CN106638281B - Friction pendulum earthquake isolating equipment - Google Patents

Friction pendulum earthquake isolating equipment Download PDF

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Publication number
CN106638281B
CN106638281B CN201510724526.9A CN201510724526A CN106638281B CN 106638281 B CN106638281 B CN 106638281B CN 201510724526 A CN201510724526 A CN 201510724526A CN 106638281 B CN106638281 B CN 106638281B
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CN
China
Prior art keywords
elastoplasticity
seat board
plate
friction pendulum
chute
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Expired - Fee Related
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CN201510724526.9A
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Chinese (zh)
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CN106638281A (en
Inventor
王伟强
张银喜
罗勇欢
曹志峰
李世珩
卜继玲
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Zhuzhou Times New Material Technology Co Ltd
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Zhuzhou Times New Material Technology Co Ltd
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    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01DCONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D19/00Structural or constructional details of bridges
    • E01D19/04Bearings; Hinges
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01DCONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D19/00Structural or constructional details of bridges
    • E01D19/04Bearings; Hinges
    • E01D19/041Elastomeric bearings

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Buildings Adapted To Withstand Abnormal External Influences (AREA)
  • Vibration Prevention Devices (AREA)

Abstract

Friction pendulum earthquake isolating equipment, including friction pendulum shock isolating pedestal and braking energy dissipating component, friction pendulum shock isolating pedestal includes the upper base plate being sequentially stacked from top to bottom, seat board in double spheres, lower seat board and bottom plate, the chute set along friction pendulum shock isolating pedestal fore-and-aft direction is provided with the end face center of bottom plate, brake energy dissipating component and keep off dynamic and elastoplasticity energy dissipation piece including braking, the left and right sides that two elastoplasticity energy dissipation pieces are symmetrically arranged on lower seat board is parallel with chute, elastoplasticity energy dissipation piece and centre position of the bottom plate along chute direction are affixed, brake baffle is arranged on the outside of lower seat board and is fixed between two elastoplasticity energy dissipation pieces, brake baffle is placed on bottom plate with chute sliding cooperation, lower seat board promotes brake baffle along slide to pulling force of the elastoplasticity energy dissipation piece generation along chute direction along slide.The friction pendulum earthquake isolating equipment of the present invention, the space occupancy rate of braking energy dissipating component is low, compact-sized stabilization, can effectively prevent bridge from falling the generation of beam phenomenon.

