Steel-wood combined hanging decoration truss construction method

Abstract

This invention relates to the field of building construction technology, specifically to a construction method for a steel-wood composite suspended decorative truss. The suspended decorative truss includes steel hangers and a truss structure. The truss structure includes multiple clusters of rods, each cluster comprising a horizontal bar, two first diagonal bars, and two second diagonal bars. The construction method includes the following steps: fabricating and fixing the steel hangers; fixing the horizontal bars: the horizontal bars span between the steel hangers; symmetrically inserting two first diagonal bars and two second diagonal bars between each horizontal bar to form a cluster of rods; adjacent clusters of rods forming structural units; connecting the structural units to form the truss structure. This method improves installation accuracy and enhances the safety of spatial positioning; the construction method is simpler and easier to operate, significantly improving work efficiency; the multiple clusters of rods form a truss structure with neat rows and lines, achieving the desired overall design effect.

Description

Technical Field

[0001] This invention relates to the field of building construction technology, specifically to a construction method for a steel-wood combined hanging decorative truss. Background Technology

[0002] Wood is a representative element of traditional Chinese culture, and timber-framed architecture refers to buildings constructed primarily of wood. This architectural style has a long history worldwide. In China, as early as the Stone Age more than 5,000 years ago, semi-subterranean dwellings with wooden frames supporting roofs appeared. Timber-framed buildings typically include a wooden frame, supporting structure, and exterior walls. Due to the lightweight, renewable, and environmentally friendly characteristics of wood, it is widely used in various construction projects and remains very popular in some countries and regions. It can be traditional residential buildings, religious buildings, or modern timber-framed villas and holiday homes. In today's context of vigorously promoting traditional culture, more and more timber-framed buildings or timber-decorative buildings are appearing before the world.

[0003] The suspended decorative truss is a novel type of steel-wood combined load-bearing planar truss. The suspension points and vertical members are primarily steel structures, while the horizontal structure uses multi-layered planar wooden trusses as chords, with extended wooden decorative rods forming a spatial structure. Due to the excessive weight of the suspended wooden truss, its novel structural form, and complex system, the load-bearing safety, spatial positioning, and installation accuracy of the component system are key control points. For example, invention patent CN 114319885 A discloses a truss installation method. Its structure includes multiple steel columns, an upper chord, a lower chord, and diagonal web members. The installation steps include: installing temporary supports on the base surface; installing the multi-layer truss on the temporary supports, with adjusting components and adjusting pads at the top of the temporary supports; and graded unloading: removing the adjusting pads, lowering the adjusting components step by step according to a set graded descent height, and monitoring the multi-layer truss to determine whether to pause or continue unloading. This prior art allows the deformation of the multi-layer truss to be within allowable limits and enables timely inspection and repair. However, the stress condition of this structural system needs improvement. The installation method is relatively complicated, requires real-time monitoring and human judgment, has low reliability, high labor costs, and low construction efficiency. Summary of the Invention

[0004] Based on the shortcomings of the aforementioned background technology, this invention addresses the difficulties in controlling the stress safety, spatial positioning, and installation accuracy of suspended decorative truss components. Its purpose is to provide a construction method for steel-wood combined suspended decorative trusses, which utilizes a herringbone-like support to optimize the stress system. Furthermore, the construction method is simpler and easier to operate, significantly improving work efficiency.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A construction method for a steel-wood composite suspended decorative truss, wherein the suspended decorative truss includes steel hangers and a truss structure, the truss structure includes multiple clusters of members, each cluster of members including a horizontal bar, two first diagonal bars, and two second diagonal bars, the construction method including the following steps:

[0007] Step 1: Fabricate and secure the steel hanger rod;

[0008] Step 2, Fix the crossbar: The crossbar spans between the steel hangers;

[0009] Step 3: symmetrically insert the two first diagonal bars and the two second diagonal bars between a horizontal bar to form a cluster of bars;

[0010] Step four: The rod groups of adjacent clusters form structural units;

[0011] Step 5: Connect the structural units to form a truss structure;

[0012] As a further improvement of the present invention, in step one, the steel hanger is provided with connecting ears on both sides, and the steel hanger is welded and fixed to the roof steel beam through the connecting ears.

