CN206396907U - Marmem variation rigidity mutative damp position limitation protection shock isolating pedestal - Google Patents

Marmem variation rigidity mutative damp position limitation protection shock isolating pedestal Download PDF

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CN206396907U
CN206396907U CN201720009060.9U CN201720009060U CN206396907U CN 206396907 U CN206396907 U CN 206396907U CN 201720009060 U CN201720009060 U CN 201720009060U CN 206396907 U CN206396907 U CN 206396907U
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plate
marmem
isolating pedestal
damper
shock isolating
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李俊山
郭建明
梁宇
范利鹏
崔志月
杨宝生
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杨宝生
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Abstract

The utility model is related to a kind of marmem variation rigidity mutative damp position limitation protection shock isolating pedestal; belong to Civil Structrual Isolation, energy-dissipating and shock-absorbing field; including upper junction plate, middle connecting plate, lower connecting plate, laminated rubber bases and vertical earthquake isolating equipment; SMA Tendons are symmetricly set in laminated rubber bases front and rear sides, and lower connecting plate upper surface two ends are respectively arranged with a pulley;SMA Tendons one end is fixed on upper junction plate one end, the other end successively it is oblique bypass two pulleys after be connected with the other end of upper junction plate so that SMA Tendons arranged crosswise is into falling font " again ";It is provided with lower connecting plate on the SMA Tendons between a pair of postive stop baffles, postive stop baffle and is fixedly installed a sliding block;A spring is provided with postive stop baffle.The utility model effectively can protect bearing not occur unstability, while also effectively increasing the tension resistance to plucking and resistance to capsizing of bearing.

