CN105421608A - Self-resetting energy-consumption inhaul cable support - Google Patents
Self-resetting energy-consumption inhaul cable support Download PDFInfo
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- CN105421608A CN105421608A CN201510701421.1A CN201510701421A CN105421608A CN 105421608 A CN105421608 A CN 105421608A CN 201510701421 A CN201510701421 A CN 201510701421A CN 105421608 A CN105421608 A CN 105421608A
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- 238000005265 energy consumption Methods 0.000 title description 2
- 230000000670 limiting effect Effects 0.000 claims abstract description 21
- 239000000463 material Substances 0.000 claims abstract description 18
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 5
- 239000010959 steel Substances 0.000 claims abstract description 5
- 210000003205 muscle Anatomy 0.000 claims description 44
- 238000004873 anchoring Methods 0.000 claims description 7
- 238000010276 construction Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 9
- 230000002829 reductive effect Effects 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 4
- 239000003795 chemical substances by application Substances 0.000 description 12
- 230000008569 process Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 230000003068 static effect Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000036244 malformation Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000011814 protection agent Substances 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
Classifications
-
- 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)
Abstract
The invention discloses a self-resetting energy-consuming inhaul cable support which comprises a pulley, a pulley base, a prestress resetting rib, an anchorage device, a limiting plate, a sliding frame, a bottom plate, a high-strength steel cable, a friction plate, a steel base plate and a connecting plate, wherein the pulley base is fixedly connected with the pulley base; the pulley is fixed on a pulley base, and the pulley base is fixed with the main body structure through a bolt; one end of the prestress reset rib is anchored on the limiting plate through an anchorage device, and the other end of the prestress reset rib is wound around the pulley, establishes prestress by using a post-tensioning method and is connected with the sliding frame. The technical problems solved by the invention are as follows: (1) the self-resetting capability of the support is enhanced in multiples or the selection range of the resetting rib material is widened in multiples, the structural complexity of the support is simplified, and the working performance of the support is ensured; (2) the supporting sectional area is reduced, so that the earthquake effect is effectively reduced; (3) giving the support a designability of "yield stiffness".
Description
Technical field
The invention belongs to field of civil engineering, relate to a kind of Self-resetting power consumption drag-line and support.
Background technology
Support frame system is widely used in earthquake resistant engineering field as the efficient Lateral Resistant System of a class, and the performance wherein supported directly determines the anti-seismic performance of system.It is large that generic central is supported on elastic stage anti-side rigidity, has good Bit andits control effect; But rigidity and bearing capacity can be caused to decline rapidly in severe earthquake action lower support flexing, ductility and Hysteresis Behavior more weak.Special center support, accentric support and buckling restrained brace utilize the surrender mechanism dissipation seismic energy of gusset plate, power consumption beam-ends or energy consumption inner core, have stronger nonlinear deformation ability, but can produce very large permanent set after shake.Existing result of study shows, when remaining story drift is more than 0.5%, the rehabilitation cost of structure will exceed reconstructed cost, does not namely have to repair to be worth.In addition, the gravity caused by permanent set---distortion second-order effects, by the risk of collapsing of aggravation structure, causes serious threat to structural safety.
It is the supporting form newly proposed in recent years that Self-resetting supports, by reaching the object eliminated and support permanent set to reset muscle Shi Hanzhang.The deformability that traditional Self-resetting supports is subject to the restriction of the elastic extension of reset muscle material, makes the selection face of material comparatively narrow, limits and apply.Existing patent is proposed and is addressed this problem by the method for series connection reset muscle, but structure is very complicated.Result of study shows, when the length foozle that Self-resetting supports main inside and outside power transmission sheet material parts reaches three one thousandths, just will significantly affect the stress performance of support.Therefore this support only rests on laboratory stage at present, is difficult to apply.
Existing Self-resetting supports to ensure stability during self pressurized, and the cross-sectional area of support is very large, thus increases geological process, also very unfavorable for structure stress.
In addition, all there is the lower problem of surrender rigidity in existing supporting form, and the floor expansion surrendered to taking the lead in is tended in malformation, and limit the distribution again of anti-side rigidity along structure height direction, permanent set problem is also more outstanding.
