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

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

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CN203213337U
CN203213337U CN 201320203336 CN201320203336U CN203213337U CN 203213337 U CN203213337 U CN 203213337U CN 201320203336 CN201320203336 CN 201320203336 CN 201320203336 U CN201320203336 U CN 201320203336U CN 203213337 U CN203213337 U CN 203213337U
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steel plate
frp
profile
inline
utility
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潘鹏
叶列平
陆新征
胥晓光
陈浩文
曹海韵
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Tsinghua University
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Tsinghua University
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Abstract

本实用新型属于土木工程结构减震技术领域,具体涉及一种快速工业化生产的FRP型材防屈曲支撑结构。核心耗能元件为一字型钢板,其两端部截面在宽度方向上扩大;一字型钢板在两端部与钢板垂直焊接成十字型,方便与结构构件连接;将两块FRP空心带肋型材分别夹在一字型钢板的两侧,外圈缠绕FRP布料,并在一字型钢板、FRP空心带肋型材及FRP布料之间填充多孔泡沫材料;一字型钢板的两端及钢板上设置用于与结构相连的连接结构。本实用新型利用具有良好塑性变形能力的钢材尤其是软钢实现耗能,并利用其轴向变形实现较大的滞回耗能,其结构新颖合理,易于加工,使用方便灵活,适用性强,可以有效提高建筑结构的抗震性能,具有广阔的市场推广应用前景。

Figure 201320203336

The utility model belongs to the technical field of shock absorption of civil engineering structures, and in particular relates to a buckling-resistant supporting structure of FRP profiles produced in rapid industrialization. The core energy-dissipating element is a straight-shaped steel plate, and the cross-section at both ends is enlarged in the width direction; the straight-shaped steel plate is vertically welded to the steel plate at both ends to form a cross shape, which is convenient for connection with structural members; the two FRP hollow ribbed Profiles are clamped on both sides of the inline steel plate, FRP fabric is wound around the outer ring, and porous foam material is filled between the inline steel plate, FRP hollow ribbed profile and FRP fabric; the two ends of the inline steel plate and the steel plate are Sets the connection structure used to connect to the structure. The utility model utilizes steel with good plastic deformation capacity, especially soft steel, to realize energy consumption, and utilizes its axial deformation to realize relatively large hysteretic energy consumption. Its structure is novel and reasonable, easy to process, convenient and flexible to use, and strong in applicability. The anti-seismic performance of building structures can be effectively improved, and the invention has broad market promotion and application prospects.

Figure 201320203336

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 (2)

1.FRP型材防屈曲支撑结构,其特征在于:核心耗能元件为一字型钢板(1),其端部截面在宽度方向上扩大;所述一字型钢板(1)在端部与钢板(2)垂直焊接成十字型;所述一字型钢板(1)的两端及钢板(2)上设置用于与结构相连的通孔;两块FRP空心带肋型材(3)分别夹在所述一字型钢板(1)的两侧,外圈缠绕FRP布料(4),并在一字型钢板(1)、FRP空心带肋型材(3)及FRP布料(4)之间填充多孔泡沫材料;所述 FRP空心带肋型材(3)的端部设置槽口;所述FRP空心带肋型材(3)为能够进行快速工业化生产的FRP拉挤型材。1. FRP profile anti-buckling support structure, characterized in that: the core energy-dissipating element is a straight steel plate (1), and its end section expands in the width direction; the straight steel plate (1) is connected to the steel plate at the end (2) Vertically welded into a cross shape; the two ends of the one-shaped steel plate (1) and the steel plate (2) are provided with through holes for connecting with the structure; two FRP hollow ribbed profiles (3) are respectively clamped On both sides of the inline steel plate (1), FRP cloth (4) is wound on the outer ring, and holes are filled between the inline steel plate (1), FRP hollow ribbed profile (3) and FRP cloth (4) Foam material; the end of the FRP hollow ribbed profile (3) is provided with notches; the FRP hollow ribbed profile (3) is an FRP pultrusion profile capable of rapid industrial production. 2.根据权利要求1所述的FRP型材防屈曲支撑结构,其特征在于,所述一字型钢板(1)的中部在宽度方向两侧分别设有小块凸起,在FRP空心带肋型材(3)的中部也设置相对应的小块凹进。2. The anti-buckling support structure of FRP profiles according to claim 1, characterized in that, the middle part of the inline steel plate (1) is respectively provided with small protrusions on both sides in the width direction, and the FRP hollow ribbed profiles (3) The middle part is also provided with corresponding small block recesses.
CN 201320203336 2013-04-19 2013-04-19 Anti-buckling support structure adopting FRP (fiber reinforced plastic) profile Expired - Lifetime CN203213337U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103216023A (en) * 2013-04-19 2013-07-24 清华大学 Fiberglass-reinforced plastics (FRP) section bar buckling-resisting supporting structure
CN104746767A (en) * 2015-04-10 2015-07-01 南京工业大学 Maintenance-free buckling-free steel-composite material energy dissipation support

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103216023A (en) * 2013-04-19 2013-07-24 清华大学 Fiberglass-reinforced plastics (FRP) section bar buckling-resisting supporting structure
CN103216023B (en) * 2013-04-19 2016-02-10 清华大学 FRP section bar buckling-resistant support structure
CN104746767A (en) * 2015-04-10 2015-07-01 南京工业大学 Maintenance-free buckling-free steel-composite material energy dissipation support

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Granted publication date: 20130925

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