Construction method for reversely and rapidly installing indoor stage steel structure

Abstract

The invention discloses a construction method for reversely and rapidly installing an indoor stage steel structure. The construction method comprises the following steps that S1, an outdoor-to-indoor hauling channel is built; a proper position is selected as a component hauling channel, two rails are arranged in the channel, a hauling platform with a steel rail groove is laid above the rails, and it is guaranteed that component hauling does not have large influence on a constructed structure. S2, arranging a winch assembly and a guide pulley; according to the method, two winch assemblies are attached to a main body structure column to be symmetrically arranged to serve as main hoisting equipment, meanwhile, another winch assembly is installed to serve as auxiliary hoisting equipment, and guide tackles are arranged on peripheral steel columns, so that the problem of indoor installation of the stage steel structure under the condition that no large hoisting equipment exists is solved through the method; and the method is superior to large mechanical hoisting in the aspects of cost, progress, quality and safety, and has important guiding significance on construction of similar projects or installation of steel structures in an indoor environment.

Description

Technical Field

[0001] The invention relates to the technical field of steel structure installation, and in particular to a construction method for reversely and quickly installing an indoor stage steel structure. Background Art

[0002] In the prior art, conventional main steel structure installations are all installed using lifting machinery such as tower cranes or truck cranes. Stage design, as a functional design, is often carried out after the main structure design is completed, resulting in the stage structure being constructed after the main structure construction is completed, tower cranes and other lifting equipment are removed, and truck cranes cannot enter the room for operation, making it impossible to use conventional steel structure hoisting construction methods.

[0003] Therefore, the present application proposes a construction method for reversely and quickly installing an indoor stage steel structure to solve the above problems. Summary of the invention

[0004] Based on the background technology, there is a technical problem that the main construction is completed, the tower crane and other lifting equipment are dismantled, and the truck crane cannot enter the indoor operation, resulting in the inability to use conventional steel structure hoisting construction methods for construction. The present invention proposes a construction method for reverse and rapid installation of indoor stage steel structures.

[0005] The invention provides a construction method for reversely and rapidly installing an indoor stage steel structure, comprising the following steps: S1: Establish a haulage channel from outdoor to indoor; Select a suitable location as the component hauling channel, arrange two tracks in the channel, and lay a hauling platform with rail grooves above the tracks to ensure that the component hauling does not have a significant impact on the completed structure. S2: Arrange the winch assembly and guide pulley; Two winch assemblies are attached to the main structure columns and arranged symmetrically as the main lifting equipment. Another winch assembly is installed as an auxiliary lifting equipment. Guide pulleys are arranged on the surrounding steel columns to facilitate the hauling of components and subsequent lifting construction. S3: in-situ assembly and segmentation; After the pulley beam and equipment layer steel components are all brought into the site, the wire rope of the winch assembly is wound around the lifting point of the stage top structure beam. Two winch assemblies are used as lifting power equipment. Two lifting wire ropes are hung on each rope head. The pulley beam and equipment layer steel structure are assembled in situ. After the pulley beam and the equipment layer floor are assembled as a whole, they are divided into sections. S4: Improvement of construction and supplementary files; The pulley beam and the equipment layer steel structure are slowly lifted to the designed position. Before lifting, positioning measures are taken at each connection point at the bottom of the main structure beam. The equipment layer beam component has a small cross-section and a large span, which is prone to deflection. Therefore, the two lifting points of the auxiliary lifting winch assembly are arranged in the middle position. After the two sides are lifted in place, the ropes are collected until the connection point in the middle position is completely fitted with the main structure, and then welding and connection construction operations are carried out. In order to ensure the synchronization and safety of the lifting, the specifications and powers of the two winch assemblies must be consistent. A slow winch assembly is used, and the winch assembly operators receive instructions from the same signal worker at the same time. S5: After the lifting construction is completed, the winch assembly is used to carry out the supplementary hoisting construction, and the order of supplementary hoisting is from the middle to both sides.

