Structure of two-stage shear damper, adhesion node and assembly method

Abstract

To provide a structure of a two-stage shear damper, and an adhesion node.SOLUTION: The present invention relates to the technical field of architectural engineering, specifically to a structure of a two-stage shear damper with a total of six components: a first hinge point, a one-stage wedge link mechanism, a second hinge point, a two-stage wedge link mechanism, a third hinge point, and a fluid viscous damper, an adhesion node, and an assembly method. The two-stage wedge link mechanism is configured such that four small links of the same length are connected by hinges, and the device described in the present invention can restrain the node and release the bending restraint on the end of the rod member.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to the technical field of architectural engineering, and in particular to the structure and tight-fitting node of a dual-shear damper and the assembly method thereof. [Background technology]

[0002] As the characteristics of modern architectural structures, namely "high strength, light weight and flexibility," become more prominent, the need for vibration control of architectural structures under dynamic loads such as wind loads, strong earthquake effects, environmental and equipment excitation, and human-induced excitation, is becoming more and more evident. The stroke amplification device for shear-type dampers is considered to be one of the most reliable methods with the highest overall technical performance.

[0003] The shear damper (energy dissipator) has a wedge-shaped arrangement of "4 rods + 1 damper" as its basic configuration, which can be used to create a building structure with high-efficiency inter-storey displacement for the axial movement of the damper. However, the connection nodes of the shear damper building structure, the connection nodes between the internal components of the shear damper (SDJ), are commonly used pin-shaft hinge connections, and such connections have two major problems.

[0004] First, the connection does not have a strong restraining force against the "relative linear displacement" of the end of the link member. Specifically, due to the limitations of processing accuracy and installation accuracy, the pin shaft type hinge point currently used in the field of architectural structure has the characteristic that "the pin shaft diameter is smaller than the node plate hole diameter". When a tendency of relative linear displacement occurs between the ends of two or more components connected by the node, the node cannot effectively restrain the relative linear displacement between the components due to the gap between the pin shaft and the connecting plate. As a result, the deformation of the structure (most of it) is released and transmitted between the gap between the node pin shaft and the hole wall, and cannot be converted into the stroke deformation of the energy dissipator. Macroscopically, this phenomenon reflects that the energy dissipator and its connecting parts are insensitive to small vibration deformation of the architectural structure, and the vibration control efficiency of the structure is low.

[0005] Secondly, the node cannot completely release the bending constraint on the end of the rod member. Specifically, the contact between the pin shaft and the node plate is likely to generate a non-zero rotation start moment between them, which makes it difficult to ensure the axial tension / compression state of the energy dissipator (tension / compression bending state). Summary of the Invention

[0006] The present invention is presented to solve the problem that the shear-type damper connections in the above-mentioned prior art do not have a high restraining ability against the "relative linear displacement" of the link member ends, and the nodes cannot effectively release the bending restraint on the ends of the rod members.

[0007] SUMMARY OF THE PRESENT EMBODIMENT It is therefore an object of the present invention to provide a dual shear damper structure and a tightly coupled node.

[0008] In order to solve the above technical problems, the present invention provides the following technical solution: The structure and tight node of the two-stage shear damper includes a total of six components, including a first hinge point, a one-stage wedge link mechanism, a second hinge point, a two-stage wedge link mechanism, a third hinge point, and a fluid viscous damper, and the two-stage wedge link mechanism is composed of four small links of the same length connected by hinges.

[0009] As a preferred solution of the structure and tight node of the double shear damper of the present invention, the first hinge point includes an end node plate group and two first rolling wedge tight hinge points, the end node plate group includes two node plates that match the shape of the side wall of the first rolling wedge tight hinge point, an inclined cross-section hole connecting plate, and a number of reinforcing ribs, the two node plates are orthogonally welded to form an L-shaped node plate group, the inclined cross-section hole connecting plate is hingedly connected to the first rolling wedge tight hinge point, the reinforcing ribs are four, a large link is provided on the inclined cross-section hole connecting plate, and the four large links of the same length are combined to form a wedge-shaped link mechanism, and both ends of the four large links are respectively connected to the first hinge point and the second hinge point.

[0010] As a preferred solution of the structure and tight node of the dual shear damper of the present invention, the second hinge point includes a first rolling wedge tight hinge point and a second rolling wedge tight hinge point, the first rolling wedge tight hinge point is connected to a large link, and the second rolling wedge tight hinge point is connected to a small link.

