CN103758244A - Parallel inclined plate type buckling restrained brace - Google Patents
Parallel inclined plate type buckling restrained brace Download PDFInfo
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- CN103758244A CN103758244A CN201410016987.6A CN201410016987A CN103758244A CN 103758244 A CN103758244 A CN 103758244A CN 201410016987 A CN201410016987 A CN 201410016987A CN 103758244 A CN103758244 A CN 103758244A
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- 239000008358 core component Substances 0.000 claims abstract description 26
- 238000005265 energy consumption Methods 0.000 claims description 86
- 229910000831 Steel Inorganic materials 0.000 claims description 35
- 239000010959 steel Substances 0.000 claims description 35
- 239000000306 component Substances 0.000 abstract description 13
- 238000003754 machining Methods 0.000 abstract description 2
- 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
- 230000002093 peripheral effect Effects 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
- 230000004048 modification Effects 0.000 description 2
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
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- 238000007906 compression Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
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Abstract
The invention discloses a parallel inclined plate type buckling restrained brace comprising a dissipative core component, gusset plates and uniform-section buckling restrained brace components. The dissipative core component comprises a middle buckling section and an end expanding section for component connection, and the section area of the end expanding section is larger than that of the middle buckling section. The uniform-section buckling restrained brace components are arranged on the periphery of the middle section of the dissipative core component, the gusset plates are fixedly connected between the flanges of the dissipative core components and webs, and parts, along the length of the dissipative core component, of the gusset plates are located between the end expanding section of the dissipative core component and the uniform-section buckling restrained brace components. Integral and local buckling of the dissipative core component are restrained effectively, conflict with the gusset plates is avoided, the length-wise sections of the buckling restraint components are equal, polishing to angle of chamfers of the webs of the dissipative core component under restraint requirements is omitted, and thus, machining difficulty is lowered obviously.
Description
Technical field
The invention belongs to field of civil engineering, relate to for reducing a kind of buckling restrained brace of 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 machine-processed in beam hinge etc., this energy dissipation mode causes main structure body to destroy, after seriously having increased shake, repair difficulty and cost, be unfavorable for repairing after the shake of structure.From Japanese slope, celestially after the ridge earthquake of Zhen Yu U.S. north, buckling restrained brace, as a kind of energy-dissipating and shock-absorbing member of superior performance, has obtained applying fast in the developed countries of shaking such as Japan, the U.S. more, in the research of China also in developing stage.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, under little shake effect, be equivalent to common center support, to structure, provide enough lateral rigidities, under medium and larger earthquake effect, be equivalent to metal damper and dissipation energy, so not only improved the ductility of structure but also given full play to the power consumption effect of supporting, making agent structure under geological process, can not destroy or destroy less, be a kind of comparatively desirable 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, the problem of its existence has: (1) structure manufacture required precision is high, cause manufacturing cost to increase, when fluid concrete, be difficult to guarantee that the preset clearance between inner core component and peripheral constraint component meets the requirement of precision aspect especially; (2) wet trade such as fluid concrete is given to make with construction and has been brought impact, and it is large that its precision is controlled difficulty; (3) be coated with the isolated material be contained in inner core component surface and adopt epoxy resin more, kind is single, and 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 that its inner core component adopts is I-shaped, cross, T shape member etc., because there is chamfering or weld seam in the edge of a wing and the web junction of inner core component, some buckling restrained braces are for realizing the perfect laminating of restraining tube parts inner core component, the knuckle that needs chamfering or the constraint component of mechanical grinding inner core component, obviously like this can increase construction complexity, easily causes again the mechanical damage to kernel constraint component.As adopted the flexing of four the comprehensive constraint energy consumption inner core of angle steel members in prior art example (patent CN101974949B), can increase mechanical grinding operation 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 inner core component edge, smoothing processing also must be made in the edge of inner core component angle steel and the corresponding acropodium of buckling-restrained parts position, has so increased construction complexity.In addition, to inner core component, constraint may cause fitting tightly because of many ripples bending deformation of kernel confining part effect decline to these buckling-restrained parts, and then affects buckling-restrained effect.
