A new type of wooden reticulated shell joint component and its preparation method

Abstract

The present invention relates to the technical field of building structures, and discloses a novel wooden reticulated shell node component and a preparation method thereof. The component includes an intermediate structure and wooden components connected to the intermediate structure. The intermediate structure includes an upper steel hub and a lower steel hub connected together. Upper flange plates and lower flange plates are respectively welded to the sides of the upper steel hub and the lower steel hub. Upper stiffening ribs and lower stiffening ribs are respectively welded inside the upper steel hub and the lower steel hub. The upper steel hub and the lower steel hub are welded with an upper corrugated web and a lower corrugated web at the midpoint of the upper and lower sides on the side. A corrugated mortise groove is provided at the end of the wooden component. The present invention uses a corrugated web to be connected with the wooden component in a mortise and tenon manner, avoiding the damage caused by the screw rod to the wood during the force-bearing process of the bolt connection node, and improving the integrity and stability of the node.

Description

Technical Field

[0001] The present invention relates to the technical field of building structures, and specifically to a novel wooden reticulated shell node member and a preparation method thereof. Background Technique

[0002] With the progress of science and technology, wooden structure buildings are constantly replacing traditional reinforced concrete structure buildings and becoming a new trend in the development of the civil engineering industry. Compared with steel-concrete buildings, wooden structures have the advantages of short construction period, energy conservation and environmental protection, and good seismic performance. The emergence of glued-laminated timber technology has significantly improved the performance of wood, making large-span wooden reticulated shell structures possible. Currently, the commonly studied connection devices for wooden reticulated shell nodes usually adopt the connection methods of steel splints and steel packing plates. There are still more or less some deficiencies in the existing connection designs. The commonly used node connection methods all use bolt connectors. However, under the action of bending moment, the bolt holes will be subjected to inclined grain compressive stress at a corresponding angle, resulting in transverse tensile stress in the bolt hole area of the wood, causing transverse tensile failure of the wood and even cracking; in many nodes of the structure, due to the large proportion of steel components, there are problems such as large self-weight of the nodes and too many steel components exposed outside, resulting in the influence on the original wooden appearance of the nodes; most of the nodes of modern large-span wooden reticulated shell structures belong to assembled nodes. If the node design is too complex, it will have higher requirements for the quality of subsequent construction and installation, increasing the risk of more errors during the construction and installation process. Through a large amount of data analysis and research, it can be known that construction and installation errors are one of the important factors leading to the reduction of structural bearing capacity. The errors generated during node processing and installation will cause a certain degree of member damage, so that there is a gap between the actual bearing capacity of the node and the designed value of the expected bearing capacity. Therefore, it is necessary to design a novel node that is easy to install and has a small self-weight of the node to make up for the above deficiencies. For this reason, we propose a novel wooden reticulated shell node member and a preparation method thereof. Summary of the Invention

[0003] (1) Technical Problems to be Solved

[0004] In view of the deficiencies of the prior art, the present invention provides a novel wooden reticulated shell node member and a preparation method thereof to solve the above problems.

[0005] (2) Technical Solutions

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A novel wooden reticulated shell joint member includes an intermediate structure and wooden members connected to the intermediate structure. The intermediate structure includes an upper steel hub and a lower steel hub connected together. Upper flange plates and lower flange plates are respectively welded to the sides of the upper steel hub and the lower steel hub. Upper stiffening ribs and lower stiffening ribs are respectively welded inside the upper steel hub and the lower steel hub. The upper steel hub and the lower steel hub are welded with an upper corrugated web and a lower corrugated web at the midpoint of the upper and lower sides of the side. The upper corrugated web and the lower corrugated web are respectively welded to the contact surfaces of the corresponding upper flange plates and lower flange plates. Upper bolt holes and lower bolt holes are respectively provided at the bottom surfaces of the upper steel hub and the lower steel hub. The end of the wooden member is provided with a mortise and tenon groove in a corrugated form.

[0008] Preferably, the horizontal straight length of the middle corrugation of the mortise and tenon groove is 1.5 times the width of the wooden member, and the depth of the mortise and tenon groove is half of the height of the wooden member.

[0009] Preferably, the bending forms of the upper corrugated web and the lower corrugated web are the same or staggered with each other, and the shape of the mortise and tenon groove corresponds to that of the upper corrugated web and the lower corrugated web.

[0010] Preferably, upper steel webs and lower steel webs are respectively welded to the sides of the upper steel hub and the lower steel hub.

[0011] Preferably, the widths of the upper flange plate and the lower flange plate are equal to the width of the wooden member.

