CN113047508B - Orthogonal laminated wood support with shape memory alloy rod and hollow screw rod connected - Google Patents
Orthogonal laminated wood support with shape memory alloy rod and hollow screw rod connected Download PDFInfo
- Publication number
- CN113047508B CN113047508B CN202110373045.3A CN202110373045A CN113047508B CN 113047508 B CN113047508 B CN 113047508B CN 202110373045 A CN202110373045 A CN 202110373045A CN 113047508 B CN113047508 B CN 113047508B
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- memory alloy
- shape memory
- hollow screw
- wood support
- laminated wood
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- 229910001285 shape-memory alloy Inorganic materials 0.000 title claims abstract description 64
- 239000002023 wood Substances 0.000 title claims abstract description 60
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 50
- 239000010959 steel Substances 0.000 claims abstract description 50
- 238000005452 bending Methods 0.000 claims abstract description 7
- 238000004026 adhesive bonding Methods 0.000 claims description 5
- 238000009826 distribution Methods 0.000 claims description 4
- 238000005516 engineering process Methods 0.000 claims description 4
- 238000005265 energy consumption Methods 0.000 abstract description 5
- 238000010276 construction Methods 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 abstract description 3
- 230000007547 defect Effects 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000011120 plywood Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C1/00—Building elements of block or other shape for the construction of parts of buildings
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
- E04B1/98—Protection against other undesired influences or dangers against vibrations or shocks; against mechanical destruction, e.g. by air-raids
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Rod-Shaped Construction Members (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
The orthogonal laminated wood support comprises an orthogonal laminated wood support body, wherein the end part of the orthogonal laminated wood support body is grooved, a high-strength steel filling plate is placed in the groove, holes are formed in the surface of the high-strength steel filling plate, the shape memory alloy rod and the hollow screw are arranged on the holes respectively, and steel sleeves are arranged on the outer sides of the shape memory alloy rod and the hollow screw respectively. The invention realizes the energy consumption of the wood support through the bending deformation of the shape memory alloy rod and the hollow screw rod, reduces or basically eliminates the unrecoverable deformation of the wood support through the super-elastic characteristic of the shape memory alloy rod, and has the characteristics of low maintenance cost and simple construction.
Description
Technical Field
The invention relates to the technical field of wood structures, in particular to an orthogonal laminated wood support with a shape memory alloy rod and a hollow screw rod connected.
Background
With the great promotion and development of green and environment-friendly building products and assembly type buildings, the heavy-duty laminated wood structure is gradually applied to large-scale public buildings. The heavy laminated wood structure is a beam column frame system connected by adopting bolt steel filling plate nodes, and has the advantages of flexible structural arrangement and convenient construction. However, the rigidity of the structure is not easy to meet the design requirement, the side displacement of the structure is larger under the action of earthquake load, the damage of beam column connection nodes is caused, the structural repair difficulty is high, and the cost is high. For such problems, it is common in engineering designs to employ wood supports to increase structural rigidity.
The wood support is generally glued in the same direction by the specification materials, and the wood support and the structural main body still adopt the connection mode of the bolt steel filling plate, so that the performance of the wood support depends on the performance of the connection node and the pulling and pressing performance of the support. However, such wood braces are prone to plastic deformation or brittle fracture damage at the screw holes, the bending deformation of the bolts is not obvious, or tension or buckling damage occurs due to the defect of the local wood of the brace, and the brace energy consumption capability is insufficient. In addition, the wood support has residual deformation after plastic deformation of the screw holes, and the working performance after earthquake is affected, so that the whole support needs to be replaced after local damage or overall damage. The maintainability of the wood support is low and the economical efficiency is poor.
In summary, how to improve the working performance and maintainability of the wood support and achieve better economic effects is a technical problem that needs to be solved by those skilled in the art at present.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention aims to provide the orthogonal veneer support with the shape memory alloy rod and the hollow screw rod connected, the energy consumption of the wood support is realized through the bending deformation of the shape memory alloy rod and the hollow screw rod, the non-restorable deformation of the wood support is reduced or basically eliminated through the super-elastic characteristic of the shape memory alloy rod, and the orthogonal veneer support has the characteristics of low maintenance cost and simple construction.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
the orthogonal laminated wood support comprises an orthogonal laminated wood support, wherein the vertical centers of two ends of the orthogonal laminated wood support are provided with horizontal grooves, high-strength steel filling plates are filled in the horizontal grooves, vertical holes are formed in the surfaces of the high-strength steel filling plates, a part of the vertical holes are provided with the shape memory alloy rods, the other part of the vertical holes are provided with the hollow screws, and steel sleeves are arranged outside the shape memory alloy rods and the hollow screws.
