Laminated hanging structure construction method

Abstract

The invention discloses a laminated hanging structure construction method which comprises the following steps that S1, hanging points of a machine room layer and a riding track are arranged on a roof beam, connecting joints of a long hanging rod and the machine room layer, the riding track and the roof beam are designed to be in pin shaft connection, and the design position of the long hanging rod and the roof beam are located in the same vertical plane; the long suspenders of the machine room layer and the riding track are connected with the roof beam through pin shafts; s2, the machine room layer and the grape trellis are assembled into a whole on the ground, the machine room layer and the grape trellis are integrally lifted in a hydraulic lifting mode, after the machine room layer and the grape trellis are in place, the lower ends of long hanging rods are connected with the machine room layer through pin shafts, the machine room layer is connected with the steel roof through horizontal beams in the circumferential direction of the machine room layer, and the horizontal hoop effect is formed; and S3, the riding track is spliced and lifted layer by layer from top to bottom, and the lower end of the long hanging rod is connected with the riding track through a pin shaft after the riding track is in place. The hanging structure is mounted by adopting a multi-method combination, so that the hanging structure is convenient to mount, and the stability of the steel roof can be ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of steel structure construction, in particular to a construction method of a laminated hanging structure. Background Art

[0002] With the continuous development of cultural and artistic performance architecture, large-scale performance buildings often adopt a steel roof structure combined with a suspended steel structure. The suspended steel structure houses platforms such as the machine room and bridleway. In a certain acrobatic arts center project, the main structure adopts a folded plate single-layer steel roof structure, which serves as the primary load-bearing and lateral resistance system. The roof structure is composed of 16 standard steel roof units. The bottom of the steel roof is supported by pre-assembled hinges and rests on the tops of the concrete columns in the basement. The machine room, grating, and bridleway platforms within the steel roof structure are suspended steel structures. The suspended structure, from top to bottom, consists of a 32.53m high machine room level, a grape trellis structure suspended below the machine room level, and suspended bridleways at 26.24m, 22.24m, and 18.98m, respectively. This multi-layered structure also features a deep foundation pit for the stage lift machinery located in the center of the main stage floor, severely impacting construction.

[0003] The existing construction of the under-roof hanging structure generally involves setting up a full-floor scaffolding under the roof, and constructing it layer by layer from top to bottom. The upper hanging structure is hung on the roof, and the lower hanging structure is hung on the upper hanging structure. This installation method concentrates the load acting on the roof structure from the lower hanging structure, which is not conducive to the stability of the single-layer steel roof structure system in this project; in addition, under the lower hanging structure is the auditorium surrounding the main stage area, and the auditorium is a stepped structure, which does not meet the requirements for setting up a full-floor scaffolding. To address the above problems, the present application provides a method for constructing a stacked hanging structure. Summary of the Invention

[0004] In view of the above problems, the present invention provides a construction method of a laminated hanging structure.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions: The present invention provides a method for constructing a laminated hanging structure, comprising the following steps: S1: The suspension points of the machine room and the horseway are set on the roof beams respectively. The connection nodes between the long hanger and the machine room, horseway and roof beams are designed to be pin-connected. The design position of the long hanger is located in the same vertical plane as the roof beam. The long hangers of the machine room and horseway are connected to the roof beams through pins. S2: The machine room layer and the grape trellis are assembled into a whole. The machine room layer and the grape trellis are lifted as a whole by hydraulic lifting. After they are in place, the lower end of the long suspension rod is connected to the machine room layer through a pin shaft. The machine room layer is then connected to the steel roof through horizontal beams along the circumference of the machine room layer to form a horizontal hoop effect. S3: Assemble and lift the bridleway layer by layer from top to bottom. After it is in place, connect the lower end of the long suspension rod to the bridleway through a pin.

[0006] The present invention provides a method for constructing a laminated hanging structure. Furthermore, the specific steps for lifting the machine room layer are: multiple groups of hydraulic lifting points are set on the roof beams, and supporting beams are set under the machine room layer. The multiple groups of hydraulic lifting points synchronously lift the machine room layer and the grape rack through the supporting beams.

[0007] The present invention provides a construction method for a laminated hanging structure. Further, a lifting frame is provided at each lifting point, two hydraulic cylinders are symmetrically provided on the lifting frame, and a support beam is provided below the radial main beam of the machine room layer.

[0008] The present invention provides a construction method for a laminated hanging structure. Further, the horseway is assembled in blocks on the ground, lifted in situ by a hand chain hoist, and then installed by patching rods.

[0009] The present invention provides a construction method for a laminated hanging structure. Further, when the ground below the horseway is flat, the ground assembles the horseway as a whole and uses a hand winch to lift the whole.

