Construction method of vertical transportation system in core tube

Abstract

The invention discloses a construction method of a vertical transportation system in a core tube, and relates to the technical field of building construction, and the construction method comprises the following steps: 1, mounting a wall attaching device: mounting the wall attaching device at a preset position in the core tube; secondly, a lower frame body and a hanging frame are installed, creeping formworks are installed on the wall attaching device, the lower frame body is installed on the creeping formwork on the same side, and the hanging frame is installed at the bottom of the lower frame body; thirdly, an upper frame body is installed, and the upper frame body is installed on the top of the lower frame body; fourthly, a top-layer platform is installed, and the top-layer platform is installed on the top of the upper frame body; 5, elevator guide rail section adding is conducted, specifically, standard sections are additionally installed above the existing elevator guide rail, and an upper elevator cage is installed on the additionally-installed standard sections; and sixthly, a right side hanging frame is additionally installed. According to the method, a vertical complete traffic system during core tube construction can be formed, construction elevators and creeping formwork operation do not interfere with each other, floor slabs can be constructed layer by layer, idling of workers is effectively avoided, harmonious connection of multiple construction operations is achieved, the construction efficiency and convenience are improved, and the construction cost is reduced.

Description

Technical Field

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

[0002] In the construction of hydraulic climbing formwork, it is a difficult point to properly handle the relationship between the construction elevator and the hydraulic climbing formwork. At present, the widely adopted measure is to set up a multi-layer lower hanger at the bottom of the climbing formwork frame, lift the construction elevator to the lower hanger platform, and the construction personnel enter the climbing formwork platform from the lower hanger for construction. This method has low requirements for the climbing formwork frame, and no special treatment is required for the climbing formwork frame. The lower hanger can 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, the elevator car is at least 7 meters from the top of the standard section. This distance needs to be compensated by the lower hanger of the climbing formwork. At the same time, considering the gap between the climbing formwork climbing and the installation process of the elevator standard section, at least one floor height safety distance should be reserved, which makes the length of the lower hanger about more than ten meters, and the reuse rate of the lower hanger is low, resulting in certain waste; in this way, the construction personnel can only go up to the lower hanger attached to the climbing formwork, and there are about 10 working platforms to the top platform of the climbing formwork. The construction personnel still need to climb the drilling frame again, which is not conducive to transit transportation. Another commonly used method of getting on the ground is to take the elevator up to the completed horizontal floor, and then climb up to the climbing formwork construction working floor via temporary stairs. The horizontal floor is constructed about 5, 6 or even 10 floors later. This method makes the construction slower. Summary of the invention

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

[0004] To achieve the above object, the present invention adopts the following technical solutions: A construction method for a vertical transportation system in a core tube, the construction method comprising the following steps: Step 1: Install the wall-mounted device at a preset position in the core tube. The wall-mounted device is divided into two groups and symmetrically installed on both sides of the core tube. Before the wall-mounted device is installed, the elevator guide rail has been installed in the elevator shaft, and the lower elevator cage is installed on the elevator guide rail. Step 2: Install the lower frame and the hanging bracket. First, install the climbing formwork on the wall-mounted device, and then install the lower frame on the climbing formwork on the same side. After the lower frame is installed, install the hanging bracket at the bottom of the lower frame. Step three, install the upper frame, install the upper frame on the top of the lower frame, the upper frame is vertically assembled from multiple upper frame monomers, the upper frame monomers include multiple upper support rods arranged vertically, upper cross support rods installed on the upper support rods and horizontal beams installed between two adjacent upper support rods; install a horizontal truss between the two upper frames on the same side; the horizontal beam 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, and connection holes are set on the lower U-shaped support member and the upper support member; Step 4: Install the top platform, use reinforced connecting beams to reinforce the upper frame bodies arranged on both sides of the core tube, and install the top platform on the top of the upper frame body and the reinforced connecting beams; Step 5: Add sections to the elevator guide rails. The elevator guide rails are made of multiple standard sections. A standard section is added on top of the existing elevator guide rails. The upper elevator cage is installed on the added standard section. The upper elevator cage moves vertically along the elevator guide rails to vertically transport personnel and materials between the top platform and the construction layer below. A vertical slide rail is installed on one side of the elevator guide rail. A roller frame is fixedly installed on the horizontal truss, and the other end of the roller frame is slidably installed on the vertical slide rail. When the climbing formwork is vertically raised, the roller frame slides upward along the vertical slide rail. Step six, install the right-side hanging bracket. After the climbing formwork has climbed two floors, install the hanging bracket at the bottom of the lower frame away from the elevator guide rail. When an accident occurs during construction, the installed hanging bracket can also be used as an escape ladder to evacuate workers.

