CN110145042A - A kind of energy-consuming device and Self-resetting node - Google Patents
A kind of energy-consuming device and Self-resetting node Download PDFInfo
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- CN110145042A CN110145042A CN201910391571.5A CN201910391571A CN110145042A CN 110145042 A CN110145042 A CN 110145042A CN 201910391571 A CN201910391571 A CN 201910391571A CN 110145042 A CN110145042 A CN 110145042A
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- 238000005265 energy consumption Methods 0.000 claims abstract description 39
- 229910000831 Steel Inorganic materials 0.000 claims description 76
- 239000010959 steel Substances 0.000 claims description 76
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- 238000004088 simulation Methods 0.000 abstract description 2
- 235000010627 Phaseolus vulgaris Nutrition 0.000 description 10
- 244000046052 Phaseolus vulgaris Species 0.000 description 10
- 238000000034 method Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000006073 displacement reaction Methods 0.000 description 5
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000011068 loading method Methods 0.000 description 4
- 230000033001 locomotion Effects 0.000 description 4
- 230000006378 damage Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 241000826860 Trapezium Species 0.000 description 2
- 229910000754 Wrought iron Inorganic materials 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000009510 drug design Methods 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 239000003351 stiffener Substances 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- 206010044565 Tremor Diseases 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 210000003108 foot joint Anatomy 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000000116 mitigating effect Effects 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000000844 transformation Methods 0.000 description 1
Classifications
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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
- E04B1/185—Connections not covered by E04B1/21 and E04B1/2403, e.g. connections between structural parts of different material
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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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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Abstract
The invention discloses a kind of energy-consuming device and Self-resetting nodes, the energy-consuming device includes main component, locating part, spring, the first connector, the second connector and the first support and the second support for connecting Self-resetting node, the main component strip rod piece, and pass through the connection of bolt realization energy consumption main element and two supports；And spring and dentation occlusion structure are set in the junction of the second support and main component.Find that the residual deformation of node of the present invention is substantially zeroed by analog simulation, energy-consuming device of the invention can effectively eliminate residual deformation, can reach optimum state using the node Self-resetting performance, anti-seismic performance of this energy-consuming device.
Description
Technical field
The invention belongs to structural construction protection against and mitigation of earthquake disasters technical fields, and in particular to a kind of energy-consuming device and Self-resetting node.
Background technique
Runback bit architecture is a kind of using residual deformation after reducing building structure shake as the new structure of target, by structure
Middle introducing prestressing force, control structure maximum distortion, while structure residual deformation is reduced or even eliminated, enable building structure after shake
Fast quick-recovery uses.The runback bit architecture of rational design can meet the performance objective of setting, therefore application runback bit architecture is to build
If one of the important channel in recoverable function city.In recent years, runback bit architecture is widely concerned by researchers at home and abroad.
The modes such as brass sheet friction, top-seat-angle steel are surrendered, damper is flexible are mostly used in current existing Self-resetting node
Energy consumption, the characteristics of such dissipative member, are that its energy consumption mechanism is almost the same when moving back and forth, thus node exist when resetting compared with
Big resistance has an adverse effect to the reset of node.
Summary of the invention
In view of the deficienciess of the prior art, the object of the present invention is to provide a kind of energy-consuming device and Self-resetting node, solution
Certainly existing Self-resetting node energy consumption is insufficient or is not easy the problem of resetting.
In order to solve the above-mentioned technical problem, the present invention is realised by adopting the following technical scheme:
A kind of energy-consuming device, including main component, locating part, spring, the first connector, the second connector and for connecting
The first support and the second support of Self-resetting node；The main component includes the of intermediate energy consumption section and section both ends of consuming energy
One linkage section and the second linkage section；First linkage section is connected on the first support by the first connector；Described
The opening extended inward from its end is provided on two linkage sections, the opening is plugged on the second connector, and second connects
The both ends connection of fitting second support；It is convex that the side of second linkage section along opening direction is provided with one section of first dentation
It rises, one end of the locating part is provided with the second detent projection being engaged with the first detent projection, the locating part, spring
It is serially connected on the second connector between the second support and the second linkage section, wherein the both ends of spring are squeezed withstand on locating part respectively
On the second support.