Summary of the invention
The present invention makes the wet construction difficulties such as required precision and manufacturing cost is high, concrete in order to solve the buckling restrained brace in steel concrete restraining tube cross section or Steel concrete combination restraining tube cross section, be coated with and be contained in the single and poor durability of the isolated material kind on inner core component surface, the buckling restrained brace in all steel restraining tube cross section needs the problem of additional processing and restraining tube parts constraint reliability to the energy consumption inner core member that contains chamfering or weld seam, proposed 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 member, gusset plate and uniform section;
Surrender section and the end expanding section being connected for member in the middle of described energy consumption inner core member comprises, surrender section in the middle of the sectional area of end expanding section is greater than;
The buckling-restrained parts of described uniform section are arranged on the periphery of the interlude of energy consumption inner core member, the buckling-restrained parts of uniform section remain unchanged along energy consumption inner core member length direction section form, for retraining the whole and part flexing of energy consumption inner core member, the buckling-restrained parts of uniform section comprise flap, the wide constraint of the flank side surface of flap and the energy consumption inner core member edge of a wing or 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 member edge of a wing and web, gusset plate along the position of energy consumption inner core member 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 member is dagger or T shape member.
As preferably, described gusset plate is steel flat board or angle steel.
As preferably, described gusset plate is that steel is dull and stereotyped, and gusset plate is fixed in the energy consumption inner core member edge of a wing or web near 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 member is dagger, and the buckling-restrained parts of described uniform section are assembled by bolt by four flaps and four infill panels; Described four flap symmetries are placed on each edge of a wing or the web both sides of energy consumption inner core member, make the wide constraint of its flank side surface and the energy consumption inner core member edge of a wing or web end extension 1/4～1/2 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 member or web end, and the edge of a wing of the Thickness Ratio cross energy consumption inner core member of each infill panel is large; In the flank side surface of each flap like this and symmetric position, the flank side surface of flap and corresponding infill panel retrain the edge of the energy consumption inner core member edge of a wing or web jointly.
As preferably, described energy consumption inner core member is T shape member, and the buckling-restrained parts of described uniform section are dull and stereotyped assembled by bolt by two flaps, three infill panels and a steel; Two flap symmetries are placed on each edge of a wing or the web both sides of energy consumption inner core member 1, make the wide constraint of its flank side surface and the energy consumption inner core member edge of a wing or web end extension 1/4～1/2 near; The dull and stereotyped plane edge of a wing face with energy consumption inner core member 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; So flank side surface and the corresponding infill panel of flap in the flank side surface of each flap and symmetric position, or the flank side surface of each flap and a steel flat board and accordingly infill panel jointly retrain the edge of the energy consumption inner core member edge of a wing or web.
As preferably, the lateral surface of the flap of described buckling-restrained parts is fixed with several lateral stiffening plates.
Buckling restrained brace of the present invention is comprised of energy consumption inner core member and buckling-restrained parts.Buckling-restrained parts are positioned at the periphery of cross energy consumption inner core member interlude, assembled by four flaps and four infill panels, by controlling flap size, can fit tightly the partial cross section on four edges of a wing of energy consumption inner core member, thus more operative constraint in many ripples flexing of responsive to axial force bottom flange; Gusset plate is oblique to be welded between near every two edge of a wing inner side edges cross inner core plates end, and the starting point of gusset plate to start from energy consumption inner core member bellend inner, terminal is positioned at buckling-restrained components interior, prevents that energy consumption inner core member changeover portion from destroying too early.Because buckling-restrained parts have formed a coffin by flap and infill panel, can reliably retrain four top flanges of energy consumption inner core member, thereby realize the constraint to whole energy consumption inner core member flexing, and constraint component does not have required precision to energy consumption inner core member chamfering place, energy consumption inner core member can Plate Welding, consist of as required or shaped steel is assembled, and without doing any chamfering and smoothing processing, so both supplement the kind of existing curvature-prevention support component, the section form of restraining tube, simplified again the processing to member.Above-mentioned thinking is equally applicable to T shape energy consumption inner core member.
