Construction method of concrete structure playground overcrossing existing historical building

Abstract

The invention relates to the technical field of playground construction, in particular to a construction method of a concrete structure playground overcrossing an existing historical building, comprising the following steps: S1, digging a vibration isolation groove around a building to be protected, and forming a vibration isolation belt; s2, a support and a bailey truss are installed around the building needing to be protected, and a formwork is installed; s3, constructing a concrete beam; s4, a scaffold and a formwork are installed; s5, a concrete playground is poured; s6, after the concrete playground is solidified, the formwork is removed; and S7, dismantling the bailey truss. According to the construction method of the concrete structure playground overcrossing the existing historical building, vibration is relieved through the vibration isolation belt, the possibility that a soil layer below the building needing to be protected is collapsed due to vibration is reduced, and the supporting reliability of the playground is improved through joint supporting of the scaffolds and the concrete beams.

Description

Technical Field

[0001] The invention relates to the technical field of sports field construction, and in particular to a construction method of a concrete structure sports field that spans over an existing historical building. Background Art

[0002] When constructing a building on the roof, such as constructing a sports field on the top of a teaching building, if there is a building that needs to be protected below the sports field, such as a historical building, certain protective measures need to be taken around the building that needs to be protected before construction can be carried out. Therefore, a method for constructing a concrete structure sports field that spans over an existing historical building is urgently needed. Summary of the invention

[0003] The technical problem to be solved by the present invention is: in order to solve the technical problems in the prior art, the present invention provides a construction method for a concrete structure sports field that spans over an existing historical building.

[0004] The technical solution adopted by the present invention to solve its technical problems is: a method for constructing a concrete structure sports field that spans over an existing historical building, comprising the following steps: S1, digging a vibration isolation groove around the building to be protected, and forming a vibration isolation belt; S2, installing a bracket and a Bailey frame around the building to be protected, and installing a formwork; S3, constructing a concrete beam; S4, installing a scaffolding and a formwork; S5, pouring a concrete sports field; S6, removing the formwork after the concrete sports field is solidified; S7, removing the Bailey frame.

[0005] The invention discloses a method for constructing a concrete structure sports field that spans over an existing historical building, which reduces vibrations by using vibration isolation belts, thereby reducing the possibility of soil collapse under the building to be protected due to vibrations, and improves the reliability of the support for the sports field by using scaffolding and concrete beams for joint support.

[0006] Furthermore, the vibration isolation belt includes a vibration isolation groove, which is arranged along the circumference of the building and surrounds the building, and the inside of the vibration isolation groove is defined as the first ground, and the outside of the vibration isolation groove is defined as the second ground; cement mixing piles, which are arranged in the first ground, and multiple cement mixing piles are arranged at intervals along the circumference of the inner circle of the vibration isolation groove to reinforce the first ground.

[0007] Furthermore, in step S1, the vibration isolation groove excavation includes the following steps: S11, reinforcing the wall of the building to be protected; S12, drawing lines around the building on the ground, marking the positions where cement mixing piles need to be driven, and marking the range of the vibration isolation groove; S13, constructing the cement mixing piles; S14, after the cement mixing piles are solidified, digging the vibration isolation groove along the marked range of the vibration isolation groove; S15, laying a hanging net on the side wall of the vibration isolation groove, and drilling holes on the side wall of the vibration isolation groove to drive in fixing nails, and then fixing the hanging net with the fixing nails; S16, spraying concrete on the side wall of the vibration isolation groove to form a concrete slope protection layer.

[0008] Further, in step S15, the side wall of the vibration isolation groove is punched by a punching device, and the punching device includes a movable frame, a punching adjustment assembly and a drilling machine. Moving wheels are provided at the four corner points of the bottom of the movable frame. The fixed end of the punching adjustment assembly is fixedly connected to the movable frame, and the movable end of the punching adjustment assembly is connected to the drilling machine to adjust the position of the drilling machine and drive the drilling machine to drill.

[0009] Furthermore, in step S3, the pouring of the concrete beam includes the following steps: S31, constructing a support box on the top of the teaching building, digging a vibration isolation groove around the building to be protected, and constructing a steel tube concrete foundation in the vibration isolation groove; S32, installing a movable device in the support box, installing a steel tube on the steel tube concrete foundation, and pouring concrete into the steel tube to form a steel tube concrete column; S33, pouring a second connecting column on the steel tube concrete column; S34, pouring a first connecting column on the movable end of the movable device; S35, pouring a concrete beam, connecting the concrete beam to the first connecting column and the second connecting column, and backfilling the vibration isolation groove.

[0010] Furthermore, the movable device includes a first buffer plate, a second buffer plate, a limit plate and a movable plate arranged in sequence from bottom to top, and the first buffer plate, the second buffer plate, the limit plate and the movable plate are all located in a support box, and a buffer component is provided in the support box, and the buffer component is arranged around the first buffer plate, the second buffer plate and the limit plate.

[0011] Further, in step S7, dismantling the Bailey frame includes the following steps: S71, installing a slide rail device on the bottom surface of the sports field, and extending the output end of the slide rail device to the outside of the sports field; S72, connecting the hook of the slide rail device to the Bailey frame; S73, lifting the Bailey frame so that the Bailey frame is in a disassembled state, so that the length of the Bailey frame is reduced to be able to pass between two load-bearing columns; S74, moving the Bailey frame outside the sports field through the slide rail device; S75, placing the Bailey frame on the ground through the slide rail device.

[0012] Furthermore, the slide rail device includes a guide rail installed at the bottom of the sports field and connected to the embedded parts reserved at the bottom of the sports field, and one end of the guide rail extends out of the sports field; a sliding plate is arranged under the guide rail and can slide relative to the guide rail; a sliding assembly is arranged on the top surface of the sliding plate to drive the sliding plate to slide relative to the guide rail; and a lifting assembly is arranged on the top surface of the sliding plate and is suitable for lifting objects.

