CN103233590B - With the buckling restrained brace of rope for subsequent use - Google Patents
With the buckling restrained brace of rope for subsequent use Download PDFInfo
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- CN103233590B CN103233590B CN201310174544.5A CN201310174544A CN103233590B CN 103233590 B CN103233590 B CN 103233590B CN 201310174544 A CN201310174544 A CN 201310174544A CN 103233590 B CN103233590 B CN 103233590B
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- force transferring
- transferring part
- inner core
- constraint force
- core plates
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- 238000005265 energy consumption Methods 0.000 claims abstract description 46
- 229910000831 Steel Inorganic materials 0.000 claims description 12
- 239000010959 steel Substances 0.000 claims description 12
- 238000013461 design Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 4
- 230000000750 progressive effect Effects 0.000 abstract description 3
- 239000002184 metal Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 238000004873 anchoring Methods 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000003313 weakening effect Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
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- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Abstract
The invention discloses a kind of buckling restrained brace with rope for subsequent use, comprise energy consumption inner core plates, the first connector, the second connector, end plate and force transferring part, force transferring part comprises interior constraint force transferring part and outer combination constraint force transferring part; One end of inner core plates is fixed on the upper outer lower face surface of interior constraint force transferring part, and the other end of inner core plates and outer combination retrain force transferring part and fix; In interior constraint force transferring part, be also provided with at least one rope for subsequent use, this rope for subsequent use is fixed by the end plate being arranged on outer combination constraint force transferring part two ends, and each end plate contacts interior constraint force transferring part and outer combination constraint force transferring part simultaneously.The present invention retrains support, on the one hand, for needing the structure controlling permanent set under geological process, can provide Self-resetting pressure for supporting; On the other hand, for the structure of larger earthquake design to resist progressive collapse, to be supported after under large shake, distortion exceeds certain limit rope for subsequent use enter tensile state, for structure provides larger follow-up rigidity.
Description
Technical field
The invention belongs to field of civil engineering, relating to a kind of buckling restrained brace for reducing the impact of engineering structures earthquake disaster.
Background technology
Buckling restrained brace is a kind of support having common support and metal damper dual-use function concurrently, due to its stable performance, the advantage such as easy to make, with low cost, obtains investigation and application widely in recent years.But as a kind of metal damper, still there are some problems had much room for improvement in buckling restrained brace.
On the one hand, because buckling restrained brace utilizes the tension and compression of core metal plate to surrender dissipation seismic energy, support itself can produce the permanent set of accumulation, thus rehabilitation expense after structure shake is made a significant impact, because along with the increase of remnants deform angle between deck, the maintenance cost of building can significantly increase, and be even greater than reconstruction expenses, after therefore reducing the shake of buckling restrained brace, permanent set is one of problem had much room for improvement.For this reason, the present invention can provide self-resetting capability by stretch-draw rope for subsequent use.In this respect, the Self-resetting buckling restrained brace of existing technical examples as described in publication CN101824922B.But its Self-resetting buckling restrained brace force transferring part is square casing, and square casing is of a size of setting, two square casing sizes determine the thickness of core metal plate and the gap of core metal plate and square casing, and research shows that constraint component (as confinement sleeve) and the gap of metal sheet are the key factors affecting buckling restrained brace performance, and the outer combination constraint force transferring part that the present invention proposes can select suitable composite member according to interior constraint force transferring part, the exact constrain to core metal plate is formed by the size of control group component, the performance of Self-resetting buckling restrained brace can be significantly improved.
In addition, the connector of Self-resetting buckling restrained brace one end of publication CN101824922B can only extend out from interior square casing, make the necessary perforate of corresponding end plate, weaken the integral rigidity of end plate, and the connector extended out because of space constraint size-constrained fixed, bending rigidity is little, is formed and supports plane of weakness, causes the connection of Self-resetting buckling restrained brace easily to destroy prior to supporting itself.And the connector that the present invention proposes avoids weakening to end plate and possible continuous damage.
