CN204955040U - Integrated material reinforcing laminwood of bamboo - Google Patents
Integrated material reinforcing laminwood of bamboo Download PDFInfo
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- CN204955040U CN204955040U CN201520486759.5U CN201520486759U CN204955040U CN 204955040 U CN204955040 U CN 204955040U CN 201520486759 U CN201520486759 U CN 201520486759U CN 204955040 U CN204955040 U CN 204955040U
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- glulam
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Abstract
一种竹集成材增强胶合木，由外层板和数层中间层板沿顺纹方向叠层胶合而成。该中间层板为木材，且层板数≥5；该外层板为竹集成材，设置于中间层板的至少一外表面；各层板之间以间苯二酚树脂胶合层或异氰酸酯树脂胶合层或聚氨酯树脂胶合层进行胶合。如此，本胶合木用竹集成材替代现有胶合木中的外层木板，将强度高于人工速生林木材的竹集成材置于胶合木的外表层，发挥主要承载作用，能够达到提高胶合木整体强度的目的，并有利于人工速生林木材等低次木材和资源极丰富的竹材的有效利用。
A bamboo glulam reinforced glulam is formed by laminating and gluing an outer layer board and several middle layer boards along the grain direction. The middle laminate is wood, and the number of laminates is ≥ 5; the outer laminate is bamboo glulam, which is arranged on at least one outer surface of the middle laminate; between the laminates, there is a resorcinol resin glued layer or isocyanate resin glued layer or polyurethane resin glued layer for gluing. In this way, this glulam uses bamboo glulam to replace the outer layer planks in the existing glulam, and the bamboo glulam whose strength is higher than that of the artificial fast-growing forest is placed on the outer layer of the glulam to play a main bearing role and can improve the quality of the glulam. The purpose of overall strength, and is conducive to the effective utilization of low-grade wood such as artificial fast-growing forest wood and extremely rich bamboo resources.
Description
Technical field
The utility model relates to a kind of laminated wood, and be specifically related to that a kind of mesosphere board is plank, lamina rara externa adopts bamboo wood to improve the laminated wood of bending strength, this laminated wood can be used for the beam and column of timber buildings.
Background technology
At present, known structure laminated wood forms along rift grain direction lamination gummed by plywood.According to the situation of each layer plank configuration, peer group can be divided into close laminated wood (the material grade of each layer plank is identical) and different etc. combine laminated wood (adopt the laminate of two or more material grade, the material grade of outer plank is higher than nexine plank); The combination laminated wood such as different can be divided into again and symmetrical differently waits the combination laminated wood laminate of the different brackets (with member section center line for symmetry axis is in a symmetrical arrangement) and asymmetricly different etc. combine laminated wood (laminate of different brackets becomes asymmetric arrangement in member section center line both sides).
Each layer of said structure laminated wood is all use with seeds plank, and thickness is equal, generally between 20mm to 45mm.From the mechanics of materials, for flexural member, its bending strength determines primarily of the intensity of top layer (particularly tension side) material, and therefore, laminated wood adopts different grade to combine more rationally, more can play the effect of each grade material.Adopt the laminated wood that the high-quality tree lumber that density is large, intensity is high, the age of tree is long, diameter is large makes, its excellent in mechanical performance.But this kind of high-quality timber is fewer and feweri, and artificial fast-growing woods timber gets more and more.The artificial fast-growing woods timber age of tree is short, diameter is little, density is low, wood property is crisp, intensity is low, the laminated wood made for raw material with it, is difficult to the mechanical performance index reaching structure laminated wood.
Bamboo wood be first with 4-7 bamboo in age (being mainly mao bamboon) for Raw material processing becomes the rectangular slat bamboo chip of certain specification, again by those rectangular bamboo chips dry, gluing after the process such as anticorrosion, fire prevention, by rift grain at the sheet material of the overlapping assembly of thickness direction, compression set or square bar.For structure bamboo wood, the bamboo chip thickness of employing is 5mm-10mm, and width is 20mm-45mm, usually adopts phenolic resin adhesive to carry out hot forming or adopts the adhesive such as resorcinol resin, isocyanate resin to carry out normal temperature press molding.Because the tensile strength of mao bamboon reaches 185MPa, and through selecting materials and assembly gummed, bamboo wood properties of product are stablized, and its elastic modelling quantity is not less than 12GPa, and the MOR of Grade A is not less than 120MPa, and have waterproof, protection against the tide, the performance such as corrosion-resistant.Now there is not yet report bamboo wood being applied to structure laminated wood.
