Layered vertical energy dissipation support

Abstract

The application discloses a layered vertical energy dissipation support, and relates to the technical field of civil engineering structures, which comprises a lower steel cylinder assembly, an upper steel cylinder assembly and a middle energy dissipation assembly; the lower steel cylinder assembly is filled with concrete; the upper steel cylinder of the upper steel cylinder assembly is coaxially arranged with the lower steel cylinder and is located above the lower steel cylinder; the lower part of the upper steel cylinder is located outside the upper part of the lower steel cylinder, and an energy dissipation gap is formed between the lower part of the upper steel cylinder and the upper part of the lower steel cylinder; the middle energy dissipation assembly is arranged in the energy dissipation gap and is composed of a plurality of energy dissipation steel cylinders and a plurality of polyurethane layers alternately. The application provides flexible restoring force and damping through the polyurethane material, so that the support can effectively adapt to vertical tensile and compressive deformation, and the energy dissipation performance of the support is significantly improved through the shear deformation of the polyurethane material, and the shock absorption and vibration control performance of the support is improved. The support structure is reliable and is suitable for parts in structures that need to bear vertical loads and have shock absorption requirements.

Description

Technical Field

[0001] This invention relates to the field of civil engineering structural technology, and more specifically to a layered vertical energy-dissipating support. Background Technology

[0002] In the field of seismic damping technology for civil engineering structures, damping bearings, as key force transmission and energy dissipation components in the seismic resistance system, directly affect the safety and applicability of engineering structures under dynamic loads such as earthquakes and wind loads. Traditional damping bearings, such as lead-core rubber bearings or high-damping rubber bearings, typically focus on horizontal damping and energy dissipation design, but have significant shortcomings in vertical performance. Especially when subjected to large vertical tensile forces, the rubber layer in the bearing is prone to debonding from the steel plate or tearing itself, leading to premature bearing failure or affecting the normal use of the structure due to excessive deformation. In addition, the vertical stiffness and load-bearing capacity of existing bearings are limited, making it difficult to provide stable deformation capacity and energy dissipation performance under extreme load conditions, thus limiting their application in complex engineering environments.

[0003] Therefore, there is an urgent need for a new type of support structure that can effectively adapt to vertical tensile and compressive deformation, has good energy dissipation capacity and high stability, so as to improve the seismic safety and durability of the overall structure. Summary of the Invention

[0004] In view of this, the present invention provides a layered vertical energy dissipation bearing that provides bearing capacity under seismic action while having sufficient deformation capacity, can remain stable under extreme conditions, and has good seismic performance.

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

[0006] A layered vertical energy-dissipating support, comprising:

[0007] The lower steel cylinder assembly is filled with concrete.

[0008] The upper steel cylinder assembly has an upper steel cylinder arranged coaxially with the lower steel cylinder and located above the lower steel cylinder. The lower part of the upper steel cylinder is located outside the upper part of the lower steel cylinder, and an energy-dissipating gap is formed between the lower part of the upper steel cylinder and the upper part of the lower steel cylinder.

[0009] The central energy-consuming component is located within the energy-consuming gap and is composed of multiple energy-consuming steel cylinders and multiple layers of polyurethane alternatingly.

[0010] Through the above technical solution, this invention provides flexible restoring force and damping through polyurethane material, enabling the support to effectively adapt to vertical tensile and compressive deformation. Furthermore, the shear deformation of the polyurethane material dissipates energy, significantly improving the support's vibration reduction and control performance. This support structure is reliable and suitable for structural components that need to withstand vertical loads and also require vibration reduction.

[0011] Preferably, in the above-mentioned layered vertical energy-dissipating support, the polyurethane layer is a cylindrical structure, and multiple layers of the polyurethane layer and the energy-dissipating steel cylinder are alternately nested to form a multi-layered cylindrical structure.

