A method for connecting a steel structure and a wooden angle-shaped dougong arch
By using in-depth design and 3D modeling techniques for the corner brackets, cutting and redesigning the seat brackets, and combining screws and connectors, the problem of installing wooden corner brackets in steel structures was solved, achieving precise installation and high-quality construction of antique-style components.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SHANXI FIRST CONSTR GROUP
- Filing Date
- 2023-04-26
- Publication Date
- 2026-06-09
Smart Images

Figure CN116517199B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of architecture, and more particularly to a method for connecting a steel structure with a wooden dougong (bracket set). Background Technology
[0002] With the diversification of architectural styles, more and more imitation Tang Dynasty buildings are appearing, achieving perfect architectural artistry through their sturdiness, exquisiteness, and ingenuity. Currently, many imitation ancient buildings use steel structures for their main structure, primarily transferring loads through steel columns and beams. The dougong (bracket set), as a decorative component, needs to be installed on the steel beams or columns, while the pingshenke (platform brackets) can sit directly on the steel beams, supported by them. To ensure the overall structural integrity of the building, the corner columns need to rise from their base to the bottom of the corner beams to support the loads of the entire floor and roof. Traditionally, corner brackets are installed on top of columns. However, since the steel columns occupy the installation space, the installation method needs to be reconsidered. Connecting the wooden components to the steel columns has become a challenge in corner bracket installation. Summary of the Invention
[0003] Therefore, the purpose of this invention is to provide a method for connecting steel structures and wooden corner brackets, which removes the positions occupied by steel columns in the corner brackets, re-disassembles the corner brackets, and changes their installation method. This method can ensure the accuracy and precision of the corner bracket installation during construction and improve the installation quality of the entire eaves antique-style component.
[0004] To achieve the aforementioned objectives, the technical solution adopted is as follows:
[0005] A method for connecting a steel structure with a wooden corner bracket set includes the following steps: familiarizing oneself with the drawings → detailed design of the corner bracket set → 1:1 scale model of the column-head bracket set → fabrication of the wooden bracket set components → anti-corrosion treatment of the contact surfaces of the wooden components → welding of bolts and wooden component connectors → assembly of related components → installation of the bracket set components.
[0006] As a further improvement to the present invention, the detailed design of the diagonal family specifically includes the following steps:
[0007] (1) The diameter of the corner post occupies the installation position of the corner bracket, so the corner bracket is cut into several small pieces;
[0008] (2) The seat of the corner is redesigned and made of pine wood with a length of 166mm, a height of 140mm and a thickness of 20mm. Each seat consists of four first mounting plates and four second mounting plates.
[0009] (3) Based on the design drawings, the shape of the octagonal pagoda and the ancient building wood construction method, a three-dimensional model of the corner structure is established. The correct and accurate measurement of the component dimensions can be observed and checked from the graphic, providing theoretical data support for the construction and processing, while improving the utilization rate of materials and reducing labor intensity.
[0010] As a further improvement of the present invention, the 1:1 scale model of the dougong (bracket set) includes the following steps: First, based on the node drawing, the details of the dougong, arch, and beam components are processed, including the volutes, spurs, and hidden engravings of the arch eyes. After the details of the antique components are determined, the parts of the dougong components are refined based on the 1:1 scale model of the components, and component templates are made.
[0011] As a further improvement of the present invention, the production of the dougong wooden components specifically includes the following steps: selecting a zuanzhutou dougong, making a 1:1 solid model, using the solid model and component template as the standard, and using a dougong processing machine tool to carry out the production of each component, producing the dougong, arch, and fang wooden antique components in sections and pieces, which can ensure the consistency of component dimensions, reduce errors, and provide favorable conditions for subsequent assembly and installation.
[0012] As a further improvement of the present invention, the anti-corrosion treatment of the contact surface of the wooden components specifically includes the following steps: the contact parts of the wooden components at all steel-wood joints are treated with anti-corrosion, a base is sealed with diluted epoxy resin, and then a layer of asphalt coating is applied, wherein the mass ratio of epoxy resin to diluent is 6:1.
