CN106639461A - Casing pipe bending induction support with length-variable four-crease type induction units - Google Patents
Casing pipe bending induction support with length-variable four-crease type induction units Download PDFInfo
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- CN106639461A CN106639461A CN201611011115.6A CN201611011115A CN106639461A CN 106639461 A CN106639461 A CN 106639461A CN 201611011115 A CN201611011115 A CN 201611011115A CN 106639461 A CN106639461 A CN 106639461A
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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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- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Environmental & Geological Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
- Vibration Dampers (AREA)
Abstract
The invention discloses a casing pipe bending induction support with length-variable four-crease type induction units. The casing pipe bending induction support is composed of end restraining sections, a bending induction section, an inner casing pipe and an outer casing pipe; the bending induction section is composed of one or more length-variable four-crease type induction units in the axial direction of the support, and the ends of the length-variable four-crease type induction units located on the two sides of the bending induction sections is each a plane perpendicular to the axial direction and with the cross section which passed through the vertex being cut off; a single length-variable four-crease type induction unit is a space body with the cross section being a polygon, and the space body is formed by m same length-variable four-crease type induction subunits arranged in the circumferential direction in sequence; and each length-variable four-crease type induction subunit is a space body formed by folding four trapezoidal plates in a same plane. According to the casing pipe bending induction support, under the effect of small earthquakes, the bending induction support keeps elasticity; and under the effect of middle earthquakes or large earthquakes, the bending induction section enters a yield stage, and hysteric energy performance of the casing pipe bending induction support can have the effect of a damper.
Description
Technical field
The invention belongs to building structure technology field, more particularly to a kind of to induce unit with change length four fold trace type
The induction of sleeve pipe flexing 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
The problem of energy difference, constitutes buckling-restrained buckling restrained brace only core outside setting sleeve pipe, the compressive buckling that constraint is supported is supported
Plate is connected with other components, and suffered load is all undertaken by central layer, and outer sleeve and packing material only constrain central layer compressive buckling,
Central layer is made to enter surrender in tension and by pressure, thus, the Hysteresis Behavior of buckling restrained brace is excellent.Buckling restrained brace
On the one hand the defect of common support tension and compression bearing capacity significant difference can be avoided, on the other hand the power consumption energy with metal damper
Power, can serve as " electric fuse " so that agent structure is substantially in elastic range in the structure.Therefore, buckling restrained brace
Application, can improve comprehensively traditional support frame middle shake and it is big shake under anti-seismic performance.
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.And consume energy in above-mentioned support the unit thickness of plate, construction etc. at the folding line are consistent with non-folding line, no
Plastic hinge is produced beneficial at folding line.In addition, these supports are made up of end restraint section, flexing section and sleeve pipe, sleeve pipe is in flexing
The outside of section, and the low order unstability to inner side is easily produced, so as to weaken the power consumption energy of support without supporting on the inside of flexing section
Power.
The content of the invention
Goal of the invention：As existing buckling restrained brace is under course under cyclic loading, it is connected with buckling restrained brace
Component or joints are larger；And under geological process, existing buckling restrained brace yield deformation position has randomness, in order to
The problem for overcoming prior art to exist, the present invention are introduced into becoming length four fold trace type induction unit on traditional common support,
Formed it is a kind of support with the sleeve pipe flexing induction for becoming length four fold trace type induction unit, be to bend from constraint is anti-in engineering structure
Prioritizing selection during bent support.
