CN1033090A - Incompetent depletion shake (shaking) device of building and works - Google Patents
Incompetent depletion shake (shaking) device of building and works Download PDFInfo
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- CN1033090A CN1033090A CN 87107203 CN87107203A CN1033090A CN 1033090 A CN1033090 A CN 1033090A CN 87107203 CN87107203 CN 87107203 CN 87107203 A CN87107203 A CN 87107203A CN 1033090 A CN1033090 A CN 1033090A
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Abstract
The present invention relates to a kind of building does not have energy consumption shockproof (shaking) device, and it has adopted damping unit, draws down by one group of pulley that is fixed on the differing heights at building top one fixed point with some wire rope, joins with the displacement amplifying device.Amplifying device joins with the damping unit that is placed on the building bottom again.Between amplifying device and the wire rope adjuster is housed.Vibration abatement of the present invention can absorb the part energy that earthquake imposes on building, thereby reduces its horizontal movement, avoids building to be destroyed, and this device also can be used to alleviate the destruction that storm etc. causes.
Description
The present invention relates to a kind of damping (shaking) device, particularly relate to the incompetent depletion shake of building and works (shaking) device (the incompetent depletion shake of following abbreviation device), it can be used in highrise building or the works, alleviating the highrise building that causes because of earthquake, storm etc. or the horizontal movement of works top, top and key position, thereby reach the purpose that highrise building and works are not destroyed.
As everyone knows, earthquake is a kind of natural phenomena that causes owing to diastrophism, and it brings great harm for human normal life and activity in production.For the generation of earthquake, the mankind can't control it, even can not make earthquake prediction like clockwork, but people strive to find the method that can reduce the harm that earthquake brings always.The Chinese Central Television (CCTV) has play a newest fruits about the highrise building damping device of Japan in the night news on November 9th, 1.This technology is to be provided with the very complicated damping device at random by electrohydraulic servo system control in the top layer of high-rise building.When earthquake takes place when, high-rise roof produces horizontal movement, its displacement signal feeds back to the servo valve by servo-control system control, one of hydraulic oil is entered have in the action tank of two oil pockets an oil pocket, produce huge thrust and promote a big mass, thus to top of high-rise buildings produce one rightabout, can offset and make the top produce the power of horizontal movement basically.But because the weight of this device is equivalent to a thirtieth of whole high-story house weight, how the building substructure reinforces is a problem that can not be ignored, at least its structure section needs to strengthen, but strengthen the increase that structure section means extra charge, and this device only could be worked under the situation of energising, and earthquake and so on disaster is when taking place, and for avoiding taking place such as disasters such as fire, it is essential cutting off the electricity supply again.So, this device just can't play a role.At ordinary times electric energy being laid in (such as the way that adopts battery) is a kind of way, but the frequency that earthquake takes place is very little, and battery requires periodic maintenance, and cost is high.Also has a problem, exactly when generation earthquake generating power transformating and supplying facility is destroyed, its consequence singly is not that above-mentioned control system can not be worked, and be located at the vibration absorber of top of high-rise buildings, certainty and top of building itself laterally move together under the seismic wave influence, this not only is helpless to the safety of building, has increased the danger that makes building collapsing all the better.
The purpose of this invention is to provide a kind of incompetent depletion shake device, it can overcome the weak point of above-mentioned prior art, does not need to offset its horizontal movement by the active force of the big mass of roof portion, does not more need electric energy.Its effect is, when roof portion owing to earthquake produces the instantaneous of acceleration, speed, displacement, make it to be subjected to " the instantaneous constraint " of the damping force that apparatus of the present invention produce, damping force increases (in a short period of time) gradually afterwards, thereby reduce the horizontal movement of building or works, produce when this damping force is moved by the axis of the piston in the damping unit, the size of damping force depends on the movement velocity of the axis of the piston, and the speed of motion depends on the displacement that the roof produces in the unit interval.Way by displacement is amplified makes the displacement of piston stroke greater than the roof, thereby therefore the sliding speed of the axis of the piston in damped cylinder produce bigger damping force greater than the velocity of displacement on roof.Make this device absorb earthquake and impose on the part energy of building or works, thereby reduce its horizontal movement, avoid being destroyed, this device also can be used for alleviating the destruction that storm etc. causes.