[0013] As a further improvement of the present invention, the welding of the screw and wooden component connectors specifically includes the following steps: Before the installation of the bracket components, the accuracy of the position of the bracket screw is first checked. After confirming that there is no error, the screw and wooden component connectors for fixing the bracket are welded to the steel beam and column body. The screw and wooden component connectors are treated with anti-corrosion. A screw hole with a diameter not greater than 2 mm of the screw diameter is drilled in the arch body where the bracket is fixed with screws, and the hole is ensured to be straight. The bracket is fixed firmly with double nuts, which are recessed into the arch body to avoid being exposed and affecting the visual effect.
[0014] As a further improvement of the present invention, the combination of related components specifically includes the following steps:
[0015] (1) Combination of bracket components: According to the composition of the corner brackets and their vertical position, the relevant components are combined. The base bracket is combined with 50mm long air nails; other components are combined with 10mm diameter through-wire hangers and shims.
[0016] (2) Seat assembly: The seat assembly is divided into two steps. The first step is to divide each seat into two identical semi-finished products according to the designed model, saving installation and classification time. The second step is to fix the two components under the sloping awning together with pneumatic nails, and then install a seat component under the sloping awning on each side.
[0017] As a further improvement of the present invention, the installation of the bracket components specifically includes the following steps:
[0018] (1) Measurement and setting out
[0019] The steel beam below the installation platform will be centered and the center line will be marked. The center line will be transferred to the column using an infrared green laser 5-line level to determine the center line of the corner beam. This will ensure that the center of the corner beam and the center of the platform are in the same position and at the same height. At the same time, the bottom elevation of all 8 corner beams on the floor will be marked on the column. The bottom elevation of the corner beams on the entire floor will be consistent and consistent with the elevation of the platform.
[0020] (2) Install the seat.
[0021] Apply two-component silicone structural adhesive to the two assembled half-buckets. Apply adhesive to each part that comes into contact with the steel column. The ambient temperature should be between 10℃ and 40℃ when applying the adhesive. After applying the adhesive, install the buckets on the steel column according to the position of the corner buckets and connect the joints with pneumatic nails. Pay attention to the correctness of the elevation and position during installation, and use a spirit level to check whether the top of the bucket is level.
[0022] (3) Install the upper components of the bracket set.
[0023] a. First, install the outermost inclined beam assembly. After finding the correct position, place the inclined beam assembly on top. The center of the inclined beam and the center of the upper corner beam should be on the same line. After adjusting the elevation and position, weld the screw to the upper corner beam.
[0024] b. Next, install the combined components on both sides of the inclined arch. The center line of the outer arm arch is parallel to the center line of the steel beam of the installation platform. After adjusting the position and elevation, weld the screw rod to the steel column. Since there is a certain distance between the screw rod and the steel column, in order to ensure the accuracy of the position of the entire component after welding, shims should be welded between the screw rod and the steel column.
[0025] c. Finally, install the cloud-shaped assembly components inside the corner section. Align the center line of the inner arm arch with the center line of the steel beam of the installation platform. After adjusting the position and elevation, weld the bolts to the upper frame.
[0026] During installation, strict control must be exercised over the bottom elevation and position of the corner brackets. This is a prerequisite for ensuring the neatness and aesthetics of all bracket components, and also a fundamental guarantee for the successful installation of the beams. During welding, strict control must be exercised over the position and elevation of each component assembly to ensure the accuracy of each component's installation.
[0027] The beneficial effects of this invention are:
[0028] 1. This invention changes the traditional installation method of bracket sets by removing the position occupied by steel columns in the corner bracket sets, re-disassembling the corner bracket sets, and changing their installation method. This can ensure the accuracy and precision of the installation of the corner bracket sets during construction and improve the installation quality of the entire eaves antique components.