[0006] Preferably, in S2, the winch assembly includes an internally hollow base, and the winch assembly also includes an electric push rod, a hollow plate, a movable plate, a connecting plate, an auxiliary plate winch assembly and an extension plate, the electric push rod is fixedly connected to the left side of the base, and the output end of the electric push rod extends into the base, the hollow plate is fixedly connected to the bottom inner wall of the base, the movable plate is fixedly connected to the right end of the output end of the electric push rod, the connecting plate is rotatably connected to the front side of the movable plate, the auxiliary plate is slidably connected to the right side of the hollow plate, and the front side of the auxiliary plate is rotatably connected to the top of the connecting plate, the winch assembly is slidably connected to the top of the base, and a lifting rope is wound inside the winch assembly, the extension plate is slidably connected to the bottom inner wall of the base, and the front side of the extension plate extends outside the base and is fixedly connected to the winch assembly.

[0007] Furthermore, the winch assembly can control the movement of the winch assembly when the winch assembly is working. At this time, the winch assembly can control the hoisting rope to be stably wound, avoiding confusion when the hoisting rope is wound and affecting the hoisting effect.

[0008] Preferably, the front side of the auxiliary plate is rotatably connected to a rotating wheel, the top of the extension plate is an inclined surface, and the inclined surface of the extension plate is in contact with the rotating wheel, the right side of the extension plate is fixedly connected to a spring, and one end of the spring is fixedly connected to the right inner wall of the base.

[0009] Furthermore, when the auxiliary plate descends and drives the rotating wheel to contact the inclined surface of the extension plate, the rotating wheel can control the extension plate to move, and by setting a spring, the spring has the effect of pulling the extension plate back to its original position.

[0010] Beneficial effects of the present invention: The present invention solves the problem of installing stage steel structures indoors without large-scale lifting equipment through this method, and this method is superior to large-scale mechanical lifting in terms of cost, progress, quality and safety, and has important guiding significance for the construction of similar projects or the installation of steel structures in indoor environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 The working flow diagram proposed for the present invention; Figure 2 This is a diagram of the stage structure model proposed by the present invention; Figure 3 This is a schematic diagram of the construction of the guide pulley proposed by the present invention; Figure 4 This is a schematic diagram of the lifting construction proposed by the present invention; Figure 5 This is a schematic diagram of the pulley beam and equipment layer steel structure segmentation proposed by the present invention; Figure 6 This is a schematic diagram of the supplementary construction proposed by the present invention; Figure 7 This is a schematic diagram of the mechanism of the winch assembly proposed by the present invention.

[0012] In the figure: 1. base; 2. electric push rod; 3. movable plate; 4. hollow plate; 5. connecting plate; 6. auxiliary plate; 7. extension plate; 8. spring; 9. winch assembly; 10. lifting rope; DETAILED DESCRIPTION

[0013] The present invention will be further explained below in conjunction with specific embodiments.

[0014] Reference Figure 1-7 , Example This embodiment proposes a construction method for reversely and quickly installing an indoor stage steel structure, including the following steps: S1: Establish a haulage channel from outdoor to indoor; Select a suitable location as the component hauling channel, arrange two tracks in the channel, and lay a hauling platform with rail grooves above the tracks to ensure that the component hauling does not have a significant impact on the completed structure. S2: Arrange the winch assembly and guide pulley; Two winch assemblies are attached to the main structure columns and arranged symmetrically as the main lifting equipment. Another winch assembly is installed as an auxiliary lifting equipment. Guide pulleys are arranged on the surrounding steel columns to facilitate the hauling of components and subsequent lifting construction. S3: in-situ assembly and segmentation; After the pulley beam and equipment layer steel components are all brought into the site, the wire rope of the winch assembly is wound around the lifting point of the stage top structure beam. Two winch assemblies are used as lifting power equipment. Two lifting wire ropes are hung on each rope head. The pulley beam and equipment layer steel structure are assembled in situ. After the pulley beam and the equipment layer floor are assembled as a whole, they are divided into sections. S4: Improvement of construction and supplementary files; The pulley beam and the equipment layer steel structure are slowly lifted to the designed position. Before lifting, positioning measures are taken at each connection point at the bottom of the main structure beam. The equipment layer beam component has a small cross-section and a large span, which is prone to deflection. Therefore, the two lifting points of the auxiliary lifting winch assembly are arranged in the middle position. After the two sides are lifted in place, the ropes are collected until the connection point in the middle position is completely fitted with the main structure, and then welding and connection construction operations are carried out. In order to ensure the synchronization and safety of the lifting, the specifications and powers of the two winch assemblies must be consistent. A slow winch assembly is used, and the winch assembly operators receive instructions from the same signal worker at the same time. S5: After the lifting construction is completed, the winch assembly is used to carry out the supplementary hoisting construction, and the order of supplementary hoisting is from the middle to both sides.

