Adjustable profile steel cantilever support

Abstract

The utility model relates to the field of building construction, in particular to an adjustable profile steel cantilever support. Comprising a cantilever steel beam, an embedded ring, a combined inclined strut and a lower embedded plate, the cantilever steel beam is fixed to an upper structural layer through the embedded ring, the upper end of the combined inclined strut is connected with the outer tail end of the cantilever steel beam, and the lower end of the combined inclined strut is connected with a lower structural layer through the lower embedded plate; the combined inclined strut comprises I-shaped steel and channel steel connected to the two sides of the I-shaped steel, the I-shaped steel and the channel steel are connected through an adjusting mechanism, and the adjusting mechanism is used for adjusting the overall length of the combined inclined strut. The adjustable section steel overhanging support is ingenious in design, easy and convenient to install and operate and stable in overall structure stress, supporting system construction of a large-span overhanging structure can be smoothly completed, and on the premise that safety is guaranteed, the turnover rate of the section steel support is greatly increased, and construction cost is reduced.

Description

Technical Field

[0001] The utility model relates to the field of building construction, in particular to an adjustable steel cantilever support in the construction of a large-span cantilever structure support system. Background Art

[0002] The total construction area of ​​a certain project is 10,000 square meters, all of which are above-ground buildings. The overall shape of the three-story frame structure building is an inverted trapezoid with a relatively irregular outer contour. The second-floor 1-2 axis ~ 1-6 axis intersects the area north of 1-H, with an overall span of 26m and a maximum cantilever length of 1.5m; the third-floor 1-1 axis ~ 1-2 axis intersects 1-D axis ~ 1-G axis, with an overall span of 33.4m and a maximum cantilever length of 2.5m; and there are many components with cantilever lengths ranging from 0.5 to 1m.

[0003] The traditional process of completing the above-mentioned multiple cantilever structures requires customized fixed-length I-beam supports, cantilever steel beams, and embedded parts as the foundation of the support system. The specific construction steps are as follows:

[0004] Lower buried plate pre-embedded

[0005] Horizontal cantilever beam installation, fix the cantilever steel beam through embedded ring.

[0006] Measure and lay out the lines, measure the length of the diagonal brace, process the fixed-length I-beam, and weld the two ends of the diagonal brace to the buried plate and the cantilever steel beam respectively.

[0007] The upper support is erected.

[0008] This method of diagonal bracing can only be used once, and the length can only meet the cantilever components of one size. It cannot be applied when the cantilever length and support height of the cantilever components are different; in this case, it can only be cut for other uses. It has poor applicability, low turnover rate, and high occupation cost. Utility Model Content

[0009] In order to solve the above problems, the utility model provides a steel cantilever support with adjustable length, which greatly improves the turnover rate of the steel in the cantilever structure construction and reduces the one-time investment.

[0010] The technical solution adopted by the utility model to achieve the above-mentioned purpose is: an adjustable steel cantilever support, characterized in that: it includes a cantilever steel beam, an embedded ring, a combined diagonal brace, and a lower embedded plate, the cantilever steel beam is fixed to the upper structural layer by the embedded ring, the upper end of the combined diagonal brace is connected to the outer end of the cantilever steel beam, and the lower end is connected to the lower structural layer through the lower embedded plate; the combined diagonal brace includes an I-beam and a channel steel connected to both sides thereof, and the two are connected by an adjustment mechanism, and the adjustment mechanism is used to adjust the overall length of the combined diagonal brace.

[0011] The I-beam of the combined diagonal brace is No. 14 international I-beam, and the channel steel is No. 12 channel steel. The upper end of the channel steel is welded to the outer end of the cantilever steel beam, and the lower end of the I-beam is welded to the lower buried plate. The adjustment mechanism includes a plurality of web openings corresponding to the central axis of the I-beam and the channel steel. The web openings are spaced 10 cm apart and are fixed with high-strength bolts inserted into the holes.

[0012] The embedded ring includes a plastic embedded ring protective sleeve embedded in the concrete of the lower structural layer and an embedded ring connected to the embedded ring protective sleeve. The embedded ring is a HPB300 round steel with a diameter of 20 mm and a threaded end. After the cantilever steel beam is inserted into the embedded ring, a 200*100*10mm steel plate is used to fix it on the top with double nuts.

[0013] The cantilever steel beam includes a main beam inserted into the embedded ring and multiple short steel bars connected to the main beam. The main beam adopts No. 16 national standard I-beam made of Q235 material. The short steel bars have a diameter of 20mm, a length of 10cm, and a spacing of 900mm, and are used to fix the upper steel pipe support frame.

[0014] The lower buried plate has a specification of 250*150*10mm and is fixed in the lower concrete structure by anchoring steel bars at the lower end.

[0015] The utility model has an ingenious design of adjustable steel cantilever support, is easy to install and operate, has a stable overall structural force, and can smoothly complete the support system construction of a large-span cantilever structure. Under the premise of ensuring safety, it greatly improves the turnover rate of the steel support and reduces construction costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of a steel composite diagonal brace of the utility model;

[0017] Figure 2 This is a schematic diagram of the embedded ring of the utility model;

[0018] Figure 3 It is a schematic diagram of the cantilever steel beam of the utility model;

[0019] Figure 4 This is a schematic diagram of the lower buried plate of the utility model;

[0020] Figure 5 It is a schematic diagram of the overall structure of the utility model.

