CN112223476A - Radial log splitting and staggering combination form capable of being used as beam column - Google Patents
Radial log splitting and staggering combination form capable of being used as beam column Download PDFInfo
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- CN112223476A CN112223476A CN202011226867.0A CN202011226867A CN112223476A CN 112223476 A CN112223476 A CN 112223476A CN 202011226867 A CN202011226867 A CN 202011226867A CN 112223476 A CN112223476 A CN 112223476A
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- 239000002023 wood Substances 0.000 claims abstract description 44
- 238000005520 cutting process Methods 0.000 claims abstract description 29
- 238000000034 method Methods 0.000 claims abstract description 19
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 18
- 239000010959 steel Substances 0.000 claims abstract description 18
- 239000002131 composite material Substances 0.000 claims description 16
- 238000004026 adhesive bonding Methods 0.000 claims description 15
- 239000003292 glue Substances 0.000 claims description 10
- 238000000354 decomposition reaction Methods 0.000 claims description 9
- 239000010410 layer Substances 0.000 claims description 9
- 238000004519 manufacturing process Methods 0.000 claims description 7
- 210000001161 mammalian embryo Anatomy 0.000 claims description 3
- 239000002905 metal composite material Substances 0.000 claims description 3
- 238000003801 milling Methods 0.000 claims description 3
- 230000001154 acute effect Effects 0.000 claims description 2
- 238000013329 compounding Methods 0.000 claims 3
- 238000003825 pressing Methods 0.000 claims 2
- 239000012790 adhesive layer Substances 0.000 claims 1
- 150000001875 compounds Chemical class 0.000 claims 1
- 230000000452 restraining effect Effects 0.000 claims 1
- 239000013043 chemical agent Substances 0.000 abstract 1
- 239000003795 chemical substances by application Substances 0.000 abstract 1
- 239000000853 adhesive Substances 0.000 description 17
- 230000001070 adhesive effect Effects 0.000 description 17
- 239000000463 material Substances 0.000 description 16
- 230000008569 process Effects 0.000 description 7
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 5
- 238000005452 bending Methods 0.000 description 5
- 239000005011 phenolic resin Substances 0.000 description 5
- 229920001568 phenolic resin Polymers 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000007731 hot pressing Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 239000004566 building material Substances 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000007385 chemical modification Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 239000011229 interlayer Substances 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 238000005215 recombination Methods 0.000 description 2
- 230000006798 recombination Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 230000008961 swelling Effects 0.000 description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 241001330002 Bambuseae Species 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- GZCGUPFRVQAUEE-SLPGGIOYSA-N aldehydo-D-glucose Chemical class OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C=O GZCGUPFRVQAUEE-SLPGGIOYSA-N 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 239000003431 cross linking reagent Substances 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- 239000011664 nicotinic acid Substances 0.000 description 1
- 239000011120 plywood Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000012855 volatile organic compound Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27M—WORKING OF WOOD NOT PROVIDED FOR IN SUBCLASSES B27B - B27L; MANUFACTURE OF SPECIFIC WOODEN ARTICLES
- B27M3/00—Manufacture or reconditioning of specific semi-finished or finished articles
- B27M3/0013—Manufacture or reconditioning of specific semi-finished or finished articles of composite or compound articles
- B27M3/0086—Manufacture or reconditioning of specific semi-finished or finished articles of composite or compound articles characterised by connecting using glue
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27D—WORKING VENEER OR PLYWOOD
- B27D1/00—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring
- B27D1/04—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring to produce plywood or articles made therefrom; Plywood sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27D—WORKING VENEER OR PLYWOOD
- B27D1/00—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring
- B27D1/10—Butting blanks of veneer; Joining same along edges; Preparatory processing of edges, e.g. cutting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27M—WORKING OF WOOD NOT PROVIDED FOR IN SUBCLASSES B27B - B27L; MANUFACTURE OF SPECIFIC WOODEN ARTICLES
- B27M3/00—Manufacture or reconditioning of specific semi-finished or finished articles
- B27M3/0013—Manufacture or reconditioning of specific semi-finished or finished articles of composite or compound articles
- B27M3/0073—Manufacture or reconditioning of specific semi-finished or finished articles of composite or compound articles characterised by nailing, stapling or screwing connections
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C3/12—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of wood, e.g. with reinforcements, with tensioning members
- E04C3/122—Laminated
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C3/29—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces built-up from parts of different material, i.e. composite structures
- E04C3/292—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces built-up from parts of different material, i.e. composite structures the materials being wood and metal
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Architecture (AREA)
- Forests & Forestry (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Rod-Shaped Construction Members (AREA)
Abstract
The invention discloses a beam column blank assembling method for log sawn timber. The log is rotationally cut and regular, then sawed radially for a plurality of times, and is dried after being segmented according to a certain length, and finally glued or added with steel plates for staggered combination. The staggered type radial-cutting combined beam provided by the embodiment of the invention has the advantages that the original mechanical property of wood and the stability of a triangle in the structure are kept, so that the log is combined to obtain higher mechanical strength so as to meet the mechanical requirements of beams and columns. The reliability of the combined beam column is improved by the low-shrinkage wet expansion characteristic of the radial cutting mode. By keeping the original physical structure of the wood, the dependence of the stability of the mechanical property agent on chemical agents is reduced.