Technical scheme：For achieving the above object, the technical solution used in the present invention is：
It is a kind of to support with the sleeve pipe flexing induction for becoming length four fold trace type induction unit, by end restraint section, flexing induction section,
Inner sleeve and trocar sheath composition, the end restraint section are located at the two ends that the flexing induces section, and the flexing induction section is clipped in
Between inner sleeve and trocar sheath, the inner sleeve is connected with an end restraint section respectively with trocar sheath, it is characterised in that：Flexing
Induction section induces unit to constitute along the axis direction for supporting by least one change length four fold trace type, induces positioned at the flexing
The end of the changes length four fold trace type induction unit of section both sides is perpendicular to axis direction and to cross the cross section section on summit by one
The plane gone；The single change length four fold trace type induction unit becomes length four fold trace type subelement circumferentially by m identical
It is polygonal space body to be arranged in order and to form a section, and the polygonal side number is 2m, and m is the integer more than or equal to 2；
It is described to become length four fold trace type subelement to pass through the space body that folding is formed by four trapezoidal plates in the same plane, it is described
Four trapezoidal plates are conllinear two-by-two and intersect at a summit, are respectively trapezoidal plate one, trapezoidal plate two, three and of trapezoidal plate according to counterclockwise
Trapezoidal plate four, the common edge between them are respectively the first common edge, the second common edge, the 3rd common edge and the 4th common edge；
First common edge, the second common edge and the 3rd common edge are crest line, and the 4th common edge is valley line, adjacent trapezoidal plate along
Crest line is foldable outwardly, along valley line to interior folding；The angle being foldable outwardly between the exterior normal for referring to adjacent trapezoidal plate
Become big, refer to that the angle between the exterior normal of adjacent trapezoidal plate diminishes to interior folding；The free margins of the trapezoidal plate one and ladder
The free margins of shape plate four are equal, and both are unequal with the first common edge；The free margins of the trapezoidal plate two and trapezoidal plate three
Free margins are equal, and both are unequal with the 3rd common edge.
Described end restraint section is made up of the connecting plate that the components such as square plate, T-shaped short girder steel and beam column are reserved, square
Steel plate is welded on flexing induction section end, and two T-shaped short girder steels are welded to connect with square plate, connecting plate be clipped in two it is T-shaped short
In the middle of girder steel, connecting plate is connected with high-strength bolt with T-shaped short girder steel.
The left end of the inner sleeve is welded to connect with the square plate of left end confinement section, the right-hand member of inner sleeve and right side
The square plate of end restraint section has one section of distance not less than the 1/40 of flexing induction segment length；The right-hand member of the trocar sheath with
The square plate of right-hand end confinement section is welded to connect, and the left end of trocar sheath has one section with the square plate of left end confinement section
The 1/40 of segment length distance is induced not less than flexing.
Described flexing induction section and the gap between inner sleeve and trocar sheath are less than 5mm；The inner sleeve and overcoat
Pipe is all made up of the hollow steel pipe of circular cross-section.
Thickness of slab in flexing induction section at all folding lines is the half of plate thickness of slab, and the folding line being made up of crest line is thick
In inner surface side, the folding line being made up of valley line, thickness change is in outer surface side for degree change.
Beneficial effect：
The present invention is a kind of to be supported with the sleeve pipe flexing induction for becoming length four fold trace type induction unit, by end restraint section, flexing
Induction section, inner sleeve and trocar sheath are constituted.Flexing induction is supported using length four fold trace type induction unit is become, and component is more held
Various sections of different shapes are formed easily, supported design is more flexible.Along bearing length direction adjacent cross sectional to folding line
Length is inconsistent, is more prone to produce axial deformation in making to be supported on loading process, so as to prevent support from overall bending occurs to early
It is bent.And the change length four fold trace type induction unit in the support in flexing induction section is by pre-setting by crest line and valley line shape
Into folding line, while thickness of slab is reduced to original half at folding line, is more prone to induction and is supported under geological process, produce
High-order buckling mode, lifts the energy dissipation capacity for supporting.Inducing outside in section to be respectively provided with inner sleeve and trocar sheath in flexing makes folding
Yield line at trace expands as plastic zone, has more preferable energy dissipation capacity than common support.And internal and external casing can also be in the wrong
In bent induction section, folding line provides lateral support, is effectively improved the axial carrying capacity of support.The present invention can add in factory
Work, only needs to be connected with the built-in fitting of the components such as bolt and beam column to scene, both ensure that component quality, reduce scene again
Wet trade workload, energy-conserving and environment-protective.Support with the sleeve pipe flexing induction for becoming length four fold trace type induction unit and both have general
Constraining anti-buckling support flexible arrangement, more effectively can dissipate seismic energy the advantages of, can solve again and buckling-restrained
The problems such as supportting the component or larger joints that are connected, with good Popularizing of A.
