CN107476459B - Buckling restrained brace, building and assemble method containing "-" type dissipative cell - Google Patents
Buckling restrained brace, building and assemble method containing "-" type dissipative cell Download PDFInfo
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- CN107476459B CN107476459B CN201710610894.XA CN201710610894A CN107476459B CN 107476459 B CN107476459 B CN 107476459B CN 201710610894 A CN201710610894 A CN 201710610894A CN 107476459 B CN107476459 B CN 107476459B
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
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Abstract
The invention discloses a kind of buckling restrained brace containing "-" type dissipative cell, building and assemble methods, belong to civil structural engineering and resist external force member arts.Buckling restrained brace containing "-" type dissipative cell of the invention includes telescopic interior confining part, the outer confining part being set in outside interior confining part, the "-" type dissipative cell between interior confining part and outer confining part；Interior confining part includes the first square steel tube and the second square steel tube of plug connection；"-" type dissipative cell includes 4 "-" type core plates, and the both ends of 4 "-" type core plates are bolted to respectively on four faces of the first square steel tube and the second square steel tube；The inner section of outer confining part be it is rectangular, for being coated on the outside of "-" type dissipative cell, be provided with certain interval between outer confining part and "-" type dissipative cell.Present invention disassembly and replacement are simple, and buckling-restrained component facilitates recycling.
Description
Technical field
The present invention relates to civil structural engineerings to resist external force component technology field, particularly relates to a kind of containing "-" type energy consumption
Buckling restrained brace, building and the assemble method of element.
Background technique
In multilayer or high-story house steel structure system, frame is most basic unit.It is higher that support has steel frame
Anti-side rigidity and intensity, reduce earthquake when frame lateral displacement, avoid or reduce the destruction to unstructuredness component.Buckling
The shortcomings that constraint support overcomes common support compressive buckling, improves the energy dissipation capacity of support, reduces support tension and compression carrying
The difference in size of power also makes computer simulation simpler.
Buckling restrained brace in new building structure and existing is built after 1994 Nian Beiling earthquakes and nineteen ninety-five Osaka-Kobe earthquake
Application increases considerably in terms of building the transformation of object.Various high-performance buckling restrained braces emerge one after another.But at present common bends
There are following limitations for song constraint support:
1) remove and replace cumbersome: the dissipative cell of buckling restrained brace needs to consume the energy of Seismic input in earthquake
Amount, energy consumption inevitably will cause the damage of dissipative cell perhaps fracture therefore in aftershock or subsequent coming earthquake,
The energy-dissipating and shock-absorbing effect of buckling restrained brace may have a greatly reduced quality.For existing buckling restrained brace, especially with filling
Mortar or other brittle non-metal packing materials in steel pipe realize the buckling-restrained of buckling-restrained mechanism to dissipative cell
Support, after violent earthquake, if to detect to the damage of dissipative cell, needs to remove outer confining part, this is not only operated
It is please also possible to that support can be damaged.Even if special technological means confirms that it is necessary to replace the buckling-restrained branch damaged
Support, the disassembly of existing buckling restrained brace and the installation of new buckling restrained brace may be very complicated, and reason has very much, such as
The construction operation space of buckling restrained brace end is very limited, especially the node when buckling restrained brace and frame junction
When plate is completely or partially blocked by ceiling or other non-structural elements.In addition many existing common buckling restrained braces are logical
Weld seam is crossed to be connected with the gusset plate of connection framework, replacing whole support in this way certainly will need to apply secondary welding on gusset plate,
Secondary welding is not only difficult to apply, and quality not can guarantee, and welds the fuel factor generated and will affect the mechanical property of gusset plate,
Reduce the bearing capacity and fatigue behaviour newly supported.
2) it is poor that property can be recycled: a reasonable buckling restrained brace of design should be by Damage Coutrol in dissipative cell
In constraint surrender section, and buckling-restrained component should remain elasticity, however, buckling in now many traditional buckling restrained braces
The recycling rate of waterused of confining part is very low, this is highly detrimental to the target for realizing design based on the concept of sustainable development.
Summary of the invention
The present invention provides a kind of disassembly and replacement is simple, and buckling-restrained component facilitates consuming energy containing "-" type for recycling
Buckling restrained brace, building and the assemble method of element.