[0013] Furthermore, the sliding assembly includes a mounting plate, a rotating member and a driving wheel, the mounting plate is fixedly connected to the sliding plate, the rotating member is fixedly connected to the mounting plate, the driving wheel is rotatably connected to the mounting plate, a sliding groove is provided on the guide rail, the driving wheel is suitable for rolling in the sliding groove, and the output end of the rotating member is connected to the driving wheel to drive the driving wheel to rotate.

[0014] Furthermore, the Bailey frame includes a long Bailey frame; two short Bailey frames are provided and located at both ends of the long Bailey frame, the bottom of the side wall of the short Bailey frame is hinged to the long Bailey frame, and a connecting component is provided between the top of the short Bailey frame and the top of the long Bailey frame, and the connecting component is used to switch the top of the short Bailey frame and the top of the long Bailey frame between a connected state and a disassembled state; when the top of the short Bailey frame and the top of the long Bailey frame are in the disassembled state, when the long Bailey frame is lifted, the two short Bailey frames rotate downward to reduce the maximum distance between the two short Bailey frames.

[0015] The beneficial effects of the present invention are:

[0016] 1. Use vibration isolation belts to reduce vibrations and reduce the possibility of soil collapse under the buildings that need to be protected due to vibrations. Use scaffolding and concrete beams to support the stadium and improve its reliability.

[0017] 2. By installing a slide rail device under the sports field, it is convenient to move the Bailey frame outside the sports field. At the same time, the Bailey frame is switched to the disassembly state to reduce the length of the Bailey frame so that it can pass between two load-bearing columns, thereby realizing the removal of the Bailey frame at a lower cost and improving the construction efficiency of the Bailey frame removal. By reserving embedded parts at the bottom of the sports field, it is convenient to install the guide rail, and then the sliding assembly drives the sliding plate to move relative to the guide rail to drive the lifting assembly to move, thereby facilitating the movement of the Bailey frame outside the bottom of the sports field, thereby facilitating the transfer of the Bailey frame and improving the construction efficiency;

[0018] 3. By setting the lifting assembly on the top surface of the sliding plate and the highest point of the lifting assembly being lower than the highest surface of the guide rail, the various components are integrated as much as possible in a lower height range, thereby adapting to the narrow space between the objects and the bottom of the playground;

[0019] 4. The sliding plate is guided and limited by the support wheel and the limit wheel to improve the stability and accuracy of the sliding plate's movement;

[0020] 5. The top of the short Bailey frame and the top of the long Bailey frame are switched between a connected state and a disassembled state through the connecting assembly. In the connected state, the top of the long Bailey frame is connected to the top of the short Bailey frame to serve as a support for the template. In the disassembled state, the top of the long Bailey frame is separated from the top of the short Bailey frame, and the short Bailey frame rotates downward to reduce the maximum distance between the two short Bailey frames, thereby facilitating the Bailey frame as a whole to pass between the two load-bearing columns, thereby solving the problem of Bailey frame disassembly and removal at a lower cost, and the construction efficiency is high;

[0021] 6. By setting the first inclined surface and the second inclined surface, it is convenient to realize automatic connection between the top of the short Bailey frame and the top of the long Bailey frame when the short Bailey frame moves toward the long Bailey frame;

[0022] 7. By setting the disassembly rod, the disassembly block and the arc surface, the disassembly rod is moved so that the arc surface contacts the connecting block, and then the connecting block is pressed back into the slide slot, so as to realize the automatic separation of the top of the short Bailey frame and the top of the long Bailey frame;

[0023] 8. By setting the pull hook in the second lifting ring, when lifting through the second lifting ring, the upper hook is also pulled to move, so as to realize the automatic separation of the top of the short Bailey frame and the top of the long Bailey frame;

[0024] 9. The first ground is separated from the second ground by the vibration isolation groove, thereby blocking the vibration transmitted from the second ground and reducing the impact of vibration on the building. The cement mixing pile can increase the stability of the first ground and improve its earthquake resistance. At the same time, it can tighten the soil of the first ground and reduce the possibility of collapse of the first ground during the construction of the vibration isolation groove.

[0025] 10. Strengthen the walls of buildings through reinforcement components to reduce the possibility of damage to buildings caused by vibration;

[0026] 11. The concrete slope protection layer is formed by hanging mesh and spraying concrete to further strengthen the first ground, reduce the loosening of the soil layer, and thus protect the building;

[0027] 12. Concrete is poured into the steel tube to form a steel tube concrete column, and the concrete beam is supported by the steel tube concrete column. On the one hand, the steel tube concrete column has high strength and strong bearing capacity, and on the other hand, the construction efficiency of the steel tube concrete column is also high. At the same time, the steel tube concrete foundation is set in the vibration isolation groove, so that the bottom of the steel tube concrete column can be buried in the soil layer when the vibration isolation groove is buried later, thereby improving the reliability of the steel tube concrete column foundation. In addition, since the span of the concrete beam is large, thermal expansion and contraction will cause a large offset at both ends of the concrete beam, so the movable end of the movable device is connected to the concrete beam to compensate for the offset at both ends of the concrete beam. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0029] Figure 1 The present invention is a schematic flow chart of a construction method of a concrete structure sports field that spans over an existing historical building.

[0030] Figure 2 It is a schematic diagram of the structure of the vibration isolation belt in the present invention.

[0031] Figure 3 It is a schematic diagram of the structure of the reinforcement component in the present invention.

[0032] Figure 4 It is a schematic diagram of a punching device in the present invention.

[0033] Figure 5 Schematic diagram of the injection device in the present invention.

[0034] Figure 6 yes Figure 5 A partial enlarged view of part B in the middle.

[0035] Figure 7 It is a schematic diagram of the clamping rod in the present invention.