[0011] As a preferred solution of the structure and tight node of the dual shear damper of the present invention, both ends of each of the miniature links are connected to the second hinge point and the third hinge point respectively.

[0012] As a preferred solution of the structure and tight node of the dual shear damper of the present invention, said third hinge point comprises two second rolling wedge tight hinge points and a lug connected to the fluid viscous damper.

[0013] As a preferred solution of the structure and tight node of the dual-shear damper of the present invention, both ends of the fluid viscous damper are respectively connected to a third hinge point.

[0014] As a preferred solution of the structure and tight node of the dual shear damper of the present invention, a first rolling wedge tight hinge point is provided on the first hinge point, the second hinge point and the third hinge point respectively.

[0015] As the preferred solution of the structure and tight node of the dual shear damper of the present invention, the first rolling wedge tight hinge point includes a pin shaft, a nut-washer combination, a rolling wedge, an inclined cross-section hole node plate and a conversion transmission plate.

[0016] In the preferred solution of the double shear damper structure and tight node of the present invention, the pin shaft is a steel cylinder with standard pre-threads on both ends, and the pin shaft connects each node plate in series, which are connected by the first rolling wedge tight hinge point.

[0017] As a preferred solution of the structure and tight node of the double shear damper of the present invention, the nut-washer combination includes a nut, a large washer, and a small washer, the nut is a hexagonal nut with a standard hexagonal screw hole in the center, one side of the large washer is tightly attached to the bottom surface of the nut, one side of the small washer is tightly attached to the guide groove annular wedge, and the other side is tightly attached to the large washer and the small washer, and the large washer and the small washer are fitted together.

[0018] As a preferred solution of the structure and close-contact node of the double shear damper of the present invention, the rolling wedge includes a guide groove annular wedge, a retaining bracket and a cylindrical roller, the guide groove annular wedge is provided with an annular guide groove for receiving the retaining bracket, the annular guide groove limits the irregular displacement of the cylindrical roller, the cross section of the guide groove annular wedge has a slotted pier wedge shape, the pier wedge cross section includes two parts, a wedge portion and a pier head, the wedge portion has an elongated triangular pyramid shape and gradually thickens from the first end to the last end, the pier head is trapezoidal and smoothly transitions to the last end of the wedge portion, the cylindrical roller is made of a number of identical steel cylindrical balls, the cylindrical roller is provided in the retaining bracket, the retaining bracket uniformly isolates a number of cylindrical rollers, the cylindrical roller is rotatable in the retaining bracket, and the cylindrical roller-retaining bracket combination is embedded in the annular guide groove.

[0019] As a preferred solution of the structure of the double-shear damper and the tight-fitting node of the present invention, the inclined cross-section hole node plate includes a plate body and an inclined cross-section circular hole, a through-circular hole is provided in the center of the plate body, and the inner wall of the inclined cross-section circular hole is an inclined surface, which matches the shape of the side wall of the guide groove annular wedge.

[0020] As a preferred solution of the structure and tight-fitting node of the double shear damper of the present invention, the conversion transmission plate is a normal steel structural node plate member, and the conversion transmission plate is connected to the inclined cross-section hole node plate. Effect of the Invention

[0021] The structure and close-contact node of the two-stage shear damper of the present invention have the following beneficial effects: by providing a one-stage wedge link mechanism and a two-stage wedge link mechanism, the "relative linear displacement" of the link member end can be strongly restrained, and by providing the first hinge point, the second hinge point, and the third hinge point, the node bending restraint can be released, solving the problem that the shear damper connection does not have a strong restraining ability of the "relative linear displacement" of the link member end, and the node is difficult to completely release the bending restraint on the end of the rod member. [Brief description of the drawings]