[0015] In this embodiment, the winch assembly includes a base 1 with a hollow interior, and the winch assembly also includes an electric push rod 2, a hollow plate 4, a movable plate 3, a connecting plate 5, an auxiliary plate 6, a winch assembly 9 and an extension plate 7. The electric push rod 2 is fixedly connected to the left side of the base 1, and the output end of the electric push rod 2 extends into the base 1, the hollow plate 4 is fixedly connected to the bottom inner wall of the base 1, the movable plate 3 is fixedly connected to the right end of the output end of the electric push rod 2, the connecting plate 5 is rotatably connected to the front side of the movable plate 3, the auxiliary plate 6 is slidably connected to the right side of the hollow plate 4, and the auxiliary plate The front side of 6 is rotatably connected to the top of the connecting plate 5, the winch assembly 9 is slidably connected to the top of the base 1, and the hoisting rope 10 is wound inside the winch assembly 9, the extension plate 7 is slidably connected to the bottom inner wall of the base 1, and the front side of the extension plate 7 extends to the outside of the base 1 and is fixedly connected to the winch assembly 9. The winch assembly can control the winch assembly 9 to move when the winch assembly 9 is working. At this time, the winch assembly 9 can control the hoisting rope 10 to be wound stably to avoid confusion when the hoisting rope 10 is wound, which affects the hoisting effect.

[0016] In this example, the front side of the auxiliary plate 6 is rotatably connected to a rotating wheel, the top of the extension plate 7 is an inclined surface, and the inclined surface of the extension plate 7 is in contact with the rotating wheel, the right side of the extension plate 7 is fixedly connected to a spring 8, and one end of the spring 8 is fixedly connected to the right inner wall of the base 1. When the auxiliary plate 6 descends and drives the rotating wheel to contact the inclined surface of the extension plate 7, the rotating wheel can control the extension plate 7 to move. By setting the spring 8, the spring 8 has the effect of pulling the extension plate 7 back to its original position.

[0017] Working principle: First, the main structural beam on the upper part of the stage is constructed, and the pulley group is installed at the bottom of the beam. At the same time, the winch assembly and the wire rope are installed, and the rope head is wound around the top of the assembly site. Then the stage steel structure is assembled as a whole at the designed lower projection position. According to the weight arrangement and the lifting capacity of the winch assembly, the pulley beam and the equipment layer steel structure are segmented. The winch assembly is used as a lifting power device. Two lifting wire ropes are hung on each rope head. A total of 4 lifting points are connected to the segmented equipment layer beams. At the same time, the electric push rod 2 works, and the electric push rod 2 pushes the movable plate 3 to move. The movable plate 3 can be moved by pulling the connecting plate 5, thereby pulling the auxiliary plate 6 down. At this time, the auxiliary plate 6 descends to drive the rotating wheel to contact the inclined surface of the extension plate 7, thereby controlling the extension plate 7 to move to the left. The movement of the extension plate 7 can synchronously control the movement of the winch assembly 9. At this time, the movement of the winch assembly 9 can guide the hoisting rope 10 to be evenly wound and wound to prevent confusion and ensure the tension during winding. At this time, the winch assembly retracts the rope and slowly lifts the pulley beam and the equipment layer steel structure to the designed position. After the lifting construction is completed, the winch assembly or tower crane is used for supplementary lifting construction. The supplementary order is carried out from the middle to both sides. Finally, the winch assembly wire rope, the pulley group and the lifting lug at the bottom of the beam are removed, and then other parts of the stage steel structure are constructed in a similar way.