On the other hand, when experiencing violent earthquake, buckling restrained brace is once enter yield situation, the rigidity supported will rapid drawdown, causes structure to form obvious weak floor, or deactivates due to the fracture of buckling restrained brace damage accumulation, also structure can be caused to form weak floor, thus make structure there is higher risk of collapsing, therefore improving buckling restrained brace surrender or post-rift degree of safety, is also a great problem.For this reason; the present invention using the deposit of rope for subsequent use as rigidity, can making to participate in stressed when supporting rope for subsequent use when axial deformation is greater than designated value by the length arranging rope for subsequent use, forming second protection; thus it is excessive to avoid structural weak layer to be out of shape, and then cause structural entity collapse.
Summary of the invention
technical problem
Under geological process, excessive residual distortion is there is thus increases the rear rehabilitation cost of shake in the present invention in order to solve traditional buckling restrained brace, or at large shake effect lower support post-yield stiffness too low or fracture deactivate and cause structure to occur the problem that weak floor even collapses, provide a kind of buckling restrained brace with rope for subsequent use.
technical scheme
The technical solution used in the present invention is:
A kind of buckling restrained brace with rope for subsequent use, comprise energy consumption inner core plates, first connector, second connector, end plate and force transferring part, it is characterized in that: described force transferring part comprises interior constraint force transferring part and outer combination constraint force transferring part, described energy consumption inner core plates is made up of an inner core plates and two end junction plates, junction plate side in each end is fixed in the surface of inner core plates one end along long side direction, one end of described energy consumption inner core plates is fixed on the upper and lower side of interior constraint force transferring part, one end that described first connector and described energy consumption inner core plates are fixed on interior constraint force transferring part is fixed, the second described connector and described outer one end retraining force transferring part of combining are fixed, described outer combination constraint force transferring part is set in the outside of described interior constraint force transferring part, combine the gap being formed with 1-2mm between [W is with 1] this constraint space and the inner core plates forming described inner core plates between constraint force transferring part and interior constraint force transferring part outside, the other end of described inner core plates is fixing to be fixed with described second connector, in described interior constraint force transferring part, be also provided with at least one rope for subsequent use, this rope for subsequent use is fixed by the end plate being arranged on outer combination constraint force transferring part two ends, and each end plate contacts interior constraint force transferring part and outer combination constraint force transferring part simultaneously.
Described outer combination constraint force transferring part is made up of two channel-section steels, four infill panels and two cover plates, each infill panel is positioned at the centre of two channel-section steels and two cover plates, every two infill panels are positioned at the upper and lower surface of two channel-section steels, the outside of every two infill panels is cover plates, infill panel and form described gap between cover plate and energy consumption inner core plates, peaceful out-of-plane buckling in the plane simultaneously retraining energy consumption inner core plates.
Described intermediate restraint force transferring part is assembled by bolt.
The upper and lower side of described outer combination constraint force transferring part one end has rectangle gap, and each end junction plate stretches out the rectangle gap that outer combination constraint force transferring part is adjacent; The two ends of each cover plate also have the rectangle gap described in.
The first described connector and described energy consumption inner core plates adopt bolt to be fixedly connected with; The second described connector also adopts bolt to be fixedly connected with described energy consumption inner core plates.
The present invention supports by two energy consumption inner core plates, interior constraint force transferring part, outer combination constraint force transferring part, at least one rope for subsequent use, end plate, first connector, second connector is formed, described energy consumption inner core plates is made up of an inner core plates and two end junction plates, junction plate side in each end is fixed in the surface of inner core plates one end along long side direction, interior constraint force transferring part is positioned at inside two energy consumption inner core plates, the upper and lower side of outer combination constraint force transferring part one end has rectangle gap, each end junction plate stretches out the rectangle gap that outer combination constraint force transferring part is adjacent, first connector and the second connector are positioned at the two ends of outer combination constraint force transferring part outside, one end bolt of the first connector and two energy consumption inner core plates, two energy consumption inner core plates with one end of the first connector bolt and the upper outer lower face surface of interior constraint force transferring part one end affixed, the other end bolt of the second connector and two energy consumption inner core plates, second connector and outer one end retraining force transferring part of combining affixed.Rope for subsequent use is positioned at the inside of constraint force transferring part, and every root rope two ends for subsequent use connect an end plate, and each end plate contacts interior constraint force transferring part and outer combination constraint force transferring part simultaneously.
beneficial effect
The present invention has following beneficial effect:
1. the present invention adopts two channel-section steels, the outer combination constraint force transferring part that four infill panels and two cover plates are formed, and this outer combination constraint force transferring part is enclosed within the outside of interior constraint force transferring part, the constraint space of described inner core plates is formed outside between combination constraint force transferring part and interior constraint force transferring part, the gap of 1-2mm is formed between this constraint space and inner core plates, outer combination constraint force transferring part and interior constraint force transferring part not only play the effect of transmission member internal force, simultaneously can peaceful out-of-plane buckling in the plane of exact constrain energy consumption inner core plates, the performance of Self-resetting buckling restrained brace can be significantly improved.
