CN103643749B - Combined type highrise building shock isolating pedestal - Google Patents
Combined type highrise building shock isolating pedestal Download PDFInfo
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- CN103643749B CN103643749B CN201310687391.4A CN201310687391A CN103643749B CN 103643749 B CN103643749 B CN 103643749B CN 201310687391 A CN201310687391 A CN 201310687391A CN 103643749 B CN103643749 B CN 103643749B
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- 230000035939 shock Effects 0.000 title claims abstract description 44
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 title claims abstract description 31
- 238000002955 isolation Methods 0.000 claims abstract description 31
- 229920001971 elastomer Polymers 0.000 claims abstract description 27
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Abstract
The invention discloses a kind of combined type highrise building shock isolating pedestal, comprise upper junction plate, lower connecting plate, bed plate, standard stack rubber earthquake isolation support, dynamic lever, determine lever, rubber pad, limiting plate, tension adjusting screw(rod), reset pilot pin, place kick, place kick bearing, spacing reference column, resistance arm; The invention solves the problem that the resistance to tension of shock isolating pedestal in highrise building is not enough, isolating affection is poor, ant wind load ability is weak; And solve the problem that the low resistance over-large displacement that can produce and low resistance cannot overcome the load of wind; Utilize the impact of seismic forces, play the unstability of place kick, devise the self-starting device of shock insulation, simple and practical, dependable performance.
Description
Technical field
The invention belongs to construction engineering technical field, particularly a kind of combined type highrise building shock isolating pedestal.
Background technology
Traditional common earthquake proof construction, resist mutually with seismic forces by adding the building body intensity such as bar reinforcement, increasing beam column, but seismic forces is very powerful, often make building collapse from the fracture of root entirety, the anti-shock methods of this traditional, passive " with firm gram just " is called as hard anti-.Shock-insulation building is between building and basis, a kind of special device is set---shock isolating pedestal, building and ground are separated, and isolation seismic energy is to building transmission, earthquake disaster mitigation, the shock isolation method of this active, positive " defeating a force with a tenderness " is called as soft anti-.From earthquake design tactics, modern architecture anti-seismic performance " becomes soft "; Therefore, shock-insulation building can become after development a new tendency.
At present, rubber earthquake isolation support is that investigation and application is maximum in the world, technology is the most ripe and effective significant seismic isolation technology, and technique is used for middle low layer, and in highrise building, application also has following problem to have to be solved:
(1) resistance to tension of shock isolating pedestal is not enough
Rubber earthquake isolation support replaces stacked sulfuration adhesion by multilayer rubber and steel plate and forms, and ordinary circumstance undersetting shock isolation system need possess four kinds of characteristics: bearer properties, shock insulation characteristic, reset feature, energy dissipation behavior.That is, the bearing shock isolation system produced at present does not possess the tensile characteristics of pre-overturn-preventing and lift-off; And highrise building due to depth-width ratio relatively large, effect of toppling is obvious; And Vertical Seismic Load is often very large in macroseism, this makes Seismic Isolation of Isolation Layer often have lift-off phenomenon.
Therefore, shock isolating pedestal tension problem becomes one of major obstacle that seismic isolation technology applies in highrise building.
(2) isolating affection is bad
The high-rise isolating affection of Base-Isolated Building and the horizontal rigidity (damping) of shock isolating pedestal have very big relation, adopt the bearing of low-hardness rubber to be more applicable for highrise building; Highrise building is from great, and the internal damping that during vibration, shock isolating pedestal internal material intermolecular generation friction produces is large; The load that highrise building is subject to wind is large, and the stable of building is guaranteed in the damping usually by strengthening shock isolating pedestal, and when damping exceedes certain limit, the larger isolating affection of damping is poorer; Highrise building is long for natural vibration period itself, and the major diameter bearing needing horizontal rigidity larger, and the at this moment prolongation effect of Seismic Isolation of Isolation Layer to the free vibration period of structure median low structure that compares is weak, and isolating affection is difficult to ensure.
(3) Wind effects is larger
Highrise building is with the load also corresponding increasing of the increase wind of height.Current solution is the damping increasing shock isolating pedestal, namely increases the horizontal rigidity of shock isolating pedestal to guarantee the stable of building.Like this when violent earthquake, amplification may be had to structural responses such as horizontal accelerations.
