Unconventional cantilever scaffold

Abstract

The utility model relates to the technical field of constructional engineering, and discloses an unconventional cantilever scaffold which is erected on a floor slab and a side beam of a building structural body and comprises a cantilever mechanism and a plurality of embedded anchoring mechanisms, the cantilever mechanism comprises a main beam rod, a short vertical rod and an inclined strut supporting rod which are fixedly connected together, the main beam rod is arranged on the top face of the floor slab, and the short vertical rod is arranged on the top face of the inclined strut supporting rod. One end of the main beam rod extends out of a floor to form a cantilever end, the short vertical rod is located on the bottom face of the cantilever end of the main beam rod and used for abutting against the side beam, and the inclined strut is located between the side, away from the side beam, of the short vertical rod and the bottom face of the cantilever end of the main beam rod. According to the cantilever scaffold, the construction difficulty is reduced, and compared with a conventional cantilever scaffold which is obliquely pulled through a steel wire rope, the cantilever scaffold has the advantages that the construction difficulty is reduced, the construction speed is high, the safety is high, the cantilever scaffold can be recycled and repeatedly used, waste materials are not generated, and the construction cost is reduced. And the green construction requirement is met.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of building engineering, in particular to a non-conventional cantilevered scaffold. BACKGROUND

[0002] In recent years, with the rapid development of civil buildings, the building height is increasing, especially under the current situation of building residential land shortage, civil residential development is mostly high-rise residential, but due to the large amount of one-time steel pipe and fastener investment of floor type scaffold, with the increase of structural layer, the floor type scaffold cannot meet the construction needs.

[0003] At present, the cantilevered scaffold is the most common one in high-rise building engineering, but when the cantilevered outer scaffold forms a non-conventional cantilevered scaffold with an overlong cantilever end due to special construction needs, the far end of the horizontal cantilevered steel beam needs to be increased in section or provided with an upper inclined cable structure to control due to excessive deflection, which not only complicates the construction, but also the commonly used inclined steel wire rope is prone to elongation under stress due to its flexible characteristics, increasing the safety risk of the cantilevered scaffold. SUMMARY

[0004] The utility model aims to provide a non-conventional cantilevered scaffold, which aims to solve or improve at least one of the above technical problems.

[0005] To achieve the above-mentioned purpose, the utility model provides the following scheme: the utility model provides a non-conventional cantilevered scaffold, which is erected on the floor and side beam of a building structure and comprises:

[0006] A cantilever mechanism comprising a main beam rod, a short vertical rod and an inclined support rod fixedly connected together, the main beam rod is arranged on the top surface of the floor, one end of the main beam rod extends out of the floor to form a cantilever end, the short vertical rod is located on the bottom surface of the cantilever end of the main beam rod, the short vertical rod is used to abut against the side beam, and the inclined support rod is located between the bottom surface of the cantilever end of the main beam rod and the side of the short vertical rod away from the side beam.

[0007] A plurality of pre-buried anchoring mechanisms arranged on the floor, the pre-buried anchoring mechanisms are detachably connected with the main beam rod.

[0008] Optionally, the pre-buried anchoring mechanism comprises:

[0009] A U-shaped bolt anchor ring arranged on the floor, and the main beam rod is located in the inner ring of the U-shaped bolt anchor ring.

[0010] An angle steel arranged on the top surface of the main beam rod, and the angle steel is detachably connected with the U-shaped bolt anchor ring through a nut.

[0011] Optionally, a plurality of first steel bars are arranged in the floor, and the first steel bars are used for fixing the position of the U-shaped bolt anchor ring.

[0012] Optionally, wooden wedges are arranged between the two sides of the main beam rod and the U-shaped bolt anchor ring.

[0013] Optionally, wooden boards are arranged between the floor and the main beam rod.

[0014] Optionally, a plurality of second steel bars are arranged on the top surface of the cantilever end of the main beam rod, and the second steel bars are used for mounting inner and outer steel pipe scaffolds.

[0015] Optionally, the main beam rod is a profile steel.

[0016] Optionally, the short vertical rod and the inclined support rod are channel steels.

[0017] Optionally, the three embedded anchor mechanisms are arranged at a distance of 200 mm away from the cantilever end of the main beam rod.

[0018] The utility model discloses the following technical effects:

[0019] By arranging a plurality of embedded anchor mechanisms capable of being detachably connected with the main beam rod on the floor, and prearranging the main beam rod, the short vertical rod and the inclined support rod fixedly connected together, the short vertical rod is used for replacing the side beam embedded part, can be directly placed on the floor during construction, and the construction difficulty is reduced.

