CN105507439B - A kind of piston type filling compression spring Self-resetting energy dissipation brace - Google Patents
A kind of piston type filling compression spring Self-resetting energy dissipation brace Download PDFInfo
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- CN105507439B CN105507439B CN201510822723.4A CN201510822723A CN105507439B CN 105507439 B CN105507439 B CN 105507439B CN 201510822723 A CN201510822723 A CN 201510822723A CN 105507439 B CN105507439 B CN 105507439B
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- piston head
- outer sleeve
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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
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
- E04B1/98—Protection against other undesired influences or dangers against vibrations or shocks; against mechanical destruction, e.g. by air-raids
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Environmental & Geological Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
- Fluid-Damping Devices (AREA)
Abstract
A kind of piston type filling compression spring Self-resetting energy dissipation brace, belongs to energy-consumption supporting member, and piston type friction Self-resetting support is mainly made of left linkages, left baffle, outer sleeve, piston head, friction plate, backing plate, high-strength bolt, metal coil spring；Piston head upper and lower surface opens up groove, is filled with friction plate in groove, and high-strength bolt penetrates outer tube, piston head and upper and lower friction plate successively, and wherein bolt penetrates the position of outer tube and opens up bar-shaped trough；One group of metal coil spring is placed between right baffle-plate and piston head, and another group of metal coil spring is placed between right shell body and piston head；Left connecting rod is connect with right baffle-plate, and right connecting rod is connect with piston head, is punched among right shell body, so that right connecting rod can stretch out except outer sleeve.Piston type friction Self-resetting support mainly realizes good energy dissipation capacity and runback bit function by rubbing part and runback bit position.The present invention is used in the lateral resistant member in structure and bridge engineering construction field.
Description
Technical field
The invention belongs to energy-consumption supporting member, it is related to the disaster reduction and prevention field of civil engineering more particularly to a kind of novel
Energy-consumption supporting member-piston type fills compression spring Self-resetting energy dissipation brace, with good energy dissipation capacity and runback bit function.
Background technology
In January, 2009 in the earthquake engineering second stage Cooperative Research Program meeting of the U.S. NEES/E-defense, America and Japan
Scholar is put forward for the first time the general orientation as earthquake engineering cooperation by " can repair function city ".Chinese scholar is clearly finished within 2011
The new concept of structure Aseismic Design-recoverable function structure.Recoverable function anti-seismic structure refers to earthquake (sets up defences or rarely occurred earthquake)
It is not required to repair or slightly repair under the use state of part that afterwards its structure for using function can be restored, and structural system is easy to build
It makes and safeguards, life cycle cost high efficiency.Currently, runback bit architecture includes mainly three kinds of forms：(1) post-tensioned prestressing beam column section
Point：Allow bean column node opening and closing during geological process, so that structure is resetted by horizontal prestressing force；(2) body is waved
System：Allow the vertical supporting member of structure to upwarp in basic junction to wave, so that structure is answered by dead weight or vertical prestressing
Position；(3) Self-resetting supports：Support not only undertakes energy-dissipating and shock-absorbing effect, while providing Self-resetting power makes structure reset.First two is certainly
Resetting structure system is required for changing the original node connection type of agent structure or vertical bearing system, and Self-resetting support is then
The original supporting member of replacing structure is only needed, can make structure that there is Self-resetting without doing any variation to agent structure system
Ability, thus other opposite self-centering systems have inherent advantage, no matter are reinforced all to newly-built structure design or existing structure
Have great importance, is paid more and more attention in recent years.
In order to solve the problems, such as that support energy consumption and Self-resetting, domestic and foreign scholars expand numerous studies to it.Currently, domestic
The Self-resetting support that outer scholar has developed is broadly divided into two classes according to the principle that support Self-resetting restoring force generates：Energy dissipating portion with
Self-resetting system is connected in parallel；Energy dissipating portion connect installation with Self-resetting Cascade System, and support section and runback bit position pass through
It is connected in series with the rigidity for increasing structure and energy consumption.Viscous fluid energy consumption is wherein broadly divided into according to support energy consumption principle, friction consumes
It can be with flow of metal energy consumption；It is broadly divided into shape-memory alloy wire (twisted wire), steel strand wires and spring according to restoring force material is provided.
Above-mentioned various Self-resetting supports can realize self-resetting capability while energy consumption substantially, but there are also shortcoming, examples
If the energy dissipating portion Self-resetting support in parallel with Self-resetting system is more more complex than constructing mostly with traditional support phase, to processing work
Skill requires very high, and more difficult finds suitable material self- recoverage prestressed material, the work requirements condition of marmem
Compare strictly, and expensive, the automatic recovery ability of high strength steel strand is poor, and the Self-resetting restoring force ability that spring provides has
Limit；The Self-resetting support structure of energy dissipating portion and Self-resetting Cascade System is simple, but stretches out the shape note of restraining tube unit
Recalling alloy bar material cannot be long, otherwise shape memory alloy bar material may compressive buckling, but shape memory alloy bar material is not yet
Can be too short, otherwise shape memory alloy deformation is more than that can enter the stress reinforced stage after recoverable strain, and marmem is only
With ability is born, do not have bearing capacity.Therefore, next research is focused primarily on simple structure, and working mechanism is clear
Self-resetting energy dissipation brace research and development.
