Steel structure supporting truss

Abstract

The invention relates to the technical field of steel structures, in particular to a steel structure supporting truss which comprises a plurality of mounting plate sets which are evenly arranged left and right, each mounting plate set comprises two mounting plates which are symmetrically arranged left and right, two chord members are jointly installed on the opposite sides of the two mounting plates in an up-down sliding mode, and each chord member comprises an upper chord and a lower chord. A web member mounting unit is mounted between the upper chord and the lower chord; by the adoption of the assembly type structural design, flexible assembly can be conducted according to different span requirements when a temporary building is built, meanwhile, the distance between the upper chord and the lower chord and the inclination angle of the web members can be rapidly adjusted, on-site assembly time is shortened on the premise that the overall structural strength is guaranteed, and the construction efficiency is improved. The applicability of the method and the construction efficiency of the temporary building are improved; and after the building is dismantled, the device can be conveniently dismantled and reassembled to meet the building requirement of a new temporary building, the repeated utilization rate of materials is increased, and resource waste and transformation cost are effectively avoided.

Description

Technical Field

[0001] This invention relates to the field of steel structure technology, specifically a steel structure support truss. Background Technology

[0002] Steel structure support trusses are widely used load-bearing components in building construction, bridge construction, temporary building erection, and large equipment installation and support. With their strong load-bearing capacity and good structural stability, they have become the core components for load transfer and structural support in various projects. Steel structure support trusses can effectively transfer the loads acting on them to the supporting structure below, thereby forming a stable and reliable overall building space. In scenarios such as prefabricated building construction, temporary foundation pit support, and temporary grandstand construction, they play an irreplaceable supporting role and are directly related to the safety and stability of engineering construction.

[0003] Existing steel structure support trusses mainly consist of upper chords, lower chords, and web members connecting them, forming the basic load-bearing structure. The connection between the web members and chords forms a triangular or lattice-type load-bearing system, thereby ensuring the structural strength of the truss. In the application scenario of temporary buildings, the steel structure support trusses used mainly have two construction modes. One is a rigid truss prefabricated in the factory according to the engineering design requirements, in which the chord spacing and the connection angle between the web members and the chords are fixed in the factory, and only overall assembly is required on site. The other is a truss temporarily erected according to the actual working conditions on site. After the construction personnel transport the prefabricated chords, web members, and other components to the site, they carry out on-site measurement, connection, and assembly operations to form the required truss.

[0004] The following problems exist with existing steel structure support trusses during temporary building construction: For factory-prefabricated rigid trusses, structural parameters such as chord spacing and web member angles are fixed, making them suitable only for specific temporary building needs. After the temporary building is dismantled, it is difficult to directly adapt to the different spans and load requirements of new temporary buildings, resulting in low reuse rates. Often, complex cutting, modification, and re-welding are required before they can be reused, leading to material waste and increased modification costs. Secondly, when temporarily assembling steel structure support trusses on-site, in order to ensure that the overall structural strength of the truss meets safety requirements, construction personnel must strictly control the distance between the upper and lower chords and the precise installation angle of the web members, resulting in a long on-site assembly time and reduced construction efficiency. Summary of the Invention

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a steel structure support truss, comprising multiple sets of mounting plate assemblies evenly arranged left and right, each mounting plate assembly including two mounting plates symmetrically arranged left and right, with two chord members slidingly mounted vertically on opposite sides of the two mounting plates, each chord including an upper chord and a lower chord, and a web member mounting unit installed between the upper and lower chords; adjacent mounting plates in two adjacent mounting plate assemblies are connected by bolts, and the mounting plates are slidably connected vertically to their corresponding chord members via connecting blocks; an adjusting member is installed between the leftmost mounting plate and the connecting block; two adjacent connecting blocks on the left and right are connected by plug-in connectors, and the adjusting member is controlled by... The connecting block and the plug-in component synchronously adjust the distance between the upper and lower chords; the web member installation unit includes an adjusting sleeve that is slidably sleeved on the outside of the chord, and multiple inclined and vertically arranged web member groups are installed between the two adjusting sleeves corresponding to the upper and lower chords; the adjusting sleeves on the upper chord and the lower chord to its left, and the adjusting sleeves on the lower chord and the upper chord to its left are also connected by web member groups, and the two web member groups are arranged crosswise to increase the structural stability when two adjacent mounting plate groups are connected; after the distance between the upper and lower chords is adjusted, the position of the adjusting sleeve is adjusted to ensure that the included angle between the web member group and the chord meets the design requirements and to ensure the overall structural stability.

