CN106639462B - A kind of end has the buckling induction support of bidirectional screw type induction unit - Google Patents

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

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Publication number
CN106639462B
CN106639462B CN201611011118.XA CN201611011118A CN106639462B CN 106639462 B CN106639462 B CN 106639462B CN 201611011118 A CN201611011118 A CN 201611011118A CN 106639462 B CN106639462 B CN 106639462B
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CN
China
Prior art keywords
plate
triangular plate
support
bidirectional screw
screw type
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CN201611011118.XA
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Chinese (zh)
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CN106639462A (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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Priority to CN201611011118.XA priority Critical patent/CN106639462B/en
Publication of CN106639462A publication Critical patent/CN106639462A/en
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Publication of CN106639462B publication Critical patent/CN106639462B/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 invention discloses a kind of ends, and there is the buckling of bidirectional 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 bidirectional screw type induction unit along the axis direction of support in the support flat segments both ends, the section that consumes energy;Bidirectional screw type induction unit is circumferentially to be arranged successively to form a section and be positive the space body of m polygon by m bidirectional screw type subelement, and bidirectional screw type subelement is the space body for collinearly folding formation two-by-two by four pieces of triangular plates.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

A kind of end has the buckling induction support of bidirectional screw type induction unit
Technical field
The invention belongs to building structure technology fields, have bidirectional 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
Goal of the invention: since existing buckling restrained brace has the composition such as core plate, outer sleeve and packing material, manufacture craft is multiple It is miscellaneous, and the component or joints that are connected with buckling restrained brace are larger;Of the existing technology, this hair in order to overcome the problems, such as It is bright to introduce on bidirectional screw type induction unit to traditional common support, it is single with the induction of bidirectional screw type to form a kind of end The buckling of member induces support, is preferential selection when selecting buckling restrained brace in engineering structure.
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 bidirectional 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 bidirectional screw type induction unit along the axis direction group of support At;The bidirectional screw type induction unit is circumferentially to be arranged successively to form a section by m bidirectional screw type subelement Be positive the space body of m polygon, and the number of edges m of the regular polygon is the integer more than or equal to 3;The bidirectional screw type subelement For the space body for collinearly folding formation two-by-two by four pieces of triangular plates, four pieces of triangular plates are respectively triangular plate one, triangle Plate two, triangular plate three and triangular plate four, triangular plate one and triangular plate two are planar parallelogram, triangle Plate three and triangular plate four are planar also parallelogram, the parallelogram that triangular plate one and triangular plate two are formed The angle of the parallelogram formed with triangular plate three and triangular plate four is obtuse angle;Triangular plate one and triangular plate two Common edge is the first common edge, and the common edge of triangular plate two and triangular plate three is the second common edge, triangular plate three and three The common edge of angular plate four is third common edge, wherein the second common edge is crest line, the first common edge and third common edge are paddy Line;Triangular plate is foldable outwardly along crest line, is folded inward along valley line, and the outward folding refers to adjacent triangular plate Angle between exterior normal becomes larger, and the angle being folded inward between the exterior normal for referring to adjacent triangular plate becomes smaller.
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 bidirectional screw type induction unit to induce support, by end restraint section, energy consumption Section and support flat segments are constituted.Unit is induced using bidirectional screw type in support, there are more clear advantages: one, two-way 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 Body unstability.Two, the folding line that 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.Three, bidirectional screw type induction unit occurs respectively along axial direction Torsion clockwise and anticlockwise, but ensure that bidirectional screw type induces unit end cross-sectional always without relative rotation, thus Make to support stress more reasonable.Four, bidirectional screw type induction unit passes through the pre-set folding line formed by valley line and crest line, The hole-opening at folding line simultaneously is more easier induction and is supported under geological process, can only deform along the axial direction of support, sends out Raw preset high order mode surrender, while biggish strain can occur at folding line to form yield line, reach consumption Dissipate the purpose of seismic energy.Five, the support flat segments combined with buckling induction section, it is ensured that supported required axial direction just Degree.The number of bidirectional screw type induction unit in length and buckling induction section by changing support flat segments, adjustable The axial rigidity of support and the relationship of energy dissipation capacity.The present invention avoids jacketed outside core dissipative member in manufacture craft Cylinder, the processes such as grouting between sleeve and core dissipative member, simplify processing and making process, reduce project cost.And The present invention can only need the built-in fitting for using the components such as bolt and beam column to connect, both ensure that component in factory process to scene Quality, and reduce the wet construction workload at scene, energy conservation and environmental protection.End has the buckling induction of bidirectional screw type induction unit Support had both had many advantages, such as the flexible arrangement of general buckling restrained brace, good energy-dissipating property, and can control bending for support Curved formula prevents component from occurring to early complete buckling, while can be to avoid adding sleeve and filling outside core dissipative member The processes such as slurry effectively simplify manufacturing procedure, have 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 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 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 bidirectional 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 section 2 is made of four bidirectional screw type induction units 7 along the axis direction of support.Such as Fig. 8 institute Show, bidirectional screw type induction unit 7 is circumferentially arranged successively by six identical bidirectional screw type subelements 8 forms a section For the space body of hexagon.As shown in Figure 9, Figure 10, bidirectional screw type subelement 8 is collinearly made 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 point between them Not Wei the first common edge 13, the second common edge 14 and third common edge 15, wherein the second common edge 13 be crest line, the first common edge 13 and third common edge 15 be valley line.Triangular plate is foldable outwardly along crest line, is folded inward along valley line, the outward folding Refer to that the angle between the exterior normal of adjacent triangular plate becomes larger, be folded inward refer to adjacent triangular plate exterior normal it Between angle become smaller.
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 is welded It connects in the end of the bracing members 16 of square-section, the section 2 that consumes energy and square plate 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 d of plate, hole The distance between hole is 5d.

