CN108532754B - Twin beams is bent shearing-type accentric support dissipative links, eccentrically braces structure - Google Patents
Twin beams is bent shearing-type accentric support dissipative links, eccentrically braces structure Download PDFInfo
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- CN108532754B CN108532754B CN201810174211.5A CN201810174211A CN108532754B CN 108532754 B CN108532754 B CN 108532754B CN 201810174211 A CN201810174211 A CN 201810174211A CN 108532754 B CN108532754 B CN 108532754B
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C3/04—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal
- E04C3/06—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal with substantially solid, i.e. unapertured, web
- E04C3/07—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of metal with substantially solid, i.e. unapertured, web at least partly of bent or otherwise deformed strip- or sheet-like material
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/024—Structures with steel columns and beams
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- Business, Economics & Management (AREA)
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- Environmental & Geological Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Abstract
The invention discloses a kind of twin beams to be bent shearing-type accentric support dissipative links, eccentrically braces structure, belongs to steel frame supporting structure technical field.The dissipative links include: top flange, lower flange, web and the first ribbed stiffener；Top flange is arranged in parallel with lower flange；Web is vertically arranged with the first ribbed stiffener；And web and the first ribbed stiffener connect the bottom surface of top flange and the top surface of lower flange simultaneously；Wherein, at least one is provided on top flange along the groove of top flange width direction recess；At least one is provided on lower flange along the groove of lower flange width direction recess；The through-hole for not penetrating through dissipative links length direction is provided on web, groove is not overlapped on dissipative links length direction with through-hole.By the way that a through-hole is arranged on web, so that dissipative links both ends bend after plastic deformation, shear plasticity deformation can occur in the middle part of web.The dissipative links can be deformed by bending ductility and shear plasticity deforms dissipation seismic energy, improve anti-seismic performance.
Description
Technical field
The present invention relates to steel frame supporting structure technical field, in particular to a kind of twin beams bending shearing-type accentric support consumption
It can beam, eccentrically braces structure.
Background technique
In high intensity Zone, flexure type eccentrically braces structure can be set in steel building, to enhance the anti-of building
Shock stability.In earthquake, flexure type eccentrically braces structure is bowed out existing localized plastic deformations, and dissipation seismic energy avoids building
It collapses.Common flexure type eccentrically braces structure includes: dissipative links, non-dissipative links, supporting beam and frame column.Wherein, non-consumption
Energy beam is arranged in parallel with dissipative links, and the two end is connected；Supporting beam connects the bottom surface of non-dissipative links；Frame column connects non-dissipative links
The end of not connected dissipative links.When meeting with earthquake, non-dissipative links, supporting beam and frame column are in elastic stage, dissipative links by
Mecystasis is in seismic force effects and generates plastic deformation, dissipation seismic energy.It is not difficult to find out that flexure type accentric support consumes
Energy beam is the important component in flexure type eccentrically braces structure.
A kind of flexure type accentric support dissipative links are provided in the related technology.As shown in Figure 1, the dissipative links include: upper limb
Edge 11, lower flange 12, web 13, the first ribbed stiffener 141.Wherein, top flange 11, lower flange 12 are wide rectangular steel plates, two
Person is arranged in parallel；Web 13 and the first ribbed stiffener 141 connect the bottom surface of top flange 11 and the top surface of lower flange 12 simultaneously.And
The length direction of web 13 is parallel to the length direction of top flange 11, and the first ribbed stiffener 141 is perpendicular to 13 length direction of web
Mode be fixed on web 13.When meeting with earthquake, mainly by top flange 11 and lower flange 12 bowed out existing plastic deformation with
Dissipation seismic energy.
In the implementation of the present invention, inventor find the relevant technologies the prior art has at least the following problems:
Under horizontal earthquake action, two end moments of flexure of Bending brace dissipative links in the related technology are larger, energy consumption
The middle section moment of flexure of beam is smaller, therefore the both ends of dissipative links can bend plastic deformation, and middle part will not bend moulding
Deformation.In this way, the plastic deformation effect performance of dissipative links is insufficient, the ability of dissipation seismic energy is not fully utilized,
Energy consumption effect is poor, and anti-seismic performance is not high.
