Construction method for vertical transportation system inside core tube

Abstract

The present invention discloses a construction method for a vertical transportation system inside a core tube, which relates to the technical field of building construction. The method includes Step 1: installing an attachment device by installing the attachment device at a preset position inside the core tube; Step 2: installing a lower framework and a hanging rack. First, install a climbing form on the attachment device, install the lower framework on the climbing form on the same side, and install the hanging rack at the bottom of the lower framework; Step 3: installing an upper framework by installing the upper framework at the top of the lower framework; Step 4: installing a top floor platform by installing the top floor platform at the top of the upper framework; Step 5: adding sections to the elevator guide rail. Add a standard section above the existing elevator guide rail, and install an upper cage on the added standard section; Step 6: adding a right-side hanging rack. This method can form a complete vertical transportation system during the construction of the core tube. The construction elevator and the climbing formwork operation do not interfere with each other, the floor slabs can be constructed layer by layer, effectively avoiding idling of workers, realizing harmonious connection of multiple construction operations, improving construction efficiency and convenience, and reducing construction costs.

Description

Technical Field

[0001] The present invention relates to the technical field of building construction, and particularly relates to a construction method for a vertical transportation system inside a core tube. Background Art

[0002] In hydraulic climbing formwork construction, handling the relationship between the construction elevator and the hydraulic climbing formwork is a difficult point in construction. Currently, the widely adopted measure is to set multiple layers of hanging brackets at the bottom layer of the climbing formwork frame. The construction elevator is lifted to the platform of the hanging bracket, and construction workers enter the climbing formwork platform through the hanging bracket. This method has relatively low requirements for the climbing formwork frame and does not require special treatment of the climbing formwork frame. The hanging bracket only needs to meet the requirements for personnel passage. However, this method cannot make full use of the convenience of the construction elevator. Due to the safety requirements of the elevator, there is at least a distance of more than 7 meters from the elevator car to the top of the standard section. This distance needs to be compensated by the hanging bracket of the climbing formwork. At the same time, considering the gap between the climbing of the climbing formwork and the installation process of the elevator standard section, at least a safety distance of one floor height should be left. This makes the length of the hanging bracket about more than ten meters, and the repeated utilization rate of the hanging bracket is relatively low, resulting in certain waste. Using this method, construction workers can only reach the additional hanging bracket of the climbing formwork. There are about 10 working platforms from the additional hanging bracket to the top platform of the climbing formwork. Construction workers still need to climb through the frame again, which is not conducive to transfer transportation. Another commonly used method for people to access is that the elevator goes up to the completed horizontal floor and then climbs to the climbing formwork construction operation layer through a temporary staircase. The horizontal floor is about 5 or 6 floors behind the construction, or even up to about ten floors. This method makes the construction speed slower. Summary of the Invention

[0003] The purpose of the present invention is to provide a construction method for a vertical transportation system inside a core tube. This method can form a complete vertical transportation system during the construction of the core tube. The construction elevator and the climbing formwork operation do not interfere with each other. The floor slabs can be constructed layer by layer, effectively avoiding idling of work, realizing harmonious connection of multiple operations during construction, improving construction efficiency and convenience, and reducing construction costs.

[0004] To achieve the above purpose, the present invention takes the following technical solutions:

[0005] A construction method for a vertical transportation system inside a core tube, the construction method includes the following steps:

[0006] Step 1, install the wall-attached device. Install the wall-attached device at a preset position inside the core tube. The wall-attached device is symmetrically installed in two groups on both sides inside the core tube. Before installing the wall-attached device, the elevator guide rail has been installed in the elevator shaft, and the lower cage is installed on the elevator guide rail.

[0007] Step 2, install the lower frame body and the hanging bracket. First, install the climbing formwork on the wall-attached device, and then install the lower frame body on the climbing formwork on the same side. After the installation of the lower frame body is completed, install the hanging bracket at the bottom of the lower frame body.

