CN106760834B - A kind of end has the buckling induction support of the double-deck inner concave shape induction unit of elongated degree - Google Patents
A kind of end has the buckling induction support of the double-deck inner concave shape induction unit of elongated degree Download PDFInfo
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- CN106760834B CN106760834B CN201611029821.3A CN201611029821A CN106760834B CN 106760834 B CN106760834 B CN 106760834B CN 201611029821 A CN201611029821 A CN 201611029821A CN 106760834 B CN106760834 B CN 106760834B
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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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- Bridges Or Land Bridges (AREA)
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Abstract
The invention discloses a kind of ends, and there is the elongated buckling for spending the double-deck inner concave shape 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 at support flat segments both ends, energy consumption section is made of the double-deck inner concave shape induction unit of at least one elongated degree along the axis direction of support, elongated bilayer inner concave shape induction unit of spending is by the m elongated space bodies spent the double-deck inner concave shape subelements and be arranged successively section circumferentially as regular polygon, it is elongated spend the double-deck inner concave shape subelement be by the same plane six triangular plates and six trapezoidal plates by folding the space body formed.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, the present invention reduces Contraction in Site workload, energy conservation and environmental protection in manufacture craft.
Description
Technical field
The invention belongs to building structure technology fields, have the double-deck inner concave shape induction of elongated degree more particularly to a kind of end
The buckling of unit induces 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 elongated energy-dissipating type buckling induction support for spending the double-deck inner concave shape induction unit.The induction unit can induce support that high-order occurs
Mode surrender avoids support that complete buckling occurs to early, and the double-deck inner concave shape induction unit of elongated degree has more folding line, more
The plastic property of unit can be given full play to, while the flat segments being connected with this element can guarantee the axial rigidity of support again, had
There is 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 the double-deck inner concave shape induction unit of elongated degree, including confinement section and energy consumption
Section, it is characterised in that: further include a support flat segments, the energy consumption section is arranged at the support flat segments both ends, in the consumption
The other end setting of the energy section confinement section, energy consumption section induce unit along support by the double-deck inner concave shape of at least one elongated degree
Axis direction composition, the double-deck inner concave shape induction unit of the elongated degree is by m elongated degree bilayer inner concave shape subelements along ring
To the space body that section is regular polygon is arranged successively, the number of edges of the regular polygon is 2m, and m is the integer more than or equal to 2；Become
Length bilayer inner concave shape subelement be by the same plane six triangular plates and six trapezoidal plates formed by folding
Space body, six triangular plates are conllinear two-by-two and intersect at a vertex, and six pieces of trapezoidal plates are centered around the outside of six pieces of triangular plates,
Internal layer is according to respectively triangular plate one, triangular plate two, triangular plate three, triangular plate four, five and of triangular plate counterclockwise
Triangular plate six, wherein the common edge of triangular plate two and triangular plate three, the common edge of triangular plate three and triangular plate four,
The common edge of the common edge of triangular plate five and triangular plate six, triangular plate six and triangular plate one is crest line, triangular plate
One and triangular plate two common edge and triangular plate four and triangular plate five common edge be valley line, outer layer according to counterclockwise point
Not Wei trapezoidal plate one, trapezoidal plate two, trapezoidal plate three, trapezoidal plate four, trapezoidal plate five and trapezoidal plate six, wherein trapezoidal plate one and trapezoidal
The common edge and trapezoidal plate four of plate two and the common edge of trapezoidal plate five are crest line, common edge, the ladder of trapezoidal plate two and trapezoidal plate three
The common edge of shape plate three and trapezoidal plate four, the common edge of trapezoidal plate five and trapezoidal plate six, trapezoidal plate six and trapezoidal plate one it is public
While being valley line；All common edges between the internal layer triangular plate and outer layer trapezoidal plate are all valley lines；Adjacent plate along
Crest line is foldable outwardly, and is folded inward along valley line；The angle being foldable outwardly between the exterior normal for referring to adjacent plate becomes
Greatly, the angle being folded inward between the exterior normal for referring to adjacent plate becomes smaller；In the double-deck inner concave shape subelement of elongated degree
Trapezoidal plate three free edge lengths and elongated two valley lines for spending the double-deck inner concave shape subelement internal layer and outer layer two crest lines
The sum of length is unequal；The freedom of the elongated free edge lengths for spending the trapezoidal plate three in the double-deck inner concave shape subelement and trapezoidal plate five
Edge lengths are equal.