The orthogonal glued wood support is manufactured by adopting an orthogonal gluing technology.
The diameter of the shape memory alloy rods is the same as the outer diameter of the hollow screw rods, and the number of the shape memory alloy rods is not less than that of the hollow screw rods.
The shape memory alloy rods and the hollow screw rod are arranged at intervals.
The number of the steel sleeves is equal to the sum of the number of the shape memory alloy rods and the number of the hollow screws, the inner diameter of each steel sleeve can be 0.5-1 mm larger than the diameter of each shape memory alloy rod, and the outer diameter of each steel sleeve can be twice the diameter of each shape memory alloy rod.
The thickness of the high-strength steel filling plate can be determined according to the bending resistance bearing capacity of the shape memory alloy rod, and the length of the high-strength steel filling plate can be determined according to the arrangement and distribution of the shape memory alloy rod and the hollow screw rod. The determination is based on the same general bolting calculation method.
The width of the horizontal groove is 1-2 mm greater than the thickness of the high-strength steel filling plate, holes are drilled at the supporting end parts of the high-strength steel filling plate and the orthogonal laminated wood, and the drilling diameter can be 1mm greater than the outer diameter of the steel sleeve.
The invention has the beneficial effects that:
through the orthogonal gluing technology, the stress performance of the whole wood support around the screw holes of the node connection area is improved. The stress of the wood around the screw hole is further reduced and is in a basic elastic stress state by the pressure of the steel sleeve diffusion shape memory alloy rod or the hollow screw. The shape memory alloy rod and the hollow screw rod are combined for use, so that node connection cost is reduced, energy consumption of the wood support is realized through bending deformation of the shape memory alloy rod and the hollow screw rod, and unrecoverable deformation of the wood support is reduced or basically eliminated through superelastic characteristics of the shape memory alloy rod. The hollow screw rod is replaceable after earthquake, so that the maintenance time cost is reduced, and the maintainability is high.
Drawings
FIG. 1 is a schematic view of the structure of an orthorhombic laminated wood support with shape memory alloy rods and hollow screw rods connected according to an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a metal member connection according to an embodiment of the present invention.
Fig. 3 is a schematic structural view of a high-strength steel filler plate according to an embodiment of the present invention.
FIG. 4 is a schematic view of a steel sleeve and shape memory alloy according to an embodiment of the present invention.
Fig. 5 is a schematic view of the structure of a steel sleeve and a hollow screw according to an embodiment of the present invention.
In the figure: 1-orthorhombic veneer support, 2-high-strength steel filling plates, 3-steel sleeves, 4-shape memory alloy rods and 5-hollow screws.
Detailed Description
The present invention will be described in further detail with reference to examples.
As shown in fig. 1-4: an orthogonal wood veneer support for shape memory alloy rod and hollow screw connection comprising: the composite material comprises an orthogonal laminated wood support 1, a high-strength steel filling plate 2, a steel sleeve 3, a shape memory alloy rod 4 and a hollow screw 5.
The orthogonal laminated wood support 1 with the shape memory alloy rod 4 and the hollow screw 5 connected is implemented by the following steps: the whole length of the orthogonal glued wood support 1 is manufactured by adopting an orthogonal gluing technology, and the wood support is an energy consumption component, so that the wood support is ensured to be damaged before a wood frame beam in an earthquake, and the main body frame is further protected. The cross-sectional width of the orthogonal plywood support 1 is therefore not necessarily greater than the cross-sectional width of the wood frame beam.
When the orthogonal laminated wood support for connecting the shape memory alloy rod 4 and the hollow screw 5 is implemented: the diameter 4 of the shape memory alloy rods is the same as the outer diameter of the hollow screw 5, and the number of the shape memory alloy rods 4 is not less than the number of the hollow screw 5. (the memory alloy rods 4 and the hollow screw rods 5 are arranged at intervals, the two are equal when the sum is even, and the memory alloy rods 4 are one more when the sum is odd)
The orthogonal laminated wood support 1 with the shape memory alloy rod 4 and the hollow screw 5 connected is implemented by the following steps: the number of the steel sleeves 3 is equal to the sum of the number of the shape memory alloy rods 4 and the number of the hollow screws 5. The extrusion force generated between the steel sleeve 3 and the memory alloy rod 4 or the hollow screw 5 caused by manufacturing and construction errors is prevented, the inner diameter of the steel sleeve 3 can be 0.5-1 mm larger than the diameter of the shape memory alloy rod 4, and the outer diameter can be twice as large as the diameter of the shape memory alloy rod 4.
