A timber column base connection node

Abstract

The utility model discloses a kind of wood column foot connecting nodes;Including wood column, steel structure support and the preformed plate buried in concrete foundation, steel structure support is located on preformed plate, notched is set up in wood column, steel structure support includes support body and first connecting piece, first connecting piece is set on support body, wood column is located on support body and first connecting piece is inserted in notched, the first connecting piece is locked with wood column by screw rod, the periphery of support body is covered with concrete protective layer.The utility model is simple in structure, convenient to construct, wood column is connected on concrete foundation by steel structure support, first connecting piece on support body is inserted in the notched of wood column, wood column is slotted and steel structure support can be prefabricated in advance before construction, improve on-site construction efficiency, and steel structure support cost is low, can reduce construction cost, support body outside is provided with concrete protective layer, can improve the corrosion and moisture-proof performance of wood column and steel structure support.

Description

Technical Field

[0001] This utility model relates to the field of building structure technology, and in particular to a wooden column base connection node. Background Technology

[0002] Timber, as a renewable resource, has the advantages of being lightweight and easy to manufacture, and it has certain applications in the roof structures of large-span buildings. Timber columns are a commonly used structural element in the construction industry, and they are generally installed vertically to bear the loads applied from above.

[0003] Because wooden structures are prone to rotting due to moisture, traditional wooden columns are typically supported by base stones during construction. The base stones reduce the contact between the wooden column and the ground. However, base stones are large, heavy, and difficult to transport, making the installation of wooden columns using base stones time-consuming, labor-intensive, and costly, thus increasing construction costs. Therefore, there is an urgent need for a new type of wooden column base connection joint to solve these problems. Utility Model Content

[0004] To address the aforementioned problems, this utility model provides a wooden column base connection node, including a wooden column, a steel structure support, and an embedded plate embedded in a concrete foundation. The steel structure support is disposed on the embedded plate, and a slot is formed in the wooden column. The steel structure support includes a support body and a first connector. The first connector is disposed on the support body, and the wooden column is disposed on the support body with the first connector inserted into the slot. The first connector and the wooden column are locked together by a screw, and the support body is covered with a concrete protective layer.

[0005] Furthermore, the support body includes a support plate and a second connecting member. The surface of the support plate is parallel to the horizontal plane. The second connecting member is disposed on the lower surface of the support plate, and the first connecting member is disposed on the upper surface of the support plate. The second connecting member is connected to the embedded plate.

[0006] Furthermore, the first connector, the second connector, and the tray are an integral structure.

[0007] Furthermore, the support body also includes a sleeve, which is connected to the lower plate surface of the support plate. The second connecting member is located inside the sleeve, the bottom of the sleeve is in contact with the embedded plate, and the concrete protective layer is laid on the outside of the sleeve.

[0008] Furthermore, the cross-sectional area of ​​the pallet is not greater than the cross-sectional area of ​​the wooden post.

[0009] Furthermore, the surface of the wooden pillar is coated with an anti-corrosion layer.

[0010] Furthermore, at least the lower end of the wooden post is provided with the anti-corrosion layer, and the height of the anti-corrosion layer is not less than the height of the first connector.

[0011] Furthermore, the first connecting member is a steel plate, the surface of which is parallel to the vertical direction, and the axial direction of each screw is perpendicular to the surface of the steel plate.

[0012] Furthermore, the number of steel plates is two, and the two steel plates are arranged parallel to each other and spaced apart.

[0013] Furthermore, the height of the support body is not less than 200 mm.

[0014] By adopting the above technical solution, this utility model has the following beneficial effects compared with the prior art:

[0015] 1) The wooden column foot connection node provided by this utility model has a simple structure and is easy to construct. The wooden column is connected to the concrete foundation through a steel structure support. The first connector on the support body is inserted into the groove of the wooden column. The wooden column groove and the steel structure support can be prefabricated before construction, which improves the efficiency of on-site construction. Moreover, the steel structure support has low cost, which can reduce construction costs. The outer side of the support body is provided with a concrete protective layer, which can improve the anti-corrosion and moisture-proof performance of the wooden column and the steel structure support.