Description

Marmem variation rigidity mutative damp position limitation protection shock isolating pedestal
Technical field
The utility model is related to a kind of building shock isolating pedestal, particularly a kind of to have horizontal vertical earthquake isolating, energy-dissipating and shock-absorbing And the marmem variation rigidity mutative damp position limitation protection shock isolating pedestal of variation rigidity mutative damp position limitation protection characteristic, belong to work Journey structures isolation effect, energy-dissipating and shock-absorbing field.
Background technology
Shock isolating pedestal is that a kind of shock insulation that subtracts for building structure bottom developed in the last few years (shakes) technology, is characterized in Effectively cut-off horizontal earthquake action power be transferred to superstructure through basis, with this reduce superstructure horizontal vibration thus it is effective Protect superstructure.At present Civil Structrual Isolation art is more ripe, widely used shock insulation original paper is common Laminated rubber bases and lead rubber bearing.Although existing laminated rubber bases have higher vertical bearing capacity, water Put down to shearing variation rigidity and the advantages of good endurance, but there is also some shortcomings, particularly meet with shake strongly when, structure Reaction can be significantly increased, especially when seismic energy concentrates on low-frequency range, and the reaction of structure can be bigger.Now, due to every The ratio of rigidity superstructure interlayer rigidity for shaking the Seismic Isolation of Isolation Layer of bearing is small 100 times, even more small, deformation main will be concentrated in every Shake layer.Due to economic considerations, the diameter of shock isolating pedestal can not be usable too big, and its horizontal displacement is possible to exceed it Deformation limit, so as to cause unstable phenomenon.It is existing《Seismic design provision in building code》In to prevent rubber support larger Under horizontal shear deformation, cut and press load-bearing effective area too small and lose bearing capacity or regional area generation tensile failure, Define effective diameter and 300% smaller value that the deformation of bearing horizontal shear not should be greater than 0.55 times of rubber support.It is existing in addition There is the tensile strength of normal stack rubber support and lead rubber bearing relatively low, the 10% of not enough compression strength, thus it is existing 《Seismic design provision in building code》In be proposed with the base isolation structure depth-width ratios of laminated rubber bases and be not preferably greater than 4, prevent side Tensile failure occurs for edge bearing.The above-mentioned deficiency of normal stack rubber support becomes its master in Civil Structrual Isolation application Want obstacle.
In addition, more just work has been carried out in research of the domestic and foreign scholars to horizontal seismic isolation, and the research to vertical earthquake isolating is related to And it is less.It is generally believed that horizontal earthquake is to its control action of structural damage, still, a large amount of earthquake disasters show, vertical seismic action What the influence to works can not sometimes be ignored, its effect exceedes horizontal earthquake action sometimes, especially for some The region of highlight lines or Damage Epicenter, its vertical seismic element clearly, sometimes up to more than the 2/3 of horizontal seismic element.
Marmem (Shape Memory Alloy, SMA) hyperelastic fatigue behaviour of material phase transformation is fine, commonly Material is then typically all inevitably damaged in loading and unloading circulation, influences the life-span;Under normal temperature state, shape note The recoverable strain of alloy material is recalled up to 6%~8%, and ultimate tensile strength is up to more than 14%;Due to marmem material Expect that the rigidity of austenitic state is more than the rigidity of martensitic state, SMA modulus of elasticity will increase (general with the rise of temperature Logical metal material is just the opposite), this can make material still keep high elastic modulus at a higher temperature.
The laminated rubber bases for being currently based on marmem are primarily present following deficiency:1. marmem is in branch Seat periphery diagonal cross arrangement, increases early stage initial stiffness and the damping of bearing, limits the horizontal distortion of bearing, add The earthquake response of superstructure during earthquake, has slackened the isolating affection of original shock isolating pedestal;2. the shape memory on bearing periphery is closed Spun gold or tow can not provide effective vertical stretching resistance for bearing;3. the existing normal stack rubber based on marmem Glue bearing does not have corresponding shock insulation and energy dissipation capacity for vertical seismic action.
Therefore, laminated rubber bases can be given full play in shock isolating pedestal horizontal shear deformation range by being badly in need of exploitation one kind The horizontal deformation of itself, at the same can occur to play during greater level deformation in shock isolating pedestal again spacing and protective effect every Shake bearing, to prevent shock isolating pedestal occurred level unstability, acted on while providing certain earthquake isolation to vertical seismic action, and to every Shake bearing horizontally and vertically provides certain rigidity and damping.