[0020] By adopting the short vertical rod and the side beam, the short vertical rod, the inclined support rod and the main beam rod form a right-angled triangle shape, the inclined support rod can provide an upward supporting force for the main beam rod, the bending moment borne by the main beam rod can be greatly reduced, the settlement of the outer end of the main beam rod is greatly reduced, and the horizontal component force transmitted by the inclined support rod is directly borne by the concrete frame beam, so that the bending moment acting on the upper support of the short vertical rod is not generated. BRIEF DESCRIPTION OF DRAWINGS

[0021] The drawings constituting a part of the present application are used to provide further understanding of the present application, and the illustrative embodiments of the present application and the description thereof are used to explain the present application, and do not constitute improper limitation on the present application. In the drawings:

[0022] Fig. 1 It is a whole structure schematic view of the utility model;

[0023] Fig. 2 The utility model discloses a pre-burying anchoring mechanism structure schematic diagram.

[0024] In the drawing: 1, main beam rod;2, angle steel;3, U bolt anchor ring;4, nut;5, first steel bar;6, floor;7, wood board;8, wooden wedge;9, side beam;10, inner and outer foot steel pipe;12, short vertical rod;13, inclined support rod;14, second steel bar. DETAILED DESCRIPTION

[0025] The cantilevered scaffold is a simple facility used in construction, mainly used for the main body or decoration engineering operation and safety protection needs in high-rise or super high-rise building construction. It transmits the load of the scaffold to the building structure through the support structure such as cantilever beam or cantilever truss, and gets rid of the dependence on ground support of traditional scaffold.

[0026] The inner and outer foot steel pipe refers to the steel pipe used for erecting scaffold, mainly used for construction operation. According to the different positions and functions, the foot steel pipe can be divided into inner foot steel pipe and outer foot steel pipe.

[0027] The inner foot steel pipe is erected in the interior of the building, mainly used for masonry of inner and outer walls and indoor decoration construction. Its characteristics are less material, but frequent assembly and disassembly, so it requires light and flexible, and convenient assembly and disassembly. The structure of the inner foot steel pipe is various, including folding type, support type and portal type.

[0028] The outer foot steel pipe refers to the scaffold erected on the periphery of the building, mainly used for masonry of outer wall, outer facade decoration and reinforced concrete engineering. The use range of the outer foot steel pipe is wide, including floor type outer scaffold, hanging type scaffold, cantilever type scaffold and hanging type scaffold.

[0029] The cross section shape of the profile steel is various, including simple cross section profile steel (such as square steel, round steel, flat steel, angle steel, etc.) and complex cross section profile steel (such as I-beam, channel steel, window frame steel, etc.). The stress characteristics of the steel are different due to the type, and the simple cross section profile steel is usually used for non-bearing structure, and the complex cross section profile steel (such as I-beam, channel steel) is used for bearing structure.

[0030] The cross section of the channel steel is "U" shape, the two flanges are parallel and the web extends up and down, the steel has high bending and shear strength, and is suitable for being used as the main force component.

[0031] The technical scheme in the embodiments of the utility model will be clearly and completely described in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without creative labor belong to the protection scope of the utility model.

[0032] In order to make the above-mentioned purposes, features and advantages of the utility model more apparent, clear and understandable, the utility model will be further described in detail below in combination with the drawings and specific embodiments.

[0033] With reference to Figs. 1-2 The utility model provides a kind of unconventional cantilevered scaffold, erects on the floor 6 and side beam 9 of building structure body, comprising:

[0034] Cantilever mechanism, including fixedly connected together main beam rod 1, short vertical rod 12 and diagonal bracing strut 13, main beam rod 1 is set on the top surface of floor 6, main beam rod 1 one end extends floor 6 and forms cantilever end, short vertical rod 12 is located in the cantilever end bottom surface of main beam rod 1, short vertical rod 12 is used to be in abutment with side beam 9, diagonal bracing strut 13 is located between the cantilever end bottom surface of main beam rod 1 and the side of short vertical rod 12 away from side beam 9;

[0035] Multiple pre-buried anchoring mechanisms are set on the floor 6, and the pre-buried anchoring mechanisms are detachably connected with the main beam rod 1.

