CN212802449U - Non-pre-buried cantilever steel beam - Google Patents
Non-pre-buried cantilever steel beam Download PDFInfo
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- CN212802449U CN212802449U CN202020405986.1U CN202020405986U CN212802449U CN 212802449 U CN212802449 U CN 212802449U CN 202020405986 U CN202020405986 U CN 202020405986U CN 212802449 U CN212802449 U CN 212802449U
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Abstract
The utility model belongs to the technical field of building construction, in particular to a non-pre-buried cantilever steel beam, which comprises a cantilever steel beam, a first channel steel, a second channel steel, a tightening piece, a triangular steel plate, a rectangular hollow diagonal brace, a floor slab and a beam, wherein the end part of the floor slab is vertically connected with the end part of the beam; one end of the cantilever steel beam is horizontally attached to the floor slab, and the cantilever steel beam is fixed by adopting a rectangular hollow inclined strut, a first channel steel, a second channel steel, a tightening piece and a triangular steel plate; the tightening piece can be finely adjusted through a bolt, and the requirement on installation accuracy is met. When the channel-section steel is connected with the floor and is failed, the danger that the former non-pre-buried formula girder steel of encorbelmenting dropped when being destroyed is eliminated to rectangle truss-like bracing and triangle-shaped steel sheet, has both guaranteed ground staff's safety, also can let the workman have enough time to maintain, because the channel-section steel can guarantee to pass power between each girder steel of encorbelmenting, and also can resist the horizontal shear force that the scaffold produced under strong wind, has also improved the intensity and the rigidity of the girder steel of encorbelmenting.
Description
Technical Field
The utility model belongs to the technical field of the construction, in particular to non-pre-buried formula girder steel of encorbelmenting.
Background
The girder steel of encorbelmenting is as the base of scaffold frame of encorbelmenting, but among the prior art, this non-pre-buried formula girder steel of encorbelmenting only is by two bolted connection in top, and the bolt is fixed in the concrete through pre-buried mode, because the concrete of different positions department probably leads to the concrete intensity of different positions department to be slightly different because of reasons such as water cement ratio or vibration inhomogeneous, this intensity that just directly leads to the bolt of different positions department can bear is different, only installs two bolts in top and probably causes the girder steel of encorbelmenting to be destroyed. And many projects select 7 layers one and choose, when the girder steel that encorbelments that only is fixed by 2 bolts takes place to destroy and will fall from 7 layers, can cause the security threat to the constructor downstairs.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem that above-mentioned exists, the utility model provides a non-pre-buried formula girder steel of encorbelmenting, mainly can prefabricate in advance for development one kind, simple to operate, the installation is accurate, dismantle the structure of encorbelmenting that convenient and atress performance is better, can effectively increase the intensity of girder steel stiff end of encorbelmenting, also can increase the holistic intensity and the rigidity of girder steel of encorbelmenting, also enable every girder steel of encorbelmenting and participate in the atress jointly, also can increase each other anti side shear, thereby also can avoid perforating the wall body and place the girder steel of encorbelmenting and reduce the destruction to the wall body, also can effectual solution non-pre-buried formula girder steel of encorbelmenting take.
The utility model adopts the technical scheme as follows:
a non-pre-embedded cantilever steel beam comprises a cantilever steel beam, a first channel steel, a second channel steel, a tightening piece, a triangular steel plate, a rectangular hollow diagonal brace, a floor slab and a beam;
the end part of the floor slab is vertically connected with the end part of the beam;
one end of the cantilever steel beam is horizontally attached to the floor slab, and the cantilever steel beam is fixed by adopting a rectangular hollow inclined strut, a first channel steel, a second channel steel, a tightening piece and a triangular steel plate;
the width of the triangular steel plate is consistent with that of the cantilever steel beam, the middle of the triangular steel plate is hollow, the upper surface of one right-angle side of the triangular steel plate is in full welding with the bottom of the cantilever steel beam, the surface of the other right-angle side of the triangular steel plate is tightly connected with the beam through two bolts reserved in the beam, the bolts penetrate through the whole beam, and the outer surface of the inclined side of the triangular steel plate is in full welding with the rectangular hollow inclined strut; the width of the rectangular hollow diagonal brace is also consistent with that of the cantilever steel beam, one end of the rectangular hollow diagonal brace is fixed with the cantilever steel beam through two third bolts arranged on the cantilever steel beam, the other end of the rectangular hollow diagonal brace is fixed with the beam through four second bolts arranged on two sides of the beam, and the second bolts penetrate through the whole beam;
the first channel steel and the second channel steel are vertically arranged between adjacent I-shaped steel webs, the channel steel is arranged at the position where the end part of the steel cantilever beam is contacted with the floor slab, the channel steel is connected with the floor slab through a sixth bolt, and the channel steel is tightly attached to the floor slab;
the channel steel is vertically arranged at the top of the I-shaped steel contacted with the rectangular hollow inclined strut;
the tightening piece is arranged in the middle of the triangular steel plate and is connected with the triangular steel plate and the cantilever steel beam; the tightening piece is a U-shaped base, a triangular steel plate and an overhanging steel beam are sleeved, and the rectangular steel plate penetrates through the end parts of two vertical plates on the tightening piece and is fixed through a fifth bolt;
and a plurality of bolts four penetrate through the holes on the two vertical plates of the tightening piece and are propped against the web plate of the cantilever steel beam.