[0029] 2. This invention combines the principles of woodworking construction and drawing requirements, decomposes each component of the corner frame, and uses CAD 3D modeling technology to accurately draw each component as a 1:1 model. The components are then simulated and pre-assembled to verify the accuracy of the mortise and tenon positions and dimensions, and continuously optimized and adjusted. Each component is marked with 3D dimensions and data is laid out sequentially to ensure that the mortise and tenon positions and angles of the model match the wooden components, so that the assembly of individual components is consistent with the assembly of the model, providing on-site guidance for the processing and assembly of wooden components.
[0030] 3. After the processing of each wooden component of the present invention is completed, they are stacked according to type and specifications, and some related components are assembled in advance to improve the correctness of the installation of wooden components;
[0031] 4. This invention uses 3D modeling technology to assist in the design of ancient building construction sites, which can transform traditional techniques into detailed 3D models, realize the visualization of mortise and tenon joints of wooden components, pre-assemble them, achieve node optimization, and realize accurate quantity calculation of dougong wooden components. Attached Figure Description
[0032] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:
[0033] Figure 1 A structural diagram illustrating the overall shape of the sitting frame;
[0034] Figure 2 This is a structural schematic diagram of the first mounting plate of the sitting compartment;
[0035] Figure 3 This is a schematic diagram of the structure of the second mounting plate of the sitting compartment;
[0036] Figure 4 This is a structural diagram of the oblique angulation figure;
[0037] Figure 5This is a schematic diagram of the structure of the central arch with the rear of the ridge;
[0038] Figure 6 This is a schematic diagram of the structure of the cloud head.
[0039] Figure 7 A schematic diagram of a grasshopper's head with a central arch;
[0040] Figure 8 This is a schematic diagram of the arm-shaped arch structure;
[0041] Figure 9 This is a schematic diagram of the first step in the installation of the truck bed assembly;
[0042] Figure 10 This is a schematic diagram of the second step of the installation of the truck bed assembly;
[0043] Figure 11 A graphic diagram showing the assembly positions of the components on the seat.
[0044] Figure 12 A schematic diagram showing the installation positions of components on the seat frame, in combinations two and three.
[0045] Figure 13 The diagram shows the installation positions of components on the seat frame, as shown in Figures 4 and 5.
[0046] Figure 14 A schematic diagram of assembly six for the installation positions of the components on the seat;
[0047] Figure 15 The finished effect after the large bucket is installed;
[0048] Figure 16 This is an overall rendering of the finished product after the installation of the corner unit. Detailed Implementation
[0049] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.
[0050] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.
[0051] A method for connecting a steel structure with a wooden corner bracket set includes the following steps: familiarizing oneself with the drawings → detailed design of the corner bracket set → 1:1 scale model of the column-head bracket set → fabrication of the wooden bracket set components → anti-corrosion treatment of the contact surfaces of the wooden components → welding of bolts and wooden component connectors → assembly of related components → installation of the bracket set components.
[0052] The familiarity with the drawings specifically includes:
[0053] By familiarizing oneself with the drawings and technical briefings, one can gain a detailed understanding of the building's functional practices, structural features, design intent, and any special usage requirements.
[0054] Be familiar with the snap-fit and installation sequence of each component, and be familiar with the composition of each group of components.
[0055] Familiarize yourself with whether the length, width, and thickness of the components on the drawings are consistent with traditional weighted dimensions to avoid misoperation. Verify the special construction methods for individual parts, verify the historical requirements of the construction methods, and be familiar with the different construction methods from different eras.
[0056] The detailed design of the diagonal family includes the following steps:
[0057] (1) The corner post has a diameter of 400mm, which occupies the installation position of the corner bracket and cuts the corner bracket into several small pieces, making the components of the corner bracket incomplete and separated front and back. It is necessary to resize each component. Since the diameter of the corner post is much larger than the size of the corner bracket's base, strictly speaking, the base is not visible from the outside. Because the presence of the steel post makes the corner bracket incomplete, a secondary detailed design of the corner bracket is required.
