4 is thinner compound bamboo cylinders.

Detailed description of the invention

Contrast accompanying drawing 1, arcuation bamboo chip strengthens compound bamboo cylinder living beings beam or post, its structure is that B compound bamboo cylinder (4) is positioned at centre, concentric circles is formed with the thick compound bamboo cylinder (1) of A, the primary bamboo chip of arcuation (2) is distributed between A compound bamboo cylinder (1) and B compound bamboo cylinder (4), living beings inserts (3) is filled in the gap between A compound bamboo cylinder (1) and B compound bamboo cylinder (4), a kind of composite element of common formation, the thickness of described A compound bamboo cylinder (1) is greater than the thickness of B compound bamboo cylinder (4), the thickness of outer compound bamboo cylinder is not less than 20mm, the thickness of internal layer compound bamboo cylinder is not less than 18mm.

Described living beings inserts (3) comprises straw, straw, cornstalk, sorghum stalk, beans stalk, capsicum stalk, Rape Straw, flax stalk, reed stalk or cotton stalk, also comprises discarded timber and chip thereof.

Its preparation method, comprises the following steps:

The first step, compound bamboo cylinder is made: 1. select the former bamboo that 3-6 is raw by Structural Design Requirement, former bamboo is softened open and flat expansion, the flat glued by bamboo sheet launched (use phenol glue or not containing the ecological glue of formaldehyde) is become wider bamboo clappers, then bamboo clappers is peeled into thinner bamboo fibre lamella; Or the former thick bamboo tube chosen is divided into the former bamboo chip of same widths and length, carry out after going blue or green de-etiolation dewatering or dry (moisture content is no more than 12%), then gluing is carried out (according to phenol glue to it, solid content is about 30%), under proper temperature (about 150 DEG C) and pressure (about 5MPa), be pressed into the bamboo glulam meeting Structural Design Requirement by forcing press, bamboo integration plate material is peeled into thinner bamboo fibre lamella; Or the former thick bamboo tube chosen is divided into the bamboo chip of regular length and width, be that transverse direction does not rupture, longitudinal thin bamboo strips used for weaving loosely after going blue or green de-etiolation after serrated roller rolls, the first moisture content 10% ~ 12% of thin bamboo strips used for weaving; Then the constant-pressure and high-temperature heat treatment box being placed on designed, designed carries out about 190 DEG C high-temperature heat treatment, then impregnations, and thin bamboo strips used for weaving impregnation resin content is 8% (ratio of oven dry weight), and after impregnation, thin bamboo strips used for weaving baking temperature 70 DEG C, is dried to moisture content and is no more than 12%; Thin bamboo strips used for weaving is longitudinally organized full embryo and load mould, hot pressing adopts " heat enter cold go out " technique, pressure 4. 5MPa, temperature 140 DEG C, the bamboo wood recombinant material section bar meeting Architectural Design Requirements is pressed into by forcing press, again bamboo wood recombinant material section bar is made into wider bamboo wood recombinant material sheet material, bamboo wood recombination board is peeled into thinner bamboo fibre lamella; 2. according to the cylindrical inner mold of size Selection that building needs, inner mold is that high molecule nano material makes high voltage bearing inflatable bladders, forms inner mold when producing cylinder to airbag aeration, makes the complete venting of cylinder and just can take out air bag, very convenient; 3. thin bamboo fibre lamella length direction is wound first floor along cylindrical inner mold external diameter, in this layer of rotary-cut thin bamboo plate, bamboo fibre direction is perpendicular to cylindrical inner mold length direction; 4. thin bamboo fibre lamella length direction is wound the second layer along cylindrical inner mold length direction, in the thin bamboo plate of the second layer, bamboo fibre direction is parallel to cylindrical inner mold length direction; 5. make third layer, this layer and each layer backward with the manufacture craft of first floor, until required thickness (thickness is not less than 18mm); Whole compound bamboo cylinder each lamella length of bamboo fibre direction is mutually vertical;

Second step, selects straight former thick bamboo tube, cuts into wider (width is not less than 100mm) longer arcuation bamboo chip, and dry or charing;

3rd step, is fixed on the centre of thicker compound bamboo cylinder by thinner compound bamboo cylinder, form concentric circles with thicker compound bamboo cylinder (1);

4th step, is arranged into arcuation bamboo chip in the space between thicker compound bamboo cylinder and thinner compound bamboo cylinder, and makes arcuation bamboo chip outwardly; The arrangement of arcuation bamboo chip is on the whole as flower;

5th step, after biomass material natural air drying or oven dry (moisture content is no more than 12%), pulverizes through agricultural hay cutter or hammer slice type beating crusher or Special grinder for disintegrating, then mills; Even with glue (phenol glue or larch tannin resin glue) mix, be filled in the space between thicker compound bamboo cylinder and thinner compound bamboo cylinder, and vibration compacting, carry out maintenance;

6th step, maintenance is complete, is cropped neat at two ends, is required circular configuration component.

Compound bamboo cylinder must possess enough tensions, shear strength.Bamboo chip is the primary bamboo chip of arcuation of wider width (width is not less than 100mm); Former bamboo chip all needs drying, can carbonize, and also can not carbonize.

Living beings inserts (3) comprises the leaf, stalk, stem etc. that can relate to all plants, crops, certainly also comprises all wood materials such as discarded timber and chip thereof; The leaf, stalk, stem etc. of all plants, crops can be related to, certainly also comprise all wood materials such as discarded bamboo wood, timber and chip thereof.All these biological materials all need through drying and dewatering process.

Utilize arcuation bamboo chip to strengthen compound bamboo cylinder living beings beam or post construction house, anti-seismic performance is good, low-carbon green environmental protection, sustainable development.At present, the housing construction mainly brick mix structure of China, uses a large amount of clay products, causes China's land resources to fall sharply, the heavy damage ecological homeostasis, national per capita area of cultivated farmland less than 1.3 mu, far below world's level of 4.8 mu per capita.In this case, turn waste into wealth, make constructional materials in conjunction with biological material feature significant.

The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.

Claims (2)

1. an arcuation bamboo chip strengthens compound bamboo cylinder living beings hollow beam or post, it is characterized in that, B compound bamboo cylinder (4) is positioned at centre, concentric circles is formed with A compound bamboo cylinder (1), the primary bamboo chip of arcuation (2) is distributed between A compound bamboo cylinder (1) and B compound bamboo cylinder (4), living beings inserts (3) in gap between A compound bamboo cylinder (1) and B compound bamboo cylinder (4), the thickness of described A compound bamboo cylinder (1) is greater than the thickness of B compound bamboo cylinder (4), the thickness of outer compound bamboo cylinder is not less than 20mm, the thickness of internal layer compound bamboo cylinder is not less than 18mm.

2. arcuation bamboo chip according to claim 1 strengthens compound bamboo cylinder living beings hollow beam or post, it is characterized in that, described living beings inserts (3) comprises straw, straw, cornstalk, sorghum stalk, beans stalk, capsicum stalk, Rape Straw, flax stalk, reed stalk or cotton stalk, also comprises discarded timber and chip thereof.