Utility model content
Technical problem to be solved in the utility model is: for the deficiency that the existing laminated wood intensity made for raw material with artificial fast-growing woods timber is not high, provides a kind of bamboo wood with very high-flexural strength to strengthen laminated wood.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts is: a kind of bamboo wood strengthens laminated wood, formed along rift grain direction lamination gummed by lamina rara externa and several layers of mesosphere board, this mesosphere board is timber, be characterized in, described lamina rara externa is bamboo wood, is arranged at least one outer surface of mesosphere board.
Described lamina rara externa is 2 layers, is arranged at upper outer surface and the outer lower face surface of several layers of mesosphere board respectively.Described lamina rara externa is 1 layer, is arranged at upper outer surface or the outer lower face surface of several layers of mesosphere board.
Laminate number >=5 of described mesosphere board.Described lamina rara externa is identical with the thickness of each mesosphere board, is 20mm-45mm.And there is between described each laminate resorcinol resin glue close layer or Isocyanate resin and close layer or polyurethane resin gummed layer.
Described several layers of mesosphere board adopt equal combination, the combination such as symmetrical different or the asymmetric combination such as different, can spell wide, can spreading.
So, this laminated wood substitutes the outer plank in existing laminated wood with bamboo wood, intensity is positioned over the extexine of laminated wood higher than the bamboo wood of artificial fast-growing woods timber, play main carrying effect, the object improving laminated wood bulk strength can be reached, and be conducive to effective utilization of the low order timber such as artificial fast-growing woods timber and the profuse bamboo wood of resource.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the cross-sectional structure schematic diagram of the utility model one embodiment.
Fig. 3 is the cross-sectional structure schematic diagram of another embodiment of the utility model.
Fig. 4 is the cross-sectional structure schematic diagram of the another embodiment of the utility model.
Detailed description of the invention
See Fig. 1, the utility model is that a kind of bamboo wood strengthens laminated wood, and it is formed along rift grain direction lamination gummed by lamina rara externa 1 and several layers of mesosphere board 2.This lamina rara externa 1 is bamboo wood, is arranged at least one outer surface of mesosphere board 2.This mesosphere board 2 is timber, its laminate number >=5.This lamina rara externa 1 is identical with the thickness of each mesosphere board 2, is 20mm-45mm.
As shown in Figure 2, be an embodiment of the present utility model, this laminated wood by two layers of lamina rara externa 1 and 10 layers of mesosphere board 2 totally 12 layer by layer plate lamination glue together and form.These two layers of lamina rara externas 1 are arranged at upper outer surface and the outer lower face surface of 10 layers of mesosphere board 2 respectively.10 layers of mesosphere board 2 by artificial fast-growing woods China fir sawn timber through grading, spreading forms, symmetrical different grade is adopted to combine assembly, wherein, the materials such as 4 layers, center employing 3, upper 2 layers and lower 2 layers of 4 layers, adjacent center adopt the materials such as 2, and upper 1 layer and lower 1 layer of remaining 2 layers of i.e. outer laminate 1 adopts the material such as 1.
As shown in Figure 3, be another embodiment of the present utility model, this laminated wood by two layers of lamina rara externa 1 and 10 layers of mesosphere board 2 totally 12 layer by layer plate lamination glue together and form.These two layers of lamina rara externas 1 are arranged at upper outer surface and the outer lower face surface of 10 layers of mesosphere board 2 respectively.10 layers of mesosphere board 2 by artificial fast-growing woods China fir sawn timber through grading, spreading forms, adopt and asymmetricly differently wait combination assembly, wherein, upper 1 layer and lower 2 layers of outer laminate 1 adopts the material such as 1, immediately upper 2 layers and lower 2 layers adopt the materials such as 2, and 3 layers, remaining centre adopts the materials such as 3.