Utility model content
In order to overcome the drawbacks described above of prior art, the utility model provides a kind of marmem variation rigidity variable resistance Buddhist nun's position limitation protection shock isolating pedestal, the protection of large deformation unstability and vertical earthquake isolating and bearing resistance to plucking to solve prior art presence Problem.
The technical solution of the utility model is as follows:
Marmem variation rigidity mutative damp position limitation protection shock isolating pedestal, including upper junction plate, middle connecting plate, lower connection Plate, is provided with laminated rubber bases between middle connecting plate and lower connecting plate, be provided between upper junction plate and middle connecting plate vertical Earthquake isolating equipment, SMA Tendons are symmetricly set in laminated rubber bases front and rear sides, the lower connecting plate upper surface two End is respectively arranged with a pulley;The SMA Tendons per side, its one end is fixed on upper junction plate one end, the other end Successively it is oblique bypass two pulleys after be connected with the other end of upper junction plate so that SMA Tendons arranged crosswise into fall " again " font;The shape between a pair of postive stop baffles, two pulleys is provided with lower connecting plate between two pulleys The marmem that shape memory alloys drag-line is each passed through between the aperture on the postive stop baffle, and the postive stop baffle is drawn A sliding block is fixedly installed on rope;The relative inner side of this pair of postive stop baffle is fixedly installed a spring.
Further, the SMA Tendons are shape memory alloy twisted wire or shape-memory alloy wire beam.
Further, the vertical earthquake isolating equipment is made up of sleeve, disk spring and damper, the sleeve and resistance Buddhist nun's device is fixedly installed on middle connecting plate, and the damper is in the middle of sleeve, and the upper junction plate bottom is goed deep into and slided to set It is placed in the sleeve, the damper is slideably positioned in the groove of the upper junction plate bottom, the piston of the damper It is connected with upper junction plate at the top of bar, the disk spring is slidably located on damper and is arranged at sleeve and upper junction plate bottom In the space that portion is surrounded.
Further, the damper viscous damper or MR damper.
Further, the laminated rubber bases are to be formed by stacking by one layer of steel plate, one layer of rubber.
Further, the laminated rubber bases are internally provided with lead for retractable pencil.
Further, the postive stop baffle is L-type angle steel.
Further, the sliding block is block rubber or lead.
Further, the distance of the sliding block to spring is less than the effective diameter of 0.55 times of laminated rubber bases.
Following beneficial effect is achieved using marmem position limitation protection shock isolating pedestal of the present utility model:
Marmem position limitation protection shock isolating pedestal of the present utility model, when not vibrating, sliding block is in centre Position, when occurring medium and small shake, bearing, which is moved horizontally, drives the sliding block in SMA Tendons to horizontally slip, not with left and right Postive stop baffle or spring are collided, now, and laminated rubber bases are not influenceed by SMA Tendons rigidity and damping, I.e. SMA Tendons are not had an effect, laminated rubber bases can Free Transform play function of shock insulation;And when bearing is met with Big shake, when bearing horizontal displacement is larger, sliding block comes in contact with spring first, compression spring, and if deform further increase, The movement of sliding block is stopped that now SMA Tendons are stretched by left and right postive stop baffle, further limitation bearing level The further increase of displacement, it is therefore prevented that unstability occurs for bearing, while the seismic energy that dissipated, certain change is provided for bearing Rigidity and damping;Meanwhile, in the presence of vertical seismic action, the above-mentioned vertical earthquake isolating equipment of shock isolating pedestal can effectively mitigate perpendicular To geological process, while dissipation seismic energy, and laminated rubber bases both sides SMA Tendons can up-down stretch, Effectively limitation laminated rubber bases vertical deformation, while dissipation seismic energy, effectively raises the tension resistance to plucking of shock isolating pedestal And resistance to capsizing.
Marmem position limitation protection shock isolating pedestal of the present utility model can give full play to laminated rubber bases itself Horizontal deformation, in small earthquakes, SMA Tendons are not involved in work, while can occur in shock isolating pedestal again Greater level plays spacing and protective effect when deforming, and rigidity and the resistance for providing certain change are deformed for the bearing later stage Buddhist nun, while also effectively increasing the tension resistance to plucking and resistance to capsizing of shock isolating pedestal.