Description of the drawings
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the profile of the structure of the present invention（Main view）；
Fig. 3 is end restraint section schematic diagram；
Fig. 4 is that flexing induces section schematic diagram；
Fig. 5 is inner sleeve schematic diagram；
Fig. 6 is trocar sheath schematic diagram；
Fig. 7 is A-A profiles in Fig. 1；
Fig. 8 is square plate schematic diagram；
Fig. 9 is T-shaped short girder steel schematic diagram；
Figure 10 is connecting plate schematic diagram；
Figure 11 induces cell schematics to become length four fold trace type；
Figure 12 is change length four fold trace type elicitor cell schematics；
Figure 13 folds frontal plane schematic diagram to become length four fold trace type induction subelement；
Figure 14 is crest line thickness of slab schematic diagram at folding line；
Figure 15 is valley line thickness of slab schematic diagram at folding line.
Specific embodiment
Below in conjunction with the accompanying drawings the present invention is further described.
As shown in Figure 1, 2, it is made up of end restraint section 1, flexing induction section 2, inner sleeve 3 and trocar sheath 4.End restraint section
1 is fixed on the two ends that flexing induces section 2.The left end of inner sleeve is welded to connect with the square plate 5 of left end confinement section 1, interior
The right-hand member of sleeve pipe has a segment distance with the square plate of right-hand end confinement section, and distance induces the 1/ of segment length not less than flexing
40；The right-hand member of trocar sheath is welded to connect with the square plate 5 of right-hand end confinement section 1, and the left end of trocar sheath is with left end about
The square plate of beam section has a segment distance, and distance induces the 1/40 of segment length nor less than flexing.As shown in Fig. 5 ~ 7, flexing is lured
Lead section 2 to be clipped between inner sleeve 3 and trocar sheath 4, flexing induction section and the gap between inner sleeve and trocar sheath are less than 5mm,
Inner sleeve 3 and trocar sheath 4 are all made up of the hollow steel pipe of circular cross-section.
As shown in figure 3, the connecting plate 7 that end restraint section 1 is reserved by components such as square plate 5, T-shaped short girder steel 6 and beam columns
Composition, square plate 5 are welded on 2 end of flexing induction section, and two T-shaped short girder steels 6 are welded to connect with square plate 7, square bar
Plate 5 and T-shaped short girder steel 6 are respectively as shown in Fig. 8,9.Connecting plate 7 is clipped in the middle of two T-shaped short girder steels 6, connecting plate 7 and T-shaped short steel
The high-strength bolt connection of beam 6, wherein connecting plate 7 are as shown in Figure 10.
According to Fig. 4, flexing induces section 2 to become length four fold trace type by 50 and induces unit 8 along the axis side for supporting
To composition, perpendicular to axis direction and cross the cross section on a summit 22 and clip the end toothed segment portion that flexing induces section 2 by one
Point, then flexing induces all sides in section end at grade.In such as Figure 11, single change length four fold trace type induction unit 8 is
By 12 identicals become length four fold trace type subelements 9 be circumferentially arranged in order a section being formed into 24 side shapes space
Body.According to Figure 12, Figure 13, become length four fold trace type subelement 8 by four trapezoidal plates in the same plane through folding
The space body composition of formation, four trapezoidal plates are conllinear two-by-two and intersect at a summit, according to be respectively counterclockwise trapezoidal plate 1,
Trapezoidal plate 2 11, trapezoidal plate 3 12 and trapezoidal plate 4 13, the common edge wherein between them are respectively the first common edge 14, second
Common edge 15, the 3rd common edge 16 and the 4th common edge 17.Described the first common edge 14, the second common edge 15 and the 3rd are public
Side 16 is crest line, and the 4th common edge 17 is valley line, and adjacent trapezoidal plate is foldable outwardly along crest line, along valley line to interior folding；
The angle being foldable outwardly between the exterior normal for referring to adjacent trapezoidal plate becomes big, refers to adjacent trapezoidal plate to interior folding
Angle between exterior normal diminishes.The free margins 18 of the trapezoidal plate one are equal with the free margins 21 of trapezoidal plate four, and both with
First common edge 14 is unequal；The free margins 19 of the trapezoidal plate two are equal with the free margins 20 of trapezoidal plate three, and both are with the
Three common edges 16 are unequal.
