CN106760854A - Rectilinear laemodipodiform pole power consumption bar - Google Patents
Rectilinear laemodipodiform pole power consumption bar Download PDFInfo
- Publication number
- CN106760854A CN106760854A CN201710056137.2A CN201710056137A CN106760854A CN 106760854 A CN106760854 A CN 106760854A CN 201710056137 A CN201710056137 A CN 201710056137A CN 106760854 A CN106760854 A CN 106760854A
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- Prior art keywords
- section
- middle limiting
- realizing middle
- core component
- energy dissipating
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Classifications
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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
Abstract
The invention discloses a kind of rectilinear laemodipodiform pole power consumption bar, including core component, outer constraint component and shop bolt；The core component is connected and composed by multiple orthogonal energy dissipating sections, realizing middle limiting section, ring section and two ends linkage section along longitudinally coaxial line, realizing middle limiting section is located at the centre of core component, ring section is spaced apart with energy dissipating section, it is arranged in the both sides of realizing middle limiting section, and it is collectively forming entirety with realizing middle limiting section, the affixed two ends linkage section in outside two ends, is collectively forming core component；The section of the realizing middle limiting section, ring section and two ends linkage section is all circle, centre diametrically perforate one of realizing middle limiting section, the cutting along its length of energy dissipating section makes so that the section of energy dissipating section is two parallel opposite side, other two short side is former camber line, the new area of section for being formed causes that core component energy dissipating section under the effect of axial push-pull power enters surrender, and realizing middle limiting section, ring section and two ends linkage section remain elasticity.
Description
Technical field
The invention belongs to field of civil engineering, it is related to a kind of buckling-restrained branch for reducing engineering structure seismic response
Support.
Background technology
City and its building when meeting with violent earthquake not only can recurring structure destruction, can also produce the secondary calamity such as fire
Evil, and thus trigger a series of chain disasters to react.Accordingly researcher propose energy-dissipating and shock-absorbing concept, it is intended to by structure
Middle installation energy-dissipating device, is absorbed and dissipation energy by it, effectively reduces seismic structural response, so as to avoid main structure body portion
The heavy damage of position.Mild steel damper is a kind of energy-dissipating and shock-absorbing component of superior performance, in the developed country such as Japan and the U.S.
Quick popularization and application are obtained, and China is still in the starting stage with application for the research of mild steel damper, still suffers from many
Problem needs further to solve.Power consumption bar requires to keep elasticity as a kind of new mild steel damper under small shake effect, with
Structure cooperates, there is provided enough overall lateral rigidities, and under fortification intensity or rarely occurred earthquake effect, the core of the bar that consumes energy
Center portion part enters surrender, and deformation of the outer constraint component to core is effectively constrained, and suppresses power consumption bar partly or wholly
Unstability, realizes the tension and compression surrender power consumption of power consumption bar.Therefore, power consumption bar both as the common support of structure, and can simultaneously have concurrently
The effect of energy-dissipating device, finally causes that agent structure is unlikely under geological process and destruction or the only destruction of lesser degree occurs,
It is a kind of preferable energy-consuming shock absorber.
The outer constraint component of traditional buckling restrained brace is generally formed by steel with Combined concrete, and cost is relatively low, but
It is to still suffer from certain problem：(1) quality of cast concrete, such as packing, are influenceed larger, concrete setting meeting by technique
Production Time is extended, production efficiency is reduced；(2) because concrete part leakiness may cause part by core component pressure
It is broken, so as to cause core component local buckling, reduce power consumption bar performance；(3) can freely be drawn to ensure core stressed member
Pressure, often wraps up non-cohesive material in core stressed member so that concrete is disengaged with core stressed member surface, while giving core
Stressed member is provided certain space by compression swelling, but during pouring with vibrated concrete, it is difficult to ensure that soap-free emulsion polymeization
Material wraps up core stressed member according to design requirement, so as to influence the performance of buckling restrained brace.
