Construction method of coal shed pipe truss at gable end

Abstract

The application discloses a coal shed pipe truss construction method at the end of a gable, comprising the following steps: step one, hoisting two trusses at the right side of a deformation joint to form a stable truss; step two, uniformly and interval arranging multiple connecting beams at the left side of the stable truss and above the deformation joint; step three, erecting four edge trusses at the left side of the deformation joint to form a hoisting foundation; step four, taking the right side of the foundation truss as a second operation surface to carry out subsequent right side truss construction; meanwhile, hoisting a middle truss at the left side of the deformation joint based on the hoisting foundation, connecting the truss at the left side of the deformation joint with the multiple connecting beams to form a foundation truss; step five, taking the left side of the foundation truss as a first operation surface to carry out subsequent left side truss construction; step six, after the subsequent left side truss and the right side truss are both constructed, removing the multiple connecting beams. The method greatly shortens the construction period, not only reduces the construction cost, but also provides a strong guarantee for the timely promotion of subsequent projects.

Description

Technical Field

[0001] This invention relates to the field of gable wall steel truss construction technology, specifically to a method for constructing a coal shed pipe truss located at the end of a gable wall. Background Technology

[0002] The conventional construction method for coal shed trusses typically begins at the end of the gable wall. The construction process must strictly adhere to a specific sequence: first, focus efforts on building a spatially stable system at the gable wall. Only after completing this stage can construction proceed to other areas. The entire process relies on a single working face. Due to the complex structural design of the gable wall, numerous connection nodes need to be addressed. Furthermore, the on-site construction space is often very limited, making it difficult to operate large construction equipment and restricting worker activities. Because of the dense clusters of nodes at the gable wall, the construction team spends a significant amount of time on handling these connections, severely impacting the overall construction progress.

[0003] This invention proposes a novel construction method for coal shed trusses located at the end of a gable wall, starting installation from the expansion joint of the coal shed. First, two trusses are simultaneously installed on one side of the expansion joint, quickly forming a spatially stable frame. Then, the truss on the other side of the expansion joint is installed, successfully constructing two working faces. This innovative construction method significantly shortens the construction period compared to traditional methods, reducing construction costs and providing strong support for the timely progress of subsequent projects, demonstrating clear advantages. Summary of the Invention

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

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A construction method for a coal shed pipe truss located at the end of a gable wall, the coal shed pipe truss being located at the end of a gable wall and including a left truss and a right truss, with an expansion joint provided between the left truss and the right truss; Both the left and right trusses are assembled from multiple trusses. The coal shed pipe truss is constructed simultaneously from the expansion joint towards both sides, including the following steps: Step 1: Hoist two trusses to the right side of the expansion joint to form a stable truss; Step 2: Arrange multiple connecting beams at even intervals on the left side of the stabilizing truss and above the expansion joint; Step 3: Construct four side trusses on the left side of the expansion joint to form the hoisting foundation; Step 4: Using the right side of the foundation truss as the second working surface, carry out the subsequent construction of the right-side truss; at the same time, using the hoisting foundation as the basis, hoist the middle truss on the left side of the expansion joint, and connect the truss on the left side of the expansion joint with multiple connecting beams to form the foundation truss; Step 5: Using the left side of the foundation truss as the first working surface, proceed with the subsequent construction of the left side truss; Step 6: After the construction of the left and right trusses is completed, remove the multiple connecting beams.

[0006] Preferably, step one specifically involves: first, setting up two crawler cranes at intervals on the right side of the expansion joint, i.e., the initial construction position; then, erecting a support frame; and using the support frame to build four side trusses on the right side of the expansion joint. The four side trusses are arranged opposite each other in pairs, and adjacent side trusses are connected by secondary trusses. The side trusses are then reinforced with guy ropes. Next, two crawler cranes are used to simultaneously lift two middle trusses, connecting the two ends of the middle trusses to the two opposite side trusses. Without releasing the hooks of the crawler cranes, secondary trusses are connected between the two trusses to finally form a stable truss.