As shown in Figure 4, be another embodiment of the present utility model, this laminated wood by one deck lamina rara externa 1 and 11 layers of mesosphere board 2 totally 12 layer by layer plate lamination glue together and form.This layer of lamina rara externa 1 is arranged at the outer lower face surface of 11 layers of mesosphere board 2.11 layers of mesosphere board 2 by artificial fast-growing woods China fir sawn timber through grading, spreading forms, symmetrical different grade is adopted to combine assembly, wherein, the materials such as 3 layers, center employing 3, upper 2 layers and lower 2 layers of 3 layers, adjacent center adopt the materials such as 2, and lower 2 layers of upper 2 layers and the outer laminate 1 in outer portion adopt the material such as 1.
Lamina rara externa in the various embodiments described above adopt press process in advance good or the mao bamboon integrated timber meeting structure bamboo wood performance requirement ordered.This mao bamboon integrated timber adopts 4-7 mao bamboon in age, bamboo chip thickness 5mm-10mm, bamboo chip width is identical with laminate thickness (20mm-45mm), adopts phenolic resin adhesive to carry out hot forming or adopts the adhesive such as resorcinol resin, isocyanate resin to carry out normal temperature press molding.Bamboo chip extensible, usually adopt end face mitered or finger, adjacent joint should stagger.Bamboo chip can carry out the process such as anticorrosion, fire prevention.
Laminated wood of the present utility model according to the requirement manufacture of national standard " laminated structure technical specification " (GB/T50708-2012), and closes layer or Isocyanate resin with resorcinol resin glue between each laminate and closes layer or polyurethane resin gummed layer glues together.
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520486759.5U CN204955040U (en) | 2015-07-08 | 2015-07-08 | Integrated material reinforcing laminwood of bamboo |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520486759.5U CN204955040U (en) | 2015-07-08 | 2015-07-08 | Integrated material reinforcing laminwood of bamboo |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204955040U true CN204955040U (en) | 2016-01-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520486759.5U Expired - Fee Related CN204955040U (en) | 2015-07-08 | 2015-07-08 | Integrated material reinforcing laminwood of bamboo |
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| CN (1) | CN204955040U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108406983A (en) * | 2018-05-30 | 2018-08-17 | 南京林业大学 | A kind of compound CLT beams of fiber reinforcement bamboo and wood（Plate） |
| CN109808011A (en) * | 2019-03-14 | 2019-05-28 | 南京东垚建筑科技研究院有限公司 | A kind of impregnating by pressure fire retardant formula cemented bamboo component and preparation method thereof |
| CN111203950A (en) * | 2019-12-27 | 2020-05-29 | 海南农垦宝联林产有限公司 | Preparation method of modified rubber wood glued beam |
| CN111300578A (en) * | 2020-04-08 | 2020-06-19 | 湘潭市建筑设计院 | Preparation method of side-pressure integrated bamboo-sandwiched fast-growing wood combined column |
| US12529226B2 (en) | 2020-12-18 | 2026-01-20 | The Court Of Edinburgh Napier University | Bamboo construction element |
-
2015
- 2015-07-08 CN CN201520486759.5U patent/CN204955040U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108406983A (en) * | 2018-05-30 | 2018-08-17 | 南京林业大学 | A kind of compound CLT beams of fiber reinforcement bamboo and wood（Plate） |
| CN109808011A (en) * | 2019-03-14 | 2019-05-28 | 南京东垚建筑科技研究院有限公司 | A kind of impregnating by pressure fire retardant formula cemented bamboo component and preparation method thereof |
| CN111203950A (en) * | 2019-12-27 | 2020-05-29 | 海南农垦宝联林产有限公司 | Preparation method of modified rubber wood glued beam |
| CN111300578A (en) * | 2020-04-08 | 2020-06-19 | 湘潭市建筑设计院 | Preparation method of side-pressure integrated bamboo-sandwiched fast-growing wood combined column |
| US12529226B2 (en) | 2020-12-18 | 2026-01-20 | The Court Of Edinburgh Napier University | Bamboo construction element |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160113 Termination date: 20170708 |