CN103233590A - Buckling-restrained brace with spare cable - Google Patents
Buckling-restrained brace with spare cable Download PDFInfo
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- CN103233590A CN103233590A CN2013101745445A CN201310174544A CN103233590A CN 103233590 A CN103233590 A CN 103233590A CN 2013101745445 A CN2013101745445 A CN 2013101745445A CN 201310174544 A CN201310174544 A CN 201310174544A CN 103233590 A CN103233590 A CN 103233590A
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- 238000005265 energy consumption Methods 0.000 claims abstract description 45
- 229910000831 Steel Inorganic materials 0.000 claims description 12
- 239000010959 steel Substances 0.000 claims description 12
- 230000005540 biological transmission Effects 0.000 abstract description 11
- 230000000694 effects Effects 0.000 abstract description 3
- 230000000452 restraining effect Effects 0.000 abstract 8
- 239000002184 metal Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 230000006378 damage Effects 0.000 description 4
- 238000004873 anchoring Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000003313 weakening effect Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000015572 biosynthetic process 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
- 238000012423 maintenance Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
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Abstract
The invention discloses a buckling-restrained brace with a spare cable. The buckling-restrained brace comprises an energy-consumption inner core plate, a first connecting piece, a second connecting piece, end plates and a force transmission component. The force transmission component comprises an inner restraining force transmission component and an outer combination restraining force transmission component. One end of the inner core plate is fixed on an upper outer surface and a lower outer surface of the inner restraining force transmission component, and the other end of the inner core plate is fixed with the outer combination restraining force transmission component. At least one spare cable is arranged in the inner restraining force transmission component, the spare cable is fixed through the end plates at two ends of the outer combination restraining force transmission component, and each end plate contacts the inner restraining force transmission component and the outer combination restraining force transmission component simultaneously. On the one hand, for structures requiring controlling of residual deformation under the earthquake effect, the buckling-restrained brace with the spare cable can provide self-resetting pressure for the brace; and on the other hand, for structures of anti-collapsing design for violent earthquakes, the spare cable enters a tensioning state after the deformation of the brace exceeds a certain range under the violent earthquakes, and large follow-up rigidity is provided for the structures.
Description
Technical field
The invention belongs to field of civil engineering, relate to a kind of be used to the buckling-restrained support that reduces the influence of engineering structures earthquake disaster.
Background technology
Buckling-restrained support is a kind of novel support that has common support and metal damper dual-use function concurrently, because its stable performance, advantage such as easy to make, with low cost have obtained studying widely and using in recent years.But as a kind of metal damper, still there are some problems that have much room for improvement in buckling-restrained support.
On the one hand, because buckling-restrained support utilizes core metal plate tension and compression surrender dissipation seismic energy, support itself can produce the permanent set of accumulation, thereby structure shake back rehabilitation expense is produced appreciable impact, because the increase along with permanent set angle between deck, the maintenance cost of building can increase significantly, even greater than reconstruction expenses, reduces therefore that permanent set is one of problem that haves much room for improvement after the shake of buckling-restrained support.For this reason, the present invention can provide runback potential energy power by the standby rope of stretch-draw.In this respect, certainly the reset buckling-restrained support of existing technical examples described in publication CN101824922 B.But it is square casing from the buckling-restrained support force transferring part that resets, and square casing is of a size of setting, two square casing sizes have determined the gap of thickness and core metal plate and the square casing of core metal plate, and studies show that constraint component (as confinement sleeve) and the gap of metal sheet are the key factors of the buckling-restrained support performance of influence, and the outer combination constraint force transferring part that the present invention proposes can be selected suitable composite member according to interior constraint force transferring part, size by the control combination part forms the accurate constraint to the core metal plate, can significantly improve the performance from the buckling-restrained support that resets.
In addition, the connector of buckling-restrained support one end that resets certainly of publication CN101824922 B can only extend out from interior square casing, make the necessary perforate of corresponding end plate, weakened the integral rigidity of end plate, and the connector that extends out is size-constrained fixed because of spatial constraints, bending rigidity is little, forms to support plane of weakness, causes destroying prior to supporting itself from the ease of connection of the buckling-restrained support that resets.And the connector that the present invention proposes has been avoided the weakening of end plate and possible continuous damage.
