阅读说明：本技术 高强纤维复合型金属阻尼器 (High-strength fiber composite metal damper ) 是由 戴轶苏 邓文艳 张煜 彪仿俊 于 2021-09-26 设计创作，主要内容包括：本发明涉及一种高强纤维复合型金属阻尼器,包括：剪切板；平行相对设置的一对连接板,垂直固定于剪切板的上下相对两端,连接板供和建筑结构连接；加劲结构,垂直固定于剪切板的一侧面,形成固定缝,加劲结构的两端和连接板固接；碳纤维条,宽度大于固定缝的宽度,碳纤维条贴设固定于剪切板相对的另一侧面,且对应于固定缝。碳纤维条和固定缝分别位于剪切板的相对两侧,方便贴设和更换碳纤维条。通过黏贴碳纤维条可将剪切板上部分应力分解到碳纤维条上,可降低剪切板上的应力水平,从而提高剪切板的延性,从而解决了加劲结构和剪切板的焊缝处易导致剪切板变脆而延性下降加劲结构附近应力集中,影响金属阻尼器的效果的问题。(The invention relates to a high-strength fiber composite metal damper, which comprises: a shear plate; a pair of connecting plates which are oppositely arranged in parallel and vertically fixed at the upper and lower opposite ends of the shear plate, wherein the connecting plates are used for connecting with a building structure; the stiffening structure is vertically fixed on one side surface of the shearing plate to form a fixed seam, and two ends of the stiffening structure are fixedly connected with the connecting plate; the width of the carbon fiber strip is larger than that of the fixing seam, and the carbon fiber strip is attached to the other side face, opposite to the shearing plate, of the shearing plate and corresponds to the fixing seam. The carbon fiber strips and the fixed seams are respectively located on two opposite sides of the shear plate, and the carbon fiber strips are conveniently attached and replaced. The stress of the upper part of the shear plate can be decomposed to the carbon fiber strips by pasting the carbon fiber strips, so that the stress level on the shear plate can be reduced, the ductility of the shear plate is improved, and the problems that the shear plate is fragile, the stress concentration near the ductility reduction stiffening structure is easy to cause at the welding seam of the stiffening structure and the shear plate, and the effect of the metal damper is influenced are solved.)

1. A high-strength fiber composite metal damper is characterized by comprising:

a shear plate;

the pair of connecting plates are oppositely arranged in parallel and are vertically fixed at the upper end and the lower end of the shear plate, and the connecting plates are connected with a building structure;

the stiffening structure is vertically fixed on one side surface of the shear plate to form a fixed seam, and two ends of the stiffening structure are fixedly connected with the connecting plate;

the width of the carbon fiber strip is larger than that of the fixing seam, the carbon fiber strip is attached to and fixed on the opposite other side face of the shear plate, and the carbon fiber strip corresponds to the fixing seam.

2. The high strength fiber composite metal damper according to claim 1, further comprising:

the pair of flange plates are oppositely arranged in parallel and are vertically fixed on the left side and the right side of the shear plate, and the flange plates are vertically fixed between the pair of connecting plates;

and two sides of the stiffening structure are fixedly connected with the flange plates.

3. The high strength fiber composite metal damper according to claim 2, wherein the stiffening structure comprises:

the vertical stiffening plate is vertically fixed on one side surface of the shearing plate to form a vertical fixing seam, and two opposite ends of the vertical stiffening plate are respectively and vertically and fixedly connected with the pair of connecting plates;

and the transverse stiffening plate is horizontally fixed on one side surface of the shearing plate to form a transverse fixing seam, the transverse stiffening plate is vertically and fixedly connected with the vertical stiffening plate, and two sides of the transverse stiffening plate are fixedly connected with the flange plates.

4. The high strength fiber composite metal damper according to claim 3, wherein the carbon fiber strip includes:

the width of the carbon fiber vertical section is larger than that of the vertical fixing seam, and the carbon fiber vertical section is attached to the other side face, opposite to the shear plate, of the shear plate and corresponds to the vertical fixing seam;

the width of the transverse carbon fiber section is larger than that of the transverse fixing seam, and the transverse carbon fiber section is attached to the other side face, opposite to the shearing plate, of the transverse fixing seam and corresponds to the transverse fixing seam.

5. The high strength fiber composite metal damper according to claim 3, wherein the vertical stiffener is vertically fixed to a middle of one side surface of the shear plate.

6. The high strength fiber composite metal damper according to claim 3, wherein a plurality of the transverse stiffener plates are horizontally and intermittently fixed to one side surface of the shear plate.