Description
Technical Field
The invention belongs to the technical field of civil engineering, and particularly relates to a staggered radial log splitting combination beam blank assembling method.
Background
In the construction industry, the use of green and environment-friendly building materials is an effective means for building ecological buildings.
China is a large country with plywood, the total yield accounts for more than 60% of the world, and the original recombination concept means that the original biological structure of a wood material is reserved, and the wood material is not bonded and recombined after being damaged. The simple sawing mode retains the original beautiful chordwise texture and can endow the beam-column building system with higher aesthetic value.
The original state recombination concept is firstly applied to bamboo mechanical components, and the significance lies in retaining the biological original state of a wood material and utilizing the original physical properties of the wood material. In the staggered radial-cutting combined beam, the physical properties of the reserved logs can be regarded as counteracting the mechanical properties provided by a part of adhesive, so that the adhesive application amount is reduced, and the release amount of VOCs is reduced. Along with the higher demand of people for health after epidemic situations, the wooden products tend to have the original green and pollution-free characteristics.
The wood radial cutting can obviously reduce the dry shrinkage and wet expansion defects of the wood in the chord direction, and the problem of dry shrinkage and wet expansion exists when the log is used as a building material. Chemical modification in China is limited, and thermally modified wood is mainly dried in a conventional drying stage, so that the method is a high-pollution and high-carbon emission industry. And because the radial deformation of the log is obviously lower than the chord deformation, the radial sawing can improve the dry shrinkage and wet swelling defects of the log to the maximum extent, reduce the requirements on drying and reduce the carbon emission. Similarly, the radial log can reduce the deformation phenomenon in the use process and improve the reliability of log mechanical components.
The triangular stability structure can make the staggered type radial-cutting combination beam more reliable. The triangle is the most stable plane structure, and the combined beam system is formed by combining the radial-cutting materials with the triangular sections in a staggered manner, so that the instability phenomena such as side turning and the like can be effectively reduced.
Disclosure of Invention
The invention aims to reduce the environmental pollution and energy consumption of the life cycle of the existing composite beam, and the mechanical property of the composite beam is not reduced as much as possible on the basis. Therefore, the invention provides the staggered type radial-cutting combination beam which is high in mechanical property, attractive in texture and small in glue application amount.
The staggered type radial-cutting combination beam comprises radial-splitting logs and log interlayers. The interlayer comprises a log adhesive film-forming layer or a metal composite layer.
According to the staggered type radial-cutting combined beam disclosed by the embodiment of the invention, the dry shrinkage and wet expansion characteristics of the log are improved by adopting the radial-cutting materials, so that the log is quicker and more convenient in the production processes of drying modification and the like, and the energy consumption is reduced; the original wood biological structure of the log is maintained, and the log has certain bionic mechanical characteristics, so that part of the adhesive can be offset to provide mechanical property, and the adhesive application amount can be reduced. The triangular structure effectively prevents instability phenomena such as side turning and the like.
According to the staggered type radial cutting combined beam, the diameter of the wood after rotary cutting is D, the D is determined according to the specific log diameter grade, the radial solution angle is 15 degrees, other angles can be adopted, the lengths of the group of blanks are different, the milling fingers are staggered, and the specific situation is determined by the specific situation of the batch of wood.
According to a further embodiment of the invention, radial dissolving wood may be combined in longitudinal and transverse directions. The transverse combination form has certain similarity with the LVL, but the glue application amount is obviously reduced, the stability of the beam is improved due to the triangular stability structure, and the rotary cut surface is more attractive. Compared with the transverse combination mode, the longitudinal combination mode has stronger mechanical strength, and the weak shearing resistance of the wood is compensated by the original structure.