[0016] 2) The wooden column base connection node provided by this utility model has a steel plate inserted into the groove of the wooden column, and the steel plate and the wooden column are connected by a screw to form a semi-rigid connection. The wooden column can rotate slightly in the direction perpendicular to the axial direction of the screw, but cannot rotate in the direction of the axial direction of the screw due to the constraint of the steel plate. This releases the bending moment on one side of the wooden column, helps to release the internal stress of the structure, reduces the impact of disasters such as earthquakes on the building, and improves the overall flexibility of the connection node. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 A structural schematic diagram of the wooden column base connection node provided by this utility model;

[0019] Figure 2 A cross-sectional view (AA) of the wooden column base connection node provided by this utility model;

[0020] Figure 3BB cross-sectional view of the wooden column base connection node provided by this utility model;

[0021] Figure 4 A partial structural schematic diagram of the wooden column foot connection node provided by this utility model.

[0022] 1-Wooden column; 2-Steel structure support; 21-First connector; 22-Plate; 23-Second connector; 24-Sleeve; 3-Concrete foundation; 31-Embedded plate; 4-Concrete protective layer; 5-Threaded rod; 51-Nut. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model. In the accompanying drawings, the dimensions and relative dimensions of certain parts may be enlarged for clarity.

[0024] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connection" and "connected" should be interpreted broadly. For example, they can be fixed connections, detachable connections, or integral connections; they can be mechanical connections or electrical connections; they can be direct connections or indirect connections through an intermediate medium; they can be internal connections between two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0025] In the description of this utility model, the terms "upper", "lower", "left", "right", "front", "back", "center", "horizontal", "vertical", "top", "bottom", "inner", and "outer" are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] Furthermore, in the description of this utility model, the terms "first" and "second" are used merely for descriptive distinction and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Additionally, features defined with "first" and "second" may explicitly or implicitly include one or more of that feature.

[0027] As per the instruction manual Figure 1-3 As shown, Figure 1 This is a schematic diagram of the connection nodes for the wooden column bases. Figure 2 for Figure 1 AA section view, Figure 3 for Figure 1 BB sectional view. This utility model provides a wooden column base connection node, including a wooden column 1, a steel structure support 2, and a pre-embedded plate 31 embedded in a concrete foundation 3. The steel structure support 2 is disposed on the pre-embedded plate 31. A groove is opened in the wooden column 1. The steel structure support includes a support body and a first connector 21. The first connector 21 is disposed on the support body. The wooden column 1 is disposed on the support body and the first connector 21 is inserted into the groove. The first connector 21 and the wooden column 1 are locked together by a screw 5. The support body is covered with a concrete protective layer 4.

[0028] Specifically, the concrete foundation 3 is the ground, and the wooden column 1 is installed on the concrete foundation 3 through the steel structure support 2. The wooden column 1 can be raised by the steel structure support 2, which can play a certain role in anti-corrosion and moisture-proof. The steel structure support 2 can be prefabricated in advance. Its structure is simple and its weight is lighter than that of the column base stone, making transportation and installation more convenient. The grooves on the wooden column 1 can also be prefabricated in advance, reducing on-site construction time and improving on-site construction efficiency.

[0029] The cross-section of the wooden column 1 is circular or square. Taking a square wooden column as an example, the width of the groove is smaller than the width of the wooden column 1. The opening of the groove is located on the bottom surface of the wooden column 1. The groove is opened corresponding to the first connector 21 on the support body. The first connector 21 is inserted into the groove. The wooden column 1 is pressed onto the support body by its own weight or the load above. The first connector 21 can restrict the wooden column 1 from moving in the horizontal direction, thereby fixing the wooden column 1.

[0030] Specifically, an embedded plate 31 is embedded in the concrete foundation 3. The cross-section of the embedded plate 31 is larger than that of the wooden column 1. The embedded plate 31 is further anchored to the concrete foundation 3 by anchor rods. The embedded plate 31 is preferably made of steel plate. The support body is connected to the embedded plate 31 by bolts or welding.

[0031] In an optimized implementation, the support body includes a support plate 22 and a second connecting member 23. The surface of the support plate 22 is parallel to the horizontal plane. The second connecting member 23 is disposed on the lower surface of the support plate 22, and the first connecting member 21 is disposed on the upper surface of the support plate 22. The second connecting member 23 is connected to the embedded plate 31. The wooden column 1 is set perpendicular to the ground. The surface of the support plate 22 is parallel to the horizontal plane. The wooden column 1 is vertically disposed on the support plate 22. The first connecting member 21 and the second connecting member 23 are respectively disposed on the upper and lower surfaces of the support plate 22. The first connecting member 21 is connected to the wooden column 1, and the second connecting member 23 is connected to the embedded plate 31, thereby fixing the wooden column 1 to the concrete foundation 3.

