CN103306195A

CN103306195A - FRP (fiber reinforced plastic) stiffening plate rubber vibration isolation support as well as manufacturing method and application thereof

Info

Publication number: CN103306195A
Application number: CN2013102371815A
Authority: CN
Inventors: 金文成; 郑文衡
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-06-14
Filing date: 2013-06-14
Publication date: 2013-09-18

Abstract

The invention discloses an FRP stiffening plate rubber vibration isolation support as well as a manufacturing method and an application thereof, and relates to a vibration isolation support for bridges and high-rise buildings. The support comprises FRP stiffening plates (10) and rubber plates (20) which are stacked in a staggered manner, wherein a cross section of the FRP stiffening plate rubber vibration isolation support is square or round. The manufacturing method of the support comprises the following steps: 1, the FRP stiffening plates (10) matched with the support in size are prepared; 2, punching is performed on the FRP stiffening plates (10) or the FRP stiffening plates (10) are manufactured to be latticed; and 3, an adhesive agent is coated between each layer of rubber plate (20) and each FRP stiffening plate (10) in a die for staggered stacking and compression so as to achieve once vulcanization forming. Compared with a common steel plate rubber support, the support has high strength, light weight, good durability, no magnetism and low cost, and is suitable for bridges and high-rise building structures.

Description

FRP stiffener rubber earthquake isolation support and manufacture method thereof and application

Technical field

The present invention relates to the shock isolating pedestal of a kind of bridge and Bases in High Building Construction, relate in particular to a kind of FRP stiffener rubber earthquake isolation support and manufacture method and application.Specifically, be that performance FRP material weight is light, intensity is high and corrosion resistant advantage with the stiffener of FRP plate as the rubber earthquake isolation support the inside.

Background technology

Common laminated rubber bearing is the bearing that is superimposed and staggered by one deck rubber and one deck steel plate, and steel plate plays distortion, and rubber plays shock insulation and the effect of protection steel plate.Common laminated rubber bearing is used for bridge construction and Bases in High Building Construction, and its function is to transmit vertical load, adaptation level distortion and damper.

At present, steel have been widely used in civil engineering, military project building and some special engineering.Yet since the steam engine invention, iron and steel resource was exploited more than 300 year, resource-constrained, and cost of winning significantly increases along with the continuous exhaustion of resource, therefore needs to seek effective alternate resources.Take glass fiber, basalt fibre, carbon fiber, aramid fiber or other high strength fibres as main material, the substitute products that a kind of new material of making take resin as auxiliary material---fibre reinforced composites (Fiber Reinforced Polymer is called for short FRP) have become to have broad prospect of application.

The tensile strength of FRP plate is 1.5～2.5 times of steel, and density is 1/5～1/4 of steel, has the advantages such as not corrosion, nonmagnetic and good endurance, is high, the lightweight and corrosion resistant novel building composite material of a kind of tensile strength.

Through retrieval, have no with the report of FRP plate as the stiffener of neoprene bearing, also have no about making the index of patents of FRP stiffener rubber earthquake isolation support.

Summary of the invention

Purpose of the present invention just be to overcome existing common laminated rubber bearing easily get rusty, from the shortcoming such as great, a kind of FRP stiffener rubber earthquake isolation support and manufacture method and application are provided.

The object of the present invention is achieved like this:

One, FRP stiffener

1, FRP stiffener component

By weight percentage, cloth 40～60%, resin adhesive liquid 60～40%;

Described cloth is the two-way cloth that is woven into by glass fiber, basalt fibre or carbon fiber;

Described resin adhesive liquid is a kind of chemical products commonly used.

2, FRP stiffener manufacture method

1. adopt the technique of one deck resin adhesive liquid, one deck cloth, cloth is evenly superimposed by all angles

In resin adhesive liquid, the number of plies of cloth is 4～7 layers, obtains the base material blank;

2. the base material blank is put into the mould extrusion forming of heating, for vinyl epoxy resin and other intermediate temperature setting epoxy resin, be warmed to 150～170 ℃, for the hot setting resin, be warmed to 220～250 ℃, be pressurized to 5-20Mpa;

3. using machinery to move back modeling method taking-up finished product is the FRP stiffener.

Two, FRP stiffener rubber earthquake isolation support

FRP stiffener rubber earthquake isolation support is comprised of FRP stiffener and rubber tile, FRP stiffener and rubber tile intersecting, and the cross section of FRP stiffener rubber earthquake isolation support is square or circular.