[0058] (2) Taking into account the overall shape of the corner frame and ease of installation, the seat of the corner frame was redesigned. It was made of pine wood planks that are 166mm long, 140mm high, and 20mm thick. Each seat consists of four first mounting plates and four second mounting plates, such as... Figure 1-3 As shown;
[0059] (3) Based on the design drawings, the shape of the octagonal pagoda, and the ancient building construction methods, a three-dimensional model of the corner structure was established. This model allows for intuitive observation and inspection of the correct and accurate measurement of the dimensions of each component, providing theoretical data support for the fabrication and processing of the structure. It also improves material utilization and reduces labor intensity. The overall shape of the corner structure and the graphics of each component are shown below. Figure 4-8 As shown;
[0060] The 1:1 scale model of the dougong (bracket set) includes the following steps: First, based on the node drawing, the details of the dougong, arch, and beam components are processed, including the lobes, clasps, and hidden engravings of the arch eyes. After the details of the antique components are determined, the parts of the dougong components are refined based on the 1:1 scale model, and component templates are made.
[0061] The specific steps for making the dougong wooden components are as follows: Select a zuanzhutou dougong and make a 1:1 solid model. Using the solid model and component template as the standard, use a dougong processing machine to make each component. Make the dougong, arch, and beam wooden antique components in sections and pieces. This can ensure the consistency of component dimensions, reduce errors, and provide favorable conditions for subsequent assembly and installation.
[0062] The anti-corrosion treatment of the contact surface of the wooden components includes the following steps: all contact parts of the wooden components at the steel-wood joint are treated with anti-corrosion, and a base is sealed with diluted epoxy resin, followed by a coat of asphalt coating. The mass ratio of epoxy resin to thinner is 6:1.
[0063] The welding of the screw rods and wooden component connectors specifically includes the following steps: Before installing the bracket set components, first verify the accuracy of the position of the bracket set screw rods. After confirming that there are no errors, weld the screw rods and wooden component connectors for fixing the bracket set to the steel beams and columns. The screw rods and wooden component connectors are treated with anti-corrosion measures. Drill screw holes with a diameter not greater than 2 mm of the screw rod diameter in the arch body where the screw rods are used to fix the bracket set, and ensure that the holes are straight. Fix the bracket set firmly with double nuts, which are recessed into the arch body to avoid being exposed and affecting the visual effect.
[0064] The assembly of the relevant components specifically includes the following steps:
[0065] (1) Combination of bracket components: According to the composition of the corner brackets and their vertical position, the relevant components are combined. The base bracket is combined with 50mm long air nails; other components are combined with 10mm diameter through-wire hangers and shims.
[0066] (2) Seat assembly: Seat assembly consists of two steps. The first step is to divide each seat into two identical semi-finished products according to the designed model, saving installation and sorting time. The second step is to first fix the two components under the sloping bracket together with pneumatic nails, and then install a seat component under the upright bracket on each side, such as... Figure 9-10 As shown.
[0067] The components on the seat are installed in different positions, resulting in a total of 6 combinations.
[0068] Assembly 1: First, assemble the inclined bracket and the connecting bracket together. To ensure no hangers are missing after installation, the hangers should be positioned as close to the steel column as possible while maintaining a reliable connection. Drill a hole 70mm inward from the end of the connecting bracket, starting from the center. Also, use a hole saw to cut a 40mm diameter, 20mm deep groove below the inclined bracket to facilitate the installation of washers and nuts. The assembly diagram is as follows: Figure 11 As shown;
[0069] Combination two and combination three are the same, combining the main angulation and the main grasshopper head with the armrest arch, using the same connection method as combination one. The combined diagram is as follows: Figure 12 As shown;
[0070] Combinations four and five-one involve fixing the central melon arch and the central ten-thousand arch together with pneumatic nails. The combined diagram is as follows. Figure 13 As shown;
[0071] Combination six connects the cloud head and the sloping tail together, using the same connection method as combination one. The combined graphic is as follows: Figure 14 As shown;
[0072] The installation of the bracket components specifically includes the following steps:
[0073] (1) Measurement and setting out
[0074] The steel beam below the installation platform will be centered and the center line will be marked. The center line will be transferred to the column using an infrared green laser 5-line level to determine the center line of the corner beam. This will ensure that the center of the corner beam and the center of the platform are in the same position and at the same height. At the same time, the bottom elevation of all 8 corner beams on the floor will be marked on the column. The bottom elevation of the corner beams on the entire floor will be consistent and consistent with the elevation of the platform.
