CN203213337U

CN203213337U - Anti-buckling support structure adopting FRP (fiber reinforced plastic) profile

Info

Publication number: CN203213337U
Application number: CN 201320203336
Authority: CN
Inventors: 潘鹏; 叶列平; 陆新征; 胥晓光; 陈浩文; 曹海韵
Original assignee: Tsinghua University
Current assignee: Tsinghua University
Priority date: 2013-04-19
Filing date: 2013-04-19
Publication date: 2013-09-25
Anticipated expiration: 2023-04-19

Abstract

The utility model belongs to the technical field of shock absorption of a civil engineering structure, and particularly relates to an anti-buckling support structure which adopts an FRP profile and is used for rapid industrial production. A core energy dissipation component adopts a linear steel plate, and cross sections of two ends of the core energy dissipation component are expanded in the width direction; the two ends of the linear steel plate and a steel plate are perpendicularly welded into a cross shape, so that the connection with a structural member is facilitated; two FRP hollow ribbed profiles are clamped on two sides of the linear steel plate respectively, an outer ring is wound with FRP cloth, and a porous foam material is filled among the linear steel plate, the FRP hollow ribbed profiles and the FRP cloth; and connection structures used for being connected with the structure are arranged at two ends of the linear steel plate and the steel plate. The anti-buckling support structure adopts the steel with a good plastic deformation capacity, particularly soft steel, to achieve energy dissipation, and utilizes axial deformation to achieve larger hysteresis energy dissipation, and the structure is novel and reasonable, easy to process, convenient and flexible to use and strong in applicability, can effectively improve an anti-seismic property of a building structure, and has a wide market popularization and application prospect.

Description

FRP section bar buckling-resistant support structure

Technical field

The utility model belongs to civil engineering structure cushion technique field, is specifically related to a kind of FRP section bar buckling-resistant support structure of quick suitability for industrialized production.

Background technology

Frame construction comprises reinforced concrete frame structure and steel framed structure, be to use the most general form of structure in the current global range, it is strong that it has designability, it is lighter to conduct oneself with dignity, significant advantages such as good economy performance, yet laterally do the time spent then to occur relative storey displacement easily excessive and influence the later stage use even because strength deficiency destroys, the phenomenon of collapsing when meeting with earthquake etc.For making building structure have the ability of stronger outside destroy such as opposing earthquake, often need in frame construction, set up the power consumption member.

Common power consumption member has viscous type damper, viscoelastic damper, friction-type damper, MR damper, anti-flexing support etc.Wherein anti-flexing supports because of its safety and better economy and is easy to advantage such as replacing, and application is more in engineering.General concrete filled steel tube, steel concrete or the clean steel etc. of adopting of the outer kernel form that at present anti-flexing supports retrain more.It is better that the anti-flexing of concrete filled steel tube form supports binding effect, but exist construction slower, shortcomings such as it is bigger to conduct oneself with dignity, the anti-flexing of steel concrete supports then the rigidity decline because of concrete cracking, problems such as deadweight simultaneously is bigger, though it is lighter that the anti-flexing of clean steel supports deadweight, has economy problems.More than the shortcoming of anti-flexing support has limited applying of anti-flexing support to a certain extent.

Summary of the invention

The purpose of this utility model provides a kind of simple structure, is convenient to the rapid production of factory, utilizes the FRP material to realize that the anti-flexing of high-strength light supports, in order to solve anti-flexing supports in the prior art defective and the problem of other existence.

The technical solution adopted in the utility model is:

The core dissipative cell is the yi word pattern steel plate, and its cross section, both ends enlarges at width; The yi word pattern steel plate is connected into cross at both ends and steel plate vertical welding, conveniently be connected with structural element; Two blocks of hollow section bars with ribbing of FRP are clipped in the both sides of yi word pattern steel plate respectively, the FRP cloth is twined in the outer ring, and between yi word pattern steel plate, the hollow section bar with ribbing of FRP and FRP cloth filling porous foamed material, to reduce the friction force between kernel and the outsourcing unit and the space of kernel lateral deformation be provided; Be provided for the syndeton that links to each other with structure on the two ends of yi word pattern steel plate and the steel plate.

The syndeton that is used for linking to each other with structure that arranges on the two ends of described yi word pattern steel plate and the steel plate is through hole or screwed hole.

Described yi word pattern steel plate is the steel plate with good plastic deformation ability.

The middle part of described yi word pattern steel plate is respectively equipped with the fritter projection in the width both sides, and it is recessed at the middle part of the hollow section bar with ribbing of FRP corresponding fritter to be set also, and both cooperate the formation constraint, to prevent the changing of the relative positions.

The hollow section bar with ribbing of described FRP has enough the lateral deformation of big constraint stiffness limits kernel steel for carrying out the FRP drawing and extruding section bar of quick suitability for industrialized production.

The end of the hollow section bar with ribbing of described FRP arranges notch, in order to be connected cooperation with steel plate.

The utility model beneficial effect is as follows:

1) can realize the member lighting.The utility model takes full advantage of the characteristics of FRP material high-strength light, is realizing overcoming traditional form from great shortcoming under the function prerequisite that the anti-flexing of traditional form supported in the past.Further alleviate member dead weight by hollow form with ribbing, need not to fill other materials in the chamber.

2) simple in structure, convenient processing.The utility model as dissipative cell, need not welding fabrication with the yi word pattern steel plate; Perforate on the steel plate of end is fixed by bolted mode and agent structure, makes things convenient for the concreting in the outer core steel pipe.