[0007] Preferably, the connecting beam includes a crossbar and two U-shaped connecting grooves. The two U-shaped connecting grooves are disposed at both ends of the crossbar. Bolts are detachably installed at the opening of the U-shaped connecting grooves. The U-shaped connecting grooves are detachably connected to the upper chord on one side of the truss.

[0008] Preferably, step three specifically involves: first, setting up a support frame on the left side of the expansion joint; then, building two side trusses on the left side of the expansion joint based on the support frame; the two side trusses are positioned opposite each other; and the two side trusses on the left side of the expansion joint are connected to the two side trusses on the right side of the expansion joint via connecting beams; then, setting up another support frame on the left side of the expansion joint; and building two more side trusses based on the support frame; and connecting adjacent side trusses via secondary trusses to form a basic truss.

[0009] Preferably, step four specifically involves: using a crawler crane to hoist the middle truss, connecting both ends of the middle truss to two side trusses that are opposite to each other and adjacent to the left side of the expansion joint, and connecting the first truss on the left side of the expansion joint to the connecting beam without releasing the hook of the crawler crane, thus forming a foundation truss between the truss on the left side of the expansion joint and the two trusses on the right side of the expansion joint.

[0010] Preferably, in step four, the subsequent truss construction steps of the second working face are as follows: erect a support frame, build two side trusses based on the support frame, use a crawler crane to hoist the middle truss, connect the two ends of the middle truss to the two opposite side trusses, and then hoist the middle truss and connect the secondary trusses in sequence, repeating this operation until the construction of the right truss is completed.

[0011] Preferably, in step five, the subsequent truss construction steps of the first working face are as follows: using a crawler crane to hoist the middle truss, connecting both ends of the middle truss to the two oppositely arranged side trusses, and connecting the second truss on the left side of the expansion joint to the first truss on the left side of the expansion joint through a secondary truss without releasing the crawler crane hook, and then continuing to support the support frame on the left side of the second truss on the left side of the expansion joint, and then sequentially constructing the two side trusses, hoisting the middle truss, and connecting the secondary trusses, repeating this operation until the construction of the left truss is completed.

[0012] In this invention, the method starts the installation from the expansion joint. First, a stable truss is built on the right side of the expansion joint. Then, relying on the stable truss, a truss is hoisted on the left side of the expansion joint to form a basic truss. The left side of the basic truss is the first working surface, and the right side of the basic truss is the second working surface. The subsequent truss construction is carried out simultaneously on the first and second working surfaces. Compared with the traditional construction method, the construction cycle is greatly shortened, which not only reduces the construction cost, but also provides a strong guarantee for the timely progress 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 no secondary truss was used to connect the left and right trusses, a temporary connecting beam was needed at the expansion joint to ensure construction stability in order to open up another working surface. The temporary beam consisted of 6.5m long H-beams with two brackets at each end, securing the upper chord of the columns. It was detachable and reusable. The connecting beam connected the truss on the left side of the expansion joint to the stable truss. The hoisting foundation was first built using the stable truss, followed by the foundation truss. The U-shaped connecting groove in the beam allowed for some deformation of the truss, making it widely applicable. Furthermore, the detachable and reusable nature of the beam reduced costs.

[0015] Using roadbed boxes as horizontal supports provides a solid foundation for the auxiliary supports at the bottom of the steel truss, effectively preventing settlement. The vertical support assemblies employ a truss structure, possessing strong load-bearing capacity and good safety. Reinforced connectors enhance the stability of the vertical support assemblies, preventing overturning. Adjustable components allow for height adjustment of the connectors, accommodating support operations within a certain height range for the steel truss, and also enabling vertical adjustment during installation, facilitating installation and adjustment, and improving the accuracy and efficiency of construction operations. The auxiliary support components are reusable, reducing construction costs, facilitating loading and unloading, and increasing construction efficiency. Attached Figure Description

[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 in step one of the present invention; Figure 3 This is a schematic diagram showing the completion of step one of the construction processes of the present invention; Figure 4 This is a schematic diagram illustrating 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 illustrating the completion of step four of the present invention. Figure 7 This 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 a schematic diagram of another structure of the side truss of the present invention; In the diagram: 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. Clamp; 030. Horizontal support section; 031. Vertical support rod assembly; 032. Reinforcing connecting rod; 033. Connector; 040. Sleeve; 041. Adjusting screw; 310. Column; 311. Support component. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings: like Figures 1-9 The diagram illustrates a construction method for a coal shed pipe truss located at the end of a gable wall. 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. An expansion joint 5 is provided between the left truss 1 and the right truss 2.