[0012] A preparation method of a novel wooden reticulated shell joint member includes the following contents:

[0013] The first step: Weld the upper flange plate to the upper edge of each side of the upper steel hub, weld the upper stiffening rib inside the upper steel hub, weld the upper corrugated web to the upper and lower sides of the side of the upper steel hub, weld the contact surface of the upper corrugated web and the upper flange plate, and set the upper bolt hole at the bottom surface of the upper steel hub to manufacture the upper component;

[0014] The second step: Weld the lower flange plate to the lower edge of each side of the lower steel hub, weld the lower stiffening rib inside the lower steel hub, weld the lower corrugated web to the side, weld the contact surface of the lower corrugated web and the lower flange plate, and set the lower bolt hole at the bottom surface of the lower steel hub to manufacture the lower component;

[0015] The third step: Embed a single wooden member into the lower corrugated web welded to the lower flange plate of the lower component from top to bottom along the mortise and tenon groove of the wooden member, and repeat this step for the circumferential array of the remaining wooden members to form the first assembled body;

[0016] The third step: Embed the upper corrugated web welded to the upper flange plate of the upper component into the mortise and tenon groove of the wooden member from top to bottom at a predetermined position to form the second assembled body, use bolts to connect the upper steel hub and the lower steel hub, and install the bolts to complete the installation of the joint.

[0017] (III) Advantageous Effects

[0018] Compared with the prior art, the novel wooden reticulated shell joint member and its preparation method provided by the present invention have the following advantageous effects:

[0019] 1. The present invention uses a corrugated web to connect with wooden members in a mortise and tenon manner, avoiding the damage to the wood caused by the screw rod during the force application process of the bolt connection joint, and improving the integrity and stability of the joint.

[0020] 2. The present invention facilitates the inspection, disassembly, replacement and reinforcement of steel members, etc. during the long-term use process of the building structure, is conducive to the reuse of the wooden reticulated shell joints, and prolongs the service life of the structure.

[0021] 3. The present invention connects the wooden members with the joint in a mortise and tenon manner, reduces the use of other steel members, and effectively reduces the self-weight of the joint.

[0022] 4. The assembly steps of the present invention are simple. Each component forming the joint can be prefabricated and processed in the factory. The on-site construction mainly focuses on assembly, and the workload of bolt installation is small, effectively simplifying the construction and installation processes and improving the production and use efficiency.

[0023] 5. The present invention does not adopt the current commonly used conventional steel-wood bolt connection method, but uses a corrugated web mortise and tenon wooden member, using the corrugated web to restrain the wooden member in the joint, avoiding the damage to the wood caused by the screw rod during the force application process of the bolt connection joint. It saves space and is aesthetically pleasing in architecture, and the connection structure is simple and more convenient to install. Each component forming the joint can be prefabricated and processed in the factory. The on-site construction mainly focuses on assembly, and the workload of bolt installation is small. In summary, it can be seen that this joint form and assembly method save building space, have a clear force transmission path, are safe and reliable, are simple and convenient to construct, meet the requirements of actual engineering design and construction, are environmentally friendly and energy-saving, and this joint is conducive to disassembly, inspection, reinforcement and recycling, better meeting the requirements of current green buildings. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a three-dimensional structure diagram of the upper steel hub of the embodiment of the present invention;

[0025] Figure 2 is a top view of the upper steel hub of the embodiment of the present invention;

[0026] Figure 3 is a half-sectional view of the upper steel hub of the embodiment of the present invention;

[0027] Figure 4 is a three-dimensional structure diagram of the lower steel hub of the embodiment of the present invention;

[0028] Figure 5It is the bottom view of the lower steel hub of the embodiment of the present invention;

[0029] Figure 6 It is the half-sectional view of the lower steel hub of the embodiment of the present invention;

[0030] Figure 7 It is the three-dimensional schematic diagram of the corrugated mortise and tenon wooden member of the embodiment of the present invention;

[0031] Figure 8 It is the top view of the corrugated mortise and tenon wooden member of the embodiment of the present invention;

[0032] Figure 9 It is the schematic diagram of the corrugated web welded to the lower flange plate by embedding a single wooden member from top to bottom along the mortise and tenon groove opening direction of the wooden member in the embodiment of the present invention;

[0033] Figure 10 In the embodiment of the present invention, the remaining wooden members are installed in a circumferential array according to the installation method of a single wooden member;

[0034] Figure 11 It is the schematic diagram of embedding the corrugated web welded to the upper flange plate into the mortise and tenon groove of the assembled wooden members from top to bottom in the embodiment of the present invention;

[0035] Figure 12 It is the three-dimensional schematic diagram of the corrugated webs with staggered welding bands of the upper and lower flange plates at the node in the embodiment of the present invention;

[0036] Figure 13 It is the half-sectional schematic diagram of the node in the embodiment of the present invention;

[0037] Figure 14 It is the three-dimensional structure schematic diagram of the completed node assembly in the embodiment of the present invention;

[0038] Figure 15 It is the three-dimensional structure schematic diagram of adding a steel web to the upper and lower steel hubs at the node in the embodiment of the present invention;

[0039] Figure 16 It is the three-dimensional structure schematic diagram of the completed node assembly in the embodiment of the present invention.