[0012] Preferably, in the above-mentioned layered vertical energy-dissipating support, the polyurethane layer and the energy-dissipating steel cylinder are connected by vulcanization.

[0013] Preferably, in the above-mentioned layered vertical energy-dissipating support, the wall thickness of the energy-dissipating steel cylinder is less than the wall thickness of the lower steel cylinder and the upper steel cylinder.

[0014] Preferably, in the above-mentioned layered vertical energy-dissipating support, the lower steel cylinder assembly further includes a base plate, the lower steel cylinder is welded and fixed to the top surface of the base plate, and multiple lower anchor rods are fixed to the base plate by bolts, the multiple lower anchor rods being arranged around the lower steel cylinder.

[0015] Preferably, in the above-mentioned layered vertical energy-dissipating support, the upper steel cylinder assembly further includes a top plate, the upper steel cylinder is welded and fixed to the bottom surface of the top plate, and multiple upper anchor rods are fixed to the top plate by bolts, the multiple upper anchor rods being located inside the upper steel cylinder.

[0016] Preferably, in the above-mentioned layered vertical energy-dissipating support, the outer edge of the top plate extends beyond the outer edge of the upper steel cylinder, and an external stiffening rib is welded and fixed between the bottom surface of the top plate and the outer wall of the upper steel cylinder.

[0017] Preferably, in the above-mentioned layered vertical energy-dissipating support, an internal stiffening rib is welded and fixed to the bottom surface of the top plate, and the internal stiffening rib is located inside the upper steel cylinder.

[0018] Preferably, in the above-mentioned layered vertical energy-dissipating support, the number of internal stiffening ribs is multiple, and they are arranged to form a rectangle.

[0019] Preferably, in the above-mentioned layered vertical energy-dissipating support, multiple upper anchor rods are arranged around multiple internal stiffening ribs.

[0020] As can be seen from the above technical solution, compared with the prior art, this invention discloses a layered vertical energy-dissipating bearing. Compared with traditional damping bearings, this structure can provide better vertical deformation while ensuring higher load-bearing capacity. The multi-layered arrangement of energy-dissipating steel cylinders and polyurethane layers ensures the bearing capacity and stiffness of the bearing under vertical tensile force; the lower steel cylinder and the concrete filling inside it ensure the bearing capacity under vertical compressive force; at the same time, the multi-layered arrangement of energy-dissipating steel cylinders and polyurethane layers more stably transfers the stress of the upper steel cylinder to the lower steel cylinder, resulting in uniform stress distribution and avoiding stress concentration; stiffening ribs strengthen the overall rigidity of the structure and prevent structural failure due to local instability. This ensures that the bearing has sufficient stability and safety under seismic action and dynamic loads. The layered vertical energy-dissipating bearing of this invention uses cost-effective materials and is easy to construct. Through reasonable structural design, it achieves better mechanical performance, avoiding the use of expensive materials or complex processes, and has high economic efficiency. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0022] Figure 1 The attached figure is a schematic cross-sectional view of the layered vertical energy-dissipating support provided by the present invention.

[0023] Figure 2 The attached figure is a schematic diagram of the external structure of the layered vertical energy-dissipating support provided by the present invention;

[0024] Figure 3 The attached figure is a top view of the layered vertical energy-dissipating support provided by the present invention;

[0025] Figure 4 The attached figure is a schematic cross-sectional view of the upper steel cylinder assembly of the layered vertical energy-dissipating support provided by the present invention.

[0026] Figure 5 The attached figure is a schematic cross-sectional view of the upper steel cylinder assembly and the middle energy-dissipating assembly of the layered vertical energy-dissipating support provided by the present invention.

[0027] Figure 6 The attached figure is a cross-sectional schematic diagram of the middle energy-dissipating component of the layered vertical energy-dissipating support provided by the present invention.

[0028] Figure 7 The attached figure is a cross-sectional structural schematic diagram of the lower steel cylinder assembly of the layered vertical energy-dissipating support provided by the present invention.