Summary of the invention
The object of the present invention is to provide and a kind ofly solve the problem that the resistance to tension of shock isolating pedestal in highrise building is not enough, isolating affection is poor, ant wind load ability is weak; And solve the combined type highrise building shock isolating pedestal that the low resistance over-large displacement that can produce and low resistance cannot overcome the problem of the load of wind.
The technical solution realizing the object of the invention is:
A kind of combined type highrise building shock isolating pedestal, comprises upper junction plate, lower connecting plate, bed plate, standard stack rubber earthquake isolation support, dynamic lever, determines lever, rubber pad, limiting plate, tension adjusting screw(rod), reset pilot pin, place kick, place kick bearing, spacing reference column, resistance arm, upper junction plate, lower connecting plate such as is at the large square, standard stack rubber earthquake isolation support is evenly distributed between upper junction plate and lower connecting plate, be positioned on four angles corresponding to two junction plates, upper junction plate is connected with lower connecting plate, determining lever is U-shaped structure, two sides of U-shaped structure and base vertical, openend and the upper junction plate of U-shaped structure are connected, cylindrical spacing reference column is fixedly connected with below in the middle part of the closing end of U-shaped structure, spacing reference column one end down has bar locating hole, dynamic lever is string configuration, determining above the base between lever two sides, dynamic lever with determine lever and become right-angled intersection to arrange, immediately below dynamic lever two ends, rubber pad is set respectively, limiting plate is fixed on the upper surface of lower connecting plate, limiting plate has round spacing hole, the horizontal direction upper limit of spacing reference column in spacing hole, lower connecting plate centre has a circular hole to challenge locating hole, tension adjusting screw(rod) is from bottom to top through the plate screw hole on lower connecting plate, the adjustment screw at rubber pad centre bore and dynamic lever two ends, be connected by the steel column be evenly distributed on lower connecting plate and bed plate four angles between lower connecting plate and bed plate, bed plate center is welded with place kick bearing, place kick is movably arranged on the top of place kick bearing, reset pilot pin top is cone, bottom is cylinder, respectively there is a resistance arm vertical with cylinder both sides, cylinder lower end, and cylinder bottom surface axially has screw, has been threaded connection screw rod in screw, reset pilot pin bottom screw rod is movably arranged on the top of place kick, and plate locating hole is passed, insertion rod locating hole in the upper end of reset pilot pin.
The present invention compared with prior art, its remarkable advantage:
(1) combined type highrise building shock isolating pedestal of the present invention forms one owing to determining lever, upper junction plate and building, dynamic lever, lower connecting plate, bed plate and ground form one, dynamic lever is pressed in the top of determining lever and becomes " ten " font to intersect, vertical directions cannot move in opposite directions, so whole bearing has powerful tension effect.
(2) combined type highrise building shock isolating pedestal of the present invention adopts standard stack neoprene bearing; damping is little; isolating affection is good; the displacement produced is large; spacing reference column moves in spacing hole; there is during the two contact the effect of rigid limit, so the Seismic Isolation of Isolation Layer of bearing can not over-large displacement occur and be destroyed, have good defencive function to bearing Seismic Isolation of Isolation Layer.
(3) combined type highrise building shock isolating pedestal reset pilot pin of the present invention enters bar locating hole through plate locating hole from bottom to top, is highly resistant to the load of wind without rigid location during shake, stops the displacement of building occurred level; Reach effect of ant wind load.
(4) combined type highrise building shock isolating pedestal of the present invention is when horizontal seismic force acquires a certain degree, place kick disequilibrium and being rolled off on place kick bearing, the reset pilot pin shored by place kick loses support, skid off bar locating hole under gravity, positioning function is removed, and shock insulation function starts immediately; Self-starting effect of shock insulation can be played.
(5) combined type highrise building shock isolating pedestal of the present invention adopts four standard stack neoprene bearings, and this bearing is that in all laminated rubber bases, damping is minimum, and therefore isolating affection is good.In addition, the damping of bearing is little, and the whipping effect that superstructure produces is also little, has good protective effect to building.
