CN205134537U - Isolation bearing stop device - Google Patents

Abstract

The utility model discloses an isolation bearing stop device is with under isolation bearing upper junction plate (3) and the isolation bearing connecting plate (4) and the firm connection of nemutogen for the buffer, hookup location does: connecting plate (4) each four corners that corresponds the side uses nemutogen (1) of length such as four to connect through buffer (2) diagonal angle under isolation bearing upper junction plate (3) and the isolation bearing, and buffer (2) lie in diagonal angle middle part position alternately. The buffer has the rigidity shell, and rigidity shell center is put into to four plush copper ends that have the rigidity member of arcuation plush copper, and the slotted hole that the rigidity shell is followed to the rigidity member extends the rigidity shell, has the plush copper outer fringe of vulcanie circle (2 -2) the liner of cushioning effect at the rigidity member. The utility model discloses the simple structure easily designs and makes, adopts the device's shock insulation structure, can control the displacement of isolation bearing under long period ground vibrations or megaseisms effect effectively.

Description

A kind of shock isolating pedestal stopping means

Technical field

The utility model belongs to Antiseismic building apparatus field, is specifically related to a kind of shock isolating pedestal stopping means.

Background technology

Seismic isolation technology, by arranging shock isolating pedestal at Seismic Isolation of Isolation Layer, the natural vibration period of extending structure, and then the predominant period avoiding earthquake motion, reduces the seismic response of superstructure, saving construction cost.Isolation structure, due to various advantages, is widelyd popularize, and up to the present, China is existing adopts seismic isolation technology more than 500 buildings.

The existing isolation structure design of China, does not consider the impact of Long-period Ground Motions.And in Japanese 311 violent earthquakes, be recorded to many Long-period Ground Motions, in Tokyo, some stations are even recorded to the earthquake motion that the predominant period is 7 seconds.The many isolation structures of Japan are compared with same place, synperiodic non-isolation structure, and external decoration is destroyed serious, and even elevator destroys, and cannot run.And in Japanese 311 violent earthquakes, how the earthquake ground motion acceleration amplitude be recorded to, even more than 2000gal, ensures the safety of isolation structure under Long-period Ground Motions and Giant Bullous effect, become a urgent and serious problem.

At " a kind of Seismic Isolation of Isolation Layer limiting and protecting device of structures with interlayer seismic isolation " of people's utility model such as Yan Guiyun of existing isolation structure stopping means Zhong You Fujian University of Technology.This device is that the structure base slab by being located at Seismic Isolation of Isolation Layer arranges static housing, a series of position-limiting units such as polished rod, high-damping rubber bed course, non-linear spring, postive stop baffle and support are set at box house, Seismic Isolation of Isolation Layer Bit andits control can be made preferably in allowed limits, but its operation when construction, assembling is more, cost is comparatively large, and the repair and replacement of each several part are inconvenient, shared Seismic Isolation of Isolation Layer space is larger.And the utility model have without the need to take the too much space of Seismic Isolation of Isolation Layer, installation and maintenance convenient, with shock isolating pedestal in advantages such as one, operation possibility are strong.

Utility model content

The purpose of this utility model be to provide a kind of stop shock isolating pedestal exceed design allow the device of maximum displacement.This device can provide very high horizontal pull when shock isolating pedestal displacement reaches the maximum displacement that design allows, thus prevents shock isolating pedestal from occurring to destroy and reduce superstructure response.

The technical solution of the utility model is as follows:

A kind of shock isolating pedestal stopping means, comprises nemutogen 1 and snubber 2 that high tensile makes.Shock isolating pedestal upper junction plate 3 is firmly connected with shock isolating pedestal lower connecting plate 4 and snubber nemutogen; Link position is: shock isolating pedestal upper junction plate 3 and the corner of each respective side of shock isolating pedestal lower connecting plate 4 use the nemutogen 1 of four equal lengths to be connected by snubber 2 diagonal angle, and snubber 2 is positioned at the medium position that diagonal angle intersects.

The nemutogen that described tensile strength is made higher than the material of 3400MP is high-carbon steel wire.

In reality is implemented, by four are separated in the corner of the upper and lower junction plate of shock isolating pedestal with snubber internal rigid rod member arranged outside earhole or other devices, described firmly connection is connected for tiing a knot with earhole in high-carbon steel wire end.

Described snubber has outer rigid housing, four plush copper ends with the rigid bar of arcuation plush copper insert outer rigid housing center, rigid bar extends outer rigid housing along the slotted eye of outer rigid housing, has the plush copper outer rim of vulcanie circle 2-2 liner at rigid bar of cushioning effect; Positioning rubber block is inserted in the space that four plush copper ends with the rigid bar of arcuation plush copper surround with fixing plush copper position.