[0029] Figure 8 The attached figure is a schematic diagram of the deformation of the finite element model of Embodiment 1 provided by the present invention under tension.

[0030] Figure 9 The attached figure is a schematic diagram of the deformation of the finite element model of Embodiment 1 provided by the present invention under compression.

[0031] Figure 10 The attached figure shows the hysteresis curve of the finite element model of Embodiment 1 provided by the present invention under vertical cyclic loading.

[0032] in:

[0033] 1-Lower steel cylinder assembly;

[0034] 11-Lower steel cylinder; 12-Concrete; 13-Base plate; 14-Lower anchor bolt;

[0035] 2-Upper steel cylinder assembly;

[0036] 21-Upper steel cylinder; 22-Top plate; 23-Upper anchor bolt; 24-External stiffening rib; 25-Internal stiffening rib;

[0037] 3-Central energy-consuming components;

[0038] 31 - Energy-consuming steel cylinder; 32 - Polyurethane layer. Detailed Implementation

[0039] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0040] See appendix Figure 1 Appendix Figure 2 and attached Figure 6 This invention discloses a layered vertical energy-dissipating support, comprising:

[0041] The lower steel cylinder assembly 1 is filled with concrete 12 inside the lower steel cylinder 11 of the lower steel cylinder assembly 1.

[0042] The upper steel cylinder assembly 2 has an upper steel cylinder 21 and a lower steel cylinder 11 arranged coaxially and located above the lower steel cylinder 11. The lower part of the upper steel cylinder 21 is located outside the upper part of the lower steel cylinder 11, and an energy-consuming gap is formed between the lower part of the upper steel cylinder 21 and the upper part of the lower steel cylinder 11.

[0043] The central energy-consuming component 3 is located within the energy-consuming gap and is composed of multiple energy-consuming steel cylinders 31 and multiple polyurethane layers 32 alternately.

[0044] See appendix Figure 5 and attached Figure 6 The polyurethane layer 32 has a cylindrical structure, and multiple polyurethane layers 32 and energy-consuming steel cylinder 31 are alternately nested to form a multi-layer cylindrical structure.

[0045] To further optimize the above technical solution, the polyurethane layer 32 and the energy-consuming steel cylinder 31 are connected by vulcanization.

[0046] To further optimize the above technical solution, the wall thickness of the energy-consuming steel cylinder 31 is smaller than the wall thickness of the lower steel cylinder 11 and the upper steel cylinder 21.

[0047] See appendix Figure 1 Appendix Figure 2 and attached Figure 7 The lower steel cylinder assembly 1 also includes a base plate 13. The lower steel cylinder 11 is welded and fixed to the top surface of the base plate 13. Multiple lower anchor rods 14 are fixed to the base plate 13 by bolts. The multiple lower anchor rods 14 are arranged around the lower steel cylinder 11.

[0048] See appendix Figure 1 To be continued Figure 4 The upper steel cylinder assembly 2 also includes a top plate 22. The upper steel cylinder 21 is welded and fixed to the bottom surface of the top plate 22. Multiple upper anchor rods 23 are fixed to the top plate 22 by bolts. The multiple upper anchor rods 23 are located inside the upper steel cylinder 21.

[0049] To further optimize the above technical solution, the outer edge of the top plate 22 extends beyond the outer edge of the upper steel cylinder 21, and an external stiffening rib 24 is welded and fixed between the bottom surface of the top plate 22 and the outer wall of the upper steel cylinder 21.

[0050] To further optimize the above technical solution, an internal stiffening rib 25 is welded and fixed to the bottom surface of the top plate 22. The internal stiffening rib 25 is located inside the upper steel cylinder 21.

[0051] To further optimize the above technical solution, the number of internal stiffening ribs 25 is multiple, and they are enclosed to form a rectangle.