[0006] Preferably, the mounting plate has a square hole in the middle, and the connecting block is slidably installed in the corresponding square hole. The adjusting component includes a synchronizing screw that is rotatably installed on the mounting plate, and the synchronizing screw is connected to its two corresponding connecting blocks by means of threaded engagement.

[0007] Preferably, the connector includes a plug rod, the left end of the connecting block located on the left side of the same mounting plate group is fixedly connected to the plug rod, and the right end of the connecting block located on the right side of the same mounting plate group is provided with a plug hole, which is used to cooperate with the plug rod to make the two adjacent connecting blocks on the left and right move up and down synchronously.

[0008] Preferably, the adjustment kit includes adjustment kit one, adjustment kit two, and adjustment kit three. Adjustment kit one on the upper string and adjustment kit one on the lower string, as well as adjustment kit two on the upper string and adjustment kit two on the lower string, are arranged alternately from left to right. Adjustment kit one on the upper string and adjustment kit two on the lower string, as well as adjustment kit two on the upper string and adjustment kit one on the lower string, are aligned vertically. Adjustment kit three on the upper string and adjustment kit three on the lower string are aligned vertically.

[0009] Preferably, the web member assembly includes web members, both ends of which are detachably mounted with connecting rods. The middle parts of adjusting sleeve one and adjusting sleeve two are fixedly connected to the connecting rods, and the web members connected between adjusting sleeve one and adjusting sleeve two, which are aligned vertically, are arranged vertically.

[0010] Preferably, the web rod groups connecting the two adjacent adjusting sleeves 1 corresponding to the upper and lower chords, and the web rod groups connecting the adjusting sleeve 1 corresponding to the upper chord and the adjusting sleeve 3 corresponding to the lower chord, are all arranged at an angle. The adjusting sleeve 1 on the left side of the lower chord and the upper chord are also connected by an angled web rod group. The web rod groups connecting the adjusting sleeve 3 on the upper chord and the lower chord to its right, and the adjusting sleeve 3 on the lower chord and the upper chord to its right, are all arranged at an angle and staggered back and forth.

[0011] Preferably, the connecting rods of the inclined web member group are hinged with connecting plates, and the adjusting sleeve one, adjusting sleeve three, upper chord and lower chord are fixedly connected to their corresponding connecting plates. Multiple locking holes are evenly arranged in the circumferential direction on the connecting rods and connecting plates.

[0012] Preferably, the upper and lower chords are provided with multiple threaded holes on opposite sides corresponding to the position of the adjusting sleeve, and the adjusting sleeve is provided with a round hole.

[0013] Preferably, a mating rod is fixedly installed at the rear end of the adjusting sleeve assembly, and two mounting plates corresponding to the same mounting plate assembly are fixedly installed on opposite sides. The mating plates are provided with inclined mating holes at the positions corresponding to the mating rods, and the mating rods are slidably installed in the corresponding mating holes.

[0014] Preferably, inclined reinforcing plates are fixedly installed at both ends of the upper and lower chords on opposite sides, and the reinforcing plates are connected to the corresponding mounting plates by bolts.

