CN104863267B - A kind of beam column reinforced node of beam end edge of a wing Varying-thickness - Google Patents
A kind of beam column reinforced node of beam end edge of a wing Varying-thickness Download PDFInfo
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- CN104863267B CN104863267B CN201510202432.5A CN201510202432A CN104863267B CN 104863267 B CN104863267 B CN 104863267B CN 201510202432 A CN201510202432 A CN 201510202432A CN 104863267 B CN104863267 B CN 104863267B
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Abstract
The invention discloses a kind of reinforced nodes of beam column of beam end edge of a wing Varying-thickness.The reinforced node makees the beam on the edge of a wing by longitudinal variable cross-section steel plates and stud welding is formed by connecting.This node is calculated by design using flange of beam Varying-thickness in certain area at node according to stress form and selects the reasonable thickness change gradient, guaranteed the intensity, rigidity and energy dissipation capacity of node.When installation, high-strength bolt is used as positioning bolt to be connected to web on the shear plate on the column edge of a wing first, and beam longitudinal variable-thickness edge of a wing full penetration single groove is welded in the column edge of a wing, after flange of beam and the column edge of a wing weld, then tightens high-strength bolt, completes whole installation processes.The node that the present invention uses, the edge of a wing is integrated with cover board realization is reinforced, and avoids the influence of stress raisers and welding generation, it is simple to process installation steps, stock utilization is high, and construction cost is low, both intensity, the rigidity of node can guarantee, and energy dissipation capacity is strong, can be used for the area that provides fortification against earthquakes.
Description
Technical field
It is rigidly connected more specifically to beam column the present invention relates to the technical field of steel building beam-to-column joint
A kind of novel reinforced node, more particularly to a kind of reinforced node of novel beam column of beam end edge of a wing Varying-thickness.
Technical background
Frame structure is structural system common in steel building, for realization " strong column and weak beam, the strong weak component of node "
Design philosophy avoids occurring the brittle break of bean column node under severe earthquake action, at present through coming frequently with the reinforced node of cover board
Improve the anti-seismic performance of node.But this reinforced node connection of cover-plate type comes with some shortcomings, cover board length connects beam column
The intensity that connects, rigidity, the influence of ductility are smaller, and still, when cover board length is too small, abrupt changes in thickness be easy to cause patch ends
Stress is concentrated, unfavorable to the stress of beam-to-column joint；As length increases, steel are not only wasted, but also cover board is led with edge of a wing welding
The increase of the pyrogenicity zone of influence and increasing for welding defect keep node stress complicated, generate more adverse effects to node.Cause
This, needs to invent a kind of new reinforced node of beam column, eliminates cover board length and welding bring adverse effect, both can guarantee section
Point performance, and can guarantee that processing and fabricating installation is simple, improve stock utilization.
Summary of the invention
The purpose of the present invention is in view of the above shortcomings, provide a kind of novel beam column of beam end edge of a wing Varying-thickness to add
Strong type node eliminates cover board length and welding bring adverse effect.This node is made using longitudinal variable cross-section steel plates (LP steel plate)
Node is reinforced without secondary operation welded cover plate according to stress condition design thickness changing slope at node for the edge of a wing.The edge of a wing with
Reinforce cover board and realize integration, avoids stress raisers and welding has an impact.The beam end edge of a wing provided by the invention becomes
The reinforced node of thickness, processing installation steps are simple, and stock utilization is high, and construction cost is low, both can guarantee node intensity,
Rigidity, and energy dissipation capacity is strong, can be used for the area that provides fortification against earthquakes.
The reinforced node of beam column of beam end edge of a wing Varying-thickness adopts the following technical solutions to achieve:
The reinforced node of beam column of beam end edge of a wing Varying-thickness makees the beam on the edge of a wing by longitudinal variable cross-section steel plates and stud welding connects
It connects.The beam longitudinal variable cross-section edge of a wing is made of longitudinal variable cross-section steel plates, is become according to stress condition design thickness at node
Change the gradient, reinforces node without secondary operation welded cover plate, the edge of a wing is integrated with cover board realization is reinforced, and avoids local stress collection
Neutralize the influence that welding generates.