Description

Friction pendulum earthquake isolating equipment
Technical field
The invention belongs to bridge to subtract technical field of isolation, and in particular to one kind has energy-dissipating and shock-absorbing function again can anti-falling stop The friction pendulum earthquake isolating equipment that beam phenomenon occurs.
Background technology
Under geological process, bridge superstructure falls one of the main reason for beam is bridge collapse.In order to solve bridge Superstructure easily falls beam problem, and it is most simple, economical and effective that vibration absorption and isolation support is set between the upper and lower part structure of bridge Measure.Existing friction pendulum shock isolating pedestal is segmented into two classes:One kind is hold-down support, and one kind is movable bearing support.In earthquake Only have a small number of bearings to start immediately under effect, in hold-down support and subtract shock insulation mechanism, transmit most of earthquake water of the whole bridge that collapses Flat load, but design dyscalculia;And movable bearing support, because coefficient of friction is smaller, most of bearings are in larger earthquake horizontal loading Effect is lower to make horizontal slip, can not immediately start and subtract shock insulation mechanism, causes beam and bridge pier to produce larger relative displacement, easily occurs Fall beam harm.
Application No. 201410247967.X, it is entitled《A kind of friction pendulum support equipped with doughnut-shaped steel plate》Chinese invention Patent application, disclose a kind of friction pendulum support equipped with doughnut-shaped steel plate, including upper anchoring rods, upper bracket plate, high-strength bolt, ball Hat, upper wearing plate, doughnut-shaped steel plate, lower wearing plate, lower support plate, lower anchoring rods and sliding surface;The upper bracket plate with it is upper wear-resisting Contact for cylinder between plate, contacted between lower support plate and lower wearing plate for cylinder, the spherical crown and upper bracket plate, lower support plate Between contact be sphere-contact, be hinged between spherical crown top and upper wearing plate, be provided between upper bracket plate and lower support plate Doughnut-shaped steel plate, doughnut-shaped steel plate upper end are anchored at upper bracket plate bottom by high-strength bolt, and doughnut-shaped steel plate lower end passes through high-strength bolt It is anchored at the top of lower support plate.Above-mentioned patent application by installing doughnut-shaped steel plate between upper bracket plate and lower support plate, During earthquake, doughnut-shaped steel plate can play spacing work after being straightened by the plastic deformation consumed energy of itself to superstructure With.Doughnut-shaped steel plate is larger installed in its peripheral space occupancy rate of bearing, furthermore the semicircular structure of doughnut-shaped steel plate, in bearing just Under normal use state, doughnut-shaped steel plate may be caused doughnut-shaped steel plate that plastic deformation occurs to early by torsion, and energy dissipating efficiency is lowered, It is less come the energy consumed when earthquake occurs, then by the plastic deformation of itself.In the state of normal use, such as initial ring When shape steel plate is given birth to plastic deformation by pili torti, doughnut-shaped steel plate should be changed in time, because a little doughnut-shaped steel plates are reliable in service life and energy dissipating Property is limited by its shape and structure.
Application No. 201220418050.8, it is entitled《A kind of ε shaped steel damping dissipation energy ball-type steel bridge beam support》In The practical new patent of state, discloses a kind of ε shaped steel damping dissipation energy ball-type steel bridge beam support, including ball-type Steel Bridge support body and For the ε shaped steel damping elements of damping dissipation energy.The ε shaped steel damping element includes being arranged side by side and opening direction is consistent Two segmental arcs, intersecting formula structure, the other end and the intersecting end of being integrally formed in one end of two segmental arcs form ε shaped steel damping elements Three pin, mounting hole is equipped with three pin.Support body include upper anchoring piece, upper base plate, piston, spherical crown liner plate, bottom basin, under Seat board and lower anchoring piece.Support body is provided with sliding surface and guide rail, guide groove in damping direction, and bearing can be slided along guide groove It is dynamic.In above-mentioned patent, ε shaped steel damping element is mounted in the both sides of bearing, during earthquake, passes through ε shaped steel damping element and is plastically deformed Absorb seismic energy.The size of ε shaped steel damping elements is larger, and space occupancy rate is big, furthermore the centre of ε shaped steel damping elements Pin is on piston, and a pin on both sides is on upper base plate, and three pin are not in sustained height plane, when piston and the seat of honour When plate occurred level slides relatively, ε shaped steel damping element is horizontally and vertically to deform, the damping of ε shaped steel Mounting hole on element pin can also deform in the deformation process of ε shaped steel damping elements, can not ensure that ε shaped steel damps The structural stability that element is connected with bearing.