2. the present invention adopts the outer combination constraint force transferring part of bolt pin-connected panel, be convenient to component assembly and component inspection and part replacement after shaking, and can realize connecting support and structure by two end junction plates of each energy consumption inner core plates, avoid the weakening to end plate and possible continuous damage.
3. the present invention is provided with at least one rope for subsequent use in the inside of interior constraint force transferring part, and is fixed by end plate, can according to the needs of structure design, and flexible Application buckling restrained brace of the present invention, realizes different functions.On the one hand, for needing the structure controlling permanent set under geological process, supporting inner rope for subsequent use by pre-pretensioning, providing Self-resetting pressure for supporting, obviously can reduce the permanent set of component and structure; On the other hand, for the structure of larger earthquake design to resist progressive collapse, by length that rope for subsequent use is set to be supported after under large shake, distortion exceeds certain limit rope for subsequent use enter tensile state thus participate in stressed, for structure provides larger follow-up rigidity, the appearance of structural weak layer can be prevented and collapse.Therefore, present invention achieves the flexible Application of different designs function.
Accompanying drawing explanation
Fig. 1 is that energy consumption inner core plates makes schematic diagram;
Fig. 2 is that energy consumption inner core plates and interior constraint force transferring part assemble schematic diagram,
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 C-C sectional view of Fig. 2;
Fig. 6 is the independent assembling schematic diagram of outer combination constraint force transferring part,
Fig. 7 is the D-D sectional view of Fig. 6,
Fig. 8 is the E-E sectional view of Fig. 6;
Fig. 9 is the assembling schematic diagram of outer combination constraint force transferring part and internal part;
Figure 10 is that rope for subsequent use and end plate assembling, the first connector, the second connector are assembled to component installaiton and complete schematic diagram,
Figure 11 is the F-F sectional view of Figure 10,
Figure 12 is the G-G sectional view of Figure 10,
Figure 13 is the H-H sectional view of Figure 10;
Figure 14 is the I portion enlarged diagram of Figure 12;
Figure 15 is left end end view after Components installation completes,
Figure 16 is right-hand member end view after Components installation completes.
Detailed description of the invention
Embodiment one: as shown in Fig. 1 ~ 16, the bolt pin-connected panel double-core buckling restrained brace of the band rope for subsequent use of present embodiment is by two energy consumption inner core plates 2, interior constraint force transferring part 1, outer combination constraint force transferring part 3, many ropes 4 for subsequent use, end plate 5, first connector 6, second connector 7 is formed, described energy consumption inner core plates 2 is made up of an inner core plates 2-1 and two end junction plate 2-2, each end junction plate 2-2 side is welded in the surface of inner core plates 2-1 one end by weld seam along long side direction, interior constraint force transferring part 1 is positioned at inside two energy consumption inner core plates 2, the upper and lower side of outer combination constraint force transferring part 3 one end has rectangle gap 3-3-1, each end junction plate 2-2 stretches out the rectangle gap 3-3-1 that outer combination constraint force transferring part is adjacent, first connector 6 and the second connector 7 are positioned at the two ends of outer combination constraint force transferring part 3 outside, first connector 6 is connected by high-strength bolt with one end of two energy consumption inner core plates 2, two energy consumption inner core plates 2 are welded by weld seam at the side of energy consumption inner core plates with the upper outer lower face surface of interior constraint force transferring part 1 one end in the one end with the first connector 6 bolt, second connector 7 is connected by high-strength bolt with the other end of two energy consumption inner core plates 2, second connector 7 is welded by weld seam at the side of the second connector with outer one end retraining force transferring part 3 of combining, many ropes 4 for subsequent use are positioned at the inside of constraint force transferring part 1, every root rope 4 for subsequent use two ends connect an end plate 5, constraint force transferring part 1 and outer combination constraint force transferring part 3 in each end plate 5 contacts simultaneously.