In order to solve the above technical problems, present invention offer technical solution is as follows:
On the one hand, the present invention provides a kind of buckling restrained brace containing "-" type dissipative cell, as frame structure
Support, including telescopic interior confining part, the outer confining part being set in outside the interior confining part, be located at it is described it is interior about
"-" type dissipative cell between beam component and outer confining part, in which:
The interior confining part includes two length and outer cross section size the first square steel tube and the second square steel tube all the same,
First square steel tube and the second square steel tube plug connection, the end of first square steel tube and the second square steel tube away from each other are used
It is connect in frame structure；
The "-" type dissipative cell includes 4 "-" type core plates, and the both ends of 4 "-" type core plates are bolted respectively
On four faces of first square steel tube and the second square steel tube, the on both sides of the middle of the "-" type core plate has grooving/notch, shape
At the surrender section being weakened, both ends are non-compliant section not be weakened；
The inner section of the outer confining part be it is rectangular, it is described for being coated on the outside of the "-" type dissipative cell
Certain interval is provided between outer confining part and the "-" type dissipative cell.
Further, be provided with intermediate rib along its length on the outer surface of the surrender section, the outer confining part with
The intermediate rib is bolted.
Further, first square steel tube is identical with second party steel pipe sizes, first square steel tube and the second square steel
It is connected between pipe by plug connector, the plug connector is square steel tube, and circumferentially direction is provided in the middle part of the plug connector and is hung down
Directly in the rib of square steel tube plane, the outer cross section size of the plug connector is less than the inner section size of first square steel tube, described
One end of plug connector and first party steel-pipe welding or grafting, the other end are inserted into second square steel tube.
Further, the length of first square steel tube and the second square steel tube is 100~5000mm, first square steel
Spacing between pipe and the second square steel tube is 20~500mm, between the outer wall of the plug connector and the inner wall of the second square steel tube
Gap is 1~10mm, and the length that the plug connector is inserted into the second square steel tube is 20~800mm.
Further, it is provided on non-compliant section of the exterior portion and first square steel tube and second party steel pipe connecting
The bolt hole connect, described non-compliant section include be provided with bolt hole without constraint linkage section, not set bolt hole and not by it is outer about
Beam component cladding without non-compliant section of constraint and not set bolt hole and coated by outer confining part non-compliant section of constraint, it is described
Outer confining part be coated on the surrender section and constraint non-compliant section on, the surrender section for by the interior confining part and it is outer about
Section is surrendered in the constraint of beam component constraint.
Further, it is provided with non-compliant section not be weakened in the middle part of the surrender section of the "-" type core plate, in formation
Between constrain non-compliant section, the length of non-compliant section of the intermediate restraint is greater than buckling restrained brace and the carrying of design maximum tension occurs
Spacing described in when power deforms between the first square steel tube and the second square steel tube, the intermediate rib setting are non-in the wrong in the intermediate restraint
It takes in section；Non-compliant section of the constraint and without being provided with end rib along its length on non-compliant section of outer surface of constraint.
Further, the outer confining part is formed by 4 W-shaped steel plate snappings, adjacent W-shaped steel crab bolt connection, institute
Stating the gap between outer confining part and the "-" type dissipative cell is 1~5mm, is filled with soap-free emulsion polymeization material in the gap
Material.
Further, circular hole is provided in the middle part of the intermediate rib, the two sides of the circular hole are provided with slotted hole, adjacent
Bolt between two W-shaped steel plates passes through the circular hole and slotted hole, is provided with gasket between adjacent two W-shaped steels plate；The constraint
Transition region between non-compliant section, constraint surrender section and non-compliant section of intermediate restraint is that camber line, straight line or straight line add camber line.
On the other hand, the present invention provides a kind of building, contains the buckling-restrained of "-" type dissipative cell comprising above-mentioned
Support.
In another aspect, the present invention also provides a kind of assemblings of above-mentioned buckling restrained brace containing "-" type dissipative cell
Method, comprising:
Step 1: by one end of the plug connector and first party steel-pipe welding or grafting, the other end is inserted into the second square steel tube
It is interior, form the interior confining part；
Step 2: welding intermediate rib and end rib along its length on the outer surface of the "-" type dissipative cell, adjust
Spacing between first square steel tube and the second square steel tube, and being bolted without constraint linkage section by the "-" type dissipative cell
On the first square steel tube and the second square steel tube；
Step 3: the intermediate rib of the "-" type dissipative cell being connect by bolt with adjacent two W-shaped steels plate, then will
Adjacent two W-shaped steels plate is bolted two-by-two.
The invention has the following advantages:
Compared with prior art, the buckling restrained brace containing "-" type dissipative cell, building and assembling of the invention
Method is connected by screw bolts between interior confining part and "-" type dissipative cell, is easy for installation and removal, convenient for right after earthquake
"-" type dissipative cell carries out damage check and replacement；Buckling restrained brace containing "-" type dissipative cell of the invention, peace
When dress, then 4 "-" type core plates are bolted to by the first square steel tube of interior confining part and the second square steel tube plug connection
On four faces of the first square steel tube and the second square steel tube, outer confining part is finally coated on to the outside of "-" type core plate, by
, can be by damage concentration in the surrender section of "-" type core plate when drawing or being pressurized, interior confining part and outer confining part be still after earthquake
Elasticity is so kept, it is reusable, it is only necessary to replace "-" type core plate, buckling restrained brace can restore energy-dissipating and shock-absorbing function.
