Fixture type mounting structure for cantilever scaffold of steel structure corridor

Abstract

The utility model relates to a steel structure corridor cantilever scaffold fixture type installation structure which comprises a structural steel beam, a cantilever beam and a fixture, the cantilever beam is vertically and fixedly connected to the structural steel beam through the fixture, the fixture comprises a clamping base, a clamping plate and a connecting piece, and the clamping base is connected with the lower edge plate of the structural steel beam in a clamped mode through a clamping groove; a clamping hole for the cantilever beam to penetrate through is formed in the middle of the clamping seat; the clamping plate is fixed between the splicing surfaces of the two groups of clamping seats through a connecting piece, and a splicing groove is formed in the middle of the clamping plate; the two sets of clamping plates are symmetrically spliced to the two sides of the cantilever beam, the two sets of splicing grooves are spliced to form a limiting hole matched with the cross section of the cantilever beam in shape, and the cantilever beam is limited in the clamping holes through the limiting hole. The cantilever beam is arranged in the clamping seat in a penetrating mode through the clamping hole, the splicing grooves of the two sets of clamping plates are spliced into the limiting holes matched with the cross section of the cantilever beam in shape, the limiting holes are distributed in the clamping hole and limit the cantilever beam, so that swinging of the cantilever beam in the clamping hole is limited, and the stability of a connecting joint between the cantilever beam and the clamp is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of steel structure building construction, in particular to a clamp-type installation structure of a steel structure corridor cantilever scaffolding. Background Art

[0002] In recent years, with the continuous development of steel structure buildings in my country, the application of steel structure buildings in public buildings and civil residences has become a common phenomenon, and steel structure scaffolding projects are an indispensable part of steel structure buildings.

[0003] For corridors that are high or require work to be done from the outside of the building, traditional ground-based scaffolding is not suitable for use because of its long erection time, low economic benefits, and the fact that traffic will not be able to pass under the steel structure after erection, affecting subsequent construction.

[0004] Cantilever scaffolding (also known as cantilever scaffolding) refers to a scaffolding in which the frame structure unloads on a rigid cantilever beam (or rigid cantilever frame) attached to the building structure. It is suitable for high-altitude construction, but the installation of cantilever scaffolding on steel structure buildings is a construction difficulty.

[0005] In the prior art, for example, a utility model patent with patent number CN 205224570 U discloses a clamp for a cantilever scaffolding of a steel structure corridor, which is connected to the corridor main beam through a spliced ​​clamping slot, and the frame main beam of the cantilever scaffolding is passed through and connected through the clamping hole. The cantilever scaffolding can be easily and quickly fixed stably on the steel structure corridor, thereby cantilevering a supporting platform, allowing operations to be carried out without direct support from the ground.

[0006] However, in the above-mentioned prior art, the main beam of the cantilever scaffolding is passed through the clamp through the clamp hole. In order to facilitate the insertion, there is a matching gap between the cantilever beam and the clamp hole, which will cause the cantilever beam to have room to swing in the clamp. This swing will be aggravated when the scaffolding is subjected to dynamic loads (such as wind loads, vibrations, etc.), thereby increasing the instability of the structure and posing a safety hazard; and the repeated movement and vibration of the cantilever beam in the clamp hole will lead to the accumulation of fatigue stress, especially near the connection point. This fatigue will lead to the development of microcracks over time, which may eventually lead to structural failure and cause serious safety accidents.

[0007] Based on this, it is necessary to study the clamp-type installation structure of the cantilever scaffolding of the steel structure corridor. Utility Model Content

[0008] In view of this, the purpose of the utility model is to provide a clamp-type installation structure for a cantilever scaffolding of a steel structure corridor, which can effectively solve the problem of swinging and instability between the cantilever beam and the clamp in the existing clamp-type installation structure due to the penetration relationship.

