CN106639464B - A kind of end has the buckling induction support of oblique screw type induction unit - Google Patents
A kind of end has the buckling induction support of oblique screw type induction unit Download PDFInfo
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- CN106639464B CN106639464B CN201611020984.5A CN201611020984A CN106639464B CN 106639464 B CN106639464 B CN 106639464B CN 201611020984 A CN201611020984 A CN 201611020984A CN 106639464 B CN106639464 B CN 106639464B
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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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- Vibration Prevention Devices (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
The invention discloses a kind of ends, and there is the buckling of oblique screw type induction unit to induce support, including confinement section and energy consumption section, it further include a support flat segments, the section that consumes energy setting is made of at least one oblique screw type induction unit along the axis direction of support in the support flat segments both ends, the section that consumes energy；Oblique screw type induction unit is diagonally to be arranged successively to form the space body that a section is helix by m oblique screw type subelements, and the oblique screw type subelement is space structure made of two pieces of triangular plates as being located in plane fold.Buckling induction support of the present invention, under small shake effect, the induction support of this buckling keeps elasticity, and in middle shake or big shake effect, buckling induction support enters yielding stage, and good hysteretic energy performance can play the effect of damper again.Compared with traditional buckling restrained brace, present invention decreases Contraction in Site workload, energy conservation and environmental protections.
Description
Technical field
The invention belongs to building structure technology fields, have oblique screw type induction unit more particularly to a kind of end
Buckling induction support, suitable for steel construction or concrete structure with buckling restrained brace.
Background technique
In steel construction or reinforced concrete structure use process, common support compression can generate buckling phenomenon, work as branch
After supportting compressive buckling, rigidity and bearing capacity are drastically reduced.Under earthquake or wind action, the internal force of support is being pressurized and tension two
Back and forth change under kind state.When support gradually fades to tension state by the state of buckling, the internal force and rigidity of support are close to
Zero.Thus common support Hysteresis Behavior under course under cyclic loading is poor.To solve common support compressive buckling and hysteresis
Can difference problem, casing is set outside support, constrains the compressive buckling of support, constitute buckling restrained brace only core plate and other
Component connection, suffered load are all undertaken by core plate, and outer sleeve and packing material only constrain core plate compressive buckling, and core plate is made to exist
Tension and by pressure can enter surrender, thus, the Hysteresis Behavior of buckling restrained brace is excellent.Buckling restrained brace on the one hand can
It, can be on the other hand with the energy dissipation capacity of metal damper to avoid the defect of common support tension and compression bearing capacity significant difference
" fuse " is served as in the structure, so that main structure is substantially in elastic range.Therefore, the application of buckling restrained brace,
Anti-seismic performance of traditional braced frame under middle shake and big shake can be improved comprehensively.But traditional buckling restrained brace is usually adopted
With steel and coagulation local soil type at restraining tube, it is high to lead to make precision prescribed, from great and difficulty of construction is big, to core cell sheet
Body promotes it and is very limited with use scope there are larger additional load.
Applicant proposes a kind of buckling control of the end with duplex pyramid type energy consumption unit on June 1st, 2016
The buckling for supporting (application No. is 201610380805.2) and a kind of end to have staggeredly pyramid energy consumption unit controls support
The basic energy consumption unit of (application No. is 201610384216.1) is pyramid, pyramid energy consumption unit be it is non-rigid can
Exhibition；So buckling control support is larger by the difficulty of high-order buckling mode energy consumption.Applicant proposes one on June 1st, 2016
Kind end has the energy-dissipating type buckling restrained brace (application No. is 201610383430.5) and one kind of symmetrical initial imperfection unit
It is fixed that end, which has the geometric configuration of the buckling control support (application No. is 201610380804.8) of brilliant energy consumption unit,
, design flexibility is small.And construction, the plate thickness of unit at folding line etc. that consume energy in above-mentioned support is consistent at non-folding line, it is unfavorable
In the generation plastic hinge at folding line.
Summary of the invention
The technical problem to be solved by the present invention is in view of the deficiency of the prior art, and provide a kind of end tool
There is the energy-dissipating type buckling induction support of oblique screw type induction unit.The induction unit can induce support that high order mode occurs and bend
Clothes avoid support that complete buckling occurs to early, and in four folding line type of varied angle induction unit between the aspect adjacent fold score of section
Angle is not identical, can more give full play to the plastic property of unit, while the flat segments being connected with this element can guarantee support again
Axial rigidity, have good bearing capacity.
