CN205134979U - Rectangular concrete -filled steel tubular column (CFST) post and anti reinforcement node that collapses in succession of girder steel - Google Patents
Rectangular concrete -filled steel tubular column (CFST) post and anti reinforcement node that collapses in succession of girder steel Download PDFInfo
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- CN205134979U CN205134979U CN201520861441.0U CN201520861441U CN205134979U CN 205134979 U CN205134979 U CN 205134979U CN 201520861441 U CN201520861441 U CN 201520861441U CN 205134979 U CN205134979 U CN 205134979U
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Abstract
The utility model discloses a rectangular concrete -filled steel tubular column (CFST) post and anti reinforcement node that collapses in succession of girder steel, it includes rectangle steel core concrete column, I shaped steel roof beam and reinforced structure, the lower flange beading is on rectangle steel pipe column wall on the I shaped steel roof beam, and steel beam web plate passes through first angle steel fixed connection with rectangle steel pipe column wall, sets up the reinforced structure in I shaped steel roof beam lower flange and support connnection department, and the reinforced structure passes through the second angle steel and centers on rectangle steel pipe column wall fixed connection with girder steel lower flange and rectangle steel pipe column wall fixed connection, second angle steel by U shaped steel layering. The utility model discloses an angle steel and U shaped steel layering have increased the drawknot power of adjacent roof beam lower flange, have strengthened the anti bucking ability of lower flange department steel pipe column wall simultaneously, and when taking place to collapse in succession, the girder steel lower flange is drawn, for the roof beam lower flange with provide extra biography power route being connected of post, has improved the ductility of node and has resisted the ability of collapsing in succession.
Description
Technical field
The utility model belongs to construction engineering technical field, is specifically related to a kind of rectangular steel-tube concrete column and girder steel reinforcing joint for resisting continuous collapse.
Background technology
Along with the quickening day by day of urbanization paces, the contradiction in building land and agricultural land highlights day by day, and China is populous nation, per capita area of cultivated farmland is not as good as 1/3 of world's average line, national Eleventh Five-Year Plan science and technology supporting project supports the R&D work of Energy-Saving andLand-Saving building accordingly, greatly develop high level and super highrise building, to alleviate the in short supply and ever-increasing contradiction of building area demand of land used.
Steel work compared with other materials, have intensity high, from heavy and light, plasticity and good toughness, easy construction, bear the advantages such as dynamic load performance is good.In economically developed country, not only Longspan Bridge and building, highrise building all adopt steel work or steel-mixed combining structure substantially.Not only be applied to business and public building at China's steel work, equally started for house.While steel work fast development, these nigh-level synthesis, once the structure partial occurring to cause because of loss of function collapses or total Collapse, will cause huge economic loss and serious casualties, bring negative effect difficult to the appraisal to society.
In opposing Progressive Collapse, the node of structural system plays vital effect.When supporting member vertical in structure lost efficacy, failpoint will produce very large vertical displacement, structure must bear vertical load by " catenary action " of node and girder steel composition, now above exhaustion column, node will bear the acting in conjunction of positive bending moment and pulling force, and node often causes welding seam breaking or bolt abruption and brittle fracture occurs due to bottom flange tension.The reinforcing design major part of current node is for seismic load, and the joint reinforcing for progressive collapse-resisting designs based on the node of U.S. four sides welding steel and in methods such as haunch place ribbings, but its complicated operation, construct loaded down with trivial details, cost is higher.
Summary of the invention
For above-mentioned the deficiencies in the prior art, the purpose of this utility model is to provide a kind of rectangular steel-tube concrete column and girder steel reinforcing joint for resisting continuous collapse.
The technical scheme realizing above-mentioned purpose is:
A kind of rectangular steel-tube concrete column and girder steel reinforcing joint for resisting continuous collapse, it comprises rectangular steel-tube concrete column, i-shape steel beam and ruggedized construction; On i-shape steel beam, bottom flange is directly welded on rectangular steel pipe post jamb, steel beam web plate is fixedly connected with by the first angle steel with rectangular steel pipe post jamb, in i-shape steel beam bottom flange and post junction, ruggedized construction is set, girder steel bottom flange is fixedly connected with rectangular steel pipe post jamb by the second angle steel by ruggedized construction, and the second angle steel is fixedly connected with around rectangular steel pipe post jamb by U-shaped steel press strip.