[0022] In order to more clearly describe the technical solutions of the embodiments of the present invention, the accompanying drawings that need to be used in the description of the embodiments are briefly described below. Obviously, the accompanying drawings described below are only some embodiments of the present invention, and those skilled in the art can obtain other drawings based on these accompanying drawings without creative labor. [Figure 1] FIG. 1 is a schematic diagram of a dual-shear damper of the present invention. [Diagram 2] FIG. 2 is an enlarged schematic view of a first hinge point of the present invention. [Diagram 3] FIG. 2 is an enlarged schematic view of a second hinge point of the present invention. [Figure 4] FIG. 2 is an enlarged schematic view of a third hinge point of the present invention. [Diagram 5] FIG. 2 is an exploded schematic view of each component of the first hinge point of the present invention. [Figure 6] FIG. 2 is a schematic diagram of the rolling wedge contact hinge point of the present invention. [Figure 7] FIG. 2 is a schematic diagram of a rolling wedge according to an embodiment of the present invention. [Figure 8] 1 is a flowchart of an assembly process for a dual-shear damper according to an embodiment of the present invention. [Figure 9] FIG. 1 is a schematic diagram illustrating the use of a dual shear damper according to an embodiment of the present invention as an inter-layer energy dissipation connection in a structure. [Figure 10]FIG. 1 is a schematic diagram illustrating the use of a dual shear damper according to an embodiment of the present invention in an energy dissipative connection between adjacent building structures. [Figure 11] FIG. 1 is a schematic diagram illustrating the use of a dual-shear damper according to an embodiment of the present invention in an energy dissipative connection between a large roof and the ground. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0023] In order to make the above objects, features and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings in the specification.

[0024] In order to facilitate an understanding of the present invention, numerous specific details are set forth in the following description; however, the present invention may be embodied in other forms different from those described herein, and those skilled in the art may accomplish the same without departing from the spirit and scope of the present invention. Accordingly, the present invention is not limited to the specific examples disclosed below.

[0025] Also, the term "one embodiment" or "embodiment" herein refers to a particular feature, structure, or characteristic that may be included in at least one embodiment of the present invention. The appearances of the phrase "in one embodiment" in various places in this specification do not always refer to the same embodiment, nor do they refer to an embodiment that is separate or mutually exclusive from other embodiments.

[0026] Example 1 Referring to FIG. 1 to FIG. 11, the first embodiment of the present invention provides a structure of a two-stage shear damper and a tight node, which includes: The device includes a total of six components: a first hinge point 1, a single-stage wedge link mechanism 2, a second hinge point 3, a two-stage wedge link mechanism 4, a third hinge point 5, and a fluid viscous damper 6. The two-stage wedge-shaped link mechanism 4 is made up of four small links 41 of the same length connected by hinges. The first hinge point 1 includes an end node plate group 11 and two novel first rolling wedge contact hinge points 12, where the end node plate group 11 includes two node plates 111, an inclined cross-section hole connection plate 112, and a number of reinforcing ribs 113, the inner wall of the inclined cross-section hole connection hole is an inclined surface, which matches the side wall shape of the first rolling wedge contact hinge point 12, and the two node plates 111 are orthogonally welded to form an L-shaped node plate group, and the inclined cross-section hole connection plate 112 is welded onto the L-shaped node plate group, and then a number of The reinforcing rib 113 is welded, where the L-shaped node plate group is used to connect various building structures, and the inclined cross-section hole connection plate 112 is hinged to the first rolling wedge contact hinge point 12, in the embodiment of the present invention, there are four reinforcing ribs 113, which are used to reinforce the end node plate group 11, and the one-stage wedge-shaped link mechanism 2 of the inclined cross-section hole connection plate 112 is composed of four large links 21 of the same length hinged, and both ends of each large link 21 are respectively connected to the first hinge point 1 and the second hinge point 3; The second hinge point 3 includes four novel rolling wedge contact hinge points 31, 32, where the novel rolling wedge contact hinge point 31 with number 31 is connected to the single-stage wedge link 21, and the novel rolling wedge contact hinge point 32 with number 32 is connected to the double-stage wedge link 41; The two-stage wedge-shaped link mechanism 4 is formed by four small links 41 of the same length connected by hinges, and both ends of each small link 41 are connected to the second hinge point 3 and the third hinge point 5, respectively. The third hinge point 5 includes two novel second rolling wedge contact hinge points 51 and lugs 52 connected to a fluid viscous damper 6; Both ends of the fluid viscous damper 6 are connected to the third hinge point 5, The structure and assembly method of the novel rolling wedge contact hinge points included in the first hinge point 1, the second hinge point 3 and the third hinge point 5 are all the same.