[0036] Figure 8 It is a structural schematic diagram of the entire concrete beam in the present invention.

[0037] Fig. 9 It is a schematic diagram of the support box and the movable device in the present invention.

[0038] Fig.10 It is a schematic diagram of the structure of the slide rail device in the present invention.

[0039] Fig.11 It is a schematic diagram of the connection structure of the guide rail and the sliding plate in the present invention.

[0040] Fig.12 It is a schematic diagram of a sliding assembly in the present invention.

[0041] Fig.13 It is a schematic diagram of the guide rail, the limit plate and the baffle in the present invention.

[0042] Fig.14 It is a schematic diagram of the structure of the Bailey frame as a whole in the present invention.

[0043] Fig.15 It is a schematic diagram showing the top of the short Bailey frame and the top of the long Bailey frame in a connected state in the present invention.

[0044] Fig.16 It is a schematic diagram showing the top of the short Bailey frame and the top of the long Bailey frame in a disassembled state in the present invention.

[0045] Fig.17 It is a cross-sectional schematic diagram embodying the connecting block and the compression spring in the present invention.

[0046] Fig.18 It is a partial schematic diagram of the disassembly block and the arc surface in the present invention.

[0047] Fig.19 yes Fig.14 A partial enlarged view of part A in the middle.

[0048] In the figure: 1, long Bailey frame; 11, connecting part; 111, second inclined surface; 12, slot; 13, disassembly rod; 14, disassembly block; 141, arc surface; 15, hook; 16, first lifting ring; 17, second lifting ring; 2, short Bailey frame; 21, connecting groove; 22, Bailey slide groove; 31, guide rail; 311, slide rail slide groove; 312, baffle; 313, limit plate; 32, sliding plate; 33, sliding assembly; 331, mounting plate; 332, rotating member; 333, driving wheel; 33 4. Power wheel; 335. Flexible transmission member; 336. Support wheel; 337. Limiting wheel; 338. Transmission wheel; 34. Lifting assembly; 4. Connecting assembly; 41. Connecting block; 411. First inclined plane; 42. Compression spring; 5. Support box; 51. First buffer plate; 52. Second buffer plate; 53. Support limiting plate; 531. Sliding block; 54. Movable plate; 541. First steel cage; 55. Buffer; 56. Steel tube concrete column; 561. Second steel cage; 57. Teaching building; 5 8. Concrete beam; 6. Vibration isolation groove; 61. First ground; 62. Second ground; 63. Keel; 631. Diagonal brace; 632. Support concrete foundation; 64. Hanging net; 65. Cement mixing pile; 7. Punching device; 71. Moving frame; 72. Punching adjustment assembly; 721. First linear module; 722. Vertical moving plate; 723. First motor; 724. Screw rod; 725. Guide rod; 726. Support spring; 727. Working plate; 73. Drilling machine; 8. Spraying device; 81. Frame; 811. Mobile crawler; 82. Mixing tank; 83. Solid delivery pump; 831. Nozzle; 84. Second linear module; 85. Support rail; 87. Bracket; 871. Fixing ring; 872. Fixing bolt; 873. Rotating shaft; 874. Sleeve; 875. Locking bolt; 88. Angle adjustment assembly; 881. Third linear module; 882. Adjusting rod; 883. Rack; 884. Gear; 8851. Clamping rod; 8852. Stopper; 8853. Tension spring. DETAILED DESCRIPTION

[0049] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0050] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be a connection between the two elements. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0051] The invention discloses a construction method for a concrete structure sports field which spans over an existing historical building.

[0052] Reference Figure 1 A method for constructing a concrete structure sports field that spans over an existing historical building comprises the following steps:

[0053] S1. Dig a vibration isolation groove 6 around the building to be protected and form a vibration isolation belt. The digging of the vibration isolation groove 6 includes the following steps:

[0054] S11. Reinforce the walls of buildings that need protection;

[0055] S12, draw a line around the building on the ground, mark the position where the cement mixing pile 65 needs to be driven, and mark the range of the vibration isolation groove 6;

[0056] S13, carrying out the construction of cement mixing pile 65;

[0057] S14, after the cement mixing pile 65 solidifies, dig out the vibration isolation groove 6 along the marking range of the vibration isolation groove 6;

[0058] S15, laying a hanging net 64 on the side wall of the vibration isolation groove 6, and punching holes on the side wall of the vibration isolation groove 6 to drive fixing nails, and then fixing the hanging net 64 by the fixing nails;

[0059] S16. Spray concrete on the side wall of the vibration isolation groove 6 to form a concrete slope protection layer.

[0060] Specifically, refer to Figure 2 and Figure 3 The vibration isolation belt includes a vibration isolation groove 6, which is arranged along the circumference of the building to be protected and surrounds the building. The inside of the vibration isolation groove 6 is defined as the first ground 61, and the outside of the vibration isolation groove 6 is defined as the second ground 62. The vibration is generally generated from the second ground 62. Cement mixing piles 65 are arranged in the first ground 61, and multiple cement mixing piles 65 are arranged at intervals along the circumference of the inner circle of the vibration isolation groove 6 to reinforce the first ground 61. The first ground 61 is separated from the second ground 62 by the vibration isolation groove 6, thereby blocking the vibration transmitted from the second ground 62 and reducing the impact of the vibration on the building. The cement mixing piles 65 can increase the stability of the first ground 61 and improve the earthquake resistance. At the same time, the soil of the first ground 61 is tightened to reduce the possibility of collapse of the first ground 61 during the construction of the vibration isolation groove 6.

[0061] The depth of the vibration isolation groove 6 is 2.5 to 4 meters, preferably 3 meters, which can cut off most of the vibration transmission and improve the stability of the first ground 61; the width of the vibration isolation groove 6 is 1-3 meters, preferably 2.5 meters.