Summary of the invention
The object of the invention is to the deficiency supported for above-mentioned traditional support, especially Self-resetting, a kind of Self-resetting power consumption drag-line is provided to support, this support can: (1) is multiplied the self-resetting capability that supports or significantly widen the range of choice of reset muscle material, simplify the complexity of structures of support simultaneously, ensure the service behaviour supported; (2) reduce supporting section to amass, thus effectively reduce geological process; (3) designability supporting " surrender rigidity " is given, thus the overall lateral resistance of optimizing structure.
The technical solution used in the present invention is: a kind of Self-resetting power consumption drag-line supports, and comprises pulley, pulley base, prestressing force reset muscle, ground tackle, limiting plate, slider bar, base plate, strand spiral rope, friction plate, billet and junction plate;
Described pulley is fixed on pulley base, and pulley base is fixed by bolt and agent structure;
One end of described prestressing force reset muscle is anchored on limiting plate by ground tackle, after the other end walks around pulley, uses post stretching set up prestressing force and be connected with slider bar;
Described limiting plate is fixed by welding on base plate, described slider bar is by sliding panel one, sliding panel two, sliding panel three and sliding panel four surround box section, wherein sliding panel one, sliding panel three is vertical with prestressing force reset muscle length direction, sliding panel two, sliding panel four is parallel with prestressing force reset muscle length direction, sliding panel one and prestressing force reset muscle are by ground tackle anchoring, sliding panel three is by one end anchoring of ground tackle and strand spiral rope, the other end of strand spiral rope is connected with agent structure, sliding panel two, the both sides of sliding panel four are respectively arranged with friction plate, the arranged outside of friction plate has billet, the arranged outside of billet has junction plate, the cross section of junction plate is L shape, two limb plate offers bolt hole, with the friction plate of this bolt hole relevant position, billet is also provided with bolt hole and sliding panel two, sliding panel four is provided with microscler hole slot, by screwing bolts at sliding panel two, the contact surface of sliding panel four and friction plate sets up precompression, described junction plate is bolted on base plate, base plate is fixing on the body construction.
As preferably, described prestressing force reset muscle adopts the material with high-tensile and low elastic modulus to make.
As preferably, described strand spiral rope adopts the steel strand manufacturing of high strength grade, thus reduces the cross-sectional area of cable wire, and then reduces the anti-side rigidity of agent structure, reduces geological process.
As preferably, between described limiting plate and base plate, be provided with stiffening rib, strengthen the rigidity of limiting plate.
The present invention doubles by arranging prestressing force can the be resetted length of muscle of pulley, thus when the distortion of prestressing force reset muscle generation equal length, strain rate is reduced to half when not arranging pulley.Self-resetting deformability can double by such one side; The elastic extension requirement of prestressing force reset muscle material can also be reduced on the other hand, thus widened the range of choice of material.Limiting plate is used for limiting two terminations of prestressing force reset muscle to left movement, sliding panel two and sliding panel four are offered the microscler hole slot of some, can slide along hole slot length direction, the seismic energy of the input that dissipated by the sliding friction of sliding panel two or sliding panel four and friction plate.
Under little shake condition, the pulling force of strand spiral rope is not enough to overcome the pretension sum of frictional force that friction plate provides and prestressing force reset muscle, and one end that therefore strand spiral rope is connected with slider bar is equivalent to fixed end.Under this condition, only have strand spiral rope to play supporting role, and there is no energy dissipation capacity.
In-large shake condition under, the pulling force of strand spiral rope overcomes the pretension sum of frictional force that friction plate provides and prestressing force reset muscle, and therefore strand spiral rope will pull slider bar to move right.At this moment strand spiral rope and prestressing force reset muscle are series relationship, and the integral rigidity that Self-resetting power consumption drag-line supports significantly declines relative to the rigidity of strand spiral rope, suppresses the quick growth of seismic forces, thus realizes the protective effect to agent structure.Meanwhile, the relative sliding dissipation seismic energy between slider bar and friction plate is utilized.After earthquake, the pulling force of prestressing force reset muscle is greater than maximum static friction force all the time, and slider bar therefore will be pulled to left movement, until contact limiting plate is static, realizes Self-resetting function.