The manufacture method of FRP stiffener rubber earthquake isolation support comprises the following steps:

1. be ready to the FRP stiffener that is complementary with supporting stand size;

2. in FRP stiffener punching or make latticed;

3. between each layer rubber tile and FRP stiffener with being coated with adhesive sulfidization molding of intersecting pressurization in mould.

The function of FRP stiffener is to provide the bearing vertical rigidity, reduces bearing in the distortion of bearing under the vertical force effect; The function of rubber tile is to provide the ability of the distortion of bearing horizontal shear and inhomogeneous vertical compressive strain.

Three, the application of FRP stiffener rubber earthquake isolation support

1, is applied in the bridge construction

FRP stiffener rubber earthquake isolation support can be used in the bridge construction, replaces traditional laminated rubber bearing.

2, be applied in the building construction

FRP stiffener rubber earthquake isolation support can be used in the Bases in High Building Construction, plays the effect of damper.

Compare with the general steel plate neoprene bearing, the present invention has following advantages and good effect:

1. high, lightweight, the good endurance of this bearing intensity, nonmagnetic and cost is low;

2. use this bearing easy to operate, do not need large lifting equipment;

3. the manufacture method of this bearing adopts mechanization, semi-automatic press molding method, has improved production efficiency, has alleviated labour intensity, has reduced raw-material loss and Active workings, has energy-conservation, emission reduction effect;

4. the present invention is applicable in bridge and the high-story house structure.

Description of drawings

Fig. 1 .1 is the structural front view of FRP stiffener rubber earthquake isolation support;

Fig. 1 .2 is the structure side view of FRP stiffener rubber earthquake isolation support;

Fig. 1 .3 is the structure top view of FRP stiffener rubber earthquake isolation support;

Fig. 2 .1 is the structural front view that adds the FRP stiffener rubber earthquake isolation support of tetrafluoro slide plate;

Fig. 2 .2 is the structure side view that adds the FRP stiffener rubber earthquake isolation support of tetrafluoro slide plate;

Fig. 2 .3 is the structure top view that adds the FRP stiffener rubber earthquake isolation support of tetrafluoro slide plate.

Among the figure:

10-FRP stiffener;

20-rubber tile;

30-tetrafluoro slide plate.

The specific embodiment

Describe in detail below in conjunction with drawings and Examples:

One, the structure of FRP stiffener rubber earthquake isolation support

1, overall

Such as Fig. 1 .1,1.2,1.3, FRP stiffener rubber earthquake isolation support is comprised of FRP stiffener 10 and rubber tile 20; FRP stiffener 10 and rubber tile 20 intersectings;

The cross section of FRP stiffener rubber earthquake isolation support is square or circular.

2, parts

1) the FRP stiffener 10

A, FRP stiffener 10 components

By weight percentage, cloth 40～60%, resin adhesive liquid 60～40%;

A, described cloth are any one in glass fiber, basalt fibre and the carbon fiber;

Specifically, cloth is the two-way cloth that is woven into by glass fiber, basalt fibre or carbon fiber; Described two-way cloth refers to the cloth that warp and parallel all adopt the fibrous woven of identical material to become.

B, described resin adhesive liquid are a kind of chemical products commonly used;

Specifically, resin adhesive liquid is the mixture of resin and curing compound, accelerator (accelerator also can), initator (initator also can); This mixture solidifies after mixing within a certain period of time;

Described resin can be unsaturated-resin, such as polyester; Also can be epoxy resin or vinylite.

Different resin solidification temperature and curing compound type are all different, can be with reference to the operation instruction of this resin.

B, FRP stiffener 10 manufacture methods

The technique of a, employing one deck resin adhesive liquid, one deck cloth, cloth is evenly superimposed by all angles

B, the base material blank is put into the mould extrusion forming of heating, for vinyl epoxy resin and other intermediate temperature setting epoxy resin, be warmed to 150～170 ℃, for the hot setting resin, be warmed to 220～250 ℃, be pressurized to 5-20Mpa;

It is FRP stiffener 10 that c, use machinery move back modeling method taking-up finished product.

2) rubber tile 20

Rubber tile 20 is a kind of chemical products commonly used.

Two, expansion structure---add the FRP stiffener neoprene bearing of tetrafluoro slide plate

1, the structure that adds the FRP stiffener neoprene bearing of tetrafluoro slide plate

1) overall

Such as Fig. 2 .1,2.2,2.3, the FRP stiffener rubber earthquake isolation support that adds the tetrafluoro slide plate is comprised of FRP stiffener 10, rubber tile 20 and tetrafluoro slide plate 30; FRP stiffener 10 and rubber tile 20 intersectings, tetrafluoro slide plate 30 brings to Front;

The cross section that adds the FRP stiffener rubber earthquake isolation support of tetrafluoro slide plate is square or circular.