On the other hand, when the experience violent earthquake, in a single day buckling-restrained support enters yield situation, the rigidity that supports will rapid drawdown, causes structure to form tangible weak floor, perhaps because buckling-restrained support damage accumulation ruptures deactivates, also can cause structure to form weak floor, thereby making structure have the higher risk of collapsing, therefore improve buckling-restrained support surrender or post-rift degree of safety, also is a great problem.For this reason; the present invention can make that by the length that standby rope is set standby rope participation is stressed when supporting axial deformation greater than designated value with the deposit of standby rope as rigidity, forms second protection; thereby avoid structural weak layer distortion excessive, and then cause the structural entity destruction of collapsing.
Summary of the invention
Technical problem
The present invention thereby excessive residual distortion increase shake back rehabilitation cost occurs in order to solve buckling-restrained being supported on of tradition under the geological process, perhaps cross problem low or that rupture and deactivate and cause structure weak floor to occur even collapse in big shake effect lower support surrender back rigidity, a kind of buckling-restrained support of preparing and carrying with rope is provided.
Technical scheme
The technical solution used in the present invention is:
A kind of buckling-restrained support of preparing and carrying with rope, comprise energy consumption inner core plates, first connector, second connector, end plate and force transferring part, it is characterized in that: constraint force transferring part and outer combination constraint force transferring part in described force transferring part comprises, described energy consumption inner core plates is made of an inner core plates and two end junction plates, side of each end junction plate is fixed in the surface of inner core plates one end along long side direction, the side up and down of constraint force transferring part in one end of described energy consumption inner core plates is fixed on, end in described first connector and described energy consumption inner core plates are fixed on the constraint force transferring part is fixed, and an end of described second connector and described outer combination constraint force transferring part is fixed; Described outer combination constraint force transferring part is set in the outside of described interior constraint force transferring part, be formed with the gap of 1-2mm outside between combination constraint force transferring part and the interior constraint force transferring part between [W is with 1] this constraint space of the described inner core plates of formation and the inner core plates, the other end of described inner core plates is fixing to be fixed with described second connector; Also be provided with at least one standby rope in the constraint force transferring part in described, this standby rope is fixed by the end plate that is arranged on outer combination constraint force transferring part two ends, constraint force transferring part and outer combination constraint force transferring part in each end plate contacts simultaneously.
Described outer combination constraint force transferring part is made 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, per two infill panels are positioned at the upper and lower surface of two channel-section steels, the outside of per two infill panels is cover plates, form described gap between infill panel and cover plate and the energy consumption inner core plates, retrain simultaneously in the plane of energy consumption inner core plates with the plane outside flexing.
The constraint force transferring part is assembled by bolt in the middle of described.
The side up and down of described outer combination constraint force transferring part one end has the rectangle gap, and each end junction plate stretches out the rectangle gap that is adjacent on the outer combination constraint force transferring part; The two ends of each cover plate also have a described rectangle gap.
Described first connector adopts bolt to be connected with described energy consumption inner core plates; Described second connector also adopts bolt to be 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 standby rope, end plate, first connector, second connector constitutes, described energy consumption inner core plates is made of an inner core plates and two end junction plates, side of each end junction plate is fixed in the surface of inner core plates one end along long side direction, interior constraint force transferring part is positioned at two energy consumption inner core plates inboards, the side up and down of outer combination constraint force transferring part one end has the rectangle gap, each end junction plate stretches out the rectangle gap that is adjacent on the outer combination constraint force transferring part, first connector and second connector are positioned at the two ends of outer combination constraint force transferring part outside, one end bolt of first connector and two energy consumption inner core plates, two energy consumption inner core plates are affixed with the external surface up and down of an end of the first connector bolt and interior constraint force transferring part one end, the other end bolt of second connector and two energy consumption inner core plates, second connector is affixed with an end of outer combination constraint force transferring part.Standby rope is positioned at the inside of constraint force transferring part, and every standby rope two ends connect an end plate, constraint force transferring part and outer combination constraint force transferring part in each end plate contacts simultaneously.
Beneficial effect
The present invention has following beneficial effect:
1. the present invention adopts two channel-section steels, four infill panels and two outer combination constraint force transferring parts that cover plate constitutes, and will be somebody's turn to do the outside that outer combination constraint force transferring part is enclosed within interior constraint force transferring part, form the constraint space of described inner core plates outside between combination constraint force transferring part and the interior constraint force transferring part, be formed with the gap of 1-2mm between this constraint space and the 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, can accurately retrain simultaneously in the plane of energy consumption inner core plates and flexing outside the plane, can significantly improve oneself the reset performance of buckling-restrained support.
2. the present invention adopts the outer combination constraint force transferring part of bolt pin-connected panel, be convenient to component assembly and shake back member inspection and part replacement, and can realize connecting support and structure by two end junction plates of each energy consumption inner core plates, avoid the weakening of end plate and possible continuous damage.
