Joint device with anti-seismic and self-resetting functions for steel structure

Abstract

The utility model discloses a node device with anti-seismic and self-resetting functions for a steel structure, which comprises a mild steel plate type spring, a first steel encircling sleeve mechanism, a second steel encircling sleeve mechanism, a third steel encircling sleeve mechanism and a triangular steel plate, and the first steel encircling sleeve mechanism, the second steel encircling sleeve mechanism and the third steel encircling sleeve mechanism are sleeved on a cross beam and a vertical column which are mutually orthogonal. The mild steel plate type spring is hinged to the first steel encircling sleeve mechanism and the second steel encircling sleeve mechanism, and the vertex angle of each triangular steel plate is connected with the first steel encircling sleeve mechanism, the second steel encircling sleeve mechanism and the third steel encircling sleeve mechanism. The joint is simple in structure and convenient and rapid to construct, the working efficiency is greatly improved, restoring force can be provided to enable the joint to have the self-resetting capacity in the deformation process of an earthquake, meanwhile, after the joint is restored to the normal state, the limiting plate plays a role of a pull rod to limit continuous excessive deformation of the joint, and therefore the joint has the good active anti-seismic function.

Description

Technical Field

[0001] The utility model relates to a node device for steel structures with earthquake-resistant self-resetting function. Background Art

[0002] The beam-column joint is very important for the entire building structure. Therefore, the earthquake-resistant performance of the beam-column joint needs to be strengthened. In the prior art, the beam-column joint is generally strengthened by directly increasing the amount of concrete at the beam-column joint. However, this method requires formwork support and wet concrete operation, with complex operations and low work efficiency.

[0003] Therefore, a node device for steel structures with earthquake-resistant self-resetting function, which is simple in structure and convenient for installation, is urgently needed to be proposed. Summary of the Utility Model

[0004] To solve the defects existing in the prior art, the utility model provides a node device for steel structures with earthquake-resistant self-resetting function.

[0005] To solve the above technical problems, the utility model provides the following technical solutions:

[0006] The utility model provides a node device for steel structures with earthquake-resistant self-resetting function, including a soft steel plate spring, a first steel jacket mechanism, a second steel jacket mechanism, a third steel jacket mechanism and two triangular steel plates. The first steel jacket mechanism, the second steel jacket mechanism and the third steel jacket mechanism are distributed in a right triangle and sleeved on the mutually orthogonal cross beam and column. The soft steel plate spring is respectively hinged with the first steel jacket mechanism and the second steel jacket mechanism. The two triangular steel plates are parallel to each other, and the apex angles of each triangular steel plate are respectively connected with the first steel jacket mechanism, the second steel jacket mechanism and the third steel jacket mechanism.

[0007] Preferably, the soft steel plate spring includes at least two spring plates and a spring constraint component which are stacked in sequence from bottom to top. The length dimensions of the spring plates gradually increase from bottom to top. Open-shaped connecting shaft sleeves are wound at both ends of the spring plate with the largest length dimension in the length direction. The spring constraint component stacks and fixes the spring plates into one body.

[0008] Preferably, the spring constraint component includes at least 2 spring constraint units, each spring constraint unit is fixed along the length direction of the spring plate. Each spring constraint includes an upper screw rod, a lower screw rod, a fastening nut and 2 connecting plates. The connecting plates are symmetrically arranged on both sides of the spring plate in the length direction. The upper screw rod and the lower screw rod are respectively arranged on the upper surface of the uppermost spring plate and the lower surface of the lowermost spring plate. The two ends of the upper screw rod and the lower screw rod in the length direction respectively penetrate through the connecting plates and are fixed by the fastening nuts.

[0009] Preferably, a damping layer is further provided on the outer surface of the connecting plate.

[0010] Preferably, the first steel jacket mechanism and the second steel jacket mechanism are located at two acute angles of a right triangle, and the third steel jacket mechanism is located at the right angle of the right triangle.

[0011] Preferably, the first steel jacket mechanism includes a first square-shaped steel jacket support, a first steel pin fixing seat, a first steel pin, and a fastening nut. The first square-shaped steel jacket support is sleeved on the column, the first steel pin fixing seat is arranged on at least one side surface of the first square-shaped steel jacket support, and after the first steel pin passes through a connecting shaft sleeve of the spring plate, both ends in its length direction are fixed to the first steel pin fixing seat by the first fastening nut;

[0012] The second steel jacket mechanism includes a second square-shaped steel jacket support, a second steel pin fixing seat, a second steel pin, and a second fastening nut. The second square-shaped steel jacket support is sleeved on the cross beam, the second steel pin fixing seat is arranged on any side surface of the second square-shaped steel jacket support, and after the second steel pin passes through the other connecting shaft sleeve of the spring plate, both ends in its length direction are fixed to the second steel pin fixing seat by the second fastening nut;

[0013] The third steel jacket mechanism includes a third square-shaped steel jacket support and an anchor plate. The third square-shaped steel jacket support is arranged on the cross beam or column that are orthogonal to each other, and the anchor plate is arranged on at least one side surface of the third square-shaped steel jacket support.