[0027] The novel first rolling wedge contact hinge point 12 includes a pin shaft 121, a nut-washer combination 122, a rolling wedge 123, a sloped cross-section hole node plate 124, and a conversion transmission plate 125; The pin shaft 121 is a steel cylinder with standard pre-threads on both ends, which connects each node plate of the novel rolling wedge tight hinge point connection in series. The nut-washer combination 122 includes a nut 122-1, a large diameter washer 122-2, and a small diameter washer 122-3. The nut 122-1 is a hexagonal nut with a standard hexagonal screw hole in the center. One side of the large diameter washer 122-2 is in close contact with the bottom surface of the nut 122-1. One side of the small diameter washer 122-3 is in close contact with the guide groove annular wedge 123-1. The other side is in close contact with the large diameter washer 122-2 and the small diameter washer 122-3. The large diameter washer 122-2 and the small diameter washer 122-3 are fitted together to make the transmission of fastening force smoother. The rolling wedge 123 includes a guide groove annular wedge 123-1, a holding bracket 123-2, and a cylindrical roller 123-3. The guide groove annular wedge 123-1 is provided with an annular guide groove for receiving the holding bracket 123-2, and the annular guide groove limits the irregular displacement of the cylindrical roller 123-3. The cross section of the guide groove annular wedge 123-1 is a slotted pier wedge shape, and the pier wedge cross section includes two parts, a wedge portion and a pier head portion. The wedge portion is in the shape of an elongated triangular pyramid, and gradually thickens from the first end to the last end. The pier head portion is a slotted pier wedge. the section is trapezoidal and smoothly transitions to the final end of the wedge section; the cylindrical roller 123-3 includes a number of identical steel cylindrical balls; the cylindrical roller 123-3 is mounted within the retaining bracket 123-2, which evenly isolates the multiple cylindrical rollers; the cylindrical roller 123-3 is rotatable within the retaining bracket; the cylindrical roller 123-3-retaining bracket 123-2 combination is embedded within an annular guide groove, and the cylindrical roller-retaining bracket combination can roll unhindered in the corresponding annular guide groove; The inclined cross-section hole node plate 124 includes a plate body 124-1 and an inclined cross-section circular hole 124-2. The plate body 124-1 is a normal steel structural plate member with a through-hole in the center. The inner wall of the inclined cross-section circular hole 124-2 is an inclined surface, which matches the shape of the side wall of the guide groove annular wedge 123-1. The conversion transmission plate 125 is a normal steel structural node plate member, which is connected to the inclined cross-section hole node plate.

[0028] Regarding the assembly method of the novel rolling wedge contact hinge point, the first hinge point is taken as an example, but the assembly methods of the second and third hinge points are similar.

[0029] The support bracket 123-2 is embedded in the annular guide groove in advance, and the cylindrical rollers 123-3 are embedded in the support bracket 123-2. It is checked one by one whether each cylindrical roller 123-3 can rotate in the support bracket without any hindrance, and whether the cylindrical roller-support bracket combination can roll in the annular guide groove without any hindrance. The pin shaft 121 is passed through the inclined cross-section circular hole 124-2 of the first inclined cross-section hole node plate 124, and the rolling wedges 123 are symmetrically inserted between the pin shaft 121 and the hole wall of the inclined cross-section circular hole 124-2. The rolling wedges 123 are designed to be in line contact with the pin shaft 121, so as to avoid the stress concentration problem caused by the contact between the cylindrical rollers 123-3 and the pin shaft 121. Similarly, the pin shaft 121 is passed through the inclined cross-section hole connecting plate 112 and the second inclined cross-section hole node plate 124 in the end node plate group 11 in sequence, and the rolling wedge 123 is inserted. When the number of inclined cross-section hole node plates 124 is two or more, the rolling wedge 123 is also inserted in the above manner. Then, the nut-washer combination 122 is tightened to achieve a tight fit between the pin shaft 121-rolling wedge 123 of the end node plate group 11-inclined cross-section hole node plate 124, which meets the strong constraint requirement of the relative linear displacement of the end of the rod member due to the novel rolling wedge tight hinge point. Finally, the inclined cross-section hole node plate 124 and the conversion transmission plate 125 are welded together.

[0030] Example 2 The second embodiment of the present invention differs from the first embodiment in that the second embodiment provides an assembly method, which includes the following steps:

[0031] S1: According to a practical engineering application scenario, determine the reliable positions of the first hinge points 1 at both ends of the novel two-stage shear damper, and weld them to concrete structural members via the end node plates 11 of the first hinge points 1.

