Large-span steel corridor structure and construction device

Abstract

The application relates to the technical field of corridors, and discloses a large-span steel corridor structure and a construction device. The large-span steel corridor structure comprises a buttress, a roof unit supported by the buttress and comprising a plurality of sequentially spliced roof segment components, a bridge surface unit located below the roof unit and comprising a plurality of sequentially spliced bridge surface segment components, a suspender connected between the roof segment component and the bridge surface segment component and provided with a plurality of suspenders along the length direction of the roof unit, a cable with two ends connected with the roof segment component and subjected to tensioning, and a compression rod supported between the roof segment component and the cable and provided with a plurality of compression rods along the length direction of the cable; and a passing space is formed between the roof unit and the bridge surface unit.

Description

Technical Field

[0001] This application relates to the technical field of connecting corridors, and in particular to a large-span steel connecting corridor structure and construction device. Background Technology

[0002] Connecting corridors, as horizontal traffic structures linking adjacent buildings or building units, are widely used in various types of buildings such as commercial complexes, office buildings, and residential communities. Currently, large-span connecting corridor structures mainly adopt the form of steel trusses or steel box girders. Steel trusses consist of upper and lower chords and web members, with a large number of members, a large amount of steel consumption, and a heavy weight, making on-site hoisting difficult. Summary of the Invention

[0003] Firstly, this application provides a large-span steel connecting corridor structure, employing the following technical solution: A large-span steel connecting corridor structure, comprising: buttress; The roof unit, supported by the piers, comprises multiple roof segment components that are spliced ​​together sequentially; The bridge deck unit, located below the roof unit, comprises multiple bridge deck segment components that are spliced ​​together sequentially; Hangers are connected between the roof segment component and the bridge deck segment component, and multiple hangers are provided along the length direction of the roof unit; The cables, connected at both ends to the roof segment components, are tensioned; and Compression bars are provided between the roof segment members and the cables, and multiple bars are provided along the length of the cables; A passageway is formed between the roof unit and the bridge deck unit.

[0004] In the aforementioned technical solution, by installing hangers, cables, and compression members between the roof units and the bridge deck units, a tensioned beam stress system is formed, effectively improving the bending stiffness of the roof units and reducing their deflection deformation under dead and live loads. Simultaneously, the structure employs a segmental component splicing method, facilitating transportation and on-site hoisting, and reducing construction difficulty. The prestress generated after cable tensioning can work in conjunction with the compression members to optimize the stress distribution of the roof units, reduce steel consumption, lighten self-weight, and improve the structure's economy and safety.

[0005] Optionally, the cable has two strands and is located on both sides of the roof unit.

[0006] In the above technical solution, by setting a cable on each side of the roof unit, the tensioned beam system is symmetrically arranged in the width direction of the roof, which can more evenly bear the distribution of internal forces caused by external loads and temperature changes, and avoid structural deformation or torsion caused by eccentric force.

[0007] Secondly, this application provides a construction device, which adopts the following technical solution: A construction device, comprising: applicable to the construction process of the above-described large-span connecting corridor structure, used to assist in the alignment of two adjacent roof segment components or two adjacent bridge deck segment components, comprising: a bracket and a support unit, wherein the bracket is erected between the segment component and the support platform below the segment component, the bracket is located at the junction below two adjacent segment components, each bracket corresponds to two support units, and the two support units are distributed sequentially along the distribution direction of the segment components; Each of the support units includes a lifting power source, a support, and ball bearings; the lifting power source is located at the top of the bracket and is used to support the support and adjust the height of the support vertically; the ball bearings are rotatably connected to the support and are arranged in an array of multiple bearings.

[0008] In the above technical solution, by setting two support units on the bracket and corresponding to adjacent components respectively, and cooperating with the lifting power adjustment support height and ball bearing array, precise control of component height and low-friction horizontal movement are achieved. The ball bearing structure effectively reduces the resistance of components during the adjustment process, avoids surface damage to components, and improves the accuracy and efficiency of splicing and alignment. This device is particularly suitable for temporary support and fine-tuning during the hoisting of large-span steel corridor segment components, significantly reducing the difficulty of manual alignment and hoisting risks.