[0018] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A construction method for reversely and quickly installing an indoor stage steel structure, characterized in that: The following steps are involved: S1: Establish a haulage channel from outdoor to indoor; Select a suitable location as the component hauling channel, arrange two tracks in the channel, and lay a hauling platform with rail grooves above the tracks to ensure that the component hauling does not have a significant impact on the completed structure. S2: Arrange the winch assembly and guide pulley; Two winch assemblies are attached to the main structure columns and arranged symmetrically as the main lifting equipment. Another winch assembly is installed as an auxiliary lifting equipment. Guide pulleys are arranged on the surrounding steel columns to facilitate the hauling of components and subsequent lifting construction. S3: in-situ assembly and segmentation; After the pulley beam and equipment layer steel components are all brought into the site, the wire rope of the winch assembly is wound around the lifting point of the stage top structure beam. Two winch assemblies are used as lifting power equipment. Two lifting wire ropes are hung on each rope head. The pulley beam and equipment layer steel structure are assembled in situ. After the pulley beam and the equipment layer floor are assembled as a whole, they are divided into sections. S4: Improvement of construction and supplementary files; The pulley beam and the equipment layer steel structure are slowly lifted to the designed position. Before lifting, positioning measures are taken at each connection point at the bottom of the main structure beam. The equipment layer beam component has a small cross-section and a large span, which is prone to deflection. Therefore, the two lifting points of the auxiliary lifting winch assembly are arranged in the middle position. After the two sides are lifted in place, the ropes are collected until the connection point in the middle position is completely fitted with the main structure, and then welding and connection construction operations are carried out. In order to ensure the synchronization and safety of the lifting, the specifications and powers of the two winch assemblies must be consistent. A slow winch assembly is used, and the winch assembly operators receive instructions from the same signal worker at the same time. S5: After the lifting construction is completed, the winch assembly is used to carry out the supplementary hoisting construction, and the order of supplementary hoisting is from the middle to both sides.

2. A construction method for reversely and rapidly installing an indoor stage steel structure according to claim 1, characterized in that: In S2, the hoist assembly includes a base (1) with a hollow interior, and the hoist assembly also includes an electric push rod (2), a hollow plate (4), a movable plate (3), a connecting plate (5), an auxiliary plate (6), a hoist assembly (9) and an extension plate (7), wherein the electric push rod (2) is fixedly connected to the left side of the base (1), and the output end of the electric push rod (2) extends into the base (1), the hollow plate (4) is fixedly connected to the bottom inner wall of the base (1), and the movable plate (3) is fixedly connected to the right end of the output end of the electric push rod (2). The connecting plate (5) is rotatably connected to the front side of the movable plate (3), the auxiliary plate (6) is slidably connected to the right side of the hollow plate (4), and the front side of the auxiliary plate (6) is rotatably connected to the top of the connecting plate (5), the hoisting assembly (9) is slidably connected to the top of the base (1), and a lifting rope (10) is wound inside the hoisting assembly (9), and the extension plate (7) is slidably connected to the bottom inner wall of the base (1), and the front side of the extension plate (7) extends to the outside of the base (1) and is fixedly connected to the hoisting assembly (9).

3. A construction method for reversely and rapidly installing an indoor stage steel structure according to claim 2, characterized in that: The front side of the auxiliary plate (6) is rotatably connected to a rotating wheel, the top of the extension plate (7) is an inclined surface, and the inclined surface of the extension plate (7) is in contact with the rotating wheel, and the right side of the extension plate (7) is fixedly connected to a spring (8), and one end of the spring (8) is fixedly connected to the right inner wall of the base (1).

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