Summary of the invention
The embodiment of the invention provides a kind of twin beams to be bent shearing-type accentric support dissipative links, eccentrically braces structure, in order to
Solve the defect for being difficult to decrease shearing-type eccentrically braces structure project cost in the related technology.The technical solution is specific as follows:
In a first aspect, providing a kind of twin beams bending shearing-type accentric support dissipative links, comprising: top flange, lower flange, abdomen
Plate, and, the first ribbed stiffener；
The top flange is arranged in parallel with the lower flange；The web is vertically arranged with first ribbed stiffener；And institute
It states web and first ribbed stiffener while connecting the bottom surface of the top flange and the top surface of the lower flange；
Wherein, at least one groove being recessed along the top flange width direction is provided on the top flange；Institute
It states and is provided at least one described groove being recessed along the lower flange width direction on lower flange；It is provided on the web
One does not penetrate through the through-hole of the dissipative links length direction, the groove and the through-hole on the dissipative links length direction not
It is overlapped.
Optionally, it is provided with the top flange of the groove or the width of the lower flange, along the dissipative links
Length direction be first gradually reduced, after remain unchanged, be gradually increased again.
Optionally, it is respectively set on the both ends for the top flange that the top flange is used to connect the non-dissipative links described recessed
Slot；
The groove is respectively set on the both ends for the lower flange that the lower flange is used to connect the non-dissipative links.
Optionally, the dissipative links further include: the first auxiliary edge of a wing, and, the second auxiliary edge of a wing；
The first auxiliary edge of a wing and second auxiliary edge of a wing are arranged on the web, and first auxiliary edge of a wing
Positioned at the top of the through-hole, second auxiliary edge of a wing is located at the lower section of the through-hole；
The first auxiliary edge of a wing and second auxiliary edge of a wing cover described logical on the length direction of the web
Hole.
Optionally, it is provided with the groove on the first auxiliary edge of a wing and second auxiliary edge of a wing,
And in the width direction of the dissipative links, first auxiliary edge of a wing, second auxiliary edge of a wing, the upper limb
Edge and the edge of the lower flange are concordant.
Optionally, first auxiliary edge of a wing, second auxiliary edge of a wing, the top flange and the lower flange are flat
It is capable and isometric；
First auxiliary edge of a wing, second auxiliary edge of a wing, the top flange and the lower flange uniform thickness.
Optionally, the dissipative links further include: the second ribbed stiffener；
Second ribbed stiffener connects the top surface on first auxiliary edge of a wing and the bottom surface of the top flange, and described second is auxiliary
Help first auxiliary edge of a wing of the bottom surface on the edge of a wing and the top surface of the lower flange and the not set through hole bottom surface and
The top surface on second auxiliary edge of a wing.
Optionally, in the dissipative links width direction, the outer edge of first ribbed stiffener and second ribbed stiffener,
It is concordant with the outer edge at the most narrow width of the top flange and the lower flange.
Second aspect, the embodiment of the invention provides a kind of eccentrically braces structures, comprising: dissipative links, non-dissipative links, support
Beam, and, frame column；The non-dissipative links are arranged in parallel with the dissipative links and end connects, the supporting beam with it is described non-
The bottom surface of dissipative links connects, and the frame column is connect with the end that the non-dissipative links are not connected with the dissipative links；Wherein, described
Dissipative links are that twin beams provided by first aspect is bent shearing-type accentric support dissipative links, the non-dissipative links, the supporting beam
And overall plastic property bend-carrying capacity or overall plastic property shear resistance capacity phase of the design internal force of the frame column with the dissipative links
Match.
Optionally, the non-dissipative links further include that the non-dissipative links are arranged in for connecting the both ends of the dissipative links
Third ribbed stiffener.