[0005] Preferably, in step one, four wall attachment devices are installed on the north and south sides of the core tube respectively; and the elevator guide rail is arranged on the north side of the core tube.

[0006] Preferably, in step 2, a lower frame is installed on two adjacent climbing formworks; a hanging bracket is installed at the bottom of the lower frame arranged on the north side of the core tube, and two hanging brackets are vertically installed at the bottom of the lower frame arranged on the south side of the core tube; the lower frame and the hanging brackets and the hanging brackets are connected by straight ladders.

[0007] Preferably, in step three, two or three horizontal trusses are installed between two upper frame bodies on the same side, and the horizontal trusses include two parallel cross bars and a plurality of vertical bars fixedly connected between the two cross bars, and both ends of the cross bars are fixedly installed on the upper frame body.

[0008] Preferably, in step five, the upper cage and the lower cage are respectively arranged on the east and west sides of the elevator guide rail; the upper cage is used for vertical transportation of personnel and materials between the construction layer above the lower cage and the top platform; the lower cage is used for vertical transportation of personnel and materials between the construction layers below the upper cage.

[0009] 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.

[0010] 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.

[0011] 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.

[0012] 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.

[0013] 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.

[0014] In step five, the upper and lower ladder cages are used together to connect the top platform with the construction floors below, which is convenient for the transportation of personnel and materials, and can realize the layer-by-layer construction of the floor slabs, thereby improving the construction efficiency. Especially in a small space, the layered operation of the space directly affects the process arrangement and avoids idle work. Going directly from the construction elevator to the top platform effectively ensures the efficiency of personnel directly reaching the main working platform and maximizing the layered construction; it solves the impact of the construction elevator directly going up to the top of the climbing formwork on the structural construction in the prior art, and realizes the simultaneous construction of vertical and horizontal structures, as well as layered construction and other methods, without the need to reserve floor slabs and no structural drop-off construction, effectively avoiding idle work and realizing the harmonious connection of multiple construction operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the installation state of the wall-mounting device in step 1 of the present invention; Figure 2 This is a schematic diagram of the installation status of the lower frame and the hanging bracket in step 2 of the present invention; Figure 3 This is a schematic diagram of the climbing formwork structure of the present invention; Figure 4 This is a schematic diagram of the upper frame installation state in step three of the present invention; Figure 5 It is a schematic diagram of the installation state of the horizontal beam frame structure of the present invention; Figure 6 It is a schematic diagram of the horizontal beam structure of the present invention; Figure 7 This is a schematic diagram of the installation status of the top platform in step 4 of the present invention; Figure 8 This is a schematic diagram of the elevator guide rail adding section state in step 5 of the present invention; Fig. 9 It is a schematic diagram of the structure of the roller frame of the present invention; Fig.10 It is a schematic diagram of the structure of the adjusting member of the present invention; Fig.11 This is a schematic diagram of the state of installing the right side rack in step six of the present invention; Fig.12 This is a schematic diagram of the AA section of the present invention without installing the lower frame and the hanging frame structure; Fig.13 This is a schematic diagram of the BB section of the present invention without installing the lower frame and the hanging frame structure; Fig.14 This is a plan view of the construction status of step six of the present invention; In the figure: 1, wall attachment device; 2, elevator guide rail; 3, lower ladder cage; 4, climbing formwork; 5, upper frame; 6, horizontal truss; 7, top platform; 8, roller frame; 10, core tube; 11, lower frame; 12, hanging frame; 13, straight ladder; 14, lower platform beam; 15, reinforcement connecting beam; 16, reinforcement channel steel; 17, upper ladder cage; 18, vertical slide rail; 40, vertical guide rail; 41, lower climbing box; 42, upper climbing box; 43. Climbing cylinder; 50. Upper support rod; 51. Upper cross support rod 52. Horizontal beam frame; 60. Cross bar; 61. Vertical bar; 80. Basic frame; 81. Adapter bracket; 82. Adjustment piece; 83. Main support frame; 84. Roller assembly; 520. Lower U-shaped support piece; 521. Upper support piece; 522. Inverted V-shaped piece; 523. Connecting hole; 820. Left-hand screw; 821. Right-hand screw; 822. Adjustment sleeve. DETAILED DESCRIPTION

[0016] The present invention will be further described below in conjunction with the accompanying drawings: A construction method for a vertical transportation system in a core tube, the construction method comprising the following steps: Step 1: Install the wall-mounted device 1, such as Figure 1 As shown, the wall-mounted device 1 is installed at a preset position in the core tube 10 by anchor bolts. The wall-mounted device 1 is symmetrically installed on both sides of the core tube 10 in two groups. Before the wall-mounted device 1 is installed, the elevator guide rail 2 has been installed in the elevator shaft. The lower elevator cage 3 is installed on the elevator guide rail 2. Figure 1 The elevator guide rail 2 and the lower cage 3 are not shown. In this embodiment, in step 1, four wall-mounted devices 1 are installed on the north and south sides of the core tube 10, and the elevator guide rail 2 is arranged on the north side of the core tube. After the wall-mounted devices 1 are installed, the verticality is adjusted so that the verticality error of the eight wall-mounted devices 1 is within the design range.

