CN109057026A - A kind of assembling type node based on austenite SMA- steel plate group and martensite SMA stick - Google Patents
A kind of assembling type node based on austenite SMA- steel plate group and martensite SMA stick Download PDFInfo
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- CN109057026A CN109057026A CN201811106125.7A CN201811106125A CN109057026A CN 109057026 A CN109057026 A CN 109057026A CN 201811106125 A CN201811106125 A CN 201811106125A CN 109057026 A CN109057026 A CN 109057026A
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
- E04B1/2403—Connection details of the elongated load-supporting parts
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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
- E04H9/024—Structures with steel columns and beams
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
- E04B1/2403—Connection details of the elongated load-supporting parts
- E04B2001/2406—Connection nodes
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
- E04B1/2403—Connection details of the elongated load-supporting parts
- E04B2001/2418—Details of bolting
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
- E04B1/2403—Connection details of the elongated load-supporting parts
- E04B2001/2448—Connections between open section profiles
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
- E04B1/2403—Connection details of the elongated load-supporting parts
- E04B2001/2457—Beam to beam connections
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Environmental & Geological Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Joining Of Building Structures In Genera (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Abstract
The invention discloses a kind of assembling type node based on austenite SMA- steel plate group and martensite SMA stick.The node includes i section steel beam, frictional high-strength bolts, high-strength steel rectangle end plate, Dog-bone style steel plate, austenite SMA Dog-bone style plate, austenite SMA disk spring, martensite SMA stick and anchor block.By the steel-SMA Dog-bone style board group with high-strength friction bolt connection, the web of the girder steel is connected by martensite SMA stick and high-strength rectangle end plate for the upper lower flange of the girder steel.Further, using on the anchor block being threadedly secured on steel beam web plate, the other end is fixed using high-strength bolt nut and applies pretightning force to it for wherein one end of the martensite SMA stick.SMA- steel plate group enhances the restorability of node, martensite SMA stick increases the energy dissipation capacity of node, and can realize that post-seismic deformation restores by simply heating, which, which is applied to steel frame antidetonation, will significantly improve structural seismic performance, and reduce and repair difficulty, saves rehabilitation cost.
Description
Technical field:
The invention belongs to structural engineering fields, and in particular to one kind is based on austenite SMA- steel plate group and martensite SMA stick
Assembling type node.
Background technique:
In anti-seismic structure, the traditional design concept of steel frame is to guarantee existence of the structure under earthquake, pursuit
Reliable mechanism and stable energy dissipation capability.Therefore, for the ductility of utilization steel frame, beam-ends, suspension column are allowed generally for
Inelastic deformation occurs simultaneously with the connecting node in structure, to balance the energy input of strong earthquakes.Although may be implemented in this way
The target of life security, but the most of components for following the structure of this theory design can all bear non-resilient change in earthquake
Shape, and it is irrecoverable, so this structure is lost with potential macroeconomy.
In order to reduce the residual deformation of geological process lower member, and solve rehabilitation expense height after shake and to repair difficulty big
Problem, it has been proposed that good system not only needs to meet intensity, rigidity and the ductility of structure and the design requirement of energy consumption, also
Should be ensured that certain self-resetting capability, could meet in this way geological process flowering structure have it is smaller even without residual deformation
It is required that.And node is as component part important in structure, the quality of design directly affects total and makees in external load
Performance under, so by guaranteeing that the Self-resetting characteristic of node come the self-resetting capability for realizing system is one of optinal plan,
And it realizes that Self-resetting characteristic has and applies prestressing force and using the two methods of intellectual material with Self-resetting performance.
Intellectual material with Self-resetting performance includes marmem (shape memory alloy, abbreviation SMA)
Material, with superior shape memory effect and superelastic properties, the former refers to that material deforms by load action
After lay down load original shape can be restored by heating material, the latter refers to that material unloads after being deformed by load action
Original shape can independently be restored by falling load, and both characteristics correspond respectively to two kinds of phases of marmem: low temperature
Phase martensitic phase and high-temperature-phase austenite phase, i.e. low-temperature phase martensite SMA hysteresis loop is full, has good energy dissipation behavior,
It needs to restore original shape by simply heating after deformation；High-temperature-phase austenite SMA has good super-elasticity special
Property, unloading after deformation can restore original shape automatically, but its energy dissipation capacity is weaker.