The third ribbed stiffener connects the top flange bottom surface of the non-dissipative links and the bottom wing of the non-dissipative links simultaneously
Edge top surface.
Technical solution provided in an embodiment of the present invention has the benefit that
It, can in the middle part of web so that dissipative links both ends bend after plastic deformation by the way that a through-hole is arranged on web
Continue that shear plasticity deformation occurs.Therefore, which both can deform dissipation seismic energy by bending ductility, can also be by cutting
Plastic deformation dissipation seismic energy is cut, the plastic deformation effect of dissipative links is given full play to, improves its energy consumption effect, improve shock resistance
Energy.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing.
Fig. 1 is the axonometric drawing of provided flexure type eccentrically braces structure in the related technology；
Fig. 2 is the main view of twin beams flexure type accentric support dissipative links provided in an embodiment of the present invention；
Fig. 3 is twin beams bending shearing-type accentric support energy consumption web setting provided in an embodiment of the present invention through hole along height
Spend the cross-sectional view in direction；
Fig. 4 is twin beams bending shearing-type accentric support energy consumption web setting provided in an embodiment of the present invention through hole along height
Spend the cross-sectional view in direction；
Fig. 5 is twin beams provided in an embodiment of the present invention bending shearing-type accentric support energy consumption flange of beam setting groove and not
Cross-sectional view at second ribbed stiffener along short transverse is set；
Fig. 6 is twin beams bending shearing-type accentric support energy consumption flange of beam setting groove provided in an embodiment of the present invention and sets
Set the cross-sectional view at the second ribbed stiffener along short transverse.
Each label is respectively as follows: in attached drawing
1, dissipative links；
11, top flange；
12, lower flange；
13, web；
141, the first ribbed stiffener；
142, the second ribbed stiffener；
151, groove；
152, through-hole；
161, the first auxiliary edge of a wing；
162, the second auxiliary edge of a wing；
2, non-dissipative links；
21, third ribbed stiffener；
3, supporting beam.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached drawing to embodiment party of the present invention
Formula is described in further detail.
The embodiment of the invention provides a kind of twin beams to be bent shearing-type accentric support dissipative links, as shown in Fig. 2, and combining figure
3, which includes: top flange 11, lower flange 12, web 13, and, the first ribbed stiffener 141.Top flange 11 and lower flange 12
It is arranged in parallel；Web 13 is vertically arranged with the first ribbed stiffener 141；And web 13 and the first ribbed stiffener 141 connect upper limb simultaneously
The bottom surface of edge 11 and the top surface of lower flange 12.
Wherein, at least one is provided on top flange 11 along the groove 151 of 11 width direction of top flange recess, in bottom wing
At least one is provided on edge 12 along the groove 151 of 12 width direction of lower flange recess.One is provided on web 13 not pass through
The through-hole 152 of logical dissipative links length direction.Also, groove 151 is not overlapped on dissipative links length direction with through-hole 152.
In embodiments of the present invention, the shape of through-hole 152 is not specifically limited, such as rectangle, rectangular, oval
Deng.In the following description, it is illustrated so that through-hole 152 is rectangular through-hole as an example.Meanwhile the present invention is implemented in conjunction with following formula
The working principle of bending shearing-type accentric support dissipative links provided by example is illustrated:
Firstly, flexure type accentric support dissipative links can be by top flange 11 and lower flange 12 by curved plastic deformation in earthquake
With dissipation seismic energy.And since the length of dissipative links is longer, the shearing force born is relatively weak, therefore in the related technology
Provided flexure type dissipative links web 13 when meeting with earthquake shear plasticity deformation will not occur because bearing shear force.It changes
Yan Zhi, flexure type accentric support dissipative links provided by the relevant technologies are deformed by bending ductility, rather than shear plasticity deforms, and are come
Dissipation seismic energy.
