CN106638281A - Friction pendulum isolation device - Google Patents
Friction pendulum isolation device Download PDFInfo
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- CN106638281A CN106638281A CN201510724526.9A CN201510724526A CN106638281A CN 106638281 A CN106638281 A CN 106638281A CN 201510724526 A CN201510724526 A CN 201510724526A CN 106638281 A CN106638281 A CN 106638281A
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- friction pendulum
- elastoplasticity
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- energy dissipation
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- 238000002955 isolation Methods 0.000 title abstract description 8
- 230000021715 photosynthesis, light harvesting Effects 0.000 claims abstract description 52
- 230000035939 shock Effects 0.000 claims description 67
- 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 claims description 52
- 229910000831 Steel Inorganic materials 0.000 claims description 33
- 239000010959 steel Substances 0.000 claims description 33
- 238000013016 damping Methods 0.000 claims description 27
- 238000010008 shearing Methods 0.000 claims description 6
- 238000006073 displacement reaction Methods 0.000 claims description 5
- 238000010030 laminating Methods 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims 1
- 238000009413 insulation Methods 0.000 description 13
- 238000004873 anchoring Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000000452 restraining effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 206010049669 Dyscalculia Diseases 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007850 degeneration Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 208000005833 pili torti Diseases 0.000 description 1
- 239000000837 restrainer Substances 0.000 description 1
- 230000002459 sustained effect Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/04—Bearings; Hinges
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/04—Bearings; Hinges
- E01D19/041—Elastomeric 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
A friction pendulum isolation device includes a friction pendulum isolation bearing and a brake energy dissipation assembly, wherein the friction pendulum isolation bearing comprises an upper seat plate, a double spherical surface middle seat plate, a lower seat plate and a bottom plate which are overlapped from top to bottom, the center of the top surface of the bottom plate is provided with a sliding groove arranged along the fore-and-aft direction of the friction pendulum isolation bearing, the brake energy dissipation assembly includes brake baffles and elastoplastic energy dissipation components, the two elastoplastic energy dissipation components are symmetrically arranged on the left and right sides of the lower seat plate and parallel with the sliding groove, the elastoplastic energy dissipation components are fixedly connected with the middle position, along the direction of the sliding groove, of the bottom plate, the brake baffles are arranged on the outer side of the lower seat plate and are fixed between the two elastoplastic energy dissipation components, the brake baffles are arranged on the bottom plate in a manner of being in slide fit with the sliding groove, the lower seat plate slides along the sliding groove to push the brake baffles to slide along the sliding groove so as to generate the tensile force along the direction of the sliding groove for the elastoplastic energy dissipation component. According to the friction pendulum isolation device, the brake energy dissipation assembly has low space occupation rate, compact and stable structure, and can effectively prevent the bridge falling beam phenomenon.
Description
Technical field
The invention belongs to bridge subtracts technical field of isolation, and in particular to it is a kind of i.e. have energy-dissipating and shock-absorbing function again can restrainer phenomenon generation friction pendulum earthquake isolating equipment.