According to an embodiment of the invention, the staggered radial-cutting composite beam comprises the following structural adhesive: the adhesive is prepared from common adhesives such as phenolic resin adhesives, modified urea-formaldehyde resin adhesives and the like according to the construction process of the adhesives.
According to a further embodiment of the present invention, the radial log combination mode can be designed into a corresponding steel-wood combination form: clamping the thin steel plates and gaps of the staggered radial splitting logs to form a continuous bending steel frame, and then applying an adhesive between the steel and the wood; or fasteners such as bolts and the like are added on two sides to prevent the frame from being scattered; or both.
Additional aspects and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic diagram of the main flow of the embryo organizing method of the present invention.
Figure 2 is a schematic cross-sectional view of a further embodiment of the invention (transverse gluing).
Fig. 3 is a force diagram of a further embodiment of the invention (transverse gluing).
Figure 4 is a schematic cross-sectional view of a further embodiment of the invention (longitudinal gluing).
Figure 5 is a force diagram of a further embodiment of the invention (longitudinal gluing).
Fig. 6 is a schematic cross-sectional view of a further embodiment of the invention (longitudinal steel wood).
Fig. 7 is a schematic diagram of the stress of a further embodiment (longitudinal steel and wood) of the invention.
Fig. 8 shows an eccentric diameter-resolved combination of beam/column with profiled section according to the present invention.
Fig. 9 shows a non-uniform diameter combined beam/column combination of the invention.
Reference numerals:
is free of
Detailed Description
The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "oblique," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing and simplifying the description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting.
The staggered radial-cut composite beam is described below with reference to the drawings of the specification.
The embryo grouping method according to the embodiment of the present invention, as shown in fig. 1, includes: turning and cutting logs, diameter splitting logs, milling fingers of the diameter splitting logs and combining the diameter splitting logs.
The combination modes are shown in figures 2, 4, 6, 8 and 9.
As shown in figure 2, the radial decomposition logs are transversely staggered, glue is applied to the radial section, and glue layers are marked in gray. The embodiment only considers a specific angle, and the combination layer number and the radial solution angle are related to the actual engineering requirement.
As shown in fig. 4, the radial unburnt wood is longitudinally staggered, and the standard square beam is not cut in the embodiment, but in the actual use process, the radial unburnt wood can be longitudinally cut and regulated according to the requirement of uniform specification, and can also be horizontally turned for use according to the requirement.
As shown in fig. 6, this embodiment replaces the glue layer with a thin steel plate on the basis of fig. 6 and applies constraints on both sides, in the form of metal fastener constraints. In the steel-wood combination, the elasticity and the internal stress of the wood can keep the continuous bending form of the steel, and the wood can be subjected to inflation treatment if needed. The shape of the steel is similar to that of a corrugated structure, so that the steel can greatly improve the shearing resistance and provide certain bending resistance. If necessary, sizing treatment can be carried out between the steel and the wood, so that slippage between the steel and the wood can be effectively reduced, and the bending resistance is improved.
As shown in fig. 8, this embodiment provides a solution to the problem of wood eccentricity and a combination of solutions to the problem of wood eccentricity. The embodiment can manufacture the L-shaped column by eccentric diameter material decomposition, and can be used for wall corners; or some special section beams can be combined to form corresponding I-shaped beams, and the limitation of the log radius on the size of the member is broken through.
As shown in fig. 9, in this embodiment, the number of cutters can be reduced in the radial solution process, the bending angle can be freely determined in the construction process, and the special-shaped column structure with any angle can be manufactured.
The combination mode shown in fig. 8 and 9 can be combined by the steel-wood combination mode shown in fig. 6.
Example 1
A transverse staggered radial debonding glued beam comprising: as shown in fig. 2, includes: 15-degree-diameter log decomposition and phenolic resin adhesive.
The method for manufacturing the transverse staggered radial splitting glued beam in the embodiment 1 includes the following steps:
step S1: cutting the log in a rotary manner and then cutting the log in a radial manner according to a required angle;
step S2: gluing the radial cut surface of the radial cut material;
step S3: and (5) longitudinal hot-pressing and gluing.
Step S4 (may be omitted): the chord direction is regular, and the texture is exposed.