[0015] The beneficial effects of this invention are as follows: First, this invention adopts a modular structural design, which allows for flexible assembly according to different span requirements when building temporary buildings. At the same time, it can quickly adjust the distance between the upper and lower chords and the inclination angle of the web members. While ensuring the overall structural strength, it shortens the on-site assembly time, thereby increasing the applicability of this invention and the construction efficiency of temporary buildings. Moreover, after the building is demolished, this invention can be easily disassembled and reassembled to adapt to the new temporary building construction requirements, improving the reuse rate of materials and effectively avoiding resource waste and modification costs.

[0016] Second, this invention uses multiple sets of evenly distributed mounting plates arranged left and right. Construction workers can select the corresponding number of mounting plate sets for splicing and assembly according to the actual span. Adjacent mounting plates can be connected by bolts, making the assembly operation simple. When adjusting the distance between the upper and lower chords, the adjusting component on the leftmost mounting plate is manipulated to drive the corresponding connecting block to slide up and down. Under the action of the plug-in component, the distance between the upper and lower chords corresponding to all mounting plate sets can be adjusted synchronously, eliminating the need to measure and adjust each connection node individually. This simplifies the operation process, ensuring the consistency of the overall geometric dimensions of the invention and further ensuring assembly efficiency and overall structural strength.

[0017] Third, by setting a mating hole between the mating rod and the mating plate, when adjusting the distance between the upper and lower chords, the mating rod synchronously drives the adjusting sleeve to slide on the chord under the action of the mating hole, realizing automatic and rapid adjustment of the position of the adjusting sleeve. There is no need for manual measurement and adjustment of the position of the adjusting sleeve. According to the design requirements of the web member, the web member can be connected to the chord member at a suitable angle, further improving the on-site construction adjustment efficiency of the present invention.

[0018] Fourth, at the connection between two adjacent mounting plate groups, the present invention connects the upper chord with the adjusting sleeve on the lower chord to its left, and the lower chord with the adjusting sleeve on the upper chord to its left, through web members to form two cross-arranged web members, effectively enhancing the overall structural strength of the connection area between adjacent mounting plate groups; at the same time, by bolting the inclined reinforcing plate between the chord and the mounting plate, the geometric stability characteristics of the triangle are utilized to further enhance the structural strength of the connection position between the chord and the mounting plate, thereby further ensuring the stability of the overall structure. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0021] Figure 2 This is a front view of a portion of the structure of the present invention.

[0022] Figure 3 This is a three-dimensional structural diagram of the leftmost mounting plate of the present invention.

[0023] Figure 4 This is a cross-sectional view of the two bolted mounting plates of the present invention.

[0024] Figure 5 This is a cross-sectional view of the connecting block, the plug-in member, and the stringer of the present invention.

[0025] Figure 6 This is a cross-sectional view of the string and adjusting sleeve of the present invention.

[0026] Figure 7 This is a rear view of a single mounting plate assembly of the present invention.

[0027] Figure 8 This is the invention Figure 7 Enlarged view of point A.

[0028] Figure 9 This is a three-dimensional structural diagram of the adjusting sleeve and the mating rod of the present invention.

[0029] Reference numerals: 1. Mounting plate assembly; 11. Connecting block; 12. Adjusting component; 13. Insertion component; 14. Mating plate; 2. Chord; 21. Upper chord; 22. Lower chord; 23. Reinforcing plate; 3. Web member mounting unit; 31. Adjusting sleeve assembly; 311. Adjusting sleeve one; 312. Adjusting sleeve two; 313. Adjusting sleeve three; 314. Mating rod; 32. Web member assembly; 321. Web member; 322. Connecting rod; 323. Connecting plate. Detailed Implementation

[0030] The embodiments described below are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention. Where no specific technology or conditions are specified in the embodiments, they shall be performed in accordance with the technology or conditions described in the literature in the field or in accordance with the product manual.

[0031] See Figure 1 and Figure 3 A steel structure support truss includes multiple sets of mounting plate groups 1 evenly arranged on the left and right. Each mounting plate group 1 includes two mounting plates symmetrically arranged on the left and right. Two chords 2 are slidably mounted on the opposite sides of the two mounting plates. Each chord 2 includes an upper chord 21 and a lower chord 22. A web member mounting unit 3 is installed between the upper chord 21 and the lower chord 22. Multiple bolt holes are provided on the mounting plates symmetrically arranged on the top and bottom.