Brief description of the drawings
Fig. 1 is that the utility model deforms pre-structure schematic diagram;
Fig. 2 is structural representation after the utility model deformation;
In figure, 1- upper junction plates;2- sleeves;Connecting plate in 3-;4- SMA Tendons;5- lower connecting plates;6- is folded Layer rubber support;7- pulleys;8- dampers;9- disk springs;10- postive stop baffles;11- springs;12- sliding blocks.
Embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings.
As shown in Figure 1-2, a kind of marmem variation rigidity mutative damp position limitation protection shock isolating pedestal of the present utility model, Including upper junction plate 1, middle connecting plate 3, lower connecting plate 5, laminated rubber bases are provided between middle connecting plate 3 and lower connecting plate 5 6, laminated rubber bases 6 are internally provided with lead for retractable pencil to be formed by stacking by one layer of steel plate, one layer of rubber.Upper junction plate 1 and middle connection Vertical earthquake isolating equipment is provided between plate 3, SMA Tendons 4 are symmetricly set in the front and rear sides of laminated rubber bases 6, should SMA Tendons 4 are shape memory alloy twisted wire.The upper surface two ends of lower connecting plate 5 are respectively arranged with a pulley 7;Per side SMA Tendons 4, its one end is fixed on the one end of upper junction plate 1, the other end successively it is oblique bypass after two pulleys 7 with The other end connection of upper junction plate 1, so that the arranged crosswise of SMA Tendons 4 is into falling font " again ";Two pulleys 7 Between lower connecting plate 5 on the SMA Tendons 4 that are provided between a pair of postive stop baffles 10, two pulleys 7 wear respectively A cunning is fixedly installed on the aperture crossed on the postive stop baffle 10, and SMA Tendons 4 between postive stop baffle 10 Block 12;The relative inner side of this pair of postive stop baffle 10 is fixedly installed a spring 11.Vertical earthquake isolating equipment is by sleeve 2, dish-shaped bullet Spring 9 and viscous damper 8 are constituted, and sleeve 2 and damper 8 are fixedly installed on middle connecting plate 3, and damper 8 is located at sleeve 2 Centre, the bottom of upper junction plate 1 is goed deep into and is slideably positioned in the sleeve 2, and damper 8 is slideably positioned in the bottom of upper junction plate 1 Groove in, the piston rod part of damper 8 is connected with upper junction plate 1, and disk spring 9 is slidably located on damper 8 and set It is placed in the space that sleeve 2 and the bottom of upper junction plate 1 are surrounded.Wherein, postive stop baffle 10 is L-type angle steel, and sliding block 12 is rubber Block or lead, meanwhile, the distance of sliding block 12 to spring 11 is the effective diameter of 0.5 times of laminated rubber bases 6.
Marmem variation rigidity mutative damp position limitation protection shock isolating pedestal of the present utility model, as shown in figure 1, not sending out During raw vibration, sliding block 12 is in an intermediate position, when occurring medium and small shake, and bearing moves horizontally drive SMA Tendons 4 In sliding block 12 horizontally slip, do not collided with left and right postive stop baffle 10 or spring 11, now, laminated rubber bases 6 not by SMA Tendons rigidity and the influence of damping, i.e. SMA Tendons 4 are not had an effect, it is allowed to laminated rubber branch 6 Free Transforms of seat.When bearing meets with big shake, when bearing horizontal displacement is larger, as shown in Fig. 2 sliding block 12 is sent out with spring 11 first Raw contact, compression spring is deformed there is provided additional stiffness, limitation laminated rubber bases 6.And if deformation further increase, sliding block 12 movement is hindered SMA Tendons 4 to move by the stop of left and right postive stop baffle 10, and now marmem is drawn Rope 4 stretches the further increase there is provided additional rigidity and the further limitation bearing horizontal displacement of damping, it is therefore prevented that bearing is sent out Raw unstability, while the seismic energy that dissipated.Meanwhile, in the presence of vertical seismic action, the vertical earthquake isolating equipment energy on shock isolating pedestal It is enough effectively to mitigate Vertical Earthquake Loads, dissipation seismic energy, and the SMA Tendons 4 of laminated rubber bases both sides can Up-down stretch, the effectively limitation vertical deformation of laminated rubber bases 6, while dissipation seismic energy, plays tension resistance to plucking and resist and incline The effect covered.
When being arranged using marmem variation rigidity mutative damp position limitation protection shock isolating pedestal of the present utility model, its shock insulation Layer can arrange the marmem position limitation protection shock isolating pedestal of different directions, the SMA Tendons of such as two bearings 4 can be arranged vertically, make its meet level two to and vertical earthquake isolating requirement.
Above-described embodiment is intended merely to become apparent to illustrate that what the technical solution of the utility model made enumerates, not to this reality With new restriction, protection domain of the present utility model is still defined by scope defined in the appended claims.