The present invention can form the reinforced node according to two methods according to the demand of designer, and one is according to node
Stress condition, using flange of beam Varying-thickness in certain area at node, the methods of other region flange of beam equal thickness is formed；Separately
One is according to frame beam stress, make the edge of a wing (web can also be made) design longitudinal variable cross-section beam with longitudinal variable cross-section steel plates, according to
Stress can self-assembling formation beam end edge of a wing Varying-thickness the reinforced node of beam column.
The longitudinal variable cross-section steel plates are to change longitudinal thickness by continuously changing the opening degree of roll in the operation of rolling,
It can be customized to different shapes, including different-thickness as needed, different-thickness changing slope, different Varying-thickness segment length, and
It is required that every mechanical property of the steel plate meet at the regulation and different-thickness of related specifications mechanical property variation difference compared with
It is small.
Web is connected to using high-strength bolt as positioning bolt by the reinforced node of the beam column during installation
On the shear plate on the column edge of a wing, beam longitudinal variable-thickness edge of a wing full penetration single groove is welded in the column edge of a wing, to flange of beam and column
After the edge of a wing welds, then high-strength bolt is tightened, completes whole installation processes.
After the reinforced node of beam column of beam end edge of a wing Varying-thickness, fabrication and installation step greatly reduces, and reduces peace
This is dressed up, and improves stock utilization, reduces steel requirement.In addition, reinforcing node by using the Varying-thickness edge of a wing, make
The bending resistance of node is higher than node, guarantees node strength and rigidity, also to make to make in the beam at the equal thickness edge of a wing in earthquake
Plastic hinge is formed prior to node under, guarantees the elastic state at beam-to-column joint, improves ductility of joint, enhancing node energy consumption
Ability.The installation of the reinforced node of beam column of beam end edge of a wing Varying-thickness is fixed without being welded with cover board on flange of beam, both reduces
The increased costs convenience of installation, but stress will not be caused to concentrate, welding heat affected zone increases and welding defect increases and
Influence the stress performance of flange of beam at node.The longitudinal thickness-variable steel plate used in node of the present invention passes through company during the rolling process
Continuing the opening degree of change roll to change longitudinal thickness, Anshan iron and steel plant factory can produce this type steel plate, though the expense of processing
It can have increased slightly, but synthetic assembly, transport, the general expenses for reinforcing cover board and reduction is saved, and use such node shape
Formula and the raising for making joint behavior, and comprehensive benefit is greatly improved, it is provided favorably for its large-scale application
Condition.
Detailed description of the invention
Figure 1A to 1C is the reinforced node schematic diagram of beam column of various forms of beam end edges of a wing Varying-thickness, describes I respectively
Type node, II type node, III type node.
Fig. 2A and 2B is that a kind of specific embodiment according to the present invention adds for the beam column of I type beam end edge of a wing Varying-thickness
The connection description detail drawing of strong type node.
Fig. 3 is the schematic shapes of longitudinal variable cross-section steel plates used by a kind of specific embodiment according to the present invention.
Specific implementation method
The present invention will be further explained below with reference to the attached drawings and specific examples.
As shown in Figure 1A, 1B, 1C, the present invention proposes that the beam column of the beam end edge of a wing Varying-thickness of following three kinds of forms is reinforced
Node.I type node (Figure 1A): the inclination of the top flange upper surface 3a, lower surface are horizontal, and the lower flange upper surface 3a ' is horizontal, lower surface is inclined
Tiltedly；II type node (Figure 1B): the top flange upper surface 3b is horizontal, lower surface tilts, the inclination of the lower flange upper surface 3b ', lower surface water
It is flat；III type node (Fig. 1 C): the top flange upper surface 3c is horizontal, lower surface tilts, and the lower flange upper surface 3c ' is horizontal, lower surface is inclined
Tiltedly.I type node web height is constant, and without reprocessing, but top flange upper surface has the gradient that can install production to flooring profiled sheet
Life brings inconvenience；II, III type node Varying-thickness section web height changes, and needs to process again, but top flange surface is horizontal, convenient
Roof boarding installation, designer can independently select as needed.