In existing design of node, in order to realize structure can recovery characteristics, largely use Ovshinsky in node
Body SMA material, although Self-resetting can be realized well, due to its super elastic characteristics, the rigidity of node is reduced, energy dissipation capacity
Weaken, so structure integrally will appear very big deformation in the ringing of earthquake, sends out other components other than node
Raw moderate finite deformation and irrecoverable, not only gives unsafe feeling in this way but also will cause certain loss.
Summary of the invention:
In order to solve the above technical problems, the present invention propose it is a kind of based on austenite SMA- steel plate group and martensite SMA stick
Assembling type node.Node is located remotely from 1/3 beam length of bean column node, can be reduced the moment of flexure that bean column node junction is subject in this way and be made
With can be by the concentration of plastic deformation in steel frame on this node of structure.This node is by martensite and austenite SMA
The components such as manufactured disk spring, bar and Dog-bone style plate and cooperate the use of Dog-bone style steel plate come realize its from
Reset the balance with energy dissipation behavior.Node guarantees other by the compound energy consumption of Dog-bone style steel plate and martensite SMA stick
Position is in elastic stage in deformation process, by martensite SMA and austenite SMA can recovery characteristics realize node
Restorability, by the concentration of plastic deformation of structure this node austenite SMA Dog-bone style plate, martensite SMA stick, Ovshinsky
At body SMA disk spring, can restore can be autonomous with austenite SMA Dog-bone style plate by heating for martensite SMA stick after deformation
Restore, thus both realized node can recovery characteristics in turn ensure its energy dissipation capacity, a possibility that destroying is reduced, after reducing shake
Residual deformation and loss.
Compared with traditional structure, this structure has following innovative point: (1) use of martensite SMA and austenite SMA can be real
Make node that there is preferable energy dissipation behavior while existing Self-resetting.Wherein, martensite SMA stick energy dissipation behavior is preferable, leads to after deformation
The i.e. recoverable deformation of heating is crossed, austenite SMA Dog-bone style plate has superelastic properties, and unloading can restore automatically after deformation
Deform (2) austenite SMA Dog-bone style plate and Dog-bone style steel plate combination, not only ensure that node energy-dissipating property and
Restorability, and Dog-bone style steel plate can also be effectively prevented SMA material since super-elasticity brings deficiency --- it bends part
It is bent.(3) steel-SMA and board group-stick compound use, can make the deformation under load action be concentrated mainly on component made of SMA
On, a possibility that other components are substantially at elastic stage, reduce destruction.(4) the made rectangle end plate of high-strength steel is in Liang Liang
Utilization in splicing node can effectively reduce end plate thickness, and the globality of strengthened beam reduces node weight.Simultaneously in high-strength spiral shell
Austenite SMA disk spring is added between the nut of bolt and high-strength rectangle end plate, the axial deformation along beam direction can be absorbed, from
And minimize pulling force of the high-strength bolt under shear action.And the super-elasticity of austenite SMA disk spring is being under pressure
When energy consumption and contractility can also be provided, thus improve its connection cycle performance.
To achieve the above object, it is as follows to provide technical solution by the present invention:
A kind of assembling type node based on austenite SMA- steel plate group and martensite SMA stick, is mutually butted including two
I section steel beam；The upper and lower surface on the edge of a wing of two i section steel beams is connected by austenite SMA Dog-bone style plate on one side,
Another side is connected by Dog-bone style steel plate；The web of two i section steel beams is welded with anchor block；Martensite SMA stick two
End is fixed with two anchor blocks respectively；It is welded with end plate on the web at two i section steel beam ends adjacent to one another, two end plates
Cross-section is connected by the high-strength bolt configured with austenite SMA disk spring.
Further to improve, the anchor block includes screwed anchor block and non-threaded anchor block；Two I-shapeds
One is welded with screwed anchor block on the web of shape girder steel, another is welded with non-threaded anchor block；The geneva
Screw thread is carved at body SMA stick both ends, and martensite SMA stick one end is threadedly coupled with the anchor block of screw thread, and the other end passes through non-threaded
Anchor block is connect with the high-strength bolt nut thread of anchoring martensite SMA stick.