Background technology
Under geological process, the beam that falls of bridge superstructure is the one of the main reasons of bridge collapse.In order to solve the problems, such as that bridge superstructure easily falls beam, it is most simple, economy, effective measures that vibration absorption and isolation support is arranged between the upper and lower part structure of bridge.Existing friction pendulum shock isolating pedestal is segmented into two classes：One class is hold-down support, and a class is movable bearing support.Under geological process, only have minority bearing to start immediately in hold-down support and subtract shock insulation mechanism, transmit most of earthquake horizontal loading of the whole bridge that collapses, but design dyscalculia；And movable bearing support is less due to coefficient of friction, most of bearings make level slip under larger earthquake horizontal loads, it is impossible to start subtract shock insulation mechanism immediately, cause beam and bridge pier to produce larger relative displacement, easily occur 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, spherical crown, upper wearing plate, doughnut-shaped steel plate, lower wearing plate, lower support plate, lower anchoring rods and sliding surface；Contact for cylinder between the upper bracket plate and upper wearing plate, contact for cylinder between lower support plate and lower wearing plate, the spherical crown is contacted as sphere-contact between upper bracket plate, lower support plate, it is to be hinged between spherical crown top and upper wearing plate, doughnut-shaped steel plate is installed between upper bracket plate and lower support plate, doughnut-shaped steel plate upper end is anchored at upper bracket plate bottom by high-strength bolt, and doughnut-shaped steel plate lower end is anchored at lower support plate top by high-strength bolt.By installing doughnut-shaped steel plate between upper bracket plate and lower support plate, in earthquake, doughnut-shaped steel plate can play position-limiting action after being straightened by the plastic deformation consumed energy of itself to superstructure for above-mentioned patent application.It is larger that doughnut-shaped steel plate is arranged on its space occupancy rate of bearing periphery, furthermore the semicircular structure of doughnut-shaped steel plate, under bearing normal operating condition, doughnut-shaped steel plate may be caused doughnut-shaped steel plate that plastic deformation occurs to early by torsion, energy dissipating efficiency is lowered, when there is earthquake, then the energy consumed by the plastic deformation of itself is less.In the state of normal use, when such as there is doughnut-shaped steel plate by pili torti life plastic deformation, doughnut-shaped steel plate should be in time changed, because a little doughnut-shaped steel plates are limited in service life and energy dissipating reliability 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》The practical new patent of China, disclose a kind of ε shaped steel damping dissipation energy ball-type steel bridge beam support, including ball-type Steel Bridge support body and the ε shaped steel damping elements for damping dissipation energy.The ε shaped steel damping element includes being arranged side by side and two segmental arcs that opening direction is consistent, and one end of two segmental arcs is intersected and is integrally formed three pin that formula structure, the other end and intersecting end form ε shaped steel damping elements, and on three pin installing hole is equipped with.Support body includes upper anchoring piece, upper base plate, piston, spherical crown liner plate, bottom basin, lower seat board and lower anchoring piece.Support body is provided with sliding surface and guide rail, guide-track groove in damping direction, and bearing can slide along guide-track groove.In above-mentioned patent, ε shaped steel damping elements are mounted in the both sides of bearing, during earthquake, by ε shaped steel damping element plastic deformation seismic energy are absorbed.The size of ε shaped steel damping elements is larger, space occupancy rate is big, furthermore a pin for the centre of ε shaped steel damping elements is mounted on piston, a pin on both sides is mounted on upper base plate, three pin are not in sustained height plane, when piston is relative with upper base plate occurred level to slide, ε shaped steel damping elements are horizontally and vertically and deform, installing hole on ε shaped steel damping element pin also can deform in the deformation process of ε shaped steel damping elements, it is impossible to ensure the structural stability that ε shaped steel damping element is connected with bearing.
In sum, the shortcoming of the bearing with damping energy dissipation device is in prior art：
First, damping energy dissipation device is mounted on bearing, take up room big, damping energy dissipation device is not strong with the attachment structure stability of bearing.It two, damping energy dissipation device is connected with the upper and lower structure directly with bearing, it is complicated in the deformation process for subtracting the damping energy dissipation device in energy dissipation, it is inconsistent with the direction that bearing level is slided, the structural compactness being connected with bearing is not high, damping energy dissipation device has damping energy dissipation efficiency under bearing normal operating condition reduces the risk of even failure, and reliability is not high.
The content of the invention
The present invention is for damping energy dissipation device space occupancy rate in prior art is big, the seat structure stability not not high technical problem of strong and damping energy dissipation device reliability, there is provided a kind of friction pendulum earthquake isolating equipment, braking energy dissipating component is installed on friction pendulum shock isolating pedestal, the space occupancy rate of braking energy dissipating component is low, compact conformation is stable, subtract shock insulation mechanism simply can effectively limit the horizontal slide displacement of friction pendulum shock isolating pedestal, prevents bridge from falling the generation of beam phenomenon.
