CN211472855U - Steel construction primary and secondary roof beam connected node - Google Patents
Steel construction primary and secondary roof beam connected node Download PDFInfo
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- CN211472855U CN211472855U CN201922032441.0U CN201922032441U CN211472855U CN 211472855 U CN211472855 U CN 211472855U CN 201922032441 U CN201922032441 U CN 201922032441U CN 211472855 U CN211472855 U CN 211472855U
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- roof beam
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Abstract
The utility model relates to a steel construction primary and secondary roof beam connected node. This steel construction primary and secondary roof beam connected node includes girder, secondary beam and connecting plate, the web of secondary beam has the section of stretching out between the flange board about stretching out to the girder, connecting plate fixed connection be in stretch out the tip of section, the connecting plate extends along secondary beam width direction, the connecting plate with the girder passes through high strength bolt fixed connection. The utility model discloses a floor effect is fully considered to steel construction primary and secondary roof beam connected node, and for articulated node, the bearing capacity is higher, and is better to fissured control effect, helps reducing the probability of concrete fracture. Compare steel construction primary and secondary roof beam connected node among the prior art, the utility model discloses a steel construction primary and secondary roof beam connected node is through connecting at the connecting plate and the girder bolted connection of secondary roof beam tip, and connected mode is simple, and construction period can effectively be shortened in convenient construction.
Description
Technical Field
The utility model relates to a building engineering technical field especially relates to a steel construction primary and secondary roof beam connected node.
Background
The steel structure has the characteristics of high strength, light dead weight and high rigidity, so that the steel structure is suitable for building large-span, ultrahigh and extra-heavy buildings such as some frame buildings. The steel structure primary and secondary beam connection nodes are usually the most in the construction process of a steel frame building, and the node structure has direct influence on the strength and the rigidity of the nodes and the stress and the deformation of the whole structure. The connection mode of the nodes directly influences the working performance of the steel structure building. The main beam and the secondary beam in the combined structure of the steel beam and the concrete adopt a connection mode of hinging or welding connection of a connecting plate and a bolt connection.
The hinge joint is generally realized by adopting a web friction type high-strength bolt, and the connection mode is generally that a connecting plate 3 on a main beam 1 extends outwards to be connected with a secondary beam 2, as shown in figure 1. Or the web plate of the secondary beam 2 extends into the main beam 1 to be connected with the connecting plate 4, as shown in figure 2. Or the primary and secondary beams are connected by the connecting plate 5 to improve the node strength, as shown in fig. 3. However, when the structure has high requirements for the strength of the joint (such as more spans of secondary beams, high load, a cross beam structure and a cantilever beam structure on the secondary beams), and the hinge point cannot meet the requirements, the steel structure primary and secondary beam joints are designed by rigid joints. The connection mode is generally that the flanges of the primary and secondary beams are directly connected by the groove welding, as shown in fig. 4; or the upper and lower parts of the flange plate are respectively provided with a cover plate 6 for welding, as shown in figure 5. However, the relatively common hinge form of the primary and secondary beams easily causes the concrete floor to crack; the rigid connection mode requires site construction, and the construction process is complex.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problems, the utility model provides a steel structure primary and secondary beam connecting node, which aims to solve the technical problems that the steel structure primary and secondary beam connecting node in the prior art is easy to crack a concrete floor and has low safety; or the technical problems of on-site construction and complex construction process exist.
The utility model discloses a steel construction primary and secondary roof beam connected node's technical scheme is:
the utility model provides a steel construction primary and secondary beam connected node includes girder, secondary beam and connecting plate, the web of secondary beam has the section of stretching out between the flange board about stretching out to the girder, connecting plate fixed connection be in the tip of the section of stretching out, the connecting plate extends along secondary beam width direction, the connecting plate with the girder passes through high strength bolt fixed connection.
As a further improvement on the technical scheme, the end part of the extending section is provided with a notch, and a web plate spliced with the notch is arranged on the web plate of the main beam.
As a further improvement to the technical scheme, the jointed boards extend to the end part of the upper flange plate of the main beam along the width direction of the main beam.
As a further improvement to the technical scheme, the lower end of the connecting plate extends to the lower flange plate of the secondary beam.
As a further improvement to the technical scheme, the number of the secondary beams is two, the two secondary beams are arranged on two sides of the main beam, and the connecting plates correspondingly connected with the two secondary beams are fixedly connected through the high-strength bolts.
As a further improvement to the above technical solution, the upper flange plate of the main beam and the upper flange plate of the secondary beam are arranged in a coplanar manner, and a plurality of pegs are arranged on both the upper flange plate of the main beam and the upper flange plate of the secondary beam at equal intervals.