The present invention has adopted damping unit for this reason; One group of pulley of differing heights draws down many strip metals rope on building or the works side by vertically being distributed in respectively from the fixed point on building or works top, on metallic cable, be connected to the rope adjuster, metallic cable and displacement amplifying mechanism join, with displacement amplifying mechanism and metallic cable the horizontal movement of building is amplified, enlarger on the ground is that the damping unit of action element join with cylinder body, piston with being placed on.
In the present invention, the inventor has also designed a kind of orifice valve, is provided with a unidirectional damping plate in this valve, the size of decision restriction; Damping sheet links to each other with enlarger, uses the size of the horizontal displacement decision restriction of building, and the damping force that makes damping unit produce increases sharply.
In addition, the present invention has adopted one or more accumulators, joins with the cylinder body front end, has formed damping unit with cylinder body and piston etc., and accumulator can be Weight type, spring or gas-loaded formula, is preferably bladder accumulator.
Other advantage of damping device of the present invention and feature will be recognized by embodiment and in conjunction with following accompanying drawing.
Fig. 1 is embodiment schematic diagram of the incompetent depletion shake apparatus structure of building;
Fig. 2 is the displacement amplifying mechanism embodiment illustrated in fig. 1 and the operating principle schematic diagram of damping unit;
Fig. 3 is an another kind of displacement amplifying mechanism schematic diagram of the present invention;
Fig. 4 represents the structure of another kind of damping unit.
Incompetent depletion shake device referring to Fig. 1.Label 1 is a building, note that building can load onto several these type of dampings (shaking) device all around, only one of them is analyzed here.As shown in Figure 1, an end of wire rope 5 is fixed on the fixed contact 4 of top of building, and wire rope 5 also can be that the many wire rope that are arranged in parallel are formed the wire rope group.Wire rope 5 is put into each groove of pulley.Pulley is contained on the pulley spindle, is contained on the stiffening girder 2 that vertically is fixed on the building by bearing support again, and pulley that exposes and wire rope cover with cover 12.Several pulleys are equipped with in the building both sides, and its number is determined on a case-by-case basis, and should be able to make the axis of the piston in the damping unit of bottom can produce enough displacements in a word when work.On the wire rope between two pulleys of foot wire rope tensioning adjuster 11 is housed.Fixed head 13 in the other end of wire rope and the following displacement amplifying mechanism links.The pulley spindle 9 and the bearing support 10 that are positioned at 4 leading blocks 6 of corner must have enough intensity, join securely with building.Wire rope 5 is transferred to suitable duty by adjuster 11.
Present embodiment adopts two cover damping unit and enlargers, and symmetric arrangement is so only illustrated just wherein a nested structure.Referring to Fig. 2, there is shown an enlarger and damping unit.Displacement amplifying mechanism comprises wire rope fixed head 13, and lever 15 is amplified in displacement, and bar 15 is contained on the fulcrum axle bed 18 by fulcrum shaft 17, has made oval axle sleeve 19 on the other end of bar 15 or has made other shape, so that fulcrum shaft 20 can be moved up and down; The fulcrum shaft of bar 21 is contained on this axle sleeve, and bar 21 connects with damping piston axle 32 1 ends by fulcrum shaft 22.Damping unit mainly comprises the axis of the piston 32, cylinder body 34, damper tube 35, orifice valve 31 and combination compression spring 36.Piston 42 is divided into chamber, left and right sides A and B to the inner chamber of cylinder body 34, and sealing ring 37,38 is housed respectively on the axis of the piston and the piston, between the spring stop 33 of the other end of the axis of the piston 32 and cylinder body 34 afterbodys combination compression spring 36 is housed; The axis of the piston 32 can move horizontally (shown in the arrow a ", b "); Draw two damper tubes 25 from the A chamber of cylinder body 34 and B chamber, this two pipe joins with orifice valve 31 and constitutes the loop; Unidirectional damping plate 41 in the orifice valve 31 is contained on the damper rod 30 by turning cylinder 40, but damper rod relative damping valve liquid thickly moves up and down, the size of decision restriction Z, be damping sheet 41 upwards the time restriction increase, reduce in the time of downwards, damping sheet can be along arrow e among Fig. 2, the swing of f direction, but because the restriction of baffle plate 43, can not cross baffle plate and be rotated further, when the displacement of a direction takes place in top of building, the damping unit load, fluid flows to the C direction, at this moment damping sheet (41) downwards and turn to and baffle plate 43 contacted positions, restriction Z reduces, liquid flows to the d direction during unloading, damping sheet 41 increases restriction to the swing of f direction.
