CN103758244B - Inclined paralled plates buckling restrained brace - Google Patents
Inclined paralled plates buckling restrained brace Download PDFInfo
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- CN103758244B CN103758244B CN201410016987.6A CN201410016987A CN103758244B CN 103758244 B CN103758244 B CN 103758244B CN 201410016987 A CN201410016987 A CN 201410016987A CN 103758244 B CN103758244 B CN 103758244B
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- 239000008358 core component Substances 0.000 claims abstract description 105
- 238000005265 energy consumption Methods 0.000 claims abstract description 94
- 239000000306 component Substances 0.000 claims abstract description 23
- 229910000831 Steel Inorganic materials 0.000 claims description 35
- 239000010959 steel Substances 0.000 claims description 35
- 238000005498 polishing Methods 0.000 abstract 1
- 230000000452 restraining effect Effects 0.000 description 16
- 230000000694 effects Effects 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000009499 grossing Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
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- 230000021715 photosynthesis, light harvesting Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
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- 230000002411 adverse Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
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- 239000003822 epoxy resin Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
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- 229920000647 polyepoxide Polymers 0.000 description 1
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Abstract
The invention discloses a kind of inclined paralled plates buckling restrained brace, comprise the buckling-restrained parts of energy consumption inner core component, gusset plate and uniform section; Described energy consumption inner core component comprises the end expanding section that middle surrender section is connected with for component, and the sectional area of end expanding section is greater than middle surrender section; The buckling-restrained parts of described uniform section are arranged on the periphery of the interlude of energy consumption inner core component, described gusset plate is fixed between the energy consumption inner core component edge of a wing and web, gusset plate along the position in energy consumption inner core component length direction between energy consumption inner core component ends expanding reach and the buckling-restrained parts of uniform section.The present invention is while the whole and part flexing ensureing operative constraint energy consumption inner core component, avoid and the conflicting of gusset plate, make buckling-restrained parts identical along cross section, component length direction, and without the need to polishing to energy consumption inner core component web chamfering place because of constraint requirements, significantly reduce difficulty of processing.
Description
Technical field
The invention belongs to field of civil engineering, relating to a kind of buckling restrained brace for reducing engineering structures seismic response.
Background technology
Before the nineties in 20th century, traditional structural seismic method is by agent structure local yielding dissipation seismic energy, and as beam hinge etc., this energy dissipation mode causes main structure body to destroy, repair difficulty and cost after seriously adding shake, repair after being unfavorable for the shake of structure.After Japanese Osaka-Kobe earthquake and U.S.'s north ridge earthquake, buckling restrained brace, as a kind of energy-dissipating and shock-absorbing component of superior performance, obtains in the developed country of many shakes such as Japan, the U.S. and applies fast, be also in developing stage in the research of China.Buckling restrained brace limits the flexural deformation of core component in core component outer wrapping constraint component, by core component tension and compression surrender dissipation seismic energy, common center support is equivalent under little shake effect, enough lateral rigidities are provided to structure, metal damper and dissipation energy is equivalent under medium and larger earthquake effect, so not only improve the ductility of structure but also given full play to the power consumption effect supported, making agent structure can not destroy or destroy less under geological process, be a kind of ideal energy dissipation mode.
At present, the cross section kind of buckling restrained brace can be divided three classes according to restraining tube material and combined situation: steel concrete restraining tube cross section, Steel concrete combination restraining tube cross section and all steel restraining tube cross section.Adopt steel concrete restraining tube cross section or Steel concrete combination restraining tube cross section, its Problems existing has: (1) structure manufacture required precision is high, manufacturing cost is caused to increase, special in fluid concrete, be difficult to ensure that the preset clearance between inner core component and peripheral constraint component meets the requirement of precision aspect; (2) wet trade such as fluid concrete is given to make and is brought impact with construction, and its precision controlling difficulty is large; (3) be coated with the isolated material many employings epoxy resin being contained in inner core component surface, kind is single, its poor durability, is easy to depart from from core surface.