Specifically, first connector and the second connector is bolt assembly；It is arranged on first support
There is the first hole passed through for the first connector, is provided with the 4th hole passed through for the first connector on first linkage section；
It is provided with the second hole passed through for the second connector on second support, is provided on the locating part for the second connection
The third hole that part passes through, the spring are set on the second connector, and the opening opens up direction and the second connector
The body of rod it is vertical.
Specifically, the main component global shape is the strip body of rod, wherein the first linkage section and the second linkage section
Area of section is greater than the area of section of energy consumption section, first linkage section, energy consumption section, the second linkage section integration connection.
Specifically, the cross sectional shape of first detent projection be right triangular shape, one of the first detent projection
Right-angle side connection integrated with the second linkage section, another right-angle side are located at energy consumption section side；The bevel edge of first detent projection exists
Projected length on second linkage section is more than or equal to the first detent projection perpendicular to the length of the right-angle side in the second linkage section direction；
Second detent projection is the symmetrical structure being engaged with the first detent projection.
Specifically, the opening is U-shaped, the bottom shape of opening and the second connector shape are matched arc-shaped；Institute
The distance between two inner walls for the opening stated are 1~2mm bigger than the diameter of the second connector.
Specifically, first support is plate body structure, two the first supports are symmetricly set on by the first connector
First linkage section two sides, the Components Shape matching of the coupled Self-resetting node of the shape of the first support.
Specifically, second support is plate body structure, two the second supports are symmetricly set on by the second connector
Second linkage section two sides are provided with the spring and locating part between each second support and the second linkage section；Second
The shape of seat is matched with the Components Shape for the Self-resetting node being connected.
Specifically, the locating part is plate body structure, the third hole is arranged in the center of locating part, locating part its
In second detent projection is provided in a plate face.
The invention also discloses a kind of Self-resetting nodes, including vertical applied force component, horizontal force component and setting are perpendicular
Dissipative member at primary structure member and horizontal force component connecting node, the dissipative member are energy consumption of the present invention
Device.
Specifically, the vertical applied force component is steel core concrete column, the horizontal force component is i shaped steel
Beam, wherein i-shape steel beam includes short girder steel and long girder steel, and short girder steel both ends are connected to steel core concrete column and long girder steel
End is provided with end plate in the junction of short girder steel and long girder steel；One end face of end plate is fixed on short girder steel end face, and end plate is another
Be arranged that there are two the connecting plates perpendicular to end plate end face on one end face, between two connecting plates between be separated with and be inserted into for long steel beam web plate
Gap, long steel beam web plate is bolted with two connecting plates；The energy-consuming device is symmetricly set on long steel beam web plate
Two sides are symmetrical arranged there are two energy-consuming device at the upper lower flange of the every side of long steel beam web plate, wherein the on energy-consuming device
One support is fixed on the end plate, and the second support is fixed on long steel beam flange plate.
Compared with prior art, the beneficial effects of the present invention are:
The present invention uses strip rod piece as energy consumption main component, and realizes energy consumption main component by bolt and be used to connect
The connection of two supports of Self-resetting node；Spring especially is set with the junction of main component in the second support and dentation is engaged
Structure is slided between the detent projection of the second linkage section and the detent projection of limit plate under the effect of energy-consuming device Compression
It moving, the elastic force after sliding due to spring is engaged the detent projection of locating part with the detent projection of the second linkage section again,
The bearing capacity for overcoming gear tooth friction to generate only is needed during this, since the rigidity of spring, initial precompression design principle are to guarantee
Gullet plate is bonded the second linkage section, therefore the bearing capacity is negligible, and therefore, pressurized process energy consumption is effectively dropped almost without drag
The low resistant function of the process energy-consuming device.