But in the bending shearing-type accentric support dissipative links provided by the embodiment of the present invention, due on web 13
Web 13 will appear by shearing force when provided with through-hole 152, being weakened to 13 part of web, therefore meeting with earthquake cuts
Cut plastic deformation.And can be plastically deformed by 13 part of web that through-hole 152 is covered in the longitudinal direction, form shearing
The ability of dissipative links earthquake energy is improved in plastically deforming area.
In this way, as a whole, bending shearing-type accentric support dissipative links provided by the embodiment of the present invention meet with earthquake
When, there is bending ductility deformation because the bending moment of receiving is big at dotted line in the both ends of dissipative links such as Fig. 2；The middle part of dissipative links,
Due to being provided with through-hole 152 on web 13, after dissipative links both ends bend plastic deformation, the middle part of web 13 can
Continue that shear plasticity deformation occurs.Therefore, which both can deform dissipation seismic energy by bending ductility, can also be by cutting
Plastic deformation dissipation seismic energy is cut, the plastic deformation effect of dissipative links is given full play to, improves its energy consumption effect, improve shock resistance
Energy.
Secondly, there is also steel using amounts to be difficult to decrease for dissipative links provided by the related technology, the high defect of project cost.?
In the embodiment of the present invention, it is recessed along dissipative links width direction that at least one is provided on the top flange of dissipative links 11 and lower flange 12
Sunken groove 151.The design internal force of non-dissipative links or supporting beam or frame column can be reduced by groove 151, and then is reduced whole
The steel using amount of eccentrically braces structure.It makes a concrete analysis of as follows:
In flexure type eccentrically braces structure, the design internal force of non-dissipative links or supporting beam or frame column meets following item
Part:
F=Ω (MSN/M)F1 (1)
In formula, the design internal force of the non-dissipative links of F-or supporting beam or frame column；
F1Load effect internal force when-non-dissipative links or supporting beam or frame column frequently occurred earthquake combine；
MSNThe overall plastic property bend-carrying capacity of-dissipative links；
Load effect moment of flexure when M-dissipative links frequently occurred earthquake combination；
Ω-constant amplification factor.
According to formula (1), it is not difficult to find out that, the design internal force F's and dissipative links of non-dissipative links or supporting beam or frame column is overall plastic
Property bend-carrying capacity be positively correlated.Wherein, load effect internal force when non-dissipative links or supporting beam or frame column frequently occurred earthquake combine
F1And the load effect moment M when combination of dissipative links frequently occurred earthquake, pass through software and simulates calculating acquisition；Dissipative links it is overall plastic
Property bend-carrying capacity MSNIt is obtained by the following formula:
MSN=(fy-δa)Wpb (2)
In formula, WpbThe plastic section modulus of-dissipative links；
fy- dissipative links steel yield strength；
δaThe mean normal stress on the beam section edge of a wing caused by-axial force.
Wherein, the plastic section modulus W of dissipative linkspbIt is calculated by the following formula:
Wpb=bf×tf×h+t×h2/4 (3)
In formula, bf- energy consumption flange of beam is by curved width；
tfThe thickness of-energy consumption flange of beam；
T-energy consumption web thickness；
H-energy consumption web height.
In the related art, the width on the edge of a wing of dissipative links and the edge of a wing of non-dissipative links is of same size；And in the present invention
In embodiment, the width on the edge of a wing of dissipative links is less than the width on the edge of a wing of non-dissipative links.Therefore, in conjunction with formula (1), (2), (3),
It is understandable to be, under the premise of non-energy consumption beam width is constant, compared with dissipative links in the related technology, institute of the embodiment of the present invention
The dissipative links of offer have smaller plastic section modulus, and then have smaller overall plastic property bend-carrying capacity, so reduce
The design internal force of non-dissipative links, supporting beam or frame column.