[0010] The invention provides a construction method for a laminated hanging structure. Further, when there are steps of a stand below the horseway, the stand area is partially leveled by using supporting columns and frame beams, and then the horseway is assembled and lifted in blocks.

[0011] The present invention provides a method for constructing a laminated hanging structure. Further, for the middle-layer horseway, it is divided into four layers of circular horseways from the center to the outside, and the circular horseways are connected by radial horseways. During construction, the central horseway is first lifted as a whole, and then the first section of the radial horseway is lifted and installed. Thereafter, the outer circular horseways are lifted and installed in blocks with the radial horseways as the boundary. According to the above-mentioned installation method, the installation of subsequent circular horseways and radial horseways is completed in sequence.

[0012] The present invention provides a construction method for a laminated hanging structure. Further, when the hand winch is lifted, fixed pulleys are arranged on the roof beam and the lifting horseway. After the rope is connected to the upper fixed pulley, it passes through the two fixed pulleys in sequence and is pulled to the side of the horseway to be lifted.

[0013] The invention provides a method for constructing a laminated hanging structure. Further, before the construction of the machine room layer, a blocking structure is provided at the stage opening.

[0014] The present invention provides a method for constructing a laminated hanging structure. Further, before the construction of the machine room layer, four groups of supporting structures are set at the bottom of the central ring beam of the steel roof. The supporting structures support the steel roof. When the machine room layer is lifted, gaps are reserved at the supporting structures for the supporting structures to pass through. After the machine room layer is lifted into place, rods are installed to fill in the gaps.

[0015] Compared with the prior art, the present application has the following beneficial effects: 1. The present application adopts long suspender to hang the horse path and machine room layer on the steel roof respectively, disperses the stress of the steel roof, avoids the problem of load concentration of the steel roof under the condition of hanging structure, and ensures the stability of the steel roof; 2. The horizontal diagonal brace between the machine room layer and the steel roof is arranged to form a cooperative stress effect with the roof, thereby improving the bearing capacity and stability of the single-layer steel roof, and the safety is higher; 3. The positioning angle of the long suspender is optimized, so that the long suspender and the roof beam are located in the same vertical plane, and the two ends of the long suspender are connected with the node through the pin shaft, so that the long suspender can be adjusted in only one direction, and the connection between the long suspender and the node is facilitated; 4. The long suspender is first connected with the roof beam, which solves the problem that the long suspender is installed later, and the lower multilayer hanging beam restricts the construction machinery and personnel from reaching the upper node for operation; 5. The machine room layer, grape trellis and horse path are installed by adopting the mode of hydraulic overall lifting, ground block assembly, hand-operated hoist lifting and high-altitude in-situ installation, thereby solving the problems of slow construction progress and high construction site requirement caused by erecting full-frame scaffolding; 6. Temporary tooling is arranged to locally level the staggered stand, and the ground hole is temporarily closed, thereby solving the site problem of cross construction with other specialties.

[0016] The present application will be further described below in combination with the drawings. DRAWINGS

[0017] Figure 1 is a structural schematic diagram of the present application; Figure 2 is a plugging structure schematic diagram of the present application; Figure 3 is a hanging structure schematic diagram of the present application; Figure 4 is a connection schematic diagram of the steel roof and the machine room layer of the present application; Figure 5 is a pin shaft connection schematic diagram of the long suspender of the present application; Figure 6 is a structure schematic diagram of the machine room layer of the present application; Figure 7 is a structure schematic diagram of the grape trellis of the present application; Figure 8 is a whole assembly schematic diagram of the machine room layer and the grape trellis of the present application; Figure 9 is a lifting point installation schematic diagram on the roof beam of the present application; Figure 10 is a beam installation schematic diagram of the present application; Figure 11This is a partial leveling diagram of the stand frame of the present invention; Figure 12 This is a schematic diagram of the step-by-step installation of the circular bridleway of the present invention; Figure 13 This is a schematic diagram of the connection between the fixed pulley and the roof beam of the present invention; Figure 14 This is a schematic diagram of the connection between the fixed pulley and the bridleway of the present invention.