As shown in Figure 2 A and 2B, in a specific embodiment, the beam for the beam end edge of a wing Varying-thickness that the present invention uses
The reinforced node of column includes the i shaped cross section column edge of a wing 1, column web 2, the I-shaped cross-section beam longitudinal variable-thickness edge of a wing 3, web
4, column adds shin rib 5, composition backing 6, column edge of a wing shear plate 7.Column adds shin rib 5 and the column edge of a wing 1 and web 2 to be welded to connect, and beam is longitudinal
3 full penetration single groove of the Varying-thickness edge of a wing is welded in the column edge of a wing 1, and web 4 is bolted to the shearing on the column edge of a wing 1 with high-strength bolt
Plate 7.Variable-thickness steel plate and the butt welding of equal thickness steel plate can be used in the I-shaped cross-section beam longitudinal variable-thickness edge of a wing 3, as shown in figure 3, packet
Varying-thickness section 31 and equal thickness section 32 are included, 33 indicate butt weld in figure；It can also be according to Vierendeel girder force design longitudinal variable cross-section
Beam, customization monolith longitudinal variable cross-section steel plates can be determined as the edge of a wing (can also make web), shape according to specific stress.
In specific implementation process: completing beam, column element precast in precast plant, node installation is completed in construction site.In installation,
On the shear plate 7 that high-strength bolt is used as positioning bolt that web 4 is connected on the column edge of a wing 1 first, to flange of beam 3 and the column edge of a wing
After 1 welds, then high-strength bolt is tightened, completes whole installation processes.The improved joint strengthening method of the present invention is cut using longitudinal become
Face flange of beam replaces reinforcing cover board and flange of beam welds, and simplifies processing installation steps, can save material and node
Performance.
Specific description has been carried out for some preferred embodiments in the above specification, and has been mentioned for illustration purpose
Supplied some technical details, however those skilled in the art should be understood that the present invention can have various variations and
More different embodiments, and details described herein can have comparable variation without departing from spirit of the invention
And purport, so that the application range claimed should belong to.
Claims (4)
1. a kind of reinforced node of beam column of beam end edge of a wing Varying-thickness has beam and stud welding by the longitudinal variable-thickness edge of a wing
The structure of connection, and including the i shaped cross section column edge of a wing, column web, the I-shaped cross-section beam longitudinal variable-thickness edge of a wing, web,
Column ribbed stiffener, composition backing and column edge of a wing shear plate, wherein the column ribbed stiffener and the column edge of a wing and with the column web
It is welded to connect, beam longitudinal variable-thickness edge of a wing full penetration single groove is welded in the column edge of a wing, and the web is with high-strength
Bolted-on is in column edge of a wing shear plate；
Wherein, the beam longitudinal variable-thickness edge of a wing includes top flange and lower flange, and the reinforced node of the beam column can have
There are three types of forms: the upper surface inclination of the top flange, lower surface are horizontal, and the upper surface of the lower flange is horizontal, lower surface is inclined
Tiltedly；Or the upper surface of the top flange is horizontal, lower surface inclination, the upper surface inclination of the lower flange, lower surface are horizontal；Or
The upper surface of top flange described in person is horizontal, lower surface tilts, and the upper surface of the lower flange is horizontal, lower surface tilts；
The beam longitudinal variable-thickness edge of a wing is made of longitudinal thickness-variable steel plate, changes slope according to stress condition design thickness at node
Degree, and reinforce node without secondary operation welded cover plate, the edge of a wing is integrated with cover board realization is reinforced, and avoids stress raisers
The influence generated with welding, the preparation of the longitudinal thickness-variable steel plate are during the rolling process by the opening of continuously change roll
Degree is to change longitudinal thickness；
The longitudinal variable-thickness edge of a wing can be designed according to joints situation, wherein the beam longitudinal variable-thickness edge of a wing can
To be flange of beam Varying-thickness, other region flange of beam equal thickness in certain area at node, thickness change range be from column
Flange surfaces weld beam-ends face starts at the minimum edge of a wing thickness of design, variation pattern be by maximum gauge be continuously reduced for
Minimum thickness is equal thickness section into girder span since from minimum thickness；It is also possible to according to Vierendeel girder stress condition by monolith
Longitudinal thickness-variable steel plate production, the structure of self-assembling formation beam end edge of a wing Varying-thickness；The longitudinal thickness-variable steel plate was rolling
Change longitudinal thickness by continuously changing the opening degree of roll in journey, so that it is rolled into different-thickness as needed, it is different thick
Changing slope, different Varying-thickness segment length are spent, and every mechanical property of the steel plate is required to meet the regulations of related specifications, and
Mechanical property variation difference is smaller at different-thickness；
The reinforced node of beam column can guarantee node strength and rigidity due to the structure with the beam longitudinal variable-thickness edge of a wing,
To make to form plastic hinge prior to node under geological process in the beam at the equal thickness edge of a wing, guarantee the elastic work at beam-to-column joint
Make state, improve ductility of joint, enhance node energy dissipation capacity, is not necessarily in addition, the installation of the reinforced node of the beam column is fixed
It is welded with cover board on flange of beam, so as to accelerate speed of application, increase property easy for installation, reduce cost, will not also cause stress
Concentration, welding heat affected zone increase and welding defect increase and influence the stress performance of flange of beam at node.
