CN106481134B - A kind of end has the buckling induction support of cutting type induction unit - Google Patents

A kind of end has the buckling induction support of cutting type induction unit Download PDF

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Publication number
CN106481134B
CN106481134B CN201611011386.1A CN201611011386A CN106481134B CN 106481134 B CN106481134 B CN 106481134B CN 201611011386 A CN201611011386 A CN 201611011386A CN 106481134 B CN106481134 B CN 106481134B
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CN
China
Prior art keywords
plate
support
buckling
cutting
common edge
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CN201611011386.1A
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Chinese (zh)
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CN106481134A (en
Inventor
蔡建国
冯健
汪子哲
周宇航
柳杨青
马瑞君
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东南大学
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Priority to CN201611011386.1A priority Critical patent/CN106481134B/en
Publication of CN106481134A publication Critical patent/CN106481134A/en
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Publication of CN106481134B publication Critical patent/CN106481134B/en

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    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04HBUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H9/00Buildings, or groups of buildings, or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake, extreme climate
    • E04H9/02Buildings, or groups of buildings, or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake, extreme climate withstanding earthquake or sinking of ground
    • E04H9/021Bearing, supporting or connecting constructions specially adapted for such buildings

Abstract

The buckling that the invention discloses a kind of end there is cutting type to induce unit induces support, including confinement section and energy consumption section, further include a support flat segments, the setting of energy consumption section is made of at least one cutting type induction unit along the axis direction of support in the support flat segments both ends, energy consumption section;Cutting type induction unit is to induce subelement to be circumferentially arranged in order by m cutting type to form the space body that a section is regular polygon;It is the space structure for collinearly folding formation two-by-two by four pieces of triangular plates that cutting type, which induces subelement,.The present invention has the buckling induction support of cutting type induction unit using end, under small shake effect, the induction support of this buckling keeps elasticity, 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