Embodiment two: as shown in Figure 6, the shape of each infill panel 3-2 of present embodiment is corresponding with the side edge shape of each energy consumption inner core plates 2, each infill panel 3-2 is positioned at the centre of two channel-section steel 3-1 and two cover plate 3-3, every two infill panel 3-2 are positioned at the upper and lower surface of two channel-section steel 3-1, the outside of every two infill panel 3-2 is cover plate 3-3, the gap of infill panel 3-2 and cover plate 3-3 and energy consumption inner core plates 2 is about 1-2mm, this gap just in time forms the constraint space 8 of inner core plates 2, see Figure 14, peaceful out-of-plane buckling in the plane that this constraint space 8 retrains energy consumption inner core plates 2 simultaneously, without the need to arranging the flexing of constraint component constraint energy consumption inner core plates 2 specially.Other composition and connected mode identical with embodiment one.
Embodiment three: as shown in Fig. 1,2,9,10, the present embodiment is the assembling concrete steps of buckling restrained brace of the present invention, as follows:
1. inner core plates two ends are welded with end junction plate, form the energy consumption inner core plates with junction plate; One end of energy consumption inner core plates is welded in the side edge of energy consumption inner core plates with the upper and lower side of interior constraint component, so achieves the integrated connection of energy consumption inner core plates and interior constraint component.
2. two channel-section steels are placed in the left and right sides of interior constraint force transferring part, spacing 1-2mm, four block filling plates are placed on the top, the edge of a wing of each channel-section steel respectively, then cover plate is placed on two infill panels in same plane, make end junction plate in energy consumption inner core plates by the rectangle gap on cover plate, then by high-strength bolt, two channel-section steels, four infill panels, two cover plates are connected into an entirety and are outer combination constraint force transferring part; Outer combination constraint force transferring part and the gap of interior constraint force transferring part and energy consumption inner core plates are 1-2mm, peaceful out-of-plane buckling in the plane simultaneously retraining energy consumption inner core plates.
3. many ropes for subsequent use are passed interior constraint force transferring part and end plate, if for needing the structure controlling permanent set under geological process, need rope for subsequent use end plate place anchoring at one end, the end plate place of the other end carries out anchoring again after stretch-draw, provides Self-resetting pressure to reduce the permanent set of component and structure for supporting; If for the structure of larger earthquake design to resist progressive collapse, without the need to stretch-draw rope for subsequent use, make to reserve some gaps in advance between the end plate of support one end and rope for subsequent use, then at two ends end plate place anchoring rope for subsequent use, to be supported after under large shake, distortion exceeds certain limit rope for subsequent use enter tensile state, for structure provides larger follow-up rigidity, the appearance of structural weak layer can be prevented and collapse.Like this, the assembling of the bolt pin-connected panel double-core buckling restrained brace of whole band rope for subsequent use is completed.
Claims (2)
1. the buckling restrained brace of a band rope for subsequent use, comprise energy consumption inner core plates (2), first connector (6), second connector (7), end plate (5) and force transferring part, it is characterized in that: described force transferring part comprises interior constraint force transferring part (1) and outer combination constraint force transferring part (3), described energy consumption inner core plates (2) is made up of an inner core plates (2-1) and two end junction plates (2-2), side, one, each end junction plate (2-2) is fixed in the surface of inner core plates (2-1) one end along long side direction, one end of described energy consumption inner core plates (2) is fixed on the upper and lower side of interior constraint force transferring part (1), described first connector (6) and described energy consumption inner core plates (2) are fixed on the one end on interior constraint force transferring part (1), described the second connector (7) combine one end of retrain force transferring part (3) with described and fixes outward, described outer combination constraint force transferring part (3) is set in the outside of described interior constraint force transferring part (1), the constraint space (8) of described energy consumption inner core plates (2) is formed outside between combination constraint force transferring part (3) and interior constraint force transferring part (1), be formed with the gap of 1-2mm between this constraint space (8) and inner core plates (2-1), the other end of described inner core plates (2-1) and described the second connector (7) are fixed, at least one rope for subsequent use (4) is also provided with in described interior constraint force transferring part (1), this rope for subsequent use (4) is fixed by the end plate (5) being arranged on outer combination constraint force transferring part (3) two ends, constraint force transferring part (1) and outer combination constraint force transferring part (3) in each end plate (5) contacts simultaneously, described outer combination constraint force transferring part (3) is by two channel-section steels (3-1), four infill panels (3-2) and two cover plates (3-3) are formed, each infill panel (3-2) is positioned at the centre of two channel-section steels (3-1) and two cover plates (3-3), every two infill panels (3-2) are positioned at the upper and lower surface of two channel-section steels (3-1), the outside of every two infill panels (3-2) is a cover plate (3-3), infill panel (3-2) and form described gap between cover plate (3-3) and energy consumption inner core plates (2), peaceful out-of-plane buckling in the plane simultaneously retraining energy consumption inner core plates (2), the upper and lower side at described outer combination constraint force transferring part (3) two ends has rectangle gap (3-3-1), and the rectangle gap (3-3-1) that outer combination constraint force transferring part (3) is adjacent is stretched out in each end junction plate (2-2), the two ends of each cover plate also have the rectangle gap (3-3-1) described in.