[0009] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0010] The cantilever scaffolding fixture installation structure of the steel structure corridor includes a structural steel beam, a cantilever beam and a fixture. Both the structural steel beam and the cantilever beam are H-shaped steel structures. The structural steel beam includes an upper edge plate, a lower edge plate and a web plate. The cantilever beam is vertically fixedly connected to the structural steel beam by a fixture. The fixture includes a fixture seat, a fixture plate and a connecting piece. The fixture seat and the fixture plate are both provided with two sets.

[0011] The upper part of the clamping seat has a clamping slot adapted to the lower edge plate of the structural steel beam. Two sets of clamping seats are symmetrically spliced ​​on both sides of the structural steel beam through connecting pieces and are clamped and connected with the lower edge plate of the structural steel beam through the clamping slot; a clamping hole for the cantilever beam to pass through is opened in the middle of the clamping seat;

[0012] The card plate is fixed between the splicing surfaces of the two groups of card seats through a connecting piece, and a splicing groove is opened in the middle of the card plate; the two groups of card plates are symmetrically spliced ​​on both sides of the cantilever beam, and the two groups of splicing grooves are assembled into a limiting hole adapted to the cross-sectional shape of the cantilever beam, and the limiting hole limits the cantilever beam in the card hole.

[0013] Furthermore, the connecting piece is a bolt kit, and an adjusting flat hole is provided on the clamping plate, and the connecting piece passes through the adjusting flat hole to fix the clamping plate and the clamping seat.

[0014] Furthermore, the outer end surface of the clamping plate is vertically connected to the limiting plate. When the two limiting plates are respectively fitted with the side end surfaces of the two clamping seats, the two splicing grooves form limiting holes to limit the cantilever beam.

[0015] Furthermore, the structural steel beams are arranged horizontally at intervals in at least two groups, wherein the two groups of structural steel beams close to the cantilever ends of the cantilever beams are clamped with fixtures; the lower ends of the fixtures away from the cantilever ends extend downward and are fixedly connected to the fixtures near the cantilever ends through inclined beams;

[0016] The cantilever beam horizontally penetrates two sets of fixtures and forms a right-angled triangle structure with the inclined beam.

[0017] Furthermore, the structural steel beams are arranged horizontally at intervals in at least three groups, and the three groups of structural steel beams near the cantilevered ends of the cantilever beams are clamped with fixtures, wherein the lower part of the middle fixture extends downward and is fixedly connected to the fixtures on both sides through the inclined beams;

[0018] The cantilever beam horizontally penetrates three sets of fixtures and forms an isosceles triangle structure with the two oblique beams.

[0019] Furthermore, mounting plates are fixed at both ends of the oblique beam, the mounting plates are fitted with the outer end surfaces of the holder, and the connecting piece penetrates and connects the mounting plates, the holder and the holder into a whole.

[0020] The beneficial effects of the above technical solution are:

[0021] The utility model passes the cantilever beam through the clamping hole in the clamping seat, and arranges a clamping plate between the splicing surfaces of the two groups of clamping seats, and a splicing groove is opened in the middle of the clamping plate. The two groups of clamping plates are symmetrically spliced ​​on both sides of the cantilever beam, and the two groups of splicing grooves are spliced ​​into limiting holes adapted to the cross-sectional shape of the cantilever beam. The limiting holes are distributed in the clamping hole and limit the cantilever beam. Since the limiting holes are formed by splicing from both sides of the cantilever beam, there is no need to pass the limiting holes through the cantilever beam, and there is no need to consider the matching of the hole-axis clearance between the cantilever beam, so that the matching of the limiting holes and the splicing grooves can be tighter, thereby limiting the swing of the cantilever beam in the clamping hole, improving the stability of the connection node between the cantilever beam and the clamp, improving the safety performance of the erection scaffold, and preventing the cantilever beam from repeatedly moving and vibrating in the clamping hole, which will cause the accumulation of fatigue stress, thereby increasing the service life of the clamp. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0023] Figure 2 for Figure 1 A front view of