Meanwhile the design internal force and respective steel using amount of non-dissipative links or supporting beam or frame column are positively correlated.With steel using amount
For contributing maximum frame column to whole eccentrically braces structure steel using amount, when frame post design internal force increases, frame need to be increased
Trestle sectional dimension so will increase frame column steel using amount；When frame post design internal force reduces, cross-section of frame column ruler can be reduced
It is very little, so reduce frame column steel using amount.
Based on this, in embodiments of the present invention, by groove 151, the width of top flange 11 and lower flange 12 is reduced, is reduced
The design internal force of non-dissipative links, supporting beam and frame column, thereby reduces the use of non-dissipative links, supporting beam and frame column
Steel amount.And since steel using amount of the steel using amount of frame column to whole eccentrically braces structure contributes maximum, so even in non-energy consumption
It has increased the components such as the auxiliary edge of a wing in beam newly, still can have been reduced using the overall steel using amount of the eccentrically braces structure of the dissipative links.
In this way, solving the defect for being difficult to decrease project cost in the related technology.
Also, through-hole 152 is set on web 13, the effective width of shearing force can be carried due to reducing web 13, is dropped
The low overall plastic property shear resistance capacity of dissipative links, therefore the design internal force of non-dissipative links, supporting beam and frame column can also be reduced,
And then it contributes to the steel using amount for reducing whole eccentrically braces structure.In other words, through-hole 152 is arranged on web 13 equally has
Conducive to reduction project cost.
Furthermore it should be noted that overall plastic property bend-carrying capacity of the groove 151 for reducing dissipative links, and cutting on the edge of a wing
Weak part needs to guarantee the shear behavior of dissipative links；Through-hole 152 for reducing energy consumption overall plastic property shear resistance capacity, and in abdomen
The weakened part of plate need to guarantee the anti-bending strength of dissipative links.Therefore, in order to avoid groove 151 and through-hole 152 influence each other, at this
In inventive embodiments, groove 151 and through-hole 152 do not have lap on the length direction of dissipative links.
Simultaneously as the steel using amount of eccentrically braces structure can be further decreased, the especially steel using amount of frame column, therefore energy
Enough reduce the minimum cross-sectional area of frame column.Reduce frame column minimum cross-sectional area, on the one hand, be conducive to frame column installation,
Shorten installation period；On the other hand, but also the clear distance between adjacent frame trestle can further increase, it is empty to increase building interior
Between, conducive to the arrangement of building interior process pipe.Also, since the size of groove 151 and through-hole 152 is easily controllable, convenient for adding
Work, therefore expand the selectable range of eccentrically braces structure steel using amount.
Further, in embodiments of the present invention, the width of the top flange 11 at setting fluted 151 or lower flange 12
Degree, along dissipative links length direction be first gradually reduced, after remain unchanged, be gradually increased again.The width on the edge of a wing (11,12) gradually becomes
Change and can avoid stress concentration, guarantees the stability of the edge of a wing (11,12) structure.Specifically, the shape about groove 151, such as Fig. 3 institute
The cross-sectional view along dissipative links length direction shown, groove 151 include being connected: the first tilting section, straight section and the second inclination
Section.At this point, the first tilting section and the second tilting section gentle transition, so that the width of the edge of a wing (11,12) gradually changes.Preferably,
Concentrated to further avoid stress, the first tilting section and the second tilting section are segmental arc, and straight section and the first tilting section and
The tangent line of second tilting section is parallel.
Further, in embodiments of the present invention, groove 151 can be set at the middle part or both ends of dissipative links.And it is recessed
The total quantity of slot 151 can be set it is multiple, such as 1,2,3,4 etc..It is held for the overall plastic property for reducing dissipative links by curved
Carry the angle of power, it is contemplated that the bending moment at dissipative links both ends is greater than the bending moment in the middle part of dissipative links, preferably sets groove 151
It sets and is used to connect the both ends of non-dissipative links in dissipative links.
