CN106639462A - Bending induction support with two-way spiral type induction units at ends - Google Patents

Bending induction support with two-way spiral type induction units at ends Download PDF

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Publication number
CN106639462A
CN106639462A CN201611011118.XA CN201611011118A CN106639462A CN 106639462 A CN106639462 A CN 106639462A CN 201611011118 A CN201611011118 A CN 201611011118A CN 106639462 A CN106639462 A CN 106639462A
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China
Prior art keywords
plate
triangular plate
support
induction
triangular
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CN201611011118.XA
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Chinese (zh)
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CN106639462B (en
Inventor
蔡建国
冯健
刘鹏
周宇航
柳杨青
马瑞君
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东南大学
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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 invention discloses a bending induction support with two-way spiral type induction units at the ends. The bending induction support comprises restraining sections, energy consumption sections and a support straight section; the energy consumption sections are installed at the two ends of the support straight section, and each energy consumption section is composed of one or more two-way spiral type induction units in the axial direction of the support; each two-way spiral type induction unit is a space body with the cross section being a regular m-polygon, and the space body is formed by arranging m two-way spiral type induction subunits in the circumferential direction in sequence; each two-way spiral type induction subunit is a space body formed by folding four triangle plates in a two-two collineation mode. According to the bending induction support, under the effect of small earthquakes, the bending induction support keeps elasticity; under the effect of middle earthquakes or large earthquakes, the bending induction support enters a yield stage, and hysteric energy performance of the casing pipe bending induction support can have the effect of a damper; and compared with a traditional bending restraining support, the bending induction support reduces the working amount of in-place construction, saves energy and protects the environment.