The present invention has following beneficial effect:
1. buckling-restrained parts are by flap and infill panel or flap, steel flat board and a constraint space of infill panel formation, only retrain 1/4～1/2 of the edge of a wing of energy consumption inner core member or web end, compare the buckling restrained brace of comprehensive constraint energy consumption inner core member, when guaranteeing the whole and part flexing of reliable constraint energy consumption inner core member, without energy consumption inner core member and restraining tube parts are done to any chamfering and smoothing processing, therefore can simplify the manufacturing procedure of member, avoid the techniques such as chamfering to buckling restrained brace performance adverse effect.
2. gusset plate is fixed in the energy consumption inner core member edge of a wing or web near in root 1/2 place, the relative starting point in one end is positioned at energy consumption inner core member expanding reach, the relative terminal in one end is positioned at buckling-restrained components interior, its effect has been equivalent to increase the area of energy consumption inner core member changeover portion, can prevent that on the one hand changeover portion from surrendering too early, can simplify the processing of changeover portion on the other hand, make energy consumption inner core member can make simple two-part, thereby simplify energy consumption inner core member cutting processing.
3. buckling-restrained parts only need to retrain the constraint of the energy consumption inner core member 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 near in root 1/2 place, so peripheral buckling-restrained parts and gusset plate spatially can not produce conflict, peripheral buckling-restrained parts can be made simple uniform section form, the difficulty that has further reduced buckling restrained brace processing, has improved its production capacity.
4. adopt all steel restraining tube cross section, avoided concrete wet trade, all steel members all can be at produce in factory, and machining accuracy is more easily controlled.
5. energy consumption inner core member can need to select flexibly section form and cross-sectional sizes according to bearing capacity, has supplemented the kind of existing buckling-restrained bracing member and the section form of restraining tube, can be 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 member;
Fig. 2 is that the present embodiment 1 gusset plate is assembled into the schematic diagram after energy consumption inner core member;
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.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the present invention will be further described.
As shown in Fig. 1～8: a kind of inclined paralled plates formula buckling restrained brace, comprises the buckling-restrained portion 3 of energy consumption inner core member 1, gusset plate 2 and uniform section; In the middle of the end expanding section 1-2 expansion of described energy consumption inner core member 1 so that area are greater than, a surrender section 1-1 connects for member; Described gusset plate 2 is fixed in energy consumption inner core member 1 edge of a wing or web near in root 1/2 place, affixed relative starting point along energy consumption inner core member 1 length direction is positioned at energy consumption inner core member 1 end expanding section 1-2, terminal is positioned at the buckling-restrained parts of uniform section 3 inside relatively, this gusset plate is equivalent to play the effect that is connected the middle surrender section 1-1 of energy consumption inner core plates 1 and end expanding section 1-2, can prevent that the changeover portion between two sections from surrendering too early and simplifying member and process; Described energy consumption inner core member 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 member 1 length direction section form, assembled by bolt by four flap 3-1 and four infill panel 3-2; Described four flap 3-1 symmetries are placed on each edge of a wing or the web both sides of energy consumption inner core member 1, make the wide constraint 1-1-1 of its flank side surface 3-1-1 and the energy consumption inner core member edge of a wing or web end extension 1/4～1/2 near; Described each infill panel 3-2, between the flank side surface 3-1-1 of every two flap 3-1, is positioned at energy consumption inner core member 1 each edge of a wing or web end simultaneously, and the edge of a wing of the Thickness Ratio cross energy consumption inner core member 1 of each infill panel 3-2 is bigger; In the flank side surface 3-1-1 of each flap 3-1 like this and symmetric position, the flank side surface 3-1-1 of flap 3-1 and corresponding infill panel 3-2 retrain the edge of energy consumption inner core member 1 edge of a wing or web jointly; 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.