In summary, it is the shortcomings that bearing in the prior art with damping energy dissipation device:
First, damping energy dissipation device, on bearing, space-consuming is big, and the attachment structure of damping energy dissipation device and bearing is steady It is qualitative not strong.Second, damping energy dissipation device is connected with the upper and lower structure directly with bearing, subtracting every damping consumption in energy dissipation The deformation process of energy device is complicated, and inconsistent with the direction of the horizontal slip of bearing, the structural compactness being connected with bearing is not high, resistance There is the risk that damping energy dissipation efficiency is reduced or even failed in Buddhist nun's energy-dissipating device, reliability is not high under bearing normal operating condition.
The content of the invention
The present invention is for damping energy dissipation device space occupancy rate in the prior art is big, seat structure stability is not strong and damps The not high technical problem of energy-dissipating device reliability, there is provided a kind of friction pendulum earthquake isolating equipment, on friction pendulum shock isolating pedestal Installation braking energy dissipating component, the space occupancy rate of braking energy dissipating component is low, compact-sized stabilization, subtract shock insulation mechanism simply can be effective Restriction friction pendulum shock isolating pedestal horizontal slide displacement, prevent bridge from falling the generation of beam phenomenon.
It is to reach above-mentioned purpose the technical solution adopted by the present invention:Friction pendulum earthquake isolating equipment, including friction pendulum every Bearing and braking energy dissipating component are shaken, upper base plate that friction pendulum shock isolating pedestal includes being sequentially stacked from top to bottom, seat in double spheres Plate, lower seat board and bottom plate, seat board forms between upper base plate and lower seat board slide sphere friction pair and rotation respectively in double spheres Sphere friction pair, it is lower that planar slide friction pair is formed between seat board and bottom plate, edge is provided with the end face center of described bottom plate and is rubbed The chute that pendulum-type shock isolating pedestal fore-and-aft direction is set is wiped, lower seat board bottom surface has the guide rail coordinated with chute sliding;
It is characterized in that described braking energy dissipating component includes brake baffle and elastoplasticity energy dissipation piece, the bullet modeling described in two Property energy dissipation piece be symmetrically arranged on lower seat board left and right sides it is parallel with chute, elastoplasticity energy dissipation piece and bottom plate are along chute direction Between position it is affixed, described brake baffle be arranged on the outside of lower seat board and be fixed on the elastoplasticity energy dissipation piece described in two it Between, described brake baffle is placed on bottom plate with chute sliding cooperation;
Lower seat board promotes brake baffle to produce elastoplasticity energy dissipation piece along chute direction along slide along slide Pulling force.
Preferably, described plate upper surface has the otic placode for being symmetrically distributed in chute left and right sides, and described otic placode is located at On bottom plate left and right horizontal center line, described elastoplasticity energy dissipation piece is made up of two blocks of elastoplasticity energy dissipating plates along the alignment of chute direction, institute The one end for the elastoplasticity energy dissipating plate stated is affixed with otic placode and attachment force is more than the largest of about beam force of elastoplasticity energy dissipating plate, and described is upper The front and rear sides of seat board are equipped with brake baffle, are symmetrical arranged before and after the brake baffle described in two, described elastoplasticity energy dissipating The other end of plate is fixed with brake baffle, when elastoplasticity energy dissipating plate is plastically deformed, the largest of about beam force caused by its own, The connection of ring elastoplasticity energy dissipating plate and bottom plate will not be broken, elastoplasticity energy dissipating plate keeps affixed shape with bottom plate all the time in the plastic state State.
Preferably, described brake baffle is that both ends have connection otic placode, described connection otic placode and elastoplasticity energy dissipating plate End is affixed and attachment force is more than the largest of about beam force of elastoplasticity energy dissipating plate, when elastoplasticity energy dissipating plate is plastically deformed, its The largest of about beam force caused by itself, the connection that ring elastoplasticity energy dissipating plate moves plate with braking shelves will not be broken, brake baffle is in elastoplasticity Slided all the time with the affixed integral level to friction pendulum shock isolating pedestal of elastoplasticity energy dissipating plate under the mecystasis of energy dissipating plate into Row limitation.