[0014] Preferably, the triangular steel plate has a right triangle structure. A first connection hole and a second connection hole are respectively provided at two acute angles of the triangular steel plate. The triangular steel plate is installed at both ends of the first steel pin and the second steel pin through the first connection hole and the second connection hole; a third connection hole is provided at the right angle of the triangular steel plate. The triangular steel plate is installed on the anchor plate of the third steel jacket mechanism through the third connection hole, the third steel pin, and the third fastening nut; at least two long slot holes are further provided on one side of the triangular steel plate located at the hypotenuse of the triangle. The triangular steel plate is installed at both ends of the upper screw rod and the lower screw rod through the long slot holes, and the inner surface of the triangular steel plate is in fitting connection with the outer surface of the connecting plate.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] The utility model has a simple structure, is convenient and fast to construct, greatly improves work efficiency, can provide a restoring force to enable the joint to have the ability of self-resetting during the deformation in an earthquake, and at the same time, after returning to the normal state, the limiting plate plays the role of a tie rod to limit the continuous excessive deformation of the joint, so that the joint has good active earthquake resistance function. The utility model can be applied to new and old steel structure system buildings, and has important engineering significance and practical application value especially for key buildings and protected buildings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 FIG. is a schematic diagram of the overall structure of a joint device for a steel structure with earthquake-resistant self-resetting function of the utility model;

[0018] Figure 2 is the utility model Figure 1 The enlarged schematic view of part A in;

[0019] Figure 3 is the structural schematic diagram of the soft steel plate spring in the utility model;

[0020] Figure 4 is the structural schematic diagram of the first steel jacket mechanism in the utility model;

[0021] Figure 5 is the structural schematic diagram of the second steel jacket mechanism in the utility model;

[0022] Figure 6 is the structural schematic diagram of the third steel jacket mechanism in the utility model;

[0023] Figure 7 is the structural schematic diagram of the triangular steel in the utility model. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0024] The following describes the preferred embodiments of the utility model with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only for the purpose of illustrating and explaining the utility model, and are not used to limit the utility model.

[0025] In the description of the utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. are all based on the orientation or positional relationship shown in the drawings of the specification Figure 1 shown orientation or positional relationship, and are only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the utility model.

[0026] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0027] As Figures 1 to 7 shown, this embodiment provides a joint device for a steel structure with earthquake-resistant self-resetting function, which includes a soft steel plate spring 4, a first steel jacket mechanism 1, a second steel jacket mechanism 2, a third steel jacket mechanism 3, and two triangular steel plates 5. The soft steel plate spring 4 is respectively hinged to the first steel jacket mechanism 1 and the second steel jacket mechanism 2, and the two triangular steel plates 5 are parallel to each other, and the apex angles of each triangular steel plate 5 are respectively connected to the first steel jacket mechanism 1, the second steel jacket mechanism 2, and the third steel jacket mechanism 3.

[0028] As Figure 3 shown, the soft steel plate spring 4 includes five spring plates 41 stacked in sequence from bottom to top and a spring constraint assembly. The length dimensions of the spring plates 41 gradually increase from bottom to top. Open-shaped connecting bushings 45 are wound around both ends of the spring plate 41 with the largest length dimension in the length direction. The spring constraint assembly stacks and fixes the spring plates into one body.

[0029] Specifically, the spring constraint assembly includes two spring constraint units, each spring constraint unit is fixed along the length direction of the spring plate. Each spring constraint includes an upper screw 42, a lower screw 43, a fastening nut, and two connecting plates 44. The connecting plates 44 are symmetrically arranged on both sides of the spring plate 41 in the length direction. The upper screw 42 and the lower screw 43 are respectively arranged on the upper surface of the uppermost spring plate 41 and the lower surface of the lowermost spring plate 41. Both ends of the upper screw 42 and the lower screw 43 in the length direction pass through the connecting plates 44 and are fixed by the fastening nuts. A damping layer is also provided on the outer surface of the connecting plate 44. When installed and used, the damping layer is in contact with the triangular steel plate to play a damping role.

[0030] Specifically, the first steel jacket mechanism 1, the second steel jacket mechanism 2, and the third steel jacket mechanism 3 are distributed in a right triangle and sleeved on the cross beam and the column that are orthogonal to each other. The first steel jacket mechanism and the second steel jacket mechanism are located at the two acute angles of the right triangle, and the third steel jacket mechanism is located at the right angle of the right triangle.