Detailed description of the invention
Fig. 1 is the overall structure diagram of the buckling restrained brace of the invention containing "-" type dissipative cell；
Fig. 2 is the broken away view of each component of the buckling restrained brace of the invention containing "-" type dissipative cell；
Fig. 3 is the connection schematic diagram of "-" type dissipative cell and interior confining part of the invention；
Fig. 4 is the first embodiment schematic diagram of interior confining part of the invention；
Fig. 5 is second of embodiment schematic diagram of interior confining part of the invention；
Fig. 6 is the structural schematic diagram of the plug connector of interior confining part of the invention；
Fig. 7 is the composition form schematic diagram of the plug connector of interior confining part of the invention；
Fig. 8 is the structural schematic diagram of the first square steel tube of interior confining part of the invention；
Fig. 9 is the perspective view of "-" type core plate of the invention；
Figure 10 is the top view of Fig. 9；
Figure 11 is the side view of Fig. 9；
Figure 12 is the different structure form schematic diagram of "-" type core plate of the invention；
Figure 13 is the first embodiment schematic cross-section of outer confining part of the invention, in which: (a) is 4 W-shaped steels
The schematic cross-section of plate snapping (b) is single W-shaped steel plate schematic cross-section；
Figure 14 is second of embodiment schematic cross-section of outer confining part of the invention, in which: (a) is 4 W-shaped steels
The schematic cross-section of plate snapping (b) is single W-shaped steel plate schematic cross-section；
Figure 15 is the third embodiment schematic cross-section of outer confining part of the invention, in which: (a) is 4 W-shaped steels
The schematic cross-section of plate snapping (b) is single W-shaped steel plate schematic cross-section；
Figure 16 is the schematic cross-section after the first embodiment of outer confining part of the invention is completed, in which:
(a) it to correspond to schematic cross-section at end rib, (b) to correspond to schematic cross-section at intermediate rib, (c) is cut to be corresponding at not set rib
Face schematic diagram；
Figure 17 is the hysteresis loop of test specimen A1 to A6.
Specific embodiment
To keep the technical problem to be solved in the present invention, technical solution and advantage clearer, below in conjunction with attached drawing and tool
Body embodiment is described in detail.
On the one hand, the present invention provides a kind of buckling restrained brace containing "-" type dissipative cell, as frame structure
Support, as shown in Fig. 1 to Figure 16, including telescopic interior confining part 1, the outer constraint structure being set in outside interior confining part 1
Part 2, the "-" type dissipative cell between interior confining part 1 and outer confining part 2, in which:
Interior the confining part 1 first square steel tube 1-1 and second square steel tube all the same including two length and outer cross section size
1-2, the first square steel tube 1-1 and the second square steel tube 1-2 plug connection, the first square steel tube 1-1 and the second square steel tube 1-2 are away from each other
End for being connect with frame structure, specifically, the outer end surrounding of the first square steel tube 1-1 or the second square steel tube 1-2 can be opened
Strip groove by connecting plate 1-3 or is directly connect, as shown in figure 8, the section of connecting plate 1-3 with the gusset plate of frame structure
For cross, criss-cross connecting plate 1-3 is welded on the outer end of the first square steel tube 1-1 and the second square steel tube 1-2, interior confining part
1 the first square steel tube 1-1 and the second square steel tube 1-2 can be with relative motion, after mounting on axis of support direction, it is to be ensured that bends
When song constraint is supported on by the deformation of design maximum Compressive Bearing Capacity, the first square steel tube 1-1 and the mutual of the second square steel tube 1-2 are leaned on
The close identical end of outer cross section size will not contact with each other, when being deformed by design maximum tensile bearing capacity, the first square steel
The end adjacent to each other of pipe 1-1 and the second square steel tube 1-2 will not deviate from mutually；It is worth noting that, meeting tension and compression stress
Under conditions of, the first square steel tube 1-1 and the second square steel tube 1-2 can also be rectangular tube or the steel pipe of other cross sectional shapes,
Those skilled in the art can not influence creativeness of the invention with flexible choice；In addition, design maximum tension of the invention/
Compressive Bearing Capacity is that those skilled in the art design according to the loading characteristic of specific frame structure.