[0024] Figure 3 is a three-dimensional schematic diagram of the fixture;

[0025] Figure 4 for Figure 3 A top view of

[0026] Figure 5 for Figure 3 A front view of

[0027] Figure 6 for Figure 4 Sectional view in the AA direction;

[0028] Figure 7 for Figure 3 Exploded diagram of

[0029] Figure 8 Another embodiment of the utility model;

[0030] Fig. 9 for Figure 8 A front view of

[0031] Fig.10 Another embodiment of the utility model;

[0032] Fig.11 for Fig.10 A front view of

[0033] Fig.12 It is a three-dimensional schematic diagram of the inclined beam and the mounting base.

[0034] Figure numerals: 1 is a structural steel beam, 2 is a cantilever beam, 3 is a clamp, 4 is a holder, 5 is a clamping plate, 6 is a connecting piece, 7 is a limiting plate, 8 is an inclined beam, 9 is a mounting plate, 101 is an upper edge plate, 102 is a lower edge plate, 103 is a web plate, 201 is a cantilever end, 401 is a clamping groove, 402 is a clamping hole, 501 is a splicing groove, 502 is a limiting hole, and 503 is an adjustment flat hole. DETAILED DESCRIPTION

[0035] The utility model is further described in detail below with reference to the accompanying drawings and specific implementation methods:

[0036] Embodiment 1, this embodiment aims to provide a clamp-type installation structure for cantilever scaffolding of a steel structure corridor, which is mainly used for building scaffolding of a steel structure corridor, and aims to solve the problem of swinging and instability between the cantilever beam and the clamp in the existing clamp-type installation structure due to the penetration relationship.

[0037] Steel structure corridor cantilever scaffolding clamp-type installation structure, such as Figure 1 and Figure 2 , including a structural steel beam 1, a cantilever beam 2 and a fixture 3. The structural steel beam 1 and the cantilever beam 2 are both H-shaped steel structures. The structural steel beam 1 includes an upper edge plate 101, a lower edge plate 102 and a web 103. The cantilever beam 2 is vertically fixedly connected to the structural steel beam 1 by the fixture 3. Figure 3-7 The clamp 3 includes a clamping seat 4, a clamping plate 5 and a connecting piece 6, and the clamping seat 4 and the clamping plate 5 are each provided with two groups; the upper part of the clamping seat 4 has a clamping groove 401 adapted to the lower edge plate 102 of the structural steel beam 1; the two groups of clamping seats 4 are symmetrically spliced ​​on both sides of the structural steel beam 1 through the connecting piece 6, and are clamped and connected with the lower edge plate 102 of the structural steel beam 1 through the clamping groove 401, so that the clamp 3 is fixed on the structural steel beam 1; the middle part of the clamping seat 4 is provided with a clamping hole 402 for the cantilever beam 2 to pass through, the cantilever beam 2 is the basic main beam for building the scaffolding, and the clamping hole 402 is clearance-matched with the cantilever beam 2 to facilitate the cantilever beam 2 to pass through.

[0038] There is a gap between the splicing surfaces of the two groups of clamps 4, so that the clamping plate 5 is fixed between the splicing surfaces of the two groups of clamps 4, and the connecting piece 6 is a bolt kit, which penetrates the two groups of clamps 4 and the clamping plate 5 at the same time and connects them together; a splicing groove 501 is opened in the middle of the clamping plate 5, and the two groups of clamping plates 5 are symmetrically spliced ​​on both sides of the cantilever beam 2, and the two groups of splicing grooves 501 are assembled into an H-shaped limiting hole 502 that is adapted to the cross-sectional shape of the cantilever beam 2, and the limiting hole 502 is tightly matched with the cantilever beam 2, and when tightly matched, the limiting hole 502 is distributed within the range of the clamping hole 402, and the limiting hole 502 limits the cantilever beam 2 in the clamping hole 402 to prevent it from loosening.

