Cantilever handling frame for edge of precast beam of multi-layer industrial factory building

Abstract

The utility model relates to a prefabricated beam edge overhanging operation frame for a multi-layer industrial factory building, which is mounted on an edge prefabricated main beam through mounting holes reserved in the edge prefabricated main beam and comprises a plurality of overhanging cross rods, lower supporting rods, fixing rods, vertical connecting rods, inclined supporting rods, protective vertical rods, protective cross rods and large walkway cross rods. The mounting holes are reserved in the edge precast beam, and the overhanging type handling frame can be mounted on the side face of the precast beam in a steel pipe overhanging mode, so that the defects in the prior art are overcome; particularly, the operation frame can be installed on the precast beam in advance before the precast beam is hoisted, and after the precast beam is hoisted to a floor, floor surface edge protection is immediately formed, so that the safety risk of follow-up high-altitude operation is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction, in particular to an edge cantilevered operating frame for prefabricated beams of multi-story industrial plants. Background Art

[0002] In recent years, with the rapid development of modern industry, land resources have become increasingly scarce, the demand and standards for factory building construction have been continuously improved, and multi-story industrial factories and "industrial buildings" have gradually developed into a trend. In order to meet these needs, although the traditional cast-in-place concrete structure factory construction technology has a certain adaptability, it has problems such as long construction period, large resource consumption, and environmental pollution. Therefore, the construction technology of prefabricated concrete structure factory building came into being, and because of its advantages such as high efficiency, environmental protection, and energy saving, it has gradually become the mainstream technology for modern factory building construction, providing technical support for the construction of prefabricated factories. In the prefabricated concrete structure factory building, the use of prefabricated beams and composite floor decking whole pouring structure system can achieve the advantages of formwork-free and rapid construction, and has good comprehensive economic benefits.

[0003] When industrial plants are constructed using precast beams and composite floor slab cast-in-place structural systems, after the precast beams are hoisted, an operating frame should be promptly set up at the edge of the floor to ensure the safety of subsequent floor reinforcement and formwork construction.

[0004] The commonly used construction method for edge operation frames is to erect an integral floor-standing scaffolding. This construction method has a large amount of work, a long construction period, and a large amount of demolition in the later stage. The erection of a floor-standing scaffolding requires a large amount of site space, which is extremely unfavorable for the interlacing of construction procedures. The scaffolding foundation needs to be hardened, which is costly. The exterior walls of industrial plants are mostly made of metal plate walls. During the construction of the exterior walls, scaffolding is not required. The erection of an integral floor-standing scaffolding has a low utilization rate of the frame and is relatively wasteful. In addition, due to the use function and equipment requirements of industrial plants, the floor height is generally high. It is difficult to arrange the wall parts when erecting a floor-standing scaffolding, which affects the overall stability of the frame. In addition, there are certain safety risks in the erection of scaffolding at high altitudes. Utility Model Content

[0005] In order to overcome the problems of the prior art, such as long construction period, large amount of engineering, high cost, large amount of ground space occupied, overall stability to be improved, and safety risks in high-altitude operations, the utility model proposes a cantilevered operating frame for the edge of prefabricated beams in multi-story industrial plants. By reserving mounting holes on the edge of the prefabricated beams, the cantilevered operating frame can be installed on the side of the prefabricated beams by cantilevering steel pipes, thereby overcoming the defects of the prior art; in particular, the operating frame can be pre-installed on the prefabricated beams before they are hoisted, and after the prefabricated beams are hoisted to the floor, the edge protection of the floor is immediately formed, eliminating the safety risks of subsequent high-altitude operations.