[0062] A reinforcement component is provided on the first ground 61 and is connected to the wall of the building. There are two groups of reinforcement components to reinforce the inner side and the outer side of the wall respectively.

[0063] Specifically, the reinforcement assembly includes a keel 63, a diagonal brace 631 and a supporting concrete foundation 632. The supporting concrete foundation 632 is cast on the ground. The keel 63 is vertically arranged and fits the wall to support the wall. One end of the diagonal brace 631 is hinged to the keel 63, and the other end is hinged to the supporting concrete foundation 632. At least two diagonal braces 631 are arranged on each group of keels 63 in the vertical direction to provide stable support for the keel 63. The diagonal brace 631 can use a damping rod to absorb vibration and improve shock absorption performance.

[0064] In addition, a hanging net 64 is provided on the side wall of the vibration isolation groove 6 close to the building, and fixing nails are provided inside the side wall of the vibration isolation groove 6 close to the building, and the fixing nails are used to fix the hanging net 64. After the hanging net 64 is fixed, concrete is sprayed on the side wall of the vibration isolation groove 6 close to the building to form a concrete slope protection layer, thereby further strengthening the side of the first ground 61 and reducing the possibility of landslide.

[0065] In order to further improve the strength of the concrete slope protection layer, screws are connected inside the cement mixing pile 65 , and the screws are connected to the hanging net 64 .

[0066] In step S15, the side wall of the vibration isolation groove 6 is punched by the punching device 7. In step S16, the spraying device 8 sprays concrete.

[0067] Specifically, refer to Figure 4 The punching device 7 includes a moving frame 71, a punching adjustment component 72 and a drilling machine 73. The four corners of the bottom of the moving frame 71 are provided with moving wheels so that the moving frame 71 can move. The four moving wheels can also be replaced by two tracks so as to move on muddy ground. The fixed end of the punching adjustment component 72 is fixedly connected to the moving frame 71, and the moving end of the adjustment component is connected to the drilling machine 73 to adjust the position of the drilling machine 73 and drive the drilling machine 73 to drill holes.

[0068] More specifically, the drilling adjustment assembly 72 includes a first linear module 721, a vertical moving plate 722, a first motor 723, a screw 724 and a guide rod 725. The first linear module 721 is fixedly connected to the moving frame 71, the movable end of the first linear module 721 is fixedly connected to the vertical moving plate 722, the first motor 723 is fixedly connected to the vertical moving plate 722, the screw 724 is rotatably connected to the vertical moving plate 722, and the output end of the first motor 723 is connected to the screw 724 through a gear 884 to drive the screw 724 to rotate. A working plate 727 is fixedly connected to the drilling hole, the working plate 727 is threadedly connected to the screw 724, one end of the guide rod 725 is fixedly connected to the vertical moving plate 722, and the other end passes through the working plate 727 to provide guidance for the working plate 727. A support spring 726 is sleeved on the guide rod 725, one end of the support spring 726 abuts against the working plate 727, and the other end abuts against the vertical moving plate 722, so as to increase the supporting force on the working plate 727. The support spring 726 can be a compression spring.

[0069] During operation, the moving wheels facilitate the movement of the moving frame 71. When it moves to the corresponding position, the first linear module 721 drives the vertical moving plate 722 to move to the corresponding height. Then the drilling machine 73 is started, and the first motor 723 is also started, driving the drilling machine 73 to move toward the side wall of the vibration isolation groove 6 to drill holes.

[0070] Specifically, refer to Figures 5 to 7The spraying device 8 includes a frame 81, and two moving tracks 811 are installed under the frame 81 so that the frame 81 can move on the dirt road. The frame 81 is also fixedly connected with a mixing tank 82, a solid delivery pump 83, a second linear module 84 and a support rail 85. There are two mixing tanks 82, and the output ends of the two mixing tanks 82 are connected to the same three-way valve, and the other interface of the three-way valve is connected to the input end of the solid delivery pump 83. The use of two mixing tanks 82 can make it possible for the fixed delivery pump to always have mixed concrete to be extracted. The output end of the solid delivery pump 83 is connected to a nozzle, and a nozzle 831 is connected to the nozzle. The nozzle 831 is arranged toward the side wall of the vibration isolation tank 6 so as to spray concrete toward the side wall of the vibration isolation tank 6. A bracket 87 is slidably connected to the support rail 85, and a fixing ring 871 for fixing the nozzle 831 is provided on the bracket 87. The movable end of the second linear module 84 is connected to the bracket 87 to drive the bracket 87 to move along the length direction of the moving track 811. The bracket 87 is also provided with an angle adjustment component 88, and the movable end of the angle adjustment component 88 is connected to the fixing ring 871, so that the fixing ring 871 swings, and then the spray head 831 swings up and down, so as to spray concrete in sequence along the vertical direction.

[0071] More specifically, the spray head 831 is inserted into the fixing ring 871, and the fixing ring 871 is threadedly connected with a fixing bolt 872, and the fixing bolt 872 is suitable for locking the spray head 831. A rotating shaft 873 is fixedly connected to the side wall of the fixing ring 871, and the rotating shaft 873 is rotatably connected to the bracket 87. A sleeve 874 is sleeved on the rotating shaft 873, and the sleeve 874 can rotate relative to the rotating shaft 873. The sleeve 874 is also rotatably connected to the bracket 87. A locking bolt 875 is threadedly connected to the sleeve 874, and the locking bolt 875 is used to lock the sleeve 874 with the rotating shaft 873.