The utility model not only can prevent shock isolating pedestal from destroying because there is excessive displacement under Long-period Ground Motions or megaseisms effect, can also reduce the relative storey displacement of superstructure under Long-period Ground Motions effect, and the utility model has without the need to the advantage such as take the too much space of Seismic Isolation of Isolation Layer, easy for installation, operation possibility is strong.

Accompanying drawing explanation

Fig. 1 is Perspective drawing of the present utility model;

Fig. 2 is the front projection figure after distortion of the present utility model;

Fig. 3 is the sectional drawing of snubber of the present utility model;

Fig. 4 is the fractionation Perspective drawing of snubber each several part of the present utility model;

Locus figure in Fig. 5 snubber after four internal-flange bolt rigid body installations be separated.

Fig. 6 is at the partial view of shock isolating pedestal lower connecting plate.

The schematic diagram of the protective layer of foil that upper and lower two surfaces of Fig. 7 snubber are installed.

Enforcement illustration after the flange of the outer rigid housing inner ring edge setting of Fig. 8 snubber.

Detailed description of the invention

The technical solution of the utility model is, between the upper and lower junction plate of shock isolating pedestal, diagonal angle adds 8 groups of 16 isometric high-carbon steel wires, and wherein every side adds 2 groups of 4 high-carbon steel wires, and 2 groups of high-carbon steel wires of every side are connected by a snubber.High-carbon steel wire horizontal projection length should be the maximum displacement length that isolation structure design is allowed, how the direction of motion regardless of shock isolating pedestal changes, and after shock isolating pedestal reaches certain displacement, this device all can produce position-limiting action.The reaction of isolation structure under seismic loading having added this device can represent with equation the following:

$\begin{array}{cc}\&lsqb;M\&rsqb;\left\{\stackrel{\&CenterDot;\&CenterDot;}{X}\right\}+\&lsqb;C\&rsqb;\left\{\stackrel{\&CenterDot;}{X}\right\}+\&lsqb;K\&rsqb;\left\{X\right\}=-\&lsqb;M\&rsqb;\left\{I\right\}{\stackrel{\&CenterDot;\&CenterDot;}{X}}_g& \left|x\right|<x_{max1}\end{array}$

$\begin{array}{cc}\&lsqb;M\&rsqb;\left\{\stackrel{\&CenterDot;\&CenterDot;}{X}\right\}+\&lsqb;C\&rsqb;\left\{\stackrel{\&CenterDot;}{X}\right\}+(\&lsqb;K\&rsqb;+\&lsqb;K_e\&rsqb;)\left\{X\right\}=-\&lsqb;M\&rsqb;\left\{I\right\}{\stackrel{\&CenterDot;\&CenterDot;}{X}}_g& x_{max1}\&le;\left|x\right|<x_{max1}+x_e\end{array}$

$\begin{array}{cc}\&lsqb;M\&rsqb;\left\{\stackrel{\&CenterDot;\&CenterDot;}{X}\right\}+\&lsqb;C\&rsqb;\left\{\stackrel{\&CenterDot;}{X}\right\}+(\&lsqb;K\&rsqb;+\&lsqb;K_f\&rsqb;)\left\{X\right\}=-\&lsqb;M\&rsqb;\left\{I\right\}{\stackrel{\&CenterDot;\&CenterDot;}{X}}_g& x_{max1}+x_e\&le;\left|x\right|<x_{max1}+x_e+x_f\end{array}$

Wherein │ χ │ is the displacement of structures isolation effect bearing, χ _max1for the maximum displacement that shock isolating pedestal design is allowed, x _eallow by buffer substance in snubber the extrusion deformation degree of generation, x _ffor the maximum deformation quantity (its value is very little, can ignore in Practical Calculation) that high-carbon steel wire occurs, the mass matrix that [M] is structure, the stiffness matrix that [K] is structure, the damping matrix that [C] is structure, [K _e] be the stiffness matrix of snubber, [K _f] be the stiffness matrix of high-carbon steel wire, x} is respectively acceleration, speed, the transposed matrix of structure, and I} is unit column vector, for ground motion horizontal acceleration, and

([K _f]+[K _e]+[K])>>([K _e]+[K])>[K]。

The rigidity of high-carbon steel wire can be set to infinity by designer in advance, obtains the stressed of high-carbon steel wire reality after analyzing as calculated, thus according to the diameter of actual loading determination high-carbon steel wire.When arranging high-carbon steel wire, high-carbon steel wire and its angle projected at horizontal plane should be noted, this angle directly affects the horizontal rigidity of high-carbon steel wire and the distribution of vertical rigidity, thus affect the effect benefit of high-carbon steel wire and affect the face pressure of shock isolating pedestal and the overturning moment of structure, so design load should reduce this angle in the design as far as possible.