[0009] Optionally, the support unit further includes a telescopic power source and a blocking frame; the telescopic power source is mounted on the support, and the telescopic power source supports the blocking frame through its telescopic end; the upper surface of the blocking frame is a support plane; When the telescopic power extension end retracts, the support plane is lower than the apex of the ball; when the telescopic power extension end extends upward, the support plane is flush with the apex of the ball.

[0010] In the above technical solution, by adding a telescopic power unit and a shifting frame, after the component position is adjusted, the shifting frame can rise to be flush with the top of the ball bearing, changing the component from rolling support to planar contact support. Friction restricts its horizontal movement, making it less likely for the component to shift due to external forces during welding or fixing. Simultaneously, the shifting frame and the ball bearing can work alternately, balancing flexibility in the adjustment phase with reliability in the positioning phase.

[0011] Optionally, the support unit further includes an adsorption plate and an elastic element; the adsorption plate is made of elastic rubber, and the adsorption plate array is distributed on the blocking frame. The upper surface of the blocking frame is provided with a clearance groove corresponding to each adsorption plate to make way for the adsorption plate; the elastic element is located in the clearance groove and between the adsorption plate and the blocking frame to give the adsorption plate an upward tendency. When the telescopic force retracts, the adsorption disk is higher than the support plane and lower than the apex of the ball; when the telescopic force extends upward and the ball supports the segment component, the adsorption disk first abuts against the segment component and adsorbs onto the segment component, and then the blocking frame also abuts against the segment component and causes the adsorption disk to enter the clearance groove.

[0012] In the above technical solution, by setting an elastic rubber adsorption plate and elastic element on the resisting frame, the adsorption plate first contacts the component and forms a vacuum adsorption during the upward movement of the resisting frame. Subsequently, the resisting frame supports the plane contacting the component, thereby enhancing the component's anti-slip capability on the resisting frame.

[0013] Optionally, the support unit further includes a guide member disposed between the adsorption disk and the blocking frame, for guiding the vertical movement of the adsorption disk.

[0014] In the above technical solution, the vertical movement of the adsorption disk is guided by a guide component, so that the adsorption disk maintains the correct position and posture during multiple lifting and lowering processes.

[0015] Optionally, the support unit further includes a pull rope connected between the outer periphery of the adsorption disk and the blocking frame; when the adsorption disk is not in contact with the segment component, the pull rope is taut, and the periphery of the adsorption disk is pulled downward by the pull rope and flips over; when the adsorption disk is located in the relief groove, the pull rope is slack, and the periphery of the adsorption disk fits against the segment component.

[0016] In the above technical solution, by setting a pull rope to connect the outer periphery of the adsorption plate to the displacement frame, the adsorption plate is in a flipped-edge state when it is not in contact with the component, which reduces the air resistance when in contact with the component and facilitates rapid exhaust to form adsorption; when the adsorption plate is compressed into the relief groove, the pull rope loosens, and the periphery of the adsorption plate fits against the component, enhancing the sealing effect.

[0017] Optionally, the construction device further includes an adjustment unit disposed between the segmental member and the support platform; the adjustment unit includes a first base, a second base, and an adjustment component; the first base is installed at the bottom of the segmental member, the second base is installed at the top of the support platform, and the adjustment component is installed between the first base and the second base for adjusting the planar position of the segmental member.

[0018] In the above technical solution, by setting an adjustment unit between the component and the support platform, and by utilizing the cooperation of the first base, the second base and the adjustment component, the planar position of the component can be adjusted when it is supported by ball bearings.

[0019] Optionally, the adjustment assembly between the first base and the second base has multiple sets, each set of the adjustment assembly including a connecting rope, a take-up shaft, a rotating seat, and a rotational power source; one end of the connecting rope is connected to the first base, and the other end of the connecting rope is wound onto the take-up shaft; the rotating seat is rotatably mounted on the second base, and the rotational power source is used to drive the rotating seat to rotate; the take-up shaft is mounted on the rotating seat.