Furthermore, each channel steel is connected with the floor through four bolts, and the bolts are embedded into the floor.
Further, for longitudinal reinforcement, stirrup mutually perpendicular set up inside the roof beam in the roof beam, floor gluten, floor end muscle set up inside the floor perpendicularly.
The sleeve pipe that leaves when the bolt that triangle-shaped steel sheet is connected with the roof beam passes through formwork runs through the roof beam, and the sleeve pipe that leaves when the bolt that rectangle hollow bracing is connected with the roof beam passes through formwork runs through the roof beam.
The utility model has the advantages that:
compared with the prior art, the utility model discloses an effect and advantage as follows:
1) the cantilever steel beam has the advantages of convenient installation, convenient disassembly and better stress performance, and can also increase the strength of the cantilever steel beam.
2) The utility model discloses the girder steel of encorbelmenting does not have any connection with the floor, and all the other members of being connected with the roof beam are all arranged the bolt through the bolt sleeve pipe of reserving and are run through whole roof beam, and bolt reuse has saved the cost.
3) The utility model discloses girder steel mounted position of encorbelmenting is in the coplanar with the floor. Like this when reserving the hole for the channel-section steel, the workman can be more accurate the position of finding the reservation hole, and the construction position is more accurate.
4) The utility model discloses well channel-section steel can guarantee to each to encorbelment and pass power between the girder steel, and also can resist the horizontal shear force that the scaffold produced under strong wind, so also improved the intensity and the rigidity of the girder steel of encorbelmenting.
5) Triangle-shaped steel sheet and the hollow bracing of rectangle can effectively increase the intensity of girder steel stiff end of encorbelmenting, also can reduce the girder steel of encorbelmenting because the torsion unstability phenomenon that the atress position problem took place, so the utility model discloses can encorbelment holistic intensity of girder steel and rigidity, also can effectual solution non-pre-buried formula encorbelment the girder steel and lead to the potential safety hazard of falling because of the bearing capacity is not enough.
6) When the girder steel installation of encorbelmenting, the utility model provides a reduce girder steel accessible bolt of encorbelmenting of a fastening and carry out the level fine setting, reach the installation accuracy requirement.
7) The utility model discloses well channel-section steel can guarantee to pass power between each girder steel of encorbelmenting, improves whole bearing capacity, and also can resist the horizontal shear force that the scaffold produced under strong wind, so also improved girder steel rigidity of encorbelmenting.
8) The utility model discloses well non-pre-buried formula girder steel of encorbelmenting does not have any connection and need not pass the wall body with the floor, has avoided perforating the wall body, has reduced the use of bolt, has kept wall body integrality.
Drawings
FIG. 1 is a top view of a monolithic structure in n floors;
FIG. 2 is a view of the anchoring of the integrated structure within the floor slab;
FIG. 3 is a right side view of any cantilevered structure;
FIG. 4 is a reinforcement diagram of a floor and a beam;
FIG. 5 is a sectional view taken along line A-A;
FIG. 6 is a perspective view of an overhanging steel beam and its reinforcing structure;
in the figure, 1 is the floor, 2 is the girder steel of encorbelmenting, 3 is the hollow bracing of rectangle, 4 is the triangle-shaped steel sheet, 5 is bolt one, 6 is bolt two, 7 is bolt three, 8 is for tightening the piece, 9 is the interior longitudinal reinforcement of roof beam, 10 is the floor gluten, 11 is the floor base muscle, 12 is the stirrup, 13 is the roof beam, 14 is the channel-section steel, 15 is the rectangle steel sheet, 16 is bolt four, 17 is the outer scaffolding, 18 is bolt five, 19 is the channel-section steel, 20 is bolt six.
