CN210086481U - Wood structure beam column bolt node reinforced by shape memory alloy - Google Patents
Wood structure beam column bolt node reinforced by shape memory alloy Download PDFInfo
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- CN210086481U CN210086481U CN201920667283.3U CN201920667283U CN210086481U CN 210086481 U CN210086481 U CN 210086481U CN 201920667283 U CN201920667283 U CN 201920667283U CN 210086481 U CN210086481 U CN 210086481U
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Abstract
The utility model relates to a shape memory alloy reinforced wood structure beam column bolt node, wherein, the wood component is rectangular, and the length direction is the wood grain texture direction; the reinforced part of the first wood member is positioned at the end part, and the reinforced part of the second wood member is positioned at the abdomen part; the reinforced part is: the middle of the wood component in the thickness direction is provided with at least one steel filling plate groove parallel to the length direction, a plurality of bolt holes are pre-drilled in the thickness direction at the corresponding positions of the wood component and the steel filling plate, the steel filling plate is inserted into the steel filling plate groove, and each bolt is inserted into the corresponding bolt hole; pre-drilling a plurality of bar holes in the cross section height direction of the wood member, wherein the positions of the bar holes are not interfered with bolt holes, and each memory alloy bar is inserted into the corresponding bar hole; the first wood member and the second wood member are vertically connected through respective reinforcing parts. The utility model discloses effectively prevent that the regional horizontal line splitting of timber of bolt node from destroying, can show the development that reduces the unrecoverable deformation of the regional horizontal line orientation of node simultaneously, promote the node from restoring to the throne the performance.
Description
Technical Field
The utility model relates to a modern timber structure consolidates and reforms transform, timber structure beam column bolt node especially relates to a timber structure beam column bolt node that shape memory alloy consolidates.
Background
With the vigorous advance of green buildings and fabricated buildings in China, the modern wood structure meets new development opportunities. Such a structural form has many advantages such as comfort and comfort, good earthquake resistance, and high assembling degree, and thus is receiving much attention. The bolt steel filling plate node is one of the common component connection forms in modern wood structures, and has the advantages of attractive appearance, simplicity in manufacturing, convenience in installation and the like.
Under the combined action of bending moment and shearing force, wood cross grain fracture and damage easily occur to the bolt steel filler plate node, and obvious unrecoverable deformation can occur in the wood cross grain direction of the node area. This makes inefficient use of the bending resistance and deformation capacity of such nodes, and also impairs the performance of the component in normal use. The conventional reinforcing effect (such as a self-tapping screw reinforcing method and a carbon fiber cloth bonding reinforcing method) cannot reduce the influence of unrecoverable deformation in the transverse grain direction of the wood, and cannot achieve the self-resetting effect.
What kind of measure restriction timber's band splitting fracture is taken and is destroyed, reduces the regional unrecoverable deformation of timber band direction of node, promotes the self-reset performance of node, compromises the intensity and the anti deformability of timber structure beam column bolt node, is the technical problem that this field awaits a urgent need to solve.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a reinforced (rfd) timber structure beam column bolt node of shape memory alloy effectively prevents that the regional timber stria cleavage of bolt node from destroying, can show the development that reduces the regional timber stria direction of node and can not resume the deformation simultaneously, promotes the node from restoring to the throne the performance.
The utility model adopts the following technical proposal:
a shape memory alloy reinforced wood structure beam column bolt node comprises a first wood member 1 and a second wood member 2, wherein the first wood member and the second wood member are rectangular, and the length direction of the first wood member is a wood grain direction; the reinforced part of the first wood member 1 is positioned at the end part, and the reinforced part of the second wood member 2 is positioned at the abdomen part; the reinforced part is as follows: the middle of the wood component in the thickness direction is provided with at least one steel filling plate groove parallel to the length direction, a plurality of bolt holes are pre-drilled in the thickness direction at the corresponding positions of the wood component and the steel filling plate 3, the steel filling plate 3 is inserted into the steel filling plate groove, and each bolt 4 is inserted into the corresponding bolt hole; pre-drilling a plurality of bar holes in the height direction of the section of the wood member, wherein the positions of the bar holes are not interfered with bolt holes, and each memory alloy bar 5 is inserted into the corresponding bar hole; the first wood member 1 and the second wood member 2 are vertically connected through respective reinforcing parts.