[0020] In the above technical solution, the movement of the component in the horizontal plane is achieved by controlling the winding of the connecting rope in different directions through multiple sets of adjustment components.

[0021] Optionally, the rotating seat is detachably connected to the winding shaft.

[0022] In summary, this application includes at least one of the following beneficial effects: 1. The tensioned beam stress system, consisting of roof units, bridge deck units, hangers, cables and compression members, significantly improves the bending stiffness and load-bearing capacity of the long-span connecting corridor structure, reduces deflection deformation, and at the same time reduces steel consumption and structural self-weight, thus improving construction convenience. 2. The construction device, through the interchangeable design of ball bearing support and displacement frame, as well as the vacuum-assisted fixation of the adsorption plate, achieves the dual functions of flexible adjustment and stable positioning of components during hoisting, thereby improving splicing accuracy and construction safety. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of this application; Figure 2 This is a structural schematic diagram of the bridge deck segment component in Embodiment 1 of this application; Figure 3 yes Figure 1 Enlarged structural diagram at point A; Figure 4 This is a schematic diagram of the structure of Embodiment 2 of this application; Figure 5 yes Figure 4 Enlarged structural diagram at point B; Figure 6 This is a top view of the cooperation between the support and the blocking frame in Embodiment 2 of this application; Figure 7 yes Figure 6 Cross-sectional view at point CC; Figure 8 This is a schematic diagram of the structure of the adjustment unit in Embodiment 2 of this application; Figure 9 yes Figure 8 A magnified structural diagram at point D.

[0024] Explanation of reference numerals in the attached drawings: 1. Pier; 2. Roof unit; 21. Roof segment component; 3. Bridge deck unit; 31. Bridge deck segment component; 4. Hanger; 5. Cable; 6. Compression rod; 7. Bracket; 8. Support unit; 81. Lifting power; 82. Support; 83. Ball bearing; 84. Telescopic power; 85. Displacement frame; 86. Adsorption plate; 87. Elastic element; 88. Guide element; 881. Guide rod; 882. Guide sleeve; 89. Pull rope; 9. Support platform; 10. Support plane; 11. Clearance groove; 12. First base; 13. Second base; 14. Adjustment component; 141. Connecting rope; 142. Rewind shaft; 143. Rotating seat; 144. Rotation power; 15. Mounting seat. Detailed Implementation

[0025] The following is in conjunction with the appendix Figure 1 To be continued Figure 9 This application will be described in further detail.

[0026] Example 1:

[0027] This application discloses a large-span steel connecting corridor structure. (Refer to...) Figure 1 A large-span steel connecting corridor structure includes piers 1, roof units 2, bridge deck units 3, hangers 4, cables 5, and compression members 6.

[0028] Reference Figure 1 and Figure 2 Two piers 1 are installed along the designed length of the connecting corridor to support the roof unit 2, which is located above the bridge deck unit 3, forming a passageway between them. The roof unit 2 comprises multiple sequentially spliced ​​roof segment components 21, which are steel beams. Adjacent roof segment components 21 are connected by welding. After being spliced ​​together, multiple roof segment components 21 form a continuous roof structure, with glass or decorative panels installed on top to provide upper coverage for the entire connecting corridor and bear external loads such as snow and rainwater. The bridge deck unit 3 comprises multiple sequentially spliced ​​bridge deck segment components 31, which are steel beams. Adjacent bridge deck segment components 31 are connected by welding. After being spliced ​​together, multiple bridge deck segment components 31 form a continuous bridge deck structure, with the roof beam unit being heavier than the bridge deck beam unit. In this embodiment, both the roof beam unit and the bridge deck beam unit have six segmental members, and the roof segmental member 21 corresponds one-to-one with the bridge deck segmental member 31.

