CN211250496U - Cold-formed thin-walled steel-coated fast-growing poplar high-strength beam column - Google Patents
Cold-formed thin-walled steel-coated fast-growing poplar high-strength beam column Download PDFInfo
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- CN211250496U CN211250496U CN201922096065.1U CN201922096065U CN211250496U CN 211250496 U CN211250496 U CN 211250496U CN 201922096065 U CN201922096065 U CN 201922096065U CN 211250496 U CN211250496 U CN 211250496U
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- growing poplar
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- 241000219000 Populus Species 0.000 title claims abstract description 34
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 22
- 239000010959 steel Substances 0.000 title claims abstract description 22
- 238000012946 outsourcing Methods 0.000 claims abstract description 8
- 238000003466 welding Methods 0.000 claims abstract description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 230000008092 positive effect Effects 0.000 abstract description 2
- 239000002023 wood Substances 0.000 description 18
- 238000005470 impregnation Methods 0.000 description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 239000000853 adhesive Substances 0.000 description 5
- 230000001070 adhesive effect Effects 0.000 description 5
- 238000010276 construction Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 238000012986 modification Methods 0.000 description 5
- 230000004048 modification Effects 0.000 description 5
- 230000001954 sterilising effect Effects 0.000 description 5
- 238000004659 sterilization and disinfection Methods 0.000 description 5
- 238000013461 design Methods 0.000 description 4
- 229910052757 nitrogen Inorganic materials 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 238000005086 pumping Methods 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 2
- 239000004202 carbamide Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- ZFSLODLOARCGLH-UHFFFAOYSA-N isocyanuric acid Chemical compound OC1=NC(O)=NC(O)=N1 ZFSLODLOARCGLH-UHFFFAOYSA-N 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 229920001131 Pulp (paper) Polymers 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 239000012237 artificial material Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000003306 harvesting Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000032696 parturition Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 239000011122 softwood Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 230000000576 supplementary effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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Abstract
The utility model belongs to fast-growing poplar application apparatus field especially relates to a fast-growing poplar high strength beam column of cold-formed thin-walled steel outsourcing. Including middleware and the fast-growing poplar plank of evenly laying along the middleware periphery, wherein, the middleware includes two crisscross welding messenger middle parts C type cold-formed thin-walled shaped steel that mouthful style of calligraphy structure formed, fast-growing poplar plank includes riser and the diaphragm that sets up along the middleware periphery interval in proper order, the line sets up perpendicularly between riser and the diaphragm, wherein, the thickness of riser is the twice of diaphragm thickness, the width of riser and the length of diaphragm are unanimous. Compared with the prior art, the utility model discloses an advantage lies in with positive effect, the utility model discloses a quick-growing poplar high strength beam column of cold-formed thin-walled steel outsourcing with the effectual cooperation of cold-formed thin-walled steel and quick-growing poplar, forms the beam column that has high strength, high tenacity, and then satisfies the building needs.
Description
Technical Field
The utility model belongs to fast-growing poplar application apparatus field especially relates to a fast-growing poplar high strength beam column of cold-formed thin-walled steel outsourcing.
Background
As an important production resource in social and economic construction, wood and wood materials are widely applied to various fields in daily life, and also widely applied to the industrial fields of traffic, building, aerospace and the like. With the increasing shortage of forest resources worldwide, especially the increasingly sharp decrease of the quantity of precious wood, a large number of fast-growing trees are widely planted in recent years. Fast-growing trees have the advantages of short outcrop time, high yield and the like, but because the growth period is short, for example: generally, the wood forming time of the artificial fast-growing poplar is 5-6 years, so most fast-growing trees have the defects of low density, soft wood, poor physical and mechanical strength, high water content, uneven distribution, easiness in generating dry shrinkage deformation and the like, the application range of fast-growing tree varieties is limited, the artificial fast-growing forest is generally used for producing paper pulp, disposable chopsticks and other low-economic value-added products, and the application in the high-value-added processing field is less.