Further, using the bamboo shape buckling restrained brace of all steel about area of beam, such as number of patent application：
201610121121.0, its core component is multiple circle energy dissipatings sections and round and elastic section along the alternate setting structure of longitudinally coaxial line
Into, but can be twisted deformation because circular energy dissipating section is pressurized, the presence of torsional deflection can cause round mandrel local deformation
Increase, so as to reduce the low cycle fatigue property of buckling restrained brace.
The content of the invention
The present invention is concrete compaction and soap-free emulsion polymeization in the buckling restrained brace for solving steel and Combined concrete constraint component
Material set difficult and the influence to performance, the compression of bamboo shape buckling restrained brace easily twist deformation the problems such as, it is proposed that
A kind of rectilinear laemodipodiform pole power consumption bar.
The technical solution adopted by the present invention is：A kind of rectilinear laemodipodiform pole power consumption bar, including core component, outer constraint
Part and shop bolt；
The core component is by multiple orthogonal energy dissipating sections, realizing middle limiting section, ring section and two ends linkage section along longitudinal direction
Coaxial line is connected and composed, and realizing middle limiting section is located at the centre of core component, and ring section is spaced apart with energy dissipating section, is arranged in centre
Spacing section of both sides, and entirety is collectively forming with realizing middle limiting section, the affixed two ends linkage section in outside two ends is collectively forming core
Part；The section of the realizing middle limiting section, ring section and two ends linkage section is all circle, and the centre of realizing middle limiting section is diametrically
Perforate one, energy dissipating section cutting making along its length causes that the section of energy dissipating section is two parallel opposite side, and two short sides are original arc in addition
Line, the new area of section of formation causes that core component energy dissipating section under the effect of axial push-pull power enters surrender, and realizing middle limiting section,
Ring section and two ends linkage section remain elasticity；
The outer constraint component is round tube, and core component is located inside outer constraint component, and the length of outer constraint component expires
One end of sufficient two ends linkage section be located at outer constraint component inside, and realizing middle limiting section, ring section and two ends linkage section diameter
It is slightly less than the internal diameter of outer constraint component so that there is microgap between the two, microgap is slightly larger than realizing middle limiting section in greatest axis
Radial deformation value under being acted on to pressure.
The centre of the outer constraint component diametrically perforate two, the diameter in hole two is slightly larger than the hole in realizing middle limiting section
Two, and enable that shop bolt is passed through from hole one and Kong Erzhong.
The energy dissipating section of core component is cut and is made along its length by pole, and the section of energy dissipating section is two parallel opposite side
With circular arc short side, microgap is only existed between circular arc short side and outer constraint component.Such local cutting process causes that energy dissipating section is received
Flexural deformation during pressure is the torsional deflection that energy dissipating section is largely avoided perpendicular to weakening face, additionally, energy dissipating section circular arc is short
Between side, realizing middle limiting section and two ends linkage section and outer constraint duct member, microgap, the lateral deformation of core component are only existed
Also operative constraint is obtained.Thus energy dissipating section torsional deflection and the lateral deformation of core component is all constrained well, is entered again
One step reduces the surface strain of core component, improves the low cycle fatigue property of power consumption bar.
Preferably, the core component for steel make when, realizing middle limiting section, ring section and two ends linkage section it is transversal
Face area is at least more than 1.6 times of energy dissipating section.