Detailed Description
The present invention will be described in detail with reference to the following drawings and examples:
example (b): as shown in fig. 1 to 6, a non-embedded cantilever steel beam comprises a cantilever steel beam 2, a first channel steel 14, a second channel steel 19, a tightening member 8, a triangular steel plate 4, a rectangular hollow diagonal brace 3, a floor 1, a beam 13,
the end of the floor slab 1 is vertically connected with the end of the beam 13;
one end of the cantilever steel beam 2 is horizontally attached to the floor slab 1, and the cantilever steel beam 2 is fixed by adopting a rectangular hollow inclined strut 3, a first channel steel 14, a second channel steel 19, a tightening piece 8 and a triangular steel plate 4;
the width of the triangular steel plate 4 is consistent with that of the cantilever steel beam 2, the middle of the triangular steel plate is hollow, the upper surface of one right-angle side of the triangular steel plate 4 is in full welding with the bottom of the cantilever steel beam 2, the surface of the other right-angle side of the triangular steel plate 4 is tightly connected with the beam 13 through two bolts I5 reserved in the beam 13, the bolts I5 penetrate through the whole beam 13, and the outer surface of the inclined side of the triangular steel plate 4 is in full welding with the rectangular hollow inclined strut 3; the width of the rectangular hollow inclined strut 3 is also consistent with that of the cantilever steel beam 2, one end of the rectangular hollow inclined strut 3 is fixed with the cantilever steel beam 2 through two bolts III 7 arranged on the cantilever steel beam 2, the other end of the rectangular hollow inclined strut 3 is fixed with a beam 13 through four bolts II 6 arranged on two sides of the beam 13, and the bolts II 6 penetrate through the whole beam 13;
the first channel steel 14 and the second channel steel 19 are vertically arranged between web plates of the adjacent I-shaped steel 2, the channel steel 14 is arranged at a position where the end part of the cantilever beam 2 is contacted with the floor slab 1, the channel steel 14 is connected with the floor slab 1 through a sixth bolt 20, and the channel steel 14 is tightly attached to the floor slab 1;
the channel steel 19 is vertically arranged at the top of the I-shaped steel 2 contacted with the rectangular hollow inclined strut 3;
the tightening piece 8 is arranged in the middle of the triangular steel plate 4, and the tightening piece 8 is connected with the triangular steel plate 4 and the cantilever steel beam 2; the tightening part 8 is a U-shaped base and is sleeved with the triangular steel plate 4 and the cantilever steel beam 2, and the rectangular steel plate 15 penetrates through the end parts of two vertical plates on the tightening part 8 and is fixed through a fifth bolt 18;
and a plurality of bolts four 16 penetrate through holes in two vertical plates of the tightening part 8 and are propped against the web plate of the cantilever steel beam 2.
Each channel steel 14 is connected with the floor slab 1 through four bolts 8, and the bolts 8 are embedded into the floor slab 1.