"-" type dissipative cell includes 4 "-" type core plates 3, and the both ends of 4 "-" type core plates 3 are bolted to respectively
On four faces of first square steel tube 1-1 and the second square steel tube 1-2, bolt herein can be using the blind hole spiral shell for meeting design requirement
Bolt or the sufficiently long high-strength bolt of screw rod etc., the first square steel tube 1-1 and the second square steel tube 1-2 can be according to design positions and size
Open bolt hole, on the same face, the arrangement mode of bolt hole can choose side by side or stagger arrangement, the opening of bolt hole can neither make spiral shell
Bolt interacts, and cannot influence the relatively movable of the first square steel tube 1-1 and the second square steel tube 1-2, opens on parallel two faces
Hole can be consistent, and vertical two face apertures can be staggered, and concrete operations can be depending on the bolt type actually used.
The on both sides of the middle of "-" type core plate 3 has grooving/notch 4, forms the surrender section 3-1 being weakened, and both ends are not cut
Non-compliant section of weak 3-2；
The inner section of outer confining part 2 be it is rectangular, for being coated on the outside of "-" type dissipative cell, outer confining part 2
Certain interval is provided between "-" type dissipative cell.
Compared with prior art, the buckling restrained brace of the invention containing "-" type dissipative cell, interior confining part and
Be connected by screw bolts, be easy for installation and removal between "-" type dissipative cell, convenient for after earthquake to "-" type dissipative cell into
Row damage check and replacement；Buckling restrained brace containing "-" type dissipative cell of the invention, when installation, interior confining part
Then 4 "-" type core plates are bolted to the first square steel tube and second by the first square steel tube and the second square steel tube plug connection
On four faces of square steel tube, outer confining part is finally coated on to the outside of "-" type core plate, when tension or in compression, can be incited somebody to action
Damage concentration is in the surrender section of "-" type core plate, and interior confining part and outer confining part still maintain elasticity after earthquake, repeats
It utilizes, it is only necessary to replace "-" type core plate, buckling restrained brace can restore energy-dissipating and shock-absorbing function.
Further, as shown in figure 9, being preferably provided with intermediate rib 3-3 along its length on the outer surface of surrender section 3-1,
Outer confining part 2 is bolted with intermediate rib 3-3, and "-" type core plate 3 not only can be constrained in support pressure effect in intermediate rib 3-3
Inside buckling down can also limit outer confining part 2 relative to "-" type dissipative cell and biggish sliding occurs.
Further, the first square steel tube 1-1 and the second square steel tube 1-2 size preferably identical (i.e. length, thickness, outer cross section
It is identical), material is preferably also identical, as shown in Figures 4 to 6, passes through grafting between the first square steel tube 1-1 and the second square steel tube 1-2
Part 1-4 connection, plug connector 1-4 are that square steel tube, one end of plug connector 1-4 and the first square steel tube 1-1 welding or grafting, the other end are inserted
Enter in the second square steel tube 1-2, as plug connector 1-4 and the first square steel tube 1-1 grafting, is preferably provided in the middle part of plug connector 1-4
It direction and (is not needed then when welding) perpendicular to the rib 1-5 of square steel tube plane circumferentially, prevents plug connector 1-4 from sliding into first party
In steel pipe 1-1 or the second square steel tube 1-2, it is notable that the Outside Dimensions of rib 1-5 are no more than the first square steel tube 1-1 or the
The size of two square steel tube 1-2 outermosts, does not influence the installation of "-" type dissipative cell, and the outer cross section size of plug connector 1-4 is less than
The inner section size of first square steel tube 1-1 and the second square steel tube 1-2 had both guaranteed that the second square steel tube 1-2 and plug connector 1-4 can be certainly
By opposite sliding, it is effective to ensure that the first square steel tube 1-1 and the second square steel tube 1-2 play comparison to "-" type dissipative cell again
Interior effect of contraction.
Preferably, the length of the first square steel tube 1-1 and the second square steel tube 1-2 can be 100~5000mm, be installed
Afterwards, the spacing between the first square steel tube 1-1 and the second square steel tube 1-2 is 20~500mm, i.e. the first square steel tube 1-1 and second party
Design maximum tension/Compressive Bearing Capacity deformation that the distance of end steel pipe 1-2 close to each other will meet buckling restrained brace is wanted
It asks；Gap between the outer wall of plug connector 1-4 and the inner wall of the second square steel tube 1-2 is preferably 1~10mm, guarantees plug connector 1-4
It can be free to slide with the second square steel tube 1-2；First plug connector 1-4 be inserted into the length of the second square steel tube 1-2 be preferably 20~
800mm prevents buckling restrained brace in tension, and plug connector 1-4 deviates from the second square steel tube 1-2.