When core component makes for steel, the core component of laemodipodiform pole power consumption bar can be with superpower existing after surrender
As that is, bearing capacity is further improved, and the main cause of this phenomenon is classified as：(1) strain hardening of steel, according to the present application
Various steel (Q235, Q345, Q390) CYCLIC LOADING experiment that people is carried out to early stage, with reference to existing document achievement, determines steel
Strain hardening coefficient be about 1.42；(2) compression bearing adjustment, the core component and outer constriction of laemodipodiform pole power consumption bar
There is inevitably friction and poisson effect between part, according to present inventor's many experimental results, compression bearing
The maximum of adjustment can be taken as 1.13.It can thus be concluded that, laemodipodiform pole power consumption bar over-strength factor w can be taken as 1.6 (i.e. 1.42 ×
1.13 value).Therefore, present invention provide that the cross section face of core component realizing middle limiting section, ring section and two ends linkage section
Product is at least 1.6 times of energy dissipating section, it is ensured that the surrender bearing capacity of realizing middle limiting section, ring section and two ends linkage section is more than ring
Shape pole power consumption bar maximum load capacity, realizing middle limiting section, ring section and two ends linkage section can remain bullet under load action
Property.
Preferably, the length of the realizing middle limiting section is at least above its radius.
Realizing middle limiting section and centre all diametrically perforates of outer constraint component so that shop bolt can from it is outer about
Passed through in the hole of the hole of beam part and realizing middle limiting section.The radius size of perforate is typically taken as 1.5mm, tapping can cause compared with
Big stress concentration, according to the result of the test of applicant's early stage, when realizing middle limiting segment length is more than radius, it is ensured that alignment pin
Effective work of nail, occurs without the premature degradation of realizing middle limiting section.
Preferably, the ring section is more than in outer constraint component along axis and diameter cross-sectioned catercorner length
Footpath.
When ring section is more than the internal diameter of outer constraint component along axis and diameter cross-sectioned catercorner length, ring section exists
Rotation inside outer constraint component will be constrained effectively, so as to further suppress the deformation of energy dissipating section, improve laemodipodiform
The performance of pole power consumption bar.
Preferably, described two two ends linkage sections are located at energy dissipating section and realizing middle limiting section forms overall outside and structure
It is connected.
Be connected in view of with structure, two ends linkage section can along the circumferential direction open thread and form connecting screw rod, screw rod it is net
Area of section is at least more than 1.5 times of energy dissipating section.
Preferably, multiple energy dissipatings section of the core component is orthogonal successively.
When multiple energy dissipatings section vertical distribution of core component, flexural deformation when each energy dissipating section is pressurized is each perpendicular to respectively
From weakening face, based on above-mentioned deformation characteristic feature, the energy dissipating section of vertical distribution enters one from the geometric configuration angle of core component
Step avoids the overall torsional deflection of core component.
The invention has the advantages that：
1. the energy dissipating section of rectilinear laemodipodiform pole power consumption bar core component is cut and is made along its length by pole,
The section of energy dissipating section is two parallel opposite side and circular arc short side, and microgap is only existed between circular arc short side and outer constraint component.
2. the local weakening method of rectilinear laemodipodiform pole power consumption bar energy dissipating section so that energy dissipating section lateral deformation is vertical
In the two energy dissipatings parallel opposite side of section, the torsional deflection of energy dissipating section is largely avoided, additionally, energy dissipating section circular arc short side, middle limit
Between position section, ring section and two ends linkage section and outer constraint duct member, microgap is only existed, the lateral deformation of core component is obtained
To operative constraint.Thus energy dissipating section torsional deflection and the lateral deformation of core component is all constrained well, reduces core
The surface strain of center portion part, improves the low cycle fatigue property of buckling restrained brace.
3. rectilinear laemodipodiform pole power consumption bar core component is by multiple energy dissipatings section, realizing middle limiting section, ring section and two ends
Linkage section is connected and composed along longitudinally coaxial line, and the flexural deformation of energy dissipating section is subject to outer constraint component arc surface again under axle power effect
Suppression, so energy dissipating section avoids excessive bending deformation, therefore outer constraint component and circle energy dissipating while surrender
Mortar need not be filled between section or increases excessive parts and row constraint is entered to it so that the simple structure of power consumption bar and processing side
Just.