A kind of end has the buckling induction support of cutting type induction unit
Technical field
The invention belongs to building structure technology fields, have the buckling that cutting type induces unit more particularly to a kind of end Induction support, is suitable for steel construction or concrete structure with buckling restrained brace.
Background technology
During steel construction or reinforced concrete structure use, common support compression will produce buckling phenomenon, work as branch After supportting compressive buckling, rigidity and bearing capacity drastically reduce.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 The problem of energy difference, is arranged casing outside support, constrains the compressive buckling of support, constitutes buckling restrained brace only core plate and other Component connects, and suffered load is 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 To avoid the defect of common support tension and compression bearing capacity significant difference, the on the other hand energy dissipation capacity with metal damper can be with It serves as in the structure " fuse " so that agent 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, big from great and difficulty of construction, to core cell sheet Body makes it promote and is very limited with use scope there are larger additional load.
Applicant proposed a kind of buckling control of the end with duplex pyramid type energy consumption unit on June 1st, 2016 Support(Application No. is 201610380805.2)With a kind of end there is the buckling of staggeredly pyramid energy consumption unit to control support (Application No. is 201610384216.1)Basic energy consumption unit be 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 proposed one on June 1st, 2016 Kind end has the energy-dissipating type buckling restrained brace of symmetrical initial imperfection unit(Application No. is 201610383430.5)And one kind End has the buckling control support of brilliant energy consumption unit(Application No. is 201610380804.8)Geometric configuration be fixed , 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.
Invention content
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 cutting type induction unit.The induction unit can induce support that high order mode surrender occurs, Avoid support that complete buckling occurs to early, and in cutting type induction unit after support generation local buckling, it will to be produced at folding line Raw plastic hinge, generates good hysteretic energy performance, while the flat segments being connected with this element can guarantee the axial direction of support again Rigidity has good bearing capacity.
Technical solution:To achieve the above object, the technical solution adopted by the present invention is:
A kind of end has the buckling induction support of cutting type induction unit, including confinement section and energy consumption section, feature exist In:Further include a support flat segments, the energy consumption section setting is at the support flat segments both ends, in the other end of the energy consumption section The confinement section is set, and energy consumption section is made of at least one cutting type induction unit along the axis direction of support;Described Cutting type induction unit is to induce subelement to be circumferentially arranged in order by m cutting type to form the sky that a section is regular polygon Mesosome, the number of edges 2m, m of the regular polygon are the integer more than or equal to 2;The cutting type induction subelement is by four pieces of triangles Shape plate collinearly folds the space structure of formation two-by-two, and four pieces of triangular plates are respectively triangular plate one, triangular plate two, triangle The common edge of plate three and triangular plate four, triangular plate one and triangular plate two is the first common edge, triangular plate two and triangle The common edge of shape plate three is the second common edge, and the common edge of triangular plate three and triangular plate four is third common edge, and first is public Side, the second common edge and third common edge intersect at a point altogether;Wherein the second common edge is crest line, and the first common edge and third are public Side is cutting altogether;Triangular plate is foldable outwardly along crest line;It is described outward folding refer to adjacent triangular plate exterior normal it Between angle become larger;The thickness of plate is the half of triangle plate thickness at the cutting.
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 The section that consumes energy end, two short girder steels of T-type are welded to connect with regular polygon steel plate, 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 is connected on the end of the steel pipe of equilateral polygon section, energy consumption section is welded to connect with regular polygon steel plate, the number of edges of the steel tube section Also it is more than or equal to 3.
The width of the cutting is equal to the thickness of plate at cutting.The hole-opening at all cuttings, hole diameter size are D/2, the distance between hole are 5d, and wherein d is the thickness of triangular plate.
Advantageous effect:
A kind of end of the present invention has the buckling induction support of cutting type induction unit, by end restraint section, energy consumption section and Flat segments are supported to constitute.Unit is induced using cutting type in support, there are more clear advantages:One, cutting type induces unit After local buckling occurs, it will plastic hinge is generated at folding line, it is good to generate to make the plate between folding line rotate Good hysteretic energy performance.Two, buckling induction supporting base end portion use cutting type induce unit, configuration is simple, be suitable for rectangle, The support of the various cross sectional shapes such as circle, polygon.Due to supporting no rough shape, so it has preferably U.S. The property seen;And there is larger axial rigidity and good bearing capacity at the initial stage of stress.Three, cutting type induction unit passes through The cutting in plate, while the hole-opening at cutting are more prone to induction and are supported under geological process, preset high-order only can occur Buckling mode is surrendered, while larger strain can occur at folding line to form yield line, reaches dissipation seismic energy The purpose of amount.Four, the support flat segments being combined with buckling induction section, it is ensured that support required axial rigidity.By changing The number for becoming the length and cutting type induction unit in buckling induction section of support flat segments, can adjust the axial rigidity of this support With the relationship of energy dissipation capacity.The present invention avoids outside core dissipative member jacketed cylinder, in sleeve and core in manufacture craft The processes such as grouting, simplify processing and making process, reduce project cost between heart dissipative member.And the present invention can be in work Factory processes, and only needs the built-in fitting for using the components such as bolt and beam column to connect to scene, not only ensure that component quality, but also reduces existing The wet construction workload of field, energy conservation and environmental protection.End induces the buckling induction support of unit both with general buckling with cutting type The advantages that flexible arrangement of constraint support, good energy-dissipating property, and bending for support can be controlled by pre-set cutting Curved formula prevents component from the Integral modes buckling of low order occurs to early, while can be added to avoid outside core dissipative member The processes such as sleeve and grouting effectively simplify manufacturing procedure, have good Popularizing of A.
Description of the drawings
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 cutting type induces cell schematics;
Fig. 9 is cutting type elicitor cell schematics;
Figure 10 is that cutting type induces subelement floor map;
Figure 11 is plate thickness schematic diagram at cutting;
Figure 12 is hole floor map at cutting.
Specific implementation mode
The present invention is further described below in conjunction with the accompanying drawings.
Fig. 1 be end have cutting type induce unit buckling induction support structural schematic diagram, by end restraint section 1, The section 2 that consumes energy 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 fixed 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 2 end of energy consumption 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 of T-type 5 is shown in Fig. 5, shown in 6 respectively.Connecting plate 6 is clipped among the short girder steel of two T-types 5, and connecting plate 6 is used with the short girder steel 5 of T-type High-strength bolt connection, wherein connecting plate 6 are as shown in Figure 7.
In Fig. 3, energy consumption section 2 induces unit 7 to be formed along the axis direction of support by six cutting types.As shown in figure 8, carving Groove profile induces unit 7 to be circumferentially arranged in order by two identical cutting type induction subelements 8 and forms a section as quadrangle Space body.As shown in Figure 9, Figure 10, cutting type induction subelement 8 is collinearly made of two-by-two four pieces of triangular plates, and respectively three Angular plate 1, triangular plate 2 10, triangular plate 3 11 and triangular plate 4 12, the common edge between them are respectively first Common edge 13, the second common edge 14 and third common edge 15, wherein the second common edge 14 is crest line, the first common edge 13 and third Common edge 15 is cutting.Triangular plate is foldable outwardly along crest line, outward folding refer to adjacent triangular plate exterior normal it Between angle become larger.As shown in Figure 11,12, at cutting the thickness of plate be triangle plate thickness half, the width of cutting is cutting Locate the thickness of plate.The hole-opening at all cuttings, hole diameter size are d/2, and the distance between hole is 5d, and wherein d is The thickness of triangular plate.
As shown in figure 4, support flat segments 3 are made of the bracing members 16 and square plate 4 of square-section, square plate 4 welds It is connected on the end of the bracing members 16 of square-section, energy consumption section 2 is welded to connect with square plate 4.