It is further to improve, when fixing martensite SMA stick with high-strength bolt nut, martensite SMA stick is applied and is pre-tightened
Power makes i section steel beam and anchor block be in the state being pressurized.
It is further to improve, the edge of a wing, the edge of a wing, Dog-bone style steel plate and the austenite SMA Dog-bone style of the girder steel
Corresponding circular bolt holes are provided on plate, and by high-strength friction bolt connection, austenite SMA Dog-bone style plate is located at
The upside of girder steel top flange and the downside of lower flange, Dog-bone style steel plate be located at girder steel top flange downside and lower flange it is upper
Side.
Further to improve, the austenite SMA dog bone connecting plate and Dog-bone style steel plate are assemblied in martensite SMA
The surface and underface of stick, martensite SMA stick and austenite SMA Dog-bone style plate play shape can reset feature, simultaneously
It consumes energy in conjunction with Dog-bone style steel plate.
Further to improve, the end plate is high-strength steel rectangle end plate；Two-sided fillet welding on the web cross section of the girder steel
There is high-strength steel rectangle end plate, circular bolt holes is provided on high-strength steel rectangle end plate, circular bolt holes, which pass through, high-strength bolt, high-strength
Austenite SMA disk spring is configured between bolt and high-strength rectangle end plate.
Further to improve, the austenite SMA Dog-bone style plate, Dog-bone style steel plate be connected, anchor block, geneva
Body SMA stick, end plate are symmetrical arranged along the junction of two i section steel beams.
Further to improve, the assembling type node node is located remotely from 1/3 beam length of bean column node.
The invention has the following advantages:
1. the present invention uses marmem, the brittle break problem of geological process lower node is not only improved, and
Structure self-resetting capability under geological process is improved, improves and the problem of larger residual deformation occurs.
2. the present invention uses the combination of marmem and steel, stick and board group, structure composite energy-dissipating property ensure that
While optimize the mechanical characteristic of node, make that SMA material plays its Self-resetting characteristic and steel play its energy dissipation behavior and obtain
Organic cooperation.
3. the energy consumption for taking full advantage of martensite SMA is special present invention uses the combination of martensite SMA and austenite SMA
The Self-resetting characteristic of property and austenite SMA, makes the energy dissipation behavior of node and Self-resetting characteristic obtain organic balance.
4. convenient for assemblyization construction of the invention, speeds up the work, and be conveniently replaceable after destruction of a node, so as to continue
Normal use, reparation difficulty and cost after reducing shake.
5. node proposed by the present invention is full symmetric about neutral axis, so performance one of the node under positive and negative Moment
It causes, for bearing sagging moment, under sagging moment effect, under the Dog-bone style steel plate, attachment beam on the upside of attachment beam lower flange
Austenite SMA Dog-bone style plate on the downside of the edge of a wing and the martensite SMA stick on the downside of web bear pulling force effect, on end plate
Pulling force should be undertaken by bolt, but in order to reduce pulling force suffered by bolt, joined austenite SMA disk spring, thus will
Axial force is transferred on austenite SMA spring and martensite SMA stick, while being also reduced on the edge of a wing suffered by frictional high-strength bolts
Shearing.The presence of Dog-bone style steel plate has not only played energy consumption effect together with SMA member, while also preventing martensite
Local buckling occurs for SMA stick and austenite SMA Dog-bone style plate.The shearing of node is mainly undertaken by frictional high-strength bolts,
Frictional force between end plate face and face has also taken on the shearing of sub-fraction.Therefore the deformation of node is concentrated mainly on martensite
On SMA stick, austenite SMA spring and austenite SMA Dog-bone style plate, so node component being capable of runback after load removal
Position is restored to the original state by simply heating.