It is found by l-G simulation test, residual deformation is substantially zeroed after Self-resetting node repeated loading of the invention, illustrates this
The energy-consuming device of invention can effectively eliminate residual deformation, therefore use the node Self-resetting performance, anti-seismic performance of this energy-consuming device
It can reach optimum state.
Other features and advantages of the present invention will the following detailed description will be given in the detailed implementation section.
Detailed description of the invention
Fig. 1 is energy-consuming device overall structure assembling schematic diagram of the present invention.
Fig. 2 is energy-consuming device overall structure diagram of the present invention.
Fig. 3 is energy-consuming device partial top view of the present invention.
Fig. 4 is the partial enlarged view of energy-consuming device the first detent projection and the second detent projection of the invention.
Fig. 5 is the T-type Self-resetting bean column node schematic diagram in the embodiment of the present invention.
Fig. 6 is the assembling schematic diagram of Fig. 5.
Fig. 7 is T-type Self-resetting bean column node FEM model schematic diagram.
Fig. 8 is Stress Map of the T-type Self-resetting bean column node in 0.02rad angle of displacement.
Fig. 9 is stress of the energy-consuming device with spring and sawtooth in 0.01rad angle of displacement in T-type Self-resetting bean column node
Cloud atlas.
Figure 10 is the moment-rotation relation of T-type Self-resetting bean column node.
Each label indicates in figure are as follows:
1- energy-consuming device, 2- vertical applied force component, 3- horizontal force component, 4- presstressed reinforcing steel, 5- anchor plate, 6- put more energy into
Rib；
11- main component, 12- locating part, 13- spring, the first connector of 14-, the second connector of 15-, the first support of 16-,
The second support of 17-；
111- energy consumption section, the first linkage section of 112-, the second linkage section of 113-, 114- opening, the first detent projection of 115-,
The 4th hole 116-；
The second detent projection of 121-, 122- third hole；
The first screw rod of 141-, the first nut of 142-, the first washer of 143-；
The second screw rod of 151-, the second nut of 152-, 153- second packing ring；
The first hole 161-；The second hole 171-；
The short girder steel of 31-, 32- long girder steel, 33- end plate, 34- connecting plate, the gap 35-；
321- long steel beam web plate, 322- long steel beam flange plate.
Explanation is further explained in detail to particular content of the invention below in conjunction with the drawings and specific embodiments.
Specific embodiment
Specific embodiments of the present invention are given below, it should be noted that the invention is not limited to implement in detail below
Example, all equivalent transformations made on the basis of the technical solutions of the present application each fall within protection scope of the present invention.
In the present invention, in the absence of explanation to the contrary, the noun of locality used such as " bottom, top " typically refer to
It is defined on the basis of the drawing of respective drawings, " inside and outside " refers to the inner and outer of corresponding component profile.
Embodiment 1
Present embodiment discloses a kind of energy-consuming devices, as shown in Figure 1, the device includes main component 11, locating part 12, spring
13, the first connector 14, the second connector 15 and the first support 16 and the second support 17 for connecting Self-resetting node.
Wherein, main component 11 includes that the first linkage section 112 and second of intermediate energy consumption section 111 and section both ends of consuming energy connects
Section 113 is connect, specifically, 11 global shape of main component is the strip body of rod, wherein the first linkage section 112 and the second linkage section 113
Area of section be greater than energy consumption section 111 area of section, with guarantee the surrender section of main component betide middle part.First linkage section
112, consume energy section 111, the 113 integration connection of the second linkage section, and in the present embodiment, the first linkage section 112 connects with energy consumption section 111
The place of connecing is provided with the arc-shaped transition section of section gradual change, and the second linkage section 113 is also equipped with section gradual change with energy consumption 111 junction of section
Arc-shaped transition section；The cross sectional shape for the section 111 that consumes energy is rectangle, the cross sectional shape of the first linkage section 112 and the second linkage section 113
Also be rectangle, energy consumption section 111, the first linkage section 112,113 three of the second linkage section upper and lower surfaces flush, side is logical
Cross the changeover portion connection of two end section gradual changes.Optionally, the stage shape for the section 111 that consumes energy can also be circle, with specific reference to using
Situation determines.
