Steel platform construction device for high-altitude medium-and-small-span suspended structure construction

Abstract

The utility model discloses a steel platform construction device for high-altitude medium-and-small-span suspended structure construction. The steel platform construction device comprises a steel platform body structure system, a connecting system, a lower supporting system and a dismounting system. The steel platform main body structure system is composed of I-shaped steel girders and channel steel coupling beams, the channel steel coupling beams are placed on the I-shaped steel girders after the I-shaped steel girders are arranged according to a certain interval, and the I-shaped steel girders are fixedly connected into a whole through welding; according to the system, an I-shaped steel main beam is flatly placed on a floor structure, the two ends of the I-shaped steel main beam are connected through U-shaped rings, or the I-shaped steel main beam is connected with the outer side of a cavity edge beam and a column through friction type high-strength bolts; the lower support system is an inclined lower support arranged on each of the two sides of the I-shaped steel main beam; the dismounting system is composed of a guide rail frame, rolling bodies and movable and fixed pulley blocks. According to the utility model, the construction of high-altitude holes, corridors and the like with the span within 10m can be solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of building construction, in particular to a steel platform construction device for high-altitude small-span suspended structure construction, and in particular to the construction fields of high-altitude cavities and corridors with a short span of less than 10m in a connected building structure. Background Art

[0002] With the rapid growth of my country's national economy and the continuous improvement of construction technology, large buildings, industrial facilities, etc. have an increasing demand for tall spaces. Judging from existing cases at home and abroad, high-altitude suspended structures have gradually been applied in some large-scale buildings, and have gradually become an emerging design trend, which has also brought about greater construction difficulties. For this reason, construction technologies and devices such as steel trusses, steel structures, full-floor floor-standing scaffolding, and Bailey beams have been continuously derived. Among them, the full-floor floor-standing scaffolding has a large stacking area, uses a lot of materials, has low erection efficiency, requires a lot of manpower and financial resources, and the slenderness ratio of the vertical pole cannot be well guaranteed, and the risk of instability is high. Although new construction technologies such as steel trusses and Bailey beams have overcome the shortcomings of high safety risks and slow erection efficiency of full-floor floor-standing scaffolding, their structures are complex, and the technical processing of some connection nodes is difficult and the construction precision requirements are high. Therefore, compared with the above methods, it is still crucial to provide an economical, environmentally friendly, safe, and construction-efficient construction technology and device to overcome the difficulties of formwork support, construction difficulty, and high safety risk coefficient of small and medium-span high-altitude suspended structures. Summary of the invention

[0003] The technical problem to be solved by the utility model is to provide a steel platform construction device for high-altitude small-span suspended structure construction, which can solve the construction of high-altitude cavities, corridors and the like within a span of 10m.

[0004] The utility model provides a steel platform construction device for high-altitude small-span suspended structure construction, which is characterized by comprising a steel platform main structure system, a connection system, a lower support system and a disassembly system;

[0005] The main structure system of the steel platform is composed of an I-beam main beam and a channel steel connecting beam. After the I-beam main beam is arranged at a certain interval, the channel steel connecting beam is placed on the I-beam main beam and fixedly connected by welding to form a whole. The interval between the I-beam main beam and the channel steel connecting beam is determined according to the spacing of the vertical poles of the template support frame;

[0006] The steel platform connection system is that the I-beam main beam is placed flat on the floor structure, and the two ends of the I-beam main beam are connected by U-shaped rings, or: the I-beam main beam is connected to the outer side of the hollow side beam and the column by friction type high-strength bolts;

[0007] The steel platform lower support system is an inclined lower support set on both sides of the I-beam main beam. The lower support is cut into horizontal positions at the upper and lower ends according to the inclination angle. The upper end of the lower support is fully welded to the bottom of the I-beam main beam on all four sides; the lower end of the lower support is fully welded to the embedded steel plate of the lower layer of the hollow layer on all four sides; the lower supports are welded and connected by lower support reinforcement parts to increase the stability of the lower support structure;