Invention content
The purpose of invention is that occur excessive residual deformation in order to solve traditional support under big shake or middle shake effect and add
Safeguarded after big shake and the problem of reconstructed cost, and at present the construction complexity of a large amount of Self-resetting energy dissipation braces and making process it is numerous
Simple structure that is trivial, and proposing, easily a kind of piston type fills compression spring Self-resetting energy dissipation brace to processing and fabricating.
The scheme that the present invention takes to solve above-mentioned technical problem is：Piston type filling compression spring Self-resetting support mainly passes through
Good energy dissipation capacity and runback bit function are realized with runback bit position in friction part.
The friction part：The friction part is mainly by left connecting rod, right baffle-plate, outer sleeve, piston head, right company
Bar, right shell body, friction plate, backing plate, bolt are constituted.What outer sleeve was square, certain part upper and lower surface difference among outer sleeve
It opens there are one bar shaped groove, upper and lower two pieces of backing plates are respectively overlay in two bar shaped grooves up and down, and left baffle is connected to
In the both ends of the surface of outer sleeve, punch among right shell body；
Piston head is located at surface and is provided in the outer sleeve of bar shaped groove part, the upper and lower surface of piston head also respectively open one it is recessed
Shape slot, upper and lower two pieces of friction plates are embedded in the baltimore groove of piston head upper and lower surface respectively；Bolt sequentially passes through upper padding plate, outer sleeve
Upper surface bar shaped groove, upper friction plate, piston head, lower friction plate, outer sleeve lower surface bar shaped groove, lower bolster, and will be upper
Backing plate, outer sleeve, upper friction plate, piston head, lower friction plate, lower bolster link together；Left connecting rod is connected on right baffle-plate, right
Connecting rod is connected to piston head right end, and right connecting rod passes through punching among right shell body to stretch out except outer tube；When supporting member tension
Or when being pressurized, outer sleeve and the opposite sliding of piston head, at this time friction have partly started energy consumption effect.
Design two parallel bolts side by side in an axial direction.Bolt is high-strength bolt.
The runback bit position：The runback bit position is made of two groups of metal coil springs, and one group is positioned over a left side
Between baffle and piston head, another group is positioned between right shell body and piston head, and two metal coil springs are applied precompressed respectively
Power is simultaneously filled in outer sleeve, in this way when left linkages have relative displacement, no matter piston type friction support tension or is pressurized
Always there is one group of metal coil spring to be in pressured state to ensure the realization of self-resetting capability.
The present invention working mechanism be：Axial force suffered by the piston type friction support be more than friction part provided it is quiet
When frictional force, left connecting rod and right connecting rod begin with relative displacement, outer sleeve and the opposite sliding of piston head, and friction part starts at this time
Energy consumption is worked.When device starts unloading, compression metal spring first restores its deformation, and self- recoverage is provided for entire supporting member
Power.Due to the presence of metal spring precompression, and left and right respectively arranges one group, and no matter piston type friction support is in tension also
It is pressured state, always has one group of metal spring to be in pressured state to provide certain restoring force, ensure the reality of runback bit function
It is existing.
The advantage of the invention is that：
The present invention piston type friction Self-resetting support, damping effect is apparent under geological process, and with it is good from
Reset function is mainly reflected in the following：
1, the support efficiently solves traditional support and excessive residual deformation occurs under big shake or middle shake effect and add
It is safeguarded and the traditional problem of reconstructed cost after big shake；
2, no matter piston type friction support is in tension or pressured state, always has one group of metal spring to be in compression shape
State, such metal spring can provide certain restoring force, it is ensured that the runback bit function of support；
3, the support utilizes piston principle, and simple structure, making is easy to process, and working mechanism and stress performance are simply bright
Really.
Description of the drawings
Fig. 1 is the E-E longitudinal sections of Fig. 2 piston types friction Self-resetting support；
Fig. 2 is the positive vertical view of piston type friction Self-resetting support；
Fig. 3 is the A-A cross-sectional views of Fig. 1 piston types friction Self-resetting support；
Fig. 4 is the B-B cross-sectional views of Fig. 1 piston types friction Self-resetting support；
Fig. 5 is the C-C cross-sectional views of Fig. 1 piston types friction Self-resetting support；
Fig. 6 is the D-D cross-sectional views of Fig. 1 piston types friction Self-resetting support；
Drawing reference numeral：1 outer sleeve, 2 metal coil springs, 3 piston heads, 4 friction plates, 5 backing plates, 6 right baffle-plates, 7 right shell bodies,
8 left connecting rods, 9 right connecting rods, 10 high-strength bolts.
Specific implementation mode
Specific implementation mode：Structure and the implementation of piston type friction Self-resetting support is described with reference to the drawings.