[0040] In the figure: 1. Upper steel hub; 1a. Upper corrugated web; 1b. Upper flange plate; 1c. Upper bolt hole; 1d. Upper stiffening rib; 1e. Upper steel web; 2. Lower steel hub; 2a. Lower corrugated web; 2b. Lower flange plate; 2c. Lower bolt hole; 2d. Lower stiffening rib; 2e. Lower steel web; 3. Wooden member; 3a. Mortise and tenon groove opening. Specific implementation manner

[0041] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0042] Embodiment 1:

[0043] As Figures 1 - 3 shown, the novel wooden reticulated shell joint member provided in this embodiment includes an intermediate structure and wooden members connected to the intermediate structure. The intermediate structure includes an upper steel hub and a lower steel hub connected together. Upper flange plates and lower flange plates are respectively welded to the sides of the upper steel hub and the lower steel hub. Upper stiffening ribs and lower stiffening ribs are respectively welded inside the upper steel hub and the lower steel hub. The upper steel hub and the lower steel hub are welded with an upper corrugated web and a lower corrugated web at the midpoint of the upper and lower sides on the side. The upper corrugated web and the lower corrugated web are respectively welded to the contact surfaces of the corresponding upper flange plates and lower flange plates. Upper bolt holes and lower bolt holes are respectively provided at the bottoms of the upper steel hub and the lower steel hub. The end of the wooden member is provided with a mortise and tenon notch in the form of a corrugation.

[0044] For the upper steel hub 1, upper flange plates 1b are welded to the upper edges of each side. Among them, the width of the upper flange plate 1b is equal to the width of the wooden member. Upper stiffening ribs 1d are welded inside the upper steel hub 1. An upper corrugated web 1a is welded at the midpoint of the upper and lower sides on the side. The upper corrugated web 1a is welded to the contact surface of the upper flange plate 1b. Upper bolt holes 1c are provided at the bottom of the upper steel hub 1, and the spacing and end distance should meet the regulations of the steel structure code;

[0045] As Figures 4 - 6 shown, for the lower steel hub 2, lower flange plates 2b are welded to the lower edges of each side. Among them, the width of the lower flange plate 2b is equal to the width of the wooden member 3. Lower stiffening ribs 2d are welded inside the lower steel hub 2. A lower corrugated web 2a is welded at the midpoint of the upper and lower sides on the side. The lower corrugated web 2a is welded to the contact surface of the lower flange plate 2b. Lower bolt holes 2c are provided at the bottom of the lower steel hub 2, and the spacing and end distance should meet the regulations of the steel structure code;

[0046] As Figures 7 - 8 shown, the end of the wooden member 3 of the present invention is a mortise and tenon notch 3a in the form of a corrugation. Among them, the horizontal straight length of the corrugation is 1.5 times the width of the wooden member. The corrugation height of the notch is determined according to the size of the wooden member and the engineering stress requirements, and the depth is half of the height of the wooden member;

[0047] As Figures 9 - 10As shown, a single wooden member 3 is inserted into the lower corrugated web 2a welded to the lower flange plate 2b from top to bottom along the mortise and tenon groove 3a of the wooden member, and the remaining wooden members 3 are circularly arrayed and this step is repeated to form the first assembly;

[0048] As Figure 11 and Figure 12 shown, the upper corrugated web 1a welded to the upper flange plate 1b is inserted into the mortise and tenon groove 3a of the wooden member 3 from top to bottom at a predetermined position to form the second assembly, and the upper steel hub 1 and the lower steel hub 2 are connected using bolts; install the bolts to complete the installation of the joint.

[0049] Embodiment 2:

[0050] Refer to Figure 13 and 14 , this embodiment is further optimized on the basis of Embodiment 1.

[0051] In this embodiment, mortise-type corrugated webs with staggered welding bands of upper and lower flange plates are used for mortise and tenon connection of wooden members. The difference between this wooden reticulated shell joint and Embodiment 1 is that the corrugated webs are staggered, and the form of the tenon groove at the end of the wooden member 3 corresponds to the staggered corrugated webs, and other structures are the same as those in Embodiment 1.