[0032] In an optimized implementation, the first connecting member 21, the second connecting member 23, and the support plate 22 are an integral structure. The first connecting member 21, the second connecting member 23, and the support plate 22 are steel components, possessing advantages of high strength and lightweight. The first connecting member 21 and the second connecting member 23 are welded to the support plate, and all three can be prefabricated in a factory. Firstly, both the grooving and the cutting of the wooden column 1 can be prefabricated in the factory, resulting in good consistency of prefabricated products, improving the quality of the steel structure support 2 and the accuracy of the connection with the wooden column 1. Secondly, after factory prefabrication, they can be directly transported to the site, reducing on-site construction difficulty, shortening on-site construction time, and improving on-site construction efficiency. The first connecting member 21 is perpendicular to the support plate 22, and the second connecting member 23 is perpendicular to the support plate 22.

[0033] Specifically, the installation process of the wooden column 1 is as follows: the first connector 21, the second connector 23, and the support plate 22 are welded in the factory and transported to the site. Then, the second connector 23 is welded onto the embedded plate 31. The wooden column 1 is hoisted so that the first connector 21 is inserted into the groove of the wooden column. Finally, concrete is poured between the support plate 22 and the embedded plate 31 to obtain the concrete protective layer 4. The wooden column 1 can be raised through the support body to meet the moisture-proof requirements of the wooden column 1. The concrete protective layer 4 covers the second connector 23 and the support plate 22, which can prevent corrosion of the steel components and extend the durability of the joint.

[0034] The surfaces of the first connector 21, the second connector 23, and the support plate 22 are all coated with an anti-corrosion layer, which can improve corrosion resistance and enhance the durability of the steel structure support.

[0035] Preferably, the second connector 23 is a plurality of steel plates or a plurality of support columns, used to support the wooden column 1 between the embedded plate 31 and the support plate 22. (See attached instruction manual) Figure 4 As shown, the second connector 23 includes multiple steel plates, some of which are designated as first support plates and some as second support plates. The surface of the first support plate is parallel to the surface of the steel plate of the first connector 21. The number of first support plates is the same as the number of first connectors and they are arranged in a one-to-one correspondence. The second support plate is perpendicular to the surface of the first support plate and is connected to each of the first support plates.

[0036] There are two ways to pour the concrete protective layer 4. One specific implementation involves pouring concrete between the support plate 22 and the embedded plate 31 to fill the gap between them. The second connector 23 is embedded in the concrete, resulting in the concrete protective layer 4. This method is suitable when the gap within the second connector 23 is large, facilitating concrete pouring, and allowing the concrete to fill the gap between the support plate 22 and the embedded plate 31. Another specific implementation involves setting a sleeve 24 on the outside of the second connector 23. The sleeve 24 is connected to the lower surface of the support plate 22, with the second connector 23 located inside the sleeve 24. The bottom of the sleeve 24 is in contact with the embedded plate 31, and the concrete protective layer 4 is positioned on the outside of the sleeve 24. Concrete is poured between the support plate 22 and the embedded plate 31, outside the sleeve 24, to obtain the concrete protective layer 4. This method is suitable when the gap within the second connector 23 is small, making concrete pouring inconvenient. While meeting strength requirements, it can improve concrete pouring efficiency.

[0037] Preferably, the sleeve 24 is a thin steel plate sleeve.

[0038] As one specific embodiment, the cross-sectional area of ​​the support plate 22 is the same as the cross-sectional area of ​​the wooden column 1, and the size of the concrete protective layer 4 is the same as the size of the support plate 22. This avoids the concrete protective layer 4 protruding vertically from the wooden column 1, which would affect the aesthetics.

[0039] As one specific implementation, the cross-sectional area of ​​the support plate 22 is equal to the cross-sectional area of ​​the wooden column, and the concrete protective layer 4 covers the outside of the support plate and protrudes from the wooden column 1. This protects the support body while ensuring its strength.

[0040] In some embodiments, the height of the concrete protective layer is higher than the upper surface of the pallet, the concrete protective layer surrounds the wooden post and forms a gap between the concrete protective layer and the wooden post, and wood wax oil is injected into the gap, which can further play a role in the anti-corrosion effect of the wooden post.

[0041] Preferably, a wood-look sticker can be pasted on the surface of the concrete protective layer 4 to improve the overall aesthetics of the wood column 1.