[0072] The angle adjustment assembly 88 includes a third linear module 881, an adjustment rod 882, a rack 883 and a gear 884. The third linear module 881 is fixedly connected to the bracket 87. The movable end of the third linear module 881 is fixedly connected to the adjustment rod 882. The gear 884 is coaxially fixed to the sleeve 874. The rack 883 slides on the bracket 87, and the gear 884 is meshed with the rack 883. A clamping rod 8851 slides in the vertical direction on the adjustment rod 882. A positioning groove for inserting the clamping rod 8851 is provided at the bottom of the adjustment rod 882. A plurality of positioning grooves are provided along the length direction of the rack 883. A stopper 8852 is threadedly connected to the bottom of the clamping rod 8851. A tension spring 8853 is connected between the stopper 8852 and the bottom of the adjustment rod 882 so that the clamping rod 8851 is located in the positioning groove under normal conditions. The clamping rod 8851 is inserted into different positioning slots to adjust the moving distance of the rack 883, thereby adjusting the swing angle of the nozzle 831. The sleeve 874 and the rotating shaft 873 can rotate relative to each other, thereby adjusting the initial spraying angle of the nozzle 831.

[0073] During operation, the moving crawler 811 drives the frame 81 to move, and the solid delivery pump 83 extracts the mixed concrete from the mixing tank 82 and sprays it from the nozzle 831. At this time, the movable end of the third linear module 881 drives the adjustment rod 882 to move, the adjustment rod 882 drives the rack 883 to rotate, the rack 883 drives the gear 884 to rotate, and the gear 884 drives the sleeve 874 to rotate, and then drives the fixed ring 871 and the nozzle 831 to swing, so that the nozzle 831 sprays a straight line in the vertical direction. At the same time, the movable end of the second linear module 84 drives the bracket 87 to move in the opposite direction of the movement of the frame 81, and the moving speed is the same as the moving speed of the frame 81, so that the concrete sprayed by the nozzle 831 is a straight line. When the movable end of the third linear module 881 moves to the head in one direction, the movable end of the second linear module 84 is quickly reset. At this time, the movable end of the third linear module 881 moves in the opposite direction, and the second linear module 84 continues to move in the opposite direction of the frame 81, so that the nozzle 831 sprays along an S-shaped curve, thereby making the sprayed concrete evenly form a surface.

[0074] S2. Install brackets 87 and Bailey frames around the building to be protected, and install formwork;

[0075] S3, constructing concrete beam 58. In step S3, pouring of concrete beam 58 includes the following steps:

[0076] S31, construct a support box 5 on the top of the teaching building 57, dig a vibration isolation groove 6 around the building to be protected, and construct a steel tube concrete foundation in the vibration isolation groove 6;

[0077] S32, installing a movable device in the support box 5, installing a steel tube on the steel tube concrete foundation, and pouring concrete into the steel tube to form a steel tube concrete column 56;

[0078] S33, pouring a second connecting column on the steel tube concrete column 56;

[0079] S34, casting a first connecting column on the movable end of the movable device;

[0080] S35 , pouring the concrete beam 58 , connecting the concrete beam 58 to the first connecting column and the second connecting column, and backfilling the vibration isolation groove 6 .

[0081] Specifically, refer to Figure 8 and Fig. 9 A steel tube concrete column 56 and a support box 5 are provided below the concrete beam 58. The support box 5 is installed on the top of the teaching building 57. The top of the steel tube concrete column 56 is connected to the concrete beam 58. A movable device is provided in the support box 5, and the movable end of the movable device is connected to the concrete beam 58.

[0082] Specifically, the movable device includes a first buffer plate 51, a second buffer plate 52, a support and limit plate 53, and a movable plate 54, which are arranged in sequence from bottom to top. The first buffer plate 51, the second buffer plate 52, the support and limit plate 53, and the movable plate 54 are all located in the support box 5. A buffer 55 is provided in the support box 5. The buffer 55 is arranged around the first buffer plate 51, the second buffer plate 52, and the support and limit plate 53. The buffer 55 adopts a compression spring. The buffer 55 can buffer the first buffer plate 51, the second buffer plate 52, and the support and limit plate 53, so as to reduce the vibration of the teaching building 57 from being transmitted to the concrete beam 58, and also reduce the vibration of the concrete beam 58 from being transmitted to the teaching building 57.

[0083] In another embodiment, the buffer member 55 may also be a rubber pad.

[0084] More specifically, a movable slider 531 is fixedly connected to the bottom of the movable plate 54 , and a displacement groove cooperating with the movable slider 531 is provided on the top of the support and limiting plate 53 , and the displacement groove is arranged along the length direction of the concrete beam 58 .

[0085] In addition, a first steel cage 541 is connected to the support limit plate 53, and the first steel cage 541 is poured with concrete to form a first connection column, and the top of the first connection column is connected to the concrete beam 58. A second steel cage 561 is connected to the top of the steel pipe, and the second steel cage 561 is poured with concrete to form a second connection column, and the top of the second connection column is connected to the concrete beam 58.

[0086] By pouring concrete in the steel tube, a steel tube concrete column 56 is formed, and the concrete beam 58 is supported by the steel tube concrete column 56. On the one hand, the steel tube concrete column 56 has high strength and strong bearing capacity, and on the other hand, the construction efficiency of the steel tube concrete column 56 is also high; at the same time, the steel tube concrete foundation is arranged in the vibration isolation groove 6, so that the bottom of the steel tube concrete column 56 can be buried in the soil layer when the vibration isolation groove 6 is buried later, thereby improving the reliability of the foundation of the steel tube concrete column 56; in addition, since the concrete beam 58 has a large span, thermal expansion and contraction will cause a large offset at both ends of the concrete beam 58, so the movable end of the movable device is connected to the concrete beam 58 to compensate for the offset at both ends of the concrete beam 58.