The orthogonal laminated wood support 1 with the shape memory alloy rod 4 and the hollow screw 5 connected is implemented by the following steps: the thickness 2 of the high-strength steel filling plate can be determined according to the bending resistance bearing capacity of the shape memory alloy rod 4, and the length can be determined according to the arrangement and distribution of the shape memory alloy rod 4 and the hollow screw 5.
The orthogonal laminated wood support 1 with the shape memory alloy rod 4 and the hollow screw 5 connected is implemented by the following steps: for inserting the high-strength steel filling plate 2, the end part of the orthogonal laminated wood support 1 is grooved, and the width and the length of the groove are respectively larger than the thickness of the high-strength steel filling plate 2 by 1-2 mm. For inserting the shape memory alloy rod 4 and the hollow screw 5, holes are drilled in the high-strength steel filling plate 2 and the supporting end according to the arrangement and distribution of the shape memory alloy rod 4 and the hollow screw 5, and the diameter of the drilled holes can be larger than the outer diameter of the steel sleeve 3 by 1mm.
Example 1
As shown in fig. 1, the orthogonal laminated wood support for connecting the shape memory alloy rod and the hollow screw rod comprises an orthogonal laminated wood support 1, a high-strength steel filling plate 2, a steel sleeve 3, a shape memory alloy rod 4 and a hollow screw rod 5. The orthogonal laminated wood support 1 is manufactured by adopting a 5-layer orthogonal gluing mode, the cross section size is 200mm multiplied by 200mm, the grooving depth of two ends is 280mm, and the width is 12mm; the number of the end holes of the orthogonal laminated wood support 1 is 9, and the aperture is 21mm. The thickness of the high-strength steel filling plate 2 is 10mm, the number of drilling holes is 9, and the aperture is 11mm. The steel sleeve 3 has a length of 94mm, an outer diameter of 20mm and an inner diameter of 11mm. The number of the shape memory alloy rods is greater than that of the hollow screws, the number of the shape memory alloy rods 4 is 5, the length is 200mm, and the diameter is 10mm; the number of the hollow screws 5 is 4, the length is 200mm, the outer diameter is 10mm, and the inner diameter is 7mm.
The above components are all prepared in a factory and assembled on site: the high-strength steel filling plate 2 is inserted into the slot of the orthogonal laminated wood support 1, and the shape memory alloy rod 4 and the hollow screw 5 are connected with the orthogonal laminated wood support 1 and the high-strength steel filling plate 2 and sleeved into the steel sleeve 3. After the assembly is completed, the gap between the steel sleeve 2 and the orthogonal laminated wood support 1 is filled with structural adhesive.
Claims (4)
1. The orthogonal laminated wood support is characterized by comprising an orthogonal laminated wood support (1), wherein horizontal grooves are formed in the centers of the two ends of the orthogonal laminated wood support (1) in the vertical direction, high-strength steel filling plates (2) are filled in the horizontal grooves, vertical holes are formed in the surfaces of the high-strength steel filling plates (2), a part of the vertical holes are internally provided with a shape memory alloy rod (4), the other part of the vertical holes are internally provided with hollow screws (5), and steel sleeves (3) are respectively arranged outside the shape memory alloy rod (4) and the hollow screws (5);
the whole length of the orthogonal laminated wood support (1) is manufactured by adopting an orthogonal gluing technology;
the diameter of the shape memory alloy rods (4) is the same as the outer diameter of the hollow screw rods (5), and the number of the shape memory alloy rods (4) is not less than the number of the hollow screw rods (5);
the shape memory alloy rods (4) are arranged at intervals with the hollow screw rods (5).
2. An orthogonal wood veneer support for shape memory alloy rod and hollow screw connection according to claim 1, characterized in that the number of steel sleeves (3) is equal to the sum of the number of shape memory alloy rods (4) and hollow screws (5), the inner diameter of the steel sleeves (3) is 0.5-1 mm larger than the diameter of the shape memory alloy rods (4), and the outer diameter is twice the diameter of the shape memory alloy rods (4).