[0032] See Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The two adjacent mounting plates of the two adjacent mounting plate groups 1 are connected by bolts. The mounting plates are slidably connected to their corresponding chords 2 by connecting blocks 11. An adjusting member 12 is installed between the leftmost mounting plate and the connecting block 11. The two adjacent connecting blocks 11 on the left and right are connected by plug-in members 13. The web member mounting unit 3 includes an adjusting sleeve group 31 that is slidably sleeved on the outside of the chord 2. Multiple inclined and vertically arranged web member groups 32 are installed between the two adjusting sleeve groups 31 corresponding to the upper chord 21 and the lower chord 22. The adjusting sleeve groups 31 on the upper chord 21 and the lower chord 22 to its left, and the adjusting sleeve groups 31 on the lower chord 22 and the upper chord 21 to its left are also connected by web member groups 32, and the two web member groups 32 are arranged crosswise.

[0033] By assembling a certain number of mounting plate groups 1 together to adapt to the span requirements of different temporary buildings, the applicability of the invention is increased. After the building is demolished, the assembled mounting plate groups 1 are disassembled and reassembled according to the span requirements of the new temporary building to adapt to the new temporary building construction requirements, thereby improving the material reuse rate and effectively avoiding resource waste and modification costs. By controlling the adjusting component 12 to drive the corresponding connecting block 11 to slide up and down, and under the action of the plug-in component 13, the spacing between the upper and lower chords 22 corresponding to all mounting plate groups 1 can be adjusted synchronously without the need to measure and adjust each connecting node one by one, thereby ensuring assembly efficiency. The web member mounting unit 3 can quickly adjust the tilt angle of the web member group 32 to ensure that the included angle between the web member group 32 and the chord 2 meets the design requirements and ensures the overall structural stability.

[0034] Specifically, when a temporary structure needs to be erected, firstly, according to the span requirements of the temporary structure, select the corresponding number of mounting plate groups 1. Then, align the two adjacent mounting plates corresponding to two adjacent mounting plate groups 1, and bolt the two mounting plates together by inserting bolts into the bolt holes of the two mounting plates. Next, the construction personnel control the adjusting component 12 according to the erection requirements of the temporary structure. The adjusting component 12 drives the corresponding connecting block 11 to move synchronously. Under the action of the plug-in component 13, the spacing between the upper chord 21 and lower chord 22 corresponding to all mounting plate groups 1 can be adjusted synchronously. Finally, by adjusting the position of the adjusting sleeve group 31, multiple web member groups 32 are installed between the two adjusting sleeve groups 31 corresponding to the upper chord 21 and lower chord 22 in a vertical and inclined arrangement, so that the included angle between the web member group 32 and the chord 2 meets the design requirements.

[0035] Simultaneously, the upper chord 21 and the adjusting sleeve 31 on the lower chord 22 to its left are connected together by the web member group 32, and the lower chord 22 and the adjusting sleeve 31 on the upper chord 21 to its left are connected together, so that the connection between the two adjacent mounting plate groups 1 forms a stable cross-force structure, thereby increasing the structural strength of the connection between the two adjacent mounting plate groups 1. Finally, the assembled mounting plate group 1 is hoisted to the installation position by an external crane, and the leftmost mounting plate, the rightmost mounting plate and the corresponding external steel column are bolted together by bolt connection, thereby completing the construction of the temporary building truss.

[0036] When the temporary structure is demolished, the connection between the leftmost mounting plate, the rightmost mounting plate and their corresponding external steel column is first disconnected. Then, the assembled mounting plate group 1 is lifted by an external crane. Finally, the connection between two adjacent mounting plates is disconnected by construction workers to complete the dismantling of multiple mounting plate groups 1.

