Truss supporting device and truss construction method

Abstract

The invention relates to the technical field of truss construction, in particular to a truss supporting device and a truss construction method, and the truss supporting device comprises a temporary support and a supporting platform. The supporting platform is arranged at the top of the temporary support, the supporting platform comprises a supporting cross beam, an adjusting pipe, supporting rods and a supporting column, the supporting rods are arranged at the two ends of the supporting cross beam respectively, and the supporting column is vertically arranged on the temporary support. According to the truss supporting device, through the arranged supporting cross beam, a mounting foundation is provided for the adjusting pipe and the supporting rod; the supporting rods are used for supporting the upper chord plane frame to prevent the sub-trusses from rolling over, so that the construction safety is improved; the adjusting pipes are used for supporting the lower chord plane frames of the sub-trusses, and the supporting columns are used for supporting the lower chord plane frames of the other adjacent sub-trusses, so that connection and fixation between the sub-trusses are facilitated, stable support is provided for connection of the sub-trusses, and construction efficiency and quality are improved.

Description

Technical Field

[0001] The present application relates to the technical field of truss construction, and in particular to a truss support device and a truss construction method. Background Art

[0002] With the continuous development of modern construction technology, long-span trusses have been widely used in large stadiums, bridges, airport terminals, and other building structures. Because long-span trusses are typically longer than 80 meters, they can cover large spaces, meeting the functional requirements of buildings while also presenting a good visual effect.

[0003] In the prior art, the construction of long-span trusses usually requires the use of supporting equipment. The specific construction process includes: first, the long-span trusses are hoisted to the predetermined installation location using lifting equipment; second, the trusses are temporarily supported by supporting equipment to maintain their stability and horizontality during the installation process; finally, after the trusses are fixed to the main structure, the supporting equipment is removed. However, during the removal of the supporting equipment, the long-span trusses are prone to deformation due to their own weight distribution and stress characteristics. This deformation not only increases the difficulty of removing the supporting equipment, but also may threaten the safety of construction workers, thereby reducing construction efficiency and safety. Summary of the Invention

[0004] The purpose of this application is to provide a truss support device and a truss construction method, wherein the truss support device can improve construction safety and construction quality.

[0005] To achieve the above objectives, in a first aspect, embodiments of the present application provide a truss support device, comprising: A temporary branch, wherein the temporary branch is arranged vertically; A support platform, the support platform is arranged on the top of the temporary support, the support platform includes a support beam, an adjustment tube, a support rod and a support column, the support beam is horizontally fixedly arranged on the top of the temporary support, one support rod is respectively provided on the two ends of the support beam, the adjustment tube is vertically arranged on the support beam, the top height of the support rod is greater than the top height of the adjustment tube, the support column is vertically arranged on the temporary support, and the top of the support column is flush with the top of the adjustment tube; A straight line passing through the adjusting tube and perpendicular to the supporting beam is a first straight line. The supporting columns are vertically arranged on the adjacent branches and at least one is distributed along the first straight line.

[0006] In one embodiment, the temporary support includes a top seat and a lattice frame, the lattice frame is vertically arranged, the top seat is arranged on the top of the lattice frame, and the supporting beams and the supporting columns are arranged on the top seat.

[0007] In one embodiment, the temporary support further includes a roadbed box, and the roadbed box is fixedly arranged at the bottom of the lattice frame.

[0008] In one embodiment, at least one supporting beam is provided. When the number of the supporting beams is two or more, the supporting beams are distributed in sequence along the vertical direction. Along the second direction, the length of the supporting beam gradually decreases, and the second direction is opposite to the direction of gravity.

[0009] In one embodiment, at least two support columns are provided, at least one support column is located on one side of the support beam, and at least one support column is located on the other side of the support beam.

[0010] In a second aspect, an embodiment of the present application further provides a truss construction method, the steps of which include: Divide the truss into N sub-trusses that are set separately; Along the length direction of the truss, the N sub-trusses are respectively a first sub-truss, a second sub-truss, ..., an Nth sub-truss, where N ≥ 3 and N is an integer; A support device is provided to support the ends of each sub-truss so that each sub-truss is maintained in the installation position. When hoisting each sub-truss onto the support device, the first sub-truss and the Nth sub-truss are hoisted first, and then the second sub-truss, ..., and the (N-1)th sub-truss are hoisted; The supporting device for supporting the end of the first sub-truss away from the second sub-truss and the end of the Nth sub-truss away from the (N-1)th sub-truss is a herringbone column; The supporting device for supporting the connection between adjacent sub-trusses is a truss supporting device as described in any of the above embodiments; After each sub-truss is hoisted onto the supporting equipment, the sub-truss is fixed to the supporting equipment, the adjacent sub-trusses are fixed, and the truss support device is removed.