It is to reach above-mentioned purpose the technical solution used in the present invention：Friction pendulum earthquake isolating equipment, including friction pendulum shock isolating pedestal and braking energy dissipating component, friction pendulum shock isolating pedestal includes seat board, lower seat board and base plate in upper base plate, the double spheres being sequentially stacked from top to bottom, seat board forms respectively slip sphere friction pair and rotation spherical friction pair between upper base plate and lower seat board in double spheres, it is lower that planar slide friction pair is formed between seat board and base plate, the chute arranged along friction pendulum shock isolating pedestal fore-and-aft direction is provided with the end face center of described base plate, lower seat board bottom surface has the guide rail coordinated with chute sliding；
It is characterized in that described braking energy dissipating component includes that braking gear is moved and elastoplasticity energy dissipation piece, the left and right sides of seat board is parallel with chute under symmetrical being arranged on of elastoplasticity energy dissipation piece described in two, elastoplasticity energy dissipation piece is affixed along the centre position in chute direction with base plate, described brake baffle is arranged on the outside of lower seat board and is fixed between the elastoplasticity energy dissipation piece described in two, and described brake baffle is placed on base plate with chute sliding cooperation；
Lower seat board promotes brake baffle to produce the pulling force along chute direction to elastoplasticity energy dissipation piece along slide along slide.
Preferably, described plate upper surface has the otic placode for being symmetrically distributed in chute left and right sides, described otic placode is located on base plate left and right horizontal center line, by two blocks of elastoplasticity energy dissipating plates, along chute direction, alignment is constituted described elastoplasticity energy dissipation piece, one end of described elastoplasticity energy dissipating plate is affixed with otic placode and attachment force more than elastoplasticity energy dissipating plate the largest of about beam force, both sides are equipped with brake baffle before and after described upper base plate, it is symmetrical arranged before and after brake baffle described in two, the other end of described elastoplasticity energy dissipating plate is fixed with brake baffle, when elastoplasticity energy dissipating plate is plastically deformed, its own the largest of about beam force for producing, the connection of ring elastoplasticity energy dissipating plate and base plate will not be broken, elastoplasticity energy dissipating plate with base plate keeps affixed state all the time in the plastic state.
Preferably, described brake baffle has connection otic placode for two ends, described connection otic placode is affixed with elastoplasticity energy dissipating plate end and attachment force more than elastoplasticity energy dissipating plate the largest of about beam force, when elastoplasticity energy dissipating plate is plastically deformed, its own the largest of about beam force for producing, the connection of ring elastoplasticity energy dissipating plate and the dynamic plate of braking shelves will not be broken, braking gear moves the integral level slip to friction pendulum shock isolating pedestal affixed with elastoplasticity energy dissipating plate all the time under the mecystasis of elastoplasticity energy dissipating plate and limits.
Preferably, described lower seat board along the length of side in chute direction, two brake baffles along the length of side in chute direction and the plastic deformation maximum displacement sum of two elastoplasticity energy dissipating plates less than chute length, ensure when elastoplasticity energy dissipating plate occurs maximum plastic deformation, brake baffle still keeps sliding to coordinate with chute, and the level for limiting lower seat board is slided.
Preferably, described elastoplasticity energy dissipating plate is more than the maximum horizontal load of described friction pendulum shock isolating pedestal for the elastic-plastic damping steel plate and intensity of big at both ends and small in middle, it is ensured that elastoplasticity energy dissipating plate will not be surrendered under friction pendulum shock isolating pedestal normal operating condition.
Preferably, described brake baffle is fitted or is spaced with the side of described lower seat board, maximum horizontal load of the intensity of described brake baffle more than described friction pendulum shock isolating pedestal, it is ensured that brake baffle will not be surrendered under friction pendulum shock insulation normal operating condition.
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, it is ensured that base plate and elastoplasticity energy dissipating plate and the dynamic bonding strength with elastoplasticity energy dissipating plate of braking gear.
The present invention'sThe operation principle of friction pendulum earthquake isolating equipment is：In normal state, the institute that the friction pendulum earthquake isolating equipment of the present invention provides friction pendulum shock isolating pedestal is functional, elastoplasticity energy dissipation piece is in elastic stage, the horizontal load of friction pendulum shock isolating pedestal can be born, restraining force will not be produced to the relative slip between lower seat board and base plate, the dynamic level without limitation on friction pendulum shock isolating pedestal of braking gear is slided；Under earthquake state, when the horizontal load that friction pendulum shock isolating pedestal is subject to is more than the maximum horizontal load under its normal condition, brake baffle is operated state, elastoplasticity energy dissipation piece is pulled to enter mecystasis, by plastic history earthquake energy, elastoplasticity energy dissipation piece produces restraining force by plastic deformation, and the level for limiting friction pendulum shock isolating pedestal jointly with brake baffle is slided, subtract shock insulation mechanism so as to start friction pendulum shock isolating pedestal immediately, prevent bridge from falling beam.