[0008] Step 3: Install the upper frame body. Install the upper frame body on top of the lower frame body. The upper frame body is vertically assembled by multiple upper frame monomers. Each upper frame monomer includes multiple vertically arranged upper support rods, upper cross support rods installed on the upper support rods, and horizontal beam frames installed between adjacent pairs of upper support rods. Install a horizontal truss between two upper frame bodies on the same side. The horizontal beam frame includes a lower U-shaped support member, an upper support member, and an inverted V-shaped member fixedly connecting the lower U-shaped support member and the upper support member. Connection holes are provided on both the lower U-shaped support member and the upper support member.

[0009] Step 4: Install the top platform. Use reinforcement connection beams to reinforce and connect the two relatively arranged upper frame bodies on both sides inside the core tube, and install the top platform on top of the upper frame body and the reinforcement connection beams.

[0010] Step 5: Add sections to the elevator guide rails. The elevator guide rails are spliced by multiple standard sections. Add standard sections above the existing elevator guide rails, and install an upper cage on the added standard sections. The upper cage moves vertically along the elevator guide rails to vertically transport personnel and materials between the top platform and the lower construction floors. Install a vertical slide rail on one side of the elevator guide rails. Fix a roller frame on the horizontal truss, and the other end of the roller frame is slidably installed on the vertical slide rail. When the climbing formwork rises vertically, the roller frame slides upward along the vertical slide rail.

[0011] Step 6: Add a right-side hanging rack. After the climbing formwork climbs two floors, add a hanging rack to the bottom of the lower frame body on the side away from the elevator guide rails. When an accident occurs during construction, the added hanging rack also serves as an escape ladder for evacuating workers.

[0012] Preferably, in Step 1, install four wall attachment devices on the north and south sides inside the core tube respectively; the elevator guide rails are arranged on the north side of the core tube.

[0013] Preferably, in Step 2, install a lower frame body between two adjacent climbing formworks; install a hanging rack at the bottom of the lower frame body arranged on the north side of the core tube, and vertically install two hanging racks at the bottom of the lower frame body arranged on the south side of the core tube; the lower frame body is connected to the hanging racks and the hanging racks are connected to each other through straight ladders.

[0014] Preferably, in Step 3, install two or three horizontal trusses between two upper frame bodies on the same side. The horizontal truss includes two parallel crossbars and multiple vertical bars fixedly connecting the two crossbars. The two ends of the crossbars are fixedly installed on the upper frame monomers.

[0015] Preferably, in Step 5, the upper cage and the lower cage are respectively arranged on the east and west sides of the elevator guide rails; the upper cage vertically transports personnel and materials between the construction floor above the lower cage and the top platform; the lower cage vertically transports personnel and materials between the various construction floors below the upper cage.

[0016] Preferably, in step five, at least two roller frames are arranged on one of the elevator guide rails, and when the climbing formwork drives the lower frame to lift as a whole, an auxiliary bracket for reinforcing the stability of the elevator guide rail is installed between the elevator guide rail and the core tube.

[0017] Preferably, the roller frame includes a basic frame, a transfer bracket installed on the back of the basic frame, a main support frame adjustably installed on the front side of the basic frame through an adjusting piece, and a plurality of roller groups installed on the main support frame, and the roller groups are slidably connected to the vertical slide rail.

[0018] Preferably, the adjustment amount of the adjusting member is 1cm to 5cm; the adjusting member includes a left-handed screw installed on the basic frame, a right-handed screw installed on the main support frame, and an adjusting sleeve installed on the left-handed screw and the right-handed screw, and the distance between the main support frame and the basic frame is adjusted by rotating the adjusting sleeve.

[0019] In the present invention, the climbing formwork system is combined with the construction elevator through the roller frame. On the one hand, the roller frame can support the elevator guide rail to ensure the stability of the standard section structure of the elevator installed later. On the other hand, an upper ladder cage is installed on the installed standard section. The upper ladder cage is used to vertically transport personnel and materials between the top platform and the construction layer below. The lower ladder cage can realize vertical overall transportation of the core tube, which solves the problem that the construction layer and the top platform cannot be connected in the prior art. The construction elevator section addition and climbing operation do not interfere with each other. The construction elevator is installed in the elevator shaft. There is no need to reserve the floor slab, and there is no structural drop-off construction. The floor slab can be constructed layer by layer, which effectively avoids idle work and realizes the harmonious connection of multiple construction operations, forming a complete up and down transportation system inside the construction platform.