Detailed description of the invention:
Fig. 1 is present invention present position schematic diagram in structural system
Fig. 2 is detailed schematic of the present invention
Fig. 3 is front view of the present invention
Fig. 4 is side view of the present invention
Fig. 5 is top view of the present invention
Fig. 6 is SMA rod iron and anchor block schematic diagram
Fig. 7 is Dog-bone style plate schematic diagram
Fig. 8 is girder steel, anchor block and end plate schematic diagram
Fig. 9 is the schematic diagram of SMA disk spring
Wherein, the number of all parts are as follows: 1, screwed anchor block 2, the girder steel top flange 3 close to column side, Austria
Family name's body SMA Dog-bone style plate 4, Dog-bone style steel plate 5, frictional high-strength bolts 6, non-threaded anchor block 7, anchoring geneva
The high-strength bolt nut 8 of body SMA stick, girder steel top flange 9, the side stick B martensite SMA threaded area 10, martensite far from column side
SMA stick 11, the end plate 12 of the beam of close column side, austenite SMA disk spring 13, the end plate 14 of the beam of separate column side, height
Strength bolt 15, the girder steel lower flange 16 close to column side, the girder steel lower flange 17 far from column side, the side martensite SMA stick A screw thread
Area 18, close to column side beam anchor block internal screw thread 19, far from column side beam anchor block hole.
Specific embodiment:
To keep the technical problem to be solved in the present invention, technical solution and advantage clearer, below in conjunction with attached drawing and tool
Body embodiment is described in detail.
The present invention provides a kind of assembling type node based on austenite SMA- steel plate group and martensite SMA stick, such as Fig. 2 institute
Show, including 1, i section steel beam 2, Dog-bone style steel plate 4, austenite SMA Dog-bone style plate 43, martensite SMA stick 4
Root 4, austenite SMA disk spring 5, threaded anchor block 4, non-threaded anchor block 45, high-strength steel rectangle end plate 4
It is a, in which:
1, it after above-mentioned element factory standardized production processing, is pre-positioned on factory lines, to girder steel, dog bone type
Connecting plate, high-strength bolt on high-strength steel rectangle end plate link position carry out aperture, on the steel beam web plate close to column side
4 anchor blocks in it is interior quarter with the matched screw thread of martensite SMA bar, far from column side steel beam web plate on 4 anchoring
It is provided in block and the matched hole of martensite SMA bar.
2, by high-strength steel rectangle end plate and the fillet welding of anchor block positioning double-sided at the web of girder steel, martensite SMA stick is set
In anchor block corresponding on steel beam web plate, wherein one end (end A) is tightened with threaded anchor block by screw thread, the other end (B
End) non-threaded anchor block is directly stretched out, it is fixed with high-strength bolt nut, and pretightning force is applied to it.
3, at the high-strength steel rectangle end plate on web, with configured with austenite SMA disk spring high-strength bolt come
It is attached, austenite SMA disk spring is located between the nut of high-strength bolt and high-strength steel rectangle end plate.
4, at the edge of a wing of beam, frictional high-strength bolts sequentially pass through the upside Dog-bone style plate of top flange, on girder steel
The top flange of beam is attached by the circular bolt holes of the downside Dog-bone style plate on the edge of a wing, top flange, frictional high-strength bolts
Sequentially pass through the round spiral shell of the upside Dog-bone style plate of lower flange, the downside Dog-bone style plate of girder steel lower flange, lower flange
The lower flange of beam is attached by keyhole, and austenite SMA Dog-bone style plate is located under the upside and lower flange of beam top flange
Side, Dog-bone style steel plate are located at the downside of beam top flange and the upside of lower flange.
Node of the invention has used the combination of marmem and steel, the combination of board group and stick and austenite
The combination of SMA and martensite SMA have good energy dissipation capacity and self-resetting capability, and energy dissipation capacity and self-resetting capability are adjustable,
Repair amount is low after shake, and overall economic efficiency is high.
Claims (8)
1. a kind of assembling type node based on austenite SMA- steel plate group and martensite SMA stick, it is characterised in that: including two phases
The i section steel beam mutually docked；The upper and lower surface on the edge of a wing of two i section steel beams passes through austenite SMA Dog-bone style on one side
Plate is connected, and another side is connected by Dog-bone style steel plate；The web of two i section steel beams is welded with anchor block；Martensite
SMA stick both ends are fixed with two anchor blocks respectively；It is welded with end plate on the web at two i section steel beam ends adjacent to one another, two
The cross-section of end plate is connected by the high-strength bolt configured with austenite SMA disk spring.