[0029] Reference Figure 1 and Figure 3The hanger 4 is a steel pipe. The hanger 4 is vertically connected between the roof segment component 21 and the bridge segment component 31 by a pin. There are two rows of hangers 4. The two rows of hangers 4 are located on both sides of the width direction of the roof unit 2. Each row of hangers 4 is spaced out along the length direction of the roof unit 2.

[0030] The cable 5 uses steel strand supports 82. Both ends of the cable 5 are connected to the two roof segment members 21 of the roof unit 2 via anchors, and both ends of the cable 5 are close to the two supports 1. After installation, the cable 5 is tensioned to generate the preload required by the design. Simultaneously, there are two cables 5, located on both sides of the roof unit 2, to better balance the stress on the roof unit 2. The compression rod 6 is a steel pipe, vertically supporting the roof segment member 21 between the cable 5, and multiple compression rods 6 are spaced apart along the length of the roof segment member 21.

[0031] The cable 5 and the compression member 6 together form a tensioned beam load-bearing system, which can improve the bending stiffness of the roof unit 2 and reduce the deflection deformation of the small roof unit 2 under dead load and live load. At the same time, this load-bearing system can reduce the cross-sectional dimensions of the small roof segment members 21, so that the steel consumption of the entire corridor structure is reduced compared with the traditional steel truss corridor, the structural self-weight is reduced, and the on-site hoisting operation is safer and more convenient.

[0032] During the construction of the connecting corridor, the following steps are taken: first, the piers are installed; then, the construction platform is erected in sequence; supports are set up on the construction platform; bridge deck segment components 31 are hoisted and placed on the supports and welded in sequence; supports are set up on the bridge deck segments; roof segment components 21 are hoisted and placed on the supports and welded in sequence; hangers 4 are installed; cables 5 and pressure bars 6 are installed; cables 5 are tensioned; excess supports are removed; and curtain wall construction is carried out.

[0033] The implementation principle of a large-span steel corridor structure in this application embodiment is as follows: the roof unit 2 and the bridge deck unit 3 are each composed of multiple segmental components spliced ​​together, and the two are connected by hangers 4 to form an integral force-bearing system. After tensioning, the cables 5 together with the compression members 6 form a tensioned beam structure, so that the roof unit 2 generates an upward pre-tensioned arch under the load, which offsets part of the deflection deformation.

[0034] Example 2:

[0035] This application discloses a construction device applicable to the construction process of the above-mentioned large-span connecting corridor structure. It is mainly used to support the segmental components during the hoisting process of the segmental components of the large-span steel connecting corridor and to assist the splicing and alignment of adjacent roof segmental components 21 or adjacent bridge deck segmental components 31.

[0036] Reference Figure 4Specifically, the construction device includes a support frame 7 and supporting units 8. The support frame 7 is a truss structure welded from steel sections, and its height is designed according to the distance between the supporting platform 9 and the bottom of the segmental component. The support frame 7 is erected on the supporting platform 9 below the two segmental components to be spliced, and is located below the splicing junction of the two segmental components. Specifically, when hoisting the bridge deck segmental component 31, the construction platform serves as the supporting platform 9; when hoisting the roof segmental component 21, the bridge deck segmental component 31 serves as the supporting platform 9. Each support frame 7 is provided with two supporting units 8, which are distributed sequentially along the length of the segmental component, supporting two adjacent segmental components respectively. The supporting units 8 of two adjacent construction devices that are close to each other jointly support the segmental component.

[0037] Reference Figure 4 , Figure 5 and Figure 6 Each support unit 8 includes a lifting power source 81, a support 82, and ball bearings 83. The lifting power source 81 is a hydraulic jack, bolted to the top beam of the bracket 7. The piston rod of the lifting power source 81 extends upward, its top end fixedly connected to the bottom of the support 82, driving the support 82 to move vertically up and down, thus precisely adjusting the height of the support 82. The support 82 is made of steel, possessing sufficient load-bearing capacity and resistance to deformation. Multiple ball bearings 83 are rotatably connected to the support 82 and arranged in an array. The ball bearings 83 can be made of steel balls, which have a smooth surface, rotate flexibly, and their tops protrude from the upper surface of the support 82. When the segment component is placed on the ball bearings 83, the ball bearings 83 reduce the friction between the segment component and the support 82, facilitating the horizontal alignment of the segment component.