[0075] (2) Install the seat.
[0076] Apply two-component silicone structural adhesive to the two assembled half-buckets, ensuring that each contact point with the steel column is covered. The ambient temperature during application should be between 10℃ and 40℃. After application, install the buckets onto the steel columns according to the designated positions for the corner buckets, and secure the joints with pneumatic nails. During installation, ensure the elevation and position are correct, and use a spirit level to check that the top of the bucket is level. The finished effect after bucket installation is as follows: Figure 15 As shown.
[0077] (3) Install the upper components of the bracket set.
[0078] a. First, install the outermost inclined beam assembly. After finding the correct position, place the inclined beam assembly on top. The center of the inclined beam and the center of the upper corner beam should be on the same line. After adjusting the elevation and position, weld the screw to the upper corner beam.
[0079] b. Next, install the combined components on both sides of the inclined arch. The center line of the outer arm arch is parallel to the center line of the steel beam of the installation platform. After adjusting the position and elevation, weld the screw rod to the steel column. Since there is a certain distance between the screw rod and the steel column, in order to ensure the accuracy of the position of the entire component after welding, shims should be welded between the screw rod and the steel column.
[0080] c. Finally, install the cloud-shaped assembly components inside the corner section. Align the center line of the inner arm arch with the center line of the steel beam of the installation platform. After adjusting the position and elevation, weld the bolts to the upper frame.
[0081] The overall effect after the installation of the corner is as follows Figure 16 As shown, the bottom elevation and position of the corner brackets must be strictly controlled during installation. This is a prerequisite for ensuring the neatness and aesthetics of all bracket components, and also a fundamental guarantee for the successful installation of the beams. During welding, the position and elevation of each component must be strictly controlled to ensure the accuracy of the installation position.
[0082] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, substitutions, improvements, component splitting, or combinations made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.
Claims
1. A method for connecting a steel structure with a wooden dougong bracket system, characterized in that, Includes the following steps: Familiarize yourself with the drawings → Detail the design of the diagonal brackets → 1:1 scale sample and model of the column head brackets → Fabrication of wooden components for brackets → Anti-corrosion treatment of the contact surfaces of wooden components → Welding of bolts and wooden component connectors → Assembly of related components → Installation of bracket components; The detailed design of the diagonal family specifically includes the following steps: (1) The diameter of the corner post occupies the installation position of the corner bracket, so the corner bracket is cut into several small pieces; (2) The seat of the corner is redesigned and made of pine wood with a length of 166mm, a height of 140mm and a thickness of 20mm. Each seat consists of four first mounting plates and four second mounting plates. (3) Based on the design drawings, the shape of the octagonal pagoda and the ancient building wood construction method, a three-dimensional model of the corner structure is established. The correct and accurate measurement of the dimensions of each component can be observed and checked from the graphics, providing theoretical data support for the processing and manufacturing of the components, while improving the utilization rate of materials and reducing labor intensity. The assembly of the relevant components specifically includes the following steps: (1) Combination of bracket components: According to the composition of the corner brackets and their vertical position, the relevant components are combined. The base bracket is combined with 50mm long air nails; other components are combined with 10mm diameter through-wire hangers and shims. (2) Seat assembly: The seat assembly is divided into two steps. The first step is to divide each seat into two identical semi-finished products according to the designed model to save installation and sorting time. The second step is to fix the two components under the sloping bracket together with pneumatic nails, and then install a seat component under the sloping bracket on each side. The installation of the bracket components specifically includes the following steps: (1) Measurement and setting out