A prestressed tendon self-centering torsional energy dissipation support member

Abstract

The present application relates to a kind of prestressed tendon self-resetting torsional energy dissipation support components, including two groups of bracing bars, each group of bracing bars includes the bracing bar of gear meshing with misplacement and middle overlap, one bracing bar in each group of bracing bars is connected with support connector, the other bracing bar is connected with support connector, the end of bracing bar not connected with support connector is sleeved with bracing bar sleeve, and the corresponding position of bracing bar and bracing bar sleeve is mutually sleeved with the limiting slot of adaptation, prestressed tendon end column is inserted in limiting slot, prestressed tendon is inserted between adjacent prestressed tendon end column, torsional steel pipe connected with gear through rotating disc is arranged between two groups of bracing bars, bracing bar and bracing bar sleeve move towards or away from each other, prestressed tendon end column is constrained by limiting slot, prestressed tendon will be tensioned and energy dissipation and generate reset force, the rotating direction of gear on the opposite side is opposite, drive torsional steel pipe to occur torsion, and the metal deformation of torsional steel pipe dissipates energy.

Description

Technical Field

[0001] This invention belongs to the field of energy dissipation and vibration reduction technology, and relates to a prestressed tendon self-resetting torsional energy dissipation support component. Background Technology

[0002] While casualties from recent strong earthquakes have decreased, and seismically designed structures have achieved the goal of remaining intact even under major earthquakes, excessive residual deformation after an earthquake disrupts the building's functionality and incurs high maintenance costs. Studies show that when the residual inter-story drift angle exceeds 0.5% after an earthquake, repair costs will exceed reconstruction costs. Self-setting bracing can achieve near-zero residual deformation after an earthquake and allow the building to regain its functionality without repair.

[0003] The yield energy dissipation area of ​​existing metal dampers is too concentrated, often only concentrated in a certain area, which cannot fully utilize the energy dissipation capacity of metal materials, and the energy dissipation form is singular. At the same time, few metal dampers have the ability to reset. Summary of the Invention

[0004] In view of this, in order to solve the problems of existing support components having a single energy dissipation form, poor energy dissipation effect and lack of reset performance, the present invention provides a prestressed tendon self-resetting torsional energy dissipation support component.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A prestressed tendon self-resetting torsional energy dissipation support component includes two sets of parallel strut pairs. Each set of strut pairs includes two struts that are staggered along their length and have several gears meshing at their overlapping points. One strut in each set has a support connector fixedly connected to its left end, and the other strut has a support connector fixedly connected to its right end. The end of the strut not connected to the support connector is sleeved with a strut sleeve whose end is fixed to the corresponding support connector. The struts and strut sleeves are interlocked with each other, and each corresponding position has an even number of matching limiting grooves. A prestressed tendon end post is inserted into the limiting groove, and a prestressed tendon is inserted between adjacent prestressed tendon end posts. A rotating disk is engaged with the gear transmission, and a torsion steel pipe is provided between the two sets of strut pairs and is fixedly connected to the gear through the rotating disk.

[0007] The beneficial effects of this basic scheme are as follows: After being subjected to vibration, the strut and strut sleeve move towards or away from each other, and the corresponding limiting grooves on the strut and strut sleeve are misaligned. The prestressed tendon end columns are constrained by the limiting grooves, thereby increasing the spacing between the prestressed tendon end columns. The prestressed tendons will be further subjected to tension to dissipate energy and generate a restoring force. At the same time, the rotation of the gear drives the rotating disk to rotate. The gears on opposite sides rotate in opposite directions, and the torsion steel pipes fixedly connected to the rotating disk are torsioned. The metal deformation of multiple torsion steel pipes dissipates energy. The energy dissipation through the torsion steel pipes and prestressed tendons is diverse, resulting in good energy dissipation and vibration reduction effects.

[0008] Furthermore, a rack that meshes with a gear is provided along the length of the middle of the strut.

[0009] Furthermore, the limiting groove is waist-shaped, and the two ends of the prestressed tendon end column are adapted to the curvature of the limiting groove, and the cross section along the length direction is dog bone shaped.

[0010] Furthermore, the length of the prestressed tendon end column is matched with the height of the strut sleeve.

[0011] Furthermore, the struts and strut sleeves fixedly connected to the same support connector are centrally symmetrical.

[0012] Furthermore, the rotating discs mentioned above are fixed at both ends of the twisted steel pipe. The rotating discs include a circular disc surface and a limiting core column that is concentrically fixed to the circular disc surface.