[0052] To further optimize the above technical solution, multiple upper anchor bolts 23 are arranged around multiple internal stiffening ribs 25.

[0053] Example 1:

[0054] See appendix Figure 4 To be continued Figure 7 In this embodiment, both the top plate 22 and the bottom plate 13 are rectangular, both made of steel plates, and are fixed by welding.

[0055] See appendix Figure 8 To the attached Figure 10In this embodiment, based on the structural characteristics of the layered vertical energy dissipation support, a model was created in Abaqus finite element analysis software and a vertical cyclic load was applied to its top, thereby obtaining the hysteresis curve of the layered vertical energy dissipation support.

[0056] This embodiment utilizes polyurethane to provide flexible restoring force and damping, enabling the support to effectively adapt to vertical tensile and compressive deformation and dissipate energy through the shear deformation of polyurethane; thus significantly improving the vibration reduction and vibration control performance of the support.

[0057] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since it corresponds to the method disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.

[0058] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A layered vertical energy-dissipating support, characterized in that, include: The lower steel cylinder assembly (1) is filled with concrete (12) in the lower steel cylinder (11); The upper steel cylinder assembly (2) has an upper steel cylinder (21) arranged coaxially with the lower steel cylinder (11) and located above the lower steel cylinder (11). The lower part of the upper steel cylinder (21) is located outside the upper part of the lower steel cylinder (11), and an energy-consuming gap is formed between the lower part of the upper steel cylinder (21) and the upper part of the lower steel cylinder (11). The central energy-consuming component (3) is located within the energy-consuming gap and is composed of multiple energy-consuming steel cylinders (31) and multiple polyurethane layers (32) alternatingly.

2. The layered vertical energy-dissipating support according to claim 1, characterized in that, The polyurethane layer (32) has a cylindrical structure, and multiple layers of the polyurethane layer (32) and the energy-consuming steel cylinder (31) are alternately nested to form a multi-layer cylindrical structure.

3. A layered vertical energy-dissipating support according to claim 2, characterized in that, The polyurethane layer (32) and the energy-consuming steel cylinder (31) are connected by vulcanization.

4. A layered vertical energy-dissipating support according to claim 2, characterized in that, The wall thickness of the energy-consuming steel cylinder (31) is less than that of the lower steel cylinder (11) and the upper steel cylinder (21).

5. A layered vertical energy-dissipating support according to claim 1, characterized in that, The lower steel cylinder assembly (1) also includes a base plate (13). The lower steel cylinder (11) is welded and fixed to the top surface of the base plate (13). Multiple lower anchor rods (14) are fixed to the base plate (13) by bolts. The multiple lower anchor rods (14) are arranged around the lower steel cylinder (11).

6. A layered vertical energy-dissipating support according to claim 1, characterized in that, The upper steel cylinder assembly (2) also includes a top plate (22). The upper steel cylinder (21) is welded and fixed to the bottom surface of the top plate (22). Multiple upper anchor rods (23) are fixed to the top plate (22) by bolts. The multiple upper anchor rods (23) are located inside the upper steel cylinder (21).

7. A layered vertical energy-dissipating support according to claim 6, characterized in that, The outer edge of the top plate (22) extends beyond the outer edge of the upper steel cylinder (21), and an external stiffening rib (24) is welded and fixed between the bottom surface of the top plate (22) and the outer wall of the upper steel cylinder (21).

8. A layered vertical energy-dissipating support according to claim 6, characterized in that, The top plate (22) is welded and fixed with an internal stiffening rib (25) on its bottom surface, and the internal stiffening rib (25) is located on the inner side of the upper steel cylinder (21).

9. A layered vertical energy-dissipating support according to claim 8, characterized in that, The number of internal stiffening ribs (25) is multiple, and they are arranged to form a rectangle.

10. A layered vertical energy-dissipating support according to claim 9, characterized in that, Multiple upper anchor bolts (23) are arranged around multiple internal stiffening ribs (25).

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