[0013] As a further improvement of the present invention, in step two, the steel rod is provided with slots at equal intervals, and the crossbars are inserted into the slots one by one from the bottom, and the crossbars are perpendicular to the steel rod.

[0014] As a further improvement of the present invention, in step two, the cross section of the inserted crossbar is square, and all four sides of the cross section are at 45° to the steel hanger.

[0015] As a further improvement of the present invention, the groove width on the steel rod is greater than the diameter of the crossbar to achieve fine adjustment of the angle.

[0016] As a further improvement of the present invention, in step three, two first diagonal bars are symmetrically arranged above the crossbar at a 150° angle, and two second diagonal bars are symmetrically arranged below the crossbar at a 90° angle to form a cluster of bars.

[0017] As a further improvement of the present invention, in step three, the first and second diagonal bars in the same plane are at a 60° angle and are connected by a tenon and mortise joint; the first and second diagonal bars in different planes are at a 30° angle and are connected by a concealed type of through bolt.

[0018] As a further improvement of the present invention, the through bolt concealed connection is specifically as follows: the bolt is pushed into the solid wood of the rod, and after the bolt is installed and fixed, the groove is filled with structural adhesive and sealed with a wooden disc similar to the surrounding wood grain.

[0019] As a further improvement of the present invention, in step four, the first and second diagonal bars on each horizontal bar are equidistantly arranged along the extension direction of the horizontal bar, and the horizontal bar spans the first and last two steel hangers to form a structural unit.

[0020] As a further improvement of the present invention, in step five, two adjacent structural units are connected along the direction of the crossbar, and the crossbar of the latter unit is vertically inserted into the steel hanger of the former unit.

[0021] Therefore, the present invention has the following beneficial effects:

[0022] This invention provides a construction method for a steel-wood combined hanging decorative truss. By using diagonal braces symmetrically interspersed with horizontal bars in a herringbone-like support structure to optimize the stress system, the installation accuracy is improved and the safety of spatial positioning is enhanced by adjusting the angle between the wooden structural members during construction. Moreover, the construction method is simpler and easier to operate, reducing construction costs and significantly improving work efficiency. Multiple clusters of members form a truss structure with rows and lines, creating a smooth overall effect that achieves the desired design. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only a part of the embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is an elevation view of the steel hanger rod according to an embodiment of the present invention;

[0025] Figure 2 This is a side view of the steel hanger rod intersecting the crossbar according to an embodiment of the present invention;

[0026] Figure 3 This is a front view of the steel hanger rod intersecting the crossbar according to an embodiment of the present invention;

[0027] Figure 4 This is the connection node between the steel hanger and the crossbar in an embodiment of the present invention. Figure 1 ;

[0028] Figure 5 This is the connection node between the steel hanger and the crossbar in an embodiment of the present invention. Figure 2 ;

[0029] Figure 6 This is a side view of the first and second inclined rods in an embodiment of the present invention;

[0030] Figure 7 This is a front view of the first and second inclined rods in an embodiment of the present invention;

[0031] Figure 8 This is a schematic diagram of the installation and fixing of the first and second inclined rods according to an embodiment of the present invention;

[0032] Figure 9This is a schematic diagram of the tenon and mortise connection nodes of the first and second inclined rods in the same plane according to an embodiment of the present invention;

[0033] Figure 10 This is a schematic diagram of the M16 concealed through bolt structure according to an embodiment of the present invention;

[0034] Figure 11 This is a schematic diagram of a single structural unit according to an embodiment of the present invention;

[0035] Figure 12 This is a side view of the combination of multiple structural units (truss structure) in an embodiment of the present invention;

[0036] Figure 13 This is a front view of the combination of multiple structural units (truss structure) according to an embodiment of the present invention;

[0037] Figure 14 This is a schematic diagram of the installation of the top of the outer wooden component according to an embodiment of the present invention;

[0038] Figure 15 This is a schematic diagram of the bottom installation of the outer wooden component according to an embodiment of the present invention.