Specifically, groove 151 is respectively set on the both ends for the top flange that top flange 11 is used to connect non-dissipative links；Under
Groove 151 is respectively set on the both ends for the lower flange that the edge of a wing 12 is used to connect non-dissipative links.More specifically, the embodiment of the present invention mentions
The dissipative links of confession have altogether 4 grooves 151, wherein it is used to connect the both ends of the top flange of non-dissipative links in top flange 11,
Groove 151 there are two being respectively set；It is used to connect the both ends of the lower flange of non-dissipative links in lower flange 12, is respectively arranged with two
A groove 151.And groove 151 is symmetrical arranged on top flange 11 and lower flange 12 about web 13.
Further, dissipative links further include: the first auxiliary edge of a wing 161, and, the second auxiliary edge of a wing 162；First aileron
Edge 161 and the second auxiliary edge of a wing 162 are arranged on web 13, and the first auxiliary edge of a wing 161 is located at the top of through-hole 152, and second
The auxiliary edge of a wing 162 is located at the lower section of through-hole 152.The first auxiliary edge of a wing 161 and the second auxiliary edge of a wing 162 are in the length side of web 13
Covering through-hole 152 upwards.In this way, it is not set logical to assist the edge of a wing 162 to enhance web 13 by the first auxiliary edge of a wing 161, second
The region in hole 15 avoids destroying in earthquake.
And since through-hole 152 is rectangular through-hole, the top edge of through-hole 152 is arranged in the preferably first auxiliary edge of a wing 161
Place, the second auxiliary edge of a wing 162 are arranged at the lower edge of through-hole 152.Referring in particular to Fig. 2, at this point, being located at the top of through-hole 152
The auxiliary edge of a wing and top flange 11 form a sub- dissipative links；Positioned at the auxiliary edge of a wing of the lower section of the through-hole 152 and lower flange
12 form another dissipative links.Such through-hole 152 and the auxiliary edge of a wing (161,162) form two sub- dissipative links, that is, are formed
Twin-spar construction.By the synergistic effect between two sub- dissipative links, enhance dissipative links is cut deformability, effectively to consume
Dissipate seismic energy.
Also, it is arranged fluted 151 on the first auxiliary edge of a wing 161 and the second auxiliary edge of a wing 162, and in the width of dissipative links
It spends on direction, the first auxiliary edge of a wing 161, second assists the edge of the edge of a wing 162, top flange 11 and lower flange 12 concordant.So
Increase auxiliary the edge of a wing basis can go up guarantee reduce dissipative links overall plastic property bend-carrying capacity, and then guarantee reduce frame column,
The design internal force of supporting beam and non-dissipative links.Specifically, the two first auxiliary edges of a wing are symmetrical arranged in the two sides of web 13
161 and the two second auxiliary edges of a wing 162.To guarantee the symmetrical homogeneity of whole energy consumption girder construction, to realize desired mechanics
Performance.
Size about the auxiliary edge of a wing (161,162) is it should be understood that the first auxiliary edge of a wing 161, the second auxiliary edge of a wing
162, top flange 11 and lower flange 12 are parallel and isometric.Also, the first auxiliary edge of a wing 161, the second auxiliary edge of a wing 162, upper limb
12 uniform thickness of edge 11 and lower flange.In this way, being conducive to avoid the occurrence of stress concentration, guarantee integrally-built stability.
Further, in embodiments of the present invention, as shown in Fig. 2, and combine Fig. 4, Fig. 5, Fig. 6, dissipative links further include: the
Two ribbed stiffeners 142.The top surface on the first auxiliary of second ribbed stiffener 142 connection edge of a wing 161 and the bottom surface of top flange 11, the second auxiliary
The bottom surface and the on the first auxiliary edge of a wing 161 at the bottom surface on the edge of a wing 162 and the top surface of lower flange 12 and not set through-hole 151
The top surface on the two auxiliary edges of a wing 162.By the second ribbed stiffener 142, the web 13 at not set through-hole 15 is enhanced, guarantees dissipative links
The stability of structure avoids the stress in earthquake from concentrating and generate destruction, and then realizes that lasting, effectively dissipate seismic energy
Amount.Also, in dissipative links width direction, the outer edge of the first ribbed stiffener 141 and the second ribbed stiffener 142, with top flange 11 and
Outer edge at the most narrow width of lower flange 12 is concordant, so that dissipative links reach balance between steel using amount and mechanical property.