The integral rigidity that Self-resetting power consumption drag-line supports by changing material and the length-flexible adjustment of prestressing force reset muscle, thus can optimize the distribution of anti-side rigidity along structure height direction, makes stressed more reasonable under geological process of agent structure.
The present invention has the following advantages compared to existing technology:
1. there is excellent Self-resetting function, solve the permanent set problem of agent structure after earthquake.In-large shake condition under, the pulling force of strand spiral rope overcomes the pretension sum of frictional force that friction plate provides and prestressing force reset muscle, and therefore strand spiral rope will pull slider bar to move right.After earthquake, the pulling force of prestressing force reset muscle is greater than maximum static friction force all the time, and slider bar therefore will be pulled to left movement, until contact limiting plate is static, realizes Self-resetting, thus eliminates the permanent set of agent structure.In addition, double by arranging prestressing force can the be resetted length of muscle of pulley, thus when the distortion of prestressing force reset muscle generation equal length, strain rate is reduced to half when not arranging pulley.Therefore, in theory, when prestressing force reset muscle reaches elastic limit, the Self-resetting power consumption drag-line arranging pulley supports comparable self-resetting capability when not arranging pulley and doubles.
2. widened the range of choice of the material of prestressing force reset muscle.Double by arranging prestressing force can the be resetted length of muscle of pulley, thus when the distortion of prestressing force reset muscle generation equal length, strain rate is reduced to half when not arranging pulley.Therefore in theory, when reaching same self-resetting capability, the Self-resetting power consumption drag-line arranging pulley supports the comparable elastic extension for the material of prestressing force reset muscle when not arranging pulley and requires to reduce half, thus widened the range of choice of the material of prestressing force reset muscle, make to select suitable engineering material to be more prone to.
3. there is good energy dissipation capacity, realize the available protecting to agent structure.The present invention utilizes the sliding friction dissipation seismic energy between slider bar and friction plate, has stable performance, simple structure, advantage easy for installation.Utilize metal friction dissipation seismic energy, can reduce and the energy of agent structure is inputted, reach the object of protection agent structure.
4. effectively reduce geological process.It is a set of pulling force work system that Self-resetting power consumption drag-line of the present invention supports, and there is not the compressive buckling problem of traditional support and the support of existing Self-resetting.Adopt strand spiral rope can give full play to the tensile strength of high-strength steel, reduce the cross-sectional area of strand spiral rope, thus reduce the rigidity of support, effectively reduce geological process.
5. in-large shake under automatically reduce support stiffness, suppress seismic forces to increase fast, realize the available protecting to agent structure.In-large shake condition under; after slider bar is pulled by strand spiral rope; strand spiral rope and prestressing force reset muscle are series relationship; the integral rigidity that Self-resetting power consumption drag-line supports significantly declines relative to the rigidity of strand spiral rope; the quick growth of seismic forces can be suppressed, thus realize the protective effect to agent structure.
6. in-rigidity that large shake lower described Self-resetting power consumption drag-line supports can design.Strand spiral rope and prestressing force reset muscle series connection after rigidity for main structure body lateral resistance impact very large: if this rigidity is excessive, then seismic forces can not be suppressed effectively, can Damage Structure safety, increase structural cost; If this rigidity is too small, then the floor that malformation is tended to surrender to taking the lead in is expanded, equally can Damage Structure safety.The technical scheme that this patent proposes by changing length and this rigidity of control of material of prestressing force reset muscle, can optimize the distribution of anti-side rigidity along structure height direction, makes stressed more reasonable under geological process of agent structure.
7. unitary construction is simple, is convenient to processing, especially eliminates the adverse effect of foozle to support works performance.Existing Self-resetting supports due to self stressed characteristic, when the length foozle of the inside and outside power transmission sheet material parts that Self-resetting supports reaches three one thousandths, just will significantly affect the stress performance of support, therefore this support only rests on laboratory stage at present.The technical scheme that this patent proposes is a set of pulling force work system, does not need the inside and outside power transmission sheet material parts arranging the proposition of prior art scheme, relatively existing technical scheme, significantly reduces the required precision of support manufacturing processing, make to be easier to promotion and application.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is pulley position of the present invention schematic diagram;
Fig. 3 is base plate position of the present invention schematic diagram;
Fig. 4 is slider bar position of the present invention schematic diagram;
Fig. 5 is friction plate of the present invention, billet schematic diagram;
Fig. 6 is junction plate schematic diagram of the present invention;
Fig. 7 is sliding panel two of the present invention and sliding panel four schematic diagram.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention will be further described.