Description

The flexing induction that a kind of end has bidirectional screw type induction unit is supported
Technical field
The invention belongs to building structure technology field, more particularly to a kind of end has bidirectional screw type induction unit Flexing induction is supported, it is adaptable to the steel construction with buckling restrained brace or xoncrete structure.
Background technology
During steel construction or reinforced concrete structure use, common support is pressurized to produce flexing phenomenon, when After support compressive buckling, rigidity and bearing capacity are drastically reduced.Under earthquake or wind action, the internal force of support is in pressurized and tension two Back and forth change under the state of kind.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, support it is outside sleeve pipe is set, constrain the compressive buckling for supporting, constitute buckling restrained brace only central layer and other Component connects, and suffered load is all undertaken by central layer, and outer sleeve and packing material only constrain central layer compressive buckling, make central layer exist Tension and being entered by pressure is surrendered, 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 Serve as " electric fuse " in the structure so that agent structure is substantially in elastic range.Therefore, the application of buckling restrained brace, Traditional support frame anti-seismic performance under middle shake and big shake is improved comprehensively can.But traditional buckling restrained brace is generally adopted With steel and coagulation local soil type into restraining tube, it is high to cause to make precision prescribed, big from great and difficulty of construction, to core cell sheet There is larger additional load in body so as to promote and use range is very limited.
Applicant proposed the flexing control that a kind of end has duplex pyramid type power consumption unit on June 1st, 2016 Support(Application No. 201610380805.2)The flexing control with a kind of end with staggeredly pyramid power consumption unit is supported (Application No. 201610384216.1)Basic power consumption unit be pyramid, pyramid power consumption unit be it is non-rigid can Exhibition;So flexing control supports the difficulty for pressing the power consumption of high-order buckling mode larger.Applicant proposes one on June 1st, 2016 Plant the energy-dissipating type buckling restrained brace that end has symmetrical initial imperfection unit(Application No. 201610383430.5)And one kind The flexing control that end has brilliant power consumption unit is supported(Application No. 201610380804.8)Geometric configuration be fixed , design flexibility is little.It is and the unit that consumes energy in above-mentioned support is consistent at the construction at folding line, thickness of slab etc. with non-folding line, unfavorable In the generation plastic hinge at folding line.
The content of the invention
Goal of the invention:As existing buckling restrained brace has central layer, outer sleeve and packing material etc. to constitute, processing technology is multiple It is miscellaneous, and the component that is connected with buckling restrained brace or joints are larger;For the problem for overcoming prior art to exist, this The bright bidirectional screw type that is introduced into induces unit on traditional common support, forms a kind of end and has the induction of bidirectional screw type single The flexing induction of unit is supported, and is from prioritizing selection during buckling restrained brace in engineering structure.
Technical scheme:For achieving the above object, the technical solution used in the present invention is:
The flexing induction that a kind of end has bidirectional screw type induction unit is supported, and including confinement section and power consumption section, its feature exists In:Also flat segments, the power consumption section are supported to be arranged on the support flat segments two ends including one, in the other end of the power consumption section Described confinement section is set, and the section that consumes energy induces unit to constitute along the axis direction for supporting by least one bidirectional screw type;Institute The bidirectional screw type induction unit stated is circumferentially to be arranged in order to form a section for positive m by m bidirectional screw type subelement Polygonal space body, the side number m of the regular polygon are the integer more than or equal to 3;The bidirectional screw type subelement is served as reasons Four pieces of triangular plates collinearly fold the space body of formation two-by-two, four pieces of triangular plates be respectively triangular plate one, triangular plate two, Triangular plate three and triangular plate four, triangular plate one and triangular plate two are planar parallelogram, triangular plate three Also it is planar the parallelogram and three of parallelogram, triangular plate one and the formation of triangular plate two with triangular plate four The angle of the parallelogram that angular plate three and triangular plate four are formed is obtuse angle;Triangular plate one and triangular plate two it is public Side is the second common edge, triangular plate three and triangle for the common edge of the first common edge, triangular plate two and triangular plate three The common edge of plate four is the 3rd common edge, wherein the second common edge is crest line, the first common edge and the 3rd common edge are valley line;Three Angular plate is foldable outwardly along crest line, and along valley line to interior folding, the outward folding refers to the outer method of adjacent triangular plate Angle between line becomes big, refers to that the angle between the exterior normal of adjacent triangular plate diminishes to interior folding.
The end restraint section is made up of regular polygon steel plate, T-shaped short girder steel and connecting plate, and regular polygon steel plate is welded on Power consumption section end, two T-shaped short girder steels are welded to connect with regular polygon steel plate, and connecting plate is clipped in the middle of two T-shaped short girder steels, even Fishplate bar is connected with high-strength bolt with T-shaped short girder steel, and the side number of described steel plate is more than or equal to 3.
The steel pipe and regular polygon steel plate that flat segments are supported by section for regular polygon is constituted, the weldering of regular polygon steel plate The end of the steel pipe of equilateral polygon section is connected on, power consumption section is welded to connect with regular polygon steel plate, the side number of the steel tube section Also it is more than or equal to 3.