[0018] Reference numerals: 1. Transition beam; 2. Support short column; 3. Temporary support; 4. Pillar beam; 5. Support steel beam; 6. Long hanger; 7. Machine room layer; 7.1. Radial main beam; 7.2. Circumferential steel beam; 8. Horseway; 9. Roof beam; 10. Pin shaft; 11. Steel roof; 12. Grape trellis; 12.1. Longitudinal main beam; 12.2. Horizontal beam; 13. Hydraulic cylinder; 14. Lifting frame; 15. Support beam; 16. Horizontal beam; 17. Fixed pulley; 18. Support structure; 19. Reserved gap; 20. Support column; 21. Frame beam. DETAILED DESCRIPTION

[0019] like Figures 1-14 As shown, the present invention discloses a method for constructing a laminated hanging structure, comprising the following steps: S1: Blocking of the main stage deep foundation pit opening: A transition beam 1 is arranged on the descending plate at the stage opening, and a supporting short column 2 is fixedly installed on the transition beam 1. A temporary support 3 is arranged below the stage opening. The temporary support 3 is a lattice support in the embodiment of the present application. The lower end of the temporary support 3 is fixedly connected to the bottom plate of the foundation pit, and a pillow beam 4 is provided one meter above it. Both ends of the pillow beam 4 are supported on the supporting short column 2, and the temporary support 3 is supported on the bottom of the pillow beam 4. Support steel beams 5 are distributed at intervals on the pillow beam 4, and the supporting steel beams 5 are covered with steel plates to form a hole blockage.

[0020] S2: Long boom design and installation: The hanging points of the machine room layer 7 and the horseway 8 are respectively set on the roof beam 9. The connection nodes between the long hanger 6 and the machine room layer 7, the horseway 8 and the roof beam 9 are designed to be connected by a pin 10. The design position of the long hanger 6 and the roof beam 9 are located in the same vertical plane, and the end of the long hanger 6 is connected to the roof beam 9 in advance through the pin 10.

[0021] S3: Machine room layer, grape rack installation: The machine room floor 7 is suspended below the steel roof 11 and is located at the top of the entire suspension structure. The machine room floor 7 is composed of multiple radial main beams 7.1 and multiple ring steel beams 7.2, and is connected to the steel roof 11 as a whole through long hangers 6; the grape trellis 12 is located below the machine room floor 7. The overall structure is approximately square and consists of eight longitudinal main beams 12.1 and transverse secondary beams 12.2. The longitudinal main beams 12.1 are connected to the lower flanges of the radial main beams 7.1 of the machine room floor 7 through multiple hanging columns.

[0022] Therefore, during construction, the machine room floor 7 and grape trellis 12 are assembled into a whole on the ground and lifted as a whole using hydraulic cylinders 13. The specific operation is as follows: the lifting points of the hanging structure are reasonably set through construction simulation calculations. In the embodiment of the present application, a total of six hydraulic lifting points are set for overall lifting. The upper lifting frame 14 is set on the roof beam 9 of the steel roof 11. Two hydraulic cylinders 13 are symmetrically set at each hydraulic lifting point. The lower lifting point is set on the support beam 15, which is set below the radial main beam 7.1 of the machine room floor 7. During lifting, multiple groups of hydraulic lifting points simultaneously lift the machine room floor 7 and grape trellis 12. After lifting to the designed position, the lower end of the long suspension rod 6 is connected to the radial main beam 7.1 of the machine room floor 7 via the pin 10. At the same time, the radial main beam 7.1 of the machine room floor 7 is connected and fixed to the main beam at the same level of the steel roof 11 along the circumference of the machine room floor 7 via the horizontal beam 16. After forming a horizontal hoop effect, the connection between the hydraulic lifting points and the machine room floor 7 is released.

[0023] S4: Multi-layer bridleway splicing and installation: The horseway 8 is arranged in multiple layers above and below, and the multiple layers of the horseway 8 are connected to the steel roof 11 through long hangers 6. The long hangers 6 are respectively connected to the horseway 8 and the steel roof 11 through pins 10. The horseway 8 is assembled in blocks on the ground, lifted in situ by a hand winch, and then installed by patching rods around it. Among them, when the ground below the horseway 8 is flat, the horseway 8 is assembled as a whole on the ground and lifted as a whole by a hand winch. When the ground below the horseway 8 is the steps of the stand, due to the height difference at the assembly position of the stand area, supporting columns and frame beams are used to locally level the stand area, and then the stand is assembled and lifted in blocks.

[0024] For the middle layer of the horse runway 8, it is divided into four layers of circular horse runs 8 from the center to the outside, and the circular horse runs 8 are connected by radial horse runs 8. During construction, the central horse run 8 is first lifted as a whole, and then the first section of the radial horse run 8 is lifted and installed. After that, the outer circular horse run 8 is lifted and installed in blocks with the radial horse run 8 as the boundary. The above process is repeated to complete the installation of the circular horse run 8 and the radial horse run 8 in sequence.

[0025] When the hand winch is lifting, fixed pulleys 17 are set on the roof beam 9 and the lifting way 8. After the rope is connected to the upper fixed pulley 17, it passes through two fixed pulleys 17 in sequence and is connected to the lower traction equipment. Through the setting of two sets of fixed pulleys 17, the traction area can be transferred from the bottom of the structure to be lifted to the side of the structure to be lifted, ensuring the safety of the construction workers.