Further, the memory alloy bar 5 on the first wood member 1 and the memory alloy bar 5 on the second wood member 2 are perpendicular to each other.
Further, the memory alloy bars 5 and the bolts 4 are uniformly distributed.
A manufacturing method of a wood structure beam column bolt node reinforced by shape memory alloy comprises the following steps: the first wood member 1 and the second wood member 2 are grooved in the middle of the thickness so as to be embedded into the steel filling plate 3; pre-drilling holes in the thickness direction of the first wood component 1, the second wood component 2 and the embedded steel filling plate 3 so as to insert bolts 4; pre-drilling holes in the cross section height direction of the first wood component 1 and the second wood component 2, penetrating the shape memory alloy bar 5, and fixing by adopting structural adhesive; the embedded steel filler plates 3 are embedded in the grooves of the respective wood members, and bolts 4 are penetrated and fixed.
The beneficial effects of the utility model reside in that:
1) can prevent effectively that the regional horizontal line splitting of timber of bolt node from destroying, can show the development that reduces the unrecoverable deformation of the regional horizontal line direction of timber of node simultaneously, promote the self-restoration performance of node.
2) The reinforced node is simple in structure, convenient to construct and convenient for engineering popularization.
3) The strength and the deformation resistance of the beam-column bolt joint of the wood structure are considered.
4) The beam column bolt node for improving the bending resistance bearing capacity, the deformation capacity, the energy consumption capacity and the self-resetting performance of the existing wood structure is provided: the shape memory alloy has higher tensile strength, and can effectively inhibit the splitting and the damage of the cross grain of the wood under the combined action of bending moment and shearing force. Meanwhile, the shape memory alloy has a good self-resetting function, the non-recoverable deformation of the wood in the cross grain direction can be obviously reduced, and the self-resetting performance of the node is improved. After the shape memory alloy bar is adopted for reinforcement, the bending resistance bearing capacity and the energy consumption capacity of the beam-column bolt joint can be obviously improved.
Drawings
Fig. 1 is a front view of the shape memory alloy reinforced wood beam column bolt joint of the present invention.
Fig. 2 is a top view of the first wood member.
Fig. 3 is a side view of the first wood member.
Fig. 4 is a plan view of the second wood member.
Fig. 5 is a side view of the second wood member.
In the figure, 1, a first wood component, 2, a second wood component, 3, a steel filling plate, 4, a bolt and 5, a shape memory alloy bar are shown.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1-3, a shape memory alloy reinforced wood structure beam-column bolt node comprises a first wood member 1 and a second wood member 2, wherein the first wood member is rectangular, and the length direction of the first wood member is a wood grain direction; the reinforced part of the first wood member 1 is positioned at the end part, and the reinforced part of the second wood member 2 is positioned at the abdomen part; the reinforced part is as follows: the middle of the wood component in the thickness direction is provided with at least one steel filling plate groove parallel to the length direction, a plurality of bolt holes are pre-drilled in the thickness direction at the corresponding positions of the wood component and the steel filling plate 3, the steel filling plate 3 is inserted into the steel filling plate groove, and each bolt 4 is inserted into the corresponding bolt hole; pre-drilling a plurality of bar holes in the height direction of the section of the wood member, wherein the positions of the bar holes are not interfered with bolt holes, and each memory alloy bar 5 is inserted into the corresponding bar hole; the first wood member 1 and the second wood member 2 are vertically connected through respective reinforcing parts.
In this embodiment, referring to fig. 1, the memory alloy rods 5 on the first wood member 1 and the memory alloy rods 5 on the second wood member 2 are perpendicular to each other.
In this embodiment, the memory alloy rods 5 and the bolts 4 are evenly distributed, see fig. 1-5.