Below in conjunction with accompanying drawing, the present invention is described in further detail.
Accompanying drawing explanation
Fig. 1 is the perspective view of combined type highrise building shock isolating pedestal of the present invention.
Fig. 2 is the stereo decomposing structural representation of combined type highrise building shock isolating pedestal of the present invention.
Detailed description of the invention
A kind of combined type highrise building of the present invention shock isolating pedestal, comprises upper junction plate 1, lower connecting plate 2, bed plate 3, standard stack rubber earthquake isolation support 4, dynamic lever 5, determines lever 6, rubber pad 7, limiting plate 8, tension adjusting screw(rod) 9, reset pilot pin 10, place kick 11, place kick bearing 12, spacing reference column 14, resistance arm 19, upper junction plate 1, lower connecting plate 2 such as is at the large square, standard stack rubber earthquake isolation support 4 is evenly distributed between upper junction plate 1 and lower connecting plate 2, be positioned on four angles corresponding to two junction plates, upper junction plate 1 is connected with lower connecting plate 2, determine lever 6 for U-shaped structure, two sides of U-shaped structure and base vertical, openend and the upper junction plate 1 of U-shaped structure are connected, cylindrical spacing reference column 14 is fixedly connected with below in the middle part of the closing end of U-shaped structure, spacing reference column 14 one end down has bar locating hole 15, dynamic lever 5 is string configuration, determining above the base between lever 6 two sides, dynamic lever 5 with determine the right-angled intersection of 6 one-tenth, lever and arrange, immediately below dynamic lever 5 two ends, rubber pad 7 is set respectively, limiting plate 8 is fixed on the upper surface of lower connecting plate 2, spacing steel plate 8 has round spacing hole 17, the horizontal direction upper limit of spacing reference column 14 in spacing hole 17, lower connecting plate 2 centre has a circular hole to challenge locating hole 18, tension adjusting screw(rod) 9 is from bottom to top through the plate screw hole 16 on lower connecting plate 2, the adjustment screw 13 at rubber pad 7 centre bore and dynamic lever 5 two ends, be connected by the steel column be evenly distributed on lower connecting plate 2 and bed plate 3 four angles between lower connecting plate 2 and bed plate 3, bed plate 3 center is welded with place kick bearing 12, place kick 11 is movably arranged on the top of place kick bearing 12, reset pilot pin 10 top is cone, bottom is cylinder, respectively there is a resistance arm 19 vertical with cylinder both sides, cylinder lower end, and cylinder bottom surface axially has screw, has been threaded connection screw rod in screw, reset pilot pin 10 bottom screw rod is movably arranged on the top of place kick 11, and plate locating hole 18 is passed, insertion rod locating hole 15 in the upper end of reset pilot pin 10.
Upper junction plate 1, lower connecting plate 2, bed plate 3, dynamic lever 5, determine lever 6, limiting plate 8, tension adjusting screw(rod) 9, reset pilot pin 10, resistance arm 19, spacing reference column 14 all adopt steel material.
Place kick 11 adopts steel ball.
Place kick bearing 12 adopts steel ring.
The middle part of bed plate 3 is higher than surrounding.
The duty of combined type highrise building shock isolating pedestal shows as three aspects:
First: motionless layer during shake
By upper junction plate 1 be attached thereto the lever 6 of determining connect and form, they and building connect together and form overall, and being in basic inactive state during earthquake, is also the optimum state that shock design will reach.
Second: Seismic Isolation of Isolation Layer
Be made up of four large standard stack rubber earthquake isolation supports 4 such as grade, damping is little, and isolating affection is good, and earth shock can be stoped to top structure conduction.
3rd: be shifted during shake layer
Be made up of dynamic lever 5, rubber pad 7, tension adjusting screw(rod) 9, lower connecting plate 2 and bed plate 3, they and ground connect together and form entirety, with ground moving during horizontal earthquake.
Combined type highrise building shock isolating pedestal operating principle:
1, tension
When shock isolating pedestal tension, the transmission of power:
Upper junction plate 1 (power upwards) → determine lever 6 (power upwards) → dynamic lever 5 (power is downward) → tension adjusting screw(rod) 9 (power is downward) → lower connecting plate 2 (power is downward) → bed plate 3 and ground.