It is worth noting that, as shown in fig. 7, the square steel tube of plug connector 1-4 can use integrally formed steel pipe, two sides
Pipe is welded or the diversified forms such as steel plate and fashioned iron welding do not influence implementation of the invention as long as meeting design requirement.
Preferably, as shown in figure 9, being provided on the exterior portion of non-compliant section of 3-2 and the first square steel tube 1-1 and second party
The bolt hole 3-2-1, non-compliant section of 3-2 of steel pipe 1-2 connection include be provided with bolt hole 3-2-1 without constraint linkage section 3-2-2,
Not set bolt hole 3-2-1 and not by outer confining part 2 coat without constraint non-compliant section of 3-2-3 and not set bolt hole 3-2-
1 and non-compliant section of 3-2-4 of constraint for being coated by outer confining part 2, outer confining part 2 are coated on surrender section 3-1 and constrain non-bend
It takes on section 3-2-4, the dotted line in Fig. 9 is outer confining part 2 in the wrapped position of "-" type core plate 3, and left side of dotted line is no constraint
Non-compliant section of 3-2-3, right side of dotted line are non-compliant section of 3-2-4 of constraint, and surrender section 3-1 is by interior confining part 1 and outer constraint structure
Section is surrendered in the constraint that part 2 constrains.It is worth noting that, the length of non-compliant section of 3-2-4 of constraint wants long enough, in buckling-restrained branch
The constraint of endless total detachment outer confining part 2 when the deformation of design maximum tensile bearing capacity, non-compliant section of 3-2-3 of no constraint are born in support
Length it is suitable, it is ensured that when buckling restrained brace is deformed by design maximum Compressive Bearing Capacity, no constraint linkage section 3-2-2 and
Still there are distances between the end of outer confining part 2.
As an improvement of the present invention, due to the first square steel tube 1-1 of interior confining part 1 and the second square steel tube 1-2 it
Between gap, the sectional dimension of plug connector 1-4 is small, and effect of contraction is poor, at the middle part of the surrender section 3-1 of "-" type core plate 3
It is preferably provided with non-compliant section not be weakened, forms non-compliant section of 3-4 of intermediate restraint, the length of non-compliant section of 3-4 of intermediate restraint
Degree is preferably greater than buckling restrained brace and the first square steel tube 1-1 and the second square steel tube 1- when the deformation of design maximum tensile bearing capacity occurs
Spacing between 2 end close to each other, intermediate rib 3-3 are arranged on non-compliant section of 3-4 of intermediate restraint, intermediate rib 3-3
The intensity of non-compliant section of 3-4 of intermediate restraint is strengthened, the setting of intermediate restraint non-compliant section of 3-4 and intermediate rib 3-3 reduce slotting
Plastic deformation is all controlled and surrenders section in constraint by the stress intensity of "-" type dissipative cell and damage concentration degree at fitting 1-4；
Constrain non-compliant section of 3-2-4 and without constraint non-compliant section of 3-2-3 outer surface on be provided with end rib 3-5 along its length, with
Avoid constraining non-compliant section of 3-2-4 and occurring local buckling without non-compliant section of 3-2-3 of constraint, end rib 3-5 preferably extend over to
Without constraint linkage section 3-2-2, the rib height of end rib 3-5 cannot be too high, not encounter the connection bolt of outer confining part 2.
It successively includes without constraint linkage section 3-2-2, without non-compliant section of 3-2- of constraint that "-" type core plate 3, which passes through,
3, non-compliant section of 3-2-4, constraint surrender section, non-compliant section of 3-4 of intermediate restraint, non-compliant section of constraint surrender section, constraint 3- are constrained
2-4, without constraint non-compliant section of 3-2-3 and without constraint linkage section 3-2-2；When "-" type core plate 3 is processed, "-" type plate is first cut,
Then intermediate rib 3-3 and two end rib 3-5, intermediate rib 3-3 are welded and end rib 3-5 is preferably remained on the same line, end
Portion rib 3-5 is welded on non-compliant section of 3-2-4 of constraint and without on non-compliant section of 3-2-3 of constraint, it is preferred that end rib 3-5 can be fitted
When extending to without constraint linkage section 3-2-2, but cannot influence to turn bolt, the weld seam of end rib 3-5 had better not extend to about
Beam surrenders section, avoids the intensity and endurance, lesion capability of remaining influence of thermal deformation "-" type dissipative cell.