[0011] In one embodiment, when dismantling the truss support device, the support columns are dismantled first, then the support rods, and finally the adjustment tubes.

[0012] In one embodiment, when removing the support column, the end of the support column close to the sub-truss is first removed by a preset length, and then the end of the support column away from the sub-truss is removed from the adjacent support.

[0013] In one embodiment, when removing the adjusting tube, a tube section of a preset height is gradually removed from one end of the adjusting tube close to the sub-truss.

[0014] In one embodiment, when removing a pipe section of a preset height, 3 / 4 of the circumferential wall of the pipe section is removed first, and then the remaining 1 / 4 of the circumferential wall is removed in at least two steps, and the removal speed of the 1 / 4 of the circumferential wall is slower than the removal speed of the 3 / 4 of the circumferential wall.

[0015] The truss support device provided in the embodiment of the present application provides an installation foundation for the adjustment tube and the support rod through the set support beam; the support rod is used to support both sides of the upper chord plane frame to prevent the sub-truss from tipping over, thereby improving construction safety; the adjustment tube is used to support the lower chord plane frame of the sub-truss, and the support column is used to support the lower chord plane frame of another adjacent sub-truss, thereby facilitating the connection and fixation between the sub-trusses, and providing stable support for the connection of the sub-trusses, thereby improving construction efficiency and quality.

[0016] Other features and advantages of the present application will be described in detail in the subsequent detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 A schematic structural diagram from one perspective of one embodiment of the truss support device provided by the present application; Figure 2 A schematic structural diagram of a support platform from one perspective of one embodiment of the truss support device provided in this application; Figure 3 A schematic diagram of the construction process of one embodiment of the truss support device provided by this application from two perspectives; Figure 4 A schematic diagram of another construction process from two perspectives of one embodiment of the truss support device provided by the present application; Figure 5 A schematic diagram of the construction process of one embodiment of the adjustment tube of the truss support device provided in this application; Figure 6 This is a structural schematic diagram of one embodiment of a truss from one perspective.

[0019] icon: 100-truss; 110-first sub-truss; 120-second sub-truss; 130-third sub-truss; 140-upper chord plane frame; 150-middle support connecting frame; 160-lower chord plane frame; 200-Herringbone column; 300-truss support device; 310-temporary support; 312-top seat; 314-lattice frame; 316-roadbed box; 320-support platform; 322-support beam; 324-adjusting tube; 326-support rod; 328-support column; 400-First straight line. DETAILED DESCRIPTION

[0020] To make the objectives, technical solutions, and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all of the embodiments. Generally, the components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0021] In the description of this application, it should be noted that the terms "inner" and "outer" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or the orientations or positional relationships in which the product of this application is typically placed when in use. These terms are intended solely to facilitate the description of this application and simplify the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first" and "second" and the like are used solely for distinction and should not be construed as indicating or implying relative importance.

[0022] It should also be noted that, in the description of this application, unless otherwise expressly specified or limited, the terms "disposed" and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to direct connections, indirect connections through an intermediate medium, or internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0023] The embodiments of the present application provide a truss support device 300 and a truss construction method, which can be particularly applied to the construction of an inverted trapezoidal truss 100 . Of course, it can also be used for construction operations of other truss 100 structures, such as an inverted triangular truss 100 .

[0024] like Figure 6 As shown, the inverted trapezoidal truss 100 has an inverted trapezoidal cross-section in a direction perpendicular to its length, and includes an upper chord plane frame 140, an intermediate support connecting frame 150, and a lower chord plane frame 160. The upper chord plane frame 140 and the lower chord plane frame 160 are connected by the intermediate support connecting frame 150. The following describes the technical solution of the present application using the inverted trapezoidal truss 100 as an example, but this does not limit the technical solution and protection scope of the present application.