Claims (3)

1. a kind of end has the buckling induction support of cutting type induction unit, including confinement section(1)With energy consumption section(2), special Sign is:Further include a support flat segments(3), the energy consumption section(2)It is arranged in the support flat segments(3)Both ends, described Confinement section described in the other end setting for the section that consumes energy, consume energy section(2)Unit (7 is induced by least one cutting type)Along support Axis direction forms;The cutting type induces unit(7)It is that subelement is induced by m cutting type(8)Circumferentially it is arranged in order shape At the space body that a section is regular polygon, the number of edges of the regular polygon is 2m, and m is the integer more than or equal to 2;The quarter Groove profile induces subelement(8)For the space structure formed after folding by four pieces of triangular plates in plane, four pieces of triangles Shape plate is respectively triangular plate one(9), triangular plate two(10), triangular plate three(11)With triangular plate four(12), triangle Plate one(9)With triangular plate two(10)Common edge be the first common edge(13), triangular plate two(10)With triangular plate three (11)Common edge be the second common edge(14), triangular plate three(11)With triangular plate four(12)Common edge be third it is public Side(15), the first common edge(13), the second common edge(14)With third common edge(15)It intersects at a point;Wherein the second common edge (14)For crest line, the first common edge(13)With third common edge(15)For cutting;Triangular plate is foldable outwardly along crest line;It is described Outward folding refers to that the angle between the exterior normal of adjacent triangular plate becomes larger;The thickness of plate is triangular plate at the cutting Thick half;The width of the cutting is equal to the thickness of plate at cutting;The hole-opening at all cuttings, hole diameter size are d/ 2, the distance between hole is 5d, and wherein d is the thickness of triangular plate.
2. end according to claim 1 has the buckling induction support of cutting type induction unit, it is characterised in that:It is described End restraint section(1)By regular polygon steel plate(4), the short girder steel of T-type(5)And connecting plate(6)Composition, regular polygon steel plate(4)Weldering It is connected on energy consumption section(2)End, two short girder steels of T-type(5)With regular polygon steel plate(4)It is welded to connect, connecting plate(6)It is clipped in two The short girder steel of T-type(5)Centre, connecting plate(6)With the short girder steel of T-type(5)It is connected with high-strength bolt, the steel plate(4)Number of edges it is big In equal to 3.
3. end according to claim 2 has the buckling induction support of cutting type induction unit, it is characterised in that:It is described Support flat segments(3)By the steel pipe that section is regular polygon(16)With regular polygon steel plate(4)Composition, regular polygon steel plate(4) It is welded on the steel pipe of equilateral polygon section(16)End, consume energy section(2)With regular polygon steel plate(4)It is welded to connect, the steel Pipe(16)The number of edges in section is more than or equal to 3.
CN201611011386.1A 2016-11-15 2016-11-15 A kind of end has the buckling induction support of cutting type induction unit CN106481134B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201611011386.1A CN106481134B (en) 2016-11-15 2016-11-15 A kind of end has the buckling induction support of cutting type induction unit

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Application Number Priority Date Filing Date Title
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CN106481134B true CN106481134B (en) 2018-08-21

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Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101152653B1 (en) * 2009-11-19 2012-06-04 서울시립대학교 산학협력단 Seismic control brace device
KR101105742B1 (en) * 2010-05-03 2012-01-17 한국건설기술연구원 Eccentric Toggle and Amplified Damper Apparatus and Displacement-Amplifying Damping System using such Apparatus
KR101188784B1 (en) * 2011-02-09 2012-10-10 조선대학교산학협력단 Circular brace and Construction method using that
CN202248268U (en) * 2011-08-19 2012-05-30 建研科技股份有限公司 Buckling restrained brace
CN106049952B (en) * 2016-06-01 2018-08-21 东南大学 A kind of end has the buckling control support of duplex pyramid type energy consumption unit
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
CN105971355B (en) * 2016-06-01 2018-10-26 东南大学 A kind of casing constraining anti-buckling support with brilliant energy consumption unit

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