The damping valve rod 30 that sealing ring 39 is housed stretches out in orifice valve 31, is hinged by fulcrum shaft 28 and bar 29, and bar 29 then amplifies bar 23 by fulcrum shaft 44 and another displacement and is hinged; Bar 23 is hinged on the fulcrum axle bed 25 by fulcrum shaft 24, and its other end has been made oval fulcrum axle sleeve 26, is joined by fulcrum shaft 27 and bar 14; 14 on bar is hinged on the bar 15 by fulcrum shaft 16.When the work of this device, as shown in Figure 2, the moving displacement of wire rope 5 impels damper rod 30 move up and down (as arrow a ', shown in the b ') after amplifying.Whole enlarger and damping unit can be placed in the basement 3 of building.
To narrate the operating principle of damping device below:
As shown in Figure 1, when top of building with respect to the basis during to a direction displacement shown in the arrow, the damping unit on the left side works; When the displacement of b direction, the damping unit on the right works.When the top when a direction is subjected to displacement, the left side wall of building must be a camber line, therefore spur steel cable and spur displacement amplification device by wire rope, pass through displacement amplification device, make the acceleration that produces on the roof, these three parameters of speed and displacement obtain amplifying simultaneously, " direction motion; the fluid of the oil pocket A of cylinder body 34 enters orifice valve by damper tube; meanwhile, and damping sheet 41 moves downward, and restriction reduces; the A cavity pressure improves; the damping force of cluster spring 36 also increases simultaneously, and its result hinders the axis of the piston 32 to left movement, thereby has limited the displacement of building top to a direction that this moment, the axis of the piston 32 was to a.When top of building during along the relative foundation displacement of b direction, its action principle is same as described above.
The damping force of the damping unit among Fig. 2 is a variable, and damping force reduces with the increase of oil flow and damping port area and increases.That is adopted here overcomes this method of a part of the displacement that top of building produces by damping force, the way that is actually usefulness " soft " reduces the acceleration of the instantaneous top of building generation of earthquake generation, because structural quality is very big, acceleration forms very big inertia force thus, and produce certain speed and displacement, it is helpless adopting the way of " firmly ", can only take the way of " offsetting gradually ", with acceleration, speed and the displacement that reduces to produce.
Except the top layer at building or works is provided with fixed contact 4, if necessary, also can be and the damping device that cooperates with it under being placed at the fixed contact that this type of is set on building corresponding height, with the horizontal movement of restriction differing heights layer.