Preferably, the length of side, the two brake baffles length of side and two along chute direction of the described lower seat board along chute direction The plastic deformation maximum displacement sum of individual elastoplasticity energy dissipating plate is less than the length of chute, ensures when elastoplasticity energy dissipating plate occurs most During large plastometric set, brake baffle still keeps sliding to coordinate with chute, limits the horizontal slip of lower seat board.
Preferably, described elastoplasticity energy dissipating plate is more than described for the elastic-plastic damping steel plate and intensity of big at both ends and small in middle Friction pendulum shock isolating pedestal maximum horizontal load, ensure elastoplasticity energy dissipating plate in friction pendulum shock isolating pedestal normal use shape It will not be surrendered under state.
Preferably, described brake baffle is bonded or is spaced with the side of described lower seat board, described brake baffle Intensity is more than the maximum horizontal load of described friction pendulum shock isolating pedestal, ensures that brake baffle normally makes in friction pendulum shock insulation It will not be surrendered with state.
Preferably, described otic placode is connected with the end of elastoplasticity energy dissipating plate by the shearing bolt of four rectangular arrangeds, Described connection otic placode is connected with the end of elastoplasticity energy dissipating plate by the shearing bolt of four rectangular arrangeds, ensures bottom plate and bullet The bonding strength of plasticity energy dissipating plate and brake baffle and elastoplasticity energy dissipating plate.
The operation principle of friction pendulum earthquake isolating equipment of the present invention is:In normal state, friction pendulum of the invention every The institute that shake device provides friction pendulum shock isolating pedestal is functional, and elastoplasticity energy dissipation piece is in elastic stage, can bear friction pendulum The horizontal load of shock isolating pedestal, restraining force will not be produced to the relative slip between lower seat board and bottom plate, brake baffle will not limit The horizontal slip of friction pendulum shock isolating pedestal processed;Under earthquake state, the horizontal load that friction pendulum shock isolating pedestal is subject to is more than During maximum horizontal load under its normal condition, brake baffle is operated state, pulls elastoplasticity energy dissipation piece to enter plasticity shape State, by plastic history earthquake energy, elastoplasticity energy dissipation piece produces restraining force by being plastically deformed, with brake baffle The common horizontal slip for limiting friction pendulum shock isolating pedestal, so as to which start friction pendulum shock isolating pedestal immediately subtracts shock insulation mechanism, Prevent bridge from falling beam.
The beneficial effects of the invention are as follows:Braking energy dissipating component includes brake baffle in the friction pendulum earthquake isolating equipment of the present invention With elastoplasticity energy dissipation piece, elastoplasticity energy dissipation piece is arranged on the left and right sides of lower seat board and fixed with bottom plate, and brake baffle is slided with chute Move cooperation to be placed on bottom plate, braking energy dissipating component is arranged on bottom plate, and its space occupancy rate is low, and brake baffle is fixed on two bullets Between plasticity energy dissipation piece, lower seat board produces thrust relative to horizontal slide of bottom plate to brake baffle, and brake baffle is slided along chute It is dynamic that pulling force, the deformation direction of elastoplasticity energy dissipation piece and the horizontal slip side of friction pendulum shock isolating pedestal are produced to elastoplasticity energy dissipation piece To consistent, compact-sized stabilization of the friction pendulum earthquake isolating equipment during shock insulation is subtracted.Friction is limited by braking energy dissipating component The horizontal slip of pendulum-type shock isolating pedestal, the plastic deformation earthquake energy of elastoplasticity energy dissipation piece, it is simple to subtract shock insulation mechanism.Just Under normal state, there is the repertoire of conventional friction pendulum-type shock isolating pedestal, under earthquake state, can immediately play and subtract shock insulation machine System, the horizontal slip of friction pendulum shock isolating pedestal is limited, prevents bridge from falling the generation of beam phenomenon.
Brief description of the drawings
Fig. 1 is the dimensional structure diagram of friction pendulum earthquake isolating equipment in embodiment.
Fig. 2 is the planar structure schematic diagram of friction pendulum earthquake isolating equipment in embodiment.
Fig. 3 is the side view of friction pendulum earthquake isolating equipment in embodiment.
Embodiment
Embodiments of the invention are elaborated below in conjunction with the accompanying drawings.