[0018] Both the left truss 1 and the right truss 2 are assembled from multiple trusses 3. The coal shed pipe truss is constructed simultaneously from the expansion joint 5 towards both sides, including the following steps: Step 1: Hoist two trusses 3 to the right side of expansion joint 5 to form a stable truss; Specifically: First, two crawler cranes are set up at intervals on the right side of expansion joint 5, i.e., the initial construction position. Then, a support frame is erected, and four side trusses 30 are built on the right side of expansion joint 5 based on the support frame. The four side trusses 30 are set up in pairs facing each other, and two adjacent side trusses 30 are connected by secondary trusses 32. The side trusses 30 are then reinforced with guy ropes. Then, two middle trusses 31 are hoisted simultaneously using two crawler cranes. The two ends of the middle trusses 31 are connected to the two opposite side trusses 30. Without releasing the hooks of the crawler cranes, secondary trusses 32 are connected between the two trusses to finally form a stable truss.

[0019] Step 2: Arrange multiple connecting beams 4 at even intervals on the left side of the stable truss and above the expansion joint 5. The connecting beam 4 includes a crossbar 40 and two U-shaped connecting grooves 41. The two U-shaped connecting grooves 41 are located at both ends of the crossbar 40. Bolts are detachably installed at the opening of the U-shaped connecting grooves 41. The U-shaped connecting grooves 41 are detachably connected to the upper chord on one side of the truss 3.

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

[0021] First, a support frame is erected on the left side of the expansion joint 5. Based on the support frame, two side trusses 30 are built on the left side of the expansion joint 5. The two side trusses 30 are set opposite each other. The two side trusses 30 on the left side of the expansion joint 5 are connected to the two side trusses 30 on the right side of the expansion joint 5 through a connecting beam 4. Then, a support frame is erected on the left side of the expansion joint. Based on the support frame, two more side trusses 30 are built. The two adjacent side trusses 30 are connected through 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 expansion joint 5, and connect the truss 3 on the left side of the expansion joint 5 with multiple connecting beams 4 to form the foundation truss. Step 4: Using the right side of the foundation truss as the second working surface, carry out the construction of the subsequent right-side truss 2; at the same time, using the hoisting foundation as the basis, hoist the middle truss 31 on the left side of the expansion joint 5, and connect the truss 3 on the left side of the expansion joint 5 with multiple connecting beams 4 to form the foundation truss. The subsequent truss construction steps for the second working face are as follows: Erect a support frame, build two side trusses 30 based on the support 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, and then lift the middle truss 31 and connect the secondary trusses 32 in sequence. Repeat this operation until the construction of the right truss 2 is completed.

[0023] Specifically: Using a crawler crane, the middle truss 31 is hoisted and connected to the two side trusses 30 that are opposite to each other and adjacent to the left side of the expansion joint 5. Without releasing the hook of the crawler crane, the first truss on the left side of the expansion joint 5 is connected to the connecting beam 4. The foundation truss is formed between the truss 3 on the left side of the expansion joint 5 and the two trusses 3 on the right side of the expansion joint 5.