The above embodiments can have many improvement, referring to Fig. 3, the displacement amplifying mechanism on the left side adopts the form of movable pulley, one end of rope 48 joins by directive wheel 47 and the axis of the piston 32, the other end 45 is connected on ground or other firm place, and wire rope 5 is connected on the rare 8 reed values of the movable pulley Rong milk third constellations * Χ that is contrary to and alarms taro and herd the happy of wasting time and talk about the right Chinese scholartree of ash garden Mian advanced in years and sting the grain and push away Lu and stir stupid the stopping of the boundless and indistinct plaque of Song's ash product glutinous earthworm mire cooked food and send piece large-leaved dogwood source mace that swells to put down the glutinous disrespectful I 8 of cooked food that beats with a stick of earthworm nurse one rope 48 ' join with the enlarger of orifice valve 31 is wherein arranged.The present invention is owing to adopted displacement amplifying mechanism, and therefore the power that acts on the axis of the piston has reduced, and this is favourable to the technical requirements that reduces damping unit undoubtedly.
Referring to Fig. 4, there is shown the form of structure of another kind of damping unit.Piston 42 is divided into A chamber and B chamber to cylinder body 34, and the A chamber is full of fluid, joins by pipe 51 and accumulator 49.Valve 53 realizes being connected of accumulator and oil pocket A and cuts out with it between pipe 51 and accumulator.Valve 53 is opened during operate as normal.Accumulator can be Weight type, spring or gas-loaded formula, but is preferably the good bladder accumulator of dynamic property.Being positioned on the piston rod rear portion 52 in B chamber flexible member is housed, is that 50, one of cluster springs are contained in the axis of the piston rear portion shown in the figure, and the rear portion of cylinder body 34 is lived on a crown.The top of the axis of the piston 32 can be connected (not shown) with aforesaid two kinds of enlargers respectively.The bounce of the compression spring 50 of the axis of the piston right-hand member generally can not act on the dynamic balance that pressure produced on the piston with accumulator, promptly requires the steel cable of the axis of the piston left end still to bear certain tensile force.Become impaction state when compression spring 50 is flat, when building top takes place a to horizontal movement (as shown in Figure 1), piston is moved to the left, and during to certain distance, spring is tension, stops piston to be moved to the left.In addition if the B chamber is hedged off from the outer world and charges into a certain amount of gas, when piston moved right certain distance, compressed-air actuated pressure can be offset accumulator and be acted on a part of pressure on the piston.When top of building during to horizontal movement, does not wish that wire rope 5 pulling force on the left side are too big to b naturally, at this moment the pressure that affacts on the piston of accumulator is mainly born by the bounce and the compressed-air actuated pressure of spring.When a carries out b to displacement after horizontal movement, one transition stage is arranged, do not bear accumulator in this stage spring and air pressure and act on pressure on the piston, opposite spring is toward pulling back, the power that this moment, wire rope 5 was subjected to is still very big, if want to reduce the power that this transition stage wire rope is subjected to, then can in the pipe 51 between accumulator 49 and the cylinder body 34, establish an adjustable throttle orifice, but this function also valve 53 is born, when piston was moved right, the fluid outflow in the accumulator had a pressure reduction between accumulator and the cylinder body, the pressure that acts on like this on the piston has reduced, thereby the pulling force that wire rope is subjected to has also reduced.Restriction is set also has an effect, promptly when piston was moved to the left, the pressure in the cylinder body was greater than the accumulator internal pressure, and nature produces bigger damping force to piston.Be noted that restriction can not be too little, otherwise can influence the damping unit dynamic characteristic, decide, generally do not establish restriction and also can on specific requirement.What is particularly worth mentioning is that the accumulator among the present invention can join with several and cylinder body A chamber, to satisfy different needs.
The operating principle of damping unit among Fig. 4:
When building a to (shown in Figure 1) when being subjected to displacement, its left side wall must be a camber line, at this moment wire rope 5 falls short of, so just spur the displacement amplification device (Fig. 4 does not show) that joins with it,, make these three parameters of acceleration, speed and displacement that produce on the roof obtain simultaneously amplifying by displacement amplification device, this moment, the axis of the piston 32 was to a " direction motion; the fluid in the A chamber of cylinder body 34 enters in the accumulator 49 by pipe 51, along with the increase of piston 42 displacements, the pressure in the accumulator also increases; On the other hand, originally the energy storage pressure of being born by spring and compressed air was transferred on the wire rope 5 very soon, and last spring is subjected to pulling force, and the result who integrates makes the very fast increase of the damping force that acts on the piston, hinder the axis of the piston 32 to left movement, thereby limited the displacement of building thing top a direction.When top of building along b direction (shown in Figure 1) relatively during foundation displacement, another damping unit works, principle is same as described above.