In addition, adopt the buckling restrained brace in all steel restraining tube cross section, if its inner core component adopts I-shaped, cross, T-shaped component etc., because the edge of a wing of inner core component and web junction exist chamfering or weld seam, some buckling restrained braces are for realizing restraining tube parts perfection laminating inner core component, need the chamfering of mechanical grinding inner core component or the knuckle of constraint component, obviously like this can add construction complexity, easily cause again the mechanical damage to kernel constraint component.As adopted the flexing of four angle steel comprehensive constraint energy consumption inner core components in prior art example (patent CN101974949B), mechanical grinding process can be increased because of the chamfering of cross core component or weld seam equally; On the other hand, buckling-restrained parts in technical examples CN201190347Y are welded to form square tube by two angle steel, in order to realize square buckling-restrained parts cylinder interior angle fitting tightly kernel Member Lip, smoothing processing also must be made, as this increased construction complexity in the edge of inner core component angle steel and the corresponding acropodium position of buckling-restrained parts.In addition, these buckling-restrained parts may cause fitting tightly effect to kernel members constrain and decline because of many ripples bending deformation of kernel confining part, and then affect buckling-restrained effect.
Summary of the invention
The present invention makes the wet construction such as required precision and manufacturing cost is high, concrete difficulty, is coated with the single and poor durability of the isolated material kind being contained in inner core component surface in order to the buckling restrained brace solving steel concrete restraining tube cross section or Steel concrete combination restraining tube cross section, the buckling restrained brace in all steel restraining tube cross section needs the problem of additional processing and restraining tube part constraint reliability to the energy consumption inner core component containing chamfering or weld seam, propose a kind of easy to make, inclined paralled plates buckling restrained brace that reliability is high.
The technical solution used in the present invention is: a kind of inclined paralled plates buckling restrained brace, comprises the buckling-restrained parts of energy consumption inner core component, gusset plate and uniform section;
Described energy consumption inner core component comprises the end expanding section that middle surrender section is connected with for component, and the sectional area of end expanding section is greater than middle surrender section;
The buckling-restrained parts of described uniform section are arranged on the periphery of the interlude of energy consumption inner core component, the buckling-restrained parts of uniform section remain unchanged along energy consumption inner core component length direction section form, for retraining the whole and part flexing of energy consumption inner core component, the buckling-restrained parts of uniform section comprise flap, the flank side surface of flap and the energy consumption inner core component edge of a wing or the wide constraint of web end extension 1/4 ~ 1/2 near, and leave gap, gap is 0.5mm ~ 3mm;
Described gusset plate is fixed between the energy consumption inner core component edge of a wing and web, gusset plate along the position in energy consumption inner core component length direction between energy consumption inner core component ends expanding reach and the buckling-restrained parts of uniform section, its one end is located within the scope of energy consumption inner core component ends expanding reach, and the other end stretches in the buckling-restrained parts of uniform section.
As preferably, described energy consumption inner core component is dagger or T-shaped component.
As preferably, described gusset plate is the dull and stereotyped or angle steel of steel.
As preferably, described gusset plate is that steel is dull and stereotyped, and gusset plate is fixed in the energy consumption inner core component edge of a wing or web in root 1/2 place, and middle side and the gusset plate of the flap of the buckling-restrained parts of uniform section maintain distance, and with the affixed seam keeping parallelism of gusset plate.
As preferably, described energy consumption inner core component is dagger, the buckling-restrained parts of described uniform section by four flaps and four infill panels assembled by bolt; Described four flaps symmetry is placed on each edge of a wing or the web both sides of energy consumption inner core component, the constraint making its flank side surface and the energy consumption inner core component edge of a wing or web end extension 1/4 ~ 1/2 wide near; Described each infill panel between the flank side surface of every two flaps, and is positioned at each edge of a wing of energy consumption inner core component or web end, and the edge of a wing of the Thickness Ratio cross energy consumption inner core component of each infill panel is large; The flank side surface of each flap like this retrains the edge of the energy consumption inner core component edge of a wing or web jointly to the flank side surface of flap in symmetric position and corresponding infill panel.
As preferably, described energy consumption inner core component is T-shaped component, and the buckling-restrained parts of described uniform section are assembled by bolt by two flaps, three infill panels and one piece of steel flat board; Two flaps symmetry is placed on each edge of a wing or the web both sides of energy consumption inner core component 1, the constraint making its flank side surface and the energy consumption inner core component edge of a wing or web end extension 1/4 ~ 1/2 wide near; The dull and stereotyped face, the plane edge of a wing with energy consumption inner core component of steel near, and leave gap, gap is 0.5mm ~ 3mm; Each infill panel is between the flank side surface of every two flaps or between the flank side surface of flap and steel flat board; The flank side surface of each flap like this and the flank side surface of flap in symmetric position and corresponding infill panel, or the flank side surface of each flap retrains the edge of the energy consumption inner core component edge of a wing or web jointly to a steel flat board and corresponding infill panel.