[0036] By setting multiple pre-buried anchoring mechanisms capable of being detachably connected with the main beam rod 1 on the floor 6, and pre-providing the main beam rod 1, the short vertical rod 12 and the diagonal bracing strut 13 fixedly connected together, the short vertical rod 12 is used to replace the side beam 9 embedded part, and can be directly placed on the floor during construction, thereby reducing the construction difficulty. Compared with the conventional cantilevered scaffold using steel wire rope diagonal pull, the construction difficulty is reduced, the construction speed is fast, the safety is high, the waste is not generated, and the green construction requirement is met.

[0037] By using the short vertical rod 12 in abutment with the side beam 9, the short vertical rod 12, the diagonal bracing strut 13 and the main beam rod 1 form a right-angled triangle shape, the diagonal bracing strut 13 can provide an upward supporting force to the main beam rod 1, the bending moment borne by the main beam rod 1 can be greatly reduced, the settlement of the outer end of the main beam rod 1 is greatly reduced, and the horizontal component force transmitted by the diagonal bracing strut 13 is directly borne by the concrete frame beam, so that no bending moment is generated on the upper support of the short vertical rod 12; the vertical component force borne by the upper support of the short vertical rod 12 to the diagonal bracing strut 13 is smaller than the axial force of the diagonal bracing strut 13, so that the deflection problem of the large cantilevered steel beam can be solved.

[0038] In an embodiment of the utility model, the pre-buried anchoring mechanism comprises:

[0039] The U-shaped bolt anchor ring 3 is set on the floor 6, and the main beam rod 1 is located in the inner ring of the U-shaped bolt anchor ring 3.

[0040] The angle steel 2 is set on the top surface of the main beam rod 1, and the angle steel 2 is detachably connected with the U-shaped bolt anchor ring 3 through the nut 4.

[0041] The main girder rod 1 is fixed on the floor 6 by forming a fixed structure through the nut 4, the angle steel 2 and the U-shaped bolt anchor ring 3.

[0042] The U-shaped bolt anchor ring 3 is processed into a U-shaped anchor ring by using a φ20mm round steel, and is embedded in the concrete of the floor 6, and the U-shaped bolt anchor ring 3 is installed after the reinforcement binding of the side beam 9 of the floor 6 is completed.

[0043] Further, the length of the thread on the upper opening of the U-shaped bolt anchor ring 3 is 200mm, and the upper opening is chamfered.

[0044] In an embodiment of the utility model, it further includes a plurality of first reinforcing steels 5 arranged in the floor 6, and the first reinforcing steel 5 is used for fixing the position of the U-shaped bolt anchor ring 3.

[0045] The first reinforcing steel 5 is specifically two, and the first reinforcing steel 5 is a 1.5m long φ18HRB335 reinforcing steel, and the floor 6 or the side beam 9 concrete is poured after the U-shaped bolt anchor ring 3 is fixed.

[0046] In an embodiment of the utility model, the wood wedge 8 is arranged between the two sides of the main girder rod 1 and the U-shaped bolt anchor ring 3, so that the main girder rod 1 is fixed.

[0047] In an embodiment of the utility model, the wood board 7 is arranged between the floor and the main girder rod, so as to adjust the flatness, and the floor 6 or the side beam 9 concrete is uniformly stressed.

[0048] In an embodiment of the utility model, a plurality of second reinforcing steels 14 are arranged on the top surface of the cantilever end of the main girder rod 1, and the second reinforcing steel 14 is used for installing the inner and outer steel pipe 10 of the scaffold.

[0049] In an embodiment of the utility model, the main girder rod 1 is a profile steel.

[0050] In an embodiment of the utility model, the short vertical rod 12 and the inclined support rod 13 are channel steels.

[0051] In an embodiment of the utility model, the plurality of pre-embedded anchoring mechanisms are specifically three, and the distance between the two pre-embedded anchoring mechanisms away from the cantilever end of the main girder rod 1 is 200mm.

