High-strength fiber composite metal damper

Abstract

The present invention relates to a high-strength fiber composite metal damper, comprising: a shear plate; a pair of connecting plates arranged in parallel and opposite to each other, fixed vertically to the upper and lower opposite ends of the shear plate, the connecting plates being connected to a building structure; a stiffening structure, fixed vertically to one side of the shear plate to form a fixing seam, the two ends of the stiffening structure being fixedly connected to the connecting plate; a carbon fiber strip, the width of which is greater than the width of the fixing seam, the carbon fiber strip being attached and fixed to the other side opposite to the shear plate and corresponding to the fixing seam. The carbon fiber strip and the fixing seam are respectively located on the opposite sides of the shear plate, which is convenient for attaching and replacing the carbon fiber strip. By sticking the carbon fiber strip, part of the stress on the shear plate can be decomposed onto the carbon fiber strip, which can reduce the stress level on the shear plate, thereby improving the ductility of the shear plate, thereby solving the problem that the weld between the stiffening structure and the shear plate easily causes the shear plate to become brittle and the ductility to decrease, and the stress concentration near the stiffening structure affects the effect of the metal damper.

Description

Technical Field

[0001] The invention relates to the field of dampers, in particular to a high-strength fiber composite metal damper. Background Art

[0002] Metal dampers are widely used in structural shock absorption technology. Metal dampers are displacement dampers that use the energy dissipated by friction within the crystal after metal yields. Metal dampers use low-yield point steel as shear plates, taking advantage of its low yield strength and good ductility. Compared with the main structure, it can enter yield earlier, thereby using the accumulated plastic deformation of soft steel after yielding to achieve the effect of dissipating seismic energy.

[0003] After the metal damper is equipped with transverse stiffening ribs and vertical stiffening ribs, the shear plate is divided into multiple small grids. According to the test, the location where the shear damper is damaged is generally around the welds between the transverse stiffening ribs, vertical stiffening ribs and the shear plate. The maximum stress point occurs at the weld between the stiffening ribs and the shear plate. Due to the influence of the welding weld on the shear plate, it is easy to cause the shear plate to become brittle and the ductility to decrease, affecting the effect of the metal damper. Summary of the invention

[0004] The purpose of the present invention is to overcome the defects of the prior art and provide a high-strength fiber composite metal damper to solve the problems in the prior art that the weld between the stiffening rib and the shear plate easily causes the shear plate to become brittle and the ductility to decrease, and the stress concentration near the stiffening rib affects the effect of the metal damper.

[0005] The technical solution to achieve the above purpose is:

[0006] The present invention provides a high-strength fiber composite metal damper, comprising:

[0007] Shear plate;

[0008] A pair of connecting plates arranged in parallel and opposite to each other are vertically fixed to the upper and lower opposite ends of the shear plate, and the connecting plates are used to connect to the building structure;

[0009] A stiffening structure is vertically fixed to one side of the shear plate to form a fixed seam, and two ends of the stiffening structure are fixedly connected to the connecting plate;

[0010] The carbon fiber strip has a width greater than that of the fixing seam, and the carbon fiber strip is attached and fixed to the other side surface opposite to the shear plate and corresponds to the fixing seam.

[0011] A further improvement of the high-strength fiber composite metal damper of the present invention is that it also includes:

[0012] A pair of flange plates arranged in parallel and opposite to each other are vertically fixed to the left and right opposite sides of the shear plate, and the flange plates are vertically fixed between the pair of connecting plates;

[0013] Both sides of the stiffening structure are fixedly connected to the flange plate.

[0014] A further improvement of the high-strength fiber composite metal damper of the present invention is that the stiffening structure comprises:

[0015] A vertical stiffening plate is vertically fixed to one side of the shear plate to form a vertical fixed seam, and opposite ends of the vertical stiffening plate are respectively vertically fixed to a pair of the connecting plates;

[0016] The transverse stiffening plate is horizontally fixed to one side of the shear plate to form a transverse fixed seam. The transverse stiffening plate is vertically fixed to the vertical stiffening plate, and both sides of the transverse stiffening plate are fixed to the flange plate.