As shown in Figure 1 to Figure 3, friction pendulum earthquake isolating equipment, including friction pendulum shock isolating pedestal and braking energy dissipating component, rub Seat board 32, lower seat board 33 and bottom plate 34 in the upper base plate 31, double spheres that pendulum-type shock isolating pedestal includes being sequentially stacked from top to bottom are wiped, Seat board 32 forms between upper base plate 31 and lower seat board 33 slide sphere friction pair and rotation spherical friction pair respectively in double spheres, Planar slide friction pair is formed between lower seat board 33 and bottom plate 34, is provided with the end face center of described bottom plate 34 along friction pendulum The chute 35 that shock isolating pedestal fore-and-aft direction is set, the lower bottom surface of seat board 33 have the guide rail coordinated with the sliding of chute 35;
Described braking energy dissipating component includes brake baffle 1 and elastoplasticity energy dissipation piece 2, the elastoplasticity energy dissipation piece described in two 2 be symmetrically arranged on lower seat board 33 left and right sides it is parallel with chute 35, the described upper surface of bottom plate 34, which has, is symmetrically distributed in cunning The otic placode 34.1 of the left and right sides of groove 35, described otic placode 34.1 are located on the left and right horizontal center line of bottom plate 34, described elastoplasticity energy dissipating Part 2 is made up of two blocks of elastoplasticity energy dissipating plates 2.1 along the alignment of the direction of chute 35, one end of described elastoplasticity energy dissipating plate 2.1 and ear Plate 34.1 is affixed, and attachment force is more than the largest of about beam force of elastoplasticity energy dissipating plate 2, ensures that plasticity occurs in elastoplasticity energy dissipating plate 2.1 During deformation, the largest of about beam force caused by its own, the connection of ring elastoplasticity energy dissipating plate 2.1 and bottom plate 34 will not be broken.Described is upper The front and rear sides of seat board 31 are equipped with brake baffle 1, are symmetrical arranged before and after the brake baffle 1 described in two, described braking gear Plate 1 is that both ends have connection otic placode 11, and described connection otic placode 11 is affixed with elastoplasticity energy dissipating 2.1 other ends of plate and attachment force is big In the largest of about beam force of elastoplasticity energy dissipating plate 2.1.Ensure when elastoplasticity energy dissipating plate 2.1 is plastically deformed, its own generation The largest of about beam force, the connection of ring elastoplasticity energy dissipating plate 2.1 and brake baffle 1, described brake baffle 1 and chute 35 will not be broken Sliding cooperation is placed on bottom plate 34.Lower seat board 33 slides promotion brake baffle 1 and slided along chute 35 along chute 35 to disappear to elastoplasticity Energy part 2 produces the pulling force along the direction of chute 35.The intensity of described brake baffle 1 is more than described friction pendulum shock isolating pedestal Maximum horizontal load, ensure that brake baffle 1 under friction pendulum shock insulation normal operating condition, will not be surrendered.
The length of side, two brake baffles 1 length of side and two along chute 35 direction of the described lower seat board 33 along the direction of chute 35 The plastic deformation maximum displacement sum of individual elastoplasticity energy dissipating plate 2.1 is less than the length of chute 35, and elastoplasticity energy dissipating plate is worked as in guarantee During 21 generation maximum plastic deformation, brake baffle 1 still keeps sliding to coordinate with chute 35, the horizontal slip of seat board under limiting. Described elastoplasticity energy dissipating plate 2.1 for big at both ends and small in middle elastic-plastic damping steel plate and intensity be more than described friction pendulum every The maximum horizontal load of bearing is shaken, ensures that elastoplasticity energy dissipating plate 2.1 will not occur under friction pendulum shock isolating pedestal use state Surrender.To ensure bottom plate 34 and elastoplasticity energy dissipating plate 2.1 and the bonding strength of brake baffle 1 and elastoplasticity energy dissipating plate 2.1, ear Plate 34.1 is connected with the end of elastoplasticity energy dissipating plate 2.1 by the shearing bolt of four rectangular arrangeds, and connection otic placode 11 is moulded with bullet Property energy dissipating plate 2.1 end pass through the shearing bolts of four rectangular arrangeds and connect.