In the present invention, outer confining part 2 is preferably formed by 4 W-shaped steel plate 2-1 snappings, and adjacent W-shaped steel plate 2-1 bolt connects
It connects, it is easy to disassemble.Gap between outer confining part 2 and "-" type dissipative cell is 1~5mm, is preferably filled in the gap
Non-cohesive material, non-cohesive material can be for lubricating oil, soft glass or teflon materials etc., can also as the case may be flexibly
Selection, non-cohesive material can "-" type dissipative cell occur high-order bending deformation when, reduce "-" type dissipative cell with it is interior
Frictional force between confining part 1 and outer confining part 2.
As another improvement of the invention, circular hole 3-3-1 is provided in the middle part of intermediate rib 3-3, the two sides of circular hole 3-3-1 are excellent
Choosing is provided with slotted hole 3-3-2, and the bolt between adjacent two W-shaped steels plate 2-1 passes through circular hole 3-3-1 and slotted hole 3-3-2, prevents
The only outer bending deformation of the "-" type dissipative cell generating surface between the bolt hole on W-shaped steel plate 2-1, avoids outer confining part 2 innings
Bear bigger axial force in portion.Circular hole 3-3-1 and slotted hole 3-3-2 and outer constraint of the "-" type core plate 3 by intermediate rib 3-3
Component 2 connects, it is therefore prevented that "-" type dissipative cell bending deformation inwardly also prevents outer confining part 2 and consumes energy with "-" type
Biggish Relative sliding occurs for element, and when being bolted, intermediate rib 3-3 is corresponded at section, screw bolt passes W-shaped steel plate 2-1,
Intermediate rib 3-3 and W-shaped steel plate 2-1 can be with if the foot welding height of the intermediate rib 3-3 or end rib 3-5 of "-" type core plate 3 are higher
Increase suitable gasket 5 at intermediate rib both ends, as shown in Figure 16 (b)；Suitable gasket 5 can also be increased and decreased at end rib, such as
Shown in Figure 16 (a), screw bolt passes W-shaped steel plate 2-1, gasket 5 and W-shaped steel plate 2-1；At not set rib, also it can be set
Gasket 5, as shown in Figure 16 (c).
It is worth noting that, W-shaped steel plate 2-1 can be formed using steel plate cold bending in outer confining part 2, steel can also be used
Plate or fashioned iron are welded, and when guaranteeing by maximum pressure local buckling does not occur for the selection of the thickness of W-shaped steel plate 2-1,
It is contemplated that increasing rib appropriate on W-shaped steel plate 2-1 to improve the intensity of outer confining part, as shown in Figure 14 and Figure 15.
Further, as shown in figure 12, there are many kinds of the forms of "-" type core plate 3, non-compliant section of 3-2-4 of constraint, constraint
Transition region between surrender non-compliant section of 3-4 of section and intermediate restraint can add camber line for camber line, straight line or straight line.
On the other hand, the present invention provides a kind of building, contains the buckling-restrained of "-" type dissipative cell including above-mentioned
Support.Since structure is same as described above, details are not described herein again.
In another aspect, the present invention also provides a kind of assemblings of above-mentioned buckling restrained brace containing "-" type dissipative cell
Method, comprising:
Step 1: by one end of plug connector 1-4 and the first square steel tube 1-1 is welded or grafting (being prefabrication when welding),
The other end is inserted into the second square steel tube 1-2, interior confining part 1 is formed, between the first square steel tube 1-1 and the second square steel tube 1-2
Spacing distance and the distance that is inserted into the second square steel tube 1-2 of plug connector 1-4 to meet the maximum of buckling restrained brace and set
Count tension/Compressive Bearing Capacity deformation requirements；
Step 2: welding intermediate rib 3-3 along its length on the outer surface of "-" type dissipative cell and end rib 3-5 is (excellent
Choosing, intermediate rib 3-3 and end rib 3-5 are completed in factory process), it adjusts between the first square steel tube 1-1 and the second square steel tube 1-2
Spacing, and "-" type dissipative cell is bolted to the first square steel tube 1-1 and the second square steel without constraint linkage section 3-2-2
On pipe 1-2；
Step 3: the intermediate rib 3-3 of "-" type dissipative cell is bolted between adjacent two W-shaped steels plate 2-1,
Then adjacent two W-shaped steels plate 2-1 is bolted two-by-two.