As shown in figs. 1-7: a kind of Self-resetting power consumption drag-line supports, and comprises pulley 1, pulley base 2, bolt hole 3, prestressing force reset muscle 4, ground tackle 5, limiting plate 6, slider bar 7, base plate 8, stiffening rib 9, strand spiral rope 10, friction plate 11, billet 12 and junction plate 13 and forms.
Described pulley 1 is fixed on pulley base 2, pulley base 2 is arranged several bolts hole 3, is fixed by bolt and main structure body.
Prestressing force reset muscle 4 adopts the material with high-tensile and low elastic modulus feature, and its one end is anchored on limiting plate 6 by ground tackle 5, after the other end walks around pulley 1, uses post stretching to set up prestressing force, is connected by ground tackle 5 with slider bar 7.
Limiting plate 6 is used for limiting two terminations of prestressing force reset muscle 4 to left movement.Limiting plate 6 is fixed by welding on base plate 8.The rigidity that some pieces of stiffening ribs 9 strengthen limiting plate 6 is set.
Slider bar 7 surrounds box section by sliding panel 1, sliding panel 2 14, sliding panel 3 15 and sliding panel 4 16, wherein sliding panel 1, sliding panel 3 15 are vertical with the length direction of prestressing force reset muscle 4, and sliding panel 2 14, sliding panel 4 16 are parallel with the length direction of prestressing force reset muscle 4.Sliding panel 1 and prestressing force reset muscle 4 are by ground tackle 5 anchoring, and sliding panel 3 15 is by ground tackle 5 and strand spiral rope 10 anchoring.Respectively one piece of friction plate 11 is respectively set in the both sides of sliding panel 2 14, sliding panel 4 16.Respectively one piece of billet 12 is respectively set in the outside of friction plate 11, respectively one piece of junction plate 13 is respectively set in the outside of billet 12 in the outside being positioned at slider bar.
Friction plate 11, billet 12 are offered the bolt hole 3 of some.The cross section of junction plate 13 is L shape, its two limb plates is offered the bolt hole 3 of some.Sliding panel 2 14 and sliding panel 4 16 are offered the microscler hole slot 17 of some.
By bolt, sliding panel 2 14 or sliding panel 4 16, friction plate 11, billet 12, junction plate 13 are connected with base plate 8.By screwing bolts at sliding panel 2 14, set up precompression between sliding panel 4 16 and friction plate 11.
One end of strand spiral rope 10 is by ground tackle 5 and sliding panel 3 15 anchoring, the other end and main structure body anatomical connectivity.Base plate 8 is arranged several bolts hole 3, fixed by bolt and main structure body.
It should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.The all available prior art of each ingredient not clear and definite in the present embodiment is realized.
Claims (4)
1. a Self-resetting power consumption drag-line supports, and it is characterized in that: comprise pulley, pulley base, prestressing force reset muscle, ground tackle, limiting plate, slider bar, base plate, strand spiral rope, friction plate, billet and junction plate;
Described pulley is fixed on pulley base, and pulley base is fixed by bolt and agent structure;
One end of described prestressing force reset muscle is anchored on limiting plate by ground tackle, after the other end walks around pulley, uses post stretching set up prestressing force and be connected with slider bar;
Described limiting plate is fixed by welding on base plate, described slider bar is by sliding panel one, sliding panel two, sliding panel three and sliding panel four surround box section, wherein sliding panel one, sliding panel three is vertical with prestressing force reset muscle length direction, sliding panel two, sliding panel four is parallel with prestressing force reset muscle length direction, sliding panel one and prestressing force reset muscle are by ground tackle anchoring, sliding panel three is by one end anchoring of ground tackle and strand spiral rope, the other end of strand spiral rope is connected with agent structure, sliding panel two, the both sides of sliding panel four are respectively arranged with friction plate, the arranged outside of friction plate has billet, the arranged outside of billet has junction plate, the cross section of junction plate is L shape, two limb plate offers bolt hole, with the friction plate of this bolt hole relevant position, billet is also provided with bolt hole and sliding panel two, sliding panel four is provided with microscler hole slot, by screwing bolts at sliding panel two, the contact surface of sliding panel four and friction plate sets up precompression, described junction plate is bolted on base plate, base plate is fixing on the body construction.