2. the buckling restrained brace of band according to claim 1 rope for subsequent use, is characterized in that: the first described connector and described energy consumption inner core plates adopt bolt to be fixedly connected with; The second described connector also adopts bolt to be fixedly connected with described energy consumption inner core plates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310174544.5A CN103233590B (en) | 2013-05-10 | 2013-05-10 | With the buckling restrained brace of rope for subsequent use |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310174544.5A CN103233590B (en) | 2013-05-10 | 2013-05-10 | With the buckling restrained brace of rope for subsequent use |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103233590A CN103233590A (en) | 2013-08-07 |
| CN103233590B true CN103233590B (en) | 2015-12-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310174544.5A Expired - Fee Related CN103233590B (en) | 2013-05-10 | 2013-05-10 | With the buckling restrained brace of rope for subsequent use |
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| CN (1) | CN103233590B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106812366A (en) * | 2017-03-05 | 2017-06-09 | 北京工业大学 | A kind of assembled Self-resetting energy dissipation brace structure |
| CN109653395B (en) * | 2019-01-29 | 2020-07-28 | 同济大学 | Two-stage performance target self-resetting friction type energy dissipation support |
| CN112878529A (en) * | 2021-03-25 | 2021-06-01 | 大连理工大学 | Limiting type complex-stiffness assembled buckling restrained brace and using method |
| CN115263018B (en) * | 2022-08-19 | 2024-01-30 | 北京工业大学 | Multistage reset-multistage energy consumption buckling restrained brace |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050257490A1 (en) * | 2004-05-18 | 2005-11-24 | Pryor Steven E | Buckling restrained braced frame |
| CN101798851A (en) * | 2010-04-26 | 2010-08-11 | 哈尔滨工业大学 | Combined steel pipe-encased concrete type buckling-restrained brace member |
| CN203361391U (en) * | 2013-05-10 | 2013-12-25 | 东南大学 | Buckling restrained brace with standby cable |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002004436A (en) * | 2000-06-15 | 2002-01-09 | Kansai Tlo Kk | Axial force member of structure |
| JP3820520B2 (en) * | 2002-04-19 | 2006-09-13 | 清水建設株式会社 | Brace damper |
-
2013
- 2013-05-10 CN CN201310174544.5A patent/CN103233590B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050257490A1 (en) * | 2004-05-18 | 2005-11-24 | Pryor Steven E | Buckling restrained braced frame |
| CN101798851A (en) * | 2010-04-26 | 2010-08-11 | 哈尔滨工业大学 | Combined steel pipe-encased concrete type buckling-restrained brace member |
| CN203361391U (en) * | 2013-05-10 | 2013-12-25 | 东南大学 | Buckling restrained brace with standby cable |
Non-Patent Citations (1)
| Title |
|---|
| 全钢自复位屈曲约束支撑理论与数值分析;曾鹏，陈泉，王春林，孟少平;《土木工程学报》;20130430;第46卷;正文第22页第1-5段及图7、8 * |
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| CN103233590A (en) | 2013-08-07 |
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Granted publication date: 20151216 |