In above-described friction pendulum earthquake isolating equipment, between brake baffle 1 can be formed between the side of lower seat board 33 Every this interval can meet friction pendulum shock isolating pedestal under normal operating condition, and friction pendulum shock isolating pedestal is born normally Horizontal slip during horizontal load;Brake baffle 1 can also fit with the side of lower seat board 33, and elastoplasticity energy dissipating plate 2.1 can The horizontal load of friction pendulum shock isolating pedestal is born, in normal state, elastoplasticity energy dissipating plate 2.1 is in elastic stage, will not The level of friction pendulum shock isolating pedestal is slided into row constraint.When designing elastoplasticity energy dissipating plate 2.1, to meet friction pendulum every The horizontal force requirement of bearing is shaken, is specifically referred to, is rubbed when the pulling force that elastoplasticity energy dissipating plate 2.1 is born is less than under normal condition The maximum horizontal load of pendulum-type shock isolating pedestal is wiped, elastoplasticity energy dissipating plate 2.1 is in elastic stage, to friction pendulum shock isolating pedestal Level is slided and is not produced constraint.When the pulling force that elastoplasticity energy dissipating plate 2.1 is born is more than friction pendulum shock isolating pedestal under normal condition Maximum horizontal load, elastoplasticity energy dissipating plate 2.1 is in mecystasis, plastic degeneration occurs and consumes friction pendulum shock isolating pedestal Level slides kinetic energy, limits the horizontal slip of friction pendulum shock isolating pedestal.
Above-described friction pendulum earthquake isolating equipment, in normal state, friction pendulum earthquake isolating equipment provide friction pendulum The institute of shock isolating pedestal is functional, and elastoplasticity energy dissipation piece 2 is in elastic stage, can bear the horizontal load of friction pendulum shock isolating pedestal Lotus, will not produce restraining force to the relative slip between lower seat board 33 and bottom plate 34, brake baffle 1 without limitation on friction pendulum every Shake the horizontal slip of bearing;Under earthquake state, the horizontal load that friction pendulum shock isolating pedestal is subject to is more than under its normal condition Maximum horizontal load when, brake baffle 1 is operated state, pulls elastoplasticity energy dissipation piece 2 to enter mecystasis, passes through plasticity Deformation process earthquake energy, elastoplasticity energy dissipation piece 2 produce restraining force by being plastically deformed, limited jointly with brake baffle 1 The horizontal slip of friction pendulum shock isolating pedestal, so as to which start friction pendulum shock isolating pedestal immediately subtracts shock insulation mechanism, prevent bridge Fall beam.
Energy dissipating component is braked in above-mentioned friction pendulum earthquake isolating equipment includes brake baffle 1 and elastoplasticity energy dissipation piece 2, bullet modeling Property energy dissipation piece 2 be arranged on the left and right sides of lower seat board 33 and fixed with bottom plate 34, brake baffle 1 and chute slide 35 shifting cooperations and are placed in bottom On plate 34, braking energy dissipating component is set on the bottom sheet 34, and its space occupancy rate is low, and brake baffle 1 is fixed on two elastoplasticity and disappeared Between energy part 2, lower seat board 33 produces thrust relative to horizontal slide of bottom plate 34 to brake baffle 1, and brake baffle 1 is slided along chute It is dynamic that pulling force, the deformation direction of elastoplasticity energy dissipation piece 2 and the horizontal slip of friction pendulum shock isolating pedestal are produced to elastoplasticity energy dissipation piece 2 Direction is consistent, compact-sized stabilization of the friction pendulum earthquake isolating equipment during shock insulation is subtracted.Rubbed by braking the restriction of energy dissipating component The horizontal slip of pendulum-type shock isolating pedestal is wiped, the plastic deformation earthquake energy of elastoplasticity energy dissipation piece 2, it is simple to subtract shock insulation mechanism. In normal state, there is the repertoire of conventional friction pendulum-type shock isolating pedestal, under earthquake state, can immediately play and subtract shock insulation Mechanism, the horizontal slip of friction pendulum shock isolating pedestal is limited, prevents bridge from falling the generation of beam phenomenon.
Completely description is carried out to the technical scheme of embodiments of the invention, it is necessary to which explanation is described above in association with accompanying drawing Embodiment be only the present invention part of the embodiment.Based on the embodiment in the present invention, those of ordinary skill in the art exist The every other embodiment obtained on the premise of not making creative work, belongs to the scope of protection of the invention.For example, One block of elastoplasticity energy dissipating plate 2.1 can be only connected on otic placode 34.1, and braking is set in side only side before and after lower seat board 33 Baffle plate 1, one end of elastoplasticity energy dissipating plate 2.1 are connected with otic placode 34.1, and the other end is connected with brake baffle 1, by two during use Friction pendulum shock isolating pedestal is bonded in the side for being not provided with brake baffle 1, and the bottom plate 34 described in two is bonded, two chutes 35 Alignment connection.Under earthquake state, two friction pendulum shock isolating pedestals of fitting are limited calmly along horizontal slide of front and rear sides.Need It is noted that the braking energy dissipating component in the present invention can be not only mounted on friction pendulum shock isolating pedestal, ball can also be mounted in The horizontal slip of bearing is limited on type bearing or pot bearing.