[0024] Step 5: Using the left side of the foundation truss as the first working surface, proceed with the construction of the subsequent left truss 1; The subsequent truss construction steps for the first working face are as follows: Using a crawler crane, the middle truss 31 is hoisted and connected to the two opposite side trusses 30 at both ends. Without releasing the crawler crane hook, the second truss 3 on the left side of the expansion joint 5 is connected to the first truss 3 on the left side of the expansion joint 5 through a secondary truss 32. Then, a support frame is erected on the left side of the second truss 3 on the left side of the expansion joint 5. Then, the two side trusses 30 are erected, the middle truss 31 is hoisted, and the secondary truss 32 is connected in sequence. This operation is repeated 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, remove the multiple connecting beams 4.

[0026] The side truss 30 includes two supporting columns 01 and a steel truss 02 installed on top of the supporting columns 01. Specifically, the steel truss 02 is a facade lattice structure, and its bottom side view is triangular, with the side closest to the gable wall being suspended. Seismic spherical hinge supports are installed on top of the supporting columns 01, and the bottom of the side away from the gable wall is installed on top of the two seismic spherical hinge supports.

[0027] An auxiliary support component 03 is installed on one side of the bottom of the steel truss 02. During the installation of the steel truss 02, the auxiliary support component 03 is used to support the bottom of the steel truss 02 that is suspended, so as to ensure that the installation work is carried out safely and stably.

[0028] The auxiliary support assembly 03 includes a horizontal support part 030, a vertical support rod assembly 031, a reinforcing connecting rod 032, and a connector 033. In this embodiment, the horizontal support part 030 is a roadbed box, and the vertical support rod assembly 031 is fixedly installed on the top of the roadbed box by welding or fasteners. The horizontal support part 030 can also be a concrete pier or a steel frame pier.

[0029] The vertical support rod assembly 031 is installed on the top of the horizontal support part 030. The vertical support rod assembly 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 reinforcing connecting rod 032 are fixedly installed on the vertical support rod assembly 031 and the support column 01, respectively. The reinforcing connecting rod 032 can connect the vertical support rod assembly 031 and the support column 01 into one unit, which can prevent the vertical support rod assembly 031 from overturning during support operations and improve the stability of the support.

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

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

[0033] The adjustment assembly 04 includes a sleeve 040 and an adjustment screw 041 fixedly installed on the top of the sleeve 040 by welding. The sleeve 040 is fixedly installed on the top of the column 310. One end of the connector 033 is adjustablely installed on the adjustment screw 041 by a nut. The height of the connector 033 can be adjusted by turning the nut.

[0034] A clamp 05 is provided at one end of the connector 033. The clamp 05 can be detachably installed on the steel truss 02 to avoid the problem of inconvenience in disassembly caused by the welding connection method.

[0035] The above embodiments are merely illustrative of the concept and implementation of the present invention and are not intended to limit it. Under the concept of the present invention, technical solutions without substantial changes are still within the scope of protection.

Claims

1. A construction method for a coal shed truss located at the end of a gable wall, characterized in that: 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). An expansion 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 truss is constructed simultaneously from the expansion joint (5) to both sides, including the following steps: Step 1: Hoist two trusses (3) to the right side of the expansion joint (5) to form a stable truss; The specific steps of step one are as follows: First, two crawler cranes are set up at intervals on the right side of the expansion joint (5), i.e., the initial construction position. Then, a support frame is erected. Based on the support frame, four side trusses (30) are built on the right side of the expansion joint (5). The four side trusses (30) are set up in pairs opposite each other. The two adjacent side trusses (30) are connected by a secondary truss (32). The side trusses (30) are reinforced by guy ropes. Then, two middle trusses (31) are hoisted by two crawler cranes at the same time. The two ends of the middle truss (31) are connected to the two opposite side trusses (30). Without the crawler cranes being released, the secondary truss (32) is connected between the two trusses to finally 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 expansion joint (5); Step 3: Construct four side trusses (30) on the left side of the expansion joint (5) to form the hoisting foundation; The specific steps of step three are as follows: First, a support frame is erected on the left side of the expansion joint (5). Two side trusses (30) are built on the left side of the expansion joint (5) based on the support frame. The two side trusses (30) are set opposite to each other. The two side trusses (30) on the left side of the expansion joint (5) are connected to the two side trusses (30) on the right side of the expansion joint (5) through a connecting beam (4). Then, a support frame is erected on the left side of the expansion joint. Two more side trusses (30) are built based on the support frame. The two adjacent side trusses (30) are connected through a secondary truss (32) to form a hoisting foundation. Step 4: Based on the hoisting foundation, hoist the middle truss (31) on the left side of the expansion joint (5), connect the truss (3) on the left side of the expansion joint (5) with multiple connecting beams (4) to form the foundation truss; at the same time, take the right side of the foundation truss as the second working surface and carry out the subsequent construction of the right side truss (2). The fourth step is 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) that are opposite to each other and adjacent to the left side of the expansion joint (5), and connecting the first truss on the left side of the expansion joint (5) to the connecting beam (4) without releasing the crawler crane hook. The first truss (3) on the left side of the expansion joint (5) and the two trusses (3) on the right side of the expansion joint (5) form a foundation truss. Step 5: Using the left side of the foundation truss as the first working surface, carry out the subsequent construction of the left side truss (1); Step 6: After the construction of the left truss (1) and the right truss (2) is completed, remove the multiple connecting beams (4).