[0038] In two adjacent segment components, when one segment component is hoisted and the other segment component is hoisted, the jacking power 81 will lift the support 82 to a height above the upper surface of the already hoisted segment component, so as to facilitate the lowering and position adjustment of the hoisted segment component, and to prevent collision with adjacent segment components during the position adjustment process.

[0039] The support unit 8 also includes a telescopic power unit 84 and a blocking frame 85. The telescopic power unit 84 is a multi-stage electric push rod, vertically mounted on the support 82. The telescopic end of the telescopic power unit 84 is fixedly connected to the bottom of the blocking frame 85. The blocking frame 85 is a rectangular frame structure, with its upper surface machined into a flat support plane 10. When the telescopic end of the telescopic power unit 84 is fully retracted, the support plane 10 of the blocking frame 85 is lower than the apex of the ball bearing 83. At this time, the segment component is completely supported by the ball bearing 83 and can be freely adjusted in horizontal position. When the telescopic end of the telescopic power unit 84 is fully extended upwards, the support plane 10 of the blocking frame 85 is exactly flush with the apex of the ball bearing 83. At this time, the blocking frame 85 abuts against the bottom surface of the segment component. Through the friction between the blocking frame 85 and the segment component, the segment component is not easily moved horizontally.

[0040] Reference Figure 6 and Figure 7 The support unit 8 also includes an adsorption plate 86 and an elastic element 87. The adsorption plate 86 is trumpet-shaped and made of elastic rubber, possessing good elasticity, wear resistance, and sealing performance. Multiple adsorption plates 86 are arrayed on the blocking frame 85, and the adsorption plates 86 move on the blocking frame 85 via guide elements 88. The upper surface of the blocking frame 85 has circular clearance grooves 11 corresponding to the adsorption plates 86. The diameter of the clearance grooves 11 is larger than the diameter of the adsorption plates 86, and the depth is larger than the thickness of the adsorption plates 86, providing sufficient space for the vertical movement of the adsorption plates 86. The guide element 88 includes a guide rod 881 and a guide sleeve 882. The guide rod 881 is fixed at the center of the bottom of the adsorption plate 86, and the guide sleeve 882 is fixed in the clearance groove 11. The guide rod 881 slides vertically within the guide sleeve 882.

[0041] The elastic element 87 is a spring located inside the relief groove 11. Specifically, the two ends of the elastic element 87 are connected to the bottom wall of the guide sleeve 882 and the bottom of the guide rod 881, respectively. The elastic force of the elastic element 87 gives the guide rod 881 an upward tendency, which in turn gives the adsorption plate 86 an upward tendency.

[0042] In its natural state, the elastic element 87 pushes the adsorption plate 86 upward out of the clearance groove 11. At this time, the upper surface of the adsorption plate 86 is higher than the support plane 10 of the blocking frame 85. Simultaneously, when the telescopic force 84 is in the retracted state, the upper surface of the adsorption plate 86 is lower than the apex of the ball 83. When the telescopic force 84 extends upward, the adsorption plate 86 will first contact the lower surface of the segment component. As the telescopic force 84 continues to extend, the elastic element 87 is gradually compressed, and the adsorption plate 86 enters the clearance groove 11 until the support plane 10 of the blocking frame 85 contacts the segment component.

[0043] During the process of the adsorption disk 86 contacting the segment component and being compressed, the air between the adsorption disk 86 and the lower surface of the segment component is completely squeezed out, forming a good initial sealing state to further restrict the horizontal movement of the segment component and improve the stability of the segment component.