[0037] It should be noted that high-strength bolts are used to connect the two adjacent mounting plates to ensure that the connection nodes have sufficient shear strength and anti-slip capability when the invention is under load, preventing structural instability caused by bolt loosening or shear deformation. Similarly, high-strength bolts are also used to connect the mounting plates at both ends to the external steel columns, so that the load of the overall structure can be reliably transferred to the steel columns. The use of high-strength bolts can ensure that the connection surfaces fit tightly and maintain reliable force transmission performance when subjected to complex stress, avoiding safety hazards caused by insufficient strength of ordinary bolts.

[0038] To enable rapid and synchronized adjustment of the spacing between the upper chord 21 and lower chord 22 corresponding to all mounting plate assemblies 1, ensuring the consistency of the overall geometric dimensions of the invention and increasing construction efficiency, the invention adopts the following structure: (See attached diagram) Figure 3 and Figure 4 The mounting plate has a square hole in the middle, and the connecting block 11 is slidably installed in the corresponding square hole. The adjusting component 12 includes a synchronizing screw that is rotatably installed on the mounting plate, and the synchronizing screw is connected to its two corresponding connecting blocks 11 by means of threaded engagement. The plug-in component 13 includes a plug-in rod. The left end of the connecting block 11 located on the left side of the same mounting plate group 1 is fixedly connected to the plug-in rod, and the right end of the connecting block 11 located on the right side of the same mounting plate group 1 has a plug-in hole. The end of the plug-in rod is set to be frustoconical, so that the plug-in rod can be quickly inserted into its corresponding plug-in hole. The left end of the connecting block 11 corresponding to the synchronizing screw does not have a plug-in rod.

[0039] It should be noted that the synchronizing screw has two threaded sections arranged vertically and in opposite directions. The connecting block 11 is connected to the corresponding threaded section of the synchronizing screw through a threaded engagement. When the synchronizing screw is turned, the synchronizing screw drives the two corresponding connecting blocks 11 to move synchronously in and out through the threaded engagement.

[0040] Specifically, when multiple mounting plate groups 1 are assembled together, the connecting block 11 on the right side of the two bolted mounting plates can have its plug rod inserted into the plug hole of the connecting block 11 on the left side of the two bolted mounting plates. When it is necessary to adjust the distance between the upper chord 21 and the lower chord 22, the two corresponding connecting blocks 11 are moved synchronously by turning the synchronous screw. At the same time, under the action of the plug rod and the plug hole, the distance between the upper chord 21 and the lower chord 22 corresponding to all mounting plate groups 1 is adjusted synchronously.

[0041] To achieve automatic and rapid adjustment of the position of the adjusting sleeve 31, the present invention adopts the following structure, see reference. Figure 2The adjustment sleeve 31 includes adjustment sleeve one 311, adjustment sleeve two 312 and adjustment sleeve three 313. Adjustment sleeve one 311 on the upper string 21 and adjustment sleeve one 311 on the lower string 22, adjustment sleeve two 312 on the upper string 21 and adjustment sleeve two 312 on the lower string 22 are arranged alternately from left to right. Adjustment sleeve one 311 on the upper string 21 and adjustment sleeve two 312 on the lower string 22, adjustment sleeve two 312 on the upper string 21 and adjustment sleeve one 311 on the lower string 22 are aligned vertically. Adjustment sleeve three 313 on the upper string 21 and adjustment sleeve three 313 on the lower string 22 are aligned vertically.

[0042] See Figure 2 The web rod group 32 connecting the two adjacent adjusting sleeves 311 corresponding to the upper chord 21 and the lower chord 22, and the web rod group 32 connecting the adjusting sleeve 311 corresponding to the upper chord 21 and the adjusting sleeve 313 corresponding to the lower chord 22 are all arranged at an angle. The adjusting sleeve 311 on the left side of the lower chord 22 and the upper chord 21 are also connected by an angled web rod group 32. The web rod group 32 connecting the adjusting sleeve 313 on the upper chord 21 and the lower chord 22 on its right side, and the adjusting sleeve 313 on the lower chord 22 and the upper chord 21 on its right side are all arranged at an angle and are staggered back and forth. The web rod group 32 connecting the adjusting sleeve 311 and the adjusting sleeve 312 that are aligned vertically is arranged vertically.