[0020] The roller frame can adjust the gap perpendicular to the wall, making up for the spatial error caused by the uneven wall when connecting with the climbing formwork. It has strong adaptability and is easy to install. The upper and lower cages are set on opposite sides of the elevator guide rails, and the operation is smooth. When the elevator cannot operate due to an accident or an accident occurs during construction, the multiple brackets installed on the other side are used for escape, and the multiple brackets installed during normal construction are used as step ladders for two adjacent construction layers, so that one object can be used for two purposes.

[0021] In Step Five, by using the upper ladder cage and the lower ladder cage in combination, the connection between the top platform and each construction floor below can be achieved, facilitating the transportation of personnel and materials. The floor slabs can be constructed layer by layer, improving the construction efficiency. Especially in a narrow space, the stratified operation of the space directly affects the process arrangement and avoids idling. Directly ascending from the construction elevator to the top platform effectively guarantees the efficiency of personnel reaching the main working platform and maximizes the stratified construction. It solves the influence on the structural construction when the construction elevator directly reaches the top of the climbing form in the prior art, and realizes multiple methods such as simultaneous construction or stratified construction of the vertical structure and the horizontal structure. There is no need to reserve floor slabs and no structural omission construction, effectively avoiding idling and achieving a harmonious connection of multiple operations during construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the installation state of the wall-attached device in Step One of the present invention;

[0023] Figure 2 It is a schematic diagram of the installation state of the lower frame body and the hanging frame in Step Two of the present invention;

[0024] Figure 3 It is a schematic diagram of the climbing form structure of the present invention;

[0025] Figure 4 It is a schematic diagram of the installation state of the upper frame body in Step Three of the present invention;

[0026] Figure 5 It is a schematic diagram of the installation state of the horizontal beam frame structure of the present invention;

[0027] Figure 6 It is a schematic diagram of the horizontal beam frame structure of the present invention;

[0028] Figure 7 It is a schematic diagram of the installation state of the top platform in Step Four of the present invention;

[0029] Figure 8 It is a schematic diagram of the state of adding a section to the elevator guide rail in Step Five of the present invention;

[0030] Figure 9 It is a schematic diagram of the roller frame structure of the present invention;

[0031] Figure 10 It is a schematic diagram of the adjusting part structure of the present invention;

[0032] Figure 11 It is a schematic diagram of the state of adding the right hanging frame in Step Six of the present invention;

[0033] Figure 12 It is a schematic diagram of the A-A section of the present invention without installing the lower frame body and the hanging frame structure;

[0034] Figure 13 It is a schematic diagram of the B-B section of the present invention without installing the lower frame body and the hanging frame structure;

[0035] Figure 14 This is the plan schematic diagram of the construction state of Step Six of the present invention;

[0036] In the figure: 1, wall-attached device; 2, elevator guide rail; 3, lower cage; 4, climbing formwork; 5, upper frame body; 6, horizontal truss; 7, top platform; 8, roller rack; 10, core tube; 11, lower frame body; 12, hanging rack; 13, straight ladder; 14, lower platform beam; 15, reinforcement connecting beam; 16, reinforcement channel steel; 17, upper cage; 18, vertical slide rail; 40, vertical guide rail; 41, lower climbing box; 42, upper climbing box; 43, climbing oil cylinder; 50, upper support rod; 51, upper horizontal support rod 52, horizontal beam frame; 60, cross bar; 61, vertical bar; 80, foundation frame; 81, adapter bracket; 82, adjusting part; 83, main support frame; 84, roller group; 520, lower U-shaped support part; 521, upper support part; 522, inverted V-shaped part; 523, connection hole; 820, left-handed screw rod; 821, right-handed screw rod; 822, adjusting sleeve. Detailed implementation manners

[0037] The following further describes the present invention with reference to the accompanying drawings:

[0038] A construction method for a vertical transportation system inside a core tube, the construction method comprising the following steps:

[0039] Step One, install the wall-attached device 1, as Figure 1 shown, install the wall-attached device 1 at a preset position inside the core tube 10 through anchor bolts. The wall-attached device 1 is symmetrically installed in two groups on both sides inside the core tube 10. Before installing the wall-attached device 1, the elevator guide rail 2 has been installed in the elevator shaft, and the lower cage 3 is installed on the elevator guide rail 2. The structures of the elevator guide rail 2 and the lower cage 3 are not shown in Figure 1 . In this embodiment, in Step One, four wall-attached devices 1 are respectively installed on the north and south sides inside the core tube 10, and the elevator guide rail 2 is arranged on the north side of the core tube. After installing the wall-attached device 1, adjust the verticality so that the verticality error of the eight wall-attached devices 1 is within the design range.

[0040] Step Two, as Figure 2 and Figure 3As shown in the figure, install the lower frame body 11 and the hanging frame 12. First, install the climbing formwork 4 on the wall-attached device 1, install the lower frame body 11 on the climbing formwork 4 on the same side. After the installation of the lower frame body 11 is completed, install the hanging frame 12 at the bottom of the lower frame body 11. In this embodiment, install one lower frame body 11 on two adjacent climbing formworks 4; install one hanging frame 12 at the bottom of the lower frame body 11 arranged on the north side of the core tube 10, and vertically install two hanging frames 12 at the bottom of the lower frame body 11 arranged on the south side of the core tube 10; the lower frame body 11 and the hanging frame 12 and the hanging frame 12 and the hanging frame 12 are connected by a straight ladder 13. The climbing formwork 4 includes a vertical guide rail 40 slidably installed on the wall-attached device 1, a lower climbing box 41 installed on the lower frame body 11, an upper climbing box 42 installed on the vertical guide rail 40, and a climbing oil cylinder 43 hinged between the lower climbing box 41 and the upper climbing box 42. The telescopic movement of the climbing oil cylinder 43 drives the lower frame body 11 to move upward to achieve climbing.

[0041] Step three, as Figure 4 shown in the figure, install the upper frame body 5, install the upper frame body 5 at the top of the lower frame body 11. Specifically, when installing, first install the lower platform beam 14 at the top of the lower frame body 11 to provide a foundation for the installation of the upper frame body 5. The upper frame body 5 is vertically assembled by a plurality of upper frame monomers through fasteners. The upper frame monomer includes a plurality of vertically arranged upper support rods 50, upper cross support rods 51 installed on the upper support rods 50, and a horizontal beam frame 52 fixedly installed between two adjacent upper support rods 50, forming a cuboid frame structure. As Figure 5 and Figure 6 shown in the figure, the horizontal beam frame 52 includes a lower U-shaped support member 520, an upper support member 521, and an inverted V-shaped member 522 fixedly connected between the lower U-shaped support member 520 and the upper support member 521. Connection holes 523 are provided on both the lower U-shaped support member 520 and the upper support member 521, and bolts are used to pass through the connection holes 523 and be fixedly connected to the upper support rod 50. It is convenient for disassembly and can be reused repeatedly. The horizontal beam frame 52 improves the structural stability of the upper frame body 5 and ensures the safety of construction.

[0042] Install a horizontal truss 6 between two upper support rods 50 on the same side, and vertically install two or three horizontal trusses 6 at intervals between two upper frame bodies 5 on the same side. Of course, four or more can also be installed. The horizontal truss 6 includes two parallel cross bars 60 and a plurality of vertical bars 61 fixedly connected between the two cross bars 60. The two ends of the cross bar 60 are fixedly installed on the upper frame monomer.

[0043] Step four, as Figure 7As shown in the figure, install the top platform 7, and use the reinforcement connecting beam 15 to reinforce and connect the tops of the upper frameworks 5 arranged oppositely on the north and south sides inside the core tube 10, and install the top platform 7 on the tops of the upper frameworks 5 and the reinforcement connecting beam 15. Specifically, on the top of the reinforcement connecting beam 15 and perpendicular to the length direction of the reinforcement connecting beam 15, install the reinforcement channel steel 16. The reinforcement channel steel 16 and the reinforcement connecting beam 15 form a grid shape to improve the bearing capacity of the top platform 7.