[0006] In order to achieve the above-mentioned purpose, the first aspect of the utility model proposes a cantilever operating frame for prefabricated beams of multi-story industrial plants, wherein the operating frame is installed on the prefabricated main beams of the edge through the mounting holes reserved on the prefabricated main beams of the edge, and comprises a plurality of cantilever cross bars, lower support bars, fixed bars, vertical connecting bars, diagonal support bars, protective vertical bars, protective cross bars and large walkway cross bars, wherein:

[0007] The mounting holes are through-beam holes, and two rows of upper and lower holes are transversely arranged on the outer side surface of the adjacent precast main beam, and the mounting holes in the two rows correspond to each other up and down; the cantilever cross bar is installed through the upper row of mounting holes, and the lower support rod is installed through the lower row of mounting holes, and the length of the protruding part of the cantilever cross bar on the outer side surface of the adjacent precast main beam is greater than the length of the protruding part of the lower support rod on the outer side surface of the adjacent precast main beam; the protruding parts of the cantilever cross bar and the lower support rod on the inner side surface of the adjacent precast main beam are each transversely connected and fixed by a fixing rod; each cantilever cross bar is connected and fixed to the root of the protruding part of the corresponding lower support rod on the outer side surface of the adjacent precast main beam by a vertical connecting rod;

[0008] Each cantilevered cross bar is fixedly connected to a vertical protective upright at the end of the protruding part on the outer side of the adjacent prefabricated main beam, and the lower end of the protective upright and the lower end of the corresponding vertical connecting rod are fixedly connected by a diagonal brace; multiple protective uprights are fixedly connected by multiple parallel protective cross bars; multiple cantilevered cross bars are fixedly connected by multiple parallel large walkway cross bars.

[0009] Furthermore, a skirting board is provided on the vertical surface formed by the protective vertical poles and the protective horizontal poles; and a walkway board is provided on the horizontal surface formed by the cantilevered horizontal poles and the large horizontal poles of the walkway.

[0010] Furthermore, a safety net is provided above the skirting board, and the safety net can be, for example, a dense mesh safety net.

[0011] In one embodiment, the diameter of the mounting holes is 60 mm, and the horizontal spacing between adjacent mounting holes is 1 m. The horizontal spacing may be the distance between the axes (centers) of adjacent mounting holes.

[0012] The distance between the upper and lower rows of mounting holes can be set according to actual conditions, for example, 0.8-1.2 m. Here, the distance between the upper and lower rows of mounting holes can be the distance between the axes (centers) of the two corresponding mounting holes.

[0013] In one embodiment, a PVC sleeve is provided in the installation hole, and the cantilever crossbar, lower support rod, fixed rod, vertical connecting rod, diagonal support rod, protective vertical rod, protective crossbar and large walkway crossbar are all steel pipes.

[0014] Furthermore, the fixed connection is threaded connection, pin connection, fastener connection, welding and / or riveting. Those skilled in the art can select or use a combination of connection methods according to actual needs.

[0015] Furthermore, the fixing rod and the vertical connecting rod are both arranged close to the adjacent prefabricated main beam.

[0016] Furthermore, the spacing between the protective horizontal bars is 600 mm; the top of the protective vertical bars is 1.5 m higher than the floor working surface.

[0017] Furthermore, the angle between the diagonal brace and the cantilever cross bar is in the range of 45 to 60 degrees.

[0018] The second aspect of the utility model also proposes a construction method for a cantilevered operating frame for a prefabricated beam of a multi-story industrial plant, the method comprising the following steps:

[0019] (1) When producing the prefabricated main beams on the edge of the factory building, the installation holes shall be reserved in advance according to the erection positions of the cantilever crossbars and lower support bars of the cantilever operating frame;

[0020] (2) After the prefabricated beams are produced, they are hoisted to the beam storage area and the cantilever operating frame is set up;

[0021] (3) First, erect the cantilever horizontal bar, lower support bar, and fixed bar, then erect the vertical connecting rod, protective vertical pole, protective horizontal bar, and large walkway horizontal bar, and finally erect the diagonal support bar;

[0022] (4) After the cantilever operating frame is accepted, the prefabricated main beam will be hoisted to the floor;

[0023] (5) Use steel pipes to connect the disconnected parts of the upper frames of adjacent prefabricated main beams;

[0024] (6) Install walkway boards, skirting boards and safety nets.