3) being convenient to heavy industrialization produces fast.Most of production link of the present utility model all is convenient to factory's streamline batch process, and the yi word pattern steel need not welding fabrication, and FRP drawing and extruding section bar and winding process all can be realized continuous productive process, and the production efficiency height reduces human cost greatly.

Evidence, the utility model can utilize the good plastic deformation ability of steel to realize power consumption, utilize the FRP material behavior to realize lighting simultaneously, its novel and reasonable structure, be easy to processing, easy to use, can effectively improve the anti-seismic performance of building structure, have vast market promotion and application prospect.

Description of drawings

Fig. 1 is the schematic diagram of structure described in the utility model;

Fig. 2 is that the E of Fig. 1 is to view.

Fig. 3 is the shape schematic diagram of yi word pattern steel plate.

Fig. 4 is A-A face sectional drawing among Fig. 1.

Fig. 5 is B-B face sectional drawing among Fig. 1.

Fig. 6 is C-C face sectional drawing among Fig. 1.

Fig. 7 is the application schematic diagram embodiment one that the anti-flexing of quick suitability for industrialized production FRP section bar supports.

Fig. 8 is the application schematic diagram embodiment two that the anti-flexing of quick suitability for industrialized production FRP section bar supports.

Number in the figure:

1-yi word pattern steel plate; The 2-steel plate; The hollow section bar with ribbing of 3-FRP; The 4-FRP cloth; The 5-through hole.

The specific embodiment

The utility model provides a kind of FRP section bar buckling-resistant support structure of quick suitability for industrialized production, below in conjunction with the drawings and specific embodiments the utility model is described further.

Embodiment one

The anti-flexing of the FRP section bar of the quick suitability for industrialized production of the utility model as shown in Figure 1 and Figure 2 supports, and comprises the newly-increased steel plate 2 in yi word pattern steel plate 1, end as kernel, as the hollow section bar 3 with ribbing of the FRP of outer core and FRP cloth 4.Yi word pattern steel plate 1 is connected into cross at both ends and steel plate 2 vertical weldings, conveniently be connected with structural element.Two blocks of hollow section bars 3 with ribbing of FRP are clipped in yi word pattern steel plate 1 both sides, and FRP cloth 4 is twined in the outer ring, and between yi word pattern steel plate 1, the hollow section bar 3 with ribbing of FRP and FRP cloth 4 filling porous foamed material.Can be provided for the syndeton that links to each other with structure on the end of yi word pattern steel plate 1 and the steel plate 2, be through hole 5 in this example.

As shown in Figure 3, yi word pattern steel plate 1 middle part is respectively equipped with the fritter projection in the width both sides, cooperates the hollow section bar 3 with ribbing of FRP to prevent from supporting the axial changing of the relative positions of kernel.

As Fig. 4, Fig. 5, shown in Figure 6, kernel is yi word pattern steel plate 1 at the middle part, expands as cross-shaped steel in the end, and outer core is the complete hollow section bar 3 with ribbing of two FRP at the middle part, and machinery goes out groove in the changeover portion end, so that steel plate 2 stretches out.The power consumption section of kernel is surrounded by the hollow section bar 3 with ribbing of FRP and FRP cloth 4, and the end is only linked to each other with structural element by cross steel cross section.

As shown in Figure 7, utilize pre-buried plate 7 to realize being connected of structure 8 described in the utility model and frame construction in this example, plate 7 is embedded in Vierendeel girder 9 and the frame column 10.The through hole that is provided for connecting at plate 7, and be connected by junction plate and high-strength bolt with through hole on the I shape edge of a wing, end of the present utility model.In addition, is connected with other structures for convenience, on the I shape edge of a wing except the through hole that is provided for described in this example connecting, screwed hole also can be set, have connecting hole otic placode etc. other be used for structures of connection.

Embodiment two

Referring to Fig. 8, be with embodiment one difference, at a span centre the described structure 8 of two basic utility models is set.Need arrange pre-buried plate 11 this moment at the Vierendeel girder middle part, in case of necessity, needs to add stiffening rib on the pre-buried plate 11 to guarantee bonding strength and rigidity.

Claims

1.FRP the section bar buckling-resistant support structure is characterized in that: the core dissipative cell is yi word pattern steel plate (1), and its end cross-sectional enlarges at width; Described yi word pattern steel plate (1) is connected into cross in end and steel plate (2) vertical welding; Be provided for the through hole that links to each other with structure on the two ends of described yi word pattern steel plate (1) and the steel plate (2); Two blocks of hollow section bars with ribbing of FRP (3) are clipped in the both sides of described yi word pattern steel plate (1) respectively, and FRP cloth (4) is twined in the outer ring, and between yi word pattern steel plate (1), the hollow section bar with ribbing of FRP (3) and FRP cloth (4) filling porous foamed material; The end of the hollow section bar with ribbing of described FRP (3) arranges notch; The hollow section bar with ribbing of described FRP (3) is for carrying out the FRP drawing and extruding section bar of quick suitability for industrialized production.

2. FRP section bar buckling-resistant support structure according to claim 1, it is characterized in that, the middle part of described yi word pattern steel plate (1) is respectively equipped with the fritter projection in the width both sides, and it is recessed at the middle part of the hollow section bar with ribbing of FRP (3) corresponding fritter to be set also.