4. the energy dissipating section area of section of rectilinear laemodipodiform pole power consumption bar core component is relative to realizing middle limiting section and two
End linkage section is smaller, so that yield force is smaller, the rigidity requirement of external constraint component is relatively low, therefore outer constraint component can be simple
Circular casing so that pole power consumption bar simple structure and relatively light, convenient installation of conducting oneself with dignity.
5. the realizing middle limiting section of rectilinear laemodipodiform pole power consumption bar core component, ring section and two ends linkage section is transversal
Face area is at least 1.6 times of energy dissipating section so that realizing middle limiting section, ring section and two ends linkage section section remain elasticity, though
So there is subregion to be in without restrained condition, but local buckling will not occur, the traditional buckling restrained brace of contrast need to be in core
Part ensures for its stability without constraint setting ribbed stiffener, constructs more simple.
6. many energy dissipating sections are orthogonal successively, and flexural deformation when each energy dissipating section is pressurized is each perpendicular to respective weakening
Face, from the geometric configuration angle of core component, further avoid the overall torsional deflection of core component.
Brief description of the drawings
Fig. 1 is the rectilinear laemodipodiform pole power consumption bar plan view of the embodiment of the present invention 1；
Fig. 2 is the rectilinear laemodipodiform pole power consumption bar A-A profiles of the embodiment of the present invention 1；
Fig. 3 is the rectilinear laemodipodiform pole power consumption bar B-B profiles of the embodiment of the present invention 1；
Fig. 4 is the rectilinear laemodipodiform pole power consumption bar C-C profiles of the embodiment of the present invention 1；
Fig. 5 is the rectilinear laemodipodiform pole power consumption bar D-D profiles of the embodiment of the present invention 1；
Fig. 6 is the rectilinear laemodipodiform pole power consumption bar E-E profiles of the embodiment of the present invention 1；
Fig. 7 is the rectilinear laemodipodiform pole power consumption bar core component plan view of the embodiment of the present invention 1；
Fig. 8 is the rectilinear laemodipodiform pole power consumption bar core component F-F profiles of the embodiment of the present invention 1；
Fig. 9 is the rectilinear laemodipodiform pole power consumption bar core component G-G profiles of the embodiment of the present invention 1；
Figure 10 is the rectilinear laemodipodiform pole power consumption bar core component H-H profiles of the embodiment of the present invention 1；
Figure 11 is the rectilinear laemodipodiform pole power consumption bar core component I-I profiles of the embodiment of the present invention 1；
Figure 12 is the rectilinear laemodipodiform pole power consumption bar core component J-J profiles of the embodiment of the present invention 1；
Specific embodiment
The present invention will be further described with reference to the accompanying drawings and detailed description.
Embodiment 1
As shown in Fig. 1~12：A kind of rectilinear laemodipodiform pole power consumption bar, including core component 1, the and of outer constraint component 2
Shop bolt 3；
The core component 1 is connected by multiple orthogonal energy dissipating section 1-1, realizing middle limiting section 1-2, ring section 1-3 and two ends
Meet section 1-4 to be connected and composed along longitudinally coaxial line, realizing middle limiting section 1-2 is located at the centre of core component 1, ring section 1-3 and energy dissipating
Section 1-1 is spaced apart, and is arranged in the both sides of realizing middle limiting section 1-2, and be collectively forming entirety, outside two with realizing middle limiting section 1-2
Affixed two ends linkage section 1-4 is held, core component 1 is collectively forming；The realizing middle limiting section 1-2, ring section 1-3 and two ends linkage section
The section of 1-4 is all circle；The centre diametrically 1-2-1 of perforate one of realizing middle limiting section 1-2；1-1 is along length side for energy dissipating section
Cause that the section of energy dissipating section is two parallel opposite side 1-1-1 to cutting making, two short sides are original camber line 1-1-2 in addition；
The outer constraint component 2 is round tube, and core component 1 is located inside outer constraint component 2, the length of outer constraint component 2
One end that degree meets two ends linkage sections 1-4 is located at the inside of outer constraint component 2, and realizing middle limiting section 1-2, ring section 1-3 and two
The diameter of end linkage section 1-4 is slightly less than the internal diameter of outer constraint component 2 so that there is microgap between the two；
The diameter of the centre of the outer constraint component 2 diametrically 2-1 of perforate two, the 2-1 of hole two is slightly larger than realizing middle limiting
The 1-2-1 of hole two on section 1-2, and enable that shop bolt 3 is passed through from the 2-1 of hole two and the 1-2-1 of hole one.