[0017] A further improvement of the high-strength fiber composite metal damper of the present invention is that the carbon fiber strips include:

[0018] A carbon fiber vertical section, the width of which is greater than the width of the vertical fixing seam, is attached and fixed to the other side surface opposite to the shear plate and corresponds to the vertical fixing seam;

[0019] The carbon fiber transverse section has a width greater than the width of the transverse fixing seam, is attached and fixed to the other side surface opposite to the shear plate, and corresponds to the transverse fixing seam.

[0020] A further improvement of the high-strength fiber composite metal damper of the present invention is that the vertical stiffening plate is vertically fixed to the middle of one side of the shear plate.

[0021] A further improvement of the high-strength fiber composite metal damper of the present invention is that there are a plurality of transverse stiffening plates, which are fixed horizontally and at intervals on one side of the shear plate.

[0022] A further improvement of the high-strength fiber composite metal damper of the present invention is that the vertical stiffening plate and one side surface of the shear plate are fixed by welding to form the vertical fixing seam;

[0023] The transverse stiffening plate and one side surface of the shear plate are fixed by welding to form the transverse fixing seam.

[0024] Beneficial effects of the high-strength fiber composite metal damper of the present invention:

[0025] The present invention adheres the carbon fiber strip to the other side of the shear plate, and the carbon fiber strip covers a certain range around the fixed seam on one side of the shear plate. The carbon fiber strip and the fixed seam are respectively located on opposite sides of the shear plate, which is convenient for attaching and replacing the carbon fiber strip. Carbon fiber is a high-strength and high-modulus fiber, and has high strength and modulus along the fiber axis. The carbon fiber strip has high strength. By adhering the carbon fiber strip, part of the stress on the shear plate can be decomposed to the carbon fiber strip, which can reduce the stress level on the shear plate, thereby improving the ductility of the shear plate, thereby solving the problem that the weld between the stiffening structure and the shear plate easily causes the shear plate to become brittle and the ductility to decrease, thereby affecting the effect of the metal damper. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a front view of the high-strength fiber composite metal damper of the present invention.

[0027] Figure 2 It is a side view of the high-strength fiber composite metal damper of the present invention.

[0028] Figure 3 It is a top view of the high-strength fiber composite metal damper of the present invention. DETAILED DESCRIPTION

[0029] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0030] See also Figure 1 , showing the front view of the high-strength fiber composite metal damper of the present invention. Figure 2 It is a side view of the high-strength fiber composite metal damper of the present invention. Figure 3 This is a top view of the high-strength fiber composite metal damper of the present invention. Figures 1 to 3 As shown, the high-strength fiber composite metal damper of the present invention comprises:

[0031] Shear plate 10;

[0032] A pair of connecting plates 20 arranged in parallel and opposite to each other are vertically fixed to the upper and lower opposite ends of the shear plate 10, and the connecting plates 20 are used to connect to the building structure;

[0033] The stiffening structure 30 is vertically fixed to one side of the shear plate 10 to form a fixed seam, and both ends of the stiffening structure 30 are fixedly connected to the connecting plate 20;

[0034] The carbon fiber strip 40 has a width greater than that of the fixing seam. The carbon fiber strip 40 is attached and fixed to the other side surface opposite to the shear plate 10 and corresponds to the fixing seam.

[0035] Specifically, the stiffening structure 30 is welded to one side of the shear plate 10. However, the weld between the stiffening structure 30 and the shear plate 10 may easily cause the shear plate 10 to become brittle and reduce ductility, thus affecting the effect of the metal damper.

[0036] Carbon fiber is a fiber with a diameter of about 5-10 microns, mainly composed of carbon atoms. Carbon fiber has 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 with high strength and modulus along the fiber axis.

[0037] The carbon fiber strip 40 is pasted on the other side of the shear plate 10, and the carbon fiber strip 40 covers a certain range around the fixing seam on one side of the shear plate. The carbon fiber strip 40 and the fixing seam are located on opposite sides of the shear plate 10, respectively, so as to facilitate the installation and replacement of the carbon fiber strip 40. 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.