A manufacturing method of a wood structure beam column bolt node reinforced by shape memory alloy comprises the following steps: the first wood member 1 and the second wood member 2 are grooved in the middle of the thickness so as to be embedded into the steel filler plate 3, and the width of the grooves is 1mm larger than the thickness of the embedded steel filler plate so as to ensure the smooth assembly of the nodes; pre-drilling holes in the thickness direction of the first wood component 1, the second wood component 2 and the embedded steel filling plate 3 so as to facilitate the penetration of bolts 4, wherein the diameter of the pre-drilled holes is 1mm larger than that of the bolts, so that the smooth installation of the nodes is ensured; pre-drilling holes in the first wood component 1 and the second wood component 2 in the height direction of the cross section, wherein the diameter of the pre-drilled holes is 1mm larger than that of the shape memory alloy bar, penetrating the shape memory alloy bar 5, and fixing by adopting structural adhesive; and embedding the embedded steel filling plates 3 into the grooves of the respective wood members, and penetrating and fixing the bolts 4 to realize connection.
The spacing and the diameter of the shape memory alloy rods can be specifically determined according to the sectional dimensions of the first wood member 1 and the second wood member 2 and the stress condition of the nodes. The quantity of the bars is mainly determined according to the load borne by the nodes and the section size of the member.
The shape memory alloy has higher tensile strength, and can effectively inhibit the splitting and the damage of the cross grain of the wood under the combined action of bending moment and shearing force. Meanwhile, the shape memory alloy has a good self-resetting function, the non-recoverable deformation of the wood in the cross grain direction can be obviously reduced, and the self-resetting performance of the node is improved. After the shape memory alloy bar is adopted for reinforcement, the bending resistance bearing capacity and the energy consumption capacity of the beam-column bolt joint can be obviously improved.
The above are preferred embodiments of the present invention, and those skilled in the art can make various changes or improvements on the above embodiments without departing from the general concept of the present invention, and these changes or improvements should fall within the scope of the present invention.
Claims (3)
1. The utility model provides a wooden structure beam column bolt node that shape memory alloy is consolidated which characterized in that:
the wood member comprises a first wood member (1) and a second wood member (2), wherein the wood members are rectangular, and the length direction of the wood members is the wood grain direction;
the reinforced part of the first wood member (1) is positioned at the end part, and the reinforced part of the second wood member (2) is positioned at the abdomen part;
the reinforced part is as follows: the middle of the wood component in the thickness direction is provided with at least one steel filling plate groove parallel to the length direction, a plurality of bolt holes are pre-drilled in the thickness direction at the corresponding positions of the wood component and the steel filling plate (3), the steel filling plate (3) is inserted into the steel filling plate groove, and each bolt (4) is inserted into the corresponding bolt hole; the wood member is pre-drilled with a plurality of bar holes in the height direction of the section, the positions of the bar holes are not interfered with bolt holes, and the memory alloy bars (5) are inserted into the corresponding bar holes;
the first wood member (1) and the second wood member (2) are vertically connected through respective reinforced parts.
2. A shape memory alloy reinforced wood structural beam column bolt joint as defined in claim 1, wherein: the memory alloy bar (5) on the first wood member (1) is perpendicular to the memory alloy bar (5) on the second wood member (2).
3. A shape memory alloy reinforced wood structural beam column bolt joint as defined in claim 1, wherein: the memory alloy bars (5) and the bolts (4) are uniformly distributed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920667283.3U CN210086481U (en) | 2019-05-10 | 2019-05-10 | Wood structure beam column bolt node reinforced by shape memory alloy |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920667283.3U CN210086481U (en) | 2019-05-10 | 2019-05-10 | Wood structure beam column bolt node reinforced by shape memory alloy |
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| Publication Number | Publication Date |
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| CN210086481U true CN210086481U (en) | 2020-02-18 |
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| CN201920667283.3U Active CN210086481U (en) | 2019-05-10 | 2019-05-10 | Wood structure beam column bolt node reinforced by shape memory alloy |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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2019
- 2019-05-10 CN CN201920667283.3U patent/CN210086481U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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