[0044] Step Five, as Figure 8 shown in the figure, add sections to the elevator guide rail 2. The elevator guide rail 2 is composed of multiple standard sections. Add a standard section above the existing elevator guide rail 2, and install the upper cage 17 on the added standard section. The upper cage 17 moves vertically along the elevator guide rail 2 to perform vertical transportation of personnel and materials between the top platform 7 and the lower construction layer. In this embodiment, the upper cage 17 and the lower cage 3 are respectively arranged on the east and west sides of the elevator guide rail 2; the upper cage 17 performs vertical transportation of personnel and materials between the construction layer above the lower cage 3 and the top platform 7; the lower cage 3 performs vertical transportation of personnel and materials between the construction layers below the upper cage 17. Of course, the lower cage 3 and the upper cage 17 interact at the construction layer between the two to achieve overall transportation in the vertical direction.

[0045] Install the vertical slide rail 18 on one side of the elevator guide rail 2; fixedly install the roller rack 8 on the horizontal truss 6, and the other end of the roller rack 8 is slidably installed on the vertical slide rail 18. When the climbing formwork 4 rises vertically, the roller rack 8 slides upward along the vertical slide rail 18. In this implementation, at least two roller racks 8 are arranged on one elevator guide rail 2. After the climbing formwork 4 drives the lower framework 11 to be lifted as a whole, install an auxiliary support for reinforcing the stability of the elevator guide rail 2 between the elevator guide rail 2 and the core tube 10 to ensure the safety of construction.

[0046] As Figure 9 and Figure 10As shown, the roller frame 8 includes a base frame 80, an adapter bracket 81 installed on the back of the base frame 80 through a screw, a main support frame 83 adjustably installed on the front side of the base frame 80 through an adjusting member 82, and a plurality of roller groups 84 installed on the main support frame 83, and the roller group 84 is slidably connected to the vertical slide rail 18. The adjustment amount of the adjusting member 82 is 1cm to 5cm, and specifically, the adjustment amount of the adjusting member 82 is 4cm. The adjusting member 82 includes a left-handed screw 820 fixedly installed on the base frame 80 at one end, a right-handed screw 821 fixedly installed on the main support frame 83 at one end, and an adjusting sleeve 822 threadedly installed on the left-handed screw 820 and the right-handed screw 821. The distance between the main support frame 83 and the base frame 80 is adjusted by rotating the adjusting sleeve 822 to adapt to the installation error caused by uneven road surface when the wall attachment device 1 is installed. In specific implementation, a fastening nut is installed on the left-handed screw 820 and the right-handed screw 821, and after the position adjustment is completed, the fastening nut is used to lock and prevent loosening. In a preferred embodiment, a shock-absorbing spring is arranged between the main support frame 83 and the right-handed screw 821, and the shock-absorbing spring can adapt to a certain distance difference between the vertical slide rail 18 and the roller frame 8. Each roller group 84 includes three rollers, and the vertical slide rail 18 is stuck in the three rollers to ensure the reliability of the connection.

[0047] Step 6: Figures 11 to 14 As shown, a right-side hanger 12 is added. After the climbing formwork 4 climbs two floors, four hangers 12 are vertically installed at the bottom of the lower frame 11 on the side away from the elevator guide rail 2. When an accident occurs during construction, the added hangers 12 also serve as an escape ladder for evacuating workers.