The free margins and axially adjacent elongated degree of the elongated trapezoidal plate four for spending the double-deck inner concave shape subelement are double-deck
The free margins of the trapezoidal plate one of inner concave shape subelement is overlapped and is formed a crest line, the elongated trapezoidal plate for spending the double-deck inner concave shape subelement
Five free margins is overlapped with the free margins of the trapezoidal plate two of axially adjacent elongated degree bilayer inner concave shape subelement and forms one
Crest line.
Energy consumption section hole-opening at all folding lines, described hole diameter are d, and d is equal to plate thickness；Between hole
Distance be it is equal, the distance be equal to 5 times of hole diameters.
With the elongated degree bilayer inner concave shape subelement end that connect of energy consumption section for by one perpendicular to axis direction and
Cross the plane that the elongated cross section for spending double-deck one vertex of inner concave shape subelement is clipped.
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 also m.
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
More than or equal to 3.
The utility model has the advantages that
There is a kind of end of the present invention the elongated buckling for spending the double-deck inner concave shape induction unit to induce support, by end restraint
Section, energy consumption section and support flat segments are constituted.Unit is induced using the double-deck inner concave shape of elongated degree in support, is had more apparent excellent
Point: one, the induction unit can be by changing the two of the angle between internal layer and outer layer, two valley lines and outer layer that change internal layer
The sum of the length of crest line makes support that local buckling energy consumption occur first.Two, the double-deck inner concave shape induction unit of elongated degree have compared with
More folding lines, and folding line is divided into two-stage, and can dissipate more energy.Three, the elongated ladder spent in the double-deck inner concave shape subelement
Two crest line length of the free edge lengths of shape plate three and elongated two valley lines for spending the double-deck inner concave shape subelement internal layer and outer layer
The sum of it is unequal, make to be supported in loading process and be more easier to generate axial deformation, to prevent support from whole bend occurs to early
It is bent.Four, the induction unit passes through the pre-set folding line formed by crest line and valley line, while the hole-opening at folding line, more
Easy induction is supported under geological process, is generated high-order buckling mode, is promoted the energy dissipation capacity of support.Five, section is induced with buckling
The support flat segments combined, it is ensured that support required axial rigidity.By the length and buckling that change support flat segments
Induce the elongated number for spending the double-deck inner concave shape induction unit, the pass of adjustable the axial rigidity supported and energy dissipation capacity in section
System.The present invention avoids outside core dissipative member jacketed cylinder, between sleeve and core dissipative member in manufacture craft
The processes such as grouting, simplify processing and making process, reduce project cost.And the present invention can be in factory process, to scene
It only needs the built-in fitting for using the components such as bolt and beam column to connect, not only ensure that component quality, but also reduce the wet construction work at scene
It measures, energy conservation and environmental protection.End had both had general buckling about with the elongated buckling induction support for spending the double-deck inner concave shape induction unit
The advantages that flexible arrangement of bundle branch support, good energy-dissipating property, and can control the buckling form of support, while can be avoided
Plus processes such as sleeve and grouting outside core dissipative member, effectively simplify manufacturing procedure, there is 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 quadrangular steel sheets 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 the double-deck inner concave shape of elongated degree induces cell schematics；
Fig. 9 is the double-deck inner concave shape subelement schematic diagram of elongated degree；
Figure 10 is the double-deck inner concave shape subelement floor map of elongated degree；
Figure 11 is hole floor map at folding line；
Figure 12 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 that end has the elongated structural schematic diagram spent the double-deck inner concave shape and induce the buckling induction support of unit, by holding
Portion's confinement 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, consumption
Energy section 2 is fixed on support 3 both ends of flat segments.
As shown in Fig. 2, the connecting plate that end restraint section 1 is reserved by components such as quadrangular steel sheets 4, the short girder steel 5 of T-type and beam columns
6 compositions, quadrangular steel sheets 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 quadrangular steel sheets 4, quadrangle
Steel plate 4 and the short girder steel 5 of T-type are 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 T-type are short
Girder steel 5 is connected with high-strength bolt, and wherein connecting plate 6 is as shown in Figure 7.