As shown in Figure 9: the present embodiment is identical with embodiment 1 remainder, difference is that described energy consumption inner core member 1 is T shape member; The buckling-restrained parts 3 of described uniform section are assembled by bolt by two flap 3-1, three infill panel 3-2 and a dull and stereotyped 3-3 of steel; Two flap 3-2 symmetries are placed on each edge of a wing or the web both sides of energy consumption inner core member 1, make the wide constraint 1-1-1 of its flank side surface 3-1-1 and the energy consumption inner core member edge of a wing or web end extension 1/4～1/2 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 member 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; So flank side surface 3-1-1 and the corresponding infill panel 3-2 of flap 3-1 in the flank side surface 3-1-1 of each flap 3-1 and symmetric position, or the medial surface 3-1-1 of each flap 3-1 and a steel flat board 3-3 and accordingly infill panel 3-2 jointly retrain the edge of energy consumption inner core member 1 edge of a wing or web; 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.In the present embodiment not clear and definite each ingredient all available prior art 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 member, gusset plate and uniform section;
Surrender section and the end expanding section being connected for member in the middle of described energy consumption inner core member comprises, surrender section in the middle of the sectional area of end expanding section is greater than;
The buckling-restrained parts of described uniform section are arranged on the periphery of the interlude of energy consumption inner core member, the buckling-restrained parts of uniform section remain unchanged along energy consumption inner core member length direction section form, the buckling-restrained parts of uniform section comprise flap, the wide constraint of the flank side surface of flap and the energy consumption inner core member edge of a wing or web end extension 1/4～1/2 near, and leave gap;
Described gusset plate is fixed between the energy consumption inner core member edge of a wing and web, gusset plate along the position of energy consumption inner core member 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 member is dagger or T shape member.
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 member edge of a wing or web near 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 member is dagger, and the buckling-restrained parts of described uniform section are assembled by bolt by four flaps and four infill panels; Described four flap symmetries are placed on each edge of a wing or the web both sides of energy consumption inner core member, make the wide constraint of its flank side surface and the energy consumption inner core member edge of a wing or web end extension 1/4～1/2 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 member or web end, and the edge of a wing of the Thickness Ratio cross energy consumption inner core member 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 member is T shape member, and the buckling-restrained parts of described uniform section are dull and stereotyped assembled by bolt by two flaps, three infill panels and a steel; Two flap symmetries are placed on each edge of a wing or the web both sides of energy consumption inner core member 1, make the wide constraint of its flank side surface and the energy consumption inner core member edge of a wing or web end extension 1/4～1/2 near; The dull and stereotyped plane edge of a wing face with energy consumption inner core member 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 plates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| 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 |
|---|---|---|---|
| CN201410016987.6A CN103758244B (en) | 2014-01-14 | 2014-01-14 | Inclined paralled plates buckling restrained brace |
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| CN103758244A true CN103758244A (en) | 2014-04-30 |
| CN103758244B CN103758244B (en) | 2015-11-04 |
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| CN201410016987.6A Expired - Fee Related CN103758244B (en) | 2014-01-14 | 2014-01-14 | Inclined paralled plates buckling restrained brace |
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Cited By (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 |
| CN105908854A (en) * | 2016-04-14 | 2016-08-31 | 长沙有色冶金设计研究院有限公司 | Easy-to-repair energy consumption supporting 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 |
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| 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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Cited By (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 |
| CN105908854A (en) * | 2016-04-14 | 2016-08-31 | 长沙有色冶金设计研究院有限公司 | Easy-to-repair energy consumption supporting structure |
| CN111042369A (en) * | 2019-12-11 | 2020-04-21 | 东北林业大学 | Visual assembled bucking restraint of examining segmentation constraint supports |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103758244B (en) | 2015-11-04 |
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