The steel beam below the installation platform will be centered and the center line will be marked. The center line will be transferred to the column using an infrared green laser 5-line level to determine the center line of the corner beam. This will ensure that the center of the corner beam and the center of the platform are in the same position and at the same height. At the same time, the bottom elevation of all 8 corner beams on the floor will be marked on the column. The bottom elevation of the corner beams on the entire floor will be consistent and consistent with the elevation of the platform. (2) Install the seat. Apply two-component silicone structural adhesive to the two assembled half-buckets. Apply adhesive to each part that comes into contact with the steel column. The ambient temperature should be between 10℃ and 40℃ when applying the adhesive. After applying the adhesive, install the buckets on the steel column according to the position of the corner buckets and connect the joints with pneumatic nails. Pay attention to the correctness of the elevation and position during installation, and use a spirit level to check whether the top of the bucket is level. (3) Install the upper components of the bracket set. a. First, install the outermost inclined beam assembly. After finding the correct position, place the inclined beam assembly on top. The center of the inclined beam and the center of the upper corner beam should be on the same line. After adjusting the elevation and position, weld the screw to the upper corner beam. b. Next, install the combined components on both sides of the inclined arch. The center line of the outer arm arch is parallel to the center line of the steel beam of the installation platform. After adjusting the position and elevation, weld the screw rod to the steel column. Since there is a certain distance between the screw rod and the steel column, in order to ensure the accuracy of the position of the entire component after welding, shims should be welded between the screw rod and the steel column. c. Finally, install the cloud-shaped assembly components inside the corner section. Align the center line of the inner arm arch with the center line of the steel beam of the installation platform. After adjusting the position and elevation, weld the bolts to the upper frame.
2. The method for connecting a steel structure and a wooden dougong bracket according to claim 1, characterized in that, The 1:1 scale model of the dougong (bracket set) includes the following steps: First, based on the node drawing, the details of the dougong, arch, and beam components are processed, including the lobes, clasps, and hidden engravings of the arch eyes. After the details of the antique components are determined, the parts of the dougong components are refined based on the 1:1 scale model, and component templates are made.
3. The method for connecting a steel structure and a wooden corner bracket according to claim 1, characterized in that, The specific steps for making the dougong wooden components are as follows: Select a zuanzhutou dougong and make a 1:1 solid model. Using the solid model and component template as the standard, use a dougong processing machine to make each component. Make the dougong, arch, and beam wooden antique components in sections and pieces. This can ensure the consistency of component dimensions, reduce errors, and provide favorable conditions for subsequent assembly and installation.
4. The method for connecting a steel structure and a wooden corner bracket according to claim 1, characterized in that, The anti-corrosion treatment of the contact surface of the wooden components includes the following steps: all contact parts of the wooden components at the steel-wood joint are treated with anti-corrosion, and a base is sealed with diluted epoxy resin, followed by a coat of asphalt coating. The mass ratio of epoxy resin to thinner is 6:
1.
5. The method for connecting a steel structure and a wooden corner bracket according to claim 1, characterized in that, The welding of the screw rods and wooden component connectors specifically includes the following steps: Before installing the bracket set components, first verify the accuracy of the position of the bracket set screw rods. After confirming that there are no errors, weld the screw rods and wooden component connectors for fixing the bracket set to the steel beams and columns. The screw rods and wooden component connectors are treated with anti-corrosion measures. Drill screw holes with a diameter not greater than 2 mm of the screw rod diameter in the arch body where the screw rods are used to fix the bracket set, and ensure that the holes are straight. Fix the bracket set firmly with double nuts, which are recessed into the arch body to avoid being exposed and affecting the visual effect.