[0025] During the construction of the truss 100, the truss construction method provided in the embodiment of the present application is used to divide the truss 100 into multiple sub-trusses for segmented hoisting, thereby reducing the weight of a single hoisting and improving construction safety. In addition, the truss construction method provided in the embodiment of the present application is used to segmentally hoist the truss 100, which can also reduce construction difficulty and improve construction efficiency.

[0026] During the construction of the truss 100, the truss support device 300 provided in the embodiment of the present application can support each sub-truss so that each sub-truss remains in the installation position. Then, the construction personnel can fix the sub-trusses when the positions of each sub-truss are stable, thereby reducing the construction difficulty and improving the construction safety and quality. In addition, the use of this truss construction method can also improve the construction safety in the final stage of the project. After the truss 100 is fixed, the truss support device 300 needs to be removed. When the truss 100 loses the support of the truss support device 300, it will deform. The use of this truss construction method to gradually disassemble the truss support device 300 can control the deformation rate of the truss 100, reduce the inertia force of the truss 100 during the deformation process, and improve the safety and quality of the final stage of the project.

[0027] In a first aspect, an embodiment of the present application provides a truss support device 300 , which includes a temporary support 310 and a support platform 320 .

[0028] like Figure 1 As shown, the temporary support 310 is vertically arranged; illustratively, the temporary support 310 is vertically arranged on the ground or other fixed foundations, such as foundations, pedestals, etc. The technical solution of the present application is described below using the temporary support 310 vertically arranged on the ground as an example.

[0029] Exemplarily, the temporary branch 310 extends in the vertical direction, and therefore, the two ends of the temporary branch 310 are the top and the bottom, respectively. The bottom is the end of the temporary branch 310 close to the ground, and the top is the other end of the temporary branch 310. The height of the top is greater than the height of the bottom.

[0030] like Figure 1 As shown, the support platform 320 is set on the top of the adjacent support 310; Figure 1 and Figure 2 As shown, the support platform 320 includes a support beam 322, an adjustment tube 324, a support rod 326 and a support column 328; the top of the temporary support 310 provides a horizontal installation base for the support beam 322, and the support beam 322 is horizontally fixed on the top of the temporary support 310, and the fixing method is, for example, welding, bolt connection, clamping or riveting.

[0031] like Figure 2As shown, the support beam 322 provides a mounting base for the support rod 326 and the adjustment tube 324 , and in some embodiments, the heights of the support rod 326 and the adjustment tube 324 can be adjusted by stacking multiple layers of support beams 322 .

[0032] A support rod 326 is respectively provided on both ends of the support beam 322; illustratively, the support rod 326 is fixed on the support beam 322 by welding, bolt connection or clamping.

[0033] For example, a support rod 326 is vertically provided on the support beam 322, and the support rod 326 is used to support the upper chord plane of the truss 100. Two support rods 326 are provided, and the two support rods 326 are supported on both sides of the upper chord plane frame 140 respectively.

[0034] like Figure 2 As shown, the adjustment tube 324 is vertically arranged on the supporting beam 322.

[0035] Exemplarily, the adjustment tube 324 is fixedly disposed on the supporting beam 322 , and the fixing method is, for example, welding, clamping or bolt connection.

[0036] Exemplarily, the adjustment tube 324 is used to support the lower chord plane frame 160. The top height of the support rod 326 is greater than the top height of the adjustment tube 324.

[0037] For example, one adjustment tube 324 is provided, and the diameter of the adjustment tube 324 is greater than or equal to the width of the lower chord plane frame 160, so that the adjustment tube 324 can provide a mounting base for the lower chord plane frame 160. However, in another embodiment, as Figure 2 As shown, two adjusting tubes 324 are provided, one adjusting tube 324 is supported on one side of the lower chord plane, and the other adjusting tube 324 is supported on the other side of the lower chord plane.

[0038] like Figure 2 As shown, the support column 328 is vertically arranged on the temporary support 310; illustratively, the truss 100 is hoisted in sections, the adjustment tube 324 is used to support the lower chord plane frame 160 of one sub-truss, and the support column 328 is used to support the lower chord plane frame 160 of another adjacent sub-truss.

[0039] like Figure 2 As shown, the top of the support column 328 is flush with the top of the adjustment tube 324.