Technical solution: to achieve the above object, the technical solution adopted by the present invention are as follows:
A kind of end has the buckling induction support of oblique screw type induction unit, including confinement section and energy consumption section, special
Sign is: further including a support flat segments, the energy consumption section setting is at the support flat segments both ends, in the another of the energy consumption section
One end setting confinement section, energy consumption section is by least one oblique screw type induction unit along the axis direction group of support
At, while by the way that one perpendicular to axis direction and excessively oblique screw type induces the cross section on one vertex of subelement, make the Duan Duan that consumes energy
All sides in portion are in the same plane；The described oblique screw type induction unit be by m oblique screw type subelements diagonally according to
Secondary arrangement forms the space body that a section is helix, and the helix is projected to from axial direction perpendicular to axis direction
Number of edges on section is m-1, and m is the integer more than or equal to 3；The oblique screw type subelement is by two pieces in plane
Space structure made of triangular plate folds, planar at parallelogram, two pieces of set squares are respectively two pieces of triangular plates
Triangular plate one and triangular plate two, wherein the common edge of triangular plate one and triangular plate two is valley line；Triangular plate along
Valley line is folded inward, and the angle being folded inward between the exterior normal for referring to adjacent triangular plate becomes smaller；The helix
Starting point oblique screw type induction one vertex of subelement and helix terminal point oblique screw type induce subelement one
Vertex is overlapped.
The end restraint section is made of regular polygon steel plate, the short girder steel of T-type and connecting plate, and regular polygon steel plate is welded on
Energy consumption section end, two short girder steels of T-type and regular polygon steel plate are welded to connect, and connecting plate is clipped among two short girder steels of T-type, even
Fishplate bar is connect with the short girder steel of T-type with high-strength bolt, and the number of edges of the steel plate is more than or equal to 3.
The support flat segments are made of the steel pipe that section is regular polygon and regular polygon steel plate, the weldering of regular polygon steel plate
It connects in the end of the steel pipe of equilateral polygon section, the section that consumes energy and regular polygon steel plate are welded to connect, the number of edges of the steel tube section
Also for more than or equal to 3.
Energy consumption section hole-opening at all folding lines, the hole diameter are d, and d is equal to plate thickness；Hole it
Between distance be equal, described distance be equal to 5 times of hole diameters.
The utility model has the advantages that
There is a kind of end of the present invention buckling of oblique screw type induction unit to induce support, by end restraint section, energy consumption
Section and support flat segments are constituted.Unit is induced using oblique screw type in support, there are more clear advantages: one, oblique spiral shell
Rotation type induces the torsion stiffness very little of unit, causes to support the movement that easily twists, to avoid supporting premature generation whole
The folding line that body unstability and twist motion will lead to circumferential screw type induction unit is surrendered, to generate plastic deformation to consume
Can, make support that there is good energy dissipation capacity and axial carrying capacity.Two, there is oblique screw type induction unit using end
Buckling induction support, the oblique angle of unit can be not only induced by changing screw type, arranges that component in the cross-direction
Flexibly, moreover it is possible to enhance the energy dissipation capacity of component.Three, the induction unit passes through the pre-set folding line formed by crest line and valley line
The hole-opening at all folding lines simultaneously is more easier to induce to be supported under geological process that preset high order mode buckling occurs,
Prevent component from complete buckling occurs to early.Four, the support flat segments combined with buckling induction section, it is ensured that support required
Axial rigidity.Oblique screw type in section is induced to induce the number of unit by the length and buckling that change support flat segments, it can be with
Adjust the axial rigidity of this support and the relationship of energy dissipation capacity.The present invention is avoided in manufacture craft outside core dissipative member
The jacketed cylinder in portion, the processes such as grouting between sleeve and core dissipative member, simplify processing and making process, reduce engineering and make
Valence.And the present invention can only need the built-in fitting for using the components such as bolt and beam column to connect, both guarantee in factory process to scene
Component quality, and reduce the wet construction workload at scene, energy conservation and environmental protection.End has bending for oblique screw type induction unit
Song induction support had both had many advantages, such as the flexible arrangement of general buckling restrained brace, good energy-dissipating property, and can be by pre-
The folding line being first arranged controls the buckling form of support, prevents component from complete buckling occurs to early, while can consume to avoid in core
Energy member exterior effectively simplifies manufacturing procedure plus processes such as sleeve and grouting, has good Popularizing of A.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is end restraint section schematic diagram；
Fig. 3 is buckling section schematic diagram；
Fig. 4 is support flat segments schematic diagram；
Fig. 5 is square plate schematic diagram；
Fig. 6 is the short girder steel schematic diagram of T-type；
Fig. 7 is connecting plate schematic diagram；
Fig. 8 is that oblique screw type induces cell schematics；
Fig. 9 is that oblique screw type induces unit along the spatial order figure rotated counterclockwise；
Figure 10 is oblique screw type subelement schematic diagram；
Figure 11 is oblique screw type subelement floor map；
Figure 12 is hole floor map at folding line；
Figure 13 is A-A sectional view in Figure 11.