[0013] Furthermore, the inner wall of the gear is provided with a insertion groove, and the limiting core includes an inner core and an outer core with a diameter smaller than that of the inner core. The outer core has a protrusion on its outer wall that matches the insertion groove on the inner wall of the gear.

[0014] Furthermore, the strut and the strut sleeve are connected to the same outer sleeve. The outer sleeve has a positioning hole that matches the tail end of the rotating disc limiting core column. The height of the protrusion on the outer wall of the outer column is less than the difference in radius between the inner and outer columns. The tail end of the outer column is inserted into the positioning hole of the outer sleeve.

[0015] Furthermore, the height of the outer column's tail end is matched with the thickness of the outer sleeve. After the tail end of the outer column of the limiting core is inserted into the positioning hole of the outer sleeve, there are no protrusions on the surface of the outer sleeve.

[0016] Furthermore, the free end of the support connector is fitted with an end plate that is fixedly connected to the end of the outer sleeve, and the shape of the end plate is adapted to the shape of the end of the outer sleeve.

[0017] The beneficial effects of this invention are as follows:

[0018] 1. The prestressed tendon self-resetting torsional energy dissipation support component disclosed in this invention has a prestressed tendon end column that is snapped into a corresponding limiting groove in which the strut and strut sleeve are interlocked, and the end face is dog-bone shaped. After the main body of the support component is subjected to vibration, the strut and strut sleeve move towards or away from each other, and the corresponding limiting grooves on the strut and strut sleeve are misaligned. As the prestressed tendon end column is constrained by the limiting groove and the spacing increases, the prestressed tendon will be further subjected to tension and energy dissipation and generate a restoring force. In severe cases, the prestressed tendon may be broken. In this way, the prestressed tendon can be directly replaced, reducing the loss of energy dissipation components.

[0019] 2. The prestressed tendon self-resetting torsional energy dissipation support component disclosed in this invention, after the main body of the support component is subjected to vibration, the strut rack drives the gear to rotate, and the gears on opposite sides rotate in opposite directions. Since the torsion steel pipe is fixedly connected to the rotating disk, and the rotating disk is inserted and engaged with the gear, the torsion steel pipe is torsion. The metal deformation of multiple torsion steel pipes can also dissipate energy. Moreover, after the torsion steel pipe is damaged due to large vibration, the torsion steel pipe can be replaced to reduce the loss of energy dissipation components.

[0020] 3. The prestressed tendon self-resetting torsional energy dissipation support component disclosed in this invention has a centrally symmetrical strut and strut sleeve connected to the same support connector. After being subjected to vibration, the force is more stable, which enhances the service life of the support component.

[0021] Other advantages, objectives, and features of the invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination, or may be learned from practice of the invention. The objectives and other advantages of the invention can be realized and obtained through the following description. Attached Figure Description

[0022] To make the objectives, technical solutions, and advantages of the present invention clearer, the preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, wherein:

[0023] Figure 1 This is a structural schematic diagram of a prestressed tendon self-resetting torsional energy dissipation support member according to the present invention;

[0024] Figure 2 This is a cross-sectional view of a prestressed tendon self-resetting torsional energy dissipation support member according to the present invention;

[0025] Figure 3 This is a schematic diagram of the prestressed tendon self-resetting torsional energy dissipation support member of the present invention without the outer sleeve;

[0026] Figure 4 This is a schematic diagram of the outer sleeve in a prestressed tendon self-resetting torsional energy dissipation support member of the present invention;

[0027] Figure 5 This is a schematic diagram of the strut structure in a prestressed tendon self-resetting torsional energy dissipation support member of the present invention;

[0028] Figure 6 This is a schematic diagram of the strut sleeve in a prestressed tendon self-resetting torsional energy dissipation support member of the present invention;

[0029] Figure 7 This is a schematic diagram of the rotating disk in a prestressed tendon self-resetting torsional energy dissipation support component according to the present invention;

[0030] Figure 8 This is a schematic diagram of the gear structure in a prestressed tendon self-resetting torsional energy dissipation support member of the present invention;

[0031] Figure 9 This is a schematic diagram of the torsion steel pipe in a prestressed tendon self-resetting torsional energy dissipation support member of the present invention;

[0032] Figure 10 This is a schematic diagram of the prestressed tendon end column in a prestressed tendon self-resetting torsional energy dissipation support member of the present invention;

[0033] Figure 11 This is an assembly diagram of the prestressed tendons and prestressed tendon end columns in a prestressed tendon self-resetting torsional energy dissipation support member of the present invention;

[0034] Figure 12 This is a schematic diagram of the support connector in a prestressed tendon self-resetting torsional energy dissipation support member of the present invention;

[0035] Figure 13 This is a partial assembly view of the strut and strut sleeve and the support connector in a prestressed tendon self-resetting torsional energy dissipation support component of the present invention;

[0036] Figure 14 This is a detailed cross-sectional view of the self-resetting prestressed tendon in a prestressed tendon self-resetting torsional energy dissipation support member of the present invention.

