CN2063538U

CN2063538U - Bridge body and spherical plate type rubber bearing

Info

Publication number: CN2063538U
Application number: CN 90203614
Authority: CN
Inventors: 王心方
Original assignee: Shanghai Municipal Engineering Design Insitute Group Co Ltd
Current assignee: Shanghai Municipal Engineering Design Insitute Group Co Ltd
Priority date: 1990-03-24
Filing date: 1990-03-24
Publication date: 1990-10-10

Abstract

The utility model relates to a spherical surface plate type rubber bearing and a bridge body, and the bridge body is supported by the spherical plate type rubber bearing, wherein, the upper end face of the bearing is in a convex spherical surface shape, concave spherical surfaces are arranged on the beam bottom face of the supporting point of the bridge body, the quantity of the concave spherical surface is equal to the quantity of the bearing, and the spherical radius of the concave spherical surface is same to the spherical radius of the convex spherical surface of the bearing. After the bridge body is lifted completely, the concave spherical surfaces are respectively engaged with the convex spherical surfaces of the bearings. When the supporting structure is adopted, the engagement position of the concave spherical surfaces and the convex spherical surfaces can be adjusted with each other; so the nonparallelism between the bridge bottom face of the supporting point of the bridge body, the bridge pier and the platform top face can be adapted greatly, and the bearings are ensured to realize the equal application of pressure all the time, and the design, the manufacture and the installation of the bridge can be easily realized.

Description

Bridge body and spherical plate type rubber bearing

The utility model relates to bridge beam body and bearing thereof, and particularly a kind of bridge is with the sphere laminated rubber bearing and adopt the bridge beam body of this seat supports.

The flat-faced tube neoprene bearing has obtained widespread usage on bridge engineering, upper and lower two end faces of this board-like bearing are the plane, and parallel to each other.But in use, there is following shortcoming in this flat-faced tube neoprene bearing.In the construction and installation process of bridge beam body, there are various sizes and alignment error inevitably, in addition, behind beam body location, itself also has certain amount of deflection.The amount of deflection of this size and alignment error and beam body self tends to cause soffit and bridge pier, the countertop at beam body supporting-point place to be not parallel to each other, and will cause being supported on the stress that the flat-faced tube neoprene bearing between soffit and pier, the countertop bears like this and be uneven distribution; When the nonparallelism of soffit and pier, countertop surpasses one when delimiting, because of flat-faced tube neoprene bearing degree of the compressed distortion limited, can't regulate again, the result will localized voids occur between bearing and bridge construction, undesirable local compression state appears on the bearing, like this, will directly influence the supporting capacity and the application life of bearing.In addition, when bridge is positioned on the longitudinal gradient, handle, situation similar to the above still often occurs even on the soffit at the supporting-point place of beam body, made corresponding structure.

The purpose of this utility model provides a kind of bridge with the sphere laminated rubber bearing and adopt the bridge beam body of this seat supports.When occurring largely nonparallelism between the soffit at convenient beam body supporting-point place and bridge pier, the countertop, still can make bearing keep the uniform-compression state, thereby overcome aforesaid shortcoming.

Technical solution of the present utility model is: a kind of bridge sphere laminated rubber bearing comprises: the laminated rubber bearing body, wherein, the upper surface of this laminated rubber bearing body is protruding dome shape.

A kind of bridge beam body that adopts above-mentioned seat supports comprises: the beam body, wherein, the soffit at beam body supporting-point place be provided with equate with above-mentioned bearing quantity and have the concave spherical surface of same ball radius with the protruding sphere of above-mentioned bearing.

Use above-mentioned bearing and Liang Tishi, behind beam body hoisted in position, the protruding sphere of each neoprene bearing respectively with the soffit at beam body supporting-point place on each concave spherical surface mesh one by one, like this, even soffit and bridge pier, the countertop at beam body supporting-point place are not parallel to each other, because the concave, convex sphere of soffit and bearing can be adjusted the position of engagement mutually, therefore, the sphere laminated rubber bearing can be in the state of uniform-compression all the time, thereby guarantees its supporting capacity and application life.In addition, when bridge is positioned on the longitudinal gradient, adopt bearing of the present utility model and beam body, as long as the gradient of longitudinal gradient is no more than certain limit, the structure that just need not remake other to the soffit at beam body supporting-point place is handled.Therefore, adopt bearing of the present utility model and beam body, the design and the construction of bridge brought great convenience.