As a further improvement to the technical scheme, the connecting node further comprises a floor slab, the floor slab is arranged on the upper sides of the flange plates on the main beam and the secondary beam, and the end part of the floor slab is provided with a connecting structure matched with the stud.
The utility model provides a steel construction primary and secondary roof beam connected node compares in prior art, and its beneficial effect lies in:
the utility model discloses a floor effect is fully considered to steel construction primary and secondary roof beam connected node, and for articulated node, the bearing capacity is higher, and is better to fissured control effect, helps reducing the probability of concrete fracture. Compare steel construction primary and secondary roof beam connected node among the prior art, the utility model discloses a steel construction primary and secondary roof beam connected node is through connecting at the connecting plate and the girder bolted connection of secondary roof beam tip, and connected mode is simple, and construction period can effectively be shortened in convenient construction.
Drawings
FIG. 1 is a structural schematic diagram of a first connecting joint of a steel-structure primary beam and a secondary beam in the prior art;
FIG. 2 is a structural schematic diagram of a second connecting joint of a steel-structure primary beam and a steel-structure secondary beam in the prior art;
FIG. 3 is a schematic structural diagram of a third connecting joint of a steel-structure primary beam and a secondary beam in the prior art;
FIG. 4 is a schematic structural diagram of a connection node four of a steel-structure primary beam and a steel-structure secondary beam in the prior art;
FIG. 5 is a schematic structural diagram of a fifth connecting joint of a steel-structure primary beam and a steel-structure secondary beam in the prior art;
FIG. 6 is a schematic structural view of the connection node of the primary and secondary beams of the steel structure of the present invention;
FIG. 7 is a front view of the connection node of the primary and secondary beams of the steel structure of the present invention;
FIG. 8 is a side view of the connection node of the steel structure primary and secondary beams of the present invention;
in the figure: 1. a main beam; 2. a secondary beam; 3. a connecting plate; 4. a connecting plate; 5. a connecting plate; 6. pressing a plate; 7. a main beam; 71. a web; 72. an upper flange plate; 73. a lower flange plate; 74. splicing plates; 8. a secondary beam; 81. a web; 82. an upper flange plate; 83. a lower flange plate; 9. a connecting plate; 10. high-strength bolt.
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
The utility model discloses a concrete embodiment of steel construction primary and secondary roof beam connected node, as shown in figure 6, figure 7, figure 8, including girder 7, secondary roof beam 8 and connecting plate 9. The main beam 7 adopts hot-rolled narrow-flange H-shaped steel HN 345X 174X 6X 9, and the secondary beam 8 adopts hot-rolled narrow-flange H-shaped steel HN 125X 6X 9.
The main beam 7 includes an upper flange plate 72, a lower flange plate 73, and a web 71, and the sub-beam 8 includes an upper flange plate 82, a lower flange plate 83, and a web 81. The web plate 71 of the main beam 7 is provided with two pairs of through holes penetrating through the web plate 71, the two pairs of through holes are arranged at intervals in the length direction of the web plate 71, and each pair of through holes are arranged at intervals up and down.
The web 81 of the secondary beam 8 has an extension extending between the upper flange plate 72 and the lower flange plate 73 of the main beam 7, the extension having a length equal to the distance between the web 71 and the upper flange plate 72 of the main beam 7, so that the upper flange plate 82 of the secondary beam 8 abuts the upper flange plate 72 of the main beam 7.
The connecting plates 9 are connected to the ends of the extending sections, in this embodiment, the connecting plates 9 are two, and two connecting plates 9 are symmetrically arranged on two sides of the web 81 and extend along the width direction of the web 81. The connecting plate 9 is of a rectangular structure, and the lower end of the rectangular connecting plate 9 extends to the lower flange plate 83. Each connecting plate 9 is provided with two connecting holes which are arranged up and down and are correspondingly communicated with a pair of through holes on the web plate 71 of the main beam 7.
In this embodiment, the number of the secondary beams 8 is two, and the two secondary beams 8 have the same structure. The two secondary beams 8 are symmetrically arranged on both sides of the web 71. The connecting holes on the connecting plates 9 correspondingly connected with the two secondary beams 8 are correspondingly communicated, and the connecting plates 9 on the two sides are fixedly connected with the web plate 71 of the main beam 7 through high-strength bolts 10 arranged in the through holes and the connecting holes in a penetrating mode. In this embodiment, the aperture of the connecting hole and the through hole is 22mm, and the high-strength bolt 10 is a 10.9-grade M20 high-strength bolt.
