CN2646197Y

CN2646197Y - Pot type tensile rubber bearing

Info

Publication number: CN2646197Y
Application number: CN 03278563
Authority: CN
Inventors: 胡建新
Original assignee: CHANGSHU WANBAO BRIDGE COMPONENTS Co Ltd
Current assignee: CHANGSHU WANBAO BRIDGE COMPONENTS Co Ltd
Priority date: 2003-09-12
Filing date: 2003-09-12
Publication date: 2004-10-06
Anticipated expiration: 2013-09-12

Abstract

The utility model discloses a pot type tensile rubber base, in particular a pot type tensile rubber base suitable to be used on railway bridge, road bridge, city aerial bridge and buildings of large-sized aerial structure. The pot type tensile rubber base comprises an upper seat board, an upper bottom board, a lower seat board, a lower base, a buffering board, a middle base, a buffering board. The utility model is characterized in that the two sides of the upper seat board extend downwards and are bended to form a pair of concaving parts; while a pair of rectangular protruding blocks are arranged at the upper edge of the lower base, the pair of rectangular protruding blocks are respectively extended into the pair of concaving parts of the upper seat board, and gaps exist between the walls of the concaving parts and the rectangular protruding blocks; a spring ring is ringed on the middle base, gaps exist between the outer wall of the spring ring and the inner wall of the cavity of the middle base. The utility model has the advantages that: 1.the utility model is benefit to enhance the slide anti-dialing ability of bridge face and bridge pier; 2. the utility model avoids the rigid contact between the middle base and the wall of the cavity of the middle base when the middle base rotates to protect the middle base.

Description

Anti-pull basin type rubber supporting seat

Technical field

The utility model discloses a kind of anti-pull basin type rubber supporting seat, the anti-pull basin type rubber supporting seat on particularly a kind of building that is applicable to railway bridge, road bridge, urban viaduct and various large-scale aerial constructions and so on.

Background technology

Pot rubber bearing is widely adopted already in above-mentioned infrastructure, when running into earthquake or other people and be the bigger vibration that causes, plays antidetonation by it.Pot rubber bearing relatively simple for structure, it is by upper base plate, upper plate, seat board, lower base, middle pedestal, organic folded the establishing of two buffer boards form down.Upper base plate and bridge floor beam body fix, upper plate is fixed on the upper base plate inboard, following seat board and bridge pier fix, lower base is fixed on down on the seat board, middle pedestal places in the middle base body cavity of lower base, wherein one piece of buffer board lining in two buffer boards is put between the upper surface and upper plate of middle pedestal, and other piece buffer board then serves as a contrast to be put between the lower surface and following seat board of middle pedestal.When brisance acts on the bridge floor of bridge and so on, weight transfer is given upper base plate, and then act on upper plate, through the buffer board on middle pedestal top buffering back so the buffer board through middle pedestal bottom cushion, the power that really affacts down on the seat board is weakened greatly, thus the antidetonation of playing, damping effect.Mainly there is following two places shortcoming in the pot rubber bearing of said structure: the one, and upper base plate and lower base lack the mechanism that can fasten each other between the two, and like this, when earthquake produced vertical vibration, power easily caused bridge floor and bridge pier produces disengaging because of nonreactive is dialled; The 2nd, in the middle of pedestal when rotating with middle base body cavity chamber wall between contact and show as the rigidity contact, this model easily makes the centre pedestal cause damage.

Summary of the invention

Task of the present utility model be to provide a kind of upper base plate and lower base can be good fit and effectively avoid bridge floor and bridge pier to produce breaking away from, the guarantee intermediate is difficult for impaired anti-pull basin type rubber supporting seat.

Task of the present utility model is finished like this, a kind of anti-pull basin type rubber supporting seat, by upper base plate 1, be fixed on the upper plate 2 of upper base plate 1 inboard, down seat board 11, be fixed on down the lower base with a middle base body cavity 8 12 on the seat board 11, fold buffer board 6, middle pedestal 4, the buffer board 3 established in regular turn and form.Characteristics are: described upper base plate 1 both sides are extended downwards and have been bent to form a doubling recess 16, and a pair of rectangle lug 9 is established in the expansion of described lower base 12 upper edges, this protrudes into an aforesaid doubling recess 16 respectively to rectangle lug 9, and and the folding recess 16 wall body between remain with gap 20,21; Be equipped with turn 14 on the pedestal 8 in the middle of described, keep somewhere gapped 19 between the inwall of the outer wall of turn 14 and middle base body cavity 8.

Multiple intrinsic reinforcement lath 17 on the cavity chamber wall of folding recess 16 described in the utility model.

The multiple intrinsic alloy bar 10 of left and right two sides of rectangle lug 9 described in the utility model, alloy bar 10 is corresponding with reinforcement lath 17.

Turn 14 described in the utility model is a rubber ring.

Reinforcement lath 17 described in the utility model is the stainless steel lath.

Advantage of the present utility model is: but 1. by a doubling recess 16 and a pair of buckle structure that a pair of rectangle lug 9 forms each other on the upper base plate 1, help improving the anti-power of dialling of slip of bridge floor, bridge pier; 2. the turn 14 by adding rubber system, in the middle of being avoided pedestal 4 when rotating with the chamber wall of middle base body cavity 8 between rigidity contact, play the effect of protecting centre pedestal 4.

