CN211285977U - Tapered weakening beam column joint for high-strength steel beam flange - Google Patents
Tapered weakening beam column joint for high-strength steel beam flange Download PDFInfo
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- CN211285977U CN211285977U CN201921735173.2U CN201921735173U CN211285977U CN 211285977 U CN211285977 U CN 211285977U CN 201921735173 U CN201921735173 U CN 201921735173U CN 211285977 U CN211285977 U CN 211285977U
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- shaped steel
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- column
- lower flange
- shear plate
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Abstract
The utility model discloses a type beam column node is cut down to high-strength steel beam edge of a wing toper, including I shaped steel post, the lateral wall welding of I shaped steel post has a shear plate, is fixed with I shaped steel beam on the shear plate, and I shaped steel beam includes parallel arrangement's upper limb listrium and lower flange listrium from top to bottom, and the vertical fixation has a web between upper limb listrium and the lower flange listrium, and upper limb listrium and lower flange listrium middle part are the toper, form local toper and weaken. The steel structure installation mode of welding in a factory and quickly installing in place on a construction site improves the construction efficiency and is simple and convenient to operate; local conical weakening of upper and lower flanges of the beam is adopted at a certain position, away from the beam end, of the I-shaped steel beam, so that the plastic hinge moves outwards to effectively protect a welding seam of a cylindrical surface of the beam end, and the area of a plastic yield area can be greatly expanded, thereby improving the plastic deformation capacity and the energy consumption capacity of the node.
Description
Technical Field
The utility model belongs to the technical field of building engineering steel structure system's high ductility beam column node, concretely relates to type beam column node is weakened in high-strength steel beam edge of a wing toper.
Background
In recent years, with the improvement of steel production technology and the maturity of corresponding welding materials and connection technology, novel high-strength steel is successfully applied to a plurality of buildings worldwide, and good social and economic benefits are obtained.
The application of the high-strength steel is mainly concentrated in major infrastructure projects such as super high-rise structures, large-span stadiums, large-span bridges and the like, a large number of heavy projects and landmark buildings are built, and a wide space is provided for the application and popularization of the high-strength steel in the projects. In fact, in steel-structured buildings the connecting joints play a very important role in the structure; under the normal use state, the frame beam and the frame column are connected into a whole by the nodes to form a structure, and the external effects such as gravity, wind load and the like are effectively born; under the action of strong shock, the plastic deformation of the end part and the node area of the beam can absorb and dissipate the seismic energy, so that the whole structure does not collapse or overturn. The traditional bolted welding node has poor plastic deformation capability and energy consumption performance under the action of earthquake load, and is very easy to generate brittle failure. In order to improve the plastic deformation capacity and ductility of the node, the traditional method is to perform dog-bone weakening on the beam flange so as to improve the plastic deformation capacity of the node and improve the seismic performance of the node. However, the traditional dog-bone type weakening node concentrates on the fixed position of the section for weakening the beam flange, the plasticity can only be generated in a small range, and the yield area is limited.
Based on this, a high-strength steel beam flange toper weakened type node is proposed herein. The node form weakens the flange of the beam gradually according to the characteristic that the bending moment of the beam end is gradually reduced, so that the section weakening section can synchronously enter the plasticity, the plastic yield area of the flange area is enlarged, a preset damage yield area can be formed at the beam end, and a better plastic energy consumption effect can be obtained, so that the node has good plastic deformation capacity and stable hysteresis energy consumption performance, and the defects that the node is difficult to realize ductile deformation and is easy to generate brittle fracture are fundamentally solved.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a type beam column node is weakened in high-strength steel beam edge of a wing toper has solved among the prior art the poor and not enough technical problem of ductility of node plastic deformation ability.
The utility model adopts the technical proposal that: the utility model provides a type beam column node is cut down to high-strength steel beam edge of a wing toper, includes I shaped steel post, and the lateral wall welding of I shaped steel post has a shear plate, is fixed with the I shaped steel roof beam on the shear plate, and the I shaped steel roof beam includes upper limb flange board and the lower flange board of parallel arrangement from top to bottom, and the vertical fixation has a web between upper limb flange board and the lower flange board, and upper limb flange board and lower flange board middle part are the toper, form local toper and weaken.