7. The high strength fiber composite type metal damper according to claim 3,

the vertical stiffening plate and one side face of the shear plate are fixed by welding to form the vertical fixing seam;

and the transverse stiffening plate and one side surface of the shear plate are fixed by welding to form the transverse fixing seam.

Technical Field

The invention relates to the field of dampers, in particular to a high-strength fiber composite metal damper.

Background

Metal dampers are widely used in structural damping technology. The metal damper is a displacement type damper, and energy is consumed through internal friction of crystals after metal yields. The metal damper takes low-yield-point steel as a shear plate, and can be subjected to yielding earlier than a main body structure by utilizing the advantages of low yield strength, good ductility and the like, so that the effect of dissipating seismic energy can be achieved by utilizing the accumulated plastic deformation of the soft steel after yielding.

The metal damper is provided with transverse stiffening ribs, and after the vertical stiffening ribs, the shear plate is separated into a plurality of cell lattices. Tests prove that the position of the shear damper which is damaged is generally the position around the welding seam of the transverse stiffening rib, the vertical stiffening rib and the shear plate. The point of maximum stress occurs at the weld of the stiffener to the shear plate. Due to the influence of the welding seam on the shear plate, the shear plate is easy to become brittle and the ductility is reduced, so that the effect of the metal damper is influenced.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provide a high-strength fiber composite metal damper to solve the problems that in the prior art, the welding seam between a stiffening rib and a shear plate is easy to cause the shear plate to become brittle and the ductility of the shear plate to be reduced, and the effect of the metal damper is influenced by the stress concentration near the stiffening rib.

The technical scheme for realizing the purpose is as follows:

the invention provides a high-strength fiber composite metal damper, which comprises:

a shear plate;

the pair of connecting plates are oppositely arranged in parallel and are vertically fixed at the upper end and the lower end of the shear plate, and the connecting plates are connected with a building structure;

the stiffening structure is vertically fixed on one side surface of the shear plate to form a fixed seam, and two ends of the stiffening structure are fixedly connected with the connecting plate;

the width of the carbon fiber strip is larger than that of the fixing seam, the carbon fiber strip is attached to and fixed on the opposite other side face of the shear plate, and the carbon fiber strip corresponds to the fixing seam.

The further improvement of the high-strength fiber composite metal damper is that the high-strength fiber composite metal damper further comprises:

the pair of flange plates are oppositely arranged in parallel and are vertically fixed on the left side and the right side of the shear plate, and the flange plates are vertically fixed between the pair of connecting plates;

and two sides of the stiffening structure are fixedly connected with the flange plates.

The invention further improves the high-strength fiber composite metal damper, wherein the stiffening structure comprises:

the vertical stiffening plate is vertically fixed on one side surface of the shearing plate to form a vertical fixing seam, and two opposite ends of the vertical stiffening plate are respectively and vertically and fixedly connected with the pair of connecting plates;

and the transverse stiffening plate is horizontally fixed on one side surface of the shearing plate to form a transverse fixing seam, the transverse stiffening plate is vertically and fixedly connected with the vertical stiffening plate, and two sides of the transverse stiffening plate are fixedly connected with the flange plates.

The further improvement of the high-strength fiber composite metal damper is that the carbon fiber strip comprises:

the width of the carbon fiber vertical section is larger than that of the vertical fixing seam, and the carbon fiber vertical section is attached to the other side face, opposite to the shear plate, of the shear plate and corresponds to the vertical fixing seam;

the width of the transverse carbon fiber section is larger than that of the transverse fixing seam, and the transverse carbon fiber section is attached to the other side face, opposite to the shearing plate, of the transverse fixing seam and corresponds to the transverse fixing seam.

The high-strength fiber composite metal damper is further improved in that the vertical stiffening plate is vertically fixed in the middle of one side face of the shear plate.

The high-strength fiber composite metal damper is further improved in that a plurality of transverse stiffening plates are horizontally fixed on one side surface of the shear plate at intervals.

The high-strength fiber composite metal damper is further improved in that the vertical stiffening plate and one side surface of the shear plate are fixed by welding to form the vertical fixing seam;

and the transverse stiffening plate and one side surface of the shear plate are fixed by welding to form the transverse fixing seam.