Accompanying drawing and drawing explanation

Fig. 1 is the three-dimensional assembling assumption diagram of the utility model.

Fig. 2 is the structural representation that partly cuts open of the present utility model.

The specific embodiment

See Fig. 1, default some screws 18 that itself and bridge floor beam body are fixed of being used on the upper base plate 1, upper plate 2 general employing stainless-steel sheets are with upper base plate 1 inwall solid welding.Buffer board 3 is a polyfluortetraethylene plate, because the characteristic property of polyfluortetraethylene plate, thereby can play good cushioning effect, this buffer board cushioning effect 3 first time.The upside of buffer board 3 touches mutually with upper plate 2, and the downside of buffer board 3 slightly is formed with the parabola of a spherical crown shape, and this parabola places in the pelvic cavity 15 on middle pedestal 4 tops.Offering one on the middle part outer wall of middle pedestal 4 must be so that elastic ring 14 overlaps the annular groove of consolidating on it 5 well.Touch mutually with buffer board 6 bottom of middle pedestal 4, is equipped with sealing ring 7 on the buffer board 6.Buffer board 6 is a polyfluortetraethylene plate, because the characteristic property of polyfluortetraethylene plate, thereby can play good cushioning effect, this buffer board 6 plays the effect of buffering for the second time.Lower base 12 is welded on down on the seat board 11 securely, is preset with some screws 13 that itself and bridge pier are fixed of being used on the following seat board 11.

See Fig. 2, between the chamber wall of elastic ring 14 and middle base body cavity 8, maintain the gap 19 of trace.Equally, also remain with certain clearance 20 between alloy bar 10 and the reinforcement lath 17, also have, also be reserved with gap 21 between the downside of a pair of rectangle lug 9 and the folding recess 16.As can be known, buffer board 6 places the bottom of middle base body cavity 8 from this figure, pedestal 4 in the middle of settling in the above.When the Lower Half of middle pedestal 4 was arranged in the middle base body cavity 8, it was corresponding just at 8 position, inwall upper edge in the middle base body cavity to enclose the elastic ring 14 of cover on it, and both only deposit the distance in a crack.The first half of middle pedestal 4 then stretches out in outside the middle base body cavity 8.Buffer board 3 is located on the pelvic cavity 15 on middle pedestal 4 tops, and contacts with upper plate 2.

When bridge floor be subjected to that slight earthquake or other human factor cause when producing bigger traffic vibrations, weight transfer is given upper base plate 1, gravity or title brisance pass to upper base plate 1, and then act on buffer board 3, by buffer board 3 bufferings, the power that affacts on the middle pedestal 4 is decayed, and then make buffering for the second time through the buffer board 6 of middle pedestal 4 bottoms, cause the power that really affacts down on the seat board 11 and weaken greatly, finally affact brisance on the bridge pier and be almost little deficiency and lead.When run into than above-mentioned intensity strong by seimic during than big bang, can cause the spherical crown complete obiteration on the buffer board 3, and even moving down appears in pedestal 4 in the middle of making, even in this case, after gap 21 disappears, still by 6 corresponding cushioning effects of buffer board, simultaneously since an a pair of rectangle lug 9 and a doubling recess 16 both are constituted is the structure of drag hook form, have stronger uplift resistance, so, produce in the process of vertical vibration in earthquake, can avoid producing between bridge floor and the bridge pier disengaging.Certainly, in seismic process, when the angle displacement of trace appears in bridge floor, then by 14 damping, bufferings of elastic ring, before gap 19 disappeared, gap 20 existed all the time, when gap 19 disappears, gap 20 is as the same, middle pedestal 4 can be not directly when rotating yet with between the chamber wall in pedestal chamber 8 rigidity occurs and contact.

Claims

1, a kind of anti-pull basin type rubber supporting seat, by upper base plate (1), be fixed on the inboard upper plate (2) of upper base plate (1), following seat board (11), be fixed on down the lower base (12) on the seat board (11) with a middle base body cavity (8), the folded in regular turn buffer board of establishing (6), middle pedestal (4), buffer board (3) is formed, it is characterized in that described upper base plate (1) both sides extend and be bent to form a doubling recess (16) downwards, and a pair of rectangle lug (9) is established in the expansion of described lower base (12) upper edge, this protrudes into an aforesaid doubling recess (16) respectively to rectangle lug (9), and and the folding recess (16) wall body between remain with gap (20), (21); Be equipped with turn (14) on the pedestal (8) in the middle of described, keep somewhere between the inwall of the outer wall of turn (14) and middle base body cavity (8) gapped (19).

2, anti-pull basin type rubber supporting seat according to claim 1 is characterized in that multiple intrinsic reinforcement lath (17) on the cavity chamber wall of described folding recess (16).

8, anti-pull basin type rubber supporting seat according to claim 1 is characterized in that left and right two sides of described rectangle lug (9) are answered intrinsic alloy bar (10), and alloy bar (10) is corresponding with reinforcement lath (17).

4, anti-pull basin type rubber supporting seat according to claim 1 is characterized in that described turn (14) is a rubber ring.

5, anti-pull basin type rubber supporting seat according to claim 2 is characterized in that described reinforcement lath (17) is the stainless steel lath.