[0043] See Figure 7 and Figure 9 The rear end of the adjusting sleeve 31 is fixedly installed with a mating rod 314. The two mounting plates corresponding to the same mounting plate group 1 are fixedly installed with mating plates 14 on opposite sides. The mating plates 14 are provided with inclined mating holes at the positions corresponding to the mating rod 314, and the mating rod 314 is slidably installed in the corresponding mating holes. The inclination angle of the mating holes increases from left to right.

[0044] Specifically, when adjusting the distance between the upper chord 21 and the lower chord 22, the upper chord 21 and the lower chord 22 drive their corresponding adjusting sleeves 31 to move synchronously. Under the action of the mating rod 314 and the mating hole of the mating plate 14, the adjusting sleeves 31 move synchronously left and right to adjust the left and right positions of the adjusting sleeves 31 synchronously. As the tilt angle of the mating hole increases from left to right, the moving distance of the first adjusting sleeve 311, the second adjusting sleeve 312 and the third adjusting sleeve 313 increases sequentially.

[0045] After the distance between the upper chord 21 and the lower chord 22 is adjusted, the workers install the web member assembly 32 at an angle between the adjusting sleeve 311 on the left side of the lower chord 22 and the upper chord 21, between two adjacent adjusting sleeves 311 corresponding to the upper chord 21 and the lower chord 22, and between the adjusting sleeve 311 corresponding to the upper chord 21 and the adjusting sleeve 313 corresponding to the lower chord 22. At the connection of two adjacent mounting plate assemblies 1, the workers install the web member assembly 32 at an angle between the adjusting sleeve 313 on the upper chord 21 and the lower chord 22 on its right, and between the adjusting sleeve 313 on the lower chord 22 and the upper chord 21 on its right. The two web member assemblies 32 are arranged in a staggered manner to form a stable cross-force structure. The workers then install the web member assembly 32 vertically between the adjusting sleeve 311 and the adjusting sleeve 312 that are aligned vertically, thereby completing the construction of the truss structure of the present invention.

[0046] Since adjusting sleeve 1 311, adjusting sleeve 2 312 and adjusting sleeve 3 313 can move synchronously when adjusting the distance between the upper chord 21 and the lower chord 22, after the inclined web member group 32 is installed, the included angle between the inclined web member group 32 and the chord 2 meets the design requirements, thereby ensuring the overall strength of the invention.

[0047] See Figure 2 and Figure 8 The web member assembly 32 includes a web member 321. Both ends of the web member 321 are bolted with connecting rods 322 via flanges. The middle parts of adjusting sleeve 1 311 and adjusting sleeve 2 312 are fixedly connected to the connecting rods 322. The connecting rods 322 of the inclined web member assembly 32 are hinged with connecting plates 323. Adjusting sleeve 1 311, adjusting sleeve 313, upper chord 21, and lower chord 22 are fixedly connected to their corresponding connecting plates 323. Multiple circumferentially evenly arranged locking holes are provided on the connecting rods 322 and the connecting plates 323.

[0048] After adjusting the distance between the upper chord 21 and the lower chord 22, a web member 321 of the corresponding length is selected and installed between the two connecting rods 322. Under the hinge action of the connecting plate 323 and the connecting rod 322, the tilt angle of the web member 321 can be adjusted. Adjusting sleeve 1 311, adjusting sleeve 2 312 and adjusting sleeve 313 can move synchronously when adjusting the distance between the upper chord 21 and the lower chord 22, so that the tilted web member 321 can be quickly installed on the connecting rod 322 and ensure that the included angle between the web member 321 and the chord 2 meets the design requirements. After the web member 321 is installed, multiple bolts are inserted into the locking holes of the connecting rod 322 and the connecting plate 323 in a circumferentially evenly distributed manner, and the connecting rod 322 and the connecting plate 323 are bolted together, thereby fixing the web member 321.