The invention has the beneficial effects as follows：Energy dissipating component is braked in the friction pendulum earthquake isolating equipment of the present invention includes that braking keeps off dynamic and elastoplasticity energy dissipation piece, elastoplasticity energy dissipation piece is arranged on the left and right sides of lower seat board and fixes with base plate, brake baffle is placed on base plate with chute sliding cooperation, braking energy dissipating component is arranged on base plate, its space occupancy rate is low, brake baffle is fixed between two elastoplasticity energy dissipation pieces, lower seat board slides relative to the level of base plate and produce thrust to brake baffle, brake baffle produces pulling force along slide to elastoplasticity energy dissipation piece, the deformation direction of elastoplasticity energy dissipation piece is consistent with the horizontal glide direction of friction pendulum shock isolating pedestal, compact conformation of the friction pendulum earthquake isolating equipment during shock insulation is subtracted is stablized.The level that friction pendulum shock isolating pedestal is limited by braking energy dissipating component is slided, and the plastic deformation earthquake energy of elastoplasticity energy dissipation piece subtracts shock insulation mechanism simple.In normal state, with the repertoire of conventional friction pendulum-type shock isolating pedestal, under earthquake state, can immediately play and subtract shock insulation mechanism, the level for limiting friction pendulum shock isolating pedestal is slided, prevent bridge from falling the generation of beam phenomenon.
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.
Specific 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, friction pendulum shock isolating pedestal includes the upper base plate 31 being sequentially stacked from top to bottom, seat board 32 in double spheres, lower seat board 33 and base plate 34, seat board 32 forms respectively slip sphere friction pair and rotation spherical friction pair between upper base plate 31 and lower seat board 33 in double spheres, planar slide friction pair is formed between lower seat board 33 and base plate 34, the chute 35 arranged along friction pendulum shock isolating pedestal fore-and-aft direction is provided with the end face center of described base plate 34, the lower bottom surface of seat board 33 has the guide rail coordinated with the sliding of chute 35；
Described braking energy dissipating component includes braking gear dynamic 1 and elastoplasticity energy dissipation piece 2, the left and right sides of seat board 33 is parallel with chute 35 under symmetrical being arranged on of elastoplasticity energy dissipation piece 2 described in two, the described upper surface of base plate 34 has the otic placode 34.1 for being symmetrically distributed in the left and right sides of chute 35, described otic placode 34.1 is located on the left and right horizontal center line of base plate 34, by two blocks of elastoplasticity energy dissipating plates 2.1, along the direction of chute 35, alignment is constituted described elastoplasticity energy dissipation piece 1, one end of described elastoplasticity energy dissipating plate 2.1 is affixed with otic placode 34.1, the largest of about beam force of the attachment force more than elastoplasticity energy dissipating plate 2, ensure when elastoplasticity energy dissipating plate 2.1 is plastically deformed, its own the largest of about beam force for producing, the connection of ring elastoplasticity energy dissipating plate 2.1 and base plate 34 will not be broken.Both sides are equipped with brake baffle 1 before and after described upper base plate 33, it is symmetrical arranged before and after brake baffle 1 described in two, described brake baffle 1 has a connection otic placode 11 for two ends, described connection otic placode 11 is affixed with elastoplasticity energy dissipating 2.1 other ends of plate and attachment force more than elastoplasticity energy dissipating plate 2.1 the largest of about beam force.Ensure when elastoplasticity energy dissipating plate 2.1 is plastically deformed, the largest of about beam force of its own generation, will not break the connection of ring elastoplasticity energy dissipating plate 2.1 and the dynamic plate 1 of braking shelves, described brake baffle 1 is placed on base plate 34 with the sliding of chute 35 cooperation.Lower seat board 33 slides along chute 35 and promotes brake baffle 1 to slide along chute 35 pulling force that produces to elastoplasticity energy dissipation piece 2 along the direction of chute 35.Maximum horizontal load of the intensity of described brake baffle 1 more than described friction pendulum shock isolating pedestal, it is ensured that brake baffle 1 will not be surrendered under friction pendulum shock insulation normal operating condition.