[0038] Since the carbon fiber strips 40 have relatively high strength, part of the stress on the shear plate 10 can be decomposed onto the carbon fiber strips 40 by sticking the carbon fiber strips 40, which can reduce the stress level on the shear plate 10, thereby improving the ductility of the shear plate 10, thereby solving the problem that the weld between the stiffening structure 30 and the shear plate 10 easily causes the shear plate 10 to become brittle and the ductility to decrease, and the stress concentration near the stiffening structure affects the effect of the metal damper.

[0039] As a preferred embodiment of the high-strength fiber composite metal damper of the present invention, it also includes: a pair of flange plates 50 arranged parallel to each other, vertically fixed to the left and right opposite sides of the shear plate 10, and the flange plates 50 are vertically fixed between a pair of connecting plates 20; the two sides of the stiffening structure 30 are fixedly connected to the flange plates 50. Figure 3 As shown, the flange plate 50 is smaller than the connecting plate 20. The middle and shear plates 10 of the flange plate 50 are fixed vertically.

[0040] As a preferred embodiment of the high-strength fiber composite metal damper of the present invention, the stiffening structure 30 includes: a vertical stiffening plate 31, which is vertically fixed to one side of the shear plate 10 to form a vertical fixed seam, and the opposite ends of the vertical stiffening plate 31 are respectively vertically fixed to a pair of connecting plates 20; a transverse stiffening plate 32, which is horizontally fixed to one side of the shear plate 10 to form a transverse fixed seam, the transverse stiffening plate 32 is vertically fixed to the vertical stiffening plate 31, and the two sides of the transverse stiffening plate 32 are fixed to the flange plate 50.

[0041] The stiffening structure 30 includes a vertical stiffening plate 31 and a transverse stiffening plate 32. The metal damper of the present invention is provided with transverse stiffening ribs 32 and vertical stiffening ribs 31, so that the shear plate 10 is divided into a plurality of small cells. The stiffening structure 30 enhances the performance of the metal damper.

[0042] As a preferred embodiment of the high-strength fiber composite metal damper of the present invention, the carbon fiber strip 40 includes: a carbon fiber vertical segment 41, the width of which is greater than the width of the vertical fixing seam, which is attached and fixed to the other side opposite to the shear plate 10 and corresponds to the vertical fixing seam; a carbon fiber transverse segment 42, the width of which is greater than the width of the transverse fixing seam, which is attached and fixed to the other side opposite to the shear plate 10 and corresponds to the transverse fixing seam.

[0043] Furthermore, the upper and lower ends of the carbon fiber vertical section 41 are respectively connected to a pair of connecting plates 2. The left and right sides of the carbon fiber transverse section 42 are respectively connected to a pair of flange plates 50.

[0044] Specifically, the width of the carbon fiber vertical section 41 is greater than the width of the vertical fixing seam, and the length of the carbon fiber vertical section 41 is adapted to the length of the vertical fixing seam. The width of the carbon fiber transverse section 42 is greater than the width of the transverse fixing seam, and the length of the carbon fiber transverse section 42 is adapted to the length of the transverse fixing seam. The specific size is determined according to actual needs.

[0045] Furthermore, the carbon fiber strips and the fixing seams are respectively located on opposite sides of the shear plate 10, so as to facilitate the installation and replacement of the carbon fiber strips.

[0046] As a preferred embodiment of the high-strength fiber composite metal damper of the present invention, the vertical stiffening plate 31 is vertically fixed to the middle of one side of the shear plate 10 .

[0047] As a preferred embodiment of the high-strength fiber composite metal damper of the present invention, there are multiple transverse stiffening plates 32 which are fixed horizontally and at intervals on one side of the shear plate 10 .

[0048] As a preferred embodiment of the high-strength fiber composite metal damper of the present invention, the vertical stiffening plate 31 and one side of the shear plate 10 are fixed by welding to form a vertical fixed seam; the transverse stiffening plate 32 and one side of the shear plate 10 are fixed by welding to form a transverse fixed seam.

[0049] Specifically, a pair of transverse stiffening plates 32 are welded and fixed to the vertical stiffening plates 31 from opposite sides of the vertical stiffening plates 31 . The pair of transverse stiffening plates 32 are located on the same horizontal line and are symmetrically arranged relative to the vertical stiffening plates 31 .