Friction part is made of left connecting rod, outer sleeve, piston head, right connecting rod, friction plate, backing plate, high-strength bolt.Housing
A bar-shaped trough is respectively opened among the upper and lower surface of cylinder, two pieces of backing plates are respectively overlay on the slot of outer sleeve upper and lower surface, right baffle-plate
It is welded on the left end of outer tube, right shell body is welded on the right end of outer tube, punches among right shell body.The upper and lower surface of piston head
A baltimore groove is respectively opened, two pieces of friction plates are distinguished in the slot of fixed piston head upper and lower surface, and one group of high-strength bolt penetrates successively
Upper padding plate, upper outer sleeve, upper friction plate, piston head, lower friction plate, lower outer sleeve, lower bolster connect together.Left connecting rod
It being welded on outer sleeve, right connecting rod is welded on piston head right end, and punching among right shell body is stretched out except outer sleeve, when
When supporting member is tension or in compression, energy consumption is played in outer sleeve and the opposite sliding of piston head, friction part.
Two groups of metal coil springs pressed through in advance, one group is positioned between right baffle-plate and piston head, and another group is positioned over the right side
Between baffle and piston head, metal coil spring only has compressive capacity, therefore metal coil spring is applied precompression
And be filled between casing, in this way when left linkages have relative displacement, always have one group of metal coil spring be in pressured state with
Ensure the realization of self-resetting capability.
Claims (4)
1. a kind of piston type filling compression spring Self-resetting support, which is characterized in that main includes friction part and runback bit position；
The friction part is mainly by left connecting rod, right baffle-plate, outer sleeve, piston head, right connecting rod, right shell body, friction plate, pad
Plate, high-strength bolt are constituted；What outer sleeve was square, it is logical to have a bar shaped for certain part upper and lower surface among outer sleeve
Slot, upper and lower two pieces of backing plates are respectively overlay in two bar shaped grooves up and down, and left baffle is connected to the both ends of the surface of outer sleeve
On, it punches among right shell body；
Piston head is located at surface and is provided in the outer sleeve of bar shaped groove part, and the upper and lower surface of piston head also respectively opens a spill
Slot, upper and lower two pieces of friction plates are embedded in the baltimore groove of piston head upper and lower surface respectively；Bolt sequentially passes through upper padding plate, outer sleeve
Upper surface bar shaped groove, upper friction plate, piston head, lower friction plate, outer sleeve lower surface bar shaped groove, lower bolster, and by upper pad
Plate, outer sleeve, upper friction plate, piston head, lower friction plate, lower bolster link together；Left connecting rod is connected on right baffle-plate, right company
Bar is connected to piston head right end, and right connecting rod passes through punching among right shell body to stretch out except outer tube；When supporting member tension or
When compression, outer sleeve and the opposite sliding of piston head, at this time friction have partly started energy consumption effect；
The runback bit position is made of two groups of metal coil springs, and one group is positioned between right baffle-plate and piston head, another
Group is positioned between right shell body and piston head, and two metal coil springs are applied precompression respectively and are filled in outer sleeve.
2. according to a kind of piston type filling compression spring Self-resetting support of claim 1, which is characterized in that design two side by side in an axial direction
Parallel bolt.
3. according to a kind of piston type filling compression spring Self-resetting support of claim 1, it is characterised in that bolt is high-strength bolt.
4. a kind of working method of piston type filling compression spring Self-resetting support of claim 1, which is characterized in that when piston type rubs
When wiping the suffered axial force of support more than the stiction that friction part is provided, left connecting rod and right connecting rod begin with opposite position
It moves, outer sleeve and the opposite sliding of piston head, at this time friction partly start energy consumption and work；When device starts unloading, be pressurized gold
Belong to spring and first restore its deformation, self- recoverage power is provided for entire supporting member；Due to the presence of metal spring precompression, and it is left
The right side respectively arrange one group, no matter piston type friction support be in tension or pressured state, always have one group of metal spring in by
Pressure condition ensures the realization of runback bit function to provide certain restoring force.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510822723.4A CN105507439B (en) | 2015-11-24 | 2015-11-24 | A kind of piston type filling compression spring Self-resetting energy dissipation brace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510822723.4A CN105507439B (en) | 2015-11-24 | 2015-11-24 | A kind of piston type filling compression spring Self-resetting energy dissipation brace |
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| Publication Number | Publication Date |
|---|---|
| CN105507439A CN105507439A (en) | 2016-04-20 |
| CN105507439B true CN105507439B (en) | 2018-07-31 |
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| CN201510822723.4A Active CN105507439B (en) | 2015-11-24 | 2015-11-24 | A kind of piston type filling compression spring Self-resetting energy dissipation brace |
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| CN113585845B (en) * | 2021-07-23 | 2022-06-21 | 北京工业大学 | Assembly type self-resetting viscous energy dissipation support based on SMA stranded wire |
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| CN105507439A (en) | 2016-04-20 |
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