[0026] Furthermore, in order to ensure the stability of the steel roof 11, before the construction of the machine room floor 7, four groups of supporting structures 18 are set at the bottom of the central ring beam of the steel roof 11. The supporting structure 18 supports the steel roof 11. When the machine room floor 7 is lifted, a reserved gap 19 is provided at the supporting structure 18 for the supporting structure 18 to pass through. After the machine room floor 7 is lifted into place, the rods are installed to fill the gaps.

[0027] The embodiments described above are merely descriptions of preferred implementations of the present invention and are not intended to limit the scope of the present invention. Without departing from the spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should fall within the scope of protection determined by the claims of the present invention.

Claims

1. A method for constructing a laminated hanging structure, characterized in that: The following steps are involved: S1: The suspension points of the machine room layer (7) and the horseway (8) are respectively set on the roof beam (9), and the connection nodes of the long suspension rod (6) and the machine room layer (7), the horseway (8) and the roof beam (9) are designed to be connected by a pin (10). The design position of the long suspension rod (6) and the roof beam (9) are located in the same vertical plane; the long suspension rods (6) of the machine room layer (7) and the horseway (8) are connected to the roof beam (9) through the pin (10); S2: The machine room layer (7) and the grape rack (12) are assembled into a whole on the ground. The machine room layer (7) and the grape rack (12) are lifted as a whole by hydraulic lifting. After they are in place, the lower end of the long suspension rod (6) is connected to the machine room layer (7) through a pin shaft (10), and the machine room layer (7) is connected to the steel roof (11) along the circumference of the machine room layer (7) through a horizontal beam (16), forming a horizontal hoop effect; S3: Assemble and lift the horseway (8) layer by layer from top to bottom, and connect the lower end of the long suspension rod (6) to the horseway (8) through the pin (10) after it is in place.

2. A method for constructing a laminated hanging structure according to claim 1, characterized in that: The specific steps of lifting the machine room layer (7) are as follows: multiple groups of hydraulic lifting points are set on the roof beam (9), and a support beam (15) is set under the machine room layer (7). The multiple groups of hydraulic lifting points synchronously lift the machine room layer (7) and the grape rack (12) through the support beam (15).

3. A method for constructing a laminated hanging structure according to claim 2, characterized in that: A lifting frame (14) is provided at each lifting point, two hydraulic cylinders (13) are symmetrically provided on the lifting frame (14), and a supporting beam (15) is provided below the radial main beam (7.1) of the machine room layer (7).

4. A method for constructing a laminated hanging structure according to claim 1, characterized in that: The bridleway (8) is assembled in blocks on the ground, lifted in situ by a hand chain hoist, and then installed by inserting and patching rods.

5. A method for constructing a laminated hanging structure according to claim 4, characterized in that: When the ground below the horseway (8) is flat, the ground assembles the horseway (8) as a whole and the hand chain hoist is used to lift the whole.

6. A method for constructing a laminated hanging structure according to claim 4, characterized in that: When the lower part of the bridleway (8) is a step of a grandstand, the grandstand area is locally leveled by using supporting columns and tire frame crossbeams, and then the bridleway (8) is assembled and lifted in blocks.

7. A method for constructing a laminated hanging structure according to claim 4, characterized in that: For the middle layer of the horseway (8), it is divided into four layers of circular horseways (8) from the center to the outside, and the circular horseways (8) are connected by radial horseways (8). During construction, the central horseway (8) is first lifted as a whole, and then the first section of the radial horseway (8) is lifted and installed. After that, the outer circular horseway (8) is lifted and installed in blocks with the radial horseway (8) as the boundary. According to the above installation method, the subsequent installation of the circular horseway (8) and the radial horseway (8) is completed in sequence.

8. A method for constructing a laminated hanging structure according to claim 4, characterized in that: When the hand chain hoist is lifted, fixed pulleys (17) are arranged on the roof beam (9) and the lifting bridleway (8). After the rope is connected to the upper fixed pulley (17), it passes through the two fixed pulleys (17) in sequence and is pulled to the side of the bridleway (8) to be lifted.

9. The method for constructing a laminated hanging structure according to claim 1, characterized in that: Before the construction of the machine room layer (7), a blocking structure is set at the stage opening.

10. A method for constructing a laminated hanging structure according to claim 9, characterized in that: Before the construction of the machine room layer (7), four groups of supporting structures (18) are set at the bottom of the central ring beam of the steel roof (11). The supporting structures (18) support the steel roof (11). When the machine room layer (7) is lifted, a reserved gap (19) for the supporting structure (18) to pass through is made at the supporting structure (18). After the machine room layer (7) is lifted into place, the rods are installed to fill the gaps.

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