Described rectangular steel-tube concrete column and girder steel reinforcing joint for resisting continuous collapse, wherein, the first angle steel adopt fillet weld seam with rectangular steel pipe post jamb, another side and steel beam web plate are fixed by the first high-strength bolt.
Described rectangular steel-tube concrete column and girder steel reinforcing joint for resisting continuous collapse, wherein, the second angle steel adopt fillet weld seam with rectangular steel pipe post jamb and U-shaped steel press strip, another side and girder steel bottom flange are fixed by the second high-strength bolt.
Described rectangular steel-tube concrete column and girder steel reinforcing joint for resisting continuous collapse, wherein, U-shaped steel press strip is two, is symmetrical arranged and adopts slot weld and fillet weld seam to be connected with steel pipe post jamb.
Described rectangular steel-tube concrete column and girder steel reinforcing joint for resisting continuous collapse, wherein, the second angle steel and high-strength bolt junction, girder steel bottom flange have Long Circle bolt hole.
Compared with prior art, the utility model tool has the following advantages:
1, the utility model adds the draw knot force of adjacent beams bottom flange by angle steel and U-shaped steel press strip, enhance the anti-flexion capabilities of bottom flange place steel pipe post jamb simultaneously, for the connection of girder steel bottom flange and post provides extra Path of Force Transfer, improve the ductility of node and the ability of opposing continuous collapse;
2, the Long Circle bolt hole that the second described high-strength bolt can be offered by the second angle steel and high-strength bolt junction, girder steel bottom flange when there is continuous collapse, there is certain frictional slip, impact energy is consumed by the frictional force produced, the dynamic effect produced when steel core concrete column destroys can be reduced, prevent the Progressive Collapse causing structure because of destruction of a node;
When 3, there is continuous collapse, after steel I-beam bottom flange is welded with steel pipe post jamb and is destroyed, second angle steel is connected with the second high-strength bolt of steel I-beam bottom flange and enters the catenary stage by becoming structure and continue stressed second defence line, and the safety of structure significantly improves.
Accompanying drawing explanation
Fig. 1 is the structural representation of front view of the present utility model.
Fig. 2 is the 1-1 sectional drawing of the utility model Fig. 1.
Fig. 3 is the structural representation of ruggedized construction in the utility model.
In figure: 1 is rectangular steel-tube concrete column, 2 is i-shape steel beam, and 3 is the first angle steel, and 4 is the first high-strength bolt, and 5 is U-shaped steel press strip, and 6 is the second angle steel, and 7 is the second high-strength bolt, and 8 is Long Circle bolt hole.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail:
As shown in Figure 1 and Figure 2, the utility model is a kind of rectangular steel-tube concrete column and girder steel reinforcing joint for resisting continuous collapse, and it comprises rectangular steel-tube concrete column 1, i-shape steel beam 2 and ruggedized construction; On i-shape steel beam 2, bottom flange is directly welded on rectangular steel pipe post jamb, girder steel 2 web is fixedly connected with by the first angle steel 3 first high-strength bolt 4 with rectangular steel pipe post jamb, the another side of the first angle steel 3 is welded on rectangular steel pipe post jamb, in i-shape steel beam 2 bottom flange and steel pipe post jamb junction, ruggedized construction is set, girder steel bottom flange is fixedly connected with rectangular steel pipe post jamb by the second angle steel 6 by ruggedized construction, and the second angle steel 6 is fixedly connected with around rectangular steel pipe post jamb by U-shaped steel press strip 7.
Further, second angle steel 6 while adopt fillet weld seam with rectangular steel pipe post jamb and U-shaped steel press strip 5, another side and i-shape steel beam 2 bottom flange are fixed by the second high-strength bolt 7, and U-shaped steel press strip 5 is two, is symmetrical arranged and adopts slot weld and fillet weld seam to be connected with steel pipe post jamb.
Further, the second angle steel 6 adopts Long Circle bolt hole 8 with high-strength bolt 7 junction, i-shape steel beam 2 bottom flange second.
During construction:
1, the second angle steel in ruggedized construction and U-shaped steel press strip are all prefabricated in the factory and weld together formation ruggedized construction, connect on relevant position offer Long Circle bolt hole at the second angle steel bolt;
2, for reinforcing built construction, time, need on-the-spot location in steel I-beam bottom flange to offer Long Circle bolt hole, by the second high-strength bolt, angle steel and steel I-beam bottom flange are linked together, also need scene U-shaped steel press strip and steel pipe post jamb to be welded together;
3 for new building, complete location, steel I-beam bottom flange in factory and offer Long Circle bolt hole and by the work of U-shaped steel press strip together with steel pipe post jamb positioning welding, only need high-strength bolt be adopted to link together, without the need to Site Welding steel I-beam bottom flange and the second angle steel at the scene.