Example 2
A longitudinally staggered radial debonding glued beam comprising: as shown in fig. 4, includes: 15-degree-diameter log decomposition and phenolic resin adhesive.
The method for manufacturing the longitudinally staggered radial splitting glued beam in the embodiment 2 includes the following steps:
step S1: cutting the log in a rotary manner and then cutting the log in a radial manner according to a required angle;
step S2: gluing the radial cut surface of the radial cut material;
step S3: and (6) transverse hot-pressing and gluing.
Step S4 (may be omitted): the chord direction is regular, and the texture is exposed.
Example 3
A longitudinal staggered radial-splitting steel-wood composite beam comprises: as shown in fig. 6, includes: 3mm thin steel plate, 15-degree diameter log, steel-wood crosslinking modifier and adhesive thereof. The method is a general steel-wood combination method in the staggered combination mode. In the actual production process, the thin steel plate can be cut off for simplifying the process.
The method for reinforcing the longitudinal staggered radial-splitting steel-wood composite beam in the embodiment 3 comprises the following steps:
step S1: cutting the log in a rotary manner and then cutting the log in a radial manner according to a required angle;
step S2: applying a cross-linking agent to the radial section of the radial-cut material and gluing;
step S3: the steel plate is bonded and bent at an acute angle, so that a small amount of wood pith can be damaged.
Step S4: and S2 and S3 are alternately carried out until the required width of the wood beam is reached.
Step S5: and (5) regulating and cutting the texture string.
Example 4
A special-shaped staggered radial-solution composite beam, as shown in fig. 8, comprising: 20-degree eccentric diameter log decomposition and phenolic resin adhesive.
Step S1: cutting logs in a rotary mode and then cutting the logs in a radial mode according to a certain angle of the eccentric point;
step S2: gluing the radial cut surface of the radial cut material;
step S3: hot pressing and gluing at a certain angle;
step S4 (may be omitted): the chord direction is regular, and the texture is exposed.
Wherein the same orientation may not be radiused.
Example 5
A special-shaped staggered radial-solution composite beam, as shown in fig. 9, comprising: 15-degree-diameter log decomposition, 30-degree-diameter log decomposition and phenolic resin adhesive.
Step S1: cutting the log at a certain angle, and cutting the log at a certain angle, as shown in figure 9;
step S2: gluing the radial cut surface of the radial cut material;
step S3: hot pressing and gluing at a certain angle;
step S4 (may be omitted): the chord direction is regular, and the texture is exposed.
Wherein the same orientation may not be radiused.
The staggered type radial-cutting combined beam has a novel structure and has the advantages of at least the following points:
(1) the defects of dry shrinkage and wet swelling of the log are overcome.
(2) The texture of the manufactured structural beam is natural and attractive.
(3) The sawing process is simple and easy to implement.
(4) The prepared member has high stability.
(5) Can effectively reduce the pollution generated by chemical modification and thermal modification of the component.
(6) The combination embodiment is changeable, and can adapt to various beam column demand conditions.
(7) Can be combined to be used as a base material of a composite component made of various materials, and has good composite modification conditions and prospects.
The embodiments of the present invention are not limited to the above-listed embodiments, but may include embodiments formed by various combinations of the foregoing technical solutions, which fall within the scope of the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted" and "connected" are to be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; either mechanically or electrically. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the description herein, references to the description of the terms "embodiment," "example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (6)
1. An alternating radiused composite beam comprising:
in the structural unit of the beam formed by combining the radial unburnt wood, the radial unburnt wood is in a mutually staggered combination mode;
the glue layer composite structure is characterized in that the glue applying position of the glue layer composite structure is positioned on the radial tangent plane of the radial untwisted log;
the metal composite structure is characterized in that the steel-wood structure and the steel plates are continuously or discontinuously inserted between the radial decomposition logs;
the glue layer is connected with the metal composite structure, the steel-wood structure and the steel-wood are glued, and a fastener can be added for connection.
2. The staggered type radius-cutting combination beam as claimed in claim 1, wherein the radial splitting log central acute angle a should be less than 30 °, and the isosceles triangle height H of the radial splitting log during embryo grouping depends on the log radius R, and H is not less than Rcos1/2 a.
3. The method for manufacturing the group blank of the staggered type radial cutting combination beam is characterized by comprising the following steps of:
step S1: rotary cutting the wood sections with similar diameters to a uniform specification;
step S2: splitting the log according to a certain angle;
step S3: milling the wood into fingers;
step S4: in various forms and in various directions.