[0049] See Figure 6Multiple threaded holes are provided on the opposite sides of the upper chord 21 and lower chord 22 corresponding to the position of the adjusting sleeve 31, and a round hole is provided on the adjusting sleeve 31. After the web rod 321 is installed, the adjusting sleeve 31 and the corresponding chord rod 2 are bolted together by installing bolts into the round hole and the corresponding threaded hole.

[0050] See Figure 3 Both ends of the upper chord 21 and the lower chord 22 on opposite sides are fixedly equipped with inclined reinforcing plates 23. The reinforcing plates 23 are connected to the corresponding mounting plates by bolts. When the distance between the upper chord 21 and the lower chord 22 is adjusted, the upper chord 21 and the lower chord 22 drive their corresponding reinforcing plates 23 to move synchronously. After the position of the upper chord 21 and the lower chord 22 is adjusted, the reinforcing plates 23 and the mounting plates are bolted together, so that the chord 2, the mounting plate and the reinforcing plates 23 form a stable triangular structure, which further improves the structural strength of the connection between the chord 2 and the mounting plate, thereby further ensuring the stability of the overall structure.

[0051] In the modular assembly of this invention, firstly, a corresponding number of mounting plate groups 1 are selected according to the span requirements of the temporary building, and adjacent mounting plate groups 1 are spliced ​​together using bolts; then, the adjusting component 12 on the leftmost mounting plate is manually rotated, and under the linkage of the connecting block 11 and the plug-in component 13, the spacing between the upper chord 21 and lower chord 22 corresponding to all mounting plate groups 1 is synchronously and quickly adjusted; during the adjustment process, the mating rod 314 slides in the inclined mating hole of the mating plate 14, synchronously driving the adjusting sleeve group 31 to automatically slide to the designed position on the chord 2; then, the web member group 32 is manually installed between the adjusting sleeve groups 31 in a vertical and inclined manner to form a stable force-bearing structure. Meanwhile, at the connection of adjacent mounting plate groups 1, two cross-arranged web member groups 32 further enhance structural stability; finally, the chord member 2 and the mounting plate are connected by a triangular reinforcement plate 23; thus, with the help of modular splicing, synchronous adjustment, automatic positioning, cross-force and other multiple designs, the present invention can quickly adapt to the needs of temporary buildings with different spans, greatly shorten the on-site assembly time and improve construction efficiency; and after the building is demolished, it can be easily disassembled and reassembled to adapt to new construction requirements, improve the material reuse rate, and effectively avoid resource waste and modification costs; at the same time, the above adjustments only need to be adjusted once when the temporary building is erected, which is simple to operate and has good structural stability.

[0052] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0053] In embodiments of the present invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0054] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "connected," "installed," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, an integral connection, or a sliding connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0055] The embodiments described herein are preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made based on the structure, shape, and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A steel structure support truss, characterized in that, It includes multiple sets of mounting plate groups evenly arranged on the left and right. Each mounting plate group includes two mounting plates symmetrically arranged on the left and right. The two mounting plates slide up and down together on opposite sides to install two chords. The chords include an upper chord and a lower chord. A web member mounting unit is installed between the upper chord and the lower chord. The two adjacent mounting plates of the two adjacent mounting plate groups are connected by bolts. The mounting plates are slidably connected up and down by connecting blocks and their corresponding chords. An adjusting component is installed between the leftmost mounting plate and the connecting block. The two adjacent connecting blocks on the left and right are connected by plug-in components. The adjusting component controls the distance between the upper and lower chords to be adjusted synchronously through the connecting blocks and plug-in components. The web member installation unit includes an adjusting sleeve that is slidably sleeved on the outside of the chord member, and multiple inclined and vertically arranged web member groups are installed between the two adjusting sleeves corresponding to the upper and lower chords. The adjusting sleeves on the upper chord and the lower chord to its left, and the adjusting sleeves on the lower chord and the upper chord to its left, are also connected by the web rod group, and the two web rod groups are arranged in a cross manner to increase the structural stability when the two adjacent mounting plate groups are connected. After adjusting the distance between the upper and lower chords, adjust the position of the adjusting sleeve to ensure that the included angle between the web members and the chords meets the design requirements and ensures the overall structural stability.