[0048] The above embodiments are only some illustrations 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 construction method for a vertical transportation system inside a core tube, characterized in that: The construction method includes the following steps: Step 1: Install the wall-attached device. Install the wall-attached device at a preset position inside the core tube. The wall-attached device is symmetrically installed in two groups on both sides inside the core tube. Before installing the wall-attached device, the elevator guide rail has been installed in the elevator shaft, and the lower cage is installed on the elevator guide rail. Step 2: Install the lower frame body and the hanging frame. First, install the climbing formwork on the wall-attached device, and then install the lower frame body on the climbing formwork on the same side. After the installation of the lower frame body is completed, install the hanging frame at the bottom of the lower frame body. Step 3: Install the upper frame body. Install the upper frame body on the top of the lower frame body. The upper frame body is vertically assembled by multiple upper frame monomers. Each upper frame monomer includes multiple vertically arranged upper support rods, upper cross support rods installed on the upper support rods, and horizontal beam frames installed between adjacent pairs of upper support rods. Install a horizontal truss between two upper frame bodies on the same side. The horizontal beam frame includes a lower U-shaped support member, an upper support member, and an inverted V-shaped member fixedly connected between the lower U-shaped support member and the upper support member. Connection holes are provided on both the lower U-shaped support member and the upper support member. Step 4: Install the top platform. Use a reinforcement connecting beam to reinforce and connect the upper frame bodies arranged oppositely on both sides inside the core tube, and install the top platform on the top of the upper frame body and the reinforcement connecting beam. Step 5: Add sections to the elevator guide rail. The elevator guide rail is spliced by multiple standard sections. Add a standard section above the existing elevator guide rail, and install the upper cage on the added standard section. The upper cage moves vertically along the elevator guide rail to perform vertical transportation of personnel and materials between the top platform and the lower construction floors. Install a vertical slide rail on one side of the elevator guide rail. Fix and install a roller frame on the horizontal truss, and the other end of the roller frame is slidably installed on the vertical slide rail. When the climbing formwork rises vertically, the roller frame slides upward along the vertical slide rail. Step 6: Add a right-side hanging frame. When the climbing formwork climbs two floors, add a hanging frame at the bottom of the lower frame body on the side away from the elevator guide rail. When a construction accident occurs, the added hanging frame also serves as an escape ladder for evacuating workers.

2. The construction method of the vertical transportation system in the core tube according to claim 1, characterized in that: In Step 1, install four wall-attached devices on the north and south sides inside the core tube respectively; the elevator guide rail is arranged on the north side of the core tube.

3. The construction method of the vertical transportation system in the core tube according to claim 2, characterized in that: In Step 2, install one lower frame body on two adjacent climbing formworks; install one hanging frame at the bottom of the lower frame body arranged on the north side of the core tube, and vertically install two hanging frames at the bottom of the lower frame body arranged on the south side of the core tube; the lower frame body is connected to the hanging frame and the hanging frames are connected to each other through a straight ladder.

4. The construction method of the vertical transportation system inside the core tube according to claim 2 or 3, characterized in that: In Step 3, install two or three horizontal trusses between two upper frame bodies on the same side. The horizontal truss includes two parallel cross bars and multiple vertical bars fixedly connected between the two cross bars. The two ends of the cross bars are fixedly installed on the upper frame monomers.

5. The construction method of the vertical transportation system inside the core tube according to claim 4, characterized in that: In Step 5, the upper cage and the lower cage are respectively arranged on the east and west sides of the elevator guide rail; the upper cage performs vertical transportation of personnel and materials between the construction floor above the lower cage and the top platform; the lower cage performs vertical transportation of personnel and materials between the construction floors below the upper cage.

6. The construction method of the vertical transportation system inside the core tube according to claim 1 or 5, characterized in that: In the fifth step, at least two of the roller frames are arranged on one of the elevator guide rails. After the climbing formwork drives the integral lifting of the lower frame, an auxiliary support for strengthening the stability of the elevator guide rail is installed between the elevator guide rail and the core tube.

7. The construction method of the vertical transportation system inside the core tube according to claim 6, characterized in that: The roller frame includes a base frame, a transfer bracket installed on the back of the base frame, a main support frame adjustably installed on the front side of the base frame through an adjusting member, and a plurality of roller groups installed on the main support frame. The roller groups are slidably connected to the vertical sliding rail.

8. The construction method of the vertical transportation system inside the core tube according to claim 7, characterized in that: The adjustment amount of the adjusting member is 1 cm to 5 cm; the adjusting member includes a left-handed screw installed on the base frame, a right-handed screw installed on the main support frame, and an adjusting sleeve installed on the left-handed screw and the right-handed screw. By rotating the adjusting sleeve, the distance between the main support frame and the base frame is adjusted.

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