Thickness of slab in flexing induction section 2 at all folding lines is the half of plate thickness of slab, and the folding line being made up of crest line, thickness become
Change in inner surface side, the folding line being made up of valley line, thickness change is in outer surface side.Crest line valley line partial enlargement at folding line
As shown in Figure 14, Figure 15, in figure, letter A represents side for outer surface side, and letter b represents that side is inner surface side.
Claims (5)
1. it is a kind of to support with the sleeve pipe flexing induction for becoming length four fold trace type induction unit, by end restraint section（1）, flexing lures
Lead section（2）, inner sleeve（3）And trocar sheath（4）Composition, the end restraint section（1）Section is induced positioned at the flexing（2）Two
End, the flexing induce section（2）It is clipped in inner sleeve（3）With trocar sheath（4）Between, the inner sleeve and trocar sheath respectively with one
End restraint section connects, it is characterised in that：Flexing induces section（2）Become length four fold trace type induction unit by least one（8）Edge
The axis direction composition for supporting, and section is induced positioned at the flexing（2）The change length four fold trace type induction unit of both sides（8）End
Portion be by one perpendicular to axis direction and cross summit（22）The plane clipped of cross section；The single change length four fold trace type
Induction unit（8）Length four fold trace type subelement is become by m identical（9）It is polygon to be circumferentially arranged in order and to form a section
The space body of shape, the polygonal side number are 2m, and m is the integer more than or equal to 2；The change length four fold trace type subelement
（9）It is that four trapezoidal plates are two-by-two collinearly simultaneously through folding the space body for being formed by four trapezoidal plates in the same plane
A summit is intersected at, and trapezoidal plate one is respectively according to counterclockwise（10）, trapezoidal plate two（11）, trapezoidal plate three（12）With trapezoidal plate four
（13）, respectively the first common edge of the common edge between them（14）, the second common edge（15）, the 3rd common edge（16）With the 4th
Common edge（17）；First common edge（14）, the second common edge（15）With the 3rd common edge（16）For crest line, the 4th common edge
（17）For valley line, adjacent trapezoidal plate is foldable outwardly along crest line, along valley line to interior folding；The outward folding refers to adjacent
Trapezoidal plate exterior normal between angle become big, refer to that to interior folding the angle between the exterior normal of adjacent trapezoidal plate becomes
It is little；The free margins of the trapezoidal plate one（18）With the free margins of trapezoidal plate four（21）It is equal, and both and the first common edge（14）
It is unequal；The free margins of the trapezoidal plate two（19）With the free margins of trapezoidal plate three（20）It is equal, and both and the 3rd common edge
（16）It is unequal.
2. it is according to claim 1 to support with the sleeve pipe flexing induction for becoming length four fold trace type induction unit, its feature
It is：Described end restraint section（1）By square plate（5）, T-shaped short girder steel（6）The reserved connecting plate with the component such as beam column（7）
Composition, square plate（5）It is welded on flexing induction section（2）End, two T-shaped short girder steels（6）With square plate（5）Welding connects
Connect, connecting plate（7）It is clipped in two T-shaped short girder steels（6）Centre, connecting plate（7）With T-shaped short girder steel（6）Connected with high-strength bolt.
3. it is according to claim 2 to support with the sleeve pipe flexing induction for becoming length four fold trace type induction unit, its feature
It is：The inner sleeve（3）Left end and left end confinement section（1）Square plate（5）It is welded to connect, inner sleeve（3）'s
The square plate of right-hand member and right-hand end confinement section（5）There is one section to induce section not less than flexing（2）The distance of the 1/40 of length；Institute
State trocar sheath（4）Right-hand member and right-hand end confinement section（1）Square plate（5）It is welded to connect, trocar sheath（4）Left end with it is left
The square plate of side end confinement section（5）There is one section of distance not less than the 1/40 of flexing induction segment length.
4. it is according to claim 4 to support with the sleeve pipe flexing induction for becoming length four fold trace type induction unit, its feature
It is：Described flexing induction section（2）With inner sleeve（3）And trocar sheath（4）Between gap be less than 5mm；The inner sleeve
（3）And trocar sheath（4）All it is made up of the hollow steel pipe of circular cross-section.