[0008] The steel platform disassembly system consists of a guide rail frame, a rolling body, and a movable and fixed pulley block; the guide rail frame is fixed to the top plate of the hollow layer by embedded bolts and is arranged vertically with the I-beam main beam; the rolling body is installed in the guide rail frame and can move freely along the guide rail frame; the movable and fixed pulley block is connected to the guide rail frame and the rolling body through a hook to form a whole, which can realize the free sliding disassembly of the steel platform at different longitudinal or transverse positions.

[0009] Preferably, the length of the I-beam main beam is selected according to the size of the building cavity. When the length of the I-beam main beam in the erection direction is greater than the cavity size by 2m or more, the I-beam main beam does not need to be processed; if the length of the I-beam main beam in the erection direction is less than the cavity size by less than 2m, the I-beam main beam needs to be welded and lengthened, and the long and short I-beams are butt-welded. After welding is completed, a steel plate is added on both sides of the web for full welding on all four sides.

[0010] When the two ends of the I-beam main beam are connected by U-shaped rings, one U-shaped ring is pre-embedded on the hollow side beam and two are pre-embedded at the end of the I-beam main beam. Or:

[0011] When friction type high-strength bolts are used to connect the two ends of the I-beam main beam, the friction type high-strength bolts are pre-buried in the beam and column, with the number on each side being greater than or equal to 2.

[0012] If the size of the upper opening of the lower support is too large, place a steel plate between the bottom of the I-beam main beam and the upper opening of the lower support and fully weld them on all four sides.

[0013] Technical effects of the utility model:

[0014] 1) By selecting appropriate steel structure materials, specifications and quantities and adopting hollow design, the aerial work platform can be lightweight, load reduced and structural stability improved while ensuring construction safety.

[0015] 2) By pre-embedding U-shaped hoops or friction-type high-strength bolts, the speed of assembling the I-beam main beam can be increased. At the same time, since the materials are processed in advance, they only need to be lifted to the preset position and the steel platform can be assembled by welding, which greatly shortens the construction period, reduces the loss of manpower and material resources, and does not affect the construction of other processes.

[0016] 3) The I-beam main beams and channel steel beams used are all recyclable materials and can be reused and recycled after construction, saving material costs;

[0017] 4) The length, position, spacing, etc. of the I-beam main beam can be flexibly and reasonably adjusted according to the size and shape of the cavity to achieve cantilevering, transportation, construction and other operations, and adapt to various complex construction conditions.

[0018] 5) Through precise positioning by measuring and laying out, the center of the I-beam web is aligned with the layout position to ensure that the formwork support frame uprights are located in the center of the web and reduce the problem of eccentric force. Hard isolation is set under the steel platform to facilitate welding, assembly and other construction processes for workers, eliminating the risk of falling personnel and materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the plane layout of the utility model;

[0020] Figure 2 for Figure 1 Schematic diagram of the AA section structure;

[0021] Figure 3 for Figure 1 Schematic diagram of the structure of the middle BB section;

[0022] Figure 4 for Figure 1 Schematic diagram of the extension of the middle I-beam main beam;

[0023] Figure 5 for Figure 1 Schematic diagram of the connection of the middle channel steel beam;

[0024] Figure 6 for Figure 1 The schematic diagram of the connection structure of the I-beam main beam placed flat on the floor structure;

[0025] Figure 7 for Figure 1 Schematic diagram of the connection structure between the I-beam main beam and the hollow side beam;

[0026] Figure 8 for Figures 2-3 Schematic diagram of the middle and lower support system;

[0027] Fig. 9 for Figures 2-3 Schematic diagram of the disassembly system in.