[0040] For example, one support column 328 is provided, and the diameter of the support column 328 is greater than or equal to the width of the lower chord plane frame 160, so that the support column 328 can provide a mounting base for the lower chord plane frame 160. However, in another embodiment, as Figure 2As shown, two support columns 328 are provided, one support column 328 is supported on one side of the lower chord plane, and the other support column 328 is supported on the other side of the lower chord plane.

[0041] A straight line passing through the adjustment tube 324 and perpendicular to the support beam 322 is a first straight line 400 . The support columns 328 are vertically disposed on the adjacent support 310 and at least one support column 328 is distributed along the first straight line 400 .

[0042] In one embodiment, Figure 2 As shown, two adjusting tubes 324 are provided, and two supporting columns 328 are provided accordingly. The two supporting columns 328 are located on the same side of the supporting beam 322 .

[0043] Exemplarily, the support beam 322 , the support rod 326 and the support column 328 adopt an I-beam structure.

[0044] In the present application, a support beam 322 is provided to provide an installation basis for the adjustment tube 324 and the support rod 326; the support rod 326 is used to support the upper chord plane frame 140 to prevent the sub-truss from tipping over and improve construction safety; the adjustment tube 324 is used to support the lower chord plane frame 160 of the sub-truss, and the support column 328 is used to support the lower chord plane frame 160 of another adjacent sub-truss, thereby facilitating the connection and fixation between the sub-trusses, and providing stable support for the connection of the sub-trusses, thereby improving construction efficiency and quality.

[0045] like Figure 1 As shown, in one embodiment, the temporary support 310 includes a top seat 312 and a lattice frame 314, and the lattice frame 314 is vertically arranged.

[0046] Exemplarily, the lattice frame 314 includes columns, horizontal struts and diagonal struts. The lattice frame 314 is a quadrangular column frame, with four vertical columns. Adjacent columns are connected by horizontally arranged horizontal struts, and the horizontal struts are connected by diagonal struts.

[0047] The lattice frame 314 is arranged vertically and has a top and a bottom. The bottom of the lattice frame 314 is fixed, and the top of the lattice frame 314 provides an installation base for the top seat 312. The top seat 312 is fixed to the top of the lattice frame 314 by welding, clamping or bolting.

[0048] The top base 312 provides a horizontal installation foundation for the support beams 322 and the support columns 328 , and the support beams 322 and the support columns 328 are disposed on the top base 312 .

[0049] Exemplarily, the top seat 312 is a U-shaped frame structure formed by splicing I-beams.

[0050] In order to provide a stable installation foundation for the lattice frame 314, as Figure 1As shown, in one embodiment, the temporary support 310 further includes a roadbed box 316 , which is fixedly disposed at the bottom of the lattice frame 314 .

[0051] Exemplarily, the columns are fixed on the roadbed box 316 by welding, bolt connection or clamping.

[0052] For example, the roadbed box 316 is fixedly mounted on the ground. The roadbed box 316 has a fixed end surface and a supporting end surface. The fixed end surface is fixed to the ground, while the supporting end surface is horizontal, providing a horizontal mounting base for the columns. During construction, ground conditions are complex and varied, and may be uneven. Whether the ground is flat or steep, the roadbed box 316, through its horizontal supporting end surface, can maintain the vertical mounting of the columns of the lattice frame 314, preventing tilting or deformation of the lattice frame 314 due to uneven ground, thereby improving the stability of the entire truss support device 300.

[0053] In one embodiment, at least one supporting beam 322 is provided.

[0054] For example, Figure 1 and Figure 2 As shown, one supporting beam 322 is provided.

[0055] In another embodiment, more than two supporting beams 322 are provided, and the supporting beams 322 are distributed in sequence along the vertical direction. The length of the supporting beams 322 gradually decreases along the second direction, and the second direction is opposite to the direction of gravity.

[0056] In one embodiment, three support beams 322 are provided. Along the second direction, the three support beams 322 are respectively a first beam, a second beam, and a third beam. The first beam is mounted on the top base 312, the second beam is mounted on the first beam, and the third beam is mounted on the second beam. The adjustment tube 324 and the support rod 326 are mounted on the third beam. The first, second, and third beams are parallel. The length of the first beam is greater than that of the second beam, and the length of the second beam is greater than that of the third beam. This reduces the burden on the third beam, making the overall structure of the support platform 320 more evenly stressed. It also shifts the center of the support platform 320 downward, improving stability. While reducing the overall weight of the support platform 320, the contact area between the support platform 320 (the third beam) and the top base 312 is maintained, improving wind resistance and anti-overturning capabilities.