[0039] Explanation of reference numerals in the attached figures, wherein:

[0040] 1. Steel hanger rod, 2. Horizontal bar, 3. First diagonal bar, 4. Second diagonal bar, 5. M16 concealed through bolt, 6. Outer wooden component, 7. Wooden dowel, 8. Wooden disc. Detailed Implementation

[0041] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be arbitrarily combined with each other.

[0042] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0043] Reference Figures 1-15 This embodiment provides a construction method for a steel-wood combined suspended decorative truss. The suspended decorative truss includes steel hangers 1 and a truss structure. The truss structure includes multiple clusters of members, each cluster including a horizontal bar 2, two first diagonal bars 3, and two second diagonal bars 4. This invention is simple to operate, convenient to construct, quick and efficient, improving work efficiency, reducing construction costs, and minimizing quality problems. It solves a series of problems in existing multi-layer trusses, such as uncontrollable deformation of the upper and lower chords and diagonal web members during stress. The finished product has smooth lines, with members arranged in rows and lines, and is firmly installed.

[0044] The first task of this plan is the preparation and processing of materials:

[0045] like Figure 1 First, the steel hanger 1 is designed and manufactured in detail. Connecting lugs are provided on both sides of the steel hanger 1 to facilitate welding and fixing it to the roof steel beam. Next are three types of members: horizontal bar 2, first diagonal bar 3, and second diagonal bar 4. All are made from solid wood, preferably square with a cross-sectional dimension of 180mm × 180mm. The lengths are determined according to the design effect. Horizontal bar 2 has four lengths: 7000mm, 6000mm, 4500mm, and 3000mm; first diagonal bar 3 has two lengths: a1: 2500mm and a2: 3200mm; second diagonal bar 4 has only one length: b1: 2800mm. Finally, M16 concealed through bolts 5 and matching wooden round pieces 8 for concealed installation are prepared.

[0046] After the materials are prepared, on-site installation will proceed as follows:

[0047] First, the steel hanger rod 1 is firmly welded to the roof steel beam. In this embodiment, according to the design requirements, its angle with the roof is 60°. One unit contains two steel hanger rods 1. The bottom end plate of the steel hanger rod 1 is used as the rear steel plate. After all the crossbars 2 are inserted into the steel hanger rod 1, the enclosure is completed. After installation, anti-corrosion and anti-rust treatment is performed, and the outer layer is coated with imitation bronze fluorocarbon paint.

[0048] like Figure 2 , Figure 3 The installation of crossbar 2 is shown. First, install the 7000mm long crossbars: insert each member into the steel hanger 1 one by one from the bottom, ensuring the insertion angle is perpendicular to the steel hanger 1. All four sides of the crossbar 2's cross-section plane form a 45° angle with the steel hanger 1, and the edges are cut and trimmed according to the internal dimensions of the steel hanger 1. (Refer to...) Figure 4 , Figure 5The connection node diagram shows that the steel plate on the side of the steel rod 1 has a reserved hole. The M16 concealed through bolt 5 fixes the steel rod 1 to the crossbar 2. The through bolt is installed through the hole through which the two rods pass. This connection method can provide stronger support and stability. The nuts at both ends of the through bolt are further fixed by the outer wooden component 6.

[0049] Then install the 6000mm long crossbar 2, with a spacing of 509mm between it and the 7000mm long crossbar 2. The installation method is the same as that used to fix the 7000mm long crossbar 2 to the steel hanger 1.

[0050] After installing the two horizontal bars 2, the first diagonal bar 3 and the second diagonal bar 4 can be installed. The overall installation structure is as follows: Figure 8 As shown: Two first diagonal braces 3 are on top, and two second diagonal braces 4 are below, wrapping around the horizontal bar 2 in the middle. First, install the two second diagonal braces 4, which are inserted between the two horizontal bars 2 at a 90° angle. The two second diagonal braces 4 are fixed with M16 concealed through bolts 5 and concealed. The concealment treatment is as follows. Figure 10 As shown: the length of bolt 5 recessed into the solid wood is L1: 35mm. After bolt 5 is installed and fixed, the groove is filled with structural adhesive and sealed with a wooden disc 8 with a thickness of L2: 5mm, similar to the surrounding wood grain. The first diagonal bar 3 and the horizontal bar 2 are installed and fixed in the same way.