In the present embodiment, the first connector 14 and the second connector 15 are bolt assembly, which is conventional
Connection bolt, be made of the first screw rod 141, the first nut 142 and the first washer 143, the second connector 15 and the first connection
Part 14 is identical, is made of the second screw rod 151, the second nut 152 and second packing ring 153.In the present embodiment, the first connector 14
It is in the same plane with the second connector 15 and be parallel to each other.
It is provided with the first hole 161 passed through for the first connector 14 on first support 16, is provided on the first linkage section 112
For the 4th hole 116 that bolt passes through, the first support 16 is connected on the first linkage section 112 by the first connector 14.
In the present embodiment, the first support 16 is plate body structure, and two the first supports 16 are symmetrical by the first connector 14
It is arranged in 112 two sides of the first linkage section, the two sides of the first linkage section 112 are set as and the matched plane of 16 plate face of the first support
Shape.The Components Shape of the coupled Self-resetting node of the global shape of first support 16 matches, such as in the present embodiment, the
One support global shape is the small trapezium structure in the big one end in one end, and big end with the steel member at Self-resetting node for connecting.
The opening 114 for extending inward from its end and the second connector 15 being supplied to pass through is provided on second linkage section 113,
Opening 114 opens up that direction is vertical with 15 body of rod of the second connector, and the middle section setting of the second connector 15 is being open 114
Interior, both ends connect the second support 15, and locating part 12 and spring 13 are connected between the second support 15 and the second linkage section 113.The
Opening direction is provided with one section of first detent projection 115 on the side wall of two linkage sections 113, one end of locating part 12 be provided with
Second detent projection 121 of the first detent projection 115 occlusion, locating part 12 are connected to the second connector 15 by third hole 122
On, spring 13 is set on the second connector 15, and the both ends of spring 13 are squeezed withstand on locating part 12 and the second support 17 respectively.
First detent projection 115 is engaged with the second detent projection 121 and makes main component 11 along 12 direction of limit plate list
To movement, specifically, the cross sectional shape of the first detent projection 115 is right triangular shape, the first detent projection in the present embodiment
The connection integrated with the second linkage section 113 of 115 right-angle side, another right-angle side are located at energy consumption 111 side of section；First tooth
Projected length b of the bevel edge of shape protrusion 115 on the second linkage section 113 is more than or equal to the first detent projection perpendicular to the second connection
The length a of the right-angle side of Duan Fangxiang, as shown in Figure 4.The cross sectional shape of second detent projection 121 is also right triangular shape,
It is symmetrical structure with the first detent projection 115, the two can be engaged.The structure setting of first detent projection and the second detent projection
So that sawtooth occlusion will not generate destruction, prevent power transmission from failing.
The second hole 171 passed through for the second connector 15 is provided on second support 17, the second support 17 is connected to second
On connector 15.Wherein, two the second supports 17 are symmetricly set on 113 two sides of the second linkage section by the second connector 15, often
Spring 13 and locating part 12 are provided between a second support 17 and the second linkage section 113.
Wherein, the setting maximum length of the first detent projection 121 is determined according to the elongation percentage of energy consumption 111 steel of section, minimum
Value is determined according to performance objective.Performance objective is the response that building is set in the earthquake of different reoccurrence, after reducing shake
Residual deformation, reach fast quick-recovery using function performance objective in can by the seismic wave under a plurality of corresponding return period calculate tie
The accumulation amount of side-shift of structure, and go out based on certain reliability calculating the elongation of main component 11, the first detent projection is determined with this
121 minimum length.
The present invention can design the length of energy consumption section 111 according to performance objective, to meet structure under different reoccurrence earthquake
Deformation requirements.