[0031] As Figure 4As shown in the figure, the first steel jacket mechanism includes a first square-shaped steel jacket support 11, a first steel pin fixing seat 12, a first steel pin 13, and a first fastening nut. The first square-shaped steel jacket support is sleeved on the column. The first steel pin fixing seat 12 is arranged on two opposite side surfaces of the first square-shaped steel jacket support 11. After the first steel pin 13 passes through a connecting bushing 45 of the spring plate, both ends in its length direction are fixed to the first steel pin fixing seat 12 by the first fastening nut. As Figure 5 shown in the figure, the second steel jacket mechanism includes a second square-shaped steel jacket support 21, a second steel pin fixing seat 22, a second steel pin 23, and a second fastening nut. The second square-shaped steel jacket support 21 is sleeved on the cross beam. The second steel pin fixing seat 22 is arranged on any one side surface of the second square-shaped steel jacket support 21. After the second steel pin 23 passes through the other connecting bushing 45 of the spring plate, both ends in its length direction are fixed to the second steel pin fixing seat 22 by the second fastening nut. As Figure 6 shown in the figure, the third steel jacket mechanism includes a third square-shaped steel jacket support 31 and an anchor plate 32. The third square-shaped steel jacket support 31 is arranged on the cross beam. The anchor plate 32 is arranged on two opposite side surfaces of the third square-shaped steel jacket support 31.

[0032] As Figure 7 shown in the figure, the triangular steel plate 5 is a right triangle structure. A first connection hole 51 and a second connection hole 52 are respectively arranged at two acute angles of the triangular steel plate. The triangular steel plate is installed at both ends of the first steel pin 13 and the second steel pin 23 through the first connection hole 51 and the second connection hole 52. A third connection hole 53 is arranged at the right angle of the triangular steel plate 5. The triangular steel plate 5 is installed on the anchor plate 32 of the third steel jacket mechanism through the third connection hole 53, a third steel pin, and a third fastening nut. Two long slot holes 54 are also arranged on one side of the triangular steel plate 5 along the hypotenuse of the triangle. The triangular steel plate 5 is installed at both ends of the upper screw rod 42 and the lower screw rod 43 through the long slot holes 54. The inner surface of the triangular steel plate 5 is in fitting connection with the outer surface of the connecting plate 44.

[0033] The utility model can be applied to new and old steel structure system buildings, can provide restoring force and damping force, enable the steel structure joints to have the ability of self-resetting during the deformation in the earthquake process, and at the same time can limit the continuous excessive deformation of the joints, so that the joints have good active seismic resistance function. According to the design requirements, multiple arrangements can be made for different joints, and further the overall active seismic resistance ability of the steel structure can be improved.

[0034] The working principle of this embodiment is further described as follows: Fix the first steel pin fixing seat, the second steel pin fixing seat and the anchor plate in accordance with the design requirements and adjust the directions, and weld them in advance on the first square steel jacket support, the second square steel jacket support and the third square steel jacket support respectively. Then, sleevethe first square steel jacket support, the second square steel jacket support and the third square steel jacket support on the mutually orthogonal cross beam and column in a right triangle shape respectively.

[0035] Fix the upper screw rod 42, the lower screw rod 43, the fastening nut and the two connecting plates 44 on the spring plate according to the design parameter requirements, and install the connecting shaft sleeves at both ends of the spring plate on the first steel pin fixing seat and the second steel pin fixing seat respectively through the first steel pin and the second steel pin.

[0036] Install the triangular steel plate on the first steel pin fixing seat, the second steel pin fixing seat and the anchor plate, and fix it with the first steel pin, the second steel pin, the first fastening nut, the second fastening nut, the third steel pin and the third fastening nut.

[0037] During the deformation in an earthquake, when the node changes from a right angle to an acute angle, the soft steel plate spring is squeezed and the triangular steel plate provides damping force; when the extrusion displacement is too large, the soft steel plate spring begins to rebound to provide a restoring force. When the node changes from a right angle to an obtuse angle, the longest side plate of the plate type soft steel spring is stretched and begins to become a tension rod to provide tension. The acute angle and the obtuse angle alternate, so this node has good active earthquake resistance function, and the restoring force, damping force and tension can be calculated as design parameters through the material strength and the cross-sectional area of the component.

[0038] According to the design requirements, multiple arrangements can be made for different nodes, which can further improve the overall active earthquake resistance ability of the steel structure.

[0039] This utility model adopts a non-destructive technical method and means to endow the steel structure node with the ability of self-resetting, and at the same time can limit the continuous excessive deformation of this node. The soft steel plate spring adopts low yield strength steel (such as LY100 / LY160 / LY225, etc.), thus endowing this node with good active earthquake resistance function. This utility model has a simple structure, is convenient for design, manufacture and construction, has remarkable effects, is practical and feasible, and has important engineering significance and practical application value especially for key buildings and protected buildings.