Claims (9)

1. marmem variation rigidity mutative damp position limitation protection shock isolating pedestal, including upper junction plate (1), middle connecting plate (3), under Connecting plate (5), is provided with laminated rubber bases (6), upper junction plate (1) and middle company between middle connecting plate (3) and lower connecting plate (5) Vertical earthquake isolating equipment is provided between fishplate bar (3), SMA Tendons (4) are symmetricly set in before laminated rubber bases (6) Both sides afterwards, it is characterised in that:Lower connecting plate (5) the upper surface two ends are respectively arranged with a pulley (7);The shape per side Memorial alloy drag-line (4), its one end is fixed on upper junction plate (1) one end, the other end successively it is oblique bypass two pulleys (7) afterwards with The other end connection of upper junction plate (1) so that SMA Tendons (4) arranged crosswise is into falling font " again ";Described in two The shape note between a pair of postive stop baffles (10), two pulleys (7) is provided with lower connecting plate (5) between pulley (7) Recall the shape note between the aperture that alloy drag-line (4) is each passed through on the postive stop baffle (10), and the postive stop baffle (10) Recall and a sliding block (12) is fixedly installed on alloy drag-line (4);This pair of relative inner side of postive stop baffle (10) is fixedly installed one Spring (11).
2. marmem variation rigidity mutative damp position limitation protection shock isolating pedestal according to claim 1, it is characterised in that: The SMA Tendons (4) are shape memory alloy twisted wire or shape-memory alloy wire beam.
3. marmem variation rigidity mutative damp position limitation protection shock isolating pedestal according to claim 1, it is characterised in that: The vertical earthquake isolating equipment is made up of sleeve (2), disk spring (9) and damper (8), the sleeve (2) and damper (8) it is fixedly installed on middle connecting plate (3), the damper (8) is located in the middle of sleeve (2), upper junction plate (1) bottom is deep Enter and be slideably positioned in the sleeve (2), the damper (8) is slideably positioned in the groove of the upper junction plate (1) bottom Interior, the piston rod part of the damper (8) is connected with upper junction plate (1), and the disk spring (9) is slidably located in damper (8) on and it is arranged in the space that sleeve (2) and upper junction plate (1) bottom are surrounded.
4. marmem variation rigidity mutative damp position limitation protection shock isolating pedestal according to claim 3, it is characterised in that: Damper (8) viscous damper or MR damper.
5. marmem variation rigidity mutative damp position limitation protection shock isolating pedestal according to claim 1, it is characterised in that: The laminated rubber bases (6) are to be formed by stacking by one layer of steel plate, one layer of rubber.
6. marmem variation rigidity mutative damp position limitation protection shock isolating pedestal according to claim 5, it is characterised in that: The laminated rubber bases (6) are internally provided with lead for retractable pencil.
7. marmem variation rigidity mutative damp position limitation protection shock isolating pedestal according to claim 1, it is characterised in that: The postive stop baffle (10) is L-type angle steel.
8. marmem variation rigidity mutative damp position limitation protection shock isolating pedestal according to claim 1, it is characterised in that: The sliding block (12) is block rubber or lead.
9. marmem variation rigidity mutative damp position limitation protection shock isolating pedestal according to claim 1, it is characterised in that: The sliding block (12) is less than the effective diameter of 0.55 times of laminated rubber bases (6) to the distance of spring (11).
CN201720009060.9U 2017-01-05 2017-01-05 Marmem variation rigidity mutative damp position limitation protection shock isolating pedestal Active CN206396907U (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107460967A (en) * 2017-09-20 2017-12-12 张晗 Rope pendulum-type Self-resetting anti-pulling shock isolating pedestal
CN108457514A (en) * 2018-02-13 2018-08-28 北京建筑大学 A kind of slide device for isolation structure
CN108661187A (en) * 2018-05-22 2018-10-16 河海大学 A kind of bearing and its working method of adaptive uneven settlement of foundation
CN109296104A (en) * 2018-11-21 2019-02-01 大连大学 Shape memory alloy twisted wire supports shock-dampening method
CN110965463A (en) * 2019-12-19 2020-04-07 安徽微威减震降噪技术研究院 Rubber shock insulation support

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107460967A (en) * 2017-09-20 2017-12-12 张晗 Rope pendulum-type Self-resetting anti-pulling shock isolating pedestal
CN108457514A (en) * 2018-02-13 2018-08-28 北京建筑大学 A kind of slide device for isolation structure
CN108661187A (en) * 2018-05-22 2018-10-16 河海大学 A kind of bearing and its working method of adaptive uneven settlement of foundation
CN108661187B (en) * 2018-05-22 2020-01-24 河海大学 Support for self-adaptive differential settlement of foundation and working method thereof
CN109296104A (en) * 2018-11-21 2019-02-01 大连大学 Shape memory alloy twisted wire supports shock-dampening method
CN110965463A (en) * 2019-12-19 2020-04-07 安徽微威减震降噪技术研究院 Rubber shock insulation support

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