In addition, it should be noted that, it is set in the junction of the first ribbed stiffener 141 and the second ribbed stiffener 142 and web 13
It is equipped with chamfering, stress concentration occurs in the junction to avoid the first ribbed stiffener 141 and the second ribbed stiffener 142 and web 13.
Also, dissipative links provided by the embodiment of the present invention are axially symmetric structure.Specifically, the dissipative links are in its length
It in short transverse and is symmetrical structure in width direction on direction, so with the uniformity of the whole dissipative links of increase.
Bending shearing-type accentric support dissipative links provided by the embodiment of the present invention are strong with energy dissipation capacity, project cost is low
The characteristics of, there is good promotional value.
Second aspect, the embodiment of the invention provides a kind of eccentrically braces structures, as shown in Fig. 2, the eccentrically braces structure
It include: dissipative links 1, non-dissipative links 2, supporting beam 3, and, frame column (is not shown) on figure.Wherein, non-dissipative links 2 and dissipative links
1 is arranged in parallel and end connects, and supporting beam 3 is connect with the bottom surface of non-dissipative links 2, frame column and the not connected energy consumption of non-dissipative links 2
The end of beam 1 connects.Also, dissipative links 1 are bending shearing-type accentric support consumption provided by first aspect of the embodiment of the present invention
Energy beam, overall plastic property bend-carrying capacity or the overall plastic property of non-dissipative links 2, the design internal force of supporting beam 3 and frame column and dissipative links 1
Shear resistance capacity matches.
Further, non-dissipative links 2 further include the third being arranged on both ends of the non-dissipative links 2 for connecting dissipative links 1
Ribbed stiffener 21.And third ribbed stiffener 21 connects the bottom surface of the top flange of non-dissipative links 2 and the lower flange of non-dissipative links 2 simultaneously
Top surface.Easily there is stress concentration in the transitional region of dissipative links and non-dissipative links, therefore puts more energy into transitional region setting third
Rib 21 helps to improve the stability of whole eccentrically braces structure, and stress concentration is avoided structure destruction occur.
It is understood that the shearing-type eccentrically braces structure has both because using dissipative links provided by first aspect
Good energy dissipation capacity, anti-seismic performance and lower steel using amount and project cost.It is detailed in the analysis of first aspect, herein not
It repeats again.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (9)
1. a kind of twin beams is bent shearing-type accentric support dissipative links, comprising: top flange (11), lower flange (12), web (13), with
And first ribbed stiffener (141)；
The top flange (11) is arranged in parallel with the lower flange (12)；
The web (13) is vertically arranged with first ribbed stiffener (141)；
And the web (13) and first ribbed stiffener (141) connect the bottom surface of the top flange (11) and described simultaneously
The top surface of lower flange (12)；
It is characterized in that,
At least one is provided on the top flange (11) along the groove (151) of the top flange (11) width direction recess；
At least one is provided on the lower flange (12) along the groove of the lower flange (12) width direction recess
(151)；
The through-hole (152) for not penetrating through the dissipative links length direction is provided on the web (13),
The groove (151) is not overlapped on the dissipative links length direction with the through-hole (152)；
The dissipative links further include: the first auxiliary edge of a wing (161), and, the second auxiliary edge of a wing (162)；
First auxiliary edge of a wing (161) and the described second auxiliary edge of a wing (162) setting are on the web (13), and described the
The one auxiliary edge of a wing (161) is located at the top of the through-hole (152), and second auxiliary edge of a wing (162) is located at the through-hole (152)
Lower section；
First auxiliary edge of a wing (161) and second auxiliary edge of a wing (162) are equal on the length direction of the web (13)
Cover the through-hole (152).