2. Self-resetting power consumption drag-line according to claim 1 supports, and it is characterized in that: described prestressing force reset muscle adopts the material with high-tensile and low elastic modulus to make.
3. Self-resetting power consumption drag-line according to claim 1 supports, and it is characterized in that: described strand spiral rope adopts the steel strand manufacturing of high strength grade.
4. Self-resetting power consumption drag-line according to claim 1 supports, and it is characterized in that: be provided with stiffening rib between described limiting plate and base plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510701421.1A CN105421608B (en) | 2015-10-26 | 2015-10-26 | Self-resetting energy-consumption inhaul cable support |
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| CN201510701421.1A CN105421608B (en) | 2015-10-26 | 2015-10-26 | Self-resetting energy-consumption inhaul cable support |
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| CN105421608A true CN105421608A (en) | 2016-03-23 |
| CN105421608B CN105421608B (en) | 2017-08-01 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108532836A (en) * | 2018-05-22 | 2018-09-14 | 扬州大学 | A kind of novel damping Self-resetting energy consumption drag-line support device |
| WO2019223294A1 (en) * | 2018-05-22 | 2019-11-28 | 扬州大学 | Novel shock absorption self-resetting energy-consuming inhaul cable supporting device |
| CN111733995A (en) * | 2020-06-11 | 2020-10-02 | 贵州理工学院 | Self-centering system of large-deformation pulley block |
| CN111733996A (en) * | 2020-06-11 | 2020-10-02 | 贵州理工学院 | Self-centering buckling restrained brace of large-deformation pulley block |
| CN112095832A (en) * | 2020-09-29 | 2020-12-18 | 扬州大学 | Self-resetting energy-consumption inhaul cable supporting device based on pre-pressed disc spring |
| CN116837979A (en) * | 2023-06-15 | 2023-10-03 | 北京工业大学 | Self-resetting vibration damper for amplifying damping energy consumption |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111733994B (en) * | 2020-06-11 | 2021-08-27 | 贵州理工学院 | Self-centering friction energy dissipation support for large-deformation pulley block |
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| JP2006002388A (en) * | 2004-06-16 | 2006-01-05 | Kawarazaki Juken:Kk | Aseismatic reinforcing structure of building |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108532836A (en) * | 2018-05-22 | 2018-09-14 | 扬州大学 | A kind of novel damping Self-resetting energy consumption drag-line support device |
| WO2019223294A1 (en) * | 2018-05-22 | 2019-11-28 | 扬州大学 | Novel shock absorption self-resetting energy-consuming inhaul cable supporting device |
| CN108532836B (en) * | 2018-05-22 | 2024-02-27 | 扬州大学 | Damping self-resetting energy-consumption inhaul cable supporting device |
| CN111733995A (en) * | 2020-06-11 | 2020-10-02 | 贵州理工学院 | Self-centering system of large-deformation pulley block |
| CN111733996A (en) * | 2020-06-11 | 2020-10-02 | 贵州理工学院 | Self-centering buckling restrained brace of large-deformation pulley block |
| CN112095832A (en) * | 2020-09-29 | 2020-12-18 | 扬州大学 | Self-resetting energy-consumption inhaul cable supporting device based on pre-pressed disc spring |
| CN116837979A (en) * | 2023-06-15 | 2023-10-03 | 北京工业大学 | Self-resetting vibration damper for amplifying damping energy consumption |
| CN116837979B (en) * | 2023-06-15 | 2024-04-12 | 北京工业大学 | Self-resetting vibration damper for amplifying damping energy consumption |
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| CN105421608B (en) | 2017-08-01 |
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