In Fig. 3, energy consumption section 2 is made of the double-deck inner concave shape induction unit 7 of six elongated degree along the axis direction of support, together
When energy consumption section 2 clipped by perpendicular to an axis direction and excessively elongated cross section for spending double-deck one vertex 30 of inner concave shape subelement
All sides in section end are then consumed energy in the same plane in end toothed segment part；The elongated trapezoidal plate for spending the double-deck inner concave shape subelement 8
Four free margins 25 is overlapped with the free margins 23 of the trapezoidal plate one of axially adjacent elongated degree bilayer inner concave shape subelement 8 and shape
At a crest line 21, the free margins 26 and axially adjacent elongated degree of the elongated trapezoidal plate five for spending the double-deck inner concave shape subelement 8 are double
The free margins 24 of the trapezoidal plate two of layer inner concave shape subelement 8 is overlapped and forms a crest line 21.As shown in figure 8, in elongated degree bilayer
Concave induces unit 7 to be circumferentially arranged successively by six identical elongated degree bilayer inner concave shape subelements 8 and forms a section and be
The space body of regular hexagon.As shown in figure 9, the double-deck inner concave shape subelement 8 of elongated degree is by six isosceles three in the same plane
By folding the space body formed composition, six triangular plates are conllinear two-by-two and intersect at a top for angular plate and six trapezoidal plates
Point, six pieces of trapezoidal plates are centered around the outside of six pieces of triangular plates, and internal layer is according to respectively triangular plate 1, triangle counterclockwise
Plate 2 10, triangular plate 3 11, triangular plate 4 12, triangular plate 5 13 and triangular plate 6 14, wherein triangular plate 2 10
With the common edge of triangular plate 3 11, the common edge of triangular plate 3 11 and triangular plate 4 12, triangular plate 5 13 and triangle
The common edge of the common edge of shape plate 6 14, triangular plate 6 14 and triangular plate 1 is crest line 21, triangular plate 1 and triangle
The common edge and triangular plate 4 12 of shape plate 2 10 and the common edge of triangular plate 5 13 are valley line 22, and outer layer is according to counterclockwise point
Not Wei trapezoidal plate 1, trapezoidal plate 2 16, trapezoidal plate 3 17, trapezoidal plate 4 18, trapezoidal plate 5 19 and trapezoidal plate 6 20, wherein ladder
The common edge and trapezoidal plate 4 18 of shape plate 1 and trapezoidal plate 2 16 and the common edge of trapezoidal plate 5 19 are crest line 21, trapezoidal plate two
16 and the common edge of trapezoidal plate 3 17, the common edge of trapezoidal plate 3 17 and trapezoidal plate 4 18, trapezoidal plate 5 19 and trapezoidal plate 6 20
Common edge, the common edge of trapezoidal plate 6 20 and trapezoidal plate 1 be valley line 22；Between internal layer triangular plate and outer layer trapezoidal plate
All common edges be all valley line 22；Adjacent plate is foldable outwardly along crest line 21, is folded inward along valley line 22；To being folded outward
Angle between the folded exterior normal for referring to adjacent plate becomes larger, and the folder between the exterior normal for referring to adjacent plate is folded inward
Angle becomes smaller；Elongated 27 length of free margins for spending the trapezoidal plate three in the double-deck inner concave shape subelement 8 and double-deck inner concave shape of elongated degree
The sum of two valley lines 22 of 8 internal layer of unit and two 21 length of crest line of outer layer are unequal；The double-deck inner concave shape subelement 8 of elongated degree
In trapezoidal plate three 27 length of free margins and trapezoidal plate five 28 equal length of free margins.
As shown in figure 4, support flat segments 3 are made of the bracing members 29 and quadrangular steel sheets 4 of quadrangular section, quadrangle steel
Plate 4 is welded on the end of the bracing members 29 of quadrangular section, and energy consumption section 2 and quadrangular steel sheets 4 are welded to connect.
As shown in Figure 11, Figure 12, equidistant hole-opening at folding line in the section 2 that consumes energy, hole diameter is the thickness of plate, hole
The distance between be five times of plate thickness.