Core component 1 for steel make when, realizing middle limiting section 1-2, the cross section of ring section 1-3 and two ends linkage sections 1-4
Area is at least more than 1.6 times of energy dissipating section 1-1.The length of realizing middle limiting section 1-2 is at least above its radius.Ring section 1-3 edges
Axis and diameter cross-sectioned catercorner length are more than the internal diameter of outer constraint component 2.Two ends linkage section 1-4 can along the circumferential direction be opened
Thread forms connecting screw rod, and the net cross-sectional area of screw rod is at least more than 1.5 times of energy dissipating section 1-1.The multiple of core component 1 disappears
1-1 is orthogonal successively for energy section.
It should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention,
Some improvements and modifications can also be made, these improvements and modifications also should be regarded as protection scope of the present invention.In the present embodiment not
Clear and definite each part can use prior art to be realized.
Claims (6)
1. a kind of rectilinear laemodipodiform pole power consumption bar, including core component (1), outer constraint component (2) and shop bolt (3),
It is characterized in that：
The core component (1) is by multiple orthogonal energy dissipatings section (1-1), realizing middle limiting section (1-2), ring section (1-3) and two
End linkage section (1-4) connects and composes along longitudinally coaxial line, and realizing middle limiting section (1-2) is located at the centre of core component (1), ring section
(1-3) is spaced apart with energy dissipating section (1-1), is arranged in the both sides of realizing middle limiting section (1-2), and with realizing middle limiting section (1-2) altogether
Similar shape is integral, the affixed two ends linkage section (1-4) in outside two ends, is collectively forming core component (1)；Realizing middle limiting section (the 1-
2), the section of ring section (1-3) and two ends linkage section (1-4) is all circle；The centre of realizing middle limiting section (1-2) is diametrically
Perforate one (1-2-1)；Energy dissipating section (1-1) cutting along its length makes so that the section of energy dissipating section is two parallel opposite side (1-1-
1), two short sides are former camber line (1-1-2) in addition；
The outer constraint component (2) is round tube, and core component (1) is internal positioned at outer constraint component (2), outer constraint component (2)
Length meet two ends linkage section (1-4) one end be located at outer constraint component (2) inside, and realizing middle limiting section (1-2), ring
The diameter of section (1-3) and two ends linkage section (1-4) is slightly less than the internal diameter of outer constraint component (2) so that have micro- between the two
Gap；
The centre of the outer constraint component (2) diametrically perforate two (2-1), the diameter of hole two (2-1) is limited slightly larger than middle
Hole two (1-2-1) on position section (1-2), and cause that shop bolt (3) can be passed through from hole two (2-1) and hole one (1-2-1).
2. a kind of rectilinear laemodipodiform pole power consumption bar according to claim 1, it is characterised in that：The core component
(1) when being made for steel, the cross-sectional area of realizing middle limiting section (1-2), ring section (1-3) and two ends linkage section (1-4) is at least
It is more than 1.6 times of energy dissipating section (1-1).
3. a kind of rectilinear laemodipodiform pole power consumption bar according to claim 1, it is characterised in that：The realizing middle limiting section
The length of (1-2) is at least above its radius.
4. a kind of rectilinear laemodipodiform pole power consumption bar according to claim 1, it is characterised in that：Ring section (the 1-
3) it is more than the internal diameter of outer constraint component (2) along axis and diameter cross-sectioned catercorner length.