3. the present invention is provided with at least one standby rope in the inside of interior constraint force transferring part, and fixes by end plate, can be according to the needs of structure design, and flexible Application buckling-restrained support of the present invention realizes different functions.On the one hand, at the structure that needs to control permanent set under the geological process, support inner standby rope by pre-pretensioning, for support provides from resetting pressure, can obviously reduce the permanent set of member and structure; On the other hand, structure at the anti-design of collapsing of larger earthquake, thereby by the length that standby rope is set to be supported after distortion exceeds certain limit under the big shake standby rope enter tensile state and participate in stressedly, for structure provides bigger follow-up rigidity, can prevent the appearance of structural weak layer and collapse.Therefore, the present invention has realized the flexible Application of different designs function.
Description of drawings
Fig. 1 is that energy consumption inner core plates is made schematic diagram;
Fig. 2 is energy consumption inner core plates and interior constraint force transferring part assembling 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 standby rope and end plate assembling, first connector, second connector are assembled to member assembling and finish 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 the member installation,
Figure 16 is right-hand member end view after the member installation.
The specific embodiment
Embodiment one: shown in Fig. 1 ~ 16, the buckling-restrained support of bolt pin-connected panel double-core of preparing and carrying the usefulness rope 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 standby ropes 4, end plate 5, first connector 6, second connector 7 constitutes, described energy consumption inner core plates 2 is made of an inner core plates 2-1 and two end junction plate 2-2, each side of end junction plate 2-2 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 two energy consumption inner core plates 2 inboards, the side up and down of outer combination constraint force transferring part 3 one ends has rectangle gap 3-3-1, each end junction plate 2-2 stretches out the rectangle gap 3-3-1 that is adjacent on the outer combination constraint force transferring part, first connector 6 and second connector 7 are positioned at the two ends of outer combination constraint force transferring part 3 outsides, first connector 6 is connected by high-strength bolt with an end of two energy consumption inner core plates 2, two energy consumption inner core plates 2 are being welded by weld seam at the side of energy consumption inner core plates with an end of first connector, 6 bolts and the external surface up and down of interior constraint force transferring part 1 one ends, second connector 7 is connected by high-strength bolt with the other end of two energy consumption inner core plates 2, second connector 7 welds by weld seam at the side of second connector with an end of outer combination constraint force transferring part 3, many standby ropes 4 are positioned at the inside of constraint force transferring part 1, every standby rope 4 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, per two infill panel 3-2 are positioned at the upper and lower surface of two channel-section steel 3-1, the outside of per two infill panel 3-2 is a 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, this constraint space 8 retrains in the plane of energy consumption inner core plates 2 and the outer flexing in plane simultaneously, need not to arrange specially the flexing that constraint component retrains energy consumption inner core plates 2.Other compositions and connected mode are identical with embodiment one.
Embodiment three: shown in Fig. 1,2,9,10, present embodiment is the assembling concrete steps of the buckling-restrained support of the present invention, and is as follows:
1. the energy consumption inner core plates that has junction plate is formed in inner core plates two ends and end junction plate welding; One end of energy consumption inner core plates and the side up and down of interior constraint component have realized so that in the side edge welding of energy consumption inner core plates energy consumption inner core plates is connected with the integral body of interior constraint component.
2. the left and right sides of constraint force transferring part in two channel-section steels being placed, 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 the same plane, make end junction plate on the energy consumption inner core plates by the rectangle gap on the cover plate, by high-strength bolt two channel-section steels, four infill panels, two cover plates are connected into an integral body and are outer combination constraint force transferring part again; The gap of outer combination constraint force transferring part and interior constraint force transferring part and energy consumption inner core plates is 1-2mm, retrain simultaneously in the plane of energy consumption inner core plates with the plane outside flexing.
3. constraint force transferring part and end plate in many standby ropes being passed, if at the structure that needs to control permanent set under the geological process, need be with the end plate place anchoring at one end of standby rope, the end plate place of the other end carries out anchoring again after the stretch-draw, for support provides from resetting pressure to reduce the permanent set of member and structure; If the structure at the anti-design of collapsing of larger earthquake, need not the standby rope of stretch-draw, make between the end plate that supports an end and the standby rope and reserve some gaps in advance, then at the standby rope of two ends end plate place's anchoring, to be supported after distortion exceeds certain limit under the big shake standby rope enter tensile state, for structure provides bigger follow-up rigidity, can prevent the appearance of structural weak layer and collapse.Like this, finish the assembling of the buckling-restrained support of bolt pin-connected panel double-core of the standby rope of entire belt.