Specifically, the second support 17 is plate body structure, the shape of the second support 17 and the runback being connected in the present embodiment
The Components Shape matching of position node, for example in a specific embodiment, the second support is the small trapezium structure in the big one end in one end,
The big end of second support is fixed on the steel construction piece of node.
Illustrate the connection procedure of the first support 16 and the second support 17 below by way of a specific embodiment: when Self-resetting section
When point is T-type Self-resetting bean column node as shown in Figure 5, which is symmetrically arranged at the web two sides of i-shaped beams,
And the every side of web is on the inside of the upper and lower flange plate there are two settings, i.e., in total by four energy-consuming devices, wherein the first support
It is arranged on the end plate 33 of short girder steel.For the setting of second support in girder steel side, the second support 17 is small trapezoidal in the big one end in one end
Structure, the big end of the second support 17 are fixed on the edge of a wing inside of i-shaped beams, and the first support is quadrangle plate body, wherein side
End plate connection on side and short steel column.
The U-shaped structure of opening 114 of the present embodiment, 114 bottom shape of being open are set as and 15 shape of the second connector
It is matched arc-shaped, when the second connector 15, which is moved to, to be contacted with the bottom of opening 114, the first detent projection 115 and second
Detent projection 121 is engaged, and the second linkage section 113 suffers restraints completely along the freedom degree of main component length direction, by open bottom
Being set as arc-shaped is that it is preferably matched with screw rod.
In addition, the distance between two inner walls of opening 114 are 1~2mm bigger than the diameter of the second connector 15, guarantee that second connects
Fitting 15 can move freely in opening 114.
Locating part 12 in the present embodiment is plate body structure, and third hole 122 is arranged in the center of locating part 12, locating part its
In be provided with the second detent projection 121 in a plate face.
Energy-consuming device of the invention can provide stable energy consumption and rigidity for node, using the Self-resetting section of this energy-consuming device
Point has preferable anti-seismic performance and is easy to reset.
Embodiment 2
Present embodiment discloses a kind of Self-resetting node, which includes vertical applied force component 2, horizontal force structure
Part 3 and the dissipative member being arranged at 3 connecting node of vertical applied force component 2 and horizontal force component, dissipative member are embodiment 1
The energy-consuming device 1 of record.
It should be noted that vertical applied force component 2 in the present embodiment include but is not limited to steel column, steel core concrete column,
Profile steel concrete column and concrete column, horizontal force component 3 include but is not limited to girder steel, girder with rolled steel section en cased in concrete, beams of concrete.Or
The Self-resetting foot joint of above-mentioned vertical applied force component can also be used in person's Self-resetting node.
Specifically, in the present embodiment, as shown in Figure 5 and Figure 6, which is steel core concrete column, horizontal
Primary structure member 3 is i-shape steel beam, wherein i-shape steel beam includes short girder steel 31 and long girder steel 32, short 31 both ends of girder steel difference
It is connected to 32 end of steel core concrete column and long girder steel, the junction of short girder steel 31 and long girder steel 32 is provided with end plate 33；End
One end face of plate 33 is fixed on short 31 end face of girder steel, and there are two the companies perpendicular to 33 end face of end plate for setting on end plate other end
Fishplate bar 34, between two connecting plates 34 between be separated with gap 35 for the insertion of long steel beam web plate 321, long steel beam web plate 321 and two
Connecting plate 34 is bolted.
Energy-consuming device 1 is symmetricly set on long 321 two sides of steel beam web plate, at the upper lower flange of the every side of long steel beam web plate 321
Energy-consuming device 1 there are two being symmetrical arranged, wherein the first support 16 on energy-consuming device 1 is fixed on the end plate 33, the
Two supports 17 are fixed on long steel beam flange plate 322.
It is symmetrically arranged with presstressed reinforcing steel 4 in long 321 two sides of steel beam web plate, anchor plate 5 is provided on long girder steel, the prestressing force
The both ends of muscle 4 are connected between end plate 33 and anchor plate 5.In addition, being set at the connecting node of end plate 33 and short girder steel 31
It is equipped with ribbed stiffener 6, ribbed stiffener is also equipped at anchor plate.