[0021] In the figure: 1 I-beam, 2 channel steel, 3 high-strength bolts, 4 web openings, 5 embedded ring protective sleeves, 6 embedded rings, 7 steel plates, 8 double nuts, 9 cantilever steel beams, 10 short steel bars, 11 lower embedded plates, 12 anchor steel bars. DETAILED DESCRIPTION

[0022] The technical solution of the present utility model is clearly and completely described below in conjunction with the accompanying drawings. Example

[0023] like Figure 5 An adjustable steel cantilever support shown includes a cantilever steel beam 9, an embedded ring 6, a combined diagonal brace, and a lower embedded plate 11. The cantilever steel beam 9 is fixed to the upper structural layer through the embedded ring 6. The upper end of the combined diagonal brace is connected to the outer end of the cantilever steel beam 9, and the lower end is connected to the lower structural layer through the lower embedded plate 11; the combined diagonal brace includes an I-beam 1 and a channel steel 2 connected to both sides thereof, and the two are connected by an adjustment mechanism, and the adjustment mechanism is used to adjust the overall length of the combined diagonal brace.

[0024] like Figure 1 As shown, the I-beam 1 of the combined diagonal brace is an international I-beam No. 14, the channel steel 2 is a channel steel No. 12, the upper end of the channel steel 2 is welded to the outer end of the cantilever steel beam 9, and the lower end of the I-beam 1 is welded to the lower embedded plate 11; the adjustment mechanism includes a plurality of web openings 4 correspondingly opened on the central axis of the I-beam 1 and the channel steel 2, the web openings 4 are spaced 10 cm apart, and high-strength bolts 3 are inserted into the holes to fix them. When different lengths are required, the corresponding positions of the web openings 4 of the I-beam 1 and the channel steel 2 can be adjusted and then tightened. At least three places are tightened to adjust the length of the combined diagonal brace.

[0025] like Figure 2 As shown, the embedded ring 6 includes a plastic embedded ring protective sleeve 5 embedded in the concrete of the lower structural layer, and an embedded ring 6 connected to the embedded ring protective sleeve. The embedded ring 6 is a HPB300 round steel end threaded with a diameter of 20 mm. After the cantilever steel beam 9 is inserted into the embedded ring 6, a 200*100*10mm steel plate 7 is used to fix it on the top with a double nut 8.

[0026] like Figure 3 As shown, the cantilever steel beam 9 includes a main beam inserted into the embedded ring 6 and a plurality of short steel bars 10 connected to the main beam. The main beam adopts No. 16 national standard I-beam made of Q235 material and has a length of 6m. The short steel bars 10 have a diameter of 20mm, a length of 10cm, and a spacing of 900mm, and are used to fix the upper steel pipe support frame to prevent slippage.

[0027] like Figure 4 As shown, the lower embedded plate 11 has a specification of 250*150*10 mm and is fixed in the lower concrete structure by the anchor steel bars 12 at the lower end.

[0028] Obviously, the implementation cases described above are only some embodiments of the utility model, not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

Claims

1. An adjustable steel cantilever support, characterized by: It includes a cantilever steel beam, an embedded ring, a combined diagonal brace, and a lower embedded plate. The cantilever steel beam is fixed to the upper structural layer by the embedded ring. The upper end of the combined diagonal brace is connected to the outer end of the cantilever steel beam, and the lower end is connected to the lower structural layer through the lower embedded plate. The combined diagonal brace includes an I-beam and channel steels connected to both sides thereof, and the two are connected by an adjusting mechanism. The adjusting mechanism is used to adjust the overall length of the combined diagonal brace.

2. The adjustable steel cantilever support according to claim 1 is characterized by: The I-beam of the combined diagonal brace is No. 14 international I-beam, and the channel steel is No. 12 channel steel. The upper end of the channel steel is welded to the outer end of the cantilever steel beam, and the lower end of the I-beam is welded to the lower buried plate. The adjustment mechanism includes a plurality of web openings corresponding to the central axis of the I-beam and the channel steel. The web openings are spaced 10 cm apart and are fixed with high-strength bolts inserted into the holes.

3. The adjustable steel cantilever support according to claim 1 is characterized by: The embedded ring includes a plastic embedded ring protective sleeve embedded in the concrete of the lower structural layer and an embedded ring connected to the embedded ring protective sleeve. The embedded ring is a HPB300 round steel with a diameter of 20 mm and a threaded end. After the cantilever steel beam is inserted into the embedded ring, a 200*100*10mm steel plate is used to fix it on the top with double nuts.

4. The adjustable steel cantilever support according to claim 1 is characterized by: The cantilever steel beam includes a main beam inserted into the embedded ring and multiple short steel bars connected to the main beam. The main beam adopts No. 16 national standard I-beam made of Q235 material. The short steel bars have a diameter of 20mm, a length of 10cm, and a spacing of 900mm, and are used to fix the upper steel pipe support frame.

5. The adjustable steel cantilever support according to claim 1 is characterized by: The lower buried plate has a specification of 250*150*10mm and is fixed in the lower concrete structure by anchoring steel bars at the lower end.

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