2, spacing
When ground horizontal movement is excessive, the transmission of power:
Ground → bed plate 3 and lower connecting plate 2 → limiting plate 8 → spacing hole 17 → spacing reference column 14 → determine the translation of lever 6 → upper junction plate 1 → building compensatory.
3, locate
When producing the load of wind, the transmission of power:
Wind → building → upper junction plate 1 → determine lever 6 → spacing reference column 14 → bar locating hole 15 → reset pilot pin 10 → plate locating hole 18 → lower connecting plate 2 → bed plate 3 and ground.
4, shock insulation function is started
When horizontal seismic force acquires a certain degree, because place kick bearing 12 (steel ring) is little, place kick 11 (steel ball) is large, place kick 11 horizontal position poor stability, place kick 11 and place kick bearing 12, bed plate 3 can not be synchronized with the movement, place kick 11 tumbles on bed plate 3 from place kick bearing 12, due to slightly high in the middle part of bed plate, place kick can not stop at middle part, reset pilot pin 10 loses support, slippage rod locating hole 15 under gravity, positioning function is removed, and shock insulation function starts.
When place kick 11 size is constant, the stability of place kick 11 depends on the size of place kick bearing 12, i.e. the large then good stability of place kick bearing 12, the little then poor stability of place kick bearing 12.
5, the effective shock insulation of low resistance
Owing to there being positioner, without the need to by strengthening bearing damping, improving initial stiffness and controlling wind reaction.Seismic Isolation of Isolation Layer adopts standard stack rubber earthquake isolation support 4, and its damping is little, can play the isolating affection of effective " defeating a force with a tenderness ".
The operating principle of reset pilot pin 10:
Reset pilot pin 10 top is cone, and bottom is cylinder, and both sides, cylinder lower end respectively have a wing projection to be resistance arm 19, and there is an axial screw at center, bottom surface, cylinder lower end place, has a screw rod in screw.
The effect of cone
Because the load of highrise building institute wind-engaging is comparatively large, and the factor such as aging, the damage of bearing, the original reset function of bearing can not allow building reset completely after shake, and the longitudinal center line of bar locating hole 15 and plate locating hole 18 is not point-blank.
Reset pilot pin 10 firmly upwards (jack), cone inclined-plane lateral compression bar locating hole 15 import department (import department micro-" eight " font, reduce extruding and damage is caused to cone inclined-plane, avoid increasing reset difficulty), allow building reset completely, continue upwards then to complete positioning function.
The effect of bottom screw rod
Under the support of place kick 11, the resistance arm 19 of fixed reset pilot pin 10 bottom, is regulated by the rotation of bottom screw rod, guarantees that reset pilot pin 10 column part upper end enters in bar locating hole 15, makes it to reach reliable emplacement depth.In addition, bottom screw rod with place kick 11 can contact surface little, when being more conducive to earthquake like this, Rapid reversal positioning function, starts shock insulation function immediately.
The effect of rubber pad
Highrise building is from great, and Seismic Isolation of Isolation Layer height can be reduced by compression, and now dynamic lever and the vertical distance of determining between lever strengthen, and affect the stability of building.Tension adjusting screw(rod) rotates in the adjustment screw of dynamic lever, drives the dynamic downward compressing rubber pad of lever, and adjustment is moved lever and determined is zero distance contact between lever, guarantees the stable of building.Balance support moves lever, keeps two levers to be in parastate, does not affect horizontal movement during shake.
The solution of the present invention solves the deficiency (resistance to tension is not enough, isolating affection load that is poor, wind is large) that shock isolating pedestal is applied in highrise building; Occur when solving traditional problem that new problem have also been obtained solution (load that low resistance produces over-large displacement limited location device, low resistance cannot overcome wind has positioner); Utilize the impact of seismic forces, play the unstability of steel ball, the self-starting device of innovation shock insulation, simple and practical, dependable performance; Multi-functional organic assembling, is convenient to factorial praluction, and building operations is convenient.