The present invention has only done analysis to a damping device that is contained on side of building, when obviously loading onto a certain amount of damper around building, can limit the displacement of any horizontal direction of building.The present invention is effective equally to general frame construction.Knowing those skilled in the art knows, present embodiment can have a lot of improvement, such as adopting one group of damping unit and enlarger to join, damping unit also can adopt other form among the embodiment, do not need working solution, for example can remove accumulator among Fig. 4, whole cylinder body sealing, cylinder body is divided into A chamber and B chamber by piston 42, puts into inflatable air bag respectively in this two chamber.In this external A chamber cluster spring is set also preferably.The damping unit of the similar Fig. 4 of this damping unit operating principle, not quite clear here have a detailed discussion and.
Advantage of the present invention is that significantly it does not need to supply with the energy, and this singly is not for energy-conservation, mainly is for safe and reliable, damping device under any circumstance can be worked, and frame for movement is simple, and expense is low, has certain practicality.
Claims (10)
1, the incompetent depletion of a kind of building or works shake (shaking) device is characterized in that: one group of pulley of differing heights draws down many strip metals rope on building or the works side by vertically being distributed in respectively from the fixed point on building or works top; Be connected to the rope adjuster on the metallic cable; Metallic cable and displacement amplifying mechanism join, and with displacement amplifying mechanism and metallic cable the building horizontal movement are amplified; Enlarger on the ground is that the damping unit of action element join with cylinder body, piston with being placed on.
2, incompetent depletion shake device according to claim 1, wherein displacement amplifying mechanism comprises wire rope fixed head (13), lever (15) is amplified in displacement; Bar 15 is contained on the fulcrum shaft (18) by fulcrum shaft (17), has made oval axle sleeve on the other end of bar (15) or has made other shape, so that the fulcrum shaft (20) that is contained on the axle sleeve can move up and down; Bar (21) connects with damping piston axle (32) one ends by fulcrum shaft (22).
3, incompetent depletion shake device according to claim 1, wherein damping unit has an orifice valve (13), cylinder body (34) has two oil pocket (A, B), respectively by damper tube (15,15) communicate with orifice valve, restriction size in the orifice valve is determined by movable damping sheet (41), damper rod (30) links to each other with the displacement enlarger, and when top of building took place a to displacement, the damping sheet (41) that same damper rod (30) links to each other was downward, said damping sheet (41) can also rotate, when the damping unit load, damping sheet is in and the contacted position of baffle plate (43), can clockwise rotate during unloading.
4, incompetent depletion shake device according to claim 3 is equipped with combination compression spring between wherein said its spring stop of damping unit (33) and cylinder body (34) afterbody.
5, incompetent depletion shake device according to claim 3, the enlarger that wherein said same damper rod (30) joins is by constituting like this, be that damper rod (30) is hinged by fulcrum shaft (28) and bar (29), bar (29) amplifies bar (23) by fulcrum shaft (44) and displacement and is hinged; Bar (23) is hinged on the fulcrum axle bed 25 by fulcrum shaft (24), and its other end has been made oval fulcrum axle sleeve 26, is joined by fulcrum shaft (27) and bar (14); Bar (14) then is hinged on the bar (15) by fulcrum shaft (16).
6, incompetent depletion shake device according to claim 1, wherein said enlarger is movable pulley or running block; One end of rope 48 joins by directive wheel and the axis of the piston (32), and the other end (45) is connected on ground or other firm place, and wire rope (5) is connected on the movable pulley axle.
7, incompetent depletion shake device according to claim 1, wherein said damping unit has one or several accumulators (49), and cylinder body (34) is divided into A chamber and B chamber by piston (42), and accumulator communicates with the A chamber of cylinder body (34).