[0052] The utility model further provides a kind of erection method of non-conventional cantilever scaffold, including the following steps:

[0053] A plurality of pre-embedded anchoring mechanisms are pre-embedded and arranged on the floor 6, specifically, embed U-shaped bolt anchor ring 3 in the floor 6 or side beam 9 before pouring concrete, and embed 2 first reinforcing steels 5 for fixing U-shaped bolt anchor ring 3, then pour floor 6 or side beam 9 concrete;

[0054] The main girder rod 1 is erected on the floor 6 and the short vertical rod 12 is abutted with the side beam 9 and the pre-buried anchoring mechanism is connected with the main girder rod 1; specifically, after the floor 6 or the side beam 9 concrete reaches the design strength, the cantilever mechanism is installed, then the angle steel 2 and the nut 4 for pressing the top are installed, the wooden board 7 is arranged between the main girder rod 1 and the floor 6, the inner and outer steel pipes 10 are installed at the cantilever end of the main girder rod 1 as the cantilevered scaffold, after the main girder rod 1 is installed in place, the gap between the bottom of the short vertical rod 12 and the side beam 9 is checked one by one, if the gap exists, the wedge-shaped steel plate is used for filling and is fixed by spot welding.

[0055] Further, before the cantilever mechanism is installed, the main girder rod 1, the short vertical rod 12 and the inclined support rod 13 are welded, the short vertical rod 12 and the inclined support rod 13 are also welded, the second steel bar 14 is welded at the position of the inner and outer steel pipes 10 of the main girder rod 1, so as to prevent the inner and outer steel pipes 10 from sliding.

[0056] Construction process: early construction preparation (the floor 6 or the side beam 9 full-frame, formwork support, steel bar binding are completed) → U-shaped bolt anchor ring 3 installation → floor 6 or side beam 9 concrete pouring → cantilever mechanism installation → pre-buried anchoring mechanism installation → cantilevered scaffold erection → cantilevered scaffold dismantling → cantilever mechanism dismantling → pre-buried anchoring mechanism dismantling.

[0057] In the description of the present application, it should be understood that the orientation or position relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present application, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the present application.

[0058] The above-described embodiments are only preferred modes of the present application, and do not limit the scope of the present application, and various modifications and improvements to the technical solutions of the present application made by those skilled in the art without departing from the design spirit of the present application should fall within the protection scope of the present application.

Claims

1. An unconventional cantilevered scaffold, erected on a floor (6) and a side beam (9) of a building structure, characterized in that, The invention relates to a cantilever mechanism, comprising a main beam rod (1) fixedly connected with a short vertical rod (12) and a diagonal support rod (13), the main beam rod (1) is arranged on the top surface of a floor (6), one end of the main beam rod (1) extends out of the floor (6) to form a cantilever end, the short vertical rod (12) is arranged on the bottom surface of the cantilever end of the main beam rod (1), and the short vertical rod (12) is used to abut against a side beam (9), the diagonal support rod (13) is arranged between the bottom surface of the cantilever end of the main beam rod (1) and the side away from the side beam (9) of the short vertical rod (12). A plurality of pre-buried anchoring mechanisms are arranged on the floor (6), and the pre-buried anchoring mechanisms are detachably connected with the main beam rod (1). The pre-buried anchoring mechanism comprises:

2. A non-conventional cantilevered scaffold as claimed in claim 1, wherein, A U-shaped bolt anchor ring (3) arranged on the floor (6), and the main beam rod (1) is arranged in the inner ring of the U-shaped bolt anchor ring (3); An angle steel (2) arranged on the top surface of the main beam rod (1), and the angle steel (2) is detachably connected with the U-shaped bolt anchor ring (3) through a nut (4). A plurality of first reinforcing steels (5) arranged in the floor (6), and the first reinforcing steels (5) are used to fix the position of the U-shaped bolt anchor ring (3).

3. A non-conventional cantilevered scaffold as claimed in claim 2, wherein, Wood wedges (8) are arranged between the two sides of the main beam rod (1) and the U-shaped bolt anchor ring (3).

4. The non-conventional cantilevered scaffold of claim 2, wherein, A wooden board (7) is arranged between the floor and the main beam rod.

5. The non-conventional cantilevered scaffold of claim 1, wherein, A plurality of second reinforcing steels (14) are arranged on the top surface of the cantilever end of the main beam rod (1), and the second reinforcing steels (14) are used to mount inner and outer steel pipes (10).

6. The non-conventional cantilevered scaffold of claim 1, wherein, The main beam rod (1) is a profile steel.

7. The non-conventional cantilevered scaffold of claim 1, wherein, The short vertical rod (12) and the diagonal support rod (13) are channel steels.

8. The non-conventional cantilevered scaffold of claim 1, wherein, The pre-buried anchoring mechanism is specifically three, and the distance between the two pre-buried anchoring mechanisms away from the cantilever end of the main beam rod (1) is 200 mm.

9. The non-conventional cantilevered scaffold of claim 1, wherein, ​

Images