Claims (5)
1. buckling-restrained support of preparing and carrying with rope, 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: constraint force transferring part (1) and outer combination constraint force transferring part (3) in described force transferring part comprises, described energy consumption inner core plates (2) is made of an inner core plates (2-1) and two end junction plates (2-2), each side of end junction plate (2-2) is fixed in the surface of inner core plates (2-1) end along long side direction, the side up and down of constraint force transferring part (1) in one end of described energy consumption inner core plates (2) is fixed on, described first connector (5) is fixed with the end that described energy consumption inner core plates (2) is fixed on the interior constraint force transferring part (1), and described second connector (6) and described outer combination retrain an end of force transferring part (3) and fix; Described outer combination constraint force transferring part (3) is set in the outside of described interior constraint force transferring part (1), form the constraint space (8) of described inner core plates (2) outside between combination constraint force transferring part (3) and the interior constraint force transferring part (1), be formed with the gap of 1-2mm between this constraint space (8) and the inner core plates (2), the other end of described inner core plates (2) is fixing fixing with described second connector (6); In described, also be provided with at least one standby rope (4) in the constraint force transferring part (1), this standby rope (4) is fixing by the end plate (5) that is 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.
2. buckling-restrained support of preparing and carrying with rope according to claim 1, it is characterized in that: 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) constitute, each infill panel (3-2) is positioned at the centre of two channel-section steels (3-1) and two cover plates (3-3), per two infill panels (3-2) are positioned at the upper and lower surface of two channel-section steels (3-1), the outside of per two infill panels (3-2) is a cover plate (3-3), form described gap between infill panel (3-2) and cover plate (3-3) and the energy consumption inner core plates (2), retrain simultaneously in the plane of energy consumption inner core plates (2) with the plane outside flexing.
3. according to claim 2 from resetting buckling-restrained support, it is characterized in that: constraint force transferring part (3) is assembled by bolt in the middle of described.
4. buckling-restrained support of preparing and carrying with rope according to claim 1 and 2, it is characterized in that: the side up and down at described outer combination constraint force transferring part (3) two ends has rectangle gap (3-3-1), and each end junction plate (2-2) stretches out the rectangle gap (3-3-1) that is adjacent on the outer combination constraint force transferring part (3); The two ends of each cover plate also have a described rectangle gap (3-3-1).
5. buckling-restrained support of preparing and carrying with rope according to claim 1 and 2 is characterized in that: described first connector adopts bolt to be connected with described energy consumption inner core plates; Described second connector also adopts bolt to be 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 true CN103233590A (en) | 2013-08-07 |
| CN103233590B 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 |
Country Status (1)
| Country | Link |
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| CN (1) | CN103233590B (en) |
Cited By (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 |
| CN109653395A (en) * | 2019-01-29 | 2019-04-19 | 同济大学 | Two stages performance objective Self-resetting friction-type energy dissipation brace |
| 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 |
| CN115263018A (en) * | 2022-08-19 | 2022-11-01 | 北京工业大学 | Multistage-reset multistage-energy-consumption buckling-restrained brace |
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| JP2002004436A (en) * | 2000-06-15 | 2002-01-09 | Kansai Tlo Kk | Axial force member of structure |
| JP2003314080A (en) * | 2002-04-19 | 2003-11-06 | Shimizu Corp | Brace damper |
| 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 |
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2013
- 2013-05-10 CN CN201310174544.5A patent/CN103233590B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002004436A (en) * | 2000-06-15 | 2002-01-09 | Kansai Tlo Kk | Axial force member of structure |
| JP2003314080A (en) * | 2002-04-19 | 2003-11-06 | Shimizu Corp | Brace damper |
| 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 |
|---|
| 曾鹏，陈泉，王春林，孟少平: "全钢自复位屈曲约束支撑理论与数值分析", 《土木工程学报》 * |
Cited By (5)
| 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 |
| CN109653395A (en) * | 2019-01-29 | 2019-04-19 | 同济大学 | Two stages performance objective Self-resetting friction-type energy dissipation brace |
| 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 |
| CN115263018A (en) * | 2022-08-19 | 2022-11-01 | 北京工业大学 | Multistage-reset multistage-energy-consumption buckling-restrained brace |
| CN115263018B (en) * | 2022-08-19 | 2024-01-30 | 北京工业大学 | Multistage reset-multistage energy consumption buckling restrained brace |
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| Publication number | Publication date |
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| CN103233590B (en) | 2015-12-16 |
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