When Self-resetting node geological process longer by the return period, sidesway occurs for structure, and node opens open and close repeatedly
It closes, energy-consuming device 1 will wave with node and occur the variation of integrally stretching, shortening at this time.The energy consumption process master of energy-consuming device
It is divided into two stages,
First stage: when the second connector 15 is located at the oral area of U-shaped opening 114, i.e. the second connector 15 can be opened U-shaped
When being moved in mouth 114.At load-bearing initial stage, when the first support plate 16 of energy-consuming device and the second support plate 17 are moved toward one another and (led
Body part 11 is pressurized) when, the first detent projection 115 of the second linkage section 113 is slided with the second detent projection 121 of limit plate 12
It moves, when slippage is more than the occlusion serrated vertical when projected length of the energy-consuming device direction of motion, due to the effect of spring 13
Serrated grip faces will slide into next stage, since the rigidity of spring, initial precompression design principle are to guarantee limit plate in the present invention
12 the second linkage sections 113 of fitting, therefore the energy-consuming device pressurized process effectively reduces process energy consumption dress almost without drag
The resistant function set；When 17 back movement of the first support 16 and the second support (i.e. 11 tension of main component), due to the second dentation
Protrusion 121 is engaged with the first detent projection 115, therefore the second linkage section 113 is by kinematic constraint；With node rocking tendency after
Continuous to increase, when the section 111 that consumes energy is more than its elastic limit, energy consumption section 111 starts surrender energy consumption.
Second stage: as node opens repeatedly, is closed, energy consumption section 111 is constantly elongated, and the of the second linkage section 113
It is constantly slid between one detent projection 115 and the second detent projection 121 of limit plate 12, when the second connector 15 touches
When the bottom of the opening 114 of the first linkage section 113, i.e., second connection end 113 is complete along the freedom degree of energy-consuming device length direction
It suffers restraints.At load-bearing initial stage, when the first support plate 16 of energy-consuming device and the second support plate 17 move toward one another (i.e. main component 11
It is pressurized) when, main component 11 is since energy consumption 111 length of section is bigger than the length of cross section both direction, the boundary condition of energy consumption rod iron 1
Unstability occurs to be hinged；When 17 back movement of the first support 16 and the second support (i.e. 11 tension of main component), main component 11
111 tension of energy consumption section surrender.Because the stability bearing capacity of energy consumption section 12 is than surrender low bearing capacity, pass through the Self-resetting of rational design
The precompression of node can overcome the stability bearing capacity of energy consumption main component, reach node reset purpose.
In the above description unless specifically defined or limited otherwise, the terms such as " setting " therein, " connection " should be done
It broadly understood, for example, it may be being fixedly connected, be also possible to dismantling connection or integral；It can be and be directly connected to, be also possible to
Be indirectly connected with etc..For the ordinary skill in the art, above-mentioned term can be understood in this skill as the case may be
Concrete meaning in art scheme.
Finite element analysis is carried out to the T-type Self-resetting bean column node in embodiment 2 below, is obtained using this energy-consuming device
Mechanical property, Self-resetting performance and the anti-seismic performance of node:
(1) model foundation
As shown in fig. 7, establishing a T-type Self-resetting bean column node based on Abaqus, pillar is mixed using square steel tube in model
Solidifying soil component, Liang Caiyong welded H section steel component.Wherein the side length of square steel tube inside fills out C40 coagulation for 400mm with a thickness of 20mm
Soil；The depth of section of welded H section steel beam is 500mm, and width 300mm, web thickness 14mm, the edge of a wing is with a thickness of 20mm.It adopts
4 energy-consuming devices are used to be symmetrically distributed on the inside of steel beam flange as the damage member of node.Girder steel middle part arrangement two 1 × 7,
1860MPa grades of presstressed reinforcing steels, area of section 140mm2, length 2240mm, structural initial pre stress 558MPa.