As preferably, the lateral surface of the flap of described buckling-restrained parts is fixed with several lateral stiffening plate.
Buckling restrained brace of the present invention is made up of energy consumption inner core component and buckling-restrained parts.Buckling-restrained parts are positioned at the periphery of cross energy consumption inner core component interlude, by four flaps and four infill panels assembled, by controlling flap size, the partial cross section on energy consumption inner core component four edges of a wing can be fitted tightly, thus the more many ripple flexing of operative constraint in responsive to axial force bottom flange; Between oblique every two edge of a wing inner side edges be welded near cross inner core plates end of gusset plate, and the starting point of gusset plate starts from energy consumption inner core component bellend inside, and terminal is positioned at buckling-restrained components interior, prevents energy consumption inner core component changeover portion premature failure.Because buckling-restrained parts define a coffin by flap and infill panel, reliably can retrain four top flanges of energy consumption inner core component, thus the constraint realized whole energy consumption inner core component flexing, and constraint component does not have required precision to energy consumption inner core component chamfering place, energy consumption inner core component can be made up of Plate Welding or shaped steel assembling as required, and without the need to doing any chamfering and smoothing processing, so both supplement the kind of existing curvature-prevention support component, the section form of restraining tube, in turn simplify the processing to component.Above-mentioned thinking is equally applicable to T-shaped energy consumption inner core component.
The present invention has following beneficial effect:
1. by flap and infill panel or flap, steel, dull and stereotyped and infill panel forms a constraint space to buckling-restrained parts, only retrain the edge of a wing of energy consumption inner core component or 1/4 ~ 1/2 of web end, compare the buckling restrained brace of comprehensive constraint energy consumption inner core component, while the whole and part flexing ensureing reliable constraint energy consumption inner core component, without the need to doing any chamfering and smoothing processing to energy consumption inner core component and restraining tube parts, therefore can simplify the manufacturing procedure of component, avoid the techniques such as chamfering to buckling restrained brace performance adverse effect.
2. gusset plate is fixed in the energy consumption inner core component edge of a wing or web in root 1/2 place, the relative starting point in one end is positioned at energy consumption inner core component expanding reach, one end relative end is positioned at buckling-restrained components interior, its effect is equivalent to the area adding energy consumption inner core component changeover portion, can prevent changeover portion from surrendering too early on the one hand, the processing of changeover portion can be simplified on the other hand, make energy consumption inner core component can make simple two-part, thus simplify energy consumption inner core component cutting processing.
3. buckling-restrained parts only need to retrain the constraint of the energy consumption inner core component edge of a wing or web end, the width of this constraint is only 1/4 ~ 1/2 of the edge of a wing or web extension, and gusset plate is fixed in the edge of a wing or web in root 1/2 place, the buckling-restrained parts in periphery like this and gusset plate spatially can not produce conflict, peripheral buckling-restrained parts can make simple uniform section form, reduce further the difficulty of buckling restrained brace processing, improve its production capacity.
4. adopt all steel restraining tube cross section, avoid concrete wet trade, all steel beam column all can at produce in factory, and machining accuracy more easily controls.
5. energy consumption inner core component can need to select section form and cross-sectional sizes flexibly according to bearing capacity, supplements the kind of existing buckling-restrained bracing member and the section form of restraining tube, may be used for the buckling restrained brace of large bearing capacity.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the present embodiment 1 energy consumption inner core component;
Fig. 2 is the schematic diagram after the present embodiment 1 gusset plate is assembled into energy consumption inner core component;
Fig. 3 is the A-A sectional view of Fig. 2;
Fig. 4 is the B-B sectional view of Fig. 2;
Fig. 5 is the present embodiment 1 STRUCTURE DECOMPOSITION figure;
Fig. 6 is the present embodiment 1 structure chart;
Fig. 7 is the C-C sectional view of Fig. 6;
Fig. 8 is the D-D sectional view of Fig. 6;
Fig. 9 is the cross sectional representation of the present embodiment 2;
The cross sectional representation of the present embodiment 3 of Figure 10.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention will be further described.