The utility model is also characterized in that,
the shear plate is provided with bolt holes, the web plate of the I-shaped steel beam is provided with bolt through holes matched with the bolt holes, the I-shaped steel beam is fixedly connected with the shear plate through high-strength friction type bolts, and the high-strength friction type bolts penetrate through the bolt holes of the shear plate and the bolt through holes in the web plate of the I-shaped steel beam to fix the I-shaped steel beam and the shear plate.
The upper flange plate and the lower flange plate of the I-shaped steel beam are connected with the web plate through full penetration welding.
The I-shaped steel column comprises an upper flange and a lower flange which are symmetrically and parallelly arranged, a web plate is vertically fixed between the upper flange and the lower flange, and the upper flange and the lower flange are connected with the web plate through welding.
The upper flange and the lower flange of the I-shaped steel column are fixedly connected with the shear plate through welding;
and transverse stiffening ribs are also arranged in the I-shaped steel columns.
The I-shaped steel column, the I-shaped steel beam, the transverse stiffening rib and the shear plate are all Q690 steel.
The utility model has the advantages as follows:
1. the utility model discloses a type beam column node is reduced to high-strength steel beam edge of a wing toper weakens at the I-shaped steel beam apart from the local toper in the edge of a wing about the roof beam of a beam department of a beam-ends certain position, makes the plastic hinge move outward the welding seam of protection beam-ends cylinder effectively to can expand the area in plasticity yield district greatly, thereby improve the plastic deformation ability and the power consumption ability of node.
2. Utility model fine solution the rigidity node be difficult to realize ductile deformation, take place brittle fracture's defect easily.
3. The utility model discloses the node simple structure, convenient operation, it is respond well, easily use widely.
Drawings
Fig. 1 is a schematic structural view of a tapered weakened beam-column joint of a high-strength steel beam flange;
fig. 2 is a front view of the high-strength steel beam flange tapered weakening section beam column joint of the utility model;
fig. 3 is a top view of the high-strength steel beam flange tapered weakening section beam column joint of the present invention;
fig. 4 is the utility model relates to a type beam column node orthographic view split map is cut to high strength steel beam edge of a wing toper.
In the figure, 1, an I-shaped steel column, 2, an I-shaped steel beam, 3, a transverse stiffening rib, 4, a shear plate, 5, a high-strength friction type bolt and 6, a bolt hole are arranged.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
The utility model relates to a shaped beam column node is cut to high-strength steel beam edge of a wing toper, the structure is as shown in figure 1, a shaped beam column node is cut to high-strength steel beam edge of a wing toper, including I shaped steel post 1, I shaped steel post 1's lateral wall welding has a shear plate 4, is fixed with I shaped steel roof beam 2 on shear plate 4, and I shaped steel roof beam 2 includes upper flange board and lower flange board of upper and lower parallel arrangement, the vertical fixation has a web between upper flange board and the lower flange board, and upper flange board and lower flange board middle part are the toper, form local toper and weaken (as shown in figure 4).
As shown in fig. 2, the shear plate 4 is provided with bolt holes 6, the web of the i-shaped steel beam 2 is provided with bolt through holes corresponding to the bolt holes 6, the i-shaped steel beam 2 and the shear plate 4 are fixedly connected through high-strength friction bolts 5 (as shown in fig. 3), and the high-strength friction bolts 5 pass through the bolt holes 6 of the shear plate 4 and the bolt through holes in the web of the i-shaped steel beam 2 to fix the i-shaped steel beam 2 and the shear plate 4.
The upper flange plate and the lower flange plate of the I-shaped steel beam 2 are connected with the web plate through full penetration welding.
The I-shaped steel column 1 comprises an upper flange and a lower flange which are symmetrically and parallelly arranged, a web plate is vertically fixed between the upper flange and the lower flange, and the upper flange and the lower flange are connected with the web plate through welding.
The upper flange and the lower flange of the I-shaped steel column 1 are fixedly connected with the shear plate 4 through welding;
and a transverse stiffening rib 3 is also arranged in the I-shaped steel column 1.
The I-shaped steel column 1, the I-shaped steel beam 2, the transverse stiffening rib 3 and the shear plate 4 are all made of Q690 steel.