Steel use ideal elastoplastic model, elastic modulus E=206000MPa, and Poisson's ratio takes υ=0.3, and consume energy rod iron
Yield strength takes fyThe yield strength of=235MPa, remaining steel take fy=345MPa.Concrete uses this structure of Plastic Damage mould
Type, presstressed reinforcing steel use ideal elastoplastic model, elasticity modulus EPT=19500MPa.Using Abaqus/Explicit mould
Block calculates this node, and to simplify the analysis, toothed segment makees rigid body consideration.It is further applied load, controls in beam-ends by Bit andits control loading method
System displacement determines that every grade recycles one according to 0.0025rad, 0.0050rad, 0.01rad, 0.02rad, 0.03rad node rotation
It is secondary.
(2) interpretation of result
Fig. 8 is stress of the T-type Self-resetting bean column node in 0.02rad angle of displacement, central sill, column component stress compared with
It is small and be in elastic stage；Due to prestressed effect, stress is larger but still in elastic shape at presstressed reinforcing steel anchoring in beam
State；Tension side main component 11 has been surrendered.
Fig. 9 is stress of the energy-consuming device in 0.01rad angle of displacement, and wherein the energy consumption section 111 of main component has entered
Plasticity, other components are in elastic stage, illustrate to be provided with detent projection limit plate 12 can operative constraint main component the
Two linkage sections 113.
Figure 10 is Moment Rotation hysteresis loop (wherein, M expression nodal moment, the θ expression length of T-type Self-resetting bean column node
Beam, short beam junction relative rotation), due to using Abaqus/Explicit module calculate, load in sawtooth sliding generate compared with
Big kinetic energy, curve has to tremble a little, but still can reasonably reflect the stress of node during loading.The curve is in obvious
Double flag shapes, hysteretic loop it is more full.Load initial stage, node closure, rigidity are held essentially constant；As load increases,
The energy consumption section 111 of main component initially enters plasticity, and the slope of curve reduces, but moment of flexure still keeps propradation, illustrate node have compared with
Good ductility；When load declines, energy consumption section 111 discharges flexible deformation, while under the action of prestressing force, the modeling for the section 111 that consumes energy
Property deformation eliminated by the sliding of the first detent projection 115 and the second detent projection 121 on limit plate on the second linkage section,
It is closed with posterior nodal point；The force-mechanism and Moment Rotation hysteresis loop of Opposite side loading interior joint are similar to positive load.Node is more
Residual deformation is substantially zeroed after secondary load, illustrates that the energy-consuming device can effectively eliminate residual deformation, using this energy-consuming device
Node Self-resetting performance, anti-seismic performance can reach optimum state.
Specific technical features described in the above specific embodiments, in the case of no contradiction, Ke Yitong
It crosses any suitable way to be combined, as long as it does not violate the idea of the present invention, should equally regard it as presently disclosed
Content.
Claims (10)
1. a kind of energy-consuming device, which is characterized in that including main component (11), locating part (12), spring (13), the first connector
(14), the second connector (15) and the first support (16) and the second support (17) for connecting Self-resetting node；
The main component (11) includes the first linkage section (112) and the of intermediate energy consumption section (111) and section both ends of consuming energy
Two linkage sections (113)；First linkage section (112) is connected on the first support (16) by the first connector (14)；Institute
The opening (114) extended inward from its end is provided on the second linkage section (113) stated, the opening is plugged on second
On connector (15), the both ends connection of the second connector (15) second support (17)；The side of second linkage section (113)
Opening direction is provided with one section of first detent projection (115), one end of the locating part (12) is provided with and the first dentation
Second detent projection (121) of raised (115) occlusion, the locating part (12), spring (13) are serially connected in the second support (17)
On the second connector (15) between the second linkage section (113), wherein the both ends of spring (13) are squeezed withstand on locating part respectively
(12) and on the second support (17).