The high-strength fiber composite metal damper has the beneficial effects that:

according to the invention, the carbon fiber strip is adhered to the other side surface of the shearing plate, and the carbon fiber strip correspondingly covers the periphery of the fixed seam on one side surface of the shearing plate within a certain range. The carbon fiber strips and the fixed seams are respectively located on two opposite sides of the shear plate, and the carbon fiber strips are conveniently attached and replaced. Carbon fiber is a high-strength high-modulus fiber, and has high strength and modulus along the fiber axis direction. The carbon fiber strip has higher intensity, and can decompose the partial stress on the shear plate to the carbon fiber strip through pasting the carbon fiber strip, can reduce the stress level on the shear plate to improve the ductility of shear plate, thereby solved stiffening structure and shear plate's welding seam department and easily lead to the shear plate to become fragile and the ductility descends, influences the problem of metal damper's effect.

Drawings

Fig. 1 is a front view of the high strength fiber composite type metal damper of the present invention.

Fig. 2 is a side view of the high strength fiber composite type metal damper of the present invention.

Fig. 3 is a top view of the high-strength fiber composite metal damper of the present invention.

Detailed Description

The invention is further described with reference to the following figures and specific examples.

Referring to fig. 1, a front view of the high strength fiber composite type metal damper of the present invention is shown. Fig. 2 is a side view of the high strength fiber composite type metal damper of the present invention. Fig. 3 is a top view of the high-strength fiber composite metal damper of the present invention. Referring to fig. 1 to 3, the high-strength fiber composite metal damper of the present invention includes:

a shear plate 10;

a pair of connecting plates 20 which are oppositely arranged in parallel and are vertically fixed at the upper and lower opposite ends of the shear plate 10, and the connecting plates 20 are used for connecting with a building structure;

the stiffening structure 30 is vertically fixed on one side surface of the shear plate 10 to form a fixed seam, and two ends of the stiffening structure 30 are fixedly connected with the connecting plate 20;

the width of the carbon fiber strip 40 is larger than that of the fixing seam, and the carbon fiber strip 40 is attached to and fixed on the other opposite side surface of the shear plate 10 and corresponds to the fixing seam.

Specifically, the stiffening structure 30 and one side surface of the shear plate 10 are welded and fixed. The weld between the stiffening structure 30 and the shear plate 10 is likely to cause the shear plate 10 to become brittle and have reduced ductility, which affects the performance of the metal damper.

Carbon fibers are fibers having a diameter of about 5 to 10 microns and are composed primarily of carbon atoms. Carbon fibers have several advantages, including high stiffness, high tensile strength, low weight, high chemical resistance, high temperature resistance, and low thermal expansion. Carbon fiber is a high-strength high-modulus fiber, and has high strength and modulus along the fiber axis.

And adhering the carbon fiber strip 40 to the other side surface of the shear plate 10, wherein the carbon fiber strip 40 correspondingly covers the periphery of the fixed seam on one side surface of the shear plate within a certain range. The carbon fiber strips 40 and the fixing seams are respectively located on two opposite sides of the shear plate 10, so that the carbon fiber strips 40 are conveniently attached and replaced. The width of the carbon fiber strip 40 is greater than the width of the fixing seam, and the length of the carbon fiber strip 40 is adapted to the length of the fixing seam.

Because the carbon fiber strips 40 have high strength, partial stress on the shear plate 10 can be decomposed to the carbon fiber strips 40 by adhering the carbon fiber strips 40, so that the stress level on the shear plate 10 can be reduced, the ductility of the shear plate 10 is improved, and the problems that the shear plate 10 is fragile and the ductility is reduced, stress concentration near a stiffening structure is caused and the effect of a metal damper is influenced due to the fact that the welding seams of the stiffening structure 30 and the shear plate 10 are easily solved.

As a preferred embodiment of the high-strength fiber composite metal damper of the present invention, the high-strength fiber composite metal damper further includes: a pair of flange plates 50 which are oppositely arranged in parallel and vertically fixed at the left and right opposite sides of the shear plate 10, wherein the flange plates 50 are vertically fixed between the pair of connecting plates 20; the stiffening structure 30 is secured on both sides to the flange plate 50. As shown in connection with fig. 3, the flange plate 50 is smaller in size than the connecting plate 20. The middle of the flange plate 50 is fixed vertically to the shear plate 10.

As a preferred embodiment of the high-strength fiber composite metal damper of the present invention, the stiffening structure 30 includes: the vertical stiffening plate 31 is vertically fixed on one side surface of the shearing plate 10 to form a vertical fixing seam, and two opposite ends of the vertical stiffening plate 31 are respectively and vertically fixedly connected with the pair of connecting plates 20; the transverse stiffening plate 32 is horizontally fixed on one side surface of the shearing plate 10 to form a transverse fixing seam, the transverse stiffening plate 32 is vertically and fixedly connected with the vertical stiffening plate 31, and two sides of the transverse stiffening plate 32 are fixedly connected with the flange plates 50.

