Construction method of coal shed pipe truss located at end of gable

Abstract

The invention discloses a construction method of a coal shed pipe truss located at the end of a gable wall, which comprises the following steps of: 1, hoisting two trusses on the right side of a deformation joint to form a stable truss; secondly, a plurality of connecting cross beams are evenly arranged on the left side of the stable truss and above the deformation joint at intervals; thirdly, four fringe trusses are built on the left side of the deformation joint, and a hoisting foundation is formed; fourthly, the right side of the foundation truss serves as a second working face, and follow-up right side truss construction is carried out; meanwhile, a middle truss is hoisted on the left side of the deformation joint on the basis of the hoisting foundation, and the truss on the left side of the deformation joint is connected with the multiple connecting cross beams to form a foundation truss; fifthly, the left side of the foundation truss serves as a first working face, and follow-up left side truss construction is carried out; and 6, after construction of the follow-up left side truss and the follow-up right side truss is completed, the multiple connecting cross beams are dismantled. According to the method, the construction period is greatly shortened, the construction cost is reduced, and powerful guarantee is provided for on-time promotion of subsequent engineering.

Description

Technical Field

[0001] The invention relates to the technical field of gable steel truss construction, and in particular to a method for constructing a coal shed pipe truss located at a gable end. Background Art

[0002] The conventional construction method for coal shed pipe trusses typically begins at the gable end, requiring a strict construction sequence. Construction efforts must first be focused on building a spatially stable system in the gable. Only after this stage is completed can construction proceed to other areas, relying solely on a single work surface. The gable's complex structural design requires numerous connection points. Furthermore, on-site construction space is often very limited, making it difficult to operate large construction equipment and restricting worker movement. Due to the densely packed gable connection points, the construction team spent a significant amount of time on handling these connection points, severely impacting the overall construction progress.

[0003] This invention proposes a method for constructing coal shed pipe trusses at the gable end, taking a different approach by starting installation at the coal shed's expansion joint. Two trusses are first installed simultaneously on one side of the expansion joint, quickly forming a stable spatial framework. The trusses on the other side of the expansion joint are then installed, successfully creating two working surfaces. This innovative construction method significantly shortens the construction period compared to traditional methods, reducing construction costs and ensuring the timely completion of subsequent projects, demonstrating significant advantages. Summary of the Invention

[0004] The present invention aims to provide a method for constructing a coal shed pipe truss located at a gable end, which solves the time-consuming and labor-intensive problems encountered in the traditional construction of the coal shed pipe truss.

[0005] To achieve the above object, the present invention adopts the following technical solutions: A method for constructing a coal shed pipe truss located at a gable end, wherein the coal shed pipe truss is located at the gable end and comprises a left truss and a right truss, wherein a deformation joint is provided between the left truss and the right truss; The left truss and the right truss are both assembled from multiple trusses. The coal shed pipe trusses are constructed synchronously from the deformation joint to both sides, including the following steps: Step 1: Hoist two trusses on the right side of the expansion joint to form a stable truss; Step 2: Arrange multiple connecting beams evenly spaced on the left side of the stable truss and above the deformation joint; Step 3: Build four side trusses on the left side of the expansion joint to form the lifting foundation; Step 4: Using the right side of the foundation truss as the second working surface, carry out subsequent right truss construction; at the same time, using the hoisting foundation as the basis, hoist the middle truss on the left side of the deformation joint, and connect the truss on the left side of the deformation joint with multiple connecting beams to form a foundation truss; Step 5: Using the left side of the foundation truss as the first working surface, carry out subsequent left truss construction; Step 6: After the construction of the left truss and the right truss is completed, remove the multiple connecting beams.

[0006] Preferably, the step one is specifically as follows: first, two crawler cranes are set up at intervals on the right side of the deformation joint, i.e., the initial construction position, and then a supporting tire frame is set up. Four side trusses are built on the right side of the deformation joint based on the supporting tire frame. The four side trusses are set opposite to each other in pairs, and the two adjacent side trusses are connected by secondary trusses. The side trusses are then reinforced by guy ropes. Then, two crawler cranes are used to simultaneously lift two middle trusses, and the two ends of the middle trusses are connected to the two side trusses set opposite to each other. Without loosening the hook of the crawler crane, the secondary truss is connected between the two trusses to finally form a stable truss.

