CN212506747U - Steel structure combination node of anti progressive collapse - Google Patents
Steel structure combination node of anti progressive collapse Download PDFInfo
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- CN212506747U CN212506747U CN202021005862.0U CN202021005862U CN212506747U CN 212506747 U CN212506747 U CN 212506747U CN 202021005862 U CN202021005862 U CN 202021005862U CN 212506747 U CN212506747 U CN 212506747U
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Abstract
A steel structure combined node capable of resisting continuous collapse comprises steel frame columns, wherein steel frame beams are fixedly connected to the outer sides of the steel frame columns; two ends of the accordion-shaped folding steel plate are fixedly connected with a first backing plate and a second backing plate, and the first backing plate and the second backing plate are fixed on the steel frame column and the steel frame beam through a first high-strength bolt and a second high-strength bolt respectively; when the steel frame columns are subjected to larger vertical pressure and deform relative to the steel frame beams, the accordion-shaped folding steel plates between the beam columns are straightened to absorb deformation energy, so that the joint of the beam column joint is not damaged and collapsed, and the reliability and the stability of the structure are improved; the utility model has the advantages of simple structure, convenient installation, low cost, safety and reliability.
Description
Technical Field
The utility model belongs to the technical field of the building steel construction, concretely relates to steel construction combination node of anti successive collapse.
Background
The fabricated steel structure building has the advantages of low energy consumption, less building waste, short construction period and the like, and is a green building which accords with sustainable development.
In the anti-continuous collapse design of the structure, the node is the most important part, after the vertical bearing component is damaged, no matter the 'alternative path method' paying attention to the overall performance or the 'tie strength method' paying attention to local components, the combined node plays an important role in the anti-continuous collapse of the structure, whether the node is effective or reliable or not is determined, whether an effective internal force distribution path is formed inside the structure or not is determined, and whether the 'suspension cable effect' can be effectively formed in the structure in a large deformation state or not is determined to redistribute the internal force, so that the combined node in the existing building and the newly-built building needs to be reinforced to improve the anti-collapse capability of the structure. When a traditional combined node is reinforced, the bearing capacity and rigidity of the node are improved by increasing the section size of a component so as to achieve the purpose of improving the collapse resistance of the node, but the improvement of the bearing capacity of the node is particularly to improve the rigidity of the node, so that the rigidity of the reinforced node is changed, the performance of the reinforced node is not matched with that of the node which is not reinforced, and the internal force distribution of the structure under normal use load is influenced. Therefore, a strengthening method which does not affect the rigidity of the node is needed.
Disclosure of Invention
In order to overcome the not enough of above-mentioned prior art, the utility model aims to provide an anti steel construction combination node that collapses in succession can improve the performance of steel construction beam column interlinkage node at the anti in-process that collapses, promotes structure global rigidity, prevents that the beam column tie point from taking place to destroy when the large deformation and collapsing, has simple structure, simple to operate, low cost and safe and reliable's advantage.
In order to achieve the above object, the utility model discloses a technical scheme be:
a steel structure combined node resisting continuous collapse comprises a steel frame column 1, wherein a steel frame beam 2 is fixedly connected to the outer side of the steel frame column 1; the two ends of the accordion-shaped folding steel plate 3 are fixedly connected with a first backing plate 4 and a second backing plate 7 respectively, the first backing plate 4 is fixed on the steel frame column 1 through a first high-strength bolt 6, and the second backing plate 7 is fixed on the steel frame beam 2 through a second high-strength bolt 8.
A plurality of stiffening ribs 5 are respectively arranged on the inner walls of the steel frame column 1 and the steel frame beam 2 and between the connecting points of the steel frame column 1 and the steel frame beam 2 and the connecting point of the backing plate 4.
The outer side of the steel frame column 1 and the steel frame beam 2 are welded into a whole.
The stiffening ribs 5 are welded with the steel frame columns 1 and the steel frame beams 2 into a whole.
And two ends of the accordion-shaped folding steel plate 3 are respectively welded with the first backing plate 4 and the second backing plate 7 into a whole.
The strength of the first high-strength bolt 6 and the second high-strength bolt 8 is 8.8 or 10.9 grade.
The steel materials used by the steel frame column 1, the steel frame beam 2, the accordion-shaped folding steel plate 3, the backing plate 4 and the stiffening rib 5 comprise Q235 steel materials, Q345 steel materials, Q390 steel materials or Q420 steel materials.
The beneficial effects of the utility model reside in that:
when the steel frame columns 1 are subjected to larger vertical pressure and deform relative to the steel frame beams 2, the accordion-shaped folding steel plates 3 between the beam columns are straightened to absorb deformation energy, so that the beam column joint is not damaged and collapsed; the utility model has the advantages of simple structure, convenient installation, low cost, safety and reliability.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a front view of the present invention.
Fig. 3 is a schematic structural view of the accordion-shaped folding steel plate of the present invention.
In the figure: 1. a steel frame column; 2. a steel frame beam; 3. accordion-like folded steel plates; 4. a first backing plate; 5. a stiffening rib; 6. a first high-strength bolt; 7. a second backing plate; 8. a second high-strength bolt.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1 to 3, the steel structure combination node for resisting continuous collapse comprises a steel frame column 1, wherein a steel frame beam 2 is fixedly connected to the outer side of the steel frame column 1; the two ends of the accordion-shaped folding steel plate 3 are fixedly connected with a first backing plate 4 and a second backing plate 7 respectively, the first backing plate 4 is fixed on the steel frame column 1 through a first high-strength bolt 6, and the second backing plate 7 is fixed on the steel frame beam 2 through a second high-strength bolt 8.