[0039] An adjustment flat hole 503 is provided on the clamping plate 5, and the connecting piece 6 passes through the adjustment flat hole 503 to fix the clamping plate 5 and the clamping seat 4 together. The adjustment flat hole 503 allows the connecting piece 6 to be loosened, and the two clamping plates 5 can be translated along the adjustment flat hole 503, so that the two splicing grooves 501 are separated from each other to facilitate the cantilever beam 2 to penetrate, and to facilitate the cantilever beam 2 to penetrate, while optimizing the installation steps.

[0040] If the embodiment does not use the adjustment flat hole 503, the installation steps are: first, the two clamping seats 4 are clamped on the lower edge plate 102 of the structural main beam, then the cantilever beam 2 is hoisted and passed through the clamping hole 402, two clamping plates 5 are installed to form the limiting hole 502 to limit the cantilever beam 2, and finally the connecting piece 6 is passed through to fix and connect them as a whole. Before installing the connecting piece 6, it is necessary to perform relatively cumbersome position adjustment and maintenance work on each component.

[0041] The installation steps when the adjustment flat hole 503 is used in this embodiment are: firstly, the two clamping seats 4 are clamped on the lower edge plate 102 of the structural main beam, and the two clamping plates 5 are installed. The connecting member 6 passes through the adjustment flat hole 503 to connect the clamping seat 4 and the clamping plate 5 together, and the position of the clamping plate 5 is adjusted to make the two splicing grooves 501 far apart; the cantilever beam 2 is hoisted and passed through the clamping hole 402 and the two splicing grooves 501; then, the connecting member 6 is loosened, and the position of the clamping plate 5 is adjusted to form the limiting hole 502 to limit the cantilever beam 2; finally, the connecting member 6 is tightened. By installing the connecting member 6 first, the difficulty of adjusting and maintaining each component can be reduced.

[0042] Furthermore, in order to facilitate disassembly and assembly, the outer end face of each clamping plate 5 is vertically connected to the limiting plate 7, and the outer end face is the side away from the splicing groove 501. The limiting plate 7 and the clamping plate 5 are an integrated structure. When the two limiting plates 7 are respectively attached to the side end faces of the two clamping seats 4, the two splicing grooves 501 form limiting holes 502 to limit the cantilever beam 2.

[0043] Embodiment 2: This embodiment is basically the same as Embodiment 1, except that this embodiment further describes the structure for the case of more than two groups of structural steel beams 1.

[0044] In this embodiment, Figure 8 and Fig. 9 There are at least two groups of structural steel beams 1 arranged horizontally at intervals, among which the two groups of structural steel beams 1 close to the cantilever end 201 of the cantilever beam 2 are clamped with fixtures 3; the lower end of the fixture 3 away from the cantilever end 201 extends downward and is fixedly connected to the fixture 3 close to the cantilever end 201 through the inclined beam 8; the cantilever beam 2 horizontally penetrates the two groups of fixtures 3 and forms a right-angled triangle structure with the inclined beam 8, thereby improving the stability of the cantilever structure.

[0045] like Fig.12Mounting plates 9 are fixed at both ends of the oblique beam 8, and the mounting plates 9 are in contact with the outer end surface of the card holder 4. The connecting piece 6 penetrates and connects the mounting plates 9, the card plate 5 and the card holder 4 into a whole.

[0046] Embodiment 3: This embodiment is basically the same as Embodiment 2, except that this embodiment further describes the structure for the case of more than three groups of structural steel beams 1.

[0047] In this embodiment, Fig.10 and Fig.11 There are at least three groups of structural steel beams 1 arranged horizontally at intervals, and the three groups of structural steel beams 1 close to the cantilever end 201 of the cantilever beam 2 are clamped with clamps 3, among which the lower part of the middle clamp 3 extends downward and is fixedly connected to the clamps 3 on both sides through the inclined beam 8; the cantilever beam 2 horizontally penetrates the three groups of clamps 3 and forms an isosceles triangle structure with the two inclined beams 8, thereby improving the stability of the cantilever structure.