[0057] Of course, it should be understood that the supporting beams 322 may be provided in other quantities, for example, two, four or five, etc., and the arrangement thereof is similar to that of the above embodiment, which will not be repeated here.

[0058] like Figure 2As shown, in one embodiment, at least two support columns 328 are provided, at least one support column 328 is located on one side of the support beam 322 , and at least one support column 328 is located on the other side of the support beam 322 .

[0059] For example, the support column 328 can not only be used to support another adjacent sub-truss, but can also support the same sub-truss together with the adjustment tube 324.

[0060] Exemplarily, two adjusting tubes 324 are provided and four supporting columns 328 are provided accordingly. Two supporting columns 328 are located on one side of the supporting beam 322 to support another adjacent sub-truss, and the other two supporting columns 328 are located on the other side of the supporting beam 322 to support the same sub-truss together with the adjusting tube 324.

[0061] Of course, the number of support columns 328 can also be set to other numbers, for example, three, five, six or seven.

[0062] In a second aspect, an embodiment of the present application provides a truss construction method, the steps of which include: S100: Divide the truss 100 into N separately arranged sub-trusses.

[0063] S200: Along the length direction of the truss 100, the N sub-trusses are respectively the first sub-truss 110, the second sub-truss 120, ..., the Nth sub-truss, where N ≥ 3 and N is an integer. For ease of understanding, the method is described below using N = 3 as an example. When the truss 100 is spliced, it is spliced into three sections of sub-trusses that are separately arranged, and the three sub-trusses are independent of each other; assuming that a truss 100 is 84 meters long, the length of the three sub-trusses is 28 meters respectively; the three sub-trusses are respectively the first sub-truss 110, the second sub-truss 120, and the third sub-truss 130.

[0064] S300: Setting support equipment to support the ends of each sub-truss so that each sub-truss remains in the installation position. When hoisting each sub-truss onto the support equipment, Figure 3 As shown, the first sub-truss 110 and the Nth sub-truss are hoisted first; then, as shown Figure 4 As shown, the second sub-truss 120, ..., and the N-1th sub-truss are hoisted.

[0065] During the implementation process, if Figure 3 As shown, first hoist the first sub-truss 110 and the third sub-truss 130; then, as shown in FIG. Figure 4 As shown, the second sub-truss 120 is hoisted. During hoisting, each sub-truss can be hoisted using hoisting equipment, such as a crane, a gantry crane, etc.

[0066] S400: The supporting device for supporting the end of the first sub-truss 110 away from the second sub-truss 120 and the end of the Nth sub-truss away from the N-1th sub-truss is a herringbone column 200.

[0067] For example, during implementation, Figure 3 or Figure 4 As shown, a herringbone column 200 is used to support the end of the first sub-truss 110 away from the second sub-truss 120, and the end of the first sub-truss 110 away from the second sub-truss 120 is fixedly installed on the herringbone column 200, and the fixing method is, for example, welding, bolt connection or clamping.

[0068] For example, during implementation, Figure 3 or Figure 4 As shown, a herringbone column 200 is used to support the end of the third sub-truss 130 away from the second sub-truss 120, and the end of the third sub-truss 130 away from the second sub-truss 120 is fixedly installed on the herringbone column 200, and the fixing method is, for example, welding, bolt connection or clamping.

[0069] S500: The supporting device for supporting the connection between adjacent sub-trusses is the truss supporting device 300 of any of the above embodiments.

[0070] For example, during implementation, Figure 4 As shown, two truss support devices 300 are provided, namely a first device and a second device. The first device is used to support the first sub-truss 110 and the second sub-truss 120, and the second device is used to support the second sub-truss 120 and the third sub-truss 130. The adjustment tube 324 of the first device supports the lower chord plane frame 160 of the first sub-truss 110. The support rod 326 of the first device is used to support both sides of the upper chord plane frame 140 of the first sub-truss 110. The support column 328 of the first device is used to support the lower chord plane frame 160 of the second sub-truss 120.

[0071] The adjusting tube 324 of the second device supports the lower chord plane frame 160 of the third sub-truss 130, the supporting rod 326 of the second device supports both sides of the upper chord plane frame 140 of the third sub-truss 130, and the supporting column 328 of the second device is used to support the lower chord plane frame 160 of the second sub-truss 120.