Described lower seat board 33 along the length of side in the direction of chute 35, two brake baffles 1 along the length of side in the direction of chute 35 and the plastic deformation maximum displacement sum of two elastoplasticity energy dissipating plates 2.1 less than chute 35 length, ensure when elastoplasticity energy dissipating plate 21 occurs maximum plastic deformation, brake baffle 1 still keeps sliding to coordinate with chute 35, and the level for limiting lower seat board is slided.Described elastoplasticity energy dissipating plate 2.1 is more than the maximum horizontal load of described friction pendulum shock isolating pedestal for the elastic-plastic damping steel plate and intensity of big at both ends and small in middle, it is ensured that elastoplasticity energy dissipating plate 2.1 will not be surrendered under friction pendulum shock isolating pedestal use state.To ensure that base plate 34 moves the bonding strength of 1 and elastoplasticity energy dissipating plate 2.1 with elastoplasticity energy dissipating plate 2.1 and braking gear, otic placode 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 connected with the end of elastoplasticity energy dissipating plate 2.1 by the shearing bolt of four rectangular arrangeds.
In above-described friction pendulum earthquake isolating equipment, brake baffle 1 can form interval between the side of lower seat board 33, this interval can meet friction pendulum shock isolating pedestal under normal operating condition, and level when friction pendulum shock isolating pedestal bears normal level load is slided；Brake baffle 1 can also fit with the side of lower seat board 33, elastoplasticity energy dissipating plate 2.1 can bear the horizontal load of friction pendulum shock isolating pedestal, in normal state, elastoplasticity energy dissipating plate 2.1 is in elastic stage, and the level of friction pendulum shock isolating pedestal will not be slided into row constraint.When elastoplasticity energy dissipating plate 2.1 is designed, meet the horizontal force requirement of friction pendulum shock isolating pedestal, specifically refer to, the maximum horizontal load of friction pendulum shock isolating pedestal under the pulling force that elastoplasticity energy dissipating plate 2.1 bears is less than normal condition, elastoplasticity energy dissipating plate 2.1 is in elastic stage, and the level slip to friction pendulum shock isolating pedestal does not produce constraint.The maximum horizontal load of friction pendulum shock isolating pedestal under the pulling force that elastoplasticity energy dissipating plate 2.1 bears is more than normal condition, elastoplasticity energy dissipating plate 2.1 is in mecystasis, there is the level slip kinetic energy that plastic degeneration consumes friction pendulum shock isolating pedestal, the level for limiting friction pendulum shock isolating pedestal is slided.
The aboveFriction pendulum earthquake isolating equipment, in normal state, the institute that friction pendulum earthquake isolating equipment provides friction pendulum shock isolating pedestal is functional, elastoplasticity energy dissipation piece 2 is in elastic stage, the horizontal load of friction pendulum shock isolating pedestal can be born, restraining force will not be produced to the relative slip between lower seat board 33 and base plate 34, braking gear dynamic 1 slides without limitation on the level of friction pendulum shock isolating pedestal；Under earthquake state, when the horizontal load that friction pendulum shock isolating pedestal is subject to is more than the maximum horizontal load under its normal condition, brake baffle 1 is operated state, elastoplasticity energy dissipation piece 2 is pulled to enter mecystasis, by plastic history earthquake energy, elastoplasticity energy dissipation piece 2 produces restraining force by plastic deformation, and the level for limiting friction pendulum shock isolating pedestal jointly with brake baffle 1 is slided, subtract shock insulation mechanism so as to start friction pendulum shock isolating pedestal immediately, prevent bridge from falling beam.