[0028] Legend: 1. I-beam main beam; 2. Channel steel connecting beam; 3. Upper end of lower support; 4. U-shaped ring; 5. Friction type high-strength bolt; 6. Lifting ear; 7. Lower support; 8. Hard isolation; 9. Embedded steel plate; 10. External frame; 11. Internal frame; 12. Guide rail frame; 13. Rolling body; 14. Moving and fixed pulley block; 15. Hook; 16. Lower support reinforcement; 17. Lower end of lower support; 18. Steel plate; 19. Wooden wedge; 20. Angle steel; 21. Welding point. DETAILED DESCRIPTION

[0029] The utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. The same parts are represented by the same figure numerals. It should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "vertical", "horizontal", etc. are based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or construction method referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the utility model; the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, 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 integrated connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the utility model can be understood according to specific circumstances.

[0030] Reference Figure 1-3 As shown, the utility model provides an aerial steel platform construction device for assisting the construction of a connected building structure, comprising: a steel platform main structure system, a connection system, a lower support system and a disassembly system;

[0031] The main structure of the steel platform is mainly composed of an I-beam main beam 1 and a channel steel beam 2. After the I-beam main beam 1 is arranged at a certain interval, the channel steel beam 2 is placed on the I-beam main beam 1 and fixedly connected to form a whole through welding points 21. The spacing between the I-beam main beam 1 and the channel steel beam 2 is determined according to the spacing of the vertical poles of the template support frame; the length, position and spacing of the I-beam main beam 1 can be flexibly and reasonably adjusted according to the size and shape of the cavity;

[0032] The steel platform connection system is selected according to the surrounding environment of the cavity of the connected building, and is divided into an I-beam main beam 1 placed flat on the floor structure, the two ends of the I-beam main beam are connected by U-shaped rings 4, and the I-beam main beam 1 is connected to the outer side of the cavity side beam and the column by friction type high-strength bolts 5;

[0033] The steel platform lower support system mainly comprises a lower support 7 arranged on both sides of the I-beam main beam 1, which is connected to the I-beam main beam 1 by welding;

[0034] The steel platform disassembly system is mainly composed of a guide rail frame 12, a rolling body 13, and a movable and fixed pulley block 14, which are fixed on the top plate of the hollow hole;

[0035] Reference Figure 4 and Figure 5As shown, when the length of the I-beam main beam 1 in the erection direction is less than 2m of the cavity size, the I-beam main beam 1 needs to be welded and lengthened, and the long and short I-beams are butt-welded. After the welding is completed, a steel plate 18 is added on both sides of the web to perform full welding on all four sides;

[0036] Reference Figure 6 As shown, when the I-beam main beam 1 is placed flat on the floor structure, the two ends of the I-beam main beam 1 are connected by U-shaped rings 4, one of which is pre-buried on the hollow side beam and two are pre-buried at the end of the I-beam main beam 1. The I-beam main beam 1 passes through the U-shaped ring 4, and the upper pressing steel plate 18 is fastened with bolts, and the two sides are plugged with wooden wedges 19;

[0037] Reference Figure 7 As shown, when the I-beam main beam 1 is connected to the outer side of the hollow side beam and the column by friction type high-strength bolts 5, the friction type high-strength bolts 5 are pre-buried in the column or side beam, and the number on each side is greater than or equal to 2; the steel plate 18 with bolt holes is fastened to the friction type high-strength bolts 5, and an angle steel 20 is welded on the left and right sides of the steel plate 18. The I-beam main beam 1 is hoisted by a tower crane and laid flat on the angle steel 20. After the position of the I-beam is adjusted, the I-beam main beam 1 is welded to the steel plate 18 and the angle steel 20 into a whole.