Specific embodiment
The present invention will be further explained with reference to the accompanying drawing.
Fig. 1 is the structural schematic diagram that there is oblique screw type the buckling induction of unit to be induced to support for end, by end restraint
Section 1, energy consumption section 2 and support flat segments 3 form, and end restraint section 1 is fixed between bean column node and energy consumption section 2, and energy consumption section 2 is solid
It is scheduled on support 3 both ends of flat segments.
As shown in Fig. 2, the connecting plate 6 that end restraint section 1 is reserved by components such as square plate 4, the short girder steel 5 of T-type and beam columns
Composition, square plate 4 are welded on energy consumption 2 end of section, and the short girder steel 5 of two T-types is welded to connect with square plate 4,4 He of square plate
The short girder steel 5 of T-type is respectively as shown in Fig. 5,6.Connecting plate 6 is clipped among the short girder steel 5 of two T-types, and connecting plate 6 and the short girder steel 5 of T-type are used
High-strength bolt connection, wherein connecting plate 6 is as shown in Figure 7.
In Fig. 3, energy consumption Duan Youwu oblique screw type induction units are formed along the axis direction of support, while passing through one
Perpendicular to axis direction and excessively oblique screw type induces the cross section on one vertex 12 of subelement, and all sides in section end that make to consume energy are same
In one plane.As shown in Figure 12 and Figure 13, equidistant hole-opening at folding line in the section 2 that consumes energy, the straight d diameter of hole are the thickness of plate, hole
Plate thickness, that is, 5d that the distance between hole is five times.As shown in figure 8, oblique screw type induction unit 7 is identical oblique by six
The space body to form that a section is helix is diagonally arranged successively to screw type subelement 8, helix is thrown from axial direction
Number of edges on shadow to the section perpendicular to axis direction is pentagon, and the oblique screw type of the starting point of helix induces subelement
Oblique screw type induction one vertex 13 of subelement of the terminal point of one vertex 12 and helix is overlapped.As shown in figure 9, (a)-(f)
Unit is induced to be formed by spatial order figure every 72 ° of rotations counterclockwise for oblique screw type.Such as Figure 10, Tu11Suo
Showing, oblique screw type subelement 8 is collinearly made of two pieces of triangular plates, respectively triangular plate 1 and triangular plate 2 10,
The common edge of intermediate cam shape plate 1 and triangular plate 2 10 is valley line 11.Triangular plate is folded inward along valley line 11, it is described to
Interior folding refers to that the angle between the exterior normal of adjacent triangular plate becomes smaller.
As shown in figure 4, support flat segments 3 are made of the bracing members 14 and square plate 4 of square-section, square plate 4 is welded
It connects in the end of the bracing members 14 of square-section, the section 2 that consumes energy and square plate 4 are welded to connect.