Energy dissipating component is braked in above-mentioned friction pendulum earthquake isolating equipment includes braking gear dynamic 1 and elastoplasticity energy dissipation piece 2, elastoplasticity energy dissipation piece 2 is arranged on the left and right sides of lower seat board 33 and fixes with base plate 34, brake baffle 1 is slided 35 shifting cooperations and is placed on base plate 34 with chute, braking energy dissipating component is arranged on the bottom sheet 34, its space occupancy rate is low, brake baffle 1 is fixed between two elastoplasticity energy dissipation pieces 2, lower seat board 33 slides relative to the level of base plate 34 and produce thrust to brake baffle 1, brake baffle 1 produces pulling force along slide to elastoplasticity energy dissipation piece 2, the deformation direction of elastoplasticity energy dissipation piece 2 is consistent with the horizontal glide direction of friction pendulum shock isolating pedestal, compact conformation of the friction pendulum earthquake isolating equipment during shock insulation is subtracted is stablized.The level that friction pendulum shock isolating pedestal is limited by braking energy dissipating component is slided, and the plastic deformation earthquake energy of elastoplasticity energy dissipation piece 2 subtracts shock insulation mechanism simple.In normal state, with the repertoire of conventional friction pendulum-type shock isolating pedestal, under earthquake state, can immediately play and subtract shock insulation mechanism, the level for limiting friction pendulum shock isolating pedestal is slided, prevent bridge from falling the generation of beam phenomenon.
The technical scheme of embodiments of the invention is completely described above in association with accompanying drawing, it should be noted that described embodiment is only a part of embodiment of the present invention.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art are obtained on the premise of creative work is not made belongs to the scope of protection of the invention.For example, one block of elastoplasticity energy dissipating plate 2.1 can only be connected on otic placode 34.1, and before and after lower seat board 33 in the only side of side arrange brake baffle 1, one end of elastoplasticity energy dissipating plate 2.1 is connected with otic placode 34.1, the other end is connected with brake baffle 1, two friction pendulum shock isolating pedestals are fitted in the side for being not provided with brake baffle 1 when using, the base plate 34 described in two is fitted, two alignment connections of chute 35.Under earthquake state, the level slip of two friction pendulum shock isolating pedestals both sides before and after of laminating is limited fixed.It should be noted that the braking energy dissipating component in the present invention not only can be mounted on friction pendulum shock isolating pedestal, it is also possible to be mounted on spherical bearing or pot bearing and limit the level slip of 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 includes the upper base plate being sequentially stacked from top to bottom（31）, seat board in double spheres（32）, lower seat board（33）And base plate（34）, seat board in double spheres（32）Respectively with upper base plate（31）With lower seat board（33）Between form slip sphere friction pair and rotation spherical friction pair, lower seat board（33）With base plate（34）Between formed planar slide friction pair, described base plate（34）End face center at be provided with along friction pendulum shock isolating pedestal fore-and-aft direction arrange chute（35）, lower seat board（33）Bottom surface has and chute（35）The guide rail that sliding coordinates；
It is characterized in that described braking energy dissipating component includes that braking gear is dynamic（1）With elastoplasticity energy dissipation piece（2）, the elastoplasticity energy dissipation piece described in two（2）Seat board under symmetrical being arranged on（33）Left and right sides and chute（35）It is parallel, elastoplasticity energy dissipation piece（2）With base 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 be fixed on the elastoplasticity energy dissipation piece described in two（2）Between, described brake baffle（1）With chute（35）Sliding cooperation is placed in base 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）Produce along chute（35）The pulling force in direction.