[0050] In this embodiment, one vertical stiffening plate 31 is provided and fixed at the middle position of the shear plate 10 . Three transverse stiffening plates 32 are provided and spaced apart along the height direction of the shear plate 10 .

[0051] In this embodiment, the transverse stiffening plate 32, the vertical stiffening plate 31, the shear plate 10, and the connecting plate 20 are all metal plates. When in use, the connecting plate 20 is installed and connected to the building structure, so that the high-strength fiber composite metal damper of the present invention is installed and connected to the building structure.

[0052] The beneficial effects of the high-strength fiber composite metal damper of the present invention are:

[0053] The present invention adheres a carbon fiber strip to the other side of the shear plate, and the carbon fiber strip covers a certain range around the fixed seam on one side of the shear plate. The carbon fiber strip and the fixed seam are respectively located on opposite sides of the shear plate, which is convenient for attaching and replacing the carbon fiber strip. Carbon fiber is a high-strength and high-modulus fiber with high strength and modulus along the fiber axis. The carbon fiber strip has high strength. By adhering the carbon fiber strip, part of the stress on the shear plate can be decomposed to the carbon fiber strip, which can reduce the stress level on the shear plate, thereby improving the ductility of the shear plate, thereby solving the problem that the weld between the stiffening structure and the shear plate easily causes the shear plate to become brittle and the ductility to decrease, and the stress concentration near the stiffening structure affects the effect of the metal damper.

[0054] The present invention is described in detail above in conjunction with the embodiments of the accompanying drawings. A person skilled in the art can make various variations of the present invention according to the above description. Therefore, certain details in the embodiments should not constitute a limitation of the present invention, and the scope of protection of the present invention shall be defined by the scope of the attached claims.

Claims

1. A high-strength fiber composite metal damper, characterized in that: include: Shear plate; A pair of connecting plates arranged in parallel and opposite to each other are vertically fixed to the upper and lower opposite ends of the shear plate, and the connecting plates are used to connect to the building structure; A stiffening structure is vertically fixed to one side of the shear plate to form a fixed seam, and two ends of the stiffening structure are fixedly connected to the connecting plate; The carbon fiber strip has a width greater than that of the fixing seam, and the carbon fiber strip is attached and fixed to the other side surface opposite to the shear plate and corresponds to the fixing seam.

2. The high-strength fiber composite metal damper according to claim 1, characterized in that: Also includes: A pair of flange plates arranged in parallel and opposite to each other are vertically fixed to the left and right opposite sides of the shear plate, and the flange plates are vertically fixed between the pair of connecting plates; Both sides of the stiffening structure are fixedly connected to the flange plate.

3. The high-strength fiber composite metal damper according to claim 2, characterized in that: The stiffening structure comprises: A vertical stiffening plate is vertically fixed to one side of the shear plate to form a vertical fixed seam, and opposite ends of the vertical stiffening plate are respectively vertically fixed to a pair of the connecting plates; The transverse stiffening plate is horizontally fixed to one side of the shear plate to form a transverse fixed seam. The transverse stiffening plate is vertically fixed to the vertical stiffening plate, and both sides of the transverse stiffening plate are fixed to the flange plate.

4. The high-strength fiber composite metal damper according to claim 3, characterized in that: The carbon fiber strip comprises: A carbon fiber vertical section, the width of which is greater than the width of the vertical fixing seam, is attached and fixed to the other side surface opposite to the shear plate and corresponds to the vertical fixing seam; The carbon fiber transverse section has a width greater than the width of the transverse fixing seam, is attached and fixed to the other side surface opposite to the shear plate, and corresponds to the transverse fixing seam.

5. The high-strength fiber composite metal damper according to claim 3, characterized in that: The vertical stiffening plate is vertically fixed to the middle of one side surface of the shear plate.

6. The high-strength fiber composite metal damper according to claim 3, characterized in that: There are a plurality of transverse stiffening plates, which are fixed horizontally and at intervals on one side of the shear plate.

7. The high-strength fiber composite metal damper according to claim 3, characterized in that: The vertical stiffening plate and one side surface of the shear plate are fixed by welding to form the vertical fixing seam; The transverse stiffening plate and one side surface of the shear plate are fixed by welding to form the transverse fixing seam.

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