2) parts

A, FRP stiffener 10, as previously mentioned

B, rubber tile 20, as previously mentioned

C, tetrafluoro slide plate 30, the engineering common used material

2, the manufacture method that adds the FRP stiffener neoprene bearing of tetrafluoro slide plate

With being coated with adhesive the tetrafluoro slide plate is placed on the topping rubber plate 20 of FRP stiffener neoprene bearing.

3, the FRP stiffener neoprene bearing of adding tetrafluoro slide plate has new function

The friction factor of tetrafluoro slide plate is less, can better adapt to the horizontal movement of bridge superstructure.

Three, test situation

1, to the test of FRP stiffener 10

Test to FRP stiffener 10 shows, the maximum tension stress value constantly reduces along with the increase of ratio of rigidity, reduces value less when ratio of rigidity is very little, and when ratio of rigidity was increasing, it is also increasing that maximum stress value reduces amplitude.The main cause that produces this phenomenon is that the modulus of elasticity when FRP stiffener 10 is when larger, FRP stiffener 10 can be treated to rigid body substantially with respect to rubber, FRP stiffener 10 can be considered as the rigid constraint body of rubber swelling, the variation of its modulus of elasticity is little on the impact of FRP stiffener 10 stress; When the modulus of elasticity of the modulus of elasticity of FRP stiffener 10 and rubber near the time, FRP stiffener 10 can not be treated to rigid body, has very large deflection, so the variation of its modulus of elasticity can have a great impact FRP stiffener 10 stress.

Also can reach a conclusion from experiment: the large bearing of planar dimension is in ratio of rigidity under hour identical action of compressive stress, the maximum stress value of FRP stiffener 10 is large, but when ratio of rigidity is very large, the bearing less than planar dimension is less on the contrary for its value, the bearing that this illustrated planar size is large is larger to the effect of contraction of rubber, thereby reducing its impact of the stiffness layer of putting more energy into is larger.

2, to the test of FRP stiffener rubber earthquake isolation support (abbreviation bearing)

1) axial compression test passes through the axial compression test to 78 round bearings, when stress surpasses 15MPa, and the obvious steepening of stress-strain diagram, so the allowable compressive stress of bearing is preferably 12.5MPa.2) modulus of shearing is by the shearing experiment of 54 groups of bearings, and regression analysis draws the shear modulus G=1.0MPa of round bearing.3) experiment of rotation of experiment of rotation by 29 groups of bearings shows that when rubber layer gross thickness during greater than bearing diameter 1/10 during round bearing rotation, all can satisfy the rotating property requirement of bridge, bearing can not come to nothing because of rotation.

Claims

1. FRP stiffener is characterized in that:

The compositions in weight percentage of FRP stiffener (10), cloth 40～60%, resin adhesive liquid 60～40%;

Described cloth is the two-way cloth that is woven into by glass fiber, basalt fibre or carbon fiber.

2. by the manufacture method of a kind of FRP stiffener claimed in claim 1, it is characterized in that:

3. using machinery to move back modeling method taking-up finished product is FRP stiffener (10).

3. based on the FRP stiffener rubber earthquake isolation support of a kind of FRP stiffener claimed in claim 1, it is characterized in that:

Formed by FRP stiffener (10) and rubber tile (20), FRP stiffener (10) and rubber tile (20) intersecting, the cross section of FRP stiffener rubber earthquake isolation support is square or circular.

4. by the manufacture method of FRP stiffener rubber earthquake isolation support claimed in claim 3, it is characterized in that:

1. be ready to the FRP stiffener (10) that is complementary with supporting stand size;

2. punch or make latticed at FRP stiffener (10);

3. between each layer rubber tile (20) and FRP stiffener (10) with being coated with adhesive sulfidization molding of intersecting pressurization in mould.

5. based on the FRP stiffener rubber earthquake isolation support of the adding tetrafluoro slide plate of a kind of FRP stiffener claimed in claim 1, it is characterized in that:

Formed by FRP stiffener (10), rubber tile (20) and tetrafluoro slide plate (30); FRP stiffener (10) and rubber tile (20) intersecting, tetrafluoro slide plate (30) brings to Front;

The cross section that adds the FRP stiffener rubber earthquake isolation support of tetrafluoro slide plate (30) is square or circular.