2. friction pendulum earthquake isolating equipment according to claim 1, it is characterised in that described base plate（34）Upper surface have be symmetrically distributed in chute（35）The otic placode of left and right sides（34.1）, described otic placode（34.1）Positioned at base plate（34）On left and right horizontal center line, described elastoplasticity energy dissipation piece（1）By two blocks of elastoplasticity energy dissipating plates（2.1）Along chute（35）Direction alignment composition, 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（33）Before and after both sides be equipped with brake baffle（1）, the brake baffle described in two（1）It is symmetrical arranged in front and back, 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）There is connection otic placode for two ends（11）, described connection otic placode（11）With elastoplasticity energy dissipating plate（2.1）End is affixed and attachment force is more than elastoplasticity 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）Plastic 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）Elastic-plastic damping steel plate and intensity for big at both ends and small in middle is 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 described lower seat board（33）Side laminating or be spaced, described brake baffle（1）Intensity 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）The end shearing bolt connection that passes through four rectangular arrangeds, described connection otic placode（11）With elastoplasticity energy dissipating plate（2.1）The end shearing bolt connection that passes through four rectangular arrangeds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510724526.9A CN106638281B (en) | 2015-11-02 | 2015-11-02 | Friction pendulum earthquake isolating equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510724526.9A CN106638281B (en) | 2015-11-02 | 2015-11-02 | Friction pendulum earthquake isolating equipment |
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| Publication Number | Publication Date |
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| CN106638281A true CN106638281A (en) | 2017-05-10 |
| CN106638281B CN106638281B (en) | 2018-03-09 |
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Cited By (8)
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| CN107268431A (en) * | 2017-08-17 | 2017-10-20 | 四川大学 | Self-resetting frictional damping shock mount and damping bridge |
| CN107780444A (en) * | 2017-09-19 | 2018-03-09 | 昆明理工大学 | A kind of band recovers the seismic isolation and reduction structure and its design method of function |
| CN108708272A (en) * | 2018-08-14 | 2018-10-26 | 山西路桥建设集团有限公司 | Bridge girder anti-seismic bearing |
| CN110205925A (en) * | 2019-05-10 | 2019-09-06 | 浙江秦山橡胶工程股份有限公司 | A kind of Bidirectional mobile pot rubber bearing |
| CN110453789A (en) * | 2019-08-20 | 2019-11-15 | 四川省建筑科学研究院有限公司 | Self-resetting shock isolating pedestal and earthquake isolating equipment |
| CN111236462A (en) * | 2020-03-02 | 2020-06-05 | 宁波东衡工程科技发展有限公司 | Friction pendulum with low starting force and variable friction coefficient |
| CN111287533A (en) * | 2020-02-13 | 2020-06-16 | 震安科技股份有限公司 | Friction pendulum support convenient to install and replace and replacement method |
| CN112160235A (en) * | 2020-09-27 | 2021-01-01 | 湖南省潇振工程科技有限公司 | Eddy current damping steel support for bridge |
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Cited By (11)
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| CN107268431A (en) * | 2017-08-17 | 2017-10-20 | 四川大学 | Self-resetting frictional damping shock mount and damping bridge |
| US10174467B1 (en) | 2017-08-17 | 2019-01-08 | Sichuan University | Self-resetting friction-damping shock absorption bearing and shock absorption bridge |
| CN107780444A (en) * | 2017-09-19 | 2018-03-09 | 昆明理工大学 | A kind of band recovers the seismic isolation and reduction structure and its design method of function |
| CN108708272A (en) * | 2018-08-14 | 2018-10-26 | 山西路桥建设集团有限公司 | Bridge girder anti-seismic bearing |
| CN110205925A (en) * | 2019-05-10 | 2019-09-06 | 浙江秦山橡胶工程股份有限公司 | A kind of Bidirectional mobile pot rubber bearing |
| CN110205925B (en) * | 2019-05-10 | 2024-03-26 | 浙江秦山橡胶工程股份有限公司 | Bidirectional movable basin-type rubber support |
| CN110453789A (en) * | 2019-08-20 | 2019-11-15 | 四川省建筑科学研究院有限公司 | Self-resetting shock isolating pedestal and earthquake isolating equipment |
| CN110453789B (en) * | 2019-08-20 | 2024-06-04 | 四川省建筑科学研究院有限公司 | Self-resetting shock insulation support and shock insulation device |
| CN111287533A (en) * | 2020-02-13 | 2020-06-16 | 震安科技股份有限公司 | Friction pendulum support convenient to install and replace and replacement method |
| CN111236462A (en) * | 2020-03-02 | 2020-06-05 | 宁波东衡工程科技发展有限公司 | Friction pendulum with low starting force and variable friction coefficient |
| CN112160235A (en) * | 2020-09-27 | 2021-01-01 | 湖南省潇振工程科技有限公司 | Eddy current damping steel support for bridge |
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