2. The construction method for the coal shed pipe truss located at the end of the gable wall according to claim 1, characterized in that: The connecting beam (4) includes a crossbar (40) and two U-shaped connecting grooves (41). The two U-shaped connecting grooves (41) are located at both ends of the crossbar (40). Bolts are detachably installed at the opening of the U-shaped connecting grooves (41). The U-shaped connecting grooves (41) are detachably connected to the upper chord on one side of the truss (3).

3. The construction method for the coal shed pipe truss located at the end of the gable wall according to claim 1, characterized in that, In step four, the subsequent truss construction steps of the second working face are as follows: erect a support frame, build two side trusses (30) based on the support frame, use a crawler crane to hoist the middle truss (31), connect the two ends of the middle truss (31) to the two side trusses (30) set opposite to each other, and then hoist the middle truss (31) and connect the secondary trusses (32) in sequence. Repeat this operation until the construction of the right truss (2) is completed.

4. The construction method for the coal shed pipe truss located at the end of the gable wall according to claim 3, characterized in that, The subsequent truss construction steps for the first working face are as follows: use a crawler crane to hoist the middle truss (31), connect the two ends of the middle truss (31) to the two side trusses (30) set opposite to each other, and connect the second truss (3) on the left side of the expansion joint (5) and the first truss (3) on the left side of the expansion joint (5) through a secondary truss (32) while the crawler crane is not slack, and then continue to support the support frame on the left side of the second truss (3) on the left side of the expansion joint (5), and then carry out the construction of the two side trusses (30), the hoisting of the middle truss (31) and the connection of the secondary truss (32) in sequence. Repeat this operation until the construction of the left truss (1) is completed.

5. The construction method for the coal shed pipe truss located at the end of the gable wall according to claim 1, characterized in that: The side truss (30) includes two support columns (01) and a steel truss (02) installed on the top of the support columns (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) includes a horizontal support part (030), a vertical support rod group (031), a reinforcing connecting rod (032), and a connector (033). The vertical support rod group (031) is set on the horizontal support part (030). The two ends of the reinforcing connecting rod (032) are respectively installed on the vertical support rod group (031) and the support column (01). One end of the connector (033) is fixedly set on the top of the vertical support rod group (031), and the other end of the connector (033) is fixedly connected to the steel truss (02).

6. The construction method for the coal shed pipe truss located at the end of the gable wall according to claim 5, characterized in that: The vertical support rod assembly (031) includes two vertically arranged columns (310) and a support member (311) fixedly arranged between the two columns (310). The interval between the two columns (310) is adapted to the width of the steel truss (02).

7. The construction method for the coal shed pipe truss located at the end of the gable wall according to claim 6, characterized in that: An adjustment assembly (04) is installed on the top of the vertical support rod assembly (031). The connector (033) is installed on the adjustment assembly (04). The height of the connector (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). The connector (033) is adjustablely installed on the adjustment screw (041) by a nut.

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