The utility model discloses I-shaped steel roof beam 2's top flange board and bottom flange board middle part are the toper, form local toper and weaken. The plastic hinge moves outwards, brittle failure of welding joints between beam columns caused by stress development of the beam root is avoided, the anti-seismic requirement of a strong node weak member can be met, the plastic hinge area can be greatly expanded after the upper flange and the lower flange of the steel beam are weakened through the taper, and therefore under the action of large earthquake, the node form has enough ductility to meet the deformation and energy consumption requirements of the node. Will the utility model discloses in introducing high strength steel structural system, when improving structural deformation and power consumption ability, avoided traditional welded joint's brittle fracture problem.
The assembly method of the tapered weakening beam-column joint of the high-strength steel beam flange comprises the following steps:
and 5, connecting the web plate of the I-shaped steel beam 2 with the shear plate 4 through a high-strength friction bolt 5 on a construction site.
The utility model discloses at a novel prefabricated beam column node entirely, whole weldment work of node is accomplished at the mill, and the scene only needs to utilize the bolt to splice the node together. On the premise of ensuring the quality of the welding seam, the construction efficiency is improved.
Claims (7)
1. The utility model provides a type beam column node is weakened in high-strength steel beam edge of a wing toper which characterized in that: the steel column comprises an I-shaped steel column (1), a shear plate (4) is welded on the side wall of the I-shaped steel column (1), an I-shaped steel beam (2) is fixed on the shear plate (4), the I-shaped steel beam (2) comprises an upper flange plate and a lower flange plate which are arranged in parallel from top to bottom, a web plate is vertically fixed between the upper flange plate and the lower flange plate, and the middle parts of the upper flange plate and the lower flange plate are conical to weaken the local conical shape.
2. The tapered beam-column joint of claim 1, wherein: open on shear plate (4) and have bolt hole (6), seted up on the web of I shaped steel roof beam (2) with the bolt through-hole that bolt hole (6) suited, I shaped steel roof beam (2) pass through high strength friction type bolt (5) fixed connection with shear plate (4), bolt through-hole on high strength friction type bolt (5) passed shear plate (4) bolt hole (6), I shaped steel roof beam (2) web is fixed I shaped steel roof beam (2) and shear plate (4) mutually.
3. The tapered beam-column joint of claim 1, wherein: the upper flange plate and the lower flange plate of the I-shaped steel beam (2) are connected with the web plate through full penetration welding.
4. The tapered beam-column joint of claim 1, wherein: the I-shaped steel column (1) comprises an upper flange and a lower flange which are symmetrically and parallelly arranged, a web plate is vertically fixed between the upper flange and the lower flange, and the upper flange and the web plate are connected through welding.
5. The tapered beam-column joint of claim 4, wherein: and the upper flange and the lower flange of the I-shaped steel column (1) are fixedly connected with the shear plate (4) by welding.
6. The tapered beam-column joint of claim 1, wherein: and a transverse stiffening rib (3) is further arranged in the I-shaped steel column (1).
7. The tapered beam-column joint of claim 1, wherein: the I-shaped steel column (1), the I-shaped steel beam (2), the transverse stiffening rib (3) and the shear plate (4) are all Q690 steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921735173.2U CN211285977U (en) | 2019-10-16 | 2019-10-16 | Tapered weakening beam column joint for high-strength steel beam flange |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921735173.2U CN211285977U (en) | 2019-10-16 | 2019-10-16 | Tapered weakening beam column joint for high-strength steel beam flange |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211285977U true CN211285977U (en) | 2020-08-18 |
Family
ID=72021895
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921735173.2U Expired - Fee Related CN211285977U (en) | 2019-10-16 | 2019-10-16 | Tapered weakening beam column joint for high-strength steel beam flange |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211285977U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111945900A (en) * | 2020-08-25 | 2020-11-17 | 长安大学 | Dog bone-honeycomb formula combination flat beam connected node |
| CN112161013A (en) * | 2020-09-16 | 2021-01-01 | 太原理工大学 | Creeping expansion ring type energy dissipation and shock absorption device |
-
2019
- 2019-10-16 CN CN201921735173.2U patent/CN211285977U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111945900A (en) * | 2020-08-25 | 2020-11-17 | 长安大学 | Dog bone-honeycomb formula combination flat beam connected node |
| CN112161013A (en) * | 2020-09-16 | 2021-01-01 | 太原理工大学 | Creeping expansion ring type energy dissipation and shock absorption device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200818 Termination date: 20211016 |