The timber structure building is a building with an engineering structure taking timber as a main stress system, a beam column structure system is a common bearing system of the existing timber structure building, the beam column structure system is a main force transmission system in the form of a beam and column structure with large span, and the beam column structure system bears vertical load and horizontal load and finally transmits the vertical load and the horizontal load to a foundation. Common wood structures and laminated wood structures in the 'design specifications of wood structures' in China all belong to buildings of beam-column structure systems. Along with the related policies issued by the nation, green building and assembly construction are vigorously carried out, and the problems about wood structure assembly construction are particularly mentioned in documents. But nowadays the development of wood structures is limited by the prohibited harvesting of natural wood. Most of the artificial materials are limited in application range due to poor mechanical properties. The fast-growing poplar has the characteristics of straight texture, easiness in processing, high growth speed, high environmental adaptability and the like, has the advantages of environmental protection, attractiveness and the like, and has a wide planting foundation in China. However, due to the characteristics of low mechanical property, poor corrosion resistance, high instability and the like, the fast-growing poplar wood is not applied to building structures all the time.
SUMMERY OF THE UTILITY MODEL
The utility model discloses to the technical problem that foretell fast-growing poplar can't be applied to building beam column, provide a reasonable in design, simple structure, low cost and can effectively improve fast-growing poplar intensity, make its cold-formed thin-walled steel outsourcing fast-growing poplar high strength beam column that satisfies building beam column needs.
In order to achieve the purpose, the utility model discloses a technical scheme do, the utility model relates to a fast growing poplar high strength beam column of cold-formed thin-walled steel outsourcing, including middleware and the fast growing poplar plank of evenly laying along the middleware periphery, wherein, the middleware includes two crisscross welding messenger middle parts C type cold-formed thin-walled steel that form a mouthful style of calligraphy structure, fast growing poplar plank includes riser and the diaphragm that sets up along the peripheral interval in proper order of middleware, the line sets up perpendicularly between riser and the diaphragm, wherein, perpendicular plate thickness is the twice of diaphragm thickness, the width of riser is unanimous with the length of diaphragm.
Preferably, the riser is 10 mm.
Preferably, the length of the riser is three times the width of the cross plate.
Compared with the prior art, the utility model has the advantages and positive effects that,
1. the utility model discloses a quick poplar high strength beam column of giving birth to of cold-formed thin-walled steel outsourcing with the effectual cooperation of cold-formed thin-walled steel and quick poplar, forms the beam column that has high strength, high tenacity, and then satisfies the building needs.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.
FIG. 1 is a schematic structural view of a cold-formed thin-walled steel-clad fast-growing poplar high-strength beam column provided in example 1;
FIG. 2 is a schematic structural view of an intermediate member provided in embodiment 1;
in the above figures, 1, middleware; 2. a plate material.
Detailed Description
In order to make the above objects, features and advantages of the present invention more clearly understood, the present invention will be further described with reference to the accompanying drawings and examples. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the present invention is not limited to the limitations of the specific embodiments of the present disclosure.
Embodiment 1, as shown in fig. 1 and 2, the embodiment provides a cold-formed thin-walled steel-coated fast-growing poplar high-strength beam column and a construction process thereof
Firstly, selecting materials, considering that the modified fast-growing poplar provided by the embodiment is used in a building, in the implementation, the selection of the materials plays a crucial role in the strength of a finished product in the later period, firstly, selecting logs with straight trunks and 20cm of tree diameters of the fast-growing poplar, placing the logs in a cool place, selecting the logs with straight trunks, mainly considering that the logs with straight trunks are more convenient to process, selecting the logs with 20cm of tree diameters mainly considering the construction requirements of the embodiment, placing the logs in the cool place, and mainly avoiding the cracking of the poplar and influencing the strength due to insolation.
Then, the selected fast-growing poplar is cut into a plate with the thickness of 10mm and a plate with the thickness of 5mm, the plate which does not meet the requirements is removed, the length and the width of the treated plate are the required sizes of the components, in the embodiment, the length of the plate with the thickness of 10mm needs to be 2400mm, the width of the plate with the width of 140mm, the length of the plate with the thickness of 5mm is 140mm, the width of the plate is 80mm, the two sides of the plate with the width of 5mm are arranged in a zigzag mode, if the length and the width of the plate with the thickness of 10mm cannot reach the corresponding sizes, the size of the required plate can be obtained in a bonding mode, and bonding is.