The hole-opening at all folding lines of described power consumption section, described hole diameter is d, and d is equal to plate thickness;Hole it Between distance be equal, described distance be equal to 5 times of hole diameters.
Beneficial effect:
The flexing induction that a kind of end of the present invention has bidirectional screw type induction unit is supported, by end restraint section, power consumption section and Flat segments are supported to constitute.Unit is induced using bidirectional screw type in support, with more clear advantages:First, bidirectional screw type The torsional rigidity very little of induction unit, causes to support the motion that easily twists, so as to avoid supporting too early generation integrally to lose Surely.There is surrender by the 2nd, twist motion in the folding line for causing ring screw type induction unit, consume energy so as to produce plastic deformation, Make support that there is good energy dissipation capacity and axial carrying capacity.3rd, bidirectional screw type induction unit occurs suitable vertically respectively Hour hands and torsion counterclockwise, but ensure that bidirectional screw type induction unit end cross-sectional is not rotated against all the time, so that Support stress more reasonable.4th, bidirectional screw type induction unit passes through the folding line formed by valley line and crest line for pre-setting, together When the hole-opening at the folding line, be more prone to induction and be supported under geological process, only can occur along the axial direction deformation for supporting Default high order mode surrender, while larger strain can occur so as to form yield line at folding line, reaches dissipation The purpose of seismic energy.5th, the support flat segments for inducing section to combine with flexing, it is ensured that the axial rigidity needed for supporting. Induce bidirectional screw type in section to induce the number of unit by changing the length for supporting flat segments and flexing, this support can be adjusted Axial rigidity and energy dissipation capacity relation.The present invention avoid in processing technology outside core dissipative member jacketed cylinder, Between sleeve and core dissipative member, the process such as grouting, simplifies processing and making process, reduces construction costs.And this It is bright to only need to be connected with the built-in fitting of the components such as bolt and beam column to scene, both ensure that component quality in factory process, The wet trade workload at scene, energy-conserving and environment-protective are reduced again.The flexing induction that end has bidirectional screw type induction unit is supported Both the advantages of flexible arrangement with general buckling restrained brace, good energy-dissipating property, the flexing shape for supporting can be controlled again Formula, prevents component from complete buckling occurs to early, while can avoid sleeve and grouting etc. are added outside core dissipative member Process, effectively simplifies manufacturing procedure, with good Popularizing of A.
Description of the drawings
Fig. 1 is the structural representation of the present invention;
Fig. 2 is end restraint section schematic diagram;
Fig. 3 is flexing section schematic diagram;
Fig. 4 is support flat segments schematic diagram;
Fig. 5 is square plate schematic diagram;
Fig. 6 is T-shaped short girder steel schematic diagram;
Fig. 7 is connecting plate schematic diagram;
Fig. 8 is that bidirectional screw type induces cell schematics;
Fig. 9 is bidirectional screw type subelement schematic diagram;
Figure 10 is bidirectional screw type subelement floor map;
Figure 11 is hole floor map at folding line;
Figure 12 is A-A profiles in Figure 11.
Specific embodiment
Below in conjunction with the accompanying drawings the present invention is further described.
Fig. 1 has the structural representation of the flexing induction support of bidirectional screw type induction unit for end, by end restraint Section 1, power consumption section 2 and support flat segments 3 are constituted, and end restraint section 1 is fixed between bean column node and power consumption section 2, and power consumption section 2 is solid It is scheduled on 3 two ends of support 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, T-shaped short girder steel 5 and beam columns Composition, square plate 4 are welded on 2 end of power consumption section, and two T-shaped short girder steels 5 are welded to connect with square plate 4,4 He of square plate T-shaped short girder steel 5 is respectively as shown in Fig. 5,6.Connecting plate 6 is clipped in the middle of two T-shaped short girder steels 5, and connecting plate 6 is used with T-shaped short girder steel 5 High-strength bolt connection, wherein connecting plate 6 are as shown in Figure 7.
In Fig. 3, the section 2 that consumes energy induces unit 7 to constitute along the axis direction for supporting by four bidirectional screw types.Such as Fig. 8 institutes Show, bidirectional screw type induction unit 7 is circumferentially arranged in order by six identical bidirectional screw type subelements 8 and forms a section For the space body of hexagon.As shown in Figure 9, Figure 10, bidirectional screw type subelement 8 is collinearly made up of two-by-two four pieces of triangular plates, Respectively triangular plate 1, triangular plate 2 10, triangular plate 3 11 and triangular plate 4 12, the common edge between them point Not Wei the first common edge 13, the second common edge 14 and the 3rd common edge 15, wherein the second common edge 13 is crest line, the first common edge 13 and the 3rd common edge 15 be valley line.Triangular plate is foldable outwardly along crest line, along valley line to interior folding, the outward folding Refer to that angle between the exterior normal of adjacent triangular plate becomes big, to interior folding refer to adjacent triangular plate exterior normal it Between angle diminish.
As shown in figure 4, supporting flat segments 3 to be made up of the bracing members 16 and square plate 4 of square-section, square plate 4 is welded The end of the bracing members 16 of square-section is connected on, power consumption section 2 is welded to connect with square plate 4.
As shown in Figure 11, Figure 12, equidistant hole-opening at folding line in power consumption section 2, thickness d of the hole diameter for plate, hole The distance between hole is 5d.