[0037] Reference numerals: 1. Outer sleeve; 11. End plate; 12. Positioning hole; 2. Support rod; 21. Rack; 22. Limiting groove I; 3. Support rod sleeve; 31. Limiting groove II; 4. Rotating disk; 41. Limiting core column; 5. Torsion steel pipe; 6. Gear; 61. Insertion groove; 7. Prestressed tendon; 8. Prestressed tendon end column; 9. Support connector. Detailed Implementation

[0038] The following specific examples illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0039] The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual pictures. They should not be construed as limiting the invention. To better illustrate the embodiments of the invention, some parts in the drawings may be omitted, enlarged, or reduced, and do not represent the actual product dimensions. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0040] In the accompanying drawings of the embodiments of the present invention, the same or similar reference numerals correspond to the same or similar components. In the description of the present invention, it should be understood that if terms such as "upper," "lower," "left," "right," "front," and "rear" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting the present invention. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0041] like Figures 1-14 The prestressed tendon self-resetting torsional energy dissipation support component shown includes two sets of parallel strut pairs. Each strut pair includes two rectangular struts 2 that are staggered along the length direction and have several gears 6 meshing at their overlapping points. In each strut pair, the left end of one strut 2 is fixedly connected to a support connector 9, and the right end of the other strut 2 is fixedly connected to another support connector 9. The end of the strut 2 that is not connected to the support connector 9 is sleeved with a rectangular strut sleeve 3 whose end is fixed to the corresponding support connector 9. The struts 2 and strut sleeves 3 fixedly connected to the same support connector 9 are centrally symmetrical, which makes the force more stable after vibration and enhances the service life of the support component.

[0042] Reference Figure 5 , Figure 6 and Figure 13A rack 21, meshing with a gear 6, is provided along the length of the middle of the strut 2. The strut 2 and the strut sleeve 3 are respectively provided with matching, evenly paired, waist-shaped limiting grooves I 22 and II 31 at corresponding positions. Prestressing tendon end posts 8 are inserted into the limiting grooves I 22 and II 31. Prestressing tendons 7 are inserted between adjacent prestressing tendon end posts 8. A circular hole is provided in the middle of the prestressing tendon end post 8, through which the prestressing tendon 7 passes. To facilitate the fixing of the prestressing tendon 7, the upper and lower end faces of the circular hole in the middle of the prestressing tendon end post 8 are machined into rectangular planes. The length of the prestressing tendon end post 8 is matched with the height of the strut sleeve 3. The curvature of both ends of the prestressing tendon end post 8 is matched with that of the limiting grooves I 22 and II 31, and the cross-section along the length is dog-bone shaped. Figure 14 As shown.

[0043] A torsion steel pipe 5, coaxially fixedly connected to the gear 6 via a rotating disk 4, is installed between the two sets of support rods. Figure 7 The rotating disk 4 shown includes a circular disk surface and a limiting core 41 concentrically and fixedly connected to the circular disk surface, as shown in the figure. Figure 8 The gear 6 shown has an insertion groove 61 on its inner wall. The limiting core 41 includes an inner core and an outer core with a diameter smaller than the inner core. The inner core limits the axial distance between the rotating disk 4 and the gear 6. The outer core has a protrusion on its outer wall that matches the insertion groove 61 on the inner wall of the gear 6. The support rod 2 and the support rod sleeve 3 are fitted with the same outer sleeve 1. Figure 4 The outer sleeve shown has a positioning hole 12 that matches the tail end of the limiting core 41. The height of the protrusion on the outer wall of the outer column is less than the difference between the radii of the inner and outer columns. The tail end of the outer column is inserted into the positioning hole 12 of the outer sleeve 1. The height of the tail end of the outer column matches the thickness of the outer sleeve 1. After the tail end of the outer column of the limiting core 41 is inserted into the positioning hole 12 of the outer sleeve 1, there is no protrusion on the surface of the outer sleeve 1.