2. The steel structure support truss according to claim 1, characterized in that, The mounting plate has a square hole in the middle, and the connecting block is slidably installed in the corresponding square hole. The adjusting component includes a synchronizing screw that is rotatably installed on the mounting plate, and the synchronizing screw is connected to its two corresponding connecting blocks by means of threaded engagement.

3. A steel structure support truss according to claim 1, characterized in that, The connector includes a plug rod. The left end of the connecting block located on the left side of the same mounting plate group is fixedly connected to the plug rod. The right end of the connecting block located on the right side of the same mounting plate group is provided with a plug hole. The plug hole is used to cooperate with the plug rod to make the two adjacent connecting blocks on the left and right move up and down synchronously.

4. A steel structure support truss according to claim 1, characterized in that, The adjustment kit includes adjustment kit one, adjustment kit two, and adjustment kit three. Adjustment kit one on the upper string and adjustment kit one on the lower string, as well as adjustment kit two on the upper string and adjustment kit two on the lower string, are arranged alternately from left to right. Adjustment kit one on the upper string and adjustment kit two on the lower string, as well as adjustment kit two on the upper string and adjustment kit one on the lower string, are aligned vertically. Adjustment kit three on the upper string and adjustment kit three on the lower string are aligned vertically.

5. A steel structure support truss according to claim 4, characterized in that, The web member assembly includes web members, both ends of which are detachably mounted with connecting rods. The middle parts of adjusting sleeve one and adjusting sleeve two are fixedly connected to the connecting rods. The web members connected between adjusting sleeve one and adjusting sleeve two, which are aligned vertically, are arranged vertically.

6. A steel structure support truss according to claim 5, characterized in that, The web rod groups connecting the two adjacent adjusting sleeves 1 corresponding to the upper and lower chords, and the web rod groups connecting the adjusting sleeve 1 corresponding to the upper chord and the adjusting sleeve 3 corresponding to the lower chord, are all arranged at an angle. The adjusting sleeve 1 on the left side of the lower chord and the upper chord are also connected by an angled web rod group. The web rod groups connecting the adjusting sleeve 3 on the upper chord and the lower chord to its right, and the adjusting sleeve 3 on the lower chord and the upper chord to its right, are all arranged at an angle and staggered back and forth.

7. A steel structure support truss according to claim 6, characterized in that, The connecting rods of the inclined web members are hinged with connecting plates. Adjusting sleeve one, adjusting sleeve three, upper chord, and lower chord are fixedly connected to their corresponding connecting plates. Multiple circumferentially evenly arranged locking holes are provided on the connecting rods and connecting plates.

8. A steel structure support truss according to claim 1, characterized in that, Multiple threaded holes are provided on the opposite sides of the upper and lower chords corresponding to the positions of the adjustment sleeves, and round holes are provided on the adjustment sleeves.

9. A steel structure support truss according to claim 1, characterized in that, The rear end of the adjusting sleeve is fixedly installed with a mating rod. The two mounting plates of the same mounting plate group are fixedly installed on opposite sides. The mating plates are provided with inclined mating holes at the positions corresponding to the mating rods, and the mating rods are slidably installed in the corresponding mating holes.

10. A steel structure support truss according to claim 1, characterized in that, The upper and lower chords are fixedly installed with inclined reinforcing plates at their left and right ends on opposite sides. The reinforcing plates are connected to the corresponding mounting plates by bolts.

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