Claims (4)

1. the flexing induction that a kind of end has bidirectional screw type induction unit is supported, including confinement section(1)With power consumption section(2), It is characterized in that:Also flat segments are supported including one(3), the power consumption section(2)It is arranged on the support flat segments(3)Two ends, The other end of the power consumption section arranges described confinement section, and consume energy section(2)Unit is induced by least one bidirectional screw type(7)Edge The axis direction composition for supporting;Described bidirectional screw type induction unit(7)It is by m bidirectional screw type subelement(8)Edge Ring is arranged in order the space body to form that a section is regular polygon, and the side number m of regular polygon is the integer more than or equal to 3; The bidirectional screw type subelement(8)It is collinearly to be folded the space body for being formed, four pieces of triangular plates by four pieces of triangular plates two-by-two Respectively triangular plate one(9), triangular plate two(10), triangular plate three(11)With triangular plate four(12), triangular plate (9)With triangular plate two(10)It is planar parallelogram, triangular plate three(11)With triangular plate four(12)In plane It is also inside parallelogram, triangular plate one(9)With triangular plate two(10)The parallelogram of formation and triangular plate three (11)With triangular plate four(12)The angle of the parallelogram of formation is obtuse angle;Triangular 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 second public Side(14), triangular plate three(11)With triangular plate four(12)Common edge be the 3rd common edge(15), wherein the second common edge (14)For crest line, the first common edge(13)With the 3rd common edge(15)For valley line;Triangular plate is foldable outwardly along crest line, along Valley line is to interior folding;The angle being foldable outwardly between the exterior normal for referring to adjacent triangular plate becomes big, to interior folding is Refer to that the angle between the exterior normal of adjacent triangular plate diminishes.
2. the flexing induction that end according to claim 1 has bidirectional screw type induction unit is supported, it is characterised in that: The end restraint section(1)By regular polygon steel plate(4), T-shaped short girder steel(5)And connecting plate(6)Composition, regular polygon steel plate (4)It is welded on power consumption section(2)End, two T-shaped short girder steels(5)With regular polygon steel plate(4)It is welded to connect, connecting plate(6)Folder In two T-shaped short girder steels(5)Centre, connecting plate(6)With T-shaped short girder steel(5)Connected with high-strength bolt, described steel plate(4)'s Side number is more than or equal to 3.
3. the flexing induction that end according to claim 1 has bidirectional screw type induction unit is supported, it is characterised in that: The 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, it is described Steel pipe(16)The side number in section is more than or equal to 3.
4. the flexing induction that end according to claim 1 has bidirectional screw type induction unit is supported, it is characterised in that: The power consumption section(2)The hole-opening at all folding lines, a diameter of d of described hole, d are equal to plate thickness;The distance between hole It is equal, the distance is equal to 5 times of hole diameters.
CN201611011118.XA 2016-11-15 2016-11-15 A kind of end has the buckling induction support of bidirectional screw type induction unit Active CN106639462B (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101164413B1 (en) * 2011-10-31 2012-07-12 (주)대우건설 Stiffness increasing buckling-restrained braces for low-to-moderate earthquakes using friction material
WO2012108703A2 (en) * 2011-02-09 2012-08-16 조선대학교 산학협력단 Circular brace and method of constructing therewith
CN205189160U (en) * 2015-11-26 2016-04-27 兖矿东华建设有限公司 Novel buckling restrained brace device
CN205224327U (en) * 2015-10-28 2016-05-11 国核电力规划设计研究院 Draw and suppress one -way buckling restrained brace device of weak type
CN105888348A (en) * 2016-06-01 2016-08-24 东南大学 Buckling control support with diamond type energy dissipation units at ends

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012108703A2 (en) * 2011-02-09 2012-08-16 조선대학교 산학협력단 Circular brace and method of constructing therewith
KR101164413B1 (en) * 2011-10-31 2012-07-12 (주)대우건설 Stiffness increasing buckling-restrained braces for low-to-moderate earthquakes using friction material
CN205224327U (en) * 2015-10-28 2016-05-11 国核电力规划设计研究院 Draw and suppress one -way buckling restrained brace device of weak type
CN205189160U (en) * 2015-11-26 2016-04-27 兖矿东华建设有限公司 Novel buckling restrained brace device
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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