[0087] The buffering member 55 is used to buffer the first buffer plate 51, the second buffer plate 52, and the support limit plate 53, which can reduce the vibration of the teaching building 57 from being transmitted to the concrete beam 58, and can also reduce the vibration of the concrete beam 58 from being transmitted to the teaching building 57. The vibration isolation groove 6 isolates the building to be protected, thereby blocking the vibration transmitted from other positions, reducing the impact of the vibration on the building to be protected. At the same time, the cement mixing pile 65 can increase the stability of the coating, improve the seismic resistance, and reduce the possibility of collapse of the soil layer under the building to be protected when the vibration isolation groove 6 is constructed.

[0088] S4. Install scaffolding and formwork;

[0089] S5, pouring concrete sports field;

[0090] S6. After the concrete sports field solidifies, remove the formwork;

[0091] S7, dismantling the Bailey frame. In step S7, dismantling the Bailey frame includes the following steps:

[0092] S71, installing a slide rail device on the bottom surface of the sports field, and extending the output end of the slide rail device outside the sports field;

[0093] S72, connecting the hook of the slide rail device to the Bailey frame;

[0094] S73, hoisting the Bailey frame to put it in a disassembled state, so that the length of the Bailey frame is reduced to a length that can pass between two load-bearing columns;

[0095] S74, moving the Bailey frame outside the sports field by means of a slide rail device;

[0096] S75. Place the Bailey rack on the ground using the slide rail device.

[0097] Reference Figures 10 to 13 The slide rail device 3 includes a guide rail 31 installed at the bottom of the sports field. The guide rail 31 is fixedly connected to the embedded parts reserved at the bottom of the sports field by bolts, and one end of the guide rail 31 extends out of the sports field. A sliding plate 32 is provided below the guide rail 31. The sliding plate 32 can slide relative to the guide rail 31 through a sliding assembly 33. A lifting assembly 34 is installed on the sliding plate 32. The lifting assembly 34 is suitable for lifting objects. By reserving embedded parts at the bottom of the sports field, it is convenient to install the guide rail 31. Then, the sliding plate 32 is driven to move relative to the guide rail 31 by the sliding assembly 33 to drive the lifting assembly 34 to move, thereby facilitating the movement of the objects to be lifted outside the bottom of the sports field, thereby facilitating the transfer of the objects and improving the construction efficiency.

[0098] In order to improve the stability of the movement of the sliding plate 32 , two sets of sliding components 33 are provided opposite to each other along the width direction of the slide rail.

[0099] Specifically, the sliding assembly 33 includes a mounting plate 331, a rotating member 332 and a driving wheel 333. The mounting plate 331 is fixedly connected to the sliding plate 32, the rotating member 332 is fixedly connected to the mounting plate 331, the driving wheel 333 is rotatably connected to the mounting plate 331, and the guide rail 31 is provided with a slide rail groove 311, and the driving wheel 333 is suitable for rolling in the slide rail groove 311. The output end of the rotating member 332 is coaxially fixedly connected with a power wheel 334, and the driving wheel 333 is coaxially fixedly connected with a transmission wheel 338. The power wheel 334 and the transmission wheel 338 are transmitted through a flexible transmission member 335, so that the rotating member 332 can drive the driving wheel 333 to rotate. The flexible transmission member 335 can be a chain or a synchronous belt. The load on the driving wheel 333 can be buffered by the flexible transmission member 335, thereby reducing the load transmitted to the output end of the rotating member 332.

[0100] More specifically, the mounting plate 331 is rotatably connected with a support wheel 336, which rolls in the slide rail groove 311. Two support wheels 336 are provided on each mounting plate 331, and the two support wheels 336 are oppositely arranged on both sides of the driving wheel 333 to reduce the load borne by the driving wheel 333. The surface of the driving wheel 333 is provided with an elastic material, which can be a rubber ring, so that when the driving wheel 333 is working, the support wheel 336 bears most of the load, while the driving wheel 333 bears a small part of the load and is kept in a compressed state to ensure the friction between the driving wheel 333 and the bottom of the slide rail groove 311, so as to drive the sliding plate 32 to slide relative to the guide rail 31.

[0101] Furthermore, the mounting plate 331 is rotatably connected with a limiting wheel 337, the axis of which is arranged in the vertical direction, and the side wall of which is in contact with the slide rail. Each mounting plate 331 is provided with a set of limiting wheels 337, and the two sets of limiting wheels 337 cooperate with each other to assist in positioning the sliding plate 32 relative to the guide rail 31 along the width direction of the guide rail 31, thereby further improving the stability of the sliding plate 32.

[0102] Furthermore, one end of the guide rail 31 is fixedly connected to a baffle 312 , and the other end is detachably connected to a limit plate 313 via bolts. The limit plate 313 is arranged at one end of the guide rail 31 extending out of the bottom of the playground.

[0103] It should be noted that two groups of lifting assemblies 34 are arranged opposite to each other along the width direction of the guide rail 31, and the lifting ropes of the two groups of lifting assemblies 34 are located on both sides of the sliding plate 32. The lifting assemblies 34 are installed on the top surface of the sliding plate 32, and the highest point of the lifting assemblies 34 is lower than the highest surface of the guide rail 31. The lifting assemblies 34 include a crane and a hook connected to the output end of the crane.

[0104] By reserving embedded parts at the bottom of the sports field, it is convenient to install the guide rail 31, and then the sliding plate 32 is driven by the sliding assembly 33 to move relative to the guide rail 31 to drive the lifting assembly 34 to move, thereby facilitating the movement of the items to be lifted outside the bottom of the sports field, thereby facilitating the transfer of the items and improving construction efficiency.

[0105] By setting the lifting assembly 34 on the top surface of the sliding plate 32, and the highest point of the lifting assembly 34 is lower than the highest surface of the guide rail 31, the various components are integrated in a lower height range as much as possible, thereby adapting to the narrow space between the objects and the bottom of the playground. The sliding plate 32 is guided and limited by the support wheel 336 and the limiting wheel 337, so as to improve the stability and accuracy of the movement of the sliding plate 32.