Below in conjunction with accompanying drawing, structure of the present utility model is described in further detail:

Composition graphs 1-3 can see, the utility model shock isolating pedestal stopping means, comprises nemutogen 1 and snubber 2 that high tensile makes.Shock isolating pedestal upper junction plate 3 is firmly connected with shock isolating pedestal lower connecting plate 4 and snubber nemutogen; Link position is: shock isolating pedestal upper junction plate 3 and the corner of each respective side of shock isolating pedestal lower connecting plate 4 use the nemutogen 1 of four equal lengths to be connected by snubber 2 diagonal angle, and snubber 2 is positioned at the medium position that diagonal angle intersects.

Described snubber has outer rigid housing, four plush copper ends with the rigid bar of arcuation plush copper insert outer rigid housing center, rigid bar extends outer rigid housing along the slotted eye of outer rigid housing, has the plush copper outer rim of vulcanie circle 2-2 liner at rigid bar of cushioning effect; Positioning rubber 2-4 to insert in the space that four plush copper ends with the rigid bar of arcuation plush copper surround with fixing plush copper position, avoids producing plush copper displacement when nemutogen is in relaxed state.

Snubber outer rigid housing 2-1, vulcanie circle 2-2 are divided into the two-part symmetric construction in left and right in the present embodiment.Four rigid bars (one of them is denoted as 2-3 in the drawings) with arcuation plush copper and positioning rubber 2-4 be separated, the concrete structure of snubber is see shown in Fig. 3,4.Four rigid bar arranged outside earholes with arcuation plush copper be separated in the corner of the upper and lower junction plate of shock isolating pedestal with snubber, as shown in Figure 5,6.High-carbon steel wire end is connected with earhole knotting, when high-carbon steel wire tension, reaches buffering effect by outer rigid housing and the rigid bar extruding vulcanie circle with arcuation plush copper.For the inner impact from external environment condition of protection snubber, on snubber upper and lower two surfaces, protective layer of foil can be installed, as shown in Figure 7.Producing expendable distortion to prevent padded coaming to be subject to excessive extruding, flange can be set at the outer rigid housing 2-1 inner ring edge of snubber, as shown in Figure 8.After padded coaming is subject to certain crimp, bear too much extruding force by by flange.

Snubber each several part in shock isolating pedestal stopping means provided by the utility model is assembled by die casting, assembling sequence can refer to Fig. 4, be followed successively by outer rigid housing, vulcanie circle, four rigid bars with arcuation plush copper (tightening latch and bolt head form by mold integral casting, also can cast rear thread respectively and connect or welding), another vulcanie circle, another outer rigid housing, positioning rubber.Upper and lower two outer rigid housings of snubber punch outward by plane, establish bearing bolt assembly and connection in one in duct.

In sum, although basic structure of the present utility model, principle, method are specifically set forth by above-described embodiment, under the prerequisite not departing from the utility model main idea, according to above-described inspiration, those of ordinary skill in the art can not need to pay creative work can implement conversion, alternative form or combination, repeats no more herein.

Claims (4)

1. a shock isolating pedestal stopping means, comprise nemutogen (1) and snubber (2) that high tensile makes, it is characterized in that: shock isolating pedestal upper junction plate (3) is firmly connected with shock isolating pedestal lower connecting plate (4) and snubber nemutogen; Link position is: shock isolating pedestal upper junction plate (3) and the corner of shock isolating pedestal lower connecting plate (4) each respective side use the nemutogen of four equal lengths (1) to be connected by snubber (2) diagonal angle, and snubber (2) is positioned at the medium position that diagonal angle intersects.

2. shock isolating pedestal stopping means according to claim 1, is characterized in that: the nemutogen that described tensile strength is made higher than the material of 3400MP is high-carbon steel wire.

3. shock isolating pedestal stopping means according to claim 1, it is characterized in that: by four are separated in the corner of the upper and lower junction plate of shock isolating pedestal with snubber internal rigid rod member arranged outside earhole or other devices, describedly firmly to connect for high-carbon steel wire end is connected with earhole knotting.

4. a kind of shock isolating pedestal stopping means according to claim 1, it is characterized in that: described snubber has outer rigid housing, four plush copper ends with the rigid bar of arcuation plush copper insert outer rigid housing center, rigid bar extends outer rigid housing along the slotted eye of outer rigid housing, has the plush copper outer rim of vulcanie circle (2-2) liner at rigid bar of cushioning effect; Positioning rubber block is inserted in the space that four plush copper ends with the rigid bar of arcuation plush copper surround with fixing plush copper position.