[0017] Step 2, such as Figure 2 and Figure 3As shown, the lower frame 11 and the hanging rack 12 are installed. The climbing formwork 4 is first installed on the wall attachment device 1, and the lower frame 11 is installed on the climbing formwork 4 on the same side. After the lower frame 11 is installed, the hanging rack 12 is installed at the bottom of the lower frame 11. In this embodiment, one lower frame 11 is installed on two adjacent climbing formworks 4; one hanging rack 12 is installed at the bottom of the lower frame 11 set on the north side of the core tube 10, and two hanging racks 12 are vertically installed at the bottom of the lower frame 11 set on the south side of the core tube 10; the lower frame 11 and the hanging rack 12 and the hanging racks 12 are connected by a straight ladder 13. The climbing formwork 4 includes a vertical guide rail 40 slidably installed on the wall attachment device 1, a lower climbing box 41 installed on the lower frame 11, an upper climbing box 42 installed on the vertical guide rail 40, and a climbing cylinder 43 hingedly installed between the lower climbing box 41 and the upper climbing box 42. The lower frame 11 is driven to move upward by the extension and retraction of the climbing cylinder 43 to achieve climbing.

[0018] Step three, such as Figure 4 As shown, the upper frame 5 is installed on the top of the lower frame 11. When installing, first install the lower platform beam 14 on the top of the lower frame 11 to provide a foundation for the installation of the upper frame 5. The upper frame 5 is vertically assembled by multiple upper frame units through fasteners. The upper frame units include multiple upper support rods 50 arranged vertically, upper cross support rods 51 installed on the upper support rods 50, and horizontal beam frames 52 fixedly installed between two adjacent upper support rods 50, forming a rectangular frame structure. Figure 5 and Figure 6 As shown, 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 the lower U-shaped support member 520 and the upper support member 521. Bolts are used to pass through the connection holes 523 to be fixedly connected to the upper support rod 50. It is easy to disassemble and can be repeatedly used. The horizontal beam frame 52 improves the stability of the upper frame body 5 structure and ensures the safety of construction.

[0019] A horizontal truss 6 is installed between the two upper support rods 50 on the same side, and two or three horizontal trusses 6 are installed vertically between the two upper frame bodies 5 on the same side. Of course, four or more horizontal trusses can also be installed. The horizontal truss 6 includes two parallel cross bars 60 and multiple vertical bars 61 fixedly connected between the two cross bars 60. Both ends of the cross bar 60 are fixedly installed on the upper frame body.

[0020] Step 4: Figure 7As shown, the top platform 7 is installed, the top of the upper frame 5 arranged opposite to each other on the north and south sides of the core tube 10 is reinforced and connected using the reinforced connecting beams 15, and the top platform 7 is installed on the top of the upper frame 5 and the reinforced connecting beams 15. Specifically, a reinforced channel steel 16 is arranged on the top of the reinforced connecting beam 15 and perpendicular to the length direction of the reinforced connecting beam 15, and the reinforced channel steel 16 and the reinforced connecting beam 15 form a lattice shape to improve the bearing capacity of the top platform 7.

[0021] Step 5: Figure 8 As shown, the elevator guide rail 2 is added with sections, and the elevator guide rail 2 is spliced ​​with multiple standard sections. The standard section is installed above the existing elevator guide rail 2, and the upper ladder cage 17 is installed on the installed standard section. The upper ladder cage 17 moves vertically along the elevator guide rail 2 to vertically transport personnel and materials between the top platform 7 and the construction layer below. In this embodiment, the upper ladder cage 17 and the lower ladder cage 3 are arranged on the east and west sides of the elevator guide rail 2 respectively; the upper ladder cage 17 is used for vertical transportation of personnel and materials between the construction layer above the lower ladder cage 3 and the top platform 7; the lower ladder cage 3 is used for vertical transportation of personnel and materials between the various construction layers below the upper ladder cage 17. Of course, the lower ladder cage 3 and the upper ladder cage 17 interact at the construction layer between the two to achieve overall transportation in the vertical direction.