[0106] Specifically, refer to Figures 14 to 19 The Bailey frame includes a long Bailey frame 1 and two short Bailey frames 2. The two short Bailey frames 2 are located at both ends of the long Bailey frame 1. The bottom of the side wall of the short Bailey frame 2 is hinged to the long Bailey frame 1. A connecting component 4 is provided between the top of the short Bailey frame 2 and the top of the long Bailey frame 1. The connecting component 4 is used to switch the top of the short Bailey frame 2 and the top of the long Bailey frame 1 between a connected state and a disassembled state. When the top of the short Bailey frame 2 and the top of the long Bailey frame 1 are in a disassembled state, when the long Bailey frame 1 is hoisted, the two short Bailey frames 2 rotate downward to reduce the maximum distance between the two short Bailey frames 2.

[0107] Specifically, the long Bailey frame 1 is provided with a connecting portion 11 , the short Bailey frame 2 is provided with a connecting groove 21 for inserting the connecting portion 11 , and the connecting assembly 4 is arranged on the side wall of the connecting groove 21 and can be connected to the connecting portion 11 .

[0108] More specifically, the connection assembly 4 includes a connection block 41 and a compression spring 42. A Bailey slot 22 is provided on the side wall of the connection slot 21. The connection block 41 slides in the Bailey slot 22. A slot 12 for inserting the connection block 41 is provided on the connection portion 11. The compression spring 42 is located between the connection block 41 and one end of the Bailey slot 22 away from the slot 12. One end of the compression spring 42 is fixedly connected to the connection block 41, and the other end is fixedly connected to one end of the Bailey slot 22 away from the slot 12.

[0109] In order to realize the automatic connection between the top of the short Bailey frame 2 and the top of the long Bailey frame 1, a first inclined surface 411 is provided at one end of the connection block 41 facing the long Bailey frame 1, and a second inclined surface 111 is provided at one end of the connection portion 11 facing the short Bailey frame 2. When the short Bailey frame 2 rotates toward the connection portion 11, the first inclined surface 411 contacts the second inclined surface 111 and presses the connection block 41 back into the Bailey slide groove 22. When the end of the connection portion 11 away from the long Bailey frame 1 abuts against the side wall of the connection groove 21, the connection block 41 is inserted into the connection groove 21 under the action of the compression spring 42, so as to realize the automatic connection between the top of the short Bailey frame 2 and the top of the long Bailey frame 1. The connection assembly 4 and the second inclined surface 111 are both provided with two groups along the width direction of the connection portion 11, so as to improve the reliability of the connection between the top of the short Bailey frame 2 and the top of the long Bailey frame 1.

[0110] Furthermore, a disassembly rod 13 is provided in the slot 12, and the disassembly rod 13 slides in the connecting portion 11 along the vertical direction. A disassembly block 14 is fixed on the disassembly rod 13, and a circular arc surface 141 is provided on the disassembly block 14. The circular arc surface 141 is used to contact with two connecting blocks 41 and press the connecting blocks 41 back into the Bailey slide groove 22. A pull hook 15 slides in the vertical direction on the long Bailey frame 1, and the bottom of the pull hook 15 is fixedly connected to the disassembly rod 13. Two disassembly rods 13 and two pull hooks 15 are provided, and are located at both ends of the long Bailey frame 1.

[0111] A first lifting ring 16 is fixedly connected to the long Bailey frame 1, and the first lifting ring 16 is arranged in the middle position of the long Bailey frame 1. Two second lifting rings 17 are fixedly connected to the long Bailey frame 1, and the two second lifting rings 17 are arranged at both ends of the long Bailey frame 1. Two hooks 15 are respectively located in the two second lifting rings 17. When using the Bailey frame, first connect it with the first lifting ring 16 through the hook to lift the Bailey frame to a preset position; when the Bailey frame needs to be disassembled, connect it with the second lifting ring 17 and the hook 15 through the hook, and when the Bailey frame is lifted, the upper hook is also pulled to move, so as to realize the automatic separation of the top of the short Bailey frame 2 and the top of the long Bailey frame 1, and in the process of lifting the long Bailey frame 1, the two short Bailey frames 2 rotate under the action of their own gravity, so that the maximum distance between the two short Bailey frames 2 is reduced.

[0112] The top of the short Bailey frame 2 and the top of the long Bailey frame 1 are switched between a connected state and a disassembled state through the connecting component 4. In the connected state, the top of the long Bailey frame 1 is connected to the top of the short Bailey frame 2 to serve as a support for the template. In the disassembled state, the top of the long Bailey frame 1 is separated from the top of the short Bailey frame 2, and the short Bailey frame 2 rotates downward to reduce the maximum distance between the two short Bailey frames 2, thereby facilitating the Bailey frame as a whole to pass between the two load-bearing columns, thereby solving the problem of disassembling and removing the Bailey frame at a lower cost, and the construction efficiency is high.

[0113] Based on the above ideal embodiments of the present invention, the relevant staff can make various changes and modifications without departing from the technical concept of the present invention through the above description. The technical scope of the present invention is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A method for constructing a concrete structure sports field that spans over an existing historical building, characterized in that: The steps include: S1. Dig out vibration isolation grooves around the buildings to be protected and form vibration isolation belts; S2. Install brackets and Bailey frames around the buildings to be protected and install formwork; S3, construction of concrete beams; S4. Install scaffolding and formwork; S5, pouring concrete sports field; S6. After the concrete sports field solidifies, remove the formwork; S7. Remove the Bailey rack.

2. The method for constructing a concrete structure sports field that spans over an existing historical building according to claim 1 is characterized in that: The vibration isolation belt comprises A vibration isolation groove (6), wherein the vibration isolation groove (6) is arranged along the circumference of the building and surrounds the building, the inside of the vibration isolation groove (6) is defined as a first ground surface (61), and the outside of the vibration isolation groove (6) is defined as a second ground surface (62); Cement mixing piles (65) are arranged in the first ground surface (61), and a plurality of cement mixing piles (65) are arranged at intervals along the circumference of the inner circle of the vibration isolation groove (6) to reinforce the first ground surface (61).