[0025] In one embodiment, a PVC sleeve is pre-buried in the installation hole of step (1).

[0026] In one embodiment, after step (6), the method further comprises:

[0027] (7) The rack is inspected and a sign of acceptance is displayed after passing the inspection.

[0028] The beneficial effects of the utility model include:

[0029] 1. The cantilever frame does not occupy ground space, which is convenient for construction process insertion;

[0030] 2. The frame is a cantilever frame, so there is no need to consider ground foundation treatment, which greatly reduces the cost;

[0031] 3. The cantilevered operating frame is equipped with diagonal braces to form a stable triangular structure;

[0032] 4. The cantilever frame can be erected on the ground before the prefabricated beams are hoisted, which greatly reduces the workload of high-altitude operations. After the prefabricated beams are hoisted to the floor, the floor edge protection is immediately formed, which is safe and reliable;

[0033] 5. The construction method is simple, and the amount of steel pipes to be erected is small. It is only necessary to cantilever a frame with a height of more than 1.5m above the working surface on one side of the prefabricated beam to meet the relevant specifications. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the utility model in which a cantilever operating frame is installed on a prefabricated (main) beam at an edge and hoisted to the floor.

[0035] Figure 2 for Figure 1 main view.

[0036] Figure 3 for Figure 1 Top view of the .

[0037] Figure 4 This is a schematic diagram of the overall structure in which a cantilevered operating frame is installed on a prefabricated (main) beam at an edge in one embodiment of the utility model.

[0038] Figure 5 for Figure 4 Side view of.

[0039] [Description of Reference Numerals]

[0040] 1 column, 2 column cap, 3 precast main beam, 4 precast secondary beam, 5 fixing rod, 6 protective cross bar, 7 fastener, 8 protective vertical rod, 9 cantilever cross bar, 10 lower support rod, 11 vertical connecting rod, 12 diagonal support rod, 13 large walkway cross bar, 14 walkway board, 15 skirting board, 16 installation hole. DETAILED DESCRIPTION

[0041] In order to better understand the above technical solution, exemplary embodiments of the present utility model will be described in more detail below with reference to the accompanying drawings.

[0042] Although the exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to enable a clearer and more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0043] In the description of the present utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0044] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like 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 an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0045] In the present utility model, unless otherwise clearly specified and limited, when a first feature is “on” or “below” a second feature, it may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, when a first feature is “above”, “above” or “above” a second feature, it may be that the first feature is directly above or obliquely above the second feature, or it may simply mean that the first feature is higher in level than the second feature. When a first feature is “below”, “below” or “below” a second feature, it may be that the first feature is directly below or obliquely below the second feature, or it may simply mean that the first feature is lower in level than the second feature.

[0046] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "embodiment", "example", "specific example" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0047] Example 1

[0048] like Figures 1 to 3 As shown, it shows a schematic diagram of the overall structure after the cantilever operating frame in one embodiment of the utility model is installed on the prefabricated (main) beam at the edge of the factory building and hoisted to the floor.

[0049] The plant has two floors, the first floor is 17.2m high and supported by columns (1). Column caps (2) are arranged at the tops of the columns (1). Precast main beams (3) are arranged between the column caps (2). The precast main beams (3) are arranged at the edges, and a plurality of parallel precast secondary beams (4) are arranged between a pair of opposite edge precast main beams (3). The second floor structure adopts a pre-tensioned prestressed precast beam and a steel truss floor deck integral cast structure system, and the second floor edge facing operating frame adopts a cantilever operating frame.