5. it is according to claim 1 to support with the sleeve pipe flexing induction for becoming length four fold trace type induction unit, its feature
It is：The flexing induces section（2）In thickness of slab at all folding lines be plate thickness of slab half, the folding line being made up of crest line is thick
In inner surface side, the folding line being made up of valley line, thickness change is in outer surface side for degree change.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611011115.6A CN106639461B (en) | 2016-11-15 | 2016-11-15 | A kind of casing buckling induction support with elongated degree four folding line types induction unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611011115.6A CN106639461B (en) | 2016-11-15 | 2016-11-15 | A kind of casing buckling induction support with elongated degree four folding line types induction unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106639461A true CN106639461A (en) | 2017-05-10 |
| CN106639461B CN106639461B (en) | 2018-11-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611011115.6A Active CN106639461B (en) | 2016-11-15 | 2016-11-15 | A kind of casing buckling induction support with elongated degree four folding line types induction unit |
Country Status (1)
| Country | Link |
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| CN (1) | CN106639461B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3796017A (en) * | 1972-04-24 | 1974-03-12 | M Meckler | Hydraulic structural apparatus |
| JPH10238159A (en) * | 1997-02-26 | 1998-09-08 | Taisei Corp | Vibration-damping construction and vibration-damping structure |
| CN201305932Y (en) * | 2008-12-06 | 2009-09-09 | 青岛理工大学 | Supporting device with energy consumption and shock absorption |
| CN102605873A (en) * | 2012-03-22 | 2012-07-25 | 北京工业大学 | Buckling restrained brace with energy dissipation device sandwiched with lead layer and provided with steel plates at two ends and method for manufacturing buckling restrained brace |
| WO2012108703A2 (en) * | 2011-02-09 | 2012-08-16 | 조선대학교 산학협력단 | Circular brace and method of constructing therewith |
| KR20120123916A (en) * | 2011-05-02 | 2012-11-12 | 서울시립대학교 산학협력단 | Post reinforcing structure for buckling of braces in the steel moment connection frame |
| CN105507444A (en) * | 2016-01-15 | 2016-04-20 | 东南大学 | Inner sleeve constraint folding steel plate energy dissipation support |
| CN105507445A (en) * | 2016-01-15 | 2016-04-20 | 东南大学 | Outer casing pipe constraint folding steel plate energy consumption support |
| CN105544763A (en) * | 2016-01-15 | 2016-05-04 | 东南大学 | Internal and external double-sleeve restraining folded steel plate energy-consuming support |
| CN105888348A (en) * | 2016-06-01 | 2016-08-24 | 东南大学 | Buckling control support with diamond type energy dissipation units at ends |
-
2016
- 2016-11-15 CN CN201611011115.6A patent/CN106639461B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3796017A (en) * | 1972-04-24 | 1974-03-12 | M Meckler | Hydraulic structural apparatus |
| JPH10238159A (en) * | 1997-02-26 | 1998-09-08 | Taisei Corp | Vibration-damping construction and vibration-damping structure |
| CN201305932Y (en) * | 2008-12-06 | 2009-09-09 | 青岛理工大学 | Supporting device with energy consumption and shock absorption |
| WO2012108703A2 (en) * | 2011-02-09 | 2012-08-16 | 조선대학교 산학협력단 | Circular brace and method of constructing therewith |
| KR20120123916A (en) * | 2011-05-02 | 2012-11-12 | 서울시립대학교 산학협력단 | Post reinforcing structure for buckling of braces in the steel moment connection frame |
| CN102605873A (en) * | 2012-03-22 | 2012-07-25 | 北京工业大学 | Buckling restrained brace with energy dissipation device sandwiched with lead layer and provided with steel plates at two ends and method for manufacturing buckling restrained brace |
| CN105507444A (en) * | 2016-01-15 | 2016-04-20 | 东南大学 | Inner sleeve constraint folding steel plate energy dissipation support |
| CN105507445A (en) * | 2016-01-15 | 2016-04-20 | 东南大学 | Outer casing pipe constraint folding steel plate energy consumption support |
| CN105544763A (en) * | 2016-01-15 | 2016-05-04 | 东南大学 | Internal and external double-sleeve restraining folded steel plate energy-consuming support |
| 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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| CN106639461B (en) | 2018-11-27 |
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