[0044] The support unit 8 also includes pull ropes 89, with multiple pull ropes 89 evenly arranged along the circumference of each adsorption plate 86. One end of the pull rope 89 is fixed to the outer peripheral edge of the adsorption plate 86, and the other end is fixed to a corresponding fixing point on the wall of the clearance groove 11. When the adsorption plate 86 is not in contact with the segment component, the pull rope 89 is in a taut state, pulling the periphery of the adsorption plate 86 downward, causing the adsorption plate 86 to be in a downward-folded state. This state can reduce the air resistance when the adsorption plate 86 contacts the segment component, facilitating the rapid expulsion of air.

[0045] When the adsorption plate 86 is compressed into the relief groove 11, the pull rope 89 becomes relaxed, and the periphery of the adsorption plate 86 returns to its flat state under its own elasticity, tightly adhering to the lower surface of the segment component, further enhancing the sealing effect and improving the magnitude and stability of the adsorption force. The pull rope 89 also prevents the adsorption plate 86 from being completely ejected from the relief groove 11 under the action of the elastic element 87, ensuring that the adsorption plate 86 is in the correct working position.

[0046] When it is necessary to detach the retaining frame 85 from the adsorption plate 86 of the segment component, the telescopic end of the telescopic power 84 retracts. During the process, the retaining frame 85 moves downward first, and the adsorption plate 86 still abuts against the segment component under the force of the elastic element 87. Then the retaining frame 85 continues to descend until the pull rope 89 is tensioned. The retaining frame 85 drives the periphery of the adsorption plate 86 to flip downward and detach from the segment component through the pull rope 89, so that the adsorption plate 86 and the segment component can be connected to the atmosphere. Then the adsorption plate 86 is completely detached from the segment component.

[0047] Reference Figure 4 , Figure 8 and Figure 9 The construction device also includes an adjustment unit disposed between the segment component and the support platform 9. The adjustment unit is used to adjust the planar position of the segment component when the segment component is supported by the ball bearings 83.

[0048] Specifically, the adjustment unit includes a first base 12, a second base 13, and an adjustment assembly 14. The first base 12 is detachably mounted at the bottom center of the segment member by bolts, the second base 13 is fixedly mounted on the top of the support platform 9 by bolts, and the adjustment assembly 14 is disposed between the first base 12 and the second base 13.

[0049] Multiple sets of adjustment components 14 are provided between the first base 12 and the second base 13. They are arranged at multiple positions of the segmental component and at different installation angles, which can realize the movement and adjustment of the segmental component in any direction in the plane. In this embodiment, there are four sets of adjustment components 14, which are arranged in a square.

[0050] Each adjustment assembly 14 includes a connecting rope 141, a take-up shaft 142, a rotating seat 143, and a rotational power source 144. One end of the connecting rope 141 is fixedly connected to the first base 12, and the other end is wound onto the take-up shaft 142. The rotating seat 143 is rotatably mounted on the second base 13 via a mounting base 15. The rotational power source 144 is a servo motor, with its base mounted on the mounting base 15. Its output end is coaxially connected to the rotating seat 143 to drive the rotating seat 143 to rotate. The rotation axis of the rotating seat 143 is horizontal. The take-up shaft 142 is detachably connected to the rotating seat 143 via flange bolts. When the rotational power source 144 drives the rotating seat 143 to rotate, the take-up shaft 142 rotates accordingly, realizing the winding and unwinding of the connecting rope 141.

[0051] By controlling the rotation speed, direction, and number of rotations of the rotational power 144 of different adjustment components 14, the winding length of the connecting ropes 141 in each direction can be precisely controlled, thereby pulling the segment component to move horizontally and adjusting the horizontal position of the segment component. Before hoisting the segment component, the first base 12 is installed on the segment component. After the segment component hoisting device is placed on the ball bearings 83, the winding shaft 142 is installed on the rotating seat 143. At this time, the connecting ropes 141 are in a slack state. Subsequently, the position of the segment component is adjusted by winding and tensioning each connecting rope 141. After the position of the segment component is adjusted and all connecting ropes 141 are tensioned, the blocking frame 85 is moved to a position against the segment component to restrict its horizontal movement.