2. the reinforced node of beam column according to claim 1, wherein the beam longitudinal variable-thickness edge of a wing is certain at node
Flange of beam Varying-thickness, other region flange of beam equal thickness in region, and the structure on the longitudinal variable-thickness edge of a wing is by vertical
It is formed to variable-thickness steel plate and equal thickness steel plate butt welding.
3. the reinforced node of beam column according to claim 1, wherein the beam longitudinal variable-thickness edge of a wing is by monolith longitudinal direction
Variable-thickness steel plate production, and the web is also to be made by monolith longitudinal thickness-variable steel plate.
4. the reinforced node of beam column according to claim 1, during installation, using the high-strength bolt as positioning spiral shell
The web is connected on the shear plate of the column edge of a wing by bolt, the welding of beam longitudinal variable-thickness edge of a wing full penetration single groove
In the column edge of a wing, after the flange of beam and the column edge of a wing weld, then the high-strength bolt is tightened, completes all to install
Journey.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510202432.5A CN104863267B (en) | 2015-04-24 | 2015-04-24 | A kind of beam column reinforced node of beam end edge of a wing Varying-thickness |
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| CN201510202432.5A CN104863267B (en) | 2015-04-24 | 2015-04-24 | A kind of beam column reinforced node of beam end edge of a wing Varying-thickness |
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| CN104863267B true CN104863267B (en) | 2019-01-04 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106013430A (en) * | 2016-07-01 | 2016-10-12 | 天津大学 | Connecting rod element flange thickening type aluminum alloy space structure node |
| CN110382797B (en) * | 2017-02-17 | 2022-05-03 | Sdr技术股份有限公司 | Method for manufacturing column-beam joint structure and column-beam joint structure |
| CN106939706A (en) * | 2017-05-19 | 2017-07-11 | 沈阳建筑大学 | A kind of anti-fall reinforcing beam-column node structure that collapses |
| CN108708458A (en) * | 2018-06-19 | 2018-10-26 | 南阳师范学院 | It is a kind of to be suitable for the bolted and welded connection node that beam column is H profile steel |
| CN110158968A (en) * | 2019-04-15 | 2019-08-23 | 中冶天工集团有限公司 | Abnormal curved surface steel construction bolt welds node box type pillar beam method for rapidly mounting |
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| JP2000309981A (en) * | 1999-04-27 | 2000-11-07 | Shimizu Corp | Structure for earthquake-resisting beam-column connection and beam composed of h-sectional member |
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| CN104405042A (en) * | 2014-09-01 | 2015-03-11 | 湖北源盛钢构有限公司 | Steel stand column beam |
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Patent Citations (5)
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|---|---|---|---|---|
| JP2000309981A (en) * | 1999-04-27 | 2000-11-07 | Shimizu Corp | Structure for earthquake-resisting beam-column connection and beam composed of h-sectional member |
| JP2001271451A (en) * | 2000-03-27 | 2001-10-05 | Shimizu Corp | Thickness increased steel beam and its manufacture |
| CN103174222A (en) * | 2013-03-11 | 2013-06-26 | 同济大学 | Steel casting modularization panel point for connection of steel pipe column and H-shaped beam |
| CN203531148U (en) * | 2013-11-01 | 2014-04-09 | 江西建工第二建筑有限责任公司 | Wing-expanding corrugated web plate H-shaped steel beam-column joint connecting component |
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