[0040] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A node device for a steel structure with a seismic self-resetting function, characterized in that: The invention comprises a soft steel leaf spring (4), a first steel sleeve mechanism (1), a second steel sleeve mechanism (2), a third steel sleeve mechanism (3) and two triangular steel plates (5), wherein the first steel sleeve mechanism (1), the second steel sleeve mechanism (2) and the third steel sleeve mechanism (3) are arranged in a right triangle and are sleeved on mutually orthogonal crossbeams and columns, the soft steel leaf spring (4) is hinged to the first steel sleeve mechanism (1) and the second steel sleeve mechanism (2), respectively, the two triangular steel plates (5) are parallel to each other and the top angle of each triangular steel plate (5) is connected to the first steel sleeve mechanism (1), the second steel sleeve mechanism (2) and the third steel sleeve mechanism (3) respectively; The soft steel leaf spring (4) comprises at least two spring plates (41) and a spring constraint assembly which are stacked in sequence from bottom to top. The length dimensions of the spring plates (41) are gradually increased from bottom to top. The spring plates (41) with the largest length dimension are wound with open-shaped connecting sleeves (45) at both ends in the length direction. The spring constraint assembly fixes the stacked spring plates into one piece. The spring constraint assembly comprises at least two spring constraint units. Each spring constraint unit is fixed along the length direction of the spring plates. Each spring constraint comprises an upper screw rod (42), a lower screw rod (43), a fastening nut and two connecting plates (44). The connecting plates (44) are symmetrically arranged on both sides of the spring plates (41) in the length direction. The upper screw rod (42) and the lower screw rod (43) are respectively arranged on the upper surface of the uppermost spring plate (41) and the lower surface of the lowermost spring plate (41). The ends of the upper screw rod (42) and the lower screw rod (43) in the length direction are respectively passed through the connecting plates (44) and fixed by fastening nuts.

2. The node device for steel structure with earthquake-resistant self-resetting function according to claim 1 is characterized in that: A damping layer is also provided on the outer surface of the connecting plate (44).

3. The node device for steel structure with earthquake-resistant self-resetting function according to any one of claims 1-2, characterized in that: The first steel enclosure mechanism and the second steel enclosure mechanism are located at two acute angles of the right triangle, and the third steel enclosure mechanism is located at the right angle of the right triangle.

4. The node device for steel structure with earthquake-resistant self-resetting function according to claim 1, characterized in that: The first steel sleeve mechanism comprises a first U-shaped steel sleeve support (11), a first steel pin fixing seat (12), a first steel pin (13) and a first fastening nut, wherein the first U-shaped steel sleeve support is sleeved on the column, the first steel pin fixing seat (12) is arranged on at least one side surface of the first U-shaped steel sleeve support (11), and the first steel pin (13) passes through a connecting shaft sleeve (45) of the spring plate and its two ends in the length direction are fixed to the first steel pin fixing seat (12) by means of a first fastening nut; The second steel sleeve mechanism comprises a second U-shaped steel sleeve support (21), a second steel pin fixing seat (22), a second steel pin (23) and a second fastening nut, wherein the second U-shaped steel sleeve support (21) is sleeved on the crossbeam, the second steel pin fixing seat (22) is arranged on any side surface of the second U-shaped steel sleeve support (21), and after the second steel pin (23) passes through another connecting shaft sleeve (45) of the spring plate, both ends of the second steel pin (23) in the length direction are fixed to the second steel pin fixing seat (22) by means of a second fastening nut; The third steel sleeve mechanism comprises a third U-shaped steel sleeve support (31) and an anchor plate (32); the third U-shaped steel sleeve support (31) is arranged on mutually orthogonal crossbeams or columns; and the anchor plate (32) is arranged on at least one side surface of the third U-shaped steel sleeve support (31).

5. The node device for steel structure with earthquake-resistant self-resetting function according to claim 4 is characterized in that: The triangular steel plate (5) is a right-angled triangle structure. A first connecting hole (51) and a second connecting hole (52) are respectively provided at two acute angles of the triangular steel plate. The triangular steel plate is mounted on the two ends of the first steel pin (13) and the second steel pin (23) through the first connecting hole (51) and the second connecting hole (52). A third connecting hole (53) is provided at the right angle of the triangular steel plate (5). The triangular steel plate (5) is mounted on the anchor plate (32) of the third steel sleeve mechanism through the third connecting hole (53), the third steel pin and the third fastening nut. At least two long slot holes (54) are also provided on the triangular steel plate (5) and located on one side of the hypotenuse of the triangle. The triangular steel plate (5) is mounted on the two ends of the upper screw rod (42) and the lower screw rod (43) through the long slot holes (54). The inner surface of the triangular steel plate (5) and the outer surface of the connecting plate (44) are fitted and connected.

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