A construction method of a non-pre-embedded cantilever steel beam comprises the following steps:
firstly, the triangular steel plate 4 and the rectangular hollow diagonal brace 3 are fastened through a first bolt 5 and a second bolt 6 penetrating through a beam 13, then the cantilever steel beam 2 is placed, a tightening part 8 is used for connecting the cantilever steel beam 2 and the triangular steel plate 4 together through a fifth bolt 18 during placement, then the cantilever steel beam 2 is adjusted to a proper position through a fourth fine adjustment bolt 16 and then welded, and finally a third bolt 7 at the rectangular hollow diagonal brace 3 is screwed, then the channel steel 14 is placed between flanges of the cantilever steel beam 2 close to one side of the floor slab 1, the channel steel 14 is fixed through six bolts 20 pre-embedded in the floor slab 1, meanwhile, the contact surface of the channel steel 14 and the flange is welded, but at the external corner of the building, the channel steel 14 is obliquely arranged, there is not bolted connection with floor 1, with the contact surface welding on cantilever girder steel 2 edges of a wing, repeats these processes, until finishing all girder steel 2 installations that encorbelment, girder steel 2 bearing outer scaffolding 17 that encorbelments at last.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (3)
1. The utility model provides a non-pre-buried formula girder steel of encorbelmenting, includes girder steel (2) of encorbelmenting, channel-section steel one (14), channel-section steel two (19), reduces a (8), triangle-shaped steel sheet (4), rectangle hollow bracing (3), floor (1), roof beam (13), its characterized in that: the end part of the floor (1) is vertically connected with the end part of the beam (13); one end of the cantilever steel beam (2) is horizontally attached to the floor slab (1), and the cantilever steel beam (2) is fixed by adopting a rectangular hollow inclined strut (3), a first channel steel (14), a second channel steel (19), a tightening piece (8) and a triangular steel plate (4); the width of the triangular steel plate (4) is consistent with that of the cantilever steel beam (2), the middle of the triangular steel plate is hollow, the upper surface of one right-angle side of the triangular steel plate (4) is in full welding with the bottom of the cantilever steel beam (2), the surface of the other right-angle side of the triangular steel plate is tightly connected with the beam (13) through two bolts (5) reserved in the beam (13), the bolts (5) penetrate through the whole beam (13), and the outer surface of the bevel edge of the triangular steel plate (4) is in full welding with the rectangular hollow diagonal brace (3); the width of the rectangular hollow diagonal brace (3) is also consistent with that of the cantilever steel beam (2), one end of the rectangular hollow diagonal brace (3) is fixed with the cantilever steel beam (2) through two third bolts (7) arranged on the cantilever steel beam (2), the other end of the rectangular hollow diagonal brace (3) is fixed with the beam (13) through four second bolts (6) arranged on two sides of the beam (13), and the second bolts (6) penetrate through the whole beam (13); the first channel steel (14) and the second channel steel (19) are vertically arranged between webs of adjacent cantilever steel beams (2), the first channel steel (14) is arranged at the position where the end part of the cantilever steel beam (2) is in contact with a floor slab (1), the first channel steel (14) is connected with the floor slab (1) through a sixth bolt (20), and the first channel steel (14) is tightly attached to the floor slab (1); the second channel steel (19) is vertically arranged at the top of the cantilever steel beam (2) in contact with the rectangular hollow inclined strut (3); the tightening piece (8) is arranged in the middle of the triangular steel plate (4), and the tightening piece (8) is connected with the triangular steel plate (4) and the cantilever steel beam (2); the tightening part (8) is a U-shaped base, a triangular steel plate (4) and an overhanging steel beam (2) are sleeved, and a rectangular steel plate (15) penetrates through the end parts of two vertical plates on the tightening part (8) and is fixed through a fifth bolt (18); a plurality of bolts four (16) penetrate through holes in two vertical plates of the tightening part (8) and are propped against a web plate of the cantilever steel beam (2).
2. The non-embedded cantilever steel beam of claim 1, wherein: each channel steel I (14) is connected with the floor slab (1) through four tightening pieces (8), and the tightening pieces (8) are embedded into the floor slab (1).
3. The non-embedded cantilever steel beam of claim 1, wherein: longitudinal steel bars (9) and stirrups (12) in the beam are perpendicular to each other and arranged inside the beam (13), and floor slab gluten (10) and floor slab bottom bars (11) are perpendicular to each other and arranged inside the floor slab (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020405986.1U CN212802449U (en) | 2020-03-26 | 2020-03-26 | Non-pre-buried cantilever steel beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020405986.1U CN212802449U (en) | 2020-03-26 | 2020-03-26 | Non-pre-buried cantilever steel beam |
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| Publication Number | Publication Date |
|---|---|
| CN212802449U true CN212802449U (en) | 2021-03-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020405986.1U Expired - Fee Related CN212802449U (en) | 2020-03-26 | 2020-03-26 | Non-pre-buried cantilever steel beam |
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| CN (1) | CN212802449U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111236605A (en) * | 2020-03-26 | 2020-06-05 | 张延年 | Non-pre-buried cantilever steel beam and reinforcing structure thereof |
-
2020
- 2020-03-26 CN CN202020405986.1U patent/CN212802449U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111236605A (en) * | 2020-03-26 | 2020-06-05 | 张延年 | Non-pre-buried cantilever steel beam and reinforcing structure thereof |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210326 |
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| CF01 | Termination of patent right due to non-payment of annual fee |