[0072] Of course, the support schemes of the adjustment tube 324, the support rod 326 and the support column 328 in the first and second devices are only examples, and other support schemes can also be used, for example: The adjustment tubes 324 of the first device support the bottom chord planar frame 160 of the second sub-truss 120. The support rods 326 of the first device support the top chord planar frame 140 of the second sub-truss 120. The support columns 328 of the first device support the bottom chord planar frame 160 of the first sub-truss 110. The adjustment tubes 324 of the second device support the bottom chord planar frame 160 of the second sub-truss 120. The support rods 326 of the second device support the top chord planar frame 140 of the second sub-truss 120. The support columns 328 of the second device support the bottom chord planar frame 160 of the third sub-truss 130.

[0073] It should be understood that the above embodiment process is only an example and should not be regarded as limiting the present application.

[0074] S600: After each sub-truss is hoisted onto the supporting device, the sub-truss is fixed to the supporting device, and then adjacent sub-trusses are fixed, and then the truss supporting device 300 is removed.

[0075] The sub-truss and the supporting equipment are fixed by welding, clamping or bolting.

[0076] like Figure 2 As shown, in one embodiment, when the truss support device 300 is dismantled in step S600 , the support column 328 is first dismantled, then the support rod 326 is dismantled, and finally the adjustment tube 324 is dismantled.

[0077] Support columns 328 are removed before support rods 326. After support columns 328 are removed, the pressure of truss 100 can be temporarily borne by adjustment tubes 324. At the same time, support rods 326 can maintain the stability of truss 100, preventing it from tipping over and improving construction safety. Adjustment tubes 324 are installed on support beams 322 and are removed last, facilitating dismantling.

[0078] In one embodiment, when removing the support column 328 , first remove the end of the support column 328 close to the sub-truss by a preset length; then remove the end of the support column 328 away from the sub-truss from the temporary support 310 .

[0079] For example, the support column 328 is removed by cutting or grinding.

[0080] Exemplarily, the support rod 326 is removed by cutting or grinding.

[0081] For example, the preset length can be set according to actual needs, such as 2 cm, 3 cm or other values.

[0082] In one embodiment, when removing the adjustment tube 324 , a tube section of a preset height is gradually removed from the end of the adjustment tube 324 close to the sub-truss.

[0083] Exemplarily, the adjusting tube 324 is removed by cutting or grinding.

[0084] Exemplarily, the preset height is, for example, 2 cm, 3 cm or other values.

[0085] Exemplarily, during the implementation process, 3 cm is first removed from the end of the adjusting tube 324 close to the sub-truss, and the adjusting tube 324 and the truss 100 are released from support; the truss 100 is deformed after losing support and is pressed again on the adjusting tube 324, and then 3 cm is removed from the adjusting tube 324. The truss 100 is deformed again after losing support and is pressed again on the adjusting tube 324. The adjusting tube 324 is removed cyclically in the above steps to gradually release the deformation of the truss 100; since the truss 100 has a large weight, if the deformation of the truss 100 is released all at once, the inertia of the truss 100 is large, and it is easy to deform more, resulting in structural failure of the truss 100. Therefore, the gradual release of deformation can prevent the truss 100 from directly reaching the final deformation in a short time, thereby improving the construction stability and safety of the truss 100.

[0086] like Figure 5 As shown, in one embodiment, when removing a pipe section of a preset height, 3 / 4 of the circumferential wall of the pipe section is removed first, and then the remaining 1 / 4 of the circumferential wall is removed in at least two steps, and the removal speed of 1 / 4 of the circumferential wall is lower than the removal speed of 3 / 4 of the circumferential wall.

[0087] For example, assume that the regulating tube 324 needs to be removed in two steps, with the height of each section being 3 cm. The two sections are the first section and the second section. First, ¾ of the circumference of the first section is removed, and then the remaining ¼ is removed in at least two steps. The removal rate of the ¼ is slower than the removal rate of the remaining ¾. Then, ¾ of the circumference of the second section is removed, and then the remaining ¼ is removed in at least two steps. The removal rate of the remaining ¼ is slower than the removal rate of the remaining ¾.