Claims (3)
1. a combined type highrise building shock isolating pedestal, is characterized in that: comprise upper junction plate (1), lower connecting plate (2), bed plate (3), standard stack rubber earthquake isolation support (4), dynamic lever (5), determine lever (6), rubber pad (7), limiting plate (8), tension adjusting screw(rod) (9), reset pilot pin (10), place kick (11), place kick bearing (12), spacing reference column (14), resistance arm (19), upper junction plate (1), lower connecting plate (2) such as is at the large square, standard stack rubber earthquake isolation support (4) is evenly distributed between upper junction plate (1) and lower connecting plate (2), be positioned on four angles corresponding to two junction plates, upper junction plate (1) is connected with lower connecting plate (2), determine lever (6) for U-shaped structure, two sides of U-shaped structure and base vertical, the openend of U-shaped structure and upper junction plate (1) are connected, cylindrical spacing reference column (14) is fixedly connected with below in the middle part of the closing end of U-shaped structure, spacing reference column (14) one end down has bar locating hole (15), dynamic lever (5) is string configuration, be positioned at the top on the base of determining between lever (6) two sides, dynamic lever (5) with determine lever (6) and become right-angled intersection to arrange, immediately below dynamic lever (5) two ends, rubber pad (7) is set respectively, limiting plate (8) is fixed on the upper surface of lower connecting plate (2), limiting plate (8) has round spacing hole (17), the horizontal direction upper limit of spacing reference column (14) in spacing hole (17), lower connecting plate (2) centre has a circular hole to challenge locating hole (18), tension adjusting screw(rod) (9) is from bottom to top through the plate screw hole (16) on lower connecting plate (2), the adjustment screw (13) at rubber pad (7) centre bore and dynamic lever (5) two ends, be connected by the steel column be evenly distributed on lower connecting plate (2) and bed plate (3) four angles between lower connecting plate (2) and bed plate (3), bed plate (3) center is welded with place kick bearing (12), place kick (11) is movably arranged on the top of place kick bearing (12), reset pilot pin (10) top is cone, bottom is cylinder, respectively there is a resistance arm (19) vertical with cylinder both sides, cylinder lower end, cylinder bottom surface axially has screw, has been threaded connection screw rod in screw, reset pilot pin (10) bottom screw rod is movably arranged on the top of place kick (11), and plate locating hole (18) is passed, insertion rod locating hole (15) in the upper end of reset pilot pin (10), wherein, upper junction plate (1), lower connecting plate (2), bed plate (3), dynamic lever (5), determine lever (6), limiting plate (8), tension adjusting screw(rod) (9), reset pilot pin (10), resistance arm (19), spacing reference column (14) all adopt steel material, wherein, place kick (11) adopts steel ball.
2. a kind of combined type highrise building shock isolating pedestal according to claim 1, is characterized in that: described place kick bearing (12) adopts steel ring.
3. a kind of combined type highrise building shock isolating pedestal according to claim 1, is characterized in that: the middle part of described bed plate (3) is higher than surrounding.
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| CN201310687391.4A CN103643749B (en) | 2013-12-13 | 2013-12-13 | Combined type highrise building shock isolating pedestal |
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| CN201310687391.4A CN103643749B (en) | 2013-12-13 | 2013-12-13 | Combined type highrise building shock isolating pedestal |
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| CN103643749B true CN103643749B (en) | 2016-03-23 |
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| CN103981951B (en) * | 2014-05-30 | 2016-05-25 | 刘浩琳 | Combined type ball shock isolating pedestal |
| CN107190878A (en) * | 2017-07-26 | 2017-09-22 | 广州大学 | A kind of rubber hose rolling shock isolating pedestal for base isolation building system |
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| CN109722986B (en) * | 2018-12-11 | 2020-09-01 | 九江职业技术学院 | Rotary friction damping shock-absorbing support device |
| CN110552546B (en) * | 2019-09-18 | 2020-11-10 | 中建二局第二建筑工程有限公司 | Method for building underground parking lot waterproof facility by using tower crane |
| CN119507572B (en) * | 2025-01-14 | 2025-04-08 | 山西省建筑科学研究院检测中心有限公司 | Building shock insulation rubber support |
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