[0038] Reference Figure 8 As shown, the lower support 7 cuts the upper opening 3 and the lower opening 17 of the lower support into horizontal positions according to the inclination angle, and the upper opening 3 of the lower support is fully welded to the bottom of the I-beam main beam 1 on four sides. If the upper opening 3 of the lower support is too large, a steel plate 18 is placed between the bottom of the I-beam main beam 1 and the upper opening 3 of the lower support and fully welded on four sides; the lower opening 17 of the lower support is fully welded to the embedded steel plate 9 of the lower layer of the void layer on four sides; the lower support reinforcement 16 is used to connect the lower supports 7 in three ways, namely, upper, middle and lower welding, to increase the stability of the lower support structure.

[0039] Reference Fig. 9 As shown, the guide rail frame 12 is fixed to the top plate of the hollow layer by embedded bolts and is arranged vertically with the I-beam main beam 1; the rolling body 13 is installed in the guide rail frame 12 and can move freely along the guide rail frame 12; the movable and fixed pulley block 14 is connected to the guide rail frame 12 and the rolling body 13 as a whole through the hook 15, which can realize the free sliding disassembly of the steel platform at different positions in the longitudinal or transverse direction.

Claims

1. A steel platform construction device for high-altitude small-span suspended structure construction, characterized in that: Including the steel platform main structure system, connection system, support system and disassembly system; The main structure system of the steel platform is composed of an I-beam main beam and a channel steel connecting beam. After the I-beam main beam is arranged at a certain interval, the channel steel connecting beam is placed on the I-beam main beam and fixedly connected by welding to form a whole. The interval between the I-beam main beam and the channel steel connecting beam is determined according to the spacing of the vertical poles of the template support frame; The steel platform connection system is that the I-beam main beam is placed flat on the floor structure, and the two ends of the I-beam main beam are connected by U-shaped rings, or: the I-beam main beam is connected to the outer side of the hollow side beam and the column by friction type high-strength bolts; The steel platform lower support system is an inclined lower support set on both sides of the I-beam main beam. The lower support is cut into horizontal positions at the upper and lower ends according to the inclination angle. The upper end of the lower support is fully welded to the bottom of the I-beam main beam on all four sides; the lower end of the lower support is fully welded to the embedded steel plate of the lower layer of the hollow layer on all four sides; the lower supports are welded and connected by lower support reinforcement parts to increase the stability of the lower support structure; The steel platform disassembly system consists of a guide rail frame, a rolling body, and a movable and fixed pulley block; the guide rail frame is fixed to the top plate of the hollow layer by embedded bolts and is arranged vertically with the I-beam main beam; the rolling body is installed in the guide rail frame and can move freely along the guide rail frame; the movable and fixed pulley block is connected to the guide rail frame and the rolling body through a hook to form a whole, which can realize the free sliding disassembly of the steel platform at different longitudinal or transverse positions.

2. A steel platform construction device for high-altitude small-span suspended structure construction as claimed in claim 1, characterized in that: The length of the I-beam main beam is selected according to the size of the building cavity. When the length of the I-beam main beam in the erection direction is greater than the cavity size by 2m or more, the I-beam main beam does not need to be processed; if the length of the I-beam main beam in the erection direction is less than the cavity size by less than 2m, the I-beam main beam needs to be welded and lengthened, and the long and short I-beams are butt-welded. After welding is completed, a steel plate is added on both sides of the web for full welding on all four sides.

3. A steel platform construction device for high-altitude small-span suspended structure construction as claimed in claim 2, characterized in that: When the two ends of the I-beam main beam are connected by U-shaped rings, one U-shaped ring is pre-embedded on the hollow side beam and two U-shaped rings are pre-embedded at the end of the I-beam main beam.

4. A steel platform construction device for high-altitude small-span suspended structure construction as claimed in claim 2, characterized in that: When friction type high-strength bolts are used to connect the two ends of the I-beam main beam, the friction type high-strength bolts are pre-buried in the beam and column, with the number on each side being greater than or equal to 2.

5. A steel platform construction device for high-altitude small-span suspended structure construction as claimed in claim 3 or 4, characterized in that: A steel plate is placed between the bottom of the I-beam main beam and the upper end of the lower support and fully welded on all four sides.

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