[0051] Then, the first diagonal brace 3 is installed and fixed to the crossbar using M16 concealed through bolts 5 in a crisscross pattern. The two first diagonal braces 3 form a 150° angle on the crossbar 2, and together with the previously installed second diagonal brace 4, they complete the enclosure of the crossbar 2. The angle between the first diagonal brace 3 and the second diagonal brace 4 is 60° when they are in the same plane, and 30° when they are not in the same plane. The first diagonal brace 3 and the second diagonal brace 4 in the same plane are connected by a mortise and tenon joint. The tenon is a protruding part, and the mortise is a recessed hole. The tenon can be inserted into the mortise to achieve a stable connection. This connection method does not require glue or metal screws, but relies on the geometric fit to maintain the stability of the structure. Figure 9 As shown: The first diagonal rod 3 is tenoned at its end, with tenon dimensions of 70mm (width) × 100mm (length) × 100mm (depth). A wooden dowel 7 is inserted 40mm from the end of the tenon. The wooden dowel 7 has a large end and a small end, with the large end measuring 24mm and the small end 20mm respectively. After the angles of the first diagonal rod 3 and the second diagonal rod 4 are adjusted, the wooden dowel 7 is driven in to fix them. The first diagonal rod 3 and the second diagonal rod 4, which are not on the same plane, are fixed by M16 concealed through bolts 5.

[0052] At this point, the two first diagonal bars 3 on top and the two second diagonal bars 4 on the bottom enclose the horizontal bar 2 in the middle, and are fixed together by bolts and tenon joints, forming a cluster that resembles "wings". Figure 6 , Figure 7As shown.

[0053] Subsequently, a 4500mm long horizontal bar 2 is installed, and a second cluster is installed on the 6000mm long horizontal bar 2. This process is repeated for a total of four horizontal bars 2, each with one cluster, spaced 900mm apart. The closest distance between each cluster and the steel hanger 1 is 350mm, thus forming a four-bar, four-cluster structural unit. Figure 11 As shown.

[0054] Finally, the two structural unit timber trusses are connected by side crossbars 2. The two units are connected along the direction of crossbars 2, with the crossbar 2 of the latter unit inserted into the steel hanger 1 of the former unit. The installation method is the same as... Figure 4 , Figure 5 The node diagram is identical, with the angle perpendicular to steel hanger 1 and parallel to the front unit crossbar 2, at a distance of 509mm. The installation effect of the two structural units is as follows. Figure 12 , Figure 13 .

[0055] According to the design requirements, multiple structural units are installed to form a truss structure with an overall hanging decorative effect.

[0056] After completion, install the lower edge sealing steel plate of steel hanger 1, weld it, and then apply anti-corrosion and anti-rust treatment followed by coating with anti-bronze fluorocarbon paint. It should be noted that after completing the edge sealing welding of steel hanger 1, it can be done according to... Figure 4 , Figure 5 , Figure 14 and Figure 15 The installation of the steel hanger rod with the outer wooden component 6 shown is mainly divided into top and bottom installation.

[0057] Finally, apply wood wax oil protective agent to the horizontal bar 2, the first diagonal bar 3, the second diagonal bar 4, and the outer wooden component 6.

[0058] Based on the above implementation details, a construction method for a steel-wood combined hanging decorative truss includes the following construction process:

[0059] Step 1: Fabricate steel hanger 1 according to the detailed design, and fix it to the roof steel beam by welding. The angle between the hanger and the roof beam is set according to the design requirements.

[0060] Step 2: Insert the crossbars 2 one by one into the steel hangers 1 from the bottom, with the insertion angle perpendicular to the steel hanger 1. The angle within the cross-sectional plane of the crossbar 2 is 45° between the four sides of the crossbar 2 and the steel hanger 1. The edges and corners are cut and trimmed according to the internal dimensions of the steel hanger 1. Insert the crossbars 2 into the steel hangers 1 sequentially, with a spacing of 509mm for a total of four crossbars.