Below in conjunction with accompanying drawing, describe other purposes of the present utility model, feature and advantage in detail, wherein:

Fig. 1 is the schematic perspective view after a kind of bridge is cut open with the sphere laminated rubber bearing;

Fig. 2 is the user mode schematic diagram of sphere laminated rubber bearing of the present utility model and beam body;

Fig. 3 is a kind of schematic perspective view that is used to be embedded in after the cutting open of concave spherical surface shape steel dish on the soffit, beam body supporting-point place.

Referring to Fig. 1, a kind of bridge sphere laminated rubber bearing comprises laminated rubber bearing body 1, and its upper surface 2 is protruding dome shape.

Referring to Fig. 2, a kind of plate-girder beam body that adopts sphere laminated rubber bearing 1 to support comprises beam body 3, is provided with to equate with bearing 1 quantity and have the concave spherical surface 301 of same ball radius with the protruding sphere 2 of bearing 1 on the soffit at the supporting-point place of beam body 3.Behind beam body 3 hoisted in position, the protruding sphere 2 of each bearing 1 respectively with the soffit of beam body 3 on each concave spherical surface 301 engagement, like this, even the soffit at beam body 3 supporting-point places and the end face 401 of abutment 4 are not parallel, also can make bearing 1 be in the uniform-compression state all the time by the adjustment of the position of engagement between the concave, convex sphere 301,2 of soffit and bearing.

Referring to Fig. 3, for the ease of concave spherical surface 301 is set on the soffit at beam body 3 supporting-point places, and improve the local supporting capacity at this place, described concave spherical surface 301 can be by being embedded in equating with bearing 1 quantity and having concave spherical surface shape steel dish 5 formations of same ball radius with the protruding sphere 2 of bearing 1 of this place (among the figure draw).

In order to improve the supporting capacity of sphere laminated rubber bearing 1, can be in the body of this bearing 1 at least the horizontal stacking formula clamp one at interval, be generally three to seven, plane steel plate 101 is seen Fig. 1.

In addition, can also on the bottom surface of sphere laminated rubber bearing, paste lastblock polyfluortetraethylene plate (not drawing among the figure), become polyfluortetraethylene plate sphere laminated rubber bearing.

Bridge of the present utility model can be made circle, rectangle or square as required with the profile of sphere laminated rubber bearing.

Claims

1, a kind of bridge sphere laminated rubber bearing comprises: the laminated rubber bearing body is characterized in that the upper surface of described laminated rubber bearing body is protruding dome shape.

2, sphere laminated rubber bearing as claimed in claim 1 is characterized in that, the horizontal stacking formula has clamped a plane steel plate at interval at least in described sphere laminated rubber bearing body.

3, sphere laminated rubber bearing as claimed in claim 1 or 2 is characterized in that, posts a polyfluortetraethylene plate on the bottom surface of described sphere laminated rubber bearing body.

4, sphere laminated rubber bearing as claimed in claim 3 is characterized in that, the profile of described sphere laminated rubber bearing body is circle or rectangle or square.

5, a kind of bridge beam body that adopts sphere laminated rubber bearing as claimed in claim 1 to support, comprise: the beam body, it is characterized in that, the soffit at beam body supporting-point place be provided with equate with described bearing quantity and have the concave spherical surface of same ball radius with the protruding sphere of described bearing.

6, beam body as claimed in claim 5 is characterized in that, described concave spherical surface by on the soffit that is embedded in bridge supporting-point place, equate with described bearing quantity and constitute with concave spherical surface shape steel dish that the protruding sphere of described bearing has a same ball radius.