The stiffening structure 30 comprises vertical stiffening plates 31 and transverse stiffening plates 32. The metal damper of the present invention has the shear plate 10 divided into a plurality of cells by the provision of the transverse stiffeners 32 and the vertical stiffeners 31. The performance of the metal damper is enhanced by the stiffening structure 30.

As a preferred embodiment of the high-strength fiber composite metal damper of the present invention, the carbon fiber strip 40 includes: the width of the carbon fiber vertical section 41 is larger than that of the vertical fixing seam, and the carbon fiber vertical section is attached to and fixed on the other opposite side surface of the shear plate 10 and corresponds to the vertical fixing seam; the width of the carbon fiber transverse section 42 is larger than that of the transverse fixing seam, and the carbon fiber transverse section is attached to the other opposite side surface of the shear plate 10 and corresponds to the transverse fixing seam.

Further, the upper and lower ends of the carbon fiber vertical section 41 are respectively connected with the pair of connecting plates 2. The left and right sides of the carbon fiber transverse section 42 are connected to a pair of flange plates 50, respectively.

Specifically, the width of the carbon fiber vertical section 41 is greater than the width of the vertical fixing slit, and the length of the carbon fiber vertical section 41 is adapted to the length of the vertical fixing slit. The width of the transverse section 42 of carbon fibres is greater than the width of the transverse fixing slot, the length of the transverse section 42 of carbon fibres being adapted to the length of the transverse fixing slot. The specific size is determined according to actual needs.

Further, carbon fiber strips and fixed joints are respectively located on two opposite sides of the shear plate 10, so that the carbon fiber strips are conveniently attached and replaced.

As a preferred embodiment of the high-strength fiber composite metal damper of the present invention, the vertical stiffener plate 31 is vertically fixed in the middle of one side surface of the shear plate 10.

As a preferred embodiment of the high-strength fiber composite metal damper of the present invention, a plurality of transverse stiffener plates 32 are horizontally and alternately fixed to one side surface of the shear plate 10.

As a preferred embodiment of the high-strength fiber composite metal damper of the present invention, the vertical stiffener plate 31 and one side surface of the shear plate 10 are fixed by welding to form a vertical fixing seam; the transverse stiffener 32 and one side of the shear plate 10 are fixed by welding to form a transverse fixing seam.

Specifically, a pair of horizontal stiffening plates 32 are welded and fixed to the vertical stiffening plates 31 from opposite sides of the vertical stiffening plates 31, and the pair of horizontal stiffening plates 32 are located on the same horizontal line and symmetrically arranged with respect to the vertical stiffening plates 31.

In this embodiment, one vertical stiffener plate 31 is provided and fixed to the shear plate 10 at a middle position. Three transverse stiffener plates 32 are provided at intervals in the height direction of the shear plate 10.

In the present embodiment, the transverse stiffener plates 32, the vertical stiffener plates 31, the shear plates 10, and the connecting plates 20 are all metal plates. When in use, the connecting plate 20 is installed and connected with a building structure, so that the high-strength fiber composite metal damper is installed and connected with the building structure.

The high-strength fiber composite metal damper has the beneficial effects that:

according to the invention, the carbon fiber strip is adhered to the other side surface of the shearing plate, and the carbon fiber strip correspondingly covers the periphery of the fixed seam on one side surface of the shearing plate within a certain range. The carbon fiber strips and the fixed seams are respectively located on two opposite sides of the shear plate, and the carbon fiber strips are conveniently attached and replaced. Carbon fiber is a high-strength high-modulus fiber, and has high strength and modulus along the fiber axis. The carbon fiber strip has higher intensity, and can decompose the partial stress on the shear plate to the carbon fiber strip through pasting the carbon fiber strip, can reduce the stress level on the shear plate to improve the ductility of shear plate, thereby solved stiffening structure and shear plate's welding seam department easily lead to the shear plate to become fragile and ductility decline and nearby stress concentration of stiffening structure, influence the problem of metal damper's effect.

While the present invention has been described in detail and with reference to the embodiments thereof as illustrated in the accompanying drawings, it will be apparent to one skilled in the art that various changes and modifications can be made therein. Therefore, certain details of the embodiments are not to be interpreted as limiting, and the scope of the invention is to be determined by the appended claims.