Stepped segmented lifting and hanging operation platform and construction method thereof

Abstract

The platform is arranged on the lower portion of a corridor, a platform frame is erected through I-shaped steel, steel plates are laid on the I-shaped steel frame, lower lifting points are arranged on the I-shaped steel, part of the lower lifting points serve as platform lifting lifting points, and upper lifting points are arranged on a corridor main body structure steel beam. The upper lifting points and the lower lifting points are fixedly connected through pull rods, and the lower portion of the corridor is suspended in a stepped mode after being divided. According to the stepped segmented lifting and hanging operation platform and the construction method thereof, the air operation platform capable of forming a reliable working face and a supporting face is provided for construction of structural components of the hanging part of an air corridor, the platform can be used for personnel to pass through, construction and formwork framed bent erection, and the stepped segmented lifting and hanging operation platform has the advantages of being high in practicability and bearing capacity, easy and convenient to use and the like.

Description

Technical Field

[0001] The invention relates to the field of aerial suspended operating platforms, and in particular to a stepped segmented lifting suspended operating platform and a construction method thereof. Background Art

[0002] There are several main methods for constructing the structure under the sky corridor: (1) setting up a cantilevered operating platform to construct the lower components of the corridor; (2) setting up a Bailey frame under the corridor to construct the lower components; (3) using a hanging basket to construct the lower components of the corridor.

[0003] The above-mentioned construction technologies each have their own advantages, but also have certain defects. The cantilever platform construction has a certain bearing capacity, but when the cantilever span is large, the bearing capacity of the cantilever platform will be greatly weakened, and the construction difficulty of the cantilever platform will also increase. Bailey frames have a wide coverage and strong bearing capacity, but Bailey frames use a large amount of steel and their construction costs are very high. Although the hanging basket construction is more flexible and can better solve the corridor decoration construction, the single hanging basket has a small coverage area, and the hanging basket cannot be used to bear other loads besides personnel, and cannot solve the structural construction needs of the formwork support at the bottom of the corridor. Summary of the invention

[0004] In order to solve the technical problems existing in the prior art, the present invention provides a stepped segmented lifting suspension operating platform and a construction method thereof.

[0005] To achieve the above object, the technical solution of the present invention is as follows:

[0006] A stepped sectional lifting suspended operating platform is arranged at the lower part of a corridor. The main frame of the platform is constructed with I-beams. Steel plates are laid on the I-beam frames. Lower hanging points are arranged on the I-beams, and some of the lower hanging points also serve as platform lifting hanging points. Upper hanging points are arranged on the steel beams of the main structure of the corridor. The upper hanging points and the lower hanging points are fixedly connected by pull rods. The lower part of the corridor is suspended in a stepped manner.

[0007] As a preferred technical solution, the pull rod is made of precision-rolled threaded steel.

[0008] As a preferred technical solution, the hanging points include double hanging points and single hanging points. The double hanging points use double-jointed channel steels to span the steel beam. The high-rolled threaded steel passes through both ends of the double-jointed channel steels and is fixed by gaskets and double nuts to form double hanging points. The double-jointed channel steels are fixed by setting fixed channel steels on both sides of the steel beam and at the bottom of the beam.

[0009] As an optimal technical solution, a single hanging point is formed by welding a vertical steel plate at the bottom of the upper steel beam, welding a horizontal steel plate between the vertical steel plates, and passing the fine-rolled threaded steel through the horizontal steel plate and fixing it with a gasket and a nut to form a single hanging point.

[0010] As a preferred technical solution, the lower hanging point is formed by welding vertical steel plates on the I-beam frame steel beams, welding horizontal steel plates between the vertical steel plates, and passing the fine-rolled threaded steel through the horizontal steel plates and fixing them with gaskets and bolts to form the lower hanging point.

[0011] As a preferred technical solution, a step-by-step lifting construction method for a suspended operating platform includes the following steps:

[0012] Step 1: Divide the lower part of the corridor into several blocks distributed in a stepped manner;

[0013] Step 2: lift the first auxiliary block to be flush with the bottom of the completed structure and perform vertical tensioning and lateral fixing, lift the second auxiliary block to the outside of the first auxiliary block, and perform structural construction at the platform position corresponding to the first auxiliary block;

[0014] Step 3: Continue to lift the second auxiliary block to the upper layer, and lift the third auxiliary block to the outside of the second auxiliary block, and perform structural construction of the second auxiliary block corresponding to the platform position;

[0015] Step 4: Continue construction upwards according to the methods of steps 3 and 4 until the lower structure of the corridor is completed.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The step-type segmented lifting suspension operation platform and the construction method thereof provide an aerial operation platform that can form a reliable working surface and a supporting surface for the construction of the structural components under the aerial corridor, and have the following characteristics:

[0018] (1) Strong practicality: The operating platform has a large plane span, which makes it easy to set up the formwork and operate;

[0019] (2) High bearing capacity: The operating platform has good bearing capacity and can be used as a support surface for the formwork racks in structural construction;

[0020] (3) Simple and convenient: The platform is upgraded in steps, which is easy to operate.