[0052] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A large-span steel connecting corridor structure, characterized in that, include: buttress; The roof unit, supported by the piers, comprises multiple roof segment components that are spliced ​​together sequentially; The bridge deck unit, located below the roof unit, comprises multiple bridge deck segment components that are spliced ​​together sequentially; Hangers are connected between the roof segment component and the bridge deck segment component, and multiple hangers are provided along the length direction of the roof unit; The cables are connected at both ends to the roof segment components and are tensioned. as well as Compression bars are provided between the roof segment members and the cables, and multiple bars are provided along the length of the cables; A passageway is formed between the roof unit and the bridge deck unit.

2. The large-span steel connecting corridor structure according to claim 1, characterized in that: The cable has two strands, located on both sides of the roof unit.

3. A construction device, applicable to the construction process of the large-span connecting corridor structure described in 1 or 2 above, used to assist in the alignment of adjacent roof segment components or adjacent bridge deck segment components, characterized in that, include: The bracket and support unit are provided. The bracket is erected between the segmental member and the support platform below the segmental member. The bracket is located at the junction below two adjacent segmental members. Each bracket corresponds to two support units. The two support units are distributed sequentially along the distribution direction of the segmental member. Each of the support units includes a lifting power source, a support, and ball bearings; the lifting power source is located at the top of the bracket and is used to support the support and adjust the height of the support vertically. The ball bearings are rotatably connected to the support and are arranged in an array.

4. A construction device according to claim 3, characterized in that: The support unit also includes a telescopic power unit and a blocking frame; the telescopic power unit is installed on the support, and the telescopic power unit supports the blocking frame through its telescopic end; the upper surface of the blocking frame is a support plane; When the telescopic power extension end retracts, the support plane is lower than the apex of the ball; when the telescopic power extension end extends upward, the support plane is flush with the apex of the ball.

5. A construction device according to claim 4, characterized in that: The support unit also includes an adsorption plate and an elastic element; the adsorption plate is made of elastic rubber, and the adsorption plate array is distributed on the blocking frame. The upper surface of the blocking frame has a clearance groove that corresponds one-to-one with the adsorption plate to make way for the adsorption plate; the elastic element is located in the clearance groove and between the adsorption plate and the blocking frame to give the adsorption plate an upward tendency. When the telescopic force retracts, the adsorption disk is higher than the support plane and lower than the apex of the ball; when the telescopic force extends upward and the ball supports the segment component, the adsorption disk first abuts against the segment component and adsorbs onto the segment component, and then the blocking frame also abuts against the segment component and causes the adsorption disk to enter the clearance groove.

6. A construction device according to claim 5, characterized in that: The support unit also includes a guide member disposed between the adsorption disk and the blocking frame, which is used to guide the vertical movement of the adsorption disk.

7. A construction device according to claim 5, characterized in that: The support unit also includes a pull rope, which is connected between the outer periphery of the adsorption disk and the blocking frame. When the adsorption disk is not in contact with the segment component, the pull rope is taut, and the periphery of the adsorption disk is pulled downward by the pull rope and flips over. When the adsorption disk is located in the relief groove, the pull rope is slack, and the periphery of the adsorption disk fits against the segment component.

8. A construction device according to claim 3, characterized in that: The construction device also includes an adjustment unit disposed between the segmental component and the support platform; the adjustment unit includes a first base, a second base, and an adjustment component; the first base is installed at the bottom of the segmental component, the second base is installed at the top of the support platform, and the adjustment component is installed between the first base and the second base for adjusting the planar position of the segmental component.

9. A construction device according to claim 8, characterized in that: The adjustment assembly between the first base and the second base has multiple sets, each set of the adjustment assembly includes a connecting rope, a take-up shaft, a rotating seat, and a rotational power source; one end of the connecting rope is connected to the first base, and the other end of the connecting rope is wound onto the take-up shaft; the rotating seat is rotatably mounted on the second base, and the rotational power source is used to drive the rotating seat to rotate; the take-up shaft is mounted on the rotating seat.

10. A construction device according to claim 9, characterized in that: The rotating base is detachably connected to the winding shaft.

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