Embodiment 1
As shown in Fig. 1 ~ 8: a kind of inclined paralled plates formula buckling restrained brace, comprise the buckling-restrained portion 3 of energy consumption inner core component 1, gusset plate 2 and uniform section; The end expanding section 1-2 expansion of described energy consumption inner core component 1 so that area are greater than middle surrender section 1-1 and connect for component; Described gusset plate 2 is fixed in energy consumption inner core component 1 edge of a wing or web in root 1/2 place, affixed relative starting point along energy consumption inner core component 1 length direction is positioned at energy consumption inner core component 1 end expanding section 1-2, it is inner that relative end is positioned at the buckling-restrained parts 3 of uniform section, this gusset plate is equivalent to play the effect being connected surrender section 1-1 and end expanding section 1-2 in the middle of energy consumption inner core plates 1, can prevent the changeover portion between two sections from surrendering too early and simplify component processing; Described energy consumption inner core component 1 is dagger.Described gusset plate 2 is that steel is dull and stereotyped.The buckling-restrained parts 3 of uniform section remain unchanged along energy consumption inner core component 1 length direction section form, assembled by bolt by four flap 3-1 and four infill panel 3-2; Described four flap 3-1 symmetry is placed on each edge of a wing or the web both sides of energy consumption inner core component 1, the constraint 1-1-1 making its flank side surface 3-1-1 and the energy consumption inner core component edge of a wing or web end extension 1/4 ~ 1/2 wide near; Described each infill panel 3-2, between the flank side surface 3-1-1 of every two flap 3-1, is positioned at each edge of a wing of energy consumption inner core component 1 or web end simultaneously, and the edge of a wing of the Thickness Ratio cross energy consumption inner core component 1 of each infill panel 3-2 is bigger; The flank side surface 3-1-1 of each flap 3-1 like this retrains the edge of energy consumption inner core component 1 edge of a wing or web jointly to the flank side surface 3-1-1 of flap 3-1 in symmetric position and corresponding infill panel 3-2; In addition, according to actual needs, the lateral surface of each flap 3-1 of buckling-restrained parts 3 is fixed with several lateral stiffening plate 3-1-3.
Embodiment 2
As shown in Figure 9: the present embodiment is identical with embodiment 1 remainder, difference is that described energy consumption inner core component 1 is T-shaped component; The buckling-restrained parts of described uniform section 3 are assembled by bolt by two flap 3-1, three dull and stereotyped 3-3 of infill panel 3-2 and block of steel; Two flap 3-2 symmetry is placed on each edge of a wing or the web both sides of energy consumption inner core component 1, the constraint 1-1-1 making its flank side surface 3-1-1 and the energy consumption inner core component edge of a wing or web end extension 1/4 ~ 1/2 wide near; The plane edge of a wing face 1-1-2 of the dull and stereotyped 3-3 of steel and energy consumption inner core component near but leave gap; Each infill panel 3-2 is between the flank side surface 3-1-1 of every two flap 3-1 or between the flank side surface 3-1-1 of flap 3-1 and the dull and stereotyped 3-3 of steel; The flank side surface 3-1-1 of each flap 3-1 like this and flank side surface 3-1-1 of flap 3-1 in symmetric position and corresponding infill panel 3-2, or the medial surface 3-1-1 of each flap 3-1 retrains the edge of energy consumption inner core component 1 edge of a wing or web jointly to the dull and stereotyped 3-3 and corresponding infill panel 3-2 of a steel; In addition, according to actual needs, the lateral surface of each flap 3-1 of buckling-restrained parts 3 is fixed with several lateral stiffening plate 3-1-3.Embodiment 3
As shown in Figure 10: the present embodiment is identical with embodiment 1 remainder, difference is that described gusset plate 2 is angle steel.
It should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.The all available prior art of each ingredient not clear and definite in the present embodiment is realized.
Claims (7)
1. an inclined paralled plates buckling restrained brace, is characterized in that: comprise the buckling-restrained parts of energy consumption inner core component, gusset plate and uniform section;
Described energy consumption inner core component comprises the end expanding section that middle surrender section is connected with for component, and the sectional area of end expanding section is greater than middle surrender section;
The buckling-restrained parts of described uniform section are arranged on the periphery of the interlude of energy consumption inner core component, the buckling-restrained parts of uniform section remain unchanged along energy consumption inner core component length direction section form, the buckling-restrained parts of uniform section comprise flap, the flank side surface of flap and the energy consumption inner core component edge of a wing or the wide constraint of web end extension 1/4 ~ 1/2 near, and leave gap;
Described gusset plate is fixed between the energy consumption inner core component edge of a wing and web, gusset plate along the position in energy consumption inner core component length direction between energy consumption inner core component ends expanding reach and the buckling-restrained parts of uniform section, its one end is located within the scope of energy consumption inner core component ends expanding reach, and the other end stretches in the buckling-restrained parts of uniform section.