2. energy-consuming device as described in claim 1, which is characterized in that first connector (14) and the second connector
It (15) is bolt assembly；The first hole (161) passed through for the first connector is provided on first support (16), it is described
The first linkage section (112) on be provided with the 4th hole (116) passed through for the first connector；
The second hole (171) passed through for the second connector (15), the locating part are provided on second support (17)
(12) the third hole (122) passed through for the second connector (15) is provided on, the spring (13) is set in the second connector
(15) on, the opening (114) to open up direction vertical with the body of rod of the second connector (15).
3. energy-consuming device as described in claim 1, which is characterized in that main component (11) global shape is elongated rods
Body, wherein the area of section of the first linkage section (112) and the second linkage section (113) is greater than the area of section of energy consumption section (111), institute
The integrated connection of the first linkage section (112), energy consumption section (111), the second linkage section (113) stated.
4. energy-consuming device as described in claim 1, which is characterized in that the cross sectional shape of first detent projection (115)
For right triangular shape, a right-angle side of the first detent projection (115) is integrated with the second linkage section (113) to be connected, another
A right-angle side is located at energy consumption section (111) side；Projection of the bevel edge of first detent projection (115) on the second linkage section (113)
Length is more than or equal to the first detent projection perpendicular to the length of the right-angle side in the second linkage section direction；
Second detent projection (121) is the symmetrical structure being engaged with the first detent projection (115).
5. energy-consuming device as described in claim 1, which is characterized in that the opening (114) is U-shaped, the bottom of opening (114)
Portion's shape and the second connector (15) shape are matched arc-shaped；The distance between described two inner walls of opening (114) are than the
Big 1~the 2mm of diameter of two connectors (15).
6. energy-consuming device as described in claim 1, which is characterized in that first support (16) be plate body structure, two
First support (16) is symmetricly set on the first linkage section (112) two sides, the shape of the first support (16) by the first connector (14)
The Components Shape of the coupled Self-resetting node of shape matches.
7. energy-consuming device as described in claim 1, which is characterized in that second support (17) be plate body structure, two
Second support (17) is symmetricly set on the second linkage section (113) two sides, each second support (17) by the second connector (15)
The spring (13) and locating part (12) are provided between the second linkage section (113)；The shape of second support (17) with
The Components Shape for the Self-resetting node being connected matches.
8. energy-consuming device as described in claim 1, which is characterized in that the locating part (12) is plate body structure, described
At the center of locating part (12), locating part is wherein provided with second detent projection in a plate face for third hole (122) setting
(121)。
9. a kind of Self-resetting node, including vertical applied force component (2), horizontal force component (3) and setting are in vertical applied force component
(2) and the dissipative member at horizontal force component (3) connecting node, which is characterized in that the dissipative member is claim 1
To 6 described in any item energy-consuming devices (1).
10. Self-resetting node as claimed in claim 9, which is characterized in that the vertical applied force component (2) is steel tube concrete
Earth pillar, the horizontal force component (3) are i-shape steel beam, wherein i-shape steel beam includes short girder steel (31) and long girder steel
(32), short girder steel (31) both ends are connected to steel core concrete column and long girder steel (32) end, in short girder steel (31) and long steel
The junction of beam (32) is provided with end plate (33)；
One end face of end plate (33) is fixed on short girder steel (31) end face, and there are two perpendicular to end plate for setting on end plate other end
(33) connecting plate (34) of end face, between two connecting plates (34) between be separated with gap (35) for long steel beam web plate (321) insertion,
Long steel beam web plate (321) is bolted with two connecting plates (34)；
The energy-consuming device (1) is symmetricly set on long steel beam web plate (321) two sides, in the upper of long steel beam web plate (321) every side
There are two being symmetrical arranged at lower flange energy-consuming device (1), wherein the first support (16) on energy-consuming device (1) is fixed on institute
On the end plate (33) stated, the second support (17) is fixed on long steel beam flange plate (322).
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Cited By (1)
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| CN110939211A (en) * | 2019-12-23 | 2020-03-31 | 西安建筑科技大学 | High-energy-consumption composite damper and energy consumption method thereof |
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