2. dissipative links according to claim 1, which is characterized in that be provided with the top flange at the groove (151)
(11) or the width of the lower flange (12), be first gradually reduced along the length direction of the dissipative links, after remain unchanged, again by
It is cumulative big.
3. dissipative links according to claim 1, which is characterized in that in the top flange (11) for connecting non-dissipative links
The groove (151) are respectively set on the both ends of top flange；
The groove is respectively set on the both ends for the lower flange that the lower flange (12) are used to connect the non-dissipative links
(151)。
4. dissipative links according to claim 1, which is characterized in that in first auxiliary edge of a wing (161) and described second
The groove (151) are provided in the auxiliary edge of a wing (162),
And in the width direction of the dissipative links, first auxiliary edge of a wing (161), second auxiliary edge of a wing (162), institute
The edge for stating top flange (11) and the lower flange (12) is concordant.
5. dissipative links according to claim 4, which is characterized in that first auxiliary edge of a wing (161), second auxiliary
The edge of a wing (162), the top flange (11) and the lower flange (12) are parallel and isometric；
First auxiliary edge of a wing (161), second auxiliary edge of a wing (162), the top flange (11) and the lower flange
(12) uniform thickness.
6. dissipative links according to claim 1, which is characterized in that the dissipative links further include: the second ribbed stiffener (142)；
The top surface of second ribbed stiffener (142) connection, first auxiliary edge of a wing (161) and the bottom surface of the top flange (11),
At the bottom surface of second auxiliary edge of a wing (162) and the top surface of the lower flange (12) and the not set through-hole (152)
The top surface of the bottom surface of first auxiliary edge of a wing (161) and second auxiliary edge of a wing (162).
7. dissipative links according to claim 6, which is characterized in that in the dissipative links width direction, described first adds
The outer edge of strength rib (141) and second ribbed stiffener (142), it is most narrow with the top flange (11) and the lower flange (12)
Outer edge at width is concordant.
8. a kind of eccentrically braces structure, comprising: dissipative links (1), non-dissipative links (2), supporting beam (3), and, frame column；
The non-dissipative links (2) are arranged in parallel with the dissipative links (1) and end connects,
The supporting beam (3) connect with the bottom surface of the non-dissipative links (2),
The frame column is connect with the end that the non-dissipative links (2) are not connected with the dissipative links (1)；
It is characterized in that,
The dissipative links (1) are that twin beams according to any one of claims 1 to 7 is bent shearing-type accentric support dissipative links,
The design internal force of the non-dissipative links (2), the supporting beam (3) and the frame column is complete with the dissipative links (1)
Plasticity bend-carrying capacity or overall plastic property shear resistance capacity match.
9. eccentrically braces structure according to claim 8, which is characterized in that the non-dissipative links (2) further include that setting exists
The non-dissipative links (2) are used to connect the third ribbed stiffener (21) on the both ends of the dissipative links (1)；
The third ribbed stiffener (21) connects top flange bottom surface and the non-dissipative links (2) of the non-dissipative links (2) simultaneously
Lower flange top surface.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810174211.5A CN108532754B (en) | 2018-03-02 | 2018-03-02 | Twin beams is bent shearing-type accentric support dissipative links, eccentrically braces structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810174211.5A CN108532754B (en) | 2018-03-02 | 2018-03-02 | Twin beams is bent shearing-type accentric support dissipative links, eccentrically braces structure |
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| Publication Number | Publication Date |
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| CN108532754A CN108532754A (en) | 2018-09-14 |
| CN108532754B true CN108532754B (en) | 2019-08-30 |
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| CN201713963U (en) * | 2010-06-04 | 2011-01-19 | 同济大学 | Replaceable connecting beam |
| CN106703285B (en) * | 2016-12-13 | 2018-12-04 | 国核电力规划设计研究院 | A kind of shearing-type accentric support active beam link structure |
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