[0032] S2: First, draw an arc with the first hinge point 1 on the left side as its center and the length of the first link 21 as its radius, then draw an arc with the first hinge point 1 on the right side as its center and the length of the first link 21 as its radius, and find the two intersection points above and below where the two arcs intersect, i.e., the positions of the two second hinge points 3.

[0033] After determining the positions of the two first hinge points 1 and the two second hinge points 3, the assembly of the first hinge point 1, the one-stage wedge link mechanism 2, and the second hinge point 3 is completed in sequence. The first hinge point 1 and the second hinge point 3 all adopt the novel rolling wedge contact hinge point, and the assembly steps can be referred to the assembly method of the novel rolling wedge contact hinge point; S3: The two second hinge points 3 determined in step S2 are set as the two end points of the internal small movable quadrilateral support frame.

[0034] First, an arc is drawn with the upper second hinge point 3 as its center and the length of the small link 41 as its radius, and then an arc is drawn with the lower second hinge point 3 as its center and the length of the two-stage link 41 as its radius. The two arcs intersect to find the two intersection points on the left and right, i.e., the positions of the two third hinge points 5.

[0035] After determining the positions of the two third hinge points 5, the two-stage wedge link mechanism 4 is assembled with the four small links 41 and the third hinge points 5. The two third hinge points 5 are all made of rolling wedge contact hinge points, and the assembly method is the same as that of the first and second hinge points 1 and 3. For specific steps, refer to the assembly method of the new rolling wedge contact hinge point described above. S4: A fluid viscous damper 6 is installed between the two third hinge points 5 determined in S3.

[0036] Since there may be errors or assembly errors in both steps S2 and S3, an error will occur between the actual distance and the theoretical distance of the two third hinge points 5, and the error can be eliminated by adjusting the initial position of the piston in the cylinder.

[0037] It should be noted that the structure and arrangement of the present application as illustrated in the different exemplary embodiments are merely exemplary. Although only a few embodiments have been described in detail in this disclosure, those who refer to the contents of this disclosure may make many modifications (e.g., changes in size, scale, structure, shape and proportion of each component, and parameters (e.g., temperature, pressure, etc.), mounting arrangement, material use, color, orientation, etc.) without departing from the novel teachings and advantages of the subject matter described in this application. For example, a single molded component may be composed of multiple parts or components, the position of a component may be reversed or otherwise changed, and the nature or number or position of separate components may be changed or varied. Accordingly, all such modifications are intended to be included within the scope of the present invention. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, the clause "apparatus + function" is intended to cover structures that perform the functions described herein that are not only structurally equivalent, but also equivalent structures. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present invention. Therefore, it is intended that the present invention not be limited to a particular embodiment, but that it cover many modifications that will still fall within the scope of the appended claims.

[0038] Moreover, in order to provide a concise description of example embodiments, it is possible not to describe all of the features of an actual embodiment (i.e., features that are not relevant to the currently best mode of carrying out the invention or that are not relevant to the implementation of the invention).

[0039] It should be understood that numerous specific embodiment decisions may be made during the process of developing an actual embodiment, such as any engineering or design item. While such a development effort may be complex and time-consuming, for those of ordinary skill in the art having the benefit of this disclosure, it will nevertheless be a routine matter of design, manufacturing and production without undue experimentation.

[0040] In addition, the above embodiments are merely illustrative of the technical solutions of the present invention, and are not limiting. Although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that any modifications or equivalent replacements made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention shall be included in the scope of the claims of the present invention.

Claims

1. The vehicle comprises a total of six components: a first hinge point (1), a single-stage wedge link mechanism (2), a second hinge point (3), a two-stage wedge link mechanism (4), a third hinge point (5), and a fluid viscous damper (6); The structure and the sealed node of the two-stage shear damper are characterized in that the two-stage wedge-shaped link mechanism (4) is composed of four small links (41) of the same length connected by hinges.

2. The first hinge point (1) includes an end node plate group (11) and two first rolling wedge contact hinge points (12), the end node plate group (11) includes two node plates (111) that match the shape of the side walls of the first rolling wedge contact hinge point (12), an inclined cross-section hole connection plate (112), and a number of reinforcing ribs (113), the two node plates (111) are orthogonally welded to form an L-shaped node plate group, and the inclined cross-section hole connection plate (112) is The structure and close node of the two-stage shear damper according to claim 1, characterized in that: the first rolling wedge close hinge point (12) is hingedly connected to the first rolling wedge close hinge point (12); the number of the reinforcing ribs (113) is four; a large link (21) is provided on the inclined cross-section hole connecting plate (112); the four large links (21) of the same length are combined to form a wedge-shaped link mechanism (2); and both ends of the four large links (21) are respectively connected to the first hinge point (1) and the second hinge point (3).