[0050] The cantilever operating frame is installed on the adjacent prefabricated main beam (3) through the mounting hole (16) reserved on the adjacent prefabricated main beam (3), and comprises a plurality of cantilever cross bars (9), a lower support bar (10), a fixing bar (5), a vertical connecting rod (11), an oblique support bar (12), a protective vertical bar (8), a protective cross bar (6) and a large walkway cross bar (13), wherein:

[0051] The mounting holes (16) are through-beam holes, that is, they penetrate the thickness direction of the prefabricated main beam (3), and corresponding openings are shown on the outer side and inner side of the prefabricated main beam (3), and two upper and lower rows are transversely arranged on the outer side of the adjacent prefabricated main beam (3), and the mounting holes in the two rows correspond to each other up and down; the cantilever cross bar (9) is installed through the upper row of mounting holes (16), and the lower support rod (10) is installed through the lower row of mounting holes (16), and the cantilever cross bar (9) is installed on the adjacent prefabricated main beam (3) the length of the extended portion of the outer side surface is greater than the length of the extended portion of the lower support rod (10) on the outer side surface of the adjacent prefabricated main beam (3); the extended portions of the cantilevered cross bar (9) and the lower support rod (10) on the inner side surface of the adjacent prefabricated main beam (3) are each connected and fixed laterally via a fixing rod (5); the root of each cantilevered cross bar (9) and the extended portion of the corresponding lower support rod (10) on the outer side surface of the adjacent prefabricated main beam (3) is connected and fixed via a vertical connecting rod (11);

[0052] Each cantilevered crossbar (9) is fixedly connected to a vertical protective upright pole (8) at the end of the protruding portion on the outer side surface of the adjacent prefabricated main beam (3); the lower end of the protective upright pole (8) and the lower end of the corresponding vertical connecting rod (11) are fixedly connected via a diagonal brace (12); a plurality of protective upright poles (8) are fixedly connected via a plurality of parallel protective crossbars (6); and a plurality of cantilevered crossbars (9) are fixedly connected via a plurality of parallel large walkway crossbars (13).

[0053] Example 2

[0054] On the basis of Example 1, further, a skirting board (15) is provided on the vertical surface formed by the protective vertical pole (8) and the protective horizontal bar (6); a walkway board (14) is provided on the horizontal surface formed by the cantilevered horizontal bar (9) and the large walkway horizontal bar (13); and a dense mesh safety net (not shown) is also provided above the skirting board (15).

[0055] Example 3

[0056] On the basis of Example 2, further, the diameter of the mounting hole (16) is 60 mm, the horizontal spacing (hole center distance) between adjacent mounting holes (16) is 1 m, and the distance between the upper and lower rows of mounting holes (hole center distance) is 1 m; a PVC sleeve is provided in the mounting hole (16), each rod is a steel pipe, and each component is fixedly connected using fasteners and bolts and nuts; the fixed rod (5) and the vertical connecting rod (11) are both arranged close to the adjacent prefabricated main beam (3) to increase the overall stability of the cantilever operating frame; the spacing of the protective cross bars (6) is 600 mm; the top of the protective vertical rod (8) is 1.5 m above the floor working surface; the angle between the diagonal support rod (12) and the cantilever cross bar (9) is 60 degrees.

[0057] Example 4

[0058] On the basis of Example 2, further, the cantilever cross bar (9) adopts a steel pipe with a diameter of 48.3 mm and a wall thickness of 3.2 mm; the length of the cantilever cross bar (9) extending from the outer side surface of the adjacent precast main beam (3) is 1.1 m, and the length of the extending part on the inner side surface is 0.1 m; the length of the lower support rod (10) extending from the outer side surface and the inner side surface of the adjacent precast main beam (3) is both 0.1 m.