4. A method of manufacture according to claims 1-3, or there is a further compound combination:
longitudinal combination: combining the radial directions of the radial splitting logs parallel to the pressing direction;
transverse combination: combining the radial direction of the radial splitting logs perpendicular to the pressing direction;
compounding the glue layer: gluing and gluing the cut surface of the radial splitting log, wherein the member has the composite mechanical property of wood and an adhesive layer;
steel and wood compounding: adding thin steel plates between the radial decomposition logs, and restraining by using fasteners, wherein the components have the mechanical property of steel-wood composite;
the two are jointly adopted in a composite form;
linear friction compounding: the radial splitting logs are combined by linear friction.
5. The combination possibility that the eccentric diameter is used for disassembling the combined beam to generate the beam column with the special-shaped section is not excluded.
6. Non-uniform radial solution forms during the radial solution are not excluded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011226867.0A CN112223476A (en) | 2020-11-05 | 2020-11-05 | Radial log splitting and staggering combination form capable of being used as beam column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011226867.0A CN112223476A (en) | 2020-11-05 | 2020-11-05 | Radial log splitting and staggering combination form capable of being used as beam column |
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|---|---|
| CN112223476A true CN112223476A (en) | 2021-01-15 |
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| CN202011226867.0A Pending CN112223476A (en) | 2020-11-05 | 2020-11-05 | Radial log splitting and staggering combination form capable of being used as beam column |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE641101C (en) * | 1937-01-20 | Hans Brochenberger | Process for the production of composite boards with exclusively standing annual rings, especially for plywood middle layers | |
| US3961654A (en) * | 1973-02-20 | 1976-06-08 | Earl Dean Hasenwinkle | Log cutting and rejoining process |
| WO1989004747A1 (en) * | 1987-11-27 | 1989-06-01 | Andrew Karl Knorr | Method of sawing timber and timber products formed thereby |
| CN1181302A (en) * | 1997-12-01 | 1998-05-13 | 张传顺 | Method for prodn. of quarter-sawed material |
| CN1804332A (en) * | 2006-01-18 | 2006-07-19 | 黑龙江省林产工业研究所 | Structural beam and post made of small-diameter profiled larch veneer |
| WO2017072687A1 (en) * | 2015-10-28 | 2017-05-04 | Stora Enso Oyj | Engineered wood products and methods of their manufacture |
| US20170226738A1 (en) * | 2014-08-08 | 2017-08-10 | Stora Enso Oyj | A gluelam structural member and a method of producing such a gluelam structural member |
| CN107735233A (en) * | 2015-06-18 | 2018-02-23 | 斯道拉恩索公司 | The method for producing the woodwork of stacking, and the woodwork of stacking |
| CN108797889A (en) * | 2018-08-30 | 2018-11-13 | 河北建筑工程学院 | A kind of steel and wood composite girder construction and its construction method |
-
2020
- 2020-11-05 CN CN202011226867.0A patent/CN112223476A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE641101C (en) * | 1937-01-20 | Hans Brochenberger | Process for the production of composite boards with exclusively standing annual rings, especially for plywood middle layers | |
| US3961654A (en) * | 1973-02-20 | 1976-06-08 | Earl Dean Hasenwinkle | Log cutting and rejoining process |
| WO1989004747A1 (en) * | 1987-11-27 | 1989-06-01 | Andrew Karl Knorr | Method of sawing timber and timber products formed thereby |
| CN1181302A (en) * | 1997-12-01 | 1998-05-13 | 张传顺 | Method for prodn. of quarter-sawed material |
| CN1804332A (en) * | 2006-01-18 | 2006-07-19 | 黑龙江省林产工业研究所 | Structural beam and post made of small-diameter profiled larch veneer |
| US20170226738A1 (en) * | 2014-08-08 | 2017-08-10 | Stora Enso Oyj | A gluelam structural member and a method of producing such a gluelam structural member |
| CN107735233A (en) * | 2015-06-18 | 2018-02-23 | 斯道拉恩索公司 | The method for producing the woodwork of stacking, and the woodwork of stacking |
| WO2017072687A1 (en) * | 2015-10-28 | 2017-05-04 | Stora Enso Oyj | Engineered wood products and methods of their manufacture |
| CN108797889A (en) * | 2018-08-30 | 2018-11-13 | 河北建筑工程学院 | A kind of steel and wood composite girder construction and its construction method |
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