8, incompetent depletion shake device according to claim 7, wherein said accumulator can Weight types, spring or gas-loaded formula, are preferably bladder accumulator.
9, incompetent depletion shake device according to claim 7, the B chamber of wherein said cylinder body (34) seals, and B is filled with gas in the chamber; Cluster spring (50) is equipped with at the axis of the piston rear portion (52) that is positioned at the B chamber, and one on said spring is contained in the piston rear portion, and 32 rear portion is lived on a crown.
10, incompetent depletion shake device according to claim 7 wherein is provided with restriction between accumulator (49) and the cylinder body (34).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87107203 CN1016726B (en) | 1987-10-28 | 1987-10-28 | Shock absorber for building or structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87107203 CN1016726B (en) | 1987-10-28 | 1987-10-28 | Shock absorber for building or structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1033090A true CN1033090A (en) | 1989-05-24 |
| CN1016726B CN1016726B (en) | 1992-05-20 |
Family
ID=4816012
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 87107203 Expired CN1016726B (en) | 1987-10-28 | 1987-10-28 | Shock absorber for building or structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1016726B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100396861C (en) * | 2006-03-03 | 2008-06-25 | 北京工业大学 | Damping controller for suspended tuning mass damper |
| CN100449096C (en) * | 2004-09-06 | 2009-01-07 | 隔而固振动控制有限公司 | Device for stabilizing supporting structure |
| CN102317556A (en) * | 2008-12-19 | 2012-01-11 | 金色车轮防火有限公司 | Disaster prevention system for a skyscraper and a method thereof |
| CN101787751B (en) * | 2010-01-28 | 2012-01-11 | 黄昆 | House safety belt life-saving device, house structure and construction method thereof |
| CN102433943A (en) * | 2011-10-12 | 2012-05-02 | 北京工业大学 | Sliding cabin type multilevel damper equipped with power consumption and tuning particles |
| CN109653234A (en) * | 2019-01-29 | 2019-04-19 | 中建二局第二建筑工程有限公司 | A kind of ultra-toughness concrete-bridge suspension system |
| CN110328061A (en) * | 2019-04-10 | 2019-10-15 | 广州市婵昕生物科技有限责任公司 | A kind of heavy duty detergent refrigerated centrifuge with vibration-damping function for biological diagnosis and treatment |
-
1987
- 1987-10-28 CN CN 87107203 patent/CN1016726B/en not_active Expired
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100449096C (en) * | 2004-09-06 | 2009-01-07 | 隔而固振动控制有限公司 | Device for stabilizing supporting structure |
| CN100396861C (en) * | 2006-03-03 | 2008-06-25 | 北京工业大学 | Damping controller for suspended tuning mass damper |
| CN102317556A (en) * | 2008-12-19 | 2012-01-11 | 金色车轮防火有限公司 | Disaster prevention system for a skyscraper and a method thereof |
| CN101787751B (en) * | 2010-01-28 | 2012-01-11 | 黄昆 | House safety belt life-saving device, house structure and construction method thereof |
| CN102433943A (en) * | 2011-10-12 | 2012-05-02 | 北京工业大学 | Sliding cabin type multilevel damper equipped with power consumption and tuning particles |
| CN109653234A (en) * | 2019-01-29 | 2019-04-19 | 中建二局第二建筑工程有限公司 | A kind of ultra-toughness concrete-bridge suspension system |
| CN109653234B (en) * | 2019-01-29 | 2020-07-10 | 中建二局第二建筑工程有限公司 | Super tough concrete bridge shock absorber system |
| CN110328061A (en) * | 2019-04-10 | 2019-10-15 | 广州市婵昕生物科技有限责任公司 | A kind of heavy duty detergent refrigerated centrifuge with vibration-damping function for biological diagnosis and treatment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1016726B (en) | 1992-05-20 |
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