[0022] A vertical slide rail 18 is installed on one side of the elevator guide rail 2; a roller frame 8 is fixedly installed on the horizontal truss 6, and the other end of the roller frame 8 is slidably installed on the vertical slide rail 18. When the climbing formwork 4 is vertically raised, the roller frame 8 slides upward along the vertical slide rail 18. In this embodiment, at least two roller frames 8 are arranged on one elevator guide rail 2. When the climbing formwork 4 drives the lower frame 11 to be lifted as a whole, an auxiliary bracket for reinforcing the stability of the elevator guide rail 2 is installed between the elevator guide rail 2 and the core tube 10 to ensure the safety of the construction.

[0023] like Fig. 9 and Fig.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.

[0024] 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.

[0025] 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 in a core tube, characterized in that: The construction method includes the following steps: Step 1: Install the wall-mounted device at a preset position in the core tube. The wall-mounted device is divided into two groups and symmetrically installed on both sides of the core tube. Before the wall-mounted device is installed, the elevator guide rail has been installed in the elevator shaft, and the lower elevator cage is installed on the elevator guide rail. Step 2: Install the lower frame and the hanging bracket. First, install the climbing formwork on the wall-mounted device, and then install the lower frame on the climbing formwork on the same side. After the lower frame is installed, install the hanging bracket at the bottom of the lower frame. Step three, install the upper frame, install the upper frame on the top of the lower frame, the upper frame is vertically assembled from multiple upper frame monomers, the upper frame monomers include multiple upper support rods arranged vertically, upper cross support rods installed on the upper support rods and horizontal beams installed between two adjacent upper support rods; install a horizontal truss between the two upper frames on the same side; the horizontal beam 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, and connection holes are set on the lower U-shaped support member and the upper support member; Step 4: Install the top platform, use reinforced connecting beams to reinforce the upper frame bodies arranged on both sides of the core tube, and install the top platform on the top of the upper frame body and the reinforced connecting beams; Step 5: Add sections to the elevator guide rails. The elevator guide rails are made of multiple standard sections. A standard section is added on top of the existing elevator guide rails. The upper elevator cage is installed on the added standard section. The upper elevator cage moves vertically along the elevator guide rails to vertically transport personnel and materials between the top platform and the construction layer below. A vertical slide rail is installed on one side of the elevator guide rail. A roller frame is fixedly installed on the horizontal truss, and the other end of the roller frame is slidably installed on the vertical slide rail. When the climbing formwork is vertically raised, the roller frame slides upward along the vertical slide rail. Step six, install the right-side hanging bracket. After the climbing formwork has climbed two floors, install the hanging bracket at the bottom of the lower frame away from the elevator guide rail. When an accident occurs during construction, the installed hanging bracket can also be used as an escape ladder to evacuate workers.

2. The construction method of the vertical transportation system in the core tube according to claim 1 is characterized in that: In the step 1, four wall attachment devices are respectively installed on the north and south sides of the core tube; and 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 is characterized in that: In the step 2, a lower frame is installed on two adjacent climbing formworks; a hanging bracket is installed at the bottom of the lower frame arranged on the north side of the core tube, and two hanging brackets are vertically installed at the bottom of the lower frame arranged on the south side of the core tube; the lower frame and the hanging brackets and the hanging brackets are connected by straight ladders.

4. The construction method of the vertical transportation system in the core tube according to claim 2 or 3, characterized in that: In step three, two or three horizontal trusses are installed between two upper frame bodies on the same side, and the horizontal trusses include two parallel cross bars and a plurality of vertical bars fixedly connected between the two cross bars, and both ends of the cross bars are fixedly installed on the upper frame body.

5. The construction method of the vertical transportation system in the core tube according to claim 4 is characterized in that: In step five, the upper cage and the lower cage are arranged on the east and west sides of the elevator guide rail respectively; the upper cage is used for vertical transportation of personnel and materials between the construction layer above the lower cage and the top platform; the lower cage is used for vertical transportation of personnel and materials between the construction layers below the upper cage.

6. The construction method of the vertical transportation system in the core tube according to claim 1 or 5, characterized in that: In the step five, at least two roller frames are arranged on one of the elevator guide rails. When the climbing formwork drives the lower frame to be lifted 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.

7. The construction method of the vertical transportation system in the core tube according to claim 6 is characterized in that: 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, wherein the roller groups are slidably connected to the vertical slide rail.

8. The construction method of the vertical transportation system in the core tube according to claim 7 is characterized in that: The adjustment amount of the adjusting member is 1cm~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. The distance between the main support frame and the basic frame can be adjusted by rotating the adjusting sleeve.

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