Buckling restrained brace containing "-" type dissipative cell of the invention, it is " high-rise referring to Shanghai City engineering construction standard
The Design of Steel Structure Buildings regulation " (DG/TJ08-32-2008) (the high steel rule in abbreviation Shanghai City), " seismic design provision in building code "
(GB50011-2010) (referred to as anti-rule), Shanghai City building products recommendatory application standard " TJ buckling restrained brace application technology
Regulation " (DBJ/CT105-2011) (abbreviation TJ constraint support regulation) and " building energy-dissipating and shock-absorbing technical regulation " (JGJ297-
2013) (abbreviation damping regulation) is tested for the property test, specific as follows:
Only the anti-rule of a length of L, the high steel rule in Shanghai City and TJ constraint support regulatory requirements successively exist to test specimen for specification definition support
Each 3 strength degradations not generated more than 15% of the displacement amplitude tension and compression of L/300, L/200, L/150 and L/100；Anti- rule, damping
Regulation and TJ constraint support regulatory requirements test specimen recycle 30 intensity not generated more than 15% on the displacement amplitude of L/150 and move back
Change.
Table 1
Table 1 is the basic parameter of the buckling restrained brace containing "-" type dissipative cell, this test assumes constraint surrender
Duan overall length is 0.50 times of bearing length L, is successively applied with the 30 cycle constant amplitudes load that displacement amplitude corresponds to L/150 to test specimen A5
L/300, L/200, L/150 and L/100, every grade of 3 weeks amplification load are corresponding in turn to displacement amplitude.In constant amplitude load, tension
Strength degradation is 3.5%, and compressive strength meets the requirement within 15%.In luffing loading procedure, do not occur obviously (be more than
15%) strength and stiffness are degenerated, and code requirement is met.
In table 1, according to the regulation in U.S. norm AISC 341-16 (AISC 2016), the accumulation modeling of each test specimen is calculated
Property deformation (CPD), the suggestion lower limit value that the accumulating plastic deformation of each test specimen provides more than AISC 341-16 (AISC 2016)
200, wherein the CPD of test specimen A5 has reached 2859.
In table 1, maximum pressure Lapie's β value of each test specimen is respectively less than upper limit value 1.3 as defined in AISC 341-16, meets specification
It is required that.
Also, according to test specimen parameter in table 1, obtained hysteresis loop, in Figure 17 (a) to (f) be respectively test specimen A1 extremely
The hysteresis loop of A6, it can be seen that the hysteresis loop of each test specimen is fuller, and there is no complete bucklings, shows phase
As stable Hysteresis Behavior.In addition, the interior confining part and outer confining part in above-mentioned experimental study are in test specimen A1 into A6
It is recycled, does not occur obviously damaging always.
The above is a preferred embodiment of the present invention, it is noted that for those skilled in the art
For, without departing from the principles of the present invention, it can also make several improvements and retouch, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (10)
1. a kind of buckling restrained brace containing "-" type dissipative cell, the support as frame structure, which is characterized in that including
Telescopic interior confining part, the outer confining part being set in outside the interior confining part, be located at the interior confining part and
"-" type dissipative cell between outer confining part, in which:
The interior confining part includes two length and outer cross section size the first square steel tube and the second square steel tube all the same, described
First square steel tube and the second square steel tube plug connection, the end of first square steel tube and the second square steel tube away from each other be used for
Frame structure connection；
The "-" type dissipative cell includes 4 "-" type core plates, and the both ends of 4 "-" type core plates are bolted to institute respectively
On four faces for stating the first square steel tube and the second square steel tube, the on both sides of the middle of the "-" type core plate has grooving/notch, forms quilt
The surrender section of weakening, both ends are non-compliant section not be weakened；
The inner section of the outer confining part be it is rectangular, for being coated on the outside of the "-" type dissipative cell, it is described it is outer about
Certain interval is provided between beam component and the "-" type dissipative cell.
2. the buckling restrained brace according to claim 1 containing "-" type dissipative cell, which is characterized in that the surrender
It is provided with intermediate rib along its length on the outer surface of section, the outer confining part is bolted with the intermediate rib.
3. the buckling restrained brace according to claim 2 containing "-" type dissipative cell, which is characterized in that described first
Square steel tube is identical with second party steel pipe sizes, is connected between first square steel tube and the second square steel tube by plug connector, described
Plug connector is square steel tube, circumferentially direction is provided in the middle part of the plug connector and perpendicular to the rib of square steel tube plane, described to insert
The outer cross section size of fitting is less than the inner section size of first square steel tube, one end of the plug connector and first party steel pipe welding
It connects or grafting, the other end is inserted into second square steel tube.
4. the buckling restrained brace according to claim 3 containing "-" type dissipative cell, which is characterized in that described first
The length of square steel tube and the second square steel tube is 100~5000mm, the spacing between first square steel tube and the second square steel tube
For 20~500mm, the gap between the outer wall of the plug connector and the inner wall of the second square steel tube is 1~10mm, the plug connector
The length for being inserted into the second square steel tube is 20~800mm.