In this embodiment, in order to facilitate the splicing of the main beam 7 and the secondary beam 8, the upper end of the extending section of the secondary beam 8 has a notch structure, and the web of the main beam 7 has a splice plate 74 spliced with the notch. Panels 74 are provided on the underside of upper flange 72 of main beam 7 and extend in the width direction of main beam 7 to the end positions of upper flange 72. The panels 74 are triangular in configuration and, correspondingly, the gaps are triangular in configuration.
The utility model discloses a steel construction primary and secondary roof beam connected node still includes the floor, and the floor is concrete floor. The concrete in the floor slab adopts C30 concrete, and the reinforcing bar all adopts HPB300 reinforcing bar, and the reinforcing bar adopts double-deck two-way arrangement. The thickness of the floor is 100mm, and the thickness of the protective layer is 15 mm. The floor is arranged on the upper sides of the upper web 72 of the main beam 7 and the upper web 82 of the secondary beam 8, a plurality of pegs which are arranged at equal intervals are arranged on the upper side surfaces of the upper web 72 of the main beam 7 and the upper web 82 of the secondary beam 8, the pegs are phi 16 pegs, the tensile strength of the pegs is more than or equal to 400KPa, and the yield strength of the pegs is more than or equal to 320 KPa. The end of the floor slab is provided with a steel bar sleeve ring inserted with a stud, and the stud is inserted into the steel bar sleeve ring to connect the floor slab with the main beam 7 and the secondary beam 8 into a whole.
The utility model discloses a during steel construction primary and secondary roof beam connected node assembly, guarantee the last flange 72 of girder 7 and the last flange 82 parallel and level of secondary roof beam 8, connect the web 71 of connecting plate 9 and girder 7 through high strength bolt 10.
The utility model provides a steel construction primary and secondary roof beam connected node compares in prior art, has following advantage:
the utility model discloses a floor effect is fully considered to steel construction primary and secondary roof beam connected node, and for articulated node, the bearing capacity is higher, and is better to fissured control effect, helps reducing the probability of concrete fracture. Compare in the 8 connected node of steel construction primary and secondary roof beam among the prior art, the utility model discloses a steel construction primary and secondary roof beam connected node is through connecting at the connecting plate 9 and the 7 bolted connection of girder of 8 tip of secondary roof beams, and the connected mode is simple, and convenient construction can effectively shorten construction cycle.
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 replacements can be made without departing from the technical principle of the present invention, and these modifications and replacements should also be regarded as the protection scope of the present invention.
Claims (7)
1. The utility model provides a steel construction primary and secondary roof beam connected node which characterized in that: including girder, secondary beam and connecting plate, the web of secondary beam has the section of stretching out between the flange board about stretching out to the girder, connecting plate fixed connection be in stretch out the tip of section, the connecting plate extends along secondary beam width direction, the connecting plate with the girder passes through high strength bolt fixed connection.
2. The steel structure primary and secondary beam connection node of claim 1, wherein: the end part of the extending section is provided with a notch, and a jointed board spliced with the notch is arranged on a web plate of the main beam.
3. The steel structure primary and secondary beam connection node of claim 2, wherein: the jointed board extends to the end part of the upper flange plate of the main beam along the width direction of the main beam.
4. The steel structure primary and secondary beam connection node according to any one of claims 1 to 3, characterized in that: the lower end of the connecting plate extends to the lower flange plate of the secondary beam.
5. The steel structure primary and secondary beam connection node according to any one of claims 1 to 3, characterized in that: the secondary beams are arranged on two sides of the main beam, and connecting plates correspondingly connected with the two secondary beams are fixedly connected through the high-strength bolts.
6. The steel structure primary and secondary beam connection node according to any one of claims 1 to 3, characterized in that: the upper flange plate of the main beam and the upper flange plate of the secondary beam are arranged in a coplanar manner, and a plurality of equidistant studs are arranged on the upper flange plate of the main beam and the upper flange plate of the secondary beam.
7. The steel structure primary and secondary beam connection node of claim 6, wherein: the connection node further comprises a floor slab, the floor slab is arranged on the upper sides of the flange plates on the main beam and the secondary beam, and the end part of the floor slab is provided with a connection structure matched with the stud.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922032441.0U CN211472855U (en) | 2019-11-21 | 2019-11-21 | Steel construction primary and secondary roof beam connected node |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922032441.0U CN211472855U (en) | 2019-11-21 | 2019-11-21 | Steel construction primary and secondary roof beam connected node |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211472855U true CN211472855U (en) | 2020-09-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922032441.0U Active CN211472855U (en) | 2019-11-21 | 2019-11-21 | Steel construction primary and secondary roof beam connected node |
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| Country | Link |
|---|---|
| CN (1) | CN211472855U (en) |
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2019
- 2019-11-21 CN CN201922032441.0U patent/CN211472855U/en active Active
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