Claims (5)
1. there is the elongated buckling for spending the double-deck inner concave shape induction unit to induce support, including confinement section and energy consumption section for a kind of end,
It is characterized by also including a support flat segments, the energy consumption section is arranged at the support flat segments both ends, in the energy consumption section
The other end setting confinement section, energy consumption section elongated spends double-deck inner concave shape induction unit along the axis of support by least one
Line direction composition, the double-deck inner concave shape induction unit of the elongated degree be by m elongated degree bilayer inner concave shape subelements circumferentially according to
Secondary arrangement section is the space body of regular polygon, and the number of edges of the regular polygon is 2m, and m is the integer more than or equal to 2；Elongated degree
The double-deck inner concave shape subelement be by the same plane six triangular plates and six trapezoidal plates by folding the space formed
Body, six triangular plates are conllinear two-by-two and intersect at a vertex, and six pieces of trapezoidal plates are centered around the outside of six pieces of triangular plates, internal layer
According to respectively triangular plate one, triangular plate two, triangular plate three, triangular plate four, triangular plate five and triangle counterclockwise
Shape plate six, wherein the common edge of triangular plate two and triangular plate three, triangular plate three and triangular plate four common edge, triangle
The common edge of the common edge of shape plate five and triangular plate six, triangular plate six and triangular plate one is crest line, one He of triangular plate
The common edge and triangular plate four of triangular plate two and the common edge of triangular plate five are valley line, and outer layer is respectively according to counterclockwise
Trapezoidal plate one, trapezoidal plate two, trapezoidal plate three, trapezoidal plate four, trapezoidal plate five and trapezoidal plate six, wherein trapezoidal plate one and trapezoidal plate two
Common edge and the common edge of trapezoidal plate four and trapezoidal plate five be crest line, common edge, the trapezoidal plate of trapezoidal plate two and trapezoidal plate three
Three and the common edge of trapezoidal plate four, the common edge of trapezoidal plate five and trapezoidal plate six, the common edge of trapezoidal plate six and trapezoidal plate one be
Valley line；All common edges between the internal layer triangular plate and outer layer trapezoidal plate are all valley lines；Adjacent plate is along crest line
It is foldable outwardly, is folded inward along valley line；The angle being foldable outwardly between the exterior normal for referring to adjacent plate becomes larger, to
Interior folding refers to that the angle between the exterior normal of adjacent plate becomes smaller；It is trapezoidal in the double-deck inner concave shape subelement of elongated degree
The free edge lengths of plate three and two crest line length of elongated two valley lines for spending the double-deck inner concave shape subelement internal layer and outer layer it
With it is unequal；The free edge lengths of the elongated free edge lengths for spending the trapezoidal plate three in the double-deck inner concave shape subelement and trapezoidal plate five
It is equal；Energy consumption section hole-opening at all folding lines, described hole diameter are d, and d is equal to plate thickness；Between hole away from
From be it is equal, the distance be equal to 5 times of hole diameters.
2. there is the elongated buckling for spending the double-deck inner concave shape induction unit to induce support for end according to claim 1, special
Sign is: a free margins and axially adjacent elongated degree for the elongated trapezoidal plate four for spending the double-deck inner concave shape subelement is double-deck
The free margins of the trapezoidal plate one of inner concave shape subelement is overlapped and is formed a crest line, the elongated trapezoidal plate for spending the double-deck inner concave shape subelement
Five free margins is overlapped with the free margins of the trapezoidal plate two of axially adjacent elongated degree bilayer inner concave shape subelement and forms one
Crest line.
3. there is the elongated buckling for spending the double-deck inner concave shape induction unit to induce support for end according to claim 1, special
Sign is: the elongated degree bilayer inner concave shape subelement end connecting with the energy consumption section is by one perpendicular to axis direction and mistake
The plane that the elongated cross section for spending double-deck one vertex of inner concave shape subelement is clipped.
4. there is the elongated buckling for spending the double-deck inner concave shape induction unit to induce branch for end according to claim 1 to 3
Support, it is characterised in that: the end restraint section is made of regular polygon steel plate, the short girder steel of T-type and connecting plate, regular polygon steel plate
It 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 in two short girder steels of T-type
Centre, connecting plate are 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.
5. there is the elongated buckling for spending the double-deck inner concave shape induction unit to induce branch for end according to claim 1 to 3
Support, it is characterised in that: the support flat segments are made of the steel pipe that section is regular polygon and regular polygon steel plate, regular polygon
Steel plate is welded on the end of the steel pipe of equilateral polygon section, and energy consumption section and regular polygon steel plate are welded to connect, the steel tube section
Number of edges be more than or equal to 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611029821.3A CN106760834B (en) | 2016-11-15 | 2016-11-15 | A kind of end has the buckling induction support of the double-deck inner concave shape induction unit of elongated degree |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611029821.3A CN106760834B (en) | 2016-11-15 | 2016-11-15 | A kind of end has the buckling induction support of the double-deck inner concave shape induction unit of elongated degree |
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| CN106760834A CN106760834A (en) | 2017-05-31 |
| CN106760834B true CN106760834B (en) | 2019-01-08 |
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| NZ336766A (en) * | 1997-02-10 | 2000-08-25 | United Kingdom Government | Transgenic potatoes having reduced levels of alpha glucan l- or h- type tuber phosphorylase activity with reduced cold-sweetening |
| JP3744267B2 (en) * | 1999-07-05 | 2006-02-08 | 株式会社大林組 | Building vibration control device |
| CN203394140U (en) * | 2013-08-07 | 2014-01-15 | 田鑫 | Corrugated steel plate flame retardant polyurethane composite building structure |
| CN105888348B (en) * | 2016-06-01 | 2018-07-27 | 东南大学 | A kind of end has the buckling control support of brilliant energy consumption unit |
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