A plurality of stiffening ribs 5 are arranged on the inner walls of the steel frame column 1 and the steel frame beam 2 and between the connecting points of the steel frame column 1 and the steel frame beam 2 and the connecting point of the backing plate 4.
The outer side of the steel frame column 1 and the steel frame beam 2 are welded into a whole.
The stiffening ribs 5 are welded with the steel frame columns 1 and the steel frame beams 2 into a whole.
And two ends of the accordion-shaped folding steel plate 3 are respectively welded with the first backing plate 4 and the second backing plate 7 into a whole.
The welding is all prefabricated in the factory and finished, and the field assembly is convenient.
The strength of the first high-strength bolt 6 and the second high-strength bolt 8 is 8.8 or 10.9 grade.
The steel materials used by the steel frame column 1, the steel frame beam 2, the accordion-shaped folding steel plate 3, the backing plate 4 and the stiffening rib 5 comprise Q235 steel materials, Q345 steel materials, Q390 steel materials or Q420 steel materials.
The utility model discloses a theory of operation does:
firstly, welding the outer side wall of a steel frame column 1 and a steel frame beam 2 into a whole in a factory, welding a stiffening rib 5 and the inner walls of the steel frame column 1 and the steel frame beam 2 into a whole, and respectively welding two ends of an accordion-shaped folding steel plate 3 and a first backing plate 4 and a second backing plate 7 into a whole; the first backing plate 4 and the second backing plate 7, the steel frame column 1 and the steel frame beam 2 are fixedly connected through the first high-strength bolts 6 and the second high-strength bolts 8 on the construction site, so that the steel frame column 1 and the steel frame beam 2 are integrally stressed, when the steel frame column 1 is subjected to large vertical pressure and deforms relative to the steel frame beam 2, the accordion-shaped folding steel plates 3 between the beam columns straighten to absorb deformation energy, joints of the beam columns are prevented from being damaged and collapse, and reliability and stability of the structure are improved.
It should be understood that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention is described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: modifications and equivalents may be made to the embodiments of the invention without departing from the spirit and scope of the invention, which is intended to be covered by the claims.
Claims (7)
1. The utility model provides an anti steel construction combination node that collapses in succession, includes steel frame post (1), its characterized in that: the outer side of the steel frame column (1) is fixedly connected with a steel frame beam (2); two ends of the accordion-shaped folding steel plate (3) are fixedly connected with a first backing plate (4) and a second backing plate (7) respectively, the first backing plate (4) is fixed on the steel frame column (1) through a first high-strength bolt (6), and the second backing plate (7) is fixed on the steel frame beam (2) through a second high-strength bolt (8).
2. The progressive collapse resistant steel structure combination node of claim 1, wherein: a plurality of stiffening ribs (5) are arranged between the connecting points of the steel frame columns (1) and the steel frame beams (2) and the connecting points of the base plates (4).
3. The progressive collapse resistant steel structure combination node of claim 2, wherein: the stiffening ribs (5) are welded with the steel frame columns (1) and the steel frame beams (2) into a whole.
4. The progressive collapse resistant steel structure combination node of claim 1, wherein: the outer side of the steel frame column (1) is welded with the steel frame beam (2) into a whole.
5. The progressive collapse resistant steel structure combination node of claim 1, wherein: the two ends of the accordion-shaped folding steel plate (3) are respectively welded with the first backing plate (4) and the second backing plate (7) into a whole.
6. The progressive collapse resistant steel structure combination node of claim 1, wherein: the strength of the first high-strength bolt (6) and the strength of the second high-strength bolt (8) are 8.8 or 10.9 grades.
7. A progressive collapse resistant steel structure composite node according to claim 1 or 2, wherein: the steel used by the steel frame column (1), the steel frame beam (2), the accordion-shaped folding steel plate (3), the backing plate (4) and the stiffening rib (5) comprises Q235 steel, Q345 steel, Q390 steel or Q420 steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021005862.0U CN212506747U (en) | 2020-06-04 | 2020-06-04 | Steel structure combination node of anti progressive collapse |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021005862.0U CN212506747U (en) | 2020-06-04 | 2020-06-04 | Steel structure combination node of anti progressive collapse |
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| CN212506747U true CN212506747U (en) | 2021-02-09 |
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| CN202021005862.0U Active CN212506747U (en) | 2020-06-04 | 2020-06-04 | Steel structure combination node of anti progressive collapse |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113338441A (en) * | 2021-07-15 | 2021-09-03 | 西安建筑科技大学 | Structure for improving anti-collapse capability of beam column node |
| CN113756435A (en) * | 2021-09-07 | 2021-12-07 | 福建省建筑科学研究院有限责任公司 | Node for improving continuous collapse resistance of frame |
| CN113775053A (en) * | 2021-09-27 | 2021-12-10 | 青岛新华友建工集团股份有限公司 | Large-span prestressed concrete frame beam hinge joint node structure |
-
2020
- 2020-06-04 CN CN202021005862.0U patent/CN212506747U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113338441A (en) * | 2021-07-15 | 2021-09-03 | 西安建筑科技大学 | Structure for improving anti-collapse capability of beam column node |
| CN113756435A (en) * | 2021-09-07 | 2021-12-07 | 福建省建筑科学研究院有限责任公司 | Node for improving continuous collapse resistance of frame |
| CN113775053A (en) * | 2021-09-27 | 2021-12-10 | 青岛新华友建工集团股份有限公司 | Large-span prestressed concrete frame beam hinge joint node structure |
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