[0052] Embodiment 3:

[0053] Refer to Figure 15 and 16 , this embodiment is further optimized on the basis of Embodiments 1 and 2.

[0054] In this embodiment, upper steel webs 1e are welded to the left and right sides of the upper steel hub 1, and lower steel webs 2e are welded to the left and right sides of the lower steel hub 2. The upper steel webs 1e and the lower steel webs 2e are of equal size to further restrict the wooden member 3 and enhance the stiffness of the joint. When constraints are applied to the left and right sides of the wooden member 3, the length of the corrugated web can be appropriately reduced. During the assembly process, the wooden member has been restricted and will not displace, and the operation is simple and conducive to installation.

[0055] In the above embodiments of the present invention, the corrugated web is connected to the wooden member by means of mortise and tenon, avoiding the damage to the wood caused by the screw rod during the force application process of the bolt connection joint, and improving the integrity and stability of the joint.

[0056] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A new type of joint component for a wooden reticulated shell, characterized in that, It includes an intermediate structure and a wooden member (3) connected to the intermediate structure. The intermediate structure includes an upper steel hub (1) and a lower steel hub (2) connected together. Upper flange plates (1b) and lower flange plates (2b) are respectively welded to the sides of the upper steel hub (1) and the lower steel hub (2). Upper stiffening ribs (1d) and lower stiffening ribs (2d) are respectively welded inside the upper steel hub (1) and the lower steel hub (2). Upper corrugated webs (1a) and lower corrugated webs (2a) are welded at the midpoint of the upper and lower sides of the sides of the upper steel hub (1) and the lower steel hub (2). The upper corrugated webs (1a) and the lower corrugated webs (2a) are respectively welded to the contact surfaces of the corresponding upper flange plates (1b) and lower flange plates (2b). Upper bolt holes (1c) and lower bolt holes (2c) are respectively provided at the bottom surfaces of the upper steel hub (1) and the lower steel hub (2). The end of the wooden member (3) is provided with a mortise and tenon groove opening (3a) in a corrugated form.

2. The novel wooden reticulated shell joint member according to claim 1, characterized in that: The horizontal straight length of the corrugation of the mortise and tenon groove opening (3a) is 1.5 times the width of the wooden member (3), and the depth of the mortise and tenon groove opening (3a) is half of the height of the wooden member (3).

3. The novel wooden reticulated shell joint member according to claim 1, wherein: The bending forms of the upper corrugated web (1a) and the lower corrugated web (2a) are the same or staggered with each other, and the shape of the mortise and tenon groove opening (3a) corresponds to that of the upper corrugated web (1a) and the lower corrugated web (2a).

4. The novel wooden reticulated shell joint member according to claim 1, characterized in that: Upper steel webs (1e) and lower steel webs (2e) are respectively welded to the sides of the upper steel hub (1) and the lower steel hub (2).

5. The novel wooden reticulated shell joint member according to claim 4, characterized in that: The widths of the upper flange plate (1b) and the lower flange plate (2b) are equal to the width of the wooden member (3).

6. A preparation method of a novel wooden reticulated shell joint member, characterized in that, It includes the following content: The first step: Weld the upper flange plate (1b) to the upper edge of each side of the upper steel hub (1), weld the upper stiffening rib (1d) inside the upper steel hub (1), weld the upper corrugated web (1a) at the midpoint of the upper and lower sides of the side of the upper steel hub (1), weld the contact surface of the upper corrugated web (1a) and the upper flange plate (1b), set the upper bolt hole (1c) at the bottom surface of the upper steel hub (1), and manufacture the upper component; The second step: Weld the lower flange plate (2b) to the lower edge of each side of the lower steel hub (2), weld the lower stiffening rib (2d) inside the lower steel hub (2), weld the lower corrugated web (2a) at the midpoint of the upper and lower sides of the side of the lower steel hub (2), weld the contact surface of the lower corrugated web (2a) and the lower flange plate (2b), set the lower bolt hole (2c) at the bottom surface of the lower steel hub (2), and manufacture the lower component; The third step: Embed a single wooden member (3) from top to bottom along the mortise and tenon groove opening (3a) of the wooden member into the lower corrugated web (2a) welded to the lower flange plate (2b) of the lower component, and repeat this step for the circumferential array of the remaining wooden members (3) to form the first assembled body; The third step: Embed the upper corrugated web (1a) welded to the upper flange plate (1b) of the upper component from top to bottom into the mortise and tenon groove opening (3a) of the wooden member (3) at a predetermined position to form the second assembled body, use bolts to connect the upper steel hub (1) and the lower steel hub (2), install the bolts, and complete the installation of the joint.

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