3. The method for constructing a concrete structure sports field that spans over an existing historical building according to claim 1, characterized in that: In step S1, the vibration isolation groove excavation includes the following steps: S11. Reinforce the walls of buildings that need protection; S12, marking the ground around the building, marking the position where the cement mixing pile (65) needs to be driven, and marking the range of the vibration isolation groove (6); S13, carrying out the construction of cement mixing pile (65); S14, after the cement mixing pile (65) solidifies, dig out the vibration isolation groove (6) along the marking range of the vibration isolation groove (6); S15, laying a hanging net (64) on the side wall of the vibration isolation groove (6), punching holes on the side wall of the vibration isolation groove (6) to drive fixing nails, and then fixing the hanging net (64) by the fixing nails; S16, spraying concrete on the side wall of the vibration isolation groove (6) to form a concrete slope protection layer.

4. The method for constructing a concrete structure sports field that spans over an existing historical building according to claim 3 is characterized in that: In step S15, the side wall of the vibration isolation groove (6) is punched by a punching device (7), the punching device (7) comprising a movable frame (71), a punching adjustment component (72) and a drilling machine (73), the movable frame (71) is provided with movable wheels at the four corner points of the bottom, the fixed end of the punching adjustment component (72) is fixedly connected to the movable frame (71), and the movable end of the punching adjustment component (72) is connected to the drilling machine (73) to adjust the position of the drilling machine (73) and drive the drilling machine (73) to drill holes.

5. The method for constructing a concrete structure sports field that spans over an existing historical building as claimed in claim 3, characterized in that: In step S3, the pouring of the concrete beam (58) includes the following steps: S31, constructing a support box (5) on the top of the teaching building (57), digging a vibration isolation groove (6) around the building to be protected, and constructing a steel tube concrete foundation in the vibration isolation groove (6); S32, installing a movable device in the support box (5), installing a steel tube on the steel tube concrete foundation, and pouring concrete into the steel tube to form a steel tube concrete column (56); S33, pouring a second connecting column on the steel tube concrete column (56); S34, casting a first connecting column on the movable end of the movable device; S35, pouring a concrete beam (58), connecting the concrete beam (58) to the first connecting column and the second connecting column, and backfilling the vibration isolation groove (6).

6. The method for constructing a concrete structure sports field that spans over an existing historical building as claimed in claim 5, characterized in that: The movable device comprises a first buffer plate (51), a second buffer plate (52), a support and limit plate (53) and a movable plate (54) which are arranged in sequence from bottom to top; the first buffer plate (51), the second buffer plate (52), the support and limit plate (53) and the movable plate (54) are all located in a support box (5); a buffer component (55) is provided in the support box (5); and the buffer component (55) is arranged around the first buffer plate (51), the second buffer plate (52) and the support and limit plate (53).

7. The method for constructing a concrete structure sports field that spans over an existing historical building as claimed in claim 1, characterized in that: In step S7, dismantling the Bailey frame includes the following steps: S71, installing a slide rail device (3) on the bottom surface of the sports field, and making the output end of the slide rail device (3) extend outside the sports field; S72, connecting the hook of the slide rail device (3) to the Bailey frame; S73, hoisting the Bailey frame to put it in a disassembled state, so that the length of the Bailey frame is reduced to a length that can pass between two load-bearing columns; S74, moving the Bailey frame outside the playground by means of the slide rail device (3); S75. Place the Bailey frame on the ground via the slide rail device (3).

8. The method for constructing a concrete structure sports field that spans over an existing historical building as claimed in claim 7, characterized in that: The slide rail device (3) comprises A guide rail (31) is installed at the bottom of the playground and connected to a pre-embedded part reserved at the bottom of the playground, and one end of the guide rail (31) extends outside the playground; A sliding plate (32) is disposed below the guide rail (31) and is capable of sliding relative to the guide rail (31); A sliding assembly (33) is disposed on the top surface of the sliding plate (32) to drive the sliding plate (32) to slide relative to the guide rail (31); The lifting assembly (34) is arranged on the top surface of the sliding plate (32) and is suitable for lifting objects.

9. The method for constructing a concrete structure sports field that spans over an existing historical building as claimed in claim 8, characterized in that: The sliding assembly (33) comprises a mounting plate (331), a rotating member (332) and a driving wheel (333); the mounting plate (331) is fixedly connected to the sliding plate (32); the rotating member (332) is fixedly connected to the mounting plate (331); the driving wheel (333) is rotatably connected to the mounting plate (331); a sliding rail groove (311) is provided on the guide rail (31); the driving wheel (333) is suitable for rolling in the sliding rail groove (311); and the output end of the rotating member (332) is connected to the driving wheel (333) to drive the driving wheel (333) to rotate.

10. The method for constructing a concrete structure sports field that spans over an existing historical building as claimed in claim 7, characterized in that: The Bailey frame includes Long Bailey Rack (1); Two short Bailey frames (2) are provided and are located at both ends of the long Bailey frame (1); the bottom of the side wall of the short Bailey frame (2) is hinged to the long Bailey frame (1); a connecting component (4) is provided between the top of the short Bailey frame (2) and the top of the long Bailey frame (1); the connecting component (4) is used to switch the top of the short Bailey frame (2) and the top of the long Bailey frame (1) between a connected state and a disassembled state; When the top of the short Bailey frame (2) and the top of the long Bailey frame (1) are in a disassembled state, when the long Bailey frame (1) is hoisted, the two short Bailey frames (2) rotate downwards to reduce the maximum distance between the two short Bailey frames (2).

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