[0061] Step 3: Two first diagonal braces 3 are placed on top, and two second diagonal braces 4 are placed below, enclosing the horizontal bar 2 in the middle. The first diagonal braces 3 and second diagonal braces 4 on the same plane are connected by mortise and tenon joints. The first diagonal braces 3 and second diagonal braces 4 on different planes are connected by concealed M16 through bolts 5. The two second diagonal braces 4 below the horizontal bar 2 form a 90° angle and are connected by concealed M16 through bolts 5. The two first diagonal braces 3 on the horizontal bar 2 form a 150° angle and are connected by concealed M16 through bolts 5. The angle between the first diagonal braces 3 and second diagonal braces 4 on the same plane is 60°, and the angle between the first diagonal braces 3 and second diagonal braces 4 on different planes is 30°, forming a cluster of braces.

[0062] Step 4: Each horizontal bar 2 has a cluster, which are placed at equal intervals to form a structural unit.

[0063] Step 5: The two units of the wooden truss structure are connected by side crossbars 2. The two units are connected along the direction of crossbars 2, and the crossbars 2 of the latter unit are inserted into the steel hangers 1 of the former unit. The angle is perpendicular to the steel hangers 1 and parallel to the crossbars of the former unit, with a spacing of 509mm, also in a four-cluster, four-bar configuration.

[0064] Step 6: After completion, install the steel hanger 1 and the outer wooden component 6.

[0065] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A construction method of a steel-wood combined hanging decorative truss, characterized in that, The suspended decorative truss includes steel hangers and a truss structure. The truss structure includes multiple clusters of members, each cluster of members including a horizontal bar, two first diagonal members, and two second diagonal members. The construction method includes the following steps: Step 1: Fabricate and secure the steel hanger rod; Step 2, Fix the crossbar: The crossbar spans between the steel hangers; Step 3: symmetrically insert the two first diagonal bars and the two second diagonal bars between a horizontal bar to form a cluster of bars; Step four: The rod groups of adjacent clusters form structural units; Step 5: Connect the structural units to form a truss structure; In step three, two first diagonal bars are symmetrically positioned above the horizontal bar at a 150° angle, and two second diagonal bars are symmetrically positioned below the horizontal bar at a 90° angle to form a cluster of bars; In step three, the first and second diagonal bars in the same plane are at a 60° angle and are connected by a mortise and tenon joint; the first and second diagonal bars in different planes are at a 30° angle and are connected by a concealed type of through bolt. The concealed connection of through bolts is as follows: the bolt is pushed into the solid wood of the rod, and after the bolt is installed and fixed, the groove is filled with structural adhesive and sealed with a wooden disc that is similar to the surrounding wood grain. In step four, the first and second diagonal braces on each horizontal bar are equidistantly arranged along the extension direction of the horizontal bar, and the horizontal bar spans the first and last two steel hangers to form a structural unit; In step five, two adjacent structural units are connected along the direction of the crossbar, and the crossbar of the latter unit is vertically inserted into the steel hanger of the former unit.

2. A steel-wood combined suspended decorative truss construction method according to claim 1, characterized in that, The steel hanger is provided with connecting lugs on both sides; In step one, the steel hanger is welded and fixed to the roof steel beam via connecting lugs.

3. A steel-wood combined suspended decorative truss construction method according to claim 1, characterized in that, The steel hanger rod has slots at equal intervals; In step two, the crossbars are inserted into the slots one by one from the bottom, and the crossbars are perpendicular to the steel hanger rods.

4. A steel-wood combined suspended decorative truss construction method according to claim 3, characterized in that, In step two, the inserted crossbar has a square cross-section, with all four sides of the cross-section at a 45° angle to the steel hanger.

5. A steel-wood combined suspended decorative truss construction method according to claim 3, characterized in that, The groove width on the steel hanger is greater than the diameter of the crossbar to allow for fine-tuning of the angle.

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