Certainly above explanation is only preferred embodiment of the present utility model, the utility model is not limited to enumerate above-described embodiment, it should be noted that, under the instruction of this manual, those skilled in the art can also make such or such easy variation pattern, such as equivalent way, or obvious mode of texturing.Above-mentioned variation pattern all should within protection domain of the present utility model.
Claims (5)
1. a rectangular steel-tube concrete column and girder steel reinforcing joint for resisting continuous collapse, comprise rectangular steel-tube concrete column, i-shape steel beam and ruggedized construction, it is characterized in that: on i-shape steel beam, bottom flange is directly welded on rectangular steel pipe post jamb, steel beam web plate is fixedly connected with by the first angle steel with rectangular steel pipe post jamb, in i-shape steel beam bottom flange and post junction, ruggedized construction is set, girder steel bottom flange is fixedly connected with rectangular steel pipe post jamb by the second angle steel by ruggedized construction, and the second angle steel is fixedly connected with around rectangular steel pipe post jamb by U-shaped steel press strip.
2. rectangular steel-tube concrete column as claimed in claim 1 and girder steel reinforcing joint for resisting continuous collapse, is characterized in that: the first described angle steel adopt fillet weld seam with rectangular steel pipe post jamb, another side and steel beam web plate are fixed by the first high-strength bolt.
3. rectangular steel-tube concrete column as claimed in claim 1 and girder steel reinforcing joint for resisting continuous collapse, it is characterized in that: the second described angle steel adopt fillet weld seam with rectangular steel pipe post jamb and U-shaped steel press strip, another side and girder steel bottom flange are fixed by the second high-strength bolt.
4. rectangular steel-tube concrete column as claimed in claim 1 and girder steel reinforcing joint for resisting continuous collapse, is characterized in that: described U-shaped steel press strip is two, be symmetrical arranged and adopt slot weld and fillet weld seam to be connected with steel pipe post jamb.
5. rectangular steel-tube concrete column as claimed in claim 3 and girder steel reinforcing joint for resisting continuous collapse, is characterized in that: the second described angle steel and high-strength bolt junction, girder steel bottom flange adopt Long Circle bolt hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520861441.0U CN205134979U (en) | 2015-11-02 | 2015-11-02 | Rectangular concrete -filled steel tubular column (CFST) post and anti reinforcement node that collapses in succession of girder steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520861441.0U CN205134979U (en) | 2015-11-02 | 2015-11-02 | Rectangular concrete -filled steel tubular column (CFST) post and anti reinforcement node that collapses in succession of girder steel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205134979U true CN205134979U (en) | 2016-04-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520861441.0U Expired - Fee Related CN205134979U (en) | 2015-11-02 | 2015-11-02 | Rectangular concrete -filled steel tubular column (CFST) post and anti reinforcement node that collapses in succession of girder steel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205134979U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109457818A (en) * | 2018-12-19 | 2019-03-12 | 石家庄铁道大学 | A kind of assembled rectangular steel-tube concrete column-reinforced node of girder steel |
| CN109594789A (en) * | 2018-12-11 | 2019-04-09 | 西安理工大学 | A kind of the joint reinforcing device and reinforcement means of recoverable function |
| CN110777936A (en) * | 2019-11-22 | 2020-02-11 | 东华理工大学 | Connecting structure and mounting method of box steel column and unequal-height I-shaped steel beam |
-
2015
- 2015-11-02 CN CN201520861441.0U patent/CN205134979U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109594789A (en) * | 2018-12-11 | 2019-04-09 | 西安理工大学 | A kind of the joint reinforcing device and reinforcement means of recoverable function |
| CN109594789B (en) * | 2018-12-11 | 2021-04-06 | 西安理工大学 | Node reinforcing device and reinforcing method capable of restoring function |
| CN109457818A (en) * | 2018-12-19 | 2019-03-12 | 石家庄铁道大学 | A kind of assembled rectangular steel-tube concrete column-reinforced node of girder steel |
| CN110777936A (en) * | 2019-11-22 | 2020-02-11 | 东华理工大学 | Connecting structure and mounting method of box steel column and unequal-height I-shaped steel beam |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160406 Termination date: 20161102 |
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| CF01 | Termination of patent right due to non-payment of annual fee |