In the laying process, because whole beam column mainly comes from the pressure that the top produced, for this reason, the panel of laying in vertical direction chooses for use 10mm and integrated into one piece, and its length is 2400mm promptly, and 5 mm's main purpose is the intensity of reinforcing 10mm panel exactly, and it plays certain supplementary effect, for this reason, in order to guarantee its atress that can be better, its length is unanimous with 10 mm's width, can guarantee panel in the wholeness of transverse direction like this.
In order to further increase the strength of the plate and remove the moisture of the plate, the treated plate is placed in a shade place to be dried for 3-5 days or is dried for more than 8 hours at the temperature of 65-85 ℃ by a dryer to be subjected to water removal treatment, so that the aim of slowly volatilizing the moisture from the plate is mainly fulfilled, and the cracking of the plate caused by the rapid loss of the moisture is avoided.
In order to further improve the strength of the plate, the dried plate is placed in a pressure steam sterilization cabinet for thermal modification treatment, specifically, a vacuum pump of the pressure steam sterilization cabinet is started, the air in the cabinet is pumped out to enable the pressure to reach about 2.5kpa, saturated steam is input into the pressure steam sterilization cabinet, the pressure of the pressure steam sterilization cabinet reaches more than 200kpa, the temperature reaches 160 ℃, the plate is maintained for 20 minutes, after the vacuum pumping is finished, the pressure reaches 8.0kpa, the plate is rapidly dried, then the pressure of the sterilization cabinet is recovered to zero through filtered clean dry air, the temperature is reduced to below 60 ℃, and the plate can be opened and taken out.
Compared with the traditional thermal modification treatment method of the nitrogen chamber, the method has the advantages that the steam can enter the wood cells of the plate after the vacuum pumping, so that, the permeation is more comprehensive, in this embodiment, the saturated steam is 25% of urea solution steam, and urea can be deaminated and trimerized into the six-membered ring compound cyanuric acid when the temperature reaches 150-160 ℃, the removed ammonia can form nitrogen and permeate into wood cells, thereby realizing the treatment of the traditional nitrogen chamber, compared with the traditional nitrogen chamber treatment, the method has more thorough permeation and better strength, cyanuric acid forms a crystal-like structural design in cells after being cooled, has the function of hygroscopicity, and the wooden building is partly rotten because of its humidity increase, like this, through such setting, reaches the purpose of advanced treatment more, and then its intensity of effectual improvement and life. And the surface of the plate can be quickly dried by continuously vacuumizing, so that the plate is further optimized.
In order to further remove water, in this embodiment, the board after the thermal modification treatment is dried at 105 ℃ for more than 24 hours by using a drying oven, and a water content test is performed to control the water content to be 9-15%, for standby, if the water content of the wood is too high, the later strength is greatly influenced, so the water content of the wood must be controlled well, in this embodiment, the water content is controlled to be 12%, and certainly, the water content may be 9-15%.
The dried board is put into a vacuum impregnation tank, the prepared structural adhesive is added, the vacuum impregnation tank is controlled to be 1MPa, the temperature is controlled to be 75 ℃, the impregnation is carried out for 3h, the temperature is controlled to be 75 ℃ mainly to avoid the solidification of the prepared structural adhesive, the soaking mode is selected, mainly because the fast-growing poplar is a porous capillary material and is a composite capillary system formed by connecting various permanent tubular units (smart capillaries) and instantaneous tubular units (micro capillaries), so that the wood has certain permeability, the vacuum impregnation utilizes the characteristic that a certain amount of structural adhesive is impregnated into the wood through a physical mode, the density, the physical mechanical strength, the heat resistance, the corrosion resistance, the flame retardance and the like of the wood are improved through filling, in the embodiment, the board is firstly put into the vacuum impregnation tank to achieve the purpose of vacuum impregnation, and pumping the vacuum impregnation tank to be-0.2 MPa vacuum by using a vacuum pump, then opening an inlet valve, pressing the structural adhesive into the vacuum impregnation tank by using atmospheric pressure, adjusting the vacuum impregnation tank to be 1MPa after the structural adhesive immerses the plate, controlling the temperature to be 75 ℃, and impregnating for 3 hours.