3. 3. The structure and stuck node of a two-stage shear damper as claimed in claim 2, characterized in that the second hinge point (3) comprises a first rolling wedge stuck hinge point (31) and a second rolling wedge stuck hinge point (32), the first rolling wedge stuck hinge point (31) being connected to a large link (21) and the second rolling wedge stuck hinge point (32) being connected to a small link (41).

4. The structure and the sealed node of the two-stage shear damper according to claim 3, characterized in that both ends of each of the small links (41) are connected to a second hinge point (3) and a third hinge point (5), respectively.

5. The structure and close node of a two-stage shear damper according to claim 4, characterized in that the third hinge point (5) comprises two second rolling wedge close hinge points (51) and a lug (52) connected to the fluid viscous damper (6).

6. The structure and tight-fitting node of the two-stage shear damper according to claim 5, characterized in that both ends of the fluid viscous damper (6) are connected to a third hinge point (5) respectively.

7. The structure and close node of a dual shear damper according to claim 6, characterized in that a first rolling wedge close hinge point (12) is provided on the first hinge point (1), the second hinge point (3) and the third hinge point (5), respectively.

8. The structure and the sealed node of a two-stage shear type damper as claimed in claim 6 or 7, characterized in that the first rolling wedge sealed hinge point (12) includes a pin shaft (121), a nut-washer combination (122), a rolling wedge (123), an inclined cross-section hole node plate (124), and a conversion transmission plate (125).

9. The structure and the close-coupled node of the two-stage shear damper according to claim 8, characterized in that the pin shaft (121) is a steel cylinder with a standard pre-threaded screw thread on both ends, and the pin shaft (121) connects in series each node plate connected by a first rolling wedge close-coupled hinge point (12).

10. The structure and the contact node of the two-stage shear damper of claim 9, characterized in that the nut-washer combination (122) includes a nut (122-1), a large diameter washer (122-2) and a small diameter washer (122-3), the nut (122-1) is a hexagonal nut with a standard hexagonal screw hole in the center, one side of the large diameter washer (122-2) is tightly attached to the bottom surface of the nut (122-1), one side of the small diameter washer (122-3) is tightly attached to a guide groove annular wedge (123-1), and the other side is tightly attached to the large diameter washer (122-2) and the small diameter washer (122-3), and the large diameter washer (122-2) and the small diameter washer (122-3) are fitted together.

11. The rolling wedge (123) includes a guide groove annular wedge (123-1), a holding bracket (123-2), and a cylindrical roller (123-3), the guide groove annular wedge (123-1) is provided with an annular guide groove for receiving the holding bracket (123-2), the annular guide groove limits the irregular displacement of the cylindrical roller (123-3), the cross section of the guide groove annular wedge (123-1) has a slotted pier wedge shape, the pier wedge cross section includes two parts, a wedge portion and a pier head, the wedge portion has an elongated triangular pyramid shape, and is gradually thickened from the first end to the last end, The structure and the close contact node of the two-stage shear damper as described in claim 10, characterized in that the top of the crosspiece is trapezoidal and smoothly transitions to the last end of the wedge portion, the cylindrical roller (123-3) is made of a number of identical steel cylindrical balls, the cylindrical roller (123-3) is mounted in the retaining bracket (123-2), the retaining bracket (123-2) uniformly separates the number of cylindrical rollers, the cylindrical roller (123-3) is rotatable within the retaining bracket, and the cylindrical roller (123-3)-retaining bracket (123-2) combination is embedded in an annular guide groove.

12. The structure and the sealed node of the two-stage shear damper as described in claim 11, characterized in that the inclined cross-section hole node plate (124) includes a plate body (124-1) and an inclined cross-section circular hole (124-2), a through-circular hole is provided in the center of the plate body (124-1), and the inner wall of the inclined cross-section circular hole (124-2) is an inclined surface, which matches the shape of the side wall of the guide groove annular wedge (123-1).

13. The structure and tight-fitting node of the two-stage shear damper as described in claim 8, characterized in that the conversion transmission plate (125) is a normal steel structural node plate member, and the conversion transmission plate is connected to an inclined cross-section hole node plate.

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