[0088] Compared with the traditional direct demolition method, the demolition method of the present application reduces the support of equipment such as jacks on the structure, reduces the difficulty of operation, and increases the operating space for construction personnel. At the same time, the segmented circular cutting can also effectively prevent the structure of the truss 100 from falling directly under the action of constant load after losing support.

[0089] It should be noted that, unless there is any conflict, the features in the embodiments of this application can be combined with each other.

[0090] The above description is merely a preferred embodiment of the present application and is not intended to limit the present application. Various modifications and variations are possible for those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. Truss support device, characterized in that, include: A temporary branch (310), wherein the temporary branch (310) is vertically arranged; A support platform (320), wherein the support platform (320) is arranged on the top of the adjacent support (310), and the support platform (320) includes a support beam (322), an adjustment tube (324), a support rod (326) and a support column (328). The support beam (322) is fixedly arranged horizontally on the top of the adjacent support (310), and one support rod (326) is respectively arranged on the two ends of the support beam (322). The adjustment tube (324) is vertically arranged on the support beam (322), and the top height of the support rod (326) is greater than the top height of the adjustment tube (324). The support column (328) is vertically arranged on the adjacent support (310), and the top of the support column (328) is flush with the top of the adjustment tube (324); A straight line passing through the regulating tube (324) and perpendicular to the supporting beam (322) is a first straight line (400), and the supporting columns (328) are vertically arranged on the adjacent branch (310) and at least one is distributed along the first straight line (400).

2. The truss support device according to claim 1, characterized in that: The temporary support (310) includes a top seat (312) and a lattice frame (314), wherein the lattice frame (314) is vertically arranged, the top seat (312) is arranged on the top of the lattice frame (314), and the supporting beam (322) and the supporting column (328) are arranged on the top seat (312).

3. The truss support device according to claim 2, characterized in that: The temporary support (310) further includes a roadbed box (316), and the roadbed box (316) is fixedly arranged at the bottom of the lattice frame (314).

4. The truss support device according to claim 1, wherein: At least one supporting beam (322) is provided. When the number of the supporting beams (322) is two or more, the supporting beams (322) are sequentially distributed along the vertical direction. Along the second direction, the length of the supporting beam (322) gradually decreases, and the second direction is opposite to the direction of gravity.

5. The truss support device according to claim 1, characterized in that: At least two support columns (328) are provided, at least one support column (328) is located on one side of the support beam (322), and at least one support column (328) is located on the other side of the support beam (322).

6. Truss construction method, characterized in that, The steps include: Dividing the truss (100) into N sub-trusses arranged separately; Along the length direction of the truss (100), the N sub-trusses are respectively a first sub-truss (110), a second sub-truss (120), ..., an Nth sub-truss, wherein N ≥ 3, and N is an integer; A support device is provided for supporting the ends of each sub-truss so that each sub-truss is maintained at an installation position. When hoisting each sub-truss onto the support device, the first sub-truss (110) and the Nth sub-truss are hoisted first, and then the second sub-truss (120), ..., and the (N-1)th sub-truss are hoisted; The supporting device for supporting an end of the first sub-truss (110) away from the second sub-truss (120) and an end of the Nth sub-truss away from the (N-1)th sub-truss is a herringbone column (200); The supporting device for supporting the connection between adjacent sub-trusses is a truss supporting device (300) according to any one of claims 1 to 5; After each sub-truss is hoisted onto the supporting device, the sub-truss is fixed to the supporting device, adjacent sub-trusses are fixed, and the truss supporting device (300) is removed.

7. The truss construction method according to claim 6, characterized in that: When dismantling the truss support device (300), the support column (328) is first dismantled, then the support rod (326), and finally the adjustment tube (324).

8. The truss construction method according to claim 7, characterized in that: When removing the support column (328), first remove the preset length of the end of the support column (328) close to the sub-truss, and then remove the end of the support column (328) away from the sub-truss from the temporary support (310).

9. The truss construction method according to claim 7, characterized in that: When removing the adjustment tube (324), a tube section of a preset height is gradually removed from one end of the adjustment tube (324) close to the sub-truss.

10. The truss construction method according to claim 9, characterized in that: When removing a pipe section of a preset height, first remove 3 / 4 of the circumference of the pipe section, and then remove the remaining 1 / 4 of the circumference in at least two times, with the removal speed of the 1 / 4 circumference being slower than that of the 3 / 4 circumference.

Images