2. the assembling type node according to claim 1 based on austenite SMA- steel plate group and martensite SMA stick, feature
It is, the anchor block includes screwed anchor block and non-threaded anchor block；One on the web of two i section steel beams
A to be welded with screwed anchor block, another is welded with non-threaded anchor block；It is carved with spiral shell in the martensite SMA stick both ends
Line, martensite SMA stick one end are threadedly coupled with the anchor block of screw thread, and the other end passes through non-threaded anchor block and anchoring martensite
The high-strength bolt nut thread of SMA stick connects.
3. the assembling type node according to claim 2 based on austenite SMA- steel plate group and martensite SMA stick, feature
Be, when fixing martensite SMA stick with high-strength bolt nut, to martensite SMA stick apply pretightning force, make i section steel beam and
Anchor block is in the state being pressurized.
4. the assembling type node according to claim 1 based on austenite SMA- steel plate group and martensite SMA stick, feature
It is, is provided on the edge of a wing of the girder steel, the edge of a wing, Dog-bone style steel plate and austenite SMA Dog-bone style plate corresponding
Circular bolt holes, and by high-strength friction bolt connection, austenite SMA Dog-bone style plate is located at the upside of girder steel top flange
With the downside of lower flange, Dog-bone style steel plate is located at the downside of girder steel top flange and the upside of lower flange.
5. the assembling type node according to claim 4 based on austenite SMA- steel plate group and martensite SMA stick, feature
Be, the austenite SMA dog bone connecting plate and Dog-bone style steel plate be assemblied in martensite SMA stick surface and just under
Side, martensite SMA stick and austenite SMA Dog-bone style plate play shape can reset feature, in combination with Dog-bone style steel
Plate consumes energy.
6. the assembling type node according to claim 1 based on austenite SMA- steel plate group and martensite SMA stick, feature
It is, the end plate is high-strength steel rectangle end plate；Dihedral angle is welded with high-strength steel rectangle end plate on the web cross section of the girder steel,
Circular bolt holes are provided on high-strength steel rectangle end plate, circular bolt holes, which pass through, high-strength bolt, high-strength bolt and high-strength rectangular end
Austenite SMA disk spring is configured between plate.
7. the assembling type node according to claim 1 based on austenite SMA- steel plate group and martensite SMA stick, feature
Be, the austenite SMA Dog-bone style plate, Dog-bone style steel plate be connected, anchor block, martensite SMA stick, the equal edge of end plate
The junction of two i section steel beams is symmetrical arranged.
8. the assembling type node according to claim 1 based on austenite SMA- steel plate group and martensite SMA stick, feature
It is, the assembling type node node is located remotely from 1/3 beam length of bean column node.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811106125.7A CN109057026B (en) | 2018-09-21 | 2018-09-21 | Assembly type node based on austenite SMA-steel plate group and martensite SMA rod |
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| CN201811106125.7A CN109057026B (en) | 2018-09-21 | 2018-09-21 | Assembly type node based on austenite SMA-steel plate group and martensite SMA rod |
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Cited By (6)
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|---|---|---|---|---|
| CN109680819A (en) * | 2019-02-19 | 2019-04-26 | 湖南大学 | A kind of Self-resetting node suitable for modular architectural |
| CN110219369A (en) * | 2019-07-10 | 2019-09-10 | 重庆大学 | Buckling-restrained beam column Self-resetting node and assemble method based on steel-SMA board group element |
| CN110439112A (en) * | 2019-08-20 | 2019-11-12 | 华南理工大学 | It is a kind of to exempt from prestressing force toughness steel construction by what hinge column was combined with elastic reset beam |
| CN111779189A (en) * | 2020-08-17 | 2020-10-16 | 汤仁超 | Assembled steel construction crossbeam structure |
| CN113982113A (en) * | 2021-12-03 | 2022-01-28 | 上海泰大建筑科技有限公司 | Three-section beam and column structure and combined frame type structure thereof |
| CN114687461A (en) * | 2022-04-25 | 2022-07-01 | 王兵菊 | Disc type building steel beam mounting structure and construction method thereof |
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