[0021] In terms of technical effects, compared with the construction method of the hanging basket, the stepped segmented lifting operation platform can be designed in blocks according to the shape and size of the structure to be constructed at the bottom of the corridor, and can be lifted in sections. It can provide a complete, large-surface operation and support surface, which effectively solves the problem of lack of construction surface for the construction of the lower components of the suspended structure such as the corridor.

[0022] In terms of economic effect, compared with setting up a Bailey frame under a suspended structure such as a corridor, the steel demand for the stepped segmented lifting operation platform is greatly reduced, and compared with the Bailey frame, the segmented lifting technology of the platform can better adapt to the special-shaped structure under the corridor. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of a stepped segmented lifting suspension operating platform of the present invention;

[0024] Figure 2 It is a plan view of the stepped segmented lifting suspension operation platform of the present invention;

[0025] Figure 3 It is a structural schematic diagram of double suspension points in the stepped segmented lifting suspension operation platform of the present invention;

[0026] Figure 4 It is a structural schematic diagram of a single suspension point in the stepped segmented lifting suspension operation platform of the present invention;

[0027] Figure 5 It is a structural schematic diagram of the lower suspension point in the stepped segmented lifting suspension operation platform of the present invention;

[0028] Figure 6 It is an operation schematic diagram of step three in the construction method of the step-by-step segmented lifting suspension operation platform of the present invention;

[0029] Figure 7 It is an operation schematic diagram of step 4 in the construction method of the step-by-step segmented lifting suspension operation platform of the present invention;

[0030] Figure 8 It is an operation schematic diagram of step five in the construction method of the step-by-step segmented lifting suspension operation platform of the present invention;

[0031] Fig. 9 It is a schematic diagram of the structure of the stepped segmented lifting suspension operation platform and the lateral connection of the plate structure of the present invention;

[0032] Fig.10 It is a schematic diagram of the tie structure of the I-beam frame and the shear wall in the stepped segmented lifting suspension operation platform of the present invention;

[0033] Fig.11 It is a schematic diagram of the tie-joint structure between I-beams in the stepped segmented lifting suspension operating platform of the present invention.

[0034] In the figure: 1. Corridor body; 2. I-beam; 3. Steel plate; 4. Upper hanging point; 5. Lower hanging point; 6. Double-jointed channel steel; 7. Fixed channel steel; 8. Steel beam; 9. High-quality rolled threaded steel; 10. Washer; 11. Nut; 12. Horizontal tie; 13. First auxiliary block; 14. Second auxiliary block; 15. Third auxiliary block; 16. Right-angle fastener; 17. Angle steel; 18. Stiffener plate; 19. Steel pipe; 20. Round steel. DETAILED DESCRIPTION

[0035] The technical solution of the present invention is further described below in conjunction with specific implementation methods:

[0036] like Figure 1 As shown, a stepped segmented lifting suspension operation platform is arranged at the lower part of the corridor. The main frame of the platform is constructed by I-beam 2. Steel plates 3 are laid on the I-beam 2 frame to form a construction work plane. The I-beam 2 is provided with a lower hanging point 5. Figure 2 As shown, some of the lower hanging points 5 also serve as the lifting points during the platform lifting process. The upper hanging point 4 is provided on the structural steel beam 8 of the corridor main body 1. The operating platform is connected to the platform lifting point through a winch and other equipment and then lifted to the required construction position. The upper hanging point 4 and the lower hanging point 5 are fixed by the fine-rolled threaded steel bar 9. The platform is ensured to be stable by lateral connection with the corridor main body 1 structure. According to the shape of the structure to be constructed at the bottom of the corridor, the platform blocks are reasonably designed for step-by-step lifting construction. The platform can be used for personnel passage, construction and template rack erection.

[0037] like Fig. 9 As described above, when the platform and the plate structure are laterally tied, an angle steel 17 is welded to the I-beam 2, and a triangular stiffening plate 18 is welded on the side of the angle steel 17 away from the right angle side, and one end of the square steel pipe 19 is fully welded on the other side of the angle steel 17. The other end of the square steel pipe 19 adopts a symmetrical angle steel 17 and stiffening plate 18 structure, and the bottom of the stiffening plate 18 is fixed to the cast-in-place structure by round steel plug welding.

[0038] like Fig.10 As described above, when the platform is connected to the shear wall structure, the angle steel 17 and the stiffening plate 18 are also welded on the I-beam 2 and connected to one end of the square steel tube 19. The other end of the square steel tube 19 is fixed to a fixed steel plate in the form of a full circumference weld, and the fixed steel plate is fixed to the shear wall through the round steel 20.

[0039] The operating platform fixing rod is made of precision-rolled threaded steel 9.

[0040] The hanging point 4 includes a double hanging point and a single hanging point, such as Figure 3 As shown, the double hanging point is formed by using double-jointed channel steel 6 to span the steel beam 8. The fine-rolled threaded steel 9 passes through both ends of the double-jointed channel steel 6 and is fixed by gaskets 10 and double nuts 11 to form a double hanging point. The double-jointed channel steel 6 is fixed by setting fixed channel steel 7 on both sides of the steel beam 8 and the bottom of the beam.