3. An orthogonal laminated wood support for connecting a shape memory alloy rod and a hollow screw according to claim 1, wherein the thickness of the high-strength steel filling plate (2) is determined according to the bending bearing capacity of the shape memory alloy rod (4), and the length of the high-strength steel filling plate can be determined according to the arrangement and distribution of the shape memory alloy rod (4) and the hollow screw (5).
4. The orthorhombic laminated wood support for connecting a shape memory alloy rod and a hollow screw according to claim 1, wherein the width of the horizontal groove is 1-2 mm larger than the thickness of the high-strength steel filling plate (2), and holes are drilled at the ends of the high-strength steel filling plate (2) and the orthorhombic laminated wood support, and the diameter of the drilled holes is 1mm larger than the outer diameter of the steel sleeve (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110373045.3A CN113047508B (en) | 2021-04-07 | 2021-04-07 | Orthogonal laminated wood support with shape memory alloy rod and hollow screw rod connected |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110373045.3A CN113047508B (en) | 2021-04-07 | 2021-04-07 | Orthogonal laminated wood support with shape memory alloy rod and hollow screw rod connected |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113047508A CN113047508A (en) | 2021-06-29 |
| CN113047508B true CN113047508B (en) | 2024-04-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110373045.3A Active CN113047508B (en) | 2021-04-07 | 2021-04-07 | Orthogonal laminated wood support with shape memory alloy rod and hollow screw rod connected |
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| Country | Link |
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| CN (1) | CN113047508B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006016769A (en) * | 2004-06-30 | 2006-01-19 | Takenaka Komuten Co Ltd | Wood member connecting method and wood member joint structure |
| CN102251588A (en) * | 2011-05-18 | 2011-11-23 | 何敏娟 | Bolted steel filling plate-sleeve connection node for beam-post wood structure |
| CN109989481A (en) * | 2019-05-10 | 2019-07-09 | 上海市建筑科学研究院 | The timber structure beam column bolt joint and preparation method thereof that marmem is reinforced |
| CN110130495A (en) * | 2019-05-23 | 2019-08-16 | 南京林业大学 | A kind of bamboo-wood structure beam column energy consumption connection method |
| CN110230360A (en) * | 2019-07-12 | 2019-09-13 | 上海市建筑科学研究院 | A kind of timber structure buckling restrained brace and production method |
| CN110607850A (en) * | 2019-09-02 | 2019-12-24 | 上海市建筑科学研究院 | Quadrature laminated wood buckling restrained brace |
| CN110984382A (en) * | 2019-11-28 | 2020-04-10 | 南京林业大学 | Self-reset node of wood structure and connection method thereof |
| CN111749336A (en) * | 2020-07-01 | 2020-10-09 | 西安建筑科技大学 | Beam column friction energy consumption node for laminated wood structure |
-
2021
- 2021-04-07 CN CN202110373045.3A patent/CN113047508B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006016769A (en) * | 2004-06-30 | 2006-01-19 | Takenaka Komuten Co Ltd | Wood member connecting method and wood member joint structure |
| CN102251588A (en) * | 2011-05-18 | 2011-11-23 | 何敏娟 | Bolted steel filling plate-sleeve connection node for beam-post wood structure |
| CN109989481A (en) * | 2019-05-10 | 2019-07-09 | 上海市建筑科学研究院 | The timber structure beam column bolt joint and preparation method thereof that marmem is reinforced |
| CN110130495A (en) * | 2019-05-23 | 2019-08-16 | 南京林业大学 | A kind of bamboo-wood structure beam column energy consumption connection method |
| CN110230360A (en) * | 2019-07-12 | 2019-09-13 | 上海市建筑科学研究院 | A kind of timber structure buckling restrained brace and production method |
| CN110607850A (en) * | 2019-09-02 | 2019-12-24 | 上海市建筑科学研究院 | Quadrature laminated wood buckling restrained brace |
| CN110984382A (en) * | 2019-11-28 | 2020-04-10 | 南京林业大学 | Self-reset node of wood structure and connection method thereof |
| CN111749336A (en) * | 2020-07-01 | 2020-10-09 | 西安建筑科技大学 | Beam column friction energy consumption node for laminated wood structure |
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| CN113047508A (en) | 2021-06-29 |
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