[0042] The optimized implementation also includes a plurality of screws 5, each screw 5 passing through the wooden post 1 and the first connecting member 21, and each screw 5 having a nut 51 connected to both ends. To improve the connection strength, the first connecting member 21 is fixed to the wooden post 1 by the screws 5, and both ends of the screws 5 are locked by the nuts 51.

[0043] In an optimized implementation, the first connecting member 21 is a steel plate, the surface of which is parallel to the vertical direction, and the axial direction of each screw 5 is perpendicular to the surface of the steel plate. Corresponding through holes are provided on the steel plate and the wooden column 1, through which the screw 5 passes, and both ends are locked with nuts 51 to fix the wooden column 1 to the steel plate.

[0044] Preferably, there are two steel plates, which are parallel and spaced apart. Each screw 5 passes through the wooden column 1 and both steel plates, and the axes of the screws 5 are parallel. Wood fails brittlely under tension and shear, and its strength is greatly affected by natural defects such as knots, grain, and cracks. However, it has a certain degree of plasticity under compression and bending. Inserting steel plates into the wooden column 1, with the wooden column 1 connected to the steel plates by screws 5, creates a semi-rigid connection between the wooden column 1 and the concrete foundation 3. This allows the wooden column 1 to rotate slightly in one direction. The wooden column 1 can rotate slightly in the direction perpendicular to the axis of the screw 5, but cannot rotate in the direction along the axis of the screw 5 due to the constraint of the steel plates. This releases the bending moment on one side of the wooden column 1, helping to release internal stress and reduce the impact of earthquakes, strong winds, and other disasters on the building. Compared with rigid nodes, semi-rigid nodes maintain structural stability while allowing beams a certain degree of rotational freedom at the node, thereby improving the overall flexibility of the structure.

[0045] Preferably, the second connecting member 23 is a steel plate, and there are multiple steel plates, two of which are vertically aligned with the two steel plates above the support plate, and the remaining steel plates are connected between the two steel plates as ribs to improve the strength of the support body.

[0046] In an optimized implementation, the surface of the wooden pillar 1 is coated with an anti-corrosion layer, which can prevent moisture and insects, thus extending the durability of the wooden pillar.

[0047] In the optimized implementation, the height of the support body is not less than 200 mm, and preferably 300 mm, to meet the moisture-proof requirements of the wooden column 1.

[0048] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0049] Those skilled in the art will understand that this invention can be implemented in many other specific forms without departing from the spirit and scope of this invention. Although embodiments of this invention have been described, it should be understood that this invention is not limited to these embodiments, and those skilled in the art can make changes and modifications within the spirit and scope of this invention as defined in the appended claims.

Claims

1. A timber column base connection node comprising a timber column, characterised in that, It also includes a steel structure support and an embedded plate embedded in a concrete foundation. The steel structure support is set on the embedded plate. The wooden column has a slot. The steel structure support includes a support body and a first connector. The first connector is set on the support body. The wooden column is set on the support body and the first connector is inserted into the slot. The first connector and the wooden column are locked together by screws. The support body is covered with a concrete protective layer.

2. The timber column base connection of claim 1, wherein, The support body includes a support plate and a second connecting member. The surface of the support plate is parallel to the horizontal plane. The second connecting member is disposed on the lower surface of the support plate, and the first connecting member is disposed on the upper surface of the support plate. The second connecting member is connected to the embedded plate.

3. The timber column base connection of claim 2, wherein, The first connector, the second connector, and the tray are an integral structure.

4. The timber column base connection of claim 2, wherein, The support body also includes a sleeve, which is connected to the lower plate surface of the support plate. The second connecting member is located inside the sleeve. The bottom of the sleeve is in contact with the embedded plate. The concrete protective layer is laid on the outside of the sleeve.

5. The timber column base connection of claim 2, wherein, The cross-sectional area of ​​the pallet is not greater than the cross-sectional area of ​​the wooden post.

6. The timber column base connection of claim 1, wherein, The surface of the wooden pillar is coated with an anti-corrosion layer.

7. The timber column base connection of claim 6, wherein, At least the lower end of the wooden column is provided with the anti-corrosion layer, and the height of the anti-corrosion layer is not less than the height of the first connector.

8. The timber column base connection of claim 1, wherein, The first connecting member is a steel plate, the surface of which is parallel to the vertical direction, and the axial direction of each screw is perpendicular to the surface of the steel plate.

9. The timber column base connection of claim 8, wherein, The number of steel plates is two, and the two steel plates are arranged parallel to each other and spaced apart.

10. The timber column base connection of claim 1, wherein, The height of the support body is not less than 200 mm.

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