Claims

1. A cantilever scaffolding fixture-type installation structure for a steel structure corridor, comprising a structural steel beam (1), a cantilever beam (2) and a fixture (3), wherein the structural steel beam (1) and the cantilever beam (2) are both H-shaped steel structures, the structural steel beam (1) comprises an upper edge plate (101), a lower edge plate (102) and a web plate (103), and the cantilever beam (2) is vertically fixedly connected to the structural steel beam (1) by means of a fixture (3), and characterized in that: The clamp (3) comprises a clamp seat (4), a clamp plate (5) and a connecting piece (6), and the clamp seat (4) and the clamp plate (5) are each provided with two groups; The upper portion of the clamping seat (4) has a clamping slot (401) adapted to the lower edge plate (102) of the structural steel beam (1); two sets of clamping seats (4) are symmetrically spliced ​​on both sides of the structural steel beam (1) through a connecting piece (6) and are clamped and connected to the lower edge plate (102) of the structural steel beam (1) through the clamping slot (401); a clamping hole (402) is provided in the middle portion of the clamping seat (4) for the cantilever beam (2) to pass through; The clamping plate (5) is fixed between the joint surfaces of the two groups of clamping seats (4) through a connecting piece (6), and a joint groove (501) is provided in the middle of the clamping plate (5); the two groups of clamping plates (5) are symmetrically jointed on both sides of the cantilever beam (2), and the two groups of joint grooves (501) are combined to form a limiting hole (502) that is adapted to the cross-sectional shape of the cantilever beam (2), and the limiting hole (502) limits the cantilever beam (2) in the clamping hole (402).

2. The cantilever scaffolding fixture installation structure of the steel structure corridor according to claim 1 is characterized in that: The connecting piece (6) is a bolt set, and an adjusting flat hole (503) is provided on the clamping plate (5). The connecting piece (6) passes through the adjusting flat hole (503) to fix the clamping plate (5) and the clamping seat (4) together.

3. The cantilever scaffolding fixture installation structure of the steel structure corridor according to claim 2 is characterized in that: The outer end surface of the clamping plate (5) is vertically connected to the limiting plate (7), and when the two limiting plates (7) are respectively fitted with the side end surfaces of the two clamping seats (4), the two splicing grooves (501) form limiting holes (502) to limit the cantilever beam (2).

4. The cantilever scaffolding fixture installation structure of the steel structure corridor according to claim 1 is characterized in that: The structural steel beams (1) are arranged in at least two groups at intervals horizontally, wherein two groups of structural steel beams (1) close to the cantilevered ends (201) of the cantilevered beams (2) are clamped with clamps (3); the lower end of the clamp (3) away from the cantilevered ends (201) extends downward and is fixedly connected to the clamp (3) close to the cantilevered ends (201) via an inclined beam (8); The cantilever beam (2) horizontally penetrates the two sets of fixtures (3) and forms a right-angled triangle structure with the inclined beam (8).

5. The cantilever scaffolding fixture installation structure of the steel structure corridor according to claim 1 is characterized in that: The structural steel beams (1) are arranged in at least three groups at intervals horizontally, and the three groups of structural steel beams (1) close to the cantilever ends (201) of the cantilever beams (2) are clamped with fixtures (3), wherein the lower part of the middle fixture (3) extends downward and is fixedly connected to the fixtures (3) located on both sides through inclined beams (8); The cantilever beam (2) horizontally penetrates three sets of fixtures (3) and forms an isosceles triangle structure with the two inclined beams (8).

6. The cantilever scaffolding fixture installation structure of the steel structure corridor according to claim 4 or 5, characterized in that: Mounting plates (9) are fixed at both ends of the inclined beam (8), the mounting plates (9) are in contact with the outer end surface of the clamping seat (4), and the connecting piece (6) penetrates and connects the mounting plate (9), the clamping plate (5) and the clamping seat (4) into a whole.

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