Considering that when the steel is used as a beam column, the steel is broken from the center to be a common problem when the steel is used as a column, for this reason, in order to increase the center strength and better interact with the plate, in the embodiment, two cold-formed thin-walled C-shaped steel pieces are welded and fixed in a staggered mode, so that the middle of the steel is arranged in a square shape, and the intermediate piece is obtained.
Uniformly laying a layer of 10mm thick plate along the periphery of the intermediate piece, uniformly laying a layer of 5mm thick plate along the periphery of the intermediate piece, wherein the grains of the 5mm thick plate are perpendicular to the grains of the 10mm thick plate, fixing the 5mm thick plate in a splicing mode, and sequentially laying the plates according to the method until the plate completely covers the edge of the intermediate piece, so that the stress and the transverse shearing force between the whole beam columns are reduced.
After the glue of the board is slightly dried, the combined board is pressed by a mould, the temperature is controlled to be 40-50 ℃, curing is carried out, the curing time is 1-2 weeks, the required finished product is obtained, the combined board is pressed by the pressing mould during curing, the curing period is generally 1-2 weeks to reach the design strength, (the curing is carried out for about 2 weeks when the average temperature is about 40 ℃, and the curing is carried out for about 1 week when the average temperature is about 50 ℃), shielding closed curing is carried out during the curing period, and finally, the surface of the finished product is planed.
Through experimental detection, the cold-formed thin-walled steel outsourcing fast-growing poplar high strength beam column produced according to this embodiment satisfies present wooden building's needs.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in other forms, and any person skilled in the art may use the above-mentioned technical contents to change or modify the equivalent embodiment into equivalent changes and apply to other fields, but any simple modification, equivalent change and modification made to the above embodiments according to the technical matters of the present invention will still fall within the protection scope of the technical solution of the present invention.
Claims (3)
1. The utility model provides a fast growing poplar high strength beam column of cold-formed thin-walled steel outsourcing, a serial communication port, including the middleware and along the peripheral fast growing poplar plank of evenly laying of middleware, wherein, the middleware includes two crisscross welding messenger middle parts C type cold-formed thin-walled steel that form a mouthful style of calligraphy structure, fast growing poplar plank includes riser and the diaphragm that sets up along the peripheral interval in proper order of middleware, the line sets up perpendicularly between riser and the diaphragm, wherein, perpendicular plate thickness is the twice of diaphragm thickness, the width of riser is unanimous with the length of diaphragm.
2. The cold-formed thin-walled steel-clad fast-growing poplar high-strength beam column as claimed in claim 1, wherein the riser is 10 mm.
3. The cold-formed thin-walled steel wrapped fast-growing poplar high strength beam column as claimed in claim 2, wherein the length of the riser is three times the width of the cross slab.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922096065.1U CN211250496U (en) | 2019-11-29 | 2019-11-29 | Cold-formed thin-walled steel-coated fast-growing poplar high-strength beam column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922096065.1U CN211250496U (en) | 2019-11-29 | 2019-11-29 | Cold-formed thin-walled steel-coated fast-growing poplar high-strength beam column |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211250496U true CN211250496U (en) | 2020-08-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922096065.1U Expired - Fee Related CN211250496U (en) | 2019-11-29 | 2019-11-29 | Cold-formed thin-walled steel-coated fast-growing poplar high-strength beam column |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211250496U (en) |
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2019
- 2019-11-29 CN CN201922096065.1U patent/CN211250496U/en not_active Expired - Fee Related
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Granted publication date: 20200814 |
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| CF01 | Termination of patent right due to non-payment of annual fee |