Claims (7)

1. friction pendulum earthquake isolating equipment, including friction pendulum shock isolating pedestal and braking energy dissipating component, friction pendulum shock isolating pedestal bag Include the upper base plate being sequentially stacked from top to bottom(31), seat board in double spheres(32), lower seat board(33)And bottom plate(34), in double spheres Seat board(32)Respectively with upper base plate(31)With lower seat board(33)Between formed and slide sphere friction pair and rotation spherical friction pair, under Seat board(33)With bottom plate(34)Between formed planar slide friction pair, described bottom plate(34)End face center at be provided with along friction The chute that pendulum-type shock isolating pedestal fore-and-aft direction is set(35), lower seat board(33)Bottom surface has and chute(35)What sliding coordinated leads Rail;
It is characterized in that described braking energy dissipating component includes brake baffle(1)With elastoplasticity energy dissipation piece(2), the bullet described in two Plasticity energy dissipation piece(2)Symmetrically it is arranged on lower seat board(33)Left and right sides and chute(35)It is parallel, elastoplasticity energy dissipation piece(2)The bottom of with Plate(34)Along chute(35)The centre position in direction is affixed, described brake baffle(1)It is arranged on lower seat board(33)Outside and It is fixed on the elastoplasticity energy dissipation piece described in two(2)Between, described brake baffle(1)With chute(35)Sliding cooperation is placed in bottom Plate(34)On;
Lower seat board(33)Along chute(35)Slide and promote brake baffle(1)Along chute(35)Slide to elastoplasticity energy dissipation piece(2)Production Give birth to along chute(35)The pulling force in direction.
2. friction pendulum earthquake isolating equipment according to claim 1, it is characterised in that described bottom plate(34)Upper surface has It is symmetrically distributed in chute(35)The otic placode of left and right sides(34.1), described otic placode(34.1)Positioned at bottom plate(34)Left and right horizontal center line On, described elastoplasticity energy dissipation piece(2)By two blocks of elastoplasticity energy dissipating plates(2.1)Along chute(35)Direction alignment composition, it is described Elastoplasticity energy dissipating plate(2.1)One end and otic placode(34.1)Affixed and attachment force is more than elastoplasticity energy dissipating plate(2.1)The largest of about Beam force, described upper base plate(31)Front and rear sides be equipped with brake baffle(1), the brake baffle described in two(1)It is front and rear right Claim to set, described elastoplasticity energy dissipating plate(2.1)The other end and brake baffle(1)It is fixed.
3. friction pendulum earthquake isolating equipment according to claim 2, it is characterised in that described brake baffle(1)Have for both ends There is connection otic placode(11), described connection otic placode(11)With elastoplasticity energy dissipating plate(2.1)End is affixed and attachment force is moulded more than bullet Property energy dissipating plate(2.1)The largest of about beam force.
4. friction pendulum earthquake isolating equipment according to claim 3, it is characterised in that described lower seat board(33)Along chute (35)The length of side in direction, two brake baffles(1)Along chute(35)The length of side in direction and two elastoplasticity energy dissipating plates(2.1)Modeling Property deformation maximum displacement sum be less than chute(35)Length.
5. friction pendulum earthquake isolating equipment according to claim 4, it is characterised in that described elastoplasticity energy dissipating plate(2.1)For The elastic-plastic damping steel plate and intensity of big at both ends and small in middle are more than the maximum horizontal load of described friction pendulum shock isolating pedestal.
6. friction pendulum earthquake isolating equipment according to claim 5, it is characterised in that described brake baffle(1)With it is described Lower seat board(33)Side fitting or interval, described brake baffle(1)Intensity be more than described friction pendulum shock isolating pedestal Maximum horizontal load.
7. friction pendulum earthquake isolating equipment according to claim 6, it is characterised in that described otic placode(34.1)With elastoplasticity Energy dissipating plate(2.1)End pass through the shearing bolts of four rectangular arrangeds and connect, described connection otic placode(11)Disappear with elastoplasticity Can plate(2.1)End pass through the shearing bolts of four rectangular arrangeds and connect.
CN201510724526.9A 2015-11-02 2015-11-02 Friction pendulum earthquake isolating equipment Expired - Fee Related CN106638281B (en)

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CN106638281B true CN106638281B (en) 2018-03-09

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KR20120037083A (en) * 2010-10-11 2012-04-19 주식회사 베스탑 Repairing and exchanging to easy changing of bridge bearing
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CN202298449U (en) * 2011-10-14 2012-07-04 株洲时代新材料科技股份有限公司 Pendulum type friction damping support
CN202347660U (en) * 2011-10-14 2012-07-25 株洲时代新材料科技股份有限公司 Tensile frictional swinging support

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KR20120037083A (en) * 2010-10-11 2012-04-19 주식회사 베스탑 Repairing and exchanging to easy changing of bridge bearing
CN202227260U (en) * 2011-09-06 2012-05-23 同济大学 Self-resetting shock attenuation bearing with external elastic resetting device
CN102409609A (en) * 2011-09-23 2012-04-11 株洲时代新材料科技股份有限公司 Method capable of dissipating effect of horizontal earthquake force during earthquake and bridge bearing
CN202298449U (en) * 2011-10-14 2012-07-04 株洲时代新材料科技股份有限公司 Pendulum type friction damping support
CN202347660U (en) * 2011-10-14 2012-07-25 株洲时代新材料科技股份有限公司 Tensile frictional swinging support

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