Claims (3)
1. there is the buckling of oblique screw type induction unit to induce support, including confinement section (1) and energy consumption section (2) for a kind of end,
It is characterized by also including support flat segments (3), the energy consumption section (2) is arranged at support flat segments (3) both ends,
The other end of the energy consumption section is arranged the confinement section, energy consumption section (2) by least one oblique screw type induction unit (7) along
The axis direction of support forms, and the end for oblique screw type induction unit (7) connecting with the energy consumption section is hung down for one by one
The directly plane of the cross section shearing of in axis direction and excessively oblique screw type induction one vertex of subelement (12)；The oblique spiral
Type induction unit (7) is diagonally to be arranged successively to form the sky that a section is helix by m oblique screw type subelements (8)
Mesosome, it is m-1 that the helix, which projects to the number of edges on the section perpendicular to axis direction from axial direction, and m is more than or equal to 3
Integer；The oblique screw type subelement (8) is space structure made of two pieces of triangular plates as being located in plane fold,
For two pieces of triangular plates planar at parallelogram, two pieces of set squares are respectively triangular plate one (9) and triangular plate two
(10), wherein the common edge of triangular plate one (9) and triangular plate two (10) is valley line (11)；Triangular plate is along valley line (11)
It is folded inward, the angle being folded inward between the exterior normal for referring to adjacent triangular plate becomes smaller；The helix rises
The oblique screw type of the terminal point of oblique screw type induction one vertex of subelement (12) and helix at point induces subelement one
Vertex (13) is overlapped；Energy consumption section (2) hole-opening at all folding lines, the hole diameter are d, and d is equal to plate thickness；
The distance between hole is that equal, described distance is equal to 5 times of hole diameters.
2. there is the buckling of oblique screw type induction unit to induce support for end according to claim 1, it is characterised in that:
The end restraint section (1) is made of regular polygon steel plate (4), the short girder steel of T-type (5) and connecting plate (6), regular polygon steel plate
(4) it is welded on energy consumption section (2) end, two short girder steels of T-type (5) and regular polygon steel plate (4) are welded to connect, connecting plate (6) folder
Intermediate in two short girder steels of T-type (5), connecting plate (6) is connect with the short girder steel of T-type (5) with high-strength bolt, the steel plate (4)
Number of edges is more than or equal to 3.
3. there is the buckling of oblique screw type induction unit to induce support for end according to claim 1, it is characterised in that:
Support flat segments (3) is made of the steel pipe (14) that section is regular polygon and regular polygon steel plate (4), regular polygon steel plate
(4) it is welded on the end of the steel pipe (14) of equilateral polygon section, energy consumption section (2) and regular polygon steel plate (4) are welded to connect, described
The number of edges in steel pipe (14) section is more than or equal to 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611020984.5A CN106639464B (en) | 2016-11-15 | 2016-11-15 | A kind of end has the buckling induction support of oblique screw type induction unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611020984.5A CN106639464B (en) | 2016-11-15 | 2016-11-15 | A kind of end has the buckling induction support of oblique screw type induction unit |
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| Publication Number | Publication Date |
|---|---|
| CN106639464A CN106639464A (en) | 2017-05-10 |
| CN106639464B true CN106639464B (en) | 2019-02-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611020984.5A Active CN106639464B (en) | 2016-11-15 | 2016-11-15 | A kind of end has the buckling induction support of oblique screw type induction unit |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112392174B (en) * | 2020-11-27 | 2021-12-28 | 东南大学 | Double-layer weakened type assembled steel plate shear wall structure |
| CN112376739B (en) * | 2020-11-27 | 2022-01-25 | 东南大学 | Double-layer crease weakening type assembled steel plate shear wall structure |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000265706A (en) * | 1999-03-19 | 2000-09-26 | Sumitomo Metal Ind Ltd | Buckling restraint brace |
| JP2002173981A (en) * | 2000-12-06 | 2002-06-21 | Shimizu Corp | Brace damper |
| US7461481B2 (en) * | 2004-05-07 | 2008-12-09 | Chong-Shien Tsai | Shock-absorbing tie brace |
| CN105888348A (en) * | 2016-06-01 | 2016-08-24 | 东南大学 | Buckling control support with diamond type energy dissipation units at ends |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3618722B2 (en) * | 2001-03-15 | 2005-02-09 | 株式会社大本組 | Reinforced concrete structure with brace type damper |
-
2016
- 2016-11-15 CN CN201611020984.5A patent/CN106639464B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000265706A (en) * | 1999-03-19 | 2000-09-26 | Sumitomo Metal Ind Ltd | Buckling restraint brace |
| JP2002173981A (en) * | 2000-12-06 | 2002-06-21 | Shimizu Corp | Brace damper |
| US7461481B2 (en) * | 2004-05-07 | 2008-12-09 | Chong-Shien Tsai | Shock-absorbing tie brace |
| CN105888348A (en) * | 2016-06-01 | 2016-08-24 | 东南大学 | Buckling control support with diamond type energy dissipation units at ends |
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| CN106639464A (en) | 2017-05-10 |
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