Claims (3)

1. there is the buckling of bidirectional 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 setting of the energy consumption section confinement section, energy consumption section (2) induce unit (7) edge by least one bidirectional screw type Support axis direction composition;Bidirectional screw type induction unit (7) is by m bidirectional screw type subelement (8) edge Circumferential direction is arranged successively the space body to form that a section is regular polygon, and the number of edges m of regular polygon is the integer more than or equal to 3; The bidirectional screw type subelement (8) is the space body for collinearly folding formation two-by-two by four pieces of triangular plates, four pieces of triangular plates Respectively triangular plate one (9), triangular plate two (10), triangular plate three (11) and triangular plate four (12), triangular plate one (9) and triangular plate two (10) is planar parallelogram, and triangular plate three (11) and triangular plate four (12) are in plane It is inside also parallelogram, the parallelogram and triangular plate three that triangular plate one (9) and triangular plate two (10) are formed (11) and the angle of the parallelogram of triangular plate four (12) formation is obtuse angle;Triangular plate one (9) and triangular plate two (10) common edge is the first common edge (13), and the common edge of triangular plate two (10) and triangular plate three (11) is public for second The common edge of side (14), triangular plate three (11) and triangular plate four (12) is third common edge (15), wherein the second common edge It (14) is crest line, the first common edge (13) and third common edge (15) are valley line;Triangular plate is foldable outwardly along crest line, along Valley line is folded inward;The angle being foldable outwardly between the exterior normal for referring to adjacent triangular plate becomes larger, and being folded inward is Refer to that the angle between the exterior normal of adjacent triangular plate becomes smaller;Energy consumption section (2) hole-opening at all folding lines, the hole Hole dia is d, and d is equal to plate thickness;The distance between hole be it is equal, the distance be equal to 5 times of hole diameters.
2. there is the buckling of bidirectional 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 bidirectional 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 (16) 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 (16) 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 (16) section is more than or equal to 3.
CN201611011118.XA 2016-11-15 2016-11-15 A kind of end has the buckling induction support of bidirectional screw type induction unit 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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