2. inclined paralled plates buckling restrained brace according to claim 1, is characterized in that: described energy consumption inner core component is dagger or T-shaped component.
3. inclined paralled plates buckling restrained brace according to claim 1, is characterized in that: described gusset plate is steel flat board or angle steel.
4. inclined paralled plates buckling restrained brace according to claim 3, it is characterized in that: described gusset plate is that steel is dull and stereotyped, gusset plate is fixed in the energy consumption inner core component edge of a wing or web in root 1/2 place, middle side and the gusset plate of the flap of the buckling-restrained parts of uniform section maintain distance, and with the affixed seam keeping parallelism of gusset plate.
5. inclined paralled plates buckling restrained brace according to claim 2, is characterized in that: described energy consumption inner core component is dagger, the buckling-restrained parts of described uniform section by four flaps and four infill panels assembled by bolt; Described four flaps symmetry is placed on each edge of a wing or the web both sides of energy consumption inner core component, the constraint making its flank side surface and the energy consumption inner core component edge of a wing or web end extension 1/4 ~ 1/2 wide near; Described each infill panel between the flank side surface of every two flaps, and is positioned at each edge of a wing of energy consumption inner core component or web end, and the edge of a wing of the Thickness Ratio cross energy consumption inner core component of each infill panel is large.
6. inclined paralled plates buckling restrained brace according to claim 2, is characterized in that: described energy consumption inner core component is T-shaped component, and the buckling-restrained parts of described uniform section are assembled by bolt by two flaps, three infill panels and one piece of steel flat board; Two flaps symmetry is placed on each edge of a wing or the web both sides of energy consumption inner core component 1, the constraint making its flank side surface and the energy consumption inner core component edge of a wing or web end extension 1/4 ~ 1/2 wide near; The dull and stereotyped face, the plane edge of a wing with energy consumption inner core component of steel near, and leave gap; Each infill panel is between the flank side surface of every two flaps or between the flank side surface of flap and steel flat board.
7. inclined paralled plates buckling restrained brace according to claim 1, is characterized in that: the lateral surface of the flap of described buckling-restrained parts is fixed with several lateral stiffening plate.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410016987.6A CN103758244B (en) | 2014-01-14 | 2014-01-14 | Inclined paralled plates buckling restrained brace |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410016987.6A CN103758244B (en) | 2014-01-14 | 2014-01-14 | Inclined paralled plates buckling restrained brace |
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| CN103758244A CN103758244A (en) | 2014-04-30 |
| CN103758244B true CN103758244B (en) | 2015-11-04 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105696456A (en) * | 2016-04-07 | 2016-06-22 | 成都市大通路桥机械有限公司 | Buckling-restrained brace structure for bridge |
| CN105908854B (en) * | 2016-04-14 | 2017-11-10 | 长沙有色冶金设计研究院有限公司 | It is a kind of easily to repair energy dissipation brace structure |
| CN111042369A (en) * | 2019-12-11 | 2020-04-21 | 东北林业大学 | Visual assembled bucking restraint of examining segmentation constraint supports |
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| JP4669321B2 (en) * | 2005-05-24 | 2011-04-13 | 住金関西工業株式会社 | Buckling-restrained axial force bearing member |
| CN102943535A (en) * | 2012-09-28 | 2013-02-27 | 同济大学 | Crossed pure steel buckling restrained brace with four restrained edges and manufacturing method of crossed pure steel buckling restrained brace |
| CN203684434U (en) * | 2014-01-14 | 2014-07-02 | 东南大学 | Parallel oblique plate buckling constraining support |
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2014
- 2014-01-14 CN CN201410016987.6A patent/CN103758244B/en not_active Expired - Fee Related
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000265706A (en) * | 1999-03-19 | 2000-09-26 | Sumitomo Metal Ind Ltd | Buckling restraint brace |
| JP2002147052A (en) * | 2000-11-14 | 2002-05-22 | Shimizu Corp | Brace damper |
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| JP2005220637A (en) * | 2004-02-06 | 2005-08-18 | Univ Kanagawa | Buckling restricting brace using high polymer substance |
| JP4669321B2 (en) * | 2005-05-24 | 2011-04-13 | 住金関西工業株式会社 | Buckling-restrained axial force bearing member |
| CN201190347Y (en) * | 2008-05-14 | 2009-02-04 | 哈尔滨工业大学 | Full angle steel type buckling-restrained brace component |
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