5. the buckling restrained brace according to claim 1 containing "-" type dissipative cell, which is characterized in that described non-in the wrong
Take the bolt hole for being provided on the exterior portion of section and connecting with first square steel tube and second party steel pipe, the non-compliant section of packet
Include be provided with bolt hole without constraint linkage section, not set bolt hole and not by the outer confining part coat without constraining non-bend
Section and not set bolt hole and non-compliant section of the constraint coated by outer confining part are taken, the outer confining part is coated on described bend
It takes in section and non-compliant section of constraint, the surrender section is that the constraint constrained by the interior confining part and outer confining part is surrendered
Section.
6. the buckling restrained brace according to claim 5 containing "-" type dissipative cell, which is characterized in that a word
It is provided with non-compliant section not be weakened in the middle part of the surrender section of core plate, forms non-compliant section of intermediate restraint, the centre is about
The length that non-compliant section of beam be greater than buckling restrained brace occur design maximum tensile bearing capacity deformation when described in the first square steel tube and
Spacing between second square steel tube, the intermediate rib are arranged on non-compliant section of the intermediate restraint；Non-compliant section of the constraint
It is provided with end rib along its length on the outer surface without non-compliant section of constraint.
7. the buckling restrained brace according to claim 6 containing "-" type dissipative cell, which is characterized in that it is described it is outer about
Beam component is formed by 4 W-shaped steel plate snappings, adjacent W-shaped steel crab bolt connection, the outer confining part and "-" type consumption
Gap between energy element is 1~5mm, is filled with non-cohesive material in the gap.
8. the buckling restrained brace according to claim 7 containing "-" type dissipative cell, which is characterized in that the centre
Circular hole is provided in the middle part of rib, the two sides of the circular hole are provided with slotted hole, and the bolt between adjacent two W-shaped steels plate passes through institute
Circular hole and slotted hole are stated, is provided with gasket between adjacent two W-shaped steels plate；Non-compliant section of the constraint, constraint surrender section and centre
Constraining the transition region between non-compliant section is that camber line, straight line or straight line add camber line.
9. a kind of building, which is characterized in that including any buckling containing "-" type dissipative cell of claim 1-8
Constraint support.
10. a kind of assemble method of the buckling restrained brace according to claim 8 containing "-" type dissipative cell, special
Sign is, comprising:
Step 1: by one end of the plug connector and first party steel-pipe welding or grafting, the other end is inserted into the second square steel tube,
Form the interior confining part；
Step 2: welding intermediate rib and end rib, adjustment first along its length on the outer surface of the "-" type dissipative cell
Spacing between square steel tube and the second square steel tube, and the "-" type dissipative cell is bolted to the without constraint linkage section
On one square steel tube and the second square steel tube；
Step 3: the intermediate rib of the "-" type dissipative cell is connect by bolt with adjacent two W-shaped steels plate, it then will be adjacent
Two W-shaped steel plates are bolted two-by-two.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710610894.XA CN107476459B (en) | 2017-07-25 | 2017-07-25 | Buckling restrained brace, building and assemble method containing "-" type dissipative cell |
| PCT/CN2018/092741 WO2019019849A1 (en) | 2017-07-25 | 2018-06-26 | Buckling restrained brace containing linear energy dissipation element, building and assembly method |
| US16/488,273 US10858827B2 (en) | 2017-07-25 | 2018-06-26 | Buckling-restrained brace with flat energy dissipation element, building and assembly method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710610894.XA CN107476459B (en) | 2017-07-25 | 2017-07-25 | Buckling restrained brace, building and assemble method containing "-" type dissipative cell |
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| CN107476459B true CN107476459B (en) | 2019-03-08 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10858827B2 (en) | 2017-07-25 | 2020-12-08 | Shandong University | Buckling-restrained brace with flat energy dissipation element, building and assembly method |
| CN108643671B (en) * | 2018-05-23 | 2020-07-17 | 北京工业大学 | Four-steel-pipe constraint type buckling-restrained brace with replaceable cross-shaped inner core |
| CN112695910A (en) * | 2019-10-22 | 2021-04-23 | 上海核工程研究设计院有限公司 | Self-locking assembled buckling-restrained brace for nuclear island structure |
| JP7450468B2 (en) * | 2020-06-23 | 2024-03-15 | Ｂｘカネシン株式会社 | A seismic damper device for wooden buildings, and a wooden building using the seismic damper device for wooden buildings. |
| CN112031197B (en) * | 2020-09-02 | 2021-05-14 | 福州大学 | Novel damping energy dissipater device |
| CN114182842B (en) * | 2021-12-28 | 2023-09-01 | 中交鹭建有限公司 | Buckling restrained brace adopting three-dimensional fractal function |
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