5. a kind of rectilinear laemodipodiform pole power consumption bar according to claim 1, it is characterised in that：The two ends linkage section
(1-4) can along the circumferential direction open thread and form connecting screw rod, and the net cross-sectional area of screw rod is at least 1.5 times of energy dissipating section (1-1)
More than.
6. a kind of rectilinear laemodipodiform pole power consumption bar according to claim 1, it is characterised in that：The core component
(1) multiple energy dissipatings section (1-1) are orthogonal successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710056137.2A CN106760854B (en) | 2017-01-25 | 2017-01-25 | Rectilinear laemodipodiform pole energy consumption bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710056137.2A CN106760854B (en) | 2017-01-25 | 2017-01-25 | Rectilinear laemodipodiform pole energy consumption bar |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106760854A true CN106760854A (en) | 2017-05-31 |
| CN106760854B CN106760854B (en) | 2019-01-25 |
Family
ID=58942840
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| CN201710056137.2A Active CN106760854B (en) | 2017-01-25 | 2017-01-25 | Rectilinear laemodipodiform pole energy consumption bar |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110080591A (en) * | 2019-04-18 | 2019-08-02 | 济南大学 | A kind of steel frame beam column energy dissipation connector and its design method |
| CN111236724A (en) * | 2020-01-20 | 2020-06-05 | 同济大学 | Assembled sleeve metal round bar energy dissipation damper |
| CN111425037A (en) * | 2020-03-11 | 2020-07-17 | 同济大学 | Steel structure column base with replaceable metal round bar energy dissipation damper |
| CN113175115A (en) * | 2021-05-11 | 2021-07-27 | 四川大学 | Double-rigidity buckling restrained damper |
| CN114086661A (en) * | 2021-11-19 | 2022-02-25 | 中铁第四勘察设计院集团有限公司 | Yield energy consumption rod, cantilever section yield energy consumption beam column node and maintenance method thereof |
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| CN105714952A (en) * | 2016-03-03 | 2016-06-29 | 东南大学 | Bamboo-shaped buckling-restrained brace |
| CN105735504A (en) * | 2016-03-03 | 2016-07-06 | 东南大学 | Rectangular bamboo joint buckling restrained brace |
| CN205399715U (en) * | 2016-03-03 | 2016-07-27 | 中国京冶工程技术有限公司 | Serial -type bamboo shape buckling restrained brace |
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| JP2005207016A (en) * | 2004-01-20 | 2005-08-04 | Kawaguchi Metal Industries Co Ltd | Buckling restraint brace member |
| CN202672400U (en) * | 2012-01-12 | 2013-01-16 | 郭奇 | Novel bamboo type steel tube buckling restricting energy consumption support |
| CN105604205A (en) * | 2016-03-03 | 2016-05-25 | 中国京冶工程技术有限公司 | Modularized bamboo-shaped buckling restrained brace |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110080591A (en) * | 2019-04-18 | 2019-08-02 | 济南大学 | A kind of steel frame beam column energy dissipation connector and its design method |
| CN111236724A (en) * | 2020-01-20 | 2020-06-05 | 同济大学 | Assembled sleeve metal round bar energy dissipation damper |
| CN111425037A (en) * | 2020-03-11 | 2020-07-17 | 同济大学 | Steel structure column base with replaceable metal round bar energy dissipation damper |
| CN111425037B (en) * | 2020-03-11 | 2021-07-02 | 同济大学 | Steel structure column base with replaceable metal round bar energy dissipation damper |
| CN113175115A (en) * | 2021-05-11 | 2021-07-27 | 四川大学 | Double-rigidity buckling restrained damper |
| CN114086661A (en) * | 2021-11-19 | 2022-02-25 | 中铁第四勘察设计院集团有限公司 | Yield energy consumption rod, cantilever section yield energy consumption beam column node and maintenance method thereof |
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|---|---|
| CN106760854B (en) | 2019-01-25 |
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