[0041] like Figure 4 As shown, the single hanging point is formed by welding a vertical steel plate 3 at the bottom of the upper steel beam 8, and welding horizontal steel plates 3 between the vertical steel plates 3. The fine-rolled threaded steel bar 9 passes through the horizontal steel plate 3 and is fixed by a gasket 10 and a nut 11 to form a single hanging point.

[0042] like Figure 5As shown, the lower hanging point 5 is formed by welding a vertical steel plate 3 on the frame steel beam 8 of the I-beam 2, welding a horizontal steel plate 3 between the vertical steel plates 3, and fixing the fine-rolled threaded steel 9 through the horizontal steel plate 3 with a gasket 10 and bolts to form the lower hanging point 5.

[0043] like Fig.11 As shown, when the platforms are tied together, steel pipes 19 are welded to the I-beams 2 and the steel pipes 19 are fixedly connected by right-angle fasteners 16 .

[0044] The following embodiment is an example of the three-stage stepped platform lifting construction of an inverted triangle structure hanging under the corridor, and several auxiliary blocks are required during the construction process.

[0045] A step-by-step lifting construction method for a suspended operating platform comprises the following steps:

[0046] Step 1: Divide the lower part of the corridor into several blocks distributed in a stepped manner;

[0047] Step 2, such as Figure 6 As shown in the figure, the blue part is the layer to be built, and the green part is the cast layer. The first auxiliary block 13 is lifted to be flush with the bottom of the completed structure, i.e., the cast layer, and vertically tied and laterally fixed. The second auxiliary block 14 is lifted to the outside of the first auxiliary block 13, and the structural construction of the first auxiliary block 13 corresponding to the platform position is carried out;

[0048] Step three, such as Figure 7 As shown, continue to lift the second auxiliary block 14 to the upper layer, and lift the third auxiliary block 15 to the outside of the second auxiliary block 14, make the horizontal tie 12 between the platforms, and carry out the structural construction of the second auxiliary block 14 corresponding to the platform position;

[0049] Step 4: Figure 8 As shown, continue construction upwards according to the methods of steps three and four until the lower structure of the corridor is completed.

[0050] According to the shape and size of the construction structure required for the lower part of the corridor, the steel platform can be reasonably divided into blocks and stepped lifting construction can be carried out.

[0051] This embodiment is only a further explanation of the invention rather than a limitation of the invention. After reading this specification, those skilled in the art may make non-creative modifications to this embodiment as needed. However, as long as they are within the scope of the claims of the invention, they are protected by the patent law.

Claims

1. A stepped segmented lifting suspension operating platform, arranged at the lower part of the corridor, characterized in that: The main frame of the platform is constructed with I-beams, and steel plates are laid on the I-beam frame. The I-beams are provided with lower hanging points, and some of the lower hanging points also serve as platform lifting hanging points. Upper hanging points are provided on the steel beams of the main structure of the corridor, and the upper hanging points and the lower hanging points are fixedly connected by pull rods. The lower part of the corridor is suspended in a stepped manner.

2. The stepped segmented lifting suspension operating platform according to claim 1 is characterized in that: The pull rod is made of precision-rolled threaded steel.

3. The stepped segmented lifting suspension operating platform according to claim 2 is characterized in that: The hanging points include double hanging points and single hanging points. The double hanging points are made by using double-jointed channel steel to span the steel beam. The high-rolled threaded steel passes through both ends of the double-jointed channel steel and is fixed by gaskets and double nuts to form double hanging points. The double-jointed channel steel is fixed by setting fixed channel steels on both sides of the steel beam and at the bottom of the beam.

4. The stepped segmented lifting suspension operating platform according to claim 3 is characterized in that: The single hanging point is formed by welding a vertical steel plate at the bottom of the upper steel beam, and horizontal steel plates are welded between the vertical steel plates. The fine-rolled threaded steel passes through the horizontal steel plate and is fixed by gaskets and nuts to form a single hanging point.

5. The stepped segmented lifting suspension operating platform according to claim 2 is characterized in that: The lower hanging point is formed by welding vertical steel plates on the I-beam frame steel beam, welding horizontal steel plates between the vertical steel plates, and fixing the fine-rolled threaded steel through gaskets and bolts to form the lower hanging point.

6. A step-by-step lifting construction method for a stepped step-by-step lifting suspension operating platform according to any one of claims 1 to 5, characterized in that: The method comprises the following steps: Step 1: Divide the lower part of the corridor into several blocks distributed in a stepped manner; Step 2: lift the first auxiliary block to be flush with the bottom of the completed structure and perform vertical tensioning and lateral fixing, lift the second auxiliary block to the outside of the first auxiliary block, and perform structural construction at the platform position corresponding to the first auxiliary block; Step 3: Continue to lift the second auxiliary block to the upper layer, and lift the third auxiliary block to the outside of the second auxiliary block, and perform structural construction of the second auxiliary block corresponding to the platform position; Step 4: Continue construction upwards according to the methods of steps 3 and 4 until the lower structure of the corridor is completed.

Images