[0044] The free end of the support connector 9 is fitted with an end plate 11 that is fixedly connected to the end of the outer sleeve 1. The shape of the end plate 11 is adapted to the shape of the end of the outer sleeve 1.

[0045] When the prestressed tendon self-resetting torsional energy dissipation support is in operation, initially, the limiting grooves I 22 and II 31 are fully engaged. After vibration, the strut 2 and strut sleeve 3 move towards or away from each other, and the corresponding limiting grooves I 22 and II 31 on the strut 2 and strut sleeve 3 are misaligned. As the constraint distance between the prestressed tendon end column 8 and the limiting grooves I 22 and II 31 increases, the prestressed tendon 7 will be further subjected to tension to dissipate energy and generate a restoring force. In severe cases, the prestressed tendon 7 may be broken. In this case, the prestressed tendon 7 can be directly replaced, reducing the loss of energy dissipation components. In this case, the breakage of the prestressed tendon only causes the support to lose its self-resetting ability, but does not affect its reliability. The limiting constraint between the prestressed tendon end column and the limiting groove still exists, thus forming multiple lines of defense against earthquakes and increasing safety reserves. At the same time, after being vibrated, the rack 21 drives the gear 6 to rotate. The rotation direction of the gear 6 on the opposite side is opposite. Since the torsion steel pipe 5 is fixedly connected to the rotating disk 4, and the rotating disk 4 is inserted and engaged with the gear 6, the torsion steel pipe 5 is torsion. The metal deformation of multiple torsion steel pipes 5 can also dissipate energy. Moreover, after the torsion steel pipe 5 is damaged due to large vibration, the torsion steel pipe 5 can be replaced to reduce the loss of energy-consuming components.

[0046] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A pre-stressed tendon self-centering torsional energy dissipation bracing member, characterized by, The supporting rod pair includes two supporting rods which are lengthwise staggered and have a plurality of gears engaged at the middle overlapping portion, one of the supporting rods in each of the supporting rod pairs is fixedly connected with a supporting connecting piece at the left end, the other of the supporting rods in each of the supporting rod pairs is fixedly connected with a supporting connecting piece at the right end, one end of the supporting rod which is not connected with the supporting connecting piece is sleeved with a supporting rod sleeve which is fixed at the corresponding supporting connecting piece, the corresponding positions of the supporting rod and the supporting rod sleeve are both provided with an even number of limiting grooves which are matched, a prestressed tendon end column is inserted into the limiting groove, a prestressed tendon is inserted between the adjacent prestressed tendon end columns, and a torsion steel pipe which is coaxially fixedly connected with the gears is arranged between the two groups of supporting rod pairs. Both ends of the torsion steel pipe are fixedly connected with a rotating disc, the rotating disc includes a circular disc surface and a limiting core column which is concentrically fixedly connected with the circular disc surface, the inner wall of the gear is provided with an insertion groove, the limiting core column includes an inner layer column body and an outer layer column body which has a smaller diameter than the inner layer column body, the outer wall of the outer layer column body is provided with a protrusion which is matched with the insertion groove on the inner wall of the gear, the supporting rod and the supporting rod sleeve are sleeved with the same outer sleeve, the outer sleeve is provided with a positioning hole at the position opposite to the gear, the protrusion on the inner wall of the outer layer column body has a smaller height than the height of the outer layer column body, and the outer end of the outer layer column body is inserted into the positioning hole of the outer sleeve.

2. A pre-stressed tendon self-centering torsional energy dissipation bracing member as claimed in claim 1, wherein, The middle portion of the supporting rod is provided with a gear rack which is engaged with the gear along the length direction.

3. A pre-stressed tendon self-centering torsional energy dissipation bracing member as claimed in claim 1, wherein, The limiting groove is in the shape of a waist hole, the ends of the prestressed tendon end column are matched with the curvature of the limiting groove, and the length direction cross section is in the shape of a dog bone.

4. The pre-stressed tendon self-centering torsional energy dissipation bracing member of claim 1, wherein, The length of the prestressed tendon end column is matched with the height of the supporting rod sleeve.

5. A pre-stressed tendon self-centering torsional energy dissipation bracing member as claimed in claim 1, wherein, The supporting rod and the supporting rod sleeve which are fixedly connected with the same supporting connecting piece are centrally symmetrical.

6. A pre-stressed tendon self-centering torsional energy dissipation bracing member as recited in claim 1, wherein, The supporting connecting piece is in the shape of T and is sleeved with an end plate which is fixedly connected with the end of the outer sleeve, the shape of the end plate is matched with the shape of the end of the outer sleeve.

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