[0059] Example 5

[0060] The construction method of the cantilever operating frame of Example 1 comprises the following steps:

[0061] (1) When the prefabricated main beam (3) is produced on the edge of the factory building, a mounting hole (16) is reserved in advance according to the erection position of the cantilever cross bar (9) and the lower support bar (10) of the cantilever operating frame, and a PVC sleeve is pre-buried in the mounting hole (16);

[0062] (2) After the prefabricated beam (3) is produced, it is hoisted to the beam storage area and the cantilever operation frame is set up;

[0063] (3) First, erect the cantilever crossbar (9), the lower support bar (10), and the fixed bar (5), then erect the vertical connecting rod (11), the protective vertical rod (8), the protective crossbar (6), the large walkway crossbar (13), and finally erect the diagonal support bar (12);

[0064] (4) After the cantilever operating frame is inspected and accepted, the prefabricated main beam (3) is hoisted to the floor;

[0065] (5) connecting the disconnected parts of the upper frames of the adjacent prefabricated main beams (3) with steel pipes;

[0066] (6) Install walkway board (14), skirting board (15), and safety net;

[0067] (7) The rack is inspected and a sign of acceptance is displayed after passing the inspection.

[0068] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A cantilever operating frame for prefabricated beams at the edge of multi-story industrial plants, characterized in that: The operating frame is installed on the prefabricated main beam on the edge through the mounting holes reserved on the prefabricated main beam on the edge, and includes a plurality of cantilever cross bars, lower support bars, fixed bars, vertical connecting rods, diagonal support bars, protective vertical bars, protective cross bars and large walkway cross bars, wherein: The mounting holes are through-beam holes, and two rows of upper and lower holes are transversely arranged on the outer side surface of the adjacent precast main beam, and the mounting holes in the two rows correspond to each other up and down; the cantilever cross bar is installed through the upper row of mounting holes, and the lower support rod is installed through the lower row of mounting holes, and the length of the protruding part of the cantilever cross bar on the outer side surface of the adjacent precast main beam is greater than the length of the protruding part of the lower support rod on the outer side surface of the adjacent precast main beam; the protruding parts of the cantilever cross bar and the lower support rod on the inner side surface of the adjacent precast main beam are each transversely connected and fixed by a fixing rod; each cantilever cross bar is connected and fixed to the root of the protruding part of the corresponding lower support rod on the outer side surface of the adjacent precast main beam by a vertical connecting rod; Each cantilevered cross bar is fixedly connected to a vertical protective upright at the end of the protruding part on the outer side of the adjacent prefabricated main beam, and the lower end of the protective upright and the lower end of the corresponding vertical connecting rod are fixedly connected by a diagonal brace; multiple protective uprights are fixedly connected by multiple parallel protective cross bars; multiple cantilevered cross bars are fixedly connected by multiple parallel large walkway cross bars.

2. The cantilever operating frame according to claim 1, characterized in that: A skirting board is arranged on the vertical surface formed by the protective vertical poles and the protective horizontal poles; a walkway board is arranged on the horizontal surface formed by the cantilevered horizontal poles and the large horizontal poles of the walkway.

3. The cantilever operating frame according to claim 2, characterized in that: A safety net is also provided above the skirting board.

4. The cantilever operating frame according to any one of claims 1 to 3, characterized in that: The diameter of the mounting holes is 60 mm, and the horizontal spacing between adjacent mounting holes is 1 m.

5. The cantilever operating frame according to claim 4, characterized in that: The distance between the upper and lower rows of mounting holes is 0.8-1.2m.

6. The cantilever operating frame according to claim 1, characterized in that: The fixed connection is a threaded connection, a pin connection, a fastener connection, welding and / or a riveted connection.

7. The cantilever operating frame according to claim 1, characterized in that: The fixing rod and the vertical connecting rod are both arranged close to the adjacent prefabricated main beam.

8. The cantilever operating frame according to claim 1, characterized in that: A PVC sleeve is arranged in the installation hole.

9. The cantilever operating frame according to claim 1, characterized in that: The spacing between the protective horizontal bars is 600mm; the top of the protective vertical bars is 1.5m higher than the floor working surface.

10. The cantilever operating frame according to claim 1, characterized in that: The angle between the diagonal brace and the cantilever crossbar is in the range of 45 to 60 degrees.

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