[0007] Preferably, the connecting beam includes a cross bar and two U-shaped connecting grooves, the two U-shaped connecting grooves are arranged at both ends of the cross bar, bolts are detachably installed at the notches of the U-shaped connecting grooves, and the U-shaped connecting grooves are detachably connected to the upper chord on one side of the truss.

[0008] Preferably, the step three is specifically as follows: first, a supporting frame is set up on the left side of the deformation joint, and two side trusses are built on the left side of the deformation joint based on the supporting frame. The two side trusses are arranged opposite to each other, and the two side trusses on the left side of the deformation joint are connected to the two side trusses on the right side of the deformation joint through a connecting beam. Then, the supporting frame is continued to be set up on the left side of the deformation joint, and two side trusses are continued to be built based on the supporting frame. The adjacent two side trusses are connected by a secondary truss to form a basic truss.

[0009] Preferably, the step four is specifically as follows: using a crawler crane to lift the middle truss, connecting the two ends of the middle truss with two side trusses that are oppositely arranged and adjacent to the left side of the deformation joint, and without loosening the hook of the crawler crane, connecting the first truss on the left side of the deformation joint to the connecting beam, forming a basic truss between the truss on the left side of the deformation joint and the two trusses on the right side of the deformation joint.

[0010] Preferably, in step four, the subsequent truss construction steps of the second working surface are: supporting the support frame, building two side trusses based on the support frame, using the crawler crane to lift the middle truss, connecting the two ends of the middle truss with the two oppositely arranged side trusses, and then lifting the middle truss and connecting the secondary trusses in turn, and repeating this operation until the construction of the right truss is completed.

[0011] Preferably, in step five, the subsequent truss construction steps for the first working surface are: use a crawler crane to lift the middle truss, connect the two ends of the middle truss with the two side trusses set opposite each other, and without loosening the hook of the crawler crane, connect the second truss on the left side of the deformation joint with the first truss on the left side of the deformation joint through a secondary truss, and then continue to support the support frame on the left side of the second truss on the left side of the deformation joint, and then build the two side trusses, lift the middle truss and connect the secondary trusses in turn, and repeat this operation until the construction of the left truss is completed.

[0012] In the present invention, the method starts the installation from the deformation joint, first builds a stable truss on the right side of the deformation joint, and then relies on the stable truss to continue to hoist the truss on the left side of the deformation joint to form a basic truss, with the left side of the basic truss as the first working surface, and the right side of the basic truss as the second working surface. The subsequent truss construction is carried out simultaneously on the first working surface and the second working surface. Compared with the traditional construction method, the construction period is greatly shortened, which not only reduces the construction cost, but also provides a strong guarantee for the timely advancement of the subsequent project, showing obvious advantages.

[0013] The stable truss is a stable frame structure formed by the simultaneous hoisting of two trusses on the right side of the expansion joint. Compared with the installation of the first truss in traditional truss construction, there is no need to build support columns, which simplifies the construction and shortens the construction period.

[0014] Because the left and right trusses were not connected by a secondary truss, a temporary connection, a connecting beam, was required at the expansion joint to open up another working surface. This temporary measure consisted of a 6.5m-long H-shaped steel beam with two brackets at each end, a detachable upper chord, and a clamping column. The connecting beam connected the truss on the left side of the expansion joint to the stable truss. Relying on the stable truss, the hoisting foundation was first constructed, followed by the basic truss. The U-shaped connecting groove in the connecting beam allowed for a certain amount of truss deformation, making it widely applicable. Furthermore, the connecting beam was detachable and could be used repeatedly, reducing costs.

[0015] By using the roadbed box as a horizontal support, a solid foundation can be provided for the auxiliary support at the bottom of the steel truss, effectively preventing settlement. The vertical support rod group is a truss structure with strong load-bearing capacity and good safety. The reinforced connectors can improve the support stability of the vertical support rod group and prevent overturning. The adjustment assembly can adjust the height of the connector to adapt to the support operation of the steel truss within a certain height range. It can also adjust the verticality of the steel truss during installation, facilitate the installation and adjustment of the steel truss, and improve the accuracy and efficiency of the construction operation. The auxiliary support assembly can be reused, which reduces construction costs, facilitates loading and unloading, and has high construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1This is a schematic diagram of the overall structure of the coal shed pipe truss of the present invention; Figure 2 This is a schematic diagram of the construction process of step 1 of the present invention; Figure 3 This is a schematic diagram showing the completion of step 1 of the present invention; Figure 4 This is a schematic diagram showing the completion of step three of the present invention; Figure 5 This is a schematic diagram of the connecting beam structure of the present invention; Figure 6 This is a schematic diagram showing the completion of step 4 of the present invention; Figure 7 It is a schematic diagram of the construction process of the present invention; Figure 8 This is a schematic diagram of the side truss structure of the present invention; Figure 9 This is another structural diagram of the side truss of the present invention; In the figure: 1. Left truss; 2. Right truss; 3. Truss; 4. Connecting beam; 5. Expansion joint; 30. Side truss; 31. Middle truss; 32. Secondary truss; 40. Crossbar; 41. U-shaped connecting groove; 01. Support column; 02. Steel truss; 03. Auxiliary support assembly; 04. Adjustment assembly; 05. Hoop; 030. Horizontal support part; 031. Vertical support rod group; 032. Reinforced connecting rod; 033. Connector; 040. Sleeve; 041. Adjustment screw; 310. Column; 311. Support member. DETAILED DESCRIPTION

[0017] The present invention will be further described below with reference to the accompanying drawings: like Figures 1 to 9 A method for constructing a coal shed pipe truss located at a gable end is shown. The coal shed pipe truss is located at the gable end and includes a left truss 1 and a right truss 2. A deformation joint 5 is provided between the left truss 1 and the right truss 2.

[0018] The left truss 1 and the right truss 2 are both assembled from multiple trusses 3. The coal shed pipe trusses are constructed synchronously from the deformation joint 5 to both sides, including the following steps: Step 1: Hoist two trusses 3 on the right side of the expansion joint 5 to form a stable truss; Specifically: First, two crawler cranes are set up at intervals on the right side of the deformation joint 5, i.e., the initial construction position, and then a supporting tire frame is set up. Relying on the supporting tire frame, four side trusses 30 are built on the right side of the deformation joint 5. The four side trusses 30 are set opposite to each other in pairs, and the two adjacent side trusses 30 are connected by a secondary truss 32. The side trusses 30 are then reinforced by guy ropes. Then, two crawler cranes are used to simultaneously lift two middle trusses 31, and the two ends of the middle trusses 31 are connected to the two oppositely arranged side trusses 30. Without loosening the hook of the crawler crane, the secondary truss 32 is connected between the two trusses to finally form a stable truss.

[0019] Step 2: Arrange multiple connecting beams 4 evenly spaced on the left side of the stable truss and above the deformation joint 5; The connecting beam 4 includes a cross bar 40 and two U-shaped connecting grooves 41. The two U-shaped connecting grooves 41 are arranged at both ends of the cross bar 40. Bolts are detachably installed at the notches of the U-shaped connecting grooves 41. The U-shaped connecting grooves 41 are detachably connected to the upper chord rod on one side of the truss 3.

[0020] Step 3: Build four side trusses 30 on the left side of the expansion joint 5 to form a hoisting foundation; Specifically: First, a supporting frame is set up on the left side of the deformation joint 5, and four side trusses 30 are built on the left side of the deformation joint 5 based on the supporting frame. The four side trusses 30 are arranged opposite to each other, and the two adjacent side trusses 30 are connected by a secondary truss 32. The two side trusses 30 adjacent to the deformation joint 5 and the two side trusses 30 adjacent to the right side of the deformation joint 5 are connected by a connecting beam 4 to form a basic truss.

[0021] First, a supporting frame is set up on the left side of the deformation joint 5, and two side trusses 30 are built on the left side of the deformation joint 5 based on the supporting frame. The two side trusses 30 are arranged opposite to each other, and the two side trusses 30 on the left side of the deformation joint 5 are connected to the two side trusses 30 on the right side of the deformation joint 5 through a connecting beam 4. Then, a supporting frame is continued to be set up on the left side of the deformation joint, and two more side trusses 30 are continued to be built based on the supporting frame. The adjacent two side trusses 30 are connected by a secondary truss 32 to form a basic truss.

[0022] Step 4: Based on the hoisting foundation, hoist the middle truss 31 on the left side of the deformation joint 5, and connect the truss 3 on the left side of the deformation joint 5 with the multiple connecting beams 4 to form a basic truss; Step 4: Use the right side of the foundation truss as the second working surface to carry out subsequent construction of the right truss 2; at the same time, use the hoisting foundation as the basis to hoist the middle truss 31 on the left side of the deformation joint 5, and connect the truss 3 on the left side of the deformation joint 5 with the multiple connecting beams 4 to form a foundation truss; The subsequent truss construction steps for the second working surface are: Set up a supporting frame, build two side trusses 30 based on the supporting frame, use a crawler crane to lift the middle truss 31, connect the two ends of the middle truss 31 to the two opposite side trusses 30, then lift the middle truss 31 and connect the secondary trusses 32 in turn, and repeat this operation until the construction of the right truss 2 is completed.

[0023] Specifically: Use a crawler crane to lift the middle truss 31, and connect the two ends of the middle truss 31 to the two side trusses 30 that are oppositely arranged and adjacent to the left side of the deformation joint 5. Without loosening the hook of the crawler crane, connect the first truss on the left side of the deformation joint 5 to the connecting beam 4. A basic truss is formed between the truss 3 on the left side of the deformation joint 5 and the two trusses 3 on the right side of the deformation joint 5.

[0024] Step 5: Take the left side of the foundation truss as the first working surface and carry out subsequent construction of the left truss 1; The subsequent truss construction steps for the first working surface are: Use a crawler crane to lift the middle truss 31, and connect the two ends of the middle truss 31 with the two oppositely arranged side trusses 30. Without loosening the hook of the crawler crane, connect the second truss 3 on the left side of the expansion joint 5 with the first truss 3 on the left side of the expansion joint 5 through the secondary truss 32. Then, continue to support the left side of the second truss 3 on the left side of the expansion joint 5. Then, build the two side trusses 30, lift the middle truss 31 and connect the secondary trusses 32 in turn. Repeat this operation until the construction of the left truss 1 is completed.

[0025] Step 6: After the construction of the left truss 1 and the right truss 2 is completed, the multiple connecting beams 4 are removed.

[0026] The side truss 30 consists of two support columns 01 and a steel truss 02 mounted on top of the columns. Specifically, the steel truss 02 is a vertical lattice structure. The bottom of the steel truss 02 is triangular in shape from a side view, with the side closest to the gable appearing suspended. Seismic ball-hinged supports are installed on top of the support columns 01, and the bottom of the side away from the gable is mounted on top of the two seismic ball-hinged supports.

[0027] An auxiliary support assembly 03 is provided on one side of the bottom of the steel truss 02. When the steel truss 02 is being installed, the auxiliary support assembly 03 is used to support the suspended end of the bottom of the steel truss 02 to ensure that the installation operation is carried out safely and stably.

[0028] Auxiliary support assembly 03 includes a horizontal support portion 030, a vertical support rod assembly 031, a reinforcing connecting rod 032, and a connecting piece 033. In this embodiment, horizontal support portion 030 is a roadbed box, and vertical support rod assembly 031 is fixed to the top of the roadbed box by welding or fasteners. Horizontal support portion 030 can also be a concrete pier or a steel frame pier.

[0029] The vertical support rod group 031 is set on the top of the horizontal support part 030. The vertical support rod group 031 includes two vertically arranged columns 310 and a support member 311 fixed between the two columns 310 by welding. The interval between the two columns 310 is adapted to the width of the steel truss 02.

[0030] The two ends of the reinforced connecting rod 032 are fixedly installed on the vertical support rod group 031 and the support column 01 respectively. The reinforced connecting rod 032 can connect the vertical support rod group 031 and the support column 01 into one, which can prevent the vertical support rod group 031 from tipping over during support operation and improve support stability.

[0031] One end of the connector 033 is fixedly mounted on the top of the vertical support rod group 031 by welding, and the other end of the connector 033 is fixedly connected to the steel truss 02 by welding, thereby supporting the steel truss 02.

[0032] In another embodiment, an adjustment component 04 is installed on the top of the vertical support rod group 031, and the connecting member 033 is installed on the adjustment component 04. The operator adjusts the height of the connecting member 033 through the adjustment component 04, which can not only adapt to the support operation of the steel truss 02 at different elevations, but also adjust the verticality of the steel truss 02 during installation, thus serving two purposes.

[0033] The adjustment component 04 includes a sleeve 040 and an adjustment screw 041 fixedly mounted on the top of the sleeve 040 by welding. The sleeve 040 is fixedly mounted on the top of the column 310. One end of the connecting member 033 is adjustably mounted on the adjustment screw 041 through a nut. The height of the connecting member 033 is adjusted by screwing the nut.

[0034] A clamp 05 is provided at one end of the connecting piece 033 , and the clamp 05 can be detachably mounted on the steel truss 02 , thereby avoiding the problem of inconvenience in disassembly caused by the welding connection method.

[0035] The above embodiments are merely some explanations of the concept and implementation of the present invention, and are not intended to limit the same. Under the concept of the present invention, technical solutions that have not been substantially changed are still within the scope of protection.

Claims

1. A method for constructing a coal shed pipe truss at the end of a gable wall, characterized by: The coal shed pipe truss is located at the end of the gable wall and includes a left truss (1) and a right truss (2), and a deformation joint (5) is provided between the left truss (1) and the right truss (2); The left truss (1) and the right truss (2) are both assembled from multiple trusses (3). The coal shed pipe trusses are synchronously constructed from the deformation joint (5) to both sides, including the following steps: Step 1: Hoist two trusses (3) on the right side of the deformation joint (5) to form a stable truss; Step 2: Arrange multiple connecting beams (4) at even intervals on the left side of the stable truss and above the deformation joint (5); Step 3: Build four side trusses (30) on the left side of the deformation joint (5) to form a hoisting foundation; Step 4: Using the right side of the foundation truss as the second working surface, carry out subsequent construction of the right truss (2); at the same time, using the hoisting foundation as a basis, hoist the middle truss (31) on the left side of the deformation joint (5), and connect the truss (3) on the left side of the deformation joint (5) with the plurality of connecting beams (4) to form a foundation truss; Step 5: Using the left side of the foundation truss as the first working surface, carry out subsequent construction of the left truss (1); Step 6: After the construction of the left truss (1) and the right truss (2) is completed, the multiple connecting beams (4) are removed.

2. The method for constructing a coal shed pipe truss at the gable end according to claim 1, characterized in that: The step 1 is specifically as follows: first, two crawler cranes are set at intervals on the right side of the deformation joint (5), i.e., the initial construction position, and then a support frame is set up. Four side trusses (30) are built on the right side of the deformation joint (5) based on the support frame. The four side trusses (30) are set opposite to each other in pairs. Two adjacent side trusses (30) are connected by a secondary truss (32). The side trusses (30) are then reinforced by a guy rope. Then, two crawler cranes are used to simultaneously hoist two middle trusses (31), and the two ends of the middle trusses (31) are connected to the two side trusses (30) set opposite to each other. When the crawler cranes are not loosened, the secondary truss (32) is connected between the two trusses to finally form a stable truss.

3. The method for constructing a coal shed pipe truss at a gable end according to claim 1, characterized in that: The connecting crossbeam (4) comprises a crossbar (40) and two U-shaped connecting grooves (41), the two U-shaped connecting grooves (41) being arranged at both ends of the crossbar (40), bolts being detachably mounted at the notches of the U-shaped connecting grooves (41), and the U-shaped connecting grooves (41) being detachably connected to the upper chord on one side of the truss (3).

4. The method for constructing a coal shed pipe truss at a gable end according to claim 3, characterized in that: The step three is specifically as follows: first, a support frame is set up on the left side of the deformation joint (5); two side trusses (30) are built on the left side of the deformation joint (5) based on the support frame; the two side trusses (30) are arranged opposite to each other; the two side trusses (30) on the left side of the deformation joint (5) are connected to the two side trusses (30) on the right side of the deformation joint (5) by a connecting beam (4); then, a support frame is further set up on the left side of the deformation joint; two side trusses (30) are further built based on the support frame; the two adjacent side trusses (30) are connected by a secondary truss (32) to form a basic truss.

5. The method for constructing a coal shed pipe truss at a gable end according to claim 4, characterized in that: The step 4 is specifically as follows: using a crawler crane to hoist the middle truss (31), connecting the two ends of the middle truss (31) to two side trusses (30) that are oppositely arranged and adjacent to the left side of the deformation joint (5), and without loosening the hook of the crawler crane, connecting the first truss on the left side of the deformation joint (5) to the connecting beam (4), so that a basic truss is formed between the truss (3) on the left side of the deformation joint (5) and the two trusses (3) on the right side of the deformation joint (5).

6. The method for constructing a coal shed pipe truss at a gable end according to claim 4, characterized in that: In step 4, the subsequent truss construction steps of the second working surface are as follows: supporting a support frame, building two side trusses (30) based on the support frame, using a crawler crane to hoist the middle truss (31), connecting the two ends of the middle truss (31) to the two side trusses (30) arranged oppositely, and then hoisting the middle truss (31) and connecting the secondary trusses (32) in sequence, and repeating this operation until the construction of the right truss (2) is completed.

7. The method for constructing a coal shed pipe truss at a gable end according to claim 5 or 6, characterized in that: The subsequent truss construction steps of the first working surface are as follows: using a crawler crane to hoist the middle truss (31), connecting the two ends of the middle truss (31) to the two side trusses (30) arranged opposite to each other, and without loosening the hook of the crawler crane, connecting the second truss (3) on the left side of the deformation joint (5) to the first truss (3) on the left side of the deformation joint (5) through the secondary truss (32), and then continuing to support the left side of the second truss (3) on the left side of the deformation joint (5), and then successively erecting the two side trusses (30), hoisting the middle truss (31) and connecting the secondary trusses (32), and repeating this operation until the construction of the left truss (1) is completed.

8. The method for constructing a coal shed pipe truss at a gable end according to claim 1, characterized in that: The truss (030) comprises two support columns (01) and a steel truss (02) mounted on the top of the support column (01); an auxiliary support assembly (03) is provided on one side of the bottom of the steel truss (02); the auxiliary support assembly (03) is used to support the suspended end of the bottom of the steel truss (02); the auxiliary support assembly (03) comprises a horizontal support portion (030), a vertical support rod group (031), a reinforcing connecting rod (032) and a connecting piece (033); the vertical support rod group (031) is provided on the horizontal support portion (030); the two ends of the reinforcing connecting rod (032) are respectively mounted on the vertical support rod group (031) and the support column (01); one end of the connecting piece (033) is fixedly provided on the top of the vertical support rod group (031), and the other end of the connecting piece (033) is fixedly connected to the steel truss (02).

9. The auxiliary support device for installing the gable facade lattice truss according to claim 8, characterized in that: The vertical support rod group (031) comprises two vertically arranged columns (310) and a support member (311) fixedly arranged between the two columns (310), and the interval between the two columns (310) is adapted to the width of the steel truss (02).

10. The auxiliary support device for installing the gable facade lattice truss according to claim 8, characterized in that: An adjustment assembly (04) is installed on the top of the vertical support rod group (031), the connecting member (033) is installed on the adjustment assembly (04), and the height of the connecting member (033) is adjusted by the adjustment assembly (04); the adjustment assembly (04) includes a sleeve (040) and an adjustment screw (041) fixedly